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[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
#
# Autogenerated by generate-bytecode-expectations.
#
---
wrap: yes
---
snippet: "
var x = 0;
while (false) { x = 99; break; continue; }
return x;
"
frame size: 1
parameter count: 1
[ignition] removed nop bytecode Nop bytecodes are required only for break locations in debugger. Since nop bytecode doesn't change program state we can remove all of them. There are at least two changes which this CL produce: - we don't provide break position when we load local variable (still provide when load variable from global), - we don't provide break position for statements without actual break positions (e.g. "a;") - these expressions should be super rare and user always can set breakpoint before or after this statement. More details in one pager: https://docs.google.com/a/google.com/document/d/1JXlQpfMa9vRojbE272b6GMBbrfh6m_00135iAUOJEz8/edit?usp=sharing Bug: v8:6425 Change-Id: I4aee73d497a84f7b5d89caa6dda6d3060567dfda Reviewed-on: https://chromium-review.googlesource.com/543161 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#46742}
2017-07-17 19:02:35 +00:00
bytecode array length: 5
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 97 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
while (false) {
x = x + 1;
};
return x;
"
frame size: 1
parameter count: 1
[ignition] removed nop bytecode Nop bytecodes are required only for break locations in debugger. Since nop bytecode doesn't change program state we can remove all of them. There are at least two changes which this CL produce: - we don't provide break position when we load local variable (still provide when load variable from global), - we don't provide break position for statements without actual break positions (e.g. "a;") - these expressions should be super rare and user always can set breakpoint before or after this statement. More details in one pager: https://docs.google.com/a/google.com/document/d/1JXlQpfMa9vRojbE272b6GMBbrfh6m_00135iAUOJEz8/edit?usp=sharing Bug: v8:6425 Change-Id: I4aee73d497a84f7b5d89caa6dda6d3060567dfda Reviewed-on: https://chromium-review.googlesource.com/543161 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#46742}
2017-07-17 19:02:35 +00:00
bytecode array length: 5
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 86 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
var y = 1;
while (x < 10) {
y = y * 12;
x = x + 1;
if (x == 3) continue;
if (x == 4) break;
}
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 54
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 53 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 65 S> */ B(LdaSmi), I8(10),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 65 E> */ B(TestLessThan), R(0), U8(0),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
B(JumpIfFalse), U8(38),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 56 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 75 S> */ B(Ldar), R(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 81 E> */ B(MulSmi), I8(12), U8(1),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 89 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 95 E> */ B(AddSmi), I8(1), U8(2),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 102 S> */ B(LdaSmi), I8(3),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 108 E> */ B(TestEqual), R(0), U8(3),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[interpreter] Make the comparison bytecode handlers collect type feedback. BUG=v8:5273 Review-Url: https://codereview.chromium.org/2286273002 Cr-Commit-Position: refs/heads/master@{#39006}
2016-08-30 10:21:02 +00:00
/* 114 S> */ B(Jump), U8(11),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 126 S> */ B(LdaSmi), I8(4),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 132 E> */ B(TestEqual), R(0), U8(4),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
/* 138 S> */ B(Jump), U8(5),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(40), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 147 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 156 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var i = 0;
while (true) {
if (i < 0) continue;
if (i == 3) break;
if (i == 4) break;
if (i == 10) continue;
if (i == 5) break;
i = i + 1;
}
return i;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 62
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
/* 62 S> */ B(LdaZero),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 68 E> */ B(TestLessThan), R(0), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 73 S> */ B(Jump), U8(45),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 85 S> */ B(LdaSmi), I8(3),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 91 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 97 S> */ B(Jump), U8(39),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 106 S> */ B(LdaSmi), I8(4),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 112 E> */ B(TestEqual), R(0), U8(2),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 118 S> */ B(Jump), U8(30),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 127 S> */ B(LdaSmi), I8(10),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 133 E> */ B(TestEqual), R(0), U8(3),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 140 S> */ B(Jump), U8(18),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 152 S> */ B(LdaSmi), I8(5),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 158 E> */ B(TestEqual), R(0), U8(4),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 164 S> */ B(Jump), U8(12),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 173 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 179 E> */ B(AddSmi), I8(1), U8(5),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(52), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 186 S> */ B(Ldar), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 195 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var i = 0;
