- 28 Apr, 2020 31 commits
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Victor Gomes authored
Subtracting RSP to allocate stack space is not safe on Windows, where we could subtract several pages away and the value could not be committed yet in memory yielding a segfault. We use the macro assembler AllocateStackSpace instead. Change-Id: I69ac9d96c57af57276b480a33c7cefa81fc018a7 Bug: v8:10201 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2166169 Commit-Queue: Victor Gomes <victorgomes@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#67442}
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Iain Ireland authored
RegExpMacroAssembler::GetCode returns a Handle<Object>. However, that Handle is almost immediately dereferenced, and is stored as a bare Object in both RegExpCompiler::CompilationResult and RegExpCompileData. This makes SpiderMonkey's rooting hazard analysis somewhat antsy. While RegExpCompileData is alive on the stack, the hazard analysis will not allow any calls that might GC, because it isn't smart enough to prove that the code field can't be clobbered by a GC. As far as I can tell, there is no real hazard here, but storing a Handle in RegExpCompileData instead of a bare Object will simplify SM and prevent a future patch from accidentally breaking something. Bug: v8:10406 Change-Id: I9642dd05c591bfd23b340a89df2f2bf5c9fcac2c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2161578Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#67441}
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Dan Elphick authored
When RO_SPACE is to be shared, this constructs SharedReadOnlySpace object (via ReadOnlySpace::DetachPagesAndAddToArtifacts) that contains the shared artifacts and the original ReadOnlySpace is destroyed. This is mostly a conceptual change and SharedReadOnlySpace behaves identically to ReadOnlySpace (and subclasses it). Also adds ReadOnlyArtifacts that contains the shared artifacts and which is stored as a std::weak_ptr in a global so it can be destroyed when all std::shared_ptrs to it are destroyed. Since this allows the ReadOnlyHeap to be reconstructed when all Isolates are destroyed, ReadOnlyHeap::ClearSharedHeapForTest is removed along with all uses since that is now done automatically. The ReadOnlyArtifacts class now owns all the shared artifacts and is responsible for deleting them on exit (mostly via unique_ptr). Bug: v8:10454 Change-Id: I2fe7110a4ab9cf8719dd198bafc1d083bee641b1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154204 Commit-Queue: Dan Elphick <delphick@chromium.org> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67440}
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Leszek Swirski authored
Make sure to set the right page flags on pages merged from off-thread LO space have the right flags set -- in particular, the marking bit. Bug: chromium:1011762 Change-Id: I595a3afb5e40d92b8d4c26c7671a43ea8e9e94d2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169096 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Victor Gomes authored
Change-Id: I4d6ea687d78516d2bac2abc82230e0fe8379d4b9 Bug: v8:10201 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2113378 Commit-Queue: Victor Gomes <victorgomes@chromium.org> Reviewed-by:
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Georg Neis authored
... by making sure we deopt when the buffer is detached. Bug: chromium:1074736 Change-Id: I86e4e63014767766d7c079c3a3e38d947c76ef10 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2168874 Commit-Queue: Georg Neis <neis@chromium.org> Commit-Queue: Michael Stanton <mvstanton@chromium.org> Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by:
Michael Stanton <mvstanton@chromium.org> Cr-Commit-Position: refs/heads/master@{#67437}
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Clemens Backes authored
This reverts commit 6a0e7224. Reason for revert: Fails noi18n: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20noi18n%20-%20debug/31513 Original change's description: > [regexp] Limit the size of inlined choice nodes > > Codegen for unicode property escapes (e.g.: /\p{L}/u) can produce huge > code objects. This effect can be further magnified through inlining, > leading to exponential code growth in the size of the pattern. > > This CL is a (fairly hacky) way to avoid exponential growth. We > recognize choice nodes with 'many' choices and disable inlining for > them. In the future we should fix this properly, either by using the > code size budget correctly, or by improving codegen for property > escapes. > > Bug: v8:10441 > Change-Id: I817f145251ec8b1b9906cc735c9e9bdb004c98ed > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170229 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67433} TBR=yangguo@chromium.org,jgruber@chromium.org Change-Id: I503b8b2be539468d86e4ec1ac13074cd1c06a5cb No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10441 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169101Reviewed-by:
