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v8/test/cctest/interpreter/bytecode_expectations/CallGlobal.golden

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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: no
test function name: f
---
snippet: "
function t() { }
function f() { return t(); }
f();
"
Reland: [ignition] Add call bytecodes for undefined receiver Adds a collection of call bytecodes which have an implicit undefined receiver argument, for cases such as global calls where we know that the receiver has to be undefined. This way we can skip an LdaUndefined, decrease bytecode register pressure, and set a more accurate ConvertReceiverMode on the interpreter and TurboFan call. As a side effect, the "normal" Call bytecode now becomes a rare case (only with calls and super property calls), so we get rid of its 0-2 argument special cases and modify CallProperty[N] to use the NotNullOrUndefined ConvertReceiverMode. Reland of https://chromium-review.googlesource.com/c/463287 after fixing tests in https://codereview.chromium.org/2813873002. Change-Id: I314d69c7643ceec6a5750ffdab60dad38dad09e5 Reviewed-on: https://chromium-review.googlesource.com/474752 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#44582}
2017-04-11 14:20:30 +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
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
bytecode array length: 9
[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: [
[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
/* 32 S> */ B(LdaGlobal), U8(0), U8(0),
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
B(Star), 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
/* 39 E> */ B(CallUndefinedReceiver0), R(0), U8(2),
[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
/* 43 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: [
[ic] Pass name to LoadGlobalIC again. The reasons are: 1) The names dictionaries in the feedback metadata seems to consume a lot of memory and the idea didn't payoff. 2) The absence of a name parameter blocks data handlers support in LoadGlobalIC. This CL reverts a part of r37278 (https://codereview.chromium.org/2096653003/). BUG=chromium:576312, v8:5561 Review-Url: https://codereview.chromium.org/2510653002 Cr-Commit-Position: refs/heads/master@{#41046}
2016-11-16 18:17:22 +00:00
ONE_BYTE_INTERNALIZED_STRING_TYPE ["t"],
[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: [
]
---
snippet: "
function t(a, b, c) { }
function f() { return t(1, 2, 3); }
f();
"
Reland: [ignition] Add call bytecodes for undefined receiver Adds a collection of call bytecodes which have an implicit undefined receiver argument, for cases such as global calls where we know that the receiver has to be undefined. This way we can skip an LdaUndefined, decrease bytecode register pressure, and set a more accurate ConvertReceiverMode on the interpreter and TurboFan call. As a side effect, the "normal" Call bytecode now becomes a rare case (only with calls and super property calls), so we get rid of its 0-2 argument special cases and modify CallProperty[N] to use the NotNullOrUndefined ConvertReceiverMode. Reland of https://chromium-review.googlesource.com/c/463287 after fixing tests in https://codereview.chromium.org/2813873002. Change-Id: I314d69c7643ceec6a5750ffdab60dad38dad09e5 Reviewed-on: https://chromium-review.googlesource.com/474752 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#44582}
2017-04-11 14:20:30 +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
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
bytecode array length: 23
[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: [
[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
/* 39 S> */ B(LdaGlobal), U8(0), U8(0),
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +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
B(LdaSmi), I8(1),
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
B(Star), R(1),
Revert "[ignition] Add call bytecodes for undefined receiver" This reverts commit 751e89359123df4f6e5f0b28b89fcdf63ed16a77. Reason for revert: Breaks layout tests: https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/14885 See: https://github.com/v8/v8/wiki/Blink-layout-tests Original change's description: > [ignition] Add call bytecodes for undefined receiver > > Adds a collection of call bytecodes which have an implicit undefined > receiver argument, for cases such as global calls where we know that the > receiver has to be undefined. This way we can skip an LdaUndefined, > decrease bytecode register pressure, and set a more accurate > ConvertReceiverMode on the interpreter and TurboFan call. > > As a side effect, the "normal" Call bytecode now becomes a rare case > (only with calls and super property calls), so we get rid of its 0-2 > argument special cases and modify CallProperty[N] to use the > NotNullOrUndefined ConvertReceiverMode. > > Change-Id: I9374a32fefd66fc0251b5193bae7a6b7dc31eefc > Reviewed-on: https://chromium-review.googlesource.com/463287 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44530} TBR=rmcilroy@chromium.org,mstarzinger@chromium.org,leszeks@chromium.org,v8-reviews@googlegroups.com,v8-mips-ports@googlegroups.com,v8-ppc-ports@googlegroups.com,v8-x87-ports@googlegroups.com,bmeurer@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Change-Id: I7629dec609d0ec938ce7105d6c1c74884e5f9272 Reviewed-on: https://chromium-review.googlesource.com/474744 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#44548}
