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v8/test/cctest/interpreter/bytecode_expectations/DeclareGlobals.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
top level: yes
---
snippet: "
var a = 1;
"
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
frame size: 3
[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
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
bytecode array length: 18
[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
B(LdaConstant), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star1),
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
B(Mov), R(closure), R(2),
[interpreter] Make FunctionEntry StackCheck bytecodes implicit FunctionEntry StackChecks is one of the two cases where we generate a StackCheck bytecode. In these cases, we do stack check against the js limit (not to be confused with the real js limit). Their purpose is to be able to interrupt the running code. We can omit the FunctionEntry StackCheck by embedding its code into the InterpreterEntryTrampoline builtin. We save one bytecode per interpreted function. This change has rippling effects for optimized code, as well as the deoptimizer. Bug: v8:10149, v8:9977, v8:9960 Change-Id: I6156de48b3bc0b519dd21190a8e6214fbe96c78d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1914218 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#66206}
2020-02-10 16:09:27 +00:00
/* 0 E> */ B(CallRuntime), U16(Runtime::kDeclareGlobals), R(1), U8(2),
[parsing/runtime] Remove InitializeVarGlobal Change-Id: I2ee0ff9db1bbc8c17a1ad3dea1de1ad996895852 Reviewed-on: https://chromium-review.googlesource.com/474807 Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#46338}
2017-06-29 12:10:41 +00:00
/* 8 S> */ B(LdaSmi), I8(1),
[interpreter/runtime] Simplify how global declarations are processed This makes the code a little more specific to what's happening: There is only 1 global scope, and if there is one, we know its declarations are info->scope()->declarations(). That means we don't need multiple GlobalDeclarationsBuilders, and we don't need to cache partially serialized versions of the declarations. One builder is enough, and we can simply walk those declarations if there are any. Additionally this CL drops unnecessary information passed into DeclareGlobals: - Global functions always have the name on the shared function info, so we can drop the name. - Due to lazy feedback vectors there's no point in trying to preinitialize global loads. Also this was only preinitializing global loads at the script level, not sub functions; without even checking whether the global load was used. It may actually have caused us to do more work and allocate more global load feedback slots than neccessary. Change-Id: Ibbdd029abe5a39ba27f7fc9be84670c5d444d98d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997123 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65725}
2020-01-13 11:57:24 +00:00
/* 8 E> */ B(StaGlobal), U8(1), 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(LdaUndefined),
Reland "[inspector] fixed location of top level function return" This is a reland of 4363a693352e75a919cf4524d1b3b17b204571c0 Original change's description: > [inspector] fixed location of top level function return > > We should pass false as has_braces argument to create FunctionLiteral > for top level function. > > R=dgozman@chromium.org,bmeurer@chromium.org > TBR=bmeurer@chromium.org > > Bug: none > Change-Id: I397f31b562d32c71f3a12bfc9ceeed16c367aa80 > Reviewed-on: https://chromium-review.googlesource.com/1098018 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Dmitry Gozman <dgozman@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53769} TBR=dgozman@chromium.org Bug: v8:7858 Change-Id: Ie636bc101f9d29d9d40bd10b96e62da6505c2734 Reviewed-on: https://chromium-review.googlesource.com/1104497 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#53808}
2018-06-12 21:57:52 +00:00
/* 11 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: [
[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
FIXED_ARRAY_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["a"],
[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 f() {}
"
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +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
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
bytecode array length: 13
[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
B(LdaConstant), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star0),
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
B(Mov), R(closure), R(1),
[interpreter] Make FunctionEntry StackCheck bytecodes implicit FunctionEntry StackChecks is one of the two cases where we generate a StackCheck bytecode. In these cases, we do stack check against the js limit (not to be confused with the real js limit). Their purpose is to be able to interrupt the running code. We can omit the FunctionEntry StackCheck by embedding its code into the InterpreterEntryTrampoline builtin. We save one bytecode per interpreted function. This change has rippling effects for optimized code, as well as the deoptimizer. Bug: v8:10149, v8:9977, v8:9960 Change-Id: I6156de48b3bc0b519dd21190a8e6214fbe96c78d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1914218 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#66206}