while (true) {
while (i < 3) {
if (i == 2) break;
i = i + 1;
}
i = i + 1;
break;
}
return i;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 44
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 71 S> */ B(LdaSmi), I8(3),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 71 E> */ B(TestLessThan), R(0), U8(0),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
B(JumpIfFalse), U8(22),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 62 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 82 S> */ B(LdaSmi), I8(2),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 88 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 94 S> */ B(Jump), U8(12),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 105 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 111 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(24), I8(1),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 122 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 128 E> */ B(AddSmi), I8(1), U8(3),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[interpreter] Use VisitForTest for loop conditions Changes the control flow builder classes to make use of the BytecodeLabels helper class. BUG=v8:4280 LOG=n Review-Url: https://codereview.chromium.org/2254493002 Cr-Commit-Position: refs/heads/master@{#38744}
2016-08-19 09:21:38 +00:00
/* 135 S> */ B(Jump), U8(2),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 144 S> */ B(Ldar), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 153 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 10;
var y = 1;
while (x) {
y = y * 12;
x = x - 1;
}
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 34
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 42 S> */ B(LdaSmi), I8(10),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 54 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 64 S> */ B(Ldar), R(0),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
B(JumpIfToBooleanFalse), U8(20),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 57 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 71 S> */ B(Ldar), R(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 77 E> */ B(MulSmi), I8(12), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 85 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 91 E> */ B(SubSmi), I8(1), U8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(19), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 98 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 107 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
if (x == 6) continue;
x = x + 1;
} while (x < 10);
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 54
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 53 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 56 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 63 S> */ B(Ldar), R(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 69 E> */ B(MulSmi), I8(10), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 77 S> */ B(LdaSmi), I8(5),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 83 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 89 S> */ B(Jump), U8(28),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 98 S> */ B(LdaSmi), I8(6),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 104 E> */ B(TestEqual), R(0), U8(2),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 110 S> */ B(Jump), U8(9),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 122 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 128 E> */ B(AddSmi), I8(1), U8(3),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 144 S> */ B(LdaSmi), I8(10),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 144 E> */ B(TestLessThan), R(0), U8(4),
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
B(JumpIfFalse), U8(5),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(40), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 151 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 160 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 10;
var y = 1;
do {
y = y * 12;
x = x - 1;
} while (x);
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 32
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 42 S> */ B(LdaSmi), I8(10),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 54 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 57 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 64 S> */ B(Ldar), R(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 70 E> */ B(MulSmi), I8(12), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 78 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 84 E> */ B(SubSmi), I8(1), U8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
/* 98 S> */ B(JumpIfToBooleanFalse), U8(5),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(17), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 102 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 111 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
x = x + 1;
if (x == 6) continue;
} while (false);
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[ignition] removed nop bytecode Nop bytecodes are required only for break locations in debugger. Since nop bytecode doesn't change program state we can remove all of them. There are at least two changes which this CL produce: - we don't provide break position when we load local variable (still provide when load variable from global), - we don't provide break position for statements without actual break positions (e.g. "a;") - these expressions should be super rare and user always can set breakpoint before or after this statement. More details in one pager: https://docs.google.com/a/google.com/document/d/1JXlQpfMa9vRojbE272b6GMBbrfh6m_00135iAUOJEz8/edit?usp=sharing Bug: v8:6425 Change-Id: I4aee73d497a84f7b5d89caa6dda6d3060567dfda Reviewed-on: https://chromium-review.googlesource.com/543161 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#46742}
2017-07-17 19:02:35 +00:00
bytecode array length: 42
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 53 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 56 E> */ B(StackCheck),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 69 S> */ B(MulSmi), I8(10), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 77 S> */ B(LdaSmi), I8(5),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 83 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 89 S> */ B(Jump), U8(18),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 98 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 104 E> */ B(AddSmi), I8(1), U8(2),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 111 S> */ B(LdaSmi), I8(6),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 117 E> */ B(TestEqual), R(0), U8(3),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
/* 123 S> */ B(Jump), U8(2),
/* 150 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 159 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
x = x + 1;
if (x == 6) continue;
} while (true);
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 47
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 53 S> */ B(LdaSmi), I8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 56 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 63 S> */ B(Ldar), R(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 69 E> */ B(MulSmi), I8(10), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 77 S> */ B(LdaSmi), I8(5),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 83 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 89 S> */ B(Jump), U8(21),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 98 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 104 E> */ B(AddSmi), I8(1), U8(2),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 111 S> */ B(LdaSmi), I8(6),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 117 E> */ B(TestEqual), R(0), U8(3),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
/* 123 S> */ B(Jump), U8(2),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(33), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 149 S> */ B(Ldar), R(1),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 158 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (;;) {
if (x == 1) break;
if (x == 2) continue;
x = x + 1;
}
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 35
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 58 S> */ B(LdaSmi), I8(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 64 E> */ B(TestEqual), R(0), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 70 S> */ B(Jump), U8(21),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 79 S> */ B(LdaSmi), I8(2),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 85 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 91 S> */ B(Jump), U8(9),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 103 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 109 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(26), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 116 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
for (var x = 0;;) {
if (x == 1) break;
if (x == 2) continue;
x = x + 1;
}
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 35
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 47 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 34 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 56 S> */ B(LdaSmi), I8(1),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 62 E> */ B(TestEqual), R(0), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 68 S> */ B(Jump), U8(21),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 77 S> */ B(LdaSmi), I8(2),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 83 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 89 S> */ B(Jump), U8(9),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 101 S> */ B(Ldar), R(0),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 107 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(26), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 114 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (;; x = x + 1) {
if (x == 1) break;
if (x == 2) continue;
}
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 35
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 68 S> */ B(LdaSmi), I8(1),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 74 E> */ B(TestEqual), R(0), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 80 S> */ B(Jump), U8(21),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 89 S> */ B(LdaSmi), I8(2),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 95 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
/* 101 S> */ B(Jump), U8(2),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 55 S> */ B(Ldar), R(0),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 59 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(26), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 113 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
for (var x = 0;; x = x + 1) {
if (x == 1) break;
if (x == 2) continue;
}
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 1
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 35
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 47 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 34 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 66 S> */ B(LdaSmi), I8(1),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 72 E> */ B(TestEqual), R(0), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
/* 78 S> */ B(Jump), U8(21),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 87 S> */ B(LdaSmi), I8(2),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 93 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
/* 99 S> */ B(Jump), U8(2),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 53 S> */ B(Ldar), R(0),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 57 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(26), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 111 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var u = 0;
for (var i = 0; i < 100; i = i + 1) {
u = u + 1;
continue;
}
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 36
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 58 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 63 S> */ B(LdaSmi), I8(100),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
/* 63 E> */ B(TestLessThan), R(1), U8(0),
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
B(JumpIfFalse), U8(22),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 85 S> */ B(Ldar), R(0),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 91 E> */ B(AddSmi), I8(1), U8(1),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 98 S> */ B(Jump), U8(2),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 72 S> */ B(Ldar), R(1),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 76 E> */ B(AddSmi), I8(1), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(24), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 110 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var y = 1;
for (var x = 10; x; --x) {
y = y * 12;
}
return y;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
bytecode array length: 33
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 42 S> */ B(LdaSmi), I8(1),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 58 S> */ B(LdaSmi), I8(10),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 62 S> */ B(Ldar), R(1),
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
B(JumpIfToBooleanFalse), U8(19),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 74 S> */ B(Ldar), R(0),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 80 E> */ B(MulSmi), I8(12), U8(0),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 67 S> */ B(Ldar), R(1),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
B(Dec), U8(1),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(18), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 88 S> */ B(Ldar), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 97 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (var i = 0; false; i++) {
x = x + 1;
};
return x;
"
frame size: 2
parameter count: 1
bytecode array length: 10
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 58 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 91 S> */ B(Ldar), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 100 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (var i = 0; true; ++i) {
x = x + 1;
if (x == 20) break;
};
return x;
"
[interpreter] Bytecode register optimizer. Online optimization stage for reducing redundant transfers between registers. BUG=V8:4280 LOG=N Review-Url: https://codereview.chromium.org/1997653002 Cr-Commit-Position: refs/heads/master@{#36551}
2016-05-27 15:57:35 +00:00
frame size: 2
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
[Interpreter] Add expression positions to BinaryOps. BUG=v8:5723 Review-Url: https://codereview.chromium.org/2555263002 Cr-Commit-Position: refs/heads/master@{#41583}
2016-12-08 10:11:06 +00:00
bytecode array length: 36
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 58 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
Reland: [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator."" This relands commit d3e9aade0ff24e100621ab451e83f703439ace9e. The original CL was reverted speculatively but didn't cause the buildbot failure. Original change's description: > [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator. > > Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi > literals in the BytecodeGenerator. This enables us to perform the > transformation for literals on either side for commutative operations, and > Avoids having to do the check on every bytecode in the peephole optimizer. > > In the process, adds Smi bytecode variants for all binary operations, adding > - MulSmi > - DivSmi > - ModSmi > - BitwiseXorSmi > - ShiftRightLogical > > BUG=v8:6194 > > Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219 > Reviewed-on: https://chromium-review.googlesource.com/466246 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44477} TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=v8:6194 Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8 Reviewed-on: https://chromium-review.googlesource.com/472746 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#44511}
2017-04-10 09:30:51 +00:00
/* 76 S> */ B(Ldar), R(0),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 82 E> */ B(AddSmi), I8(1), U8(0),
[Interpreter] Preserve source positions in peephole optimizer. The original peephole optimizer logic in the BytecodeArrayBuilder did not respect source positions as it was written before there were bytecode source positions. This led to some minor differences to FCG and was problematic when combined with pending bytecode optimizations. This change makes the new peephole optimizer fully respect source positions. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1998203002 Cr-Commit-Position: refs/heads/master@{#36439}
2016-05-23 13:31:53 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 89 S> */ B(LdaSmi), I8(20),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
/* 95 E> */ B(TestEqual), R(0), U8(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(JumpIfFalse), U8(4),
[interpreter] Merge {OsrPoll} with {Jump} bytecode. This introduces a new {JumpLoop} bytecode to combine the OSR polling mechanism modeled by {OsrPoll} with the actual {Jump} performing the backwards branch. This reduces the overall size and also avoids one additional dispatch. It also makes sure that OSR polling is only done within real loops. R=rmcilroy@chromium.org BUG=v8:4764 Review-Url: https://codereview.chromium.org/2331033002 Cr-Commit-Position: refs/heads/master@{#39384}
2016-09-13 13:07:15 +00:00
/* 102 S> */ B(Jump), U8(11),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 69 S> */ B(Ldar), R(1),
[Cleanup][Interpreter] Move feedback slot allocation to bytecode generator Moves the feedback vector slot allocation out of ast-numbering and into bytecode generation directly. This has a couple of benifits, including reduced AST size, avoid code duplication and reduced feedback vector sizes in many cases due to only allocating slots when needed. Also removes AstProperties since this is no longer needed. AstNumbering is now only used to allocate suspend ids for generators. BUG=v8:6921 Change-Id: I103e8593c94ef5b2e56c34ef4f77bd6e7d64796f Reviewed-on: https://chromium-review.googlesource.com/722959 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48757}
2017-10-19 15:12:42 +00:00
B(Inc), U8(2),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
B(JumpLoop), U8(23), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 112 S> */ B(Ldar), R(0),
[inspector] improve return position of explicit return in non-async function Goal of this CL: explicit return from non-async function has position after return expression as return position (will unblock [1]). BytecodeArrayBuilder has SetStatementPosition and SetExpressionPosition methods. If one of these methods is called then next generated bytecode will get passed position. It's general treatment for most cases. Unfortunately it doesn't work for Returns: - debugger requires source positions exactly on kReturn bytecode in stepping implementation, - BytecodeGenerator::BuildReturn and BytecodeGenerator::BuildAsyncReturn generates more then one bytecode and general solution will put return position on first generated bytecode, - it's not easy to split BuildReturn function into two parts to allow something like following in BytecodeGenerator::VisitReturnStatement since generated bytecodes are actually controlled by execution_control(). ..->BuildReturnPrologue(); ..->SetReturnPosition(stmt); ..->Return(); In this CL we pass ReturnStatement through ExecutionControl and use it for position when we emit return bytecode right here. So this CL only will improve return position for returns inside of non-async functions, I'll address async functions later. [1] https://chromium-review.googlesource.com/c/543161/ Change-Id: Iede512c120b00c209990bf50c20e7d23dc0d65db Reviewed-on: https://chromium-review.googlesource.com/560738 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#46687}
2017-07-14 17:50:09 +00:00
/* 121 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
]
handlers: [
]
---
snippet: "
var a = 0;
while (a) {
{
let z = 1;
function f() { z = 2; }
if (z) continue;
z++;
}
}
"
[ignition] Eliminate hole checks where statically possible for loads and stores Move hole check logic from full-codegen into scope analysis, and store the "needs hole check" bit on VariableProxy. This makes it easy to re-use in any backend: it will be trivial to extend the use of this logic in, e.g., full-codegen variable stores. While changing the signatures of the variable loading/storing methods in Ignition, I took the liberty of replacing the verb "Visit" with "Build", since these are not part of AST visiting. BUG=v8:5460 Review-Url: https://chromiumcodereview.appspot.com/2411873004 Cr-Commit-Position: refs/heads/master@{#40479}
2016-10-20 17:31:36 +00:00
frame size: 4
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
parameter count: 1
Replace Context::closure with Context::scope_info, allowing closure to die. There are likely cleanups that can be done after this CL: - context-related functions in the interpreter and compiler take ScopeInfo as well as ScopeType and slot-count as input. The latter 2 should be directly derived from the former. We should be able to drop FunctionContextParameters. - ContextExtension is probably not needed anymore, since we now always have the correct scope_info directly in the SCOPE_INFO_INDEX slot. Bug: v8:7066 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67 Reviewed-on: https://chromium-review.googlesource.com/785151 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Hannes Payer <hpayer@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#52952}
2018-05-02 13:57:26 +00:00
bytecode array length: 50
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
bytecodes: [
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaZero),
[interpreter] Filter expression positions at source. With this change the bytecode array builder only emits expression positions for bytecodes that can throw. This allows more peephole optimization opportunities and results in smaller code. BUG=v8:4280,chromium:615979 LOG=N Review-Url: https://codereview.chromium.org/2038323002 Cr-Commit-Position: refs/heads/master@{#36863}
2016-06-09 13:32:33 +00:00
B(Star), R(1),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 52 S> */ B(Ldar), R(1),
Replace Context::closure with Context::scope_info, allowing closure to die. There are likely cleanups that can be done after this CL: - context-related functions in the interpreter and compiler take ScopeInfo as well as ScopeType and slot-count as input. The latter 2 should be directly derived from the former. We should be able to drop FunctionContextParameters. - ContextExtension is probably not needed anymore, since we now always have the correct scope_info directly in the SCOPE_INFO_INDEX slot. Bug: v8:7066 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67 Reviewed-on: https://chromium-review.googlesource.com/785151 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Hannes Payer <hpayer@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#52952}
2018-05-02 13:57:26 +00:00
B(JumpIfToBooleanFalse), U8(42),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 45 E> */ B(StackCheck),
[interpreter] Add CreateBlockContext bytecode Allows us to create a corresponding TurboFan node, so TF can optimize it. BUG=v8:4280 LOG=n Review-Url: https://codereview.chromium.org/2248633002 Cr-Commit-Position: refs/heads/master@{#38651}
2016-08-16 11:07:21 +00:00
B(CreateBlockContext), U8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(PushContext), R(3),
B(LdaTheHole),
[ignition] Add bytecodes for loads/stores in the current context The majority of context slot accesses are to the local context (current context register and depth 0), so this adds bytecodes to optimise for that case. This cuts down bytecode size by roughly 1% (measured on Octane and Top25). Review-Url: https://codereview.chromium.org/2459513002 Cr-Commit-Position: refs/heads/master@{#40641}
2016-10-28 10:10:32 +00:00
B(StaCurrentContextSlot), U8(4),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
B(CreateClosure), U8(1), U8(0), U8(2),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(Star), R(0),
[ignition] Expect 'I' for signed bytecode operands Because it was confusing seeing U8(negative value). Review-Url: https://codereview.chromium.org/2640273002 Cr-Commit-Position: refs/heads/master@{#42662}
2017-01-25 17:39:24 +00:00
/* 73 S> */ B(LdaSmi), I8(1),
[ignition] Add bytecodes for loads/stores in the current context The majority of context slot accesses are to the local context (current context register and depth 0), so this adds bytecodes to optimise for that case. This cuts down bytecode size by roughly 1% (measured on Octane and Top25). Review-Url: https://codereview.chromium.org/2459513002 Cr-Commit-Position: refs/heads/master@{#40641}
2016-10-28 10:10:32 +00:00
/* 73 E> */ B(StaCurrentContextSlot), U8(4),
Use Variable::binding_needs_init() to determine hole initialization The old code was using VariableMode, but that signal is both over-pessimistic (some CONST and LET variables need no hole-initialization) and inconsistent with other uses of the InitializationFlag enum (such as %LoadLookupSlot). This changes no observable behavior, but removes unnecessary hole initialization and hole checks in a few places, including block-scoped function declarations, super property lookups, and new.target. R=bmeurer@chromium.org, neis@chromium.org Review-Url: https://codereview.chromium.org/2201193004 Cr-Commit-Position: refs/heads/master@{#38395}
2016-08-05 17:50:08 +00:00
B(Mov), R(0), R(2),
[ignition] Add bytecodes for loads/stores in the current context The majority of context slot accesses are to the local context (current context register and depth 0), so this adds bytecodes to optimise for that case. This cuts down bytecode size by roughly 1% (measured on Octane and Top25). Review-Url: https://codereview.chromium.org/2459513002 Cr-Commit-Position: refs/heads/master@{#40641}
2016-10-28 10:10:32 +00:00
/* 106 S> */ B(LdaCurrentContextSlot), U8(4),