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Tobias Tebbi authored
Bug: v8:10404, v8:7793 Change-Id: I7ed5fc790bd97af0dd3671669779e416101731ce Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2162877 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
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Zhao Jiazhong authored
Port 97a4b795 https://crrev.com/c/2162366 Port f8be9948 https://crrev.com/c/2166959 Change-Id: Id0cebfe0761ff75fb95c9ceacf95e53fee12eb73 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2168978Reviewed-by:
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Jakob Gruber authored
Codegen for unicode property escapes (e.g.: /\p{L}/u) can produce huge code objects. This effect can be further magnified through inlining, leading to exponential code growth in the size of the pattern. This CL is a (fairly hacky) way to avoid exponential growth. We recognize choice nodes with 'many' choices and disable inlining for them. In the future we should fix this properly, either by using the code size budget correctly, or by improving codegen for property escapes. Bug: v8:10441 Change-Id: I817f145251ec8b1b9906cc735c9e9bdb004c98ed Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170229 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#67433}
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Camillo Bruni authored
This enables comparing single runs from the direct command line ouptut generated by --runtime-call-stats No-Try: true No-Presubmit: true Change-Id: Ieac06bbd95c2a73f8064af161fe35f6fb083648f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170093 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#67432}
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Clemens Backes authored
This reverts commit 43b885a8. Reason for revert: Still fails on UBSan: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/10873 Original change's description: > Reland "[turbofan][csa] optimize Smi untagging better" > > This is a reland of ff22ae80 > > Original change's description: > > [turbofan][csa] optimize Smi untagging better > > > > - Introduce new operator variants for signed right-shifts with the > > additional information that they always shift out zeros. > > - Use these new operators for Smi untagging. > > - Merge left-shifts with a preceding Smi-untagging shift. > > - Optimize comparisons of Smi-untagging shifts to operate on the > > unshifted word. > > - Optimize 64bit comparisons of values expanded from 32bit to use > > a 32bit comparison instead. > > - Change CodeStubAssembler::UntagSmi to first sign-extend and then > > right-shift to enable better address computations for Smi indices. > > > > Bug: v8:9962 > > Change-Id: If91300f365e8f01457aebf0bd43bdf88b305c460 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135734 > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org> > > Reviewed-by: Georg Neis <neis@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#67378} > > Bug: v8:9962 > Change-Id: Ieab0755806c95fb50022eb17596fb0c95f36004c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170001 > Commit-Queue: Tobias Tebbi <tebbi@chromium.org> > Commit-Queue: Georg Neis <neis@chromium.org> > Auto-Submit: Tobias Tebbi <tebbi@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67430} TBR=neis@chromium.org,tebbi@chromium.org Change-Id: I49e19811ebcecb846f61291bc0c4a0d8b0bc4cff No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9962 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2168876Reviewed-by:
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Tobias Tebbi authored
This is a reland of ff22ae80 Original change's description: > [turbofan][csa] optimize Smi untagging better > > - Introduce new operator variants for signed right-shifts with the > additional information that they always shift out zeros. > - Use these new operators for Smi untagging. > - Merge left-shifts with a preceding Smi-untagging shift. > - Optimize comparisons of Smi-untagging shifts to operate on the > unshifted word. > - Optimize 64bit comparisons of values expanded from 32bit to use > a 32bit comparison instead. > - Change CodeStubAssembler::UntagSmi to first sign-extend and then > right-shift to enable better address computations for Smi indices. > > Bug: v8:9962 > Change-Id: If91300f365e8f01457aebf0bd43bdf88b305c460 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135734 > Commit-Queue: Tobias Tebbi <tebbi@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67378} Bug: v8:9962 Change-Id: Ieab0755806c95fb50022eb17596fb0c95f36004c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170001 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Auto-Submit: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#67430}
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Jakob Gruber authored
SFI::