2020-02-10 16:09:27 +00:00
/* 0 E> */ B(CallRuntime), U16(Runtime::kDeclareGlobals), 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(LdaUndefined),
Reland "[inspector] fixed location of top level function return" This is a reland of 4363a693352e75a919cf4524d1b3b17b204571c0 Original change's description: > [inspector] fixed location of top level function return > > We should pass false as has_braces argument to create FunctionLiteral > for top level function. > > R=dgozman@chromium.org,bmeurer@chromium.org > TBR=bmeurer@chromium.org > > Bug: none > Change-Id: I397f31b562d32c71f3a12bfc9ceeed16c367aa80 > Reviewed-on: https://chromium-review.googlesource.com/1098018 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Dmitry Gozman <dgozman@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53769} TBR=dgozman@chromium.org Bug: v8:7858 Change-Id: Ie636bc101f9d29d9d40bd10b96e62da6505c2734 Reviewed-on: https://chromium-review.googlesource.com/1104497 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#53808}
2018-06-12 21:57:52 +00:00
/* 16 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: [
[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
FIXED_ARRAY_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: [
]
---
snippet: "
var a = 1;
a=2;
"
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
frame size: 3
[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
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +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: [
[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(LdaConstant), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star1),
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
B(Mov), R(closure), R(2),
[interpreter] Make FunctionEntry StackCheck bytecodes implicit FunctionEntry StackChecks is one of the two cases where we generate a StackCheck bytecode. In these cases, we do stack check against the js limit (not to be confused with the real js limit). Their purpose is to be able to interrupt the running code. We can omit the FunctionEntry StackCheck by embedding its code into the InterpreterEntryTrampoline builtin. We save one bytecode per interpreted function. This change has rippling effects for optimized code, as well as the deoptimizer. Bug: v8:10149, v8:9977, v8:9960 Change-Id: I6156de48b3bc0b519dd21190a8e6214fbe96c78d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1914218 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#66206}
2020-02-10 16:09:27 +00:00
/* 0 E> */ B(CallRuntime), U16(Runtime::kDeclareGlobals), R(1), U8(2),
[parsing/runtime] Remove InitializeVarGlobal Change-Id: I2ee0ff9db1bbc8c17a1ad3dea1de1ad996895852 Reviewed-on: https://chromium-review.googlesource.com/474807 Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#46338}
2017-06-29 12:10:41 +00:00
/* 8 S> */ B(LdaSmi), I8(1),
[interpreter/runtime] Simplify how global declarations are processed This makes the code a little more specific to what's happening: There is only 1 global scope, and if there is one, we know its declarations are info->scope()->declarations(). That means we don't need multiple GlobalDeclarationsBuilders, and we don't need to cache partially serialized versions of the declarations. One builder is enough, and we can simply walk those declarations if there are any. Additionally this CL drops unnecessary information passed into DeclareGlobals: - Global functions always have the name on the shared function info, so we can drop the name. - Due to lazy feedback vectors there's no point in trying to preinitialize global loads. Also this was only preinitializing global loads at the script level, not sub functions; without even checking whether the global load was used. It may actually have caused us to do more work and allocate more global load feedback slots than neccessary. Change-Id: Ibbdd029abe5a39ba27f7fc9be84670c5d444d98d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997123 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65725}
2020-01-13 11:57:24 +00:00
/* 8 E> */ B(StaGlobal), U8(1), U8(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
/* 11 S> */ B(LdaSmi), I8(2),
[interpreter/runtime] Simplify how global declarations are processed This makes the code a little more specific to what's happening: There is only 1 global scope, and if there is one, we know its declarations are info->scope()->declarations(). That means we don't need multiple GlobalDeclarationsBuilders, and we don't need to cache partially serialized versions of the declarations. One builder is enough, and we can simply walk those declarations if there are any. Additionally this CL drops unnecessary information passed into DeclareGlobals: - Global functions always have the name on the shared function info, so we can drop the name. - Due to lazy feedback vectors there's no point in trying to preinitialize global loads. Also this was only preinitializing global loads at the script level, not sub functions; without even checking whether the global load was used. It may actually have caused us to do more work and allocate more global load feedback slots than neccessary. Change-Id: Ibbdd029abe5a39ba27f7fc9be84670c5d444d98d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997123 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65725}