[interpreter] Avoid redundant {PopContext} instructions. This avoids emitting redundant {PopContext} bytecode instructions when non-local control-flow leaves the method body. It also folds multiple such {PopContext} instructions into one, in case several scoping levels are crossed at one. Only the expected context of the target of a local control-flow transfer matters. R=rmcilroy@chromium.org TEST=debugger/regress/regress-crbug-724858 BUG=chromium:724858 Change-Id: Id4a47ae9fea25e75ae1af13619720b16a3975edf Reviewed-on: https://chromium-review.googlesource.com/512545 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#45507}
2017-05-24 08:08:21 +00:00
B(JumpIfToBooleanFalse), U8(6),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
/* 113 S> */ B(PopContext), R(3),
[ignition] Add bytecodes for loads/stores in the current context The majority of context slot accesses are to the local context (current context register and depth 0), so this adds bytecodes to optimise for that case. This cuts down bytecode size by roughly 1% (measured on Octane and Top25). Review-Url: https://codereview.chromium.org/2459513002 Cr-Commit-Position: refs/heads/master@{#40641}
2016-10-28 10:10:32 +00:00
B(Jump), U8(10),
/* 126 S> */ B(LdaCurrentContextSlot), U8(4),
[objects] Make feedback vector a first-class object Instead of having feedback vector as a subtype of FixedArray with reserved slots, make it a first-class variable-sized object with a fixed-size header. This allows us to compress counters to ints in the header, rather than forcing them to be Smis. Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Icc5f088ffbc2e2651b845bc71ea42060639e3e48 Reviewed-on: https://chromium-review.googlesource.com/585129 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46935}
2017-07-27 12:45:00 +00:00
B(Inc), U8(1),
[ignition] Add bytecodes for loads/stores in the current context The majority of context slot accesses are to the local context (current context register and depth 0), so this adds bytecodes to optimise for that case. This cuts down bytecode size by roughly 1% (measured on Octane and Top25). Review-Url: https://codereview.chromium.org/2459513002 Cr-Commit-Position: refs/heads/master@{#40641}
2016-10-28 10:10:32 +00:00
/* 127 E> */ B(StaCurrentContextSlot), U8(4),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(PopContext), R(3),
Replace Context::closure with Context::scope_info, allowing closure to die. There are likely cleanups that can be done after this CL: - context-related functions in the interpreter and compiler take ScopeInfo as well as ScopeType and slot-count as input. The latter 2 should be directly derived from the former. We should be able to drop FunctionContextParameters. - ContextExtension is probably not needed anymore, since we now always have the correct scope_info directly in the SCOPE_INFO_INDEX slot. Bug: v8:7066 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67 Reviewed-on: https://chromium-review.googlesource.com/785151 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Hannes Payer <hpayer@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#52952}
2018-05-02 13:57:26 +00:00
B(JumpLoop), U8(41), I8(0),
[interpreter] Add checks for source position to test-bytecode-generator. Prints source position information alongside bytecode. BUG=v8:4280 LOG=N Review-Url: https://codereview.chromium.org/1963663002 Cr-Commit-Position: refs/heads/master@{#36171}
2016-05-11 12:21:56 +00:00
B(LdaUndefined),
/* 137 S> */ B(Return),
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
constant pool: [
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[Interpreter] Remove constant pool type in tests For historical reasons, the interpreter's bytecode expectations tests required a type for the constant pool. This had two disadvantages: 1. Strings and numbers were not visible in mixed pools, and 2. Mismatches of pool types (e.g. when rebaselining) would cause parser errors This removes the pool types, making everything 'mixed', but appending the values to string and number valued constants. Specifying a pool type in the *.golden header now prints a warning (for backwards compatibility). BUG=v8:5350 Review-Url: https://codereview.chromium.org/2310103002 Cr-Commit-Position: refs/heads/master@{#39216}
2016-09-06 16:10:19 +00:00
SHARED_FUNCTION_INFO_TYPE,
[Interpreter] Refactor bytecode generator test suite. Bytecode expectations have been moved to external (.golden) files, one per test. Each test in the suite builds a representation of the the compiled bytecode using BytecodeExpectationsPrinter. The output is then compared to the golden file. If the comparision fails, a textual diff can be used to identify the discrepancies. Only the test snippets are left in the cc file, which also allows to make it more compact and meaningful. Leaving the snippets in the cc file was a deliberate choice to allow keeping the "truth" about the tests in the cc file, which will rarely change, as opposed to golden files. Golden files can be generated and kept up to date using generate-bytecode-expectations, which also means that the test suite can be batch updated whenever the bytecode or golden format changes. The golden format has been slightly amended (no more comments about `void*`, add size of the bytecode array) following the consideration made while converting the tests. There is also a fix: BytecodeExpectationsPrinter::top_level_ was left uninitialized, leading to undefined behaviour. BUG=v8:4280 LOG=N Review URL: https://codereview.chromium.org/1717293002 Cr-Commit-Position: refs/heads/master@{#34285}
2016-02-25 12:07:07 +00:00
]
handlers: [
]
Reference in New Issue Copy Permalink