2017-04-11 06:26:10 +00:00
B(LdaSmi), I8(2),
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
B(Star), R(2),
Revert "[ignition] Add call bytecodes for undefined receiver" This reverts commit 751e89359123df4f6e5f0b28b89fcdf63ed16a77. Reason for revert: Breaks layout tests: https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/14885 See: https://github.com/v8/v8/wiki/Blink-layout-tests Original change's description: > [ignition] Add call bytecodes for undefined receiver > > Adds a collection of call bytecodes which have an implicit undefined > receiver argument, for cases such as global calls where we know that the > receiver has to be undefined. This way we can skip an LdaUndefined, > decrease bytecode register pressure, and set a more accurate > ConvertReceiverMode on the interpreter and TurboFan call. > > As a side effect, the "normal" Call bytecode now becomes a rare case > (only with calls and super property calls), so we get rid of its 0-2 > argument special cases and modify CallProperty[N] to use the > NotNullOrUndefined ConvertReceiverMode. > > Change-Id: I9374a32fefd66fc0251b5193bae7a6b7dc31eefc > Reviewed-on: https://chromium-review.googlesource.com/463287 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Cr-Commit-Position: refs/heads/master@{#44530} TBR=rmcilroy@chromium.org,mstarzinger@chromium.org,leszeks@chromium.org,v8-reviews@googlegroups.com,v8-mips-ports@googlegroups.com,v8-ppc-ports@googlegroups.com,v8-x87-ports@googlegroups.com,bmeurer@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Change-Id: I7629dec609d0ec938ce7105d6c1c74884e5f9272 Reviewed-on: https://chromium-review.googlesource.com/474744 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#44548}
2017-04-11 06:26:10 +00:00
B(LdaSmi), I8(3),
Revert "[interpreter] Short Star bytecode" This reverts commit cf93071c91a932996a4df2e2d8880aca3cffbe28. Reason for revert: Speculative revert because of Mac4 GC stress failure: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/16697/overview Original change's description: > [interpreter] Short Star bytecode > > Design doc: > https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit > > This change adds 16 new interpreter opcodes, kStar0 through kStar15, so > that we can use a single byte to represent the common operation of > storing to a low-numbered register. This generally reduces the quantity > of bytecode generated on web sites by 8-9%. > > In order to not degrade speed, a couple of other changes are required: > > The existing lookahead logic to check for Star after certain other > bytecode handlers is updated to check for these new short Star codes > instead. Furthermore, that lookahead logic is updated to contain its own > copy of the dispatch jump rather than merging control flow with the > lookahead-failed case, to improve branch prediction. > > A bunch of constants use bytecode size in bytes as a proxy for the size > or complexity of a function, and are adjusted downward proportionally to > the decrease in generated bytecode size. > > Other small drive-by fix: update generate-bytecode-expectations to emit > \n instead of \r\n on Windows. > > Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180 > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72773} TBR=rmcilroy@chromium.org,mythria@chromium.org,seth.brenith@microsoft.com Change-Id: I0162b9400861b90bacef27cca9aebc8ab9d74c10 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697350 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72777}
2021-02-16 15:49:56 +00:00
B(Star), R(3),
[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
/* 46 E> */ B(CallUndefinedReceiver), R(0), R(1), U8(3), U8(2),
[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
/* 57 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: [
[ic] Pass name to LoadGlobalIC again. The reasons are: 1) The names dictionaries in the feedback metadata seems to consume a lot of memory and the idea didn't payoff. 2) The absence of a name parameter blocks data handlers support in LoadGlobalIC. This CL reverts a part of r37278 (https://codereview.chromium.org/2096653003/). BUG=chromium:576312, v8:5561 Review-Url: https://codereview.chromium.org/2510653002 Cr-Commit-Position: refs/heads/master@{#41046}
2016-11-16 18:17:22 +00:00
ONE_BYTE_INTERNALIZED_STRING_TYPE ["t"],
[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: [
]
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