2020-01-13 11:57:24 +00:00
/* 12 E> */ B(StaGlobal), U8(1), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star0),
Reland "[inspector] fixed location of top level function return" This is a reland of 4363a693352e75a919cf4524d1b3b17b204571c0 Original change's description: > [inspector] fixed location of top level function return > > We should pass false as has_braces argument to create FunctionLiteral > for top level function. > > R=dgozman@chromium.org,bmeurer@chromium.org > TBR=bmeurer@chromium.org > > Bug: none > Change-Id: I397f31b562d32c71f3a12bfc9ceeed16c367aa80 > Reviewed-on: https://chromium-review.googlesource.com/1098018 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Dmitry Gozman <dgozman@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53769} TBR=dgozman@chromium.org Bug: v8:7858 Change-Id: Ie636bc101f9d29d9d40bd10b96e62da6505c2734 Reviewed-on: https://chromium-review.googlesource.com/1104497 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#53808}
2018-06-12 21:57:52 +00:00
/* 16 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: [
[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
FIXED_ARRAY_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["a"],
[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 f() {}
f();
"
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
frame size: 3
[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
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
bytecode array length: 20
[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
B(LdaConstant), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star1),
[runtime] Derive is_eval from Script::CompilationType in DeclareGlobals Change-Id: I34aff1cef476a1237e59e8151b82bdb09819664f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997126 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65728}
2020-01-13 11:59:15 +00:00
B(Mov), R(closure), R(2),
[interpreter] Make FunctionEntry StackCheck bytecodes implicit FunctionEntry StackChecks is one of the two cases where we generate a StackCheck bytecode. In these cases, we do stack check against the js limit (not to be confused with the real js limit). Their purpose is to be able to interrupt the running code. We can omit the FunctionEntry StackCheck by embedding its code into the InterpreterEntryTrampoline builtin. We save one bytecode per interpreted function. This change has rippling effects for optimized code, as well as the deoptimizer. Bug: v8:10149, v8:9977, v8:9960 Change-Id: I6156de48b3bc0b519dd21190a8e6214fbe96c78d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1914218 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#66206}
2020-02-10 16:09:27 +00:00
/* 0 E> */ B(CallRuntime), U16(Runtime::kDeclareGlobals), R(1), U8(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
/* 16 S> */ B(LdaGlobal), U8(1), U8(0),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star1),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
/* 16 E> */ B(CallUndefinedReceiver0), R(1), U8(2),
Reland "[interpreter] Short Star bytecode" This is a reland of cf93071c91a932996a4df2e2d8880aca3cffbe28 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} Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 14:36:58 +00:00
B(Star0),
Reland "[inspector] fixed location of top level function return" This is a reland of 4363a693352e75a919cf4524d1b3b17b204571c0 Original change's description: > [inspector] fixed location of top level function return > > We should pass false as has_braces argument to create FunctionLiteral > for top level function. > > R=dgozman@chromium.org,bmeurer@chromium.org > TBR=bmeurer@chromium.org > > Bug: none > Change-Id: I397f31b562d32c71f3a12bfc9ceeed16c367aa80 > Reviewed-on: https://chromium-review.googlesource.com/1098018 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Dmitry Gozman <dgozman@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53769} TBR=dgozman@chromium.org Bug: v8:7858 Change-Id: Ie636bc101f9d29d9d40bd10b96e62da6505c2734 Reviewed-on: https://chromium-review.googlesource.com/1104497 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#53808}
2018-06-12 21:57:52 +00:00
/* 21 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: [
[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
FIXED_ARRAY_TYPE,
[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 ["f"],
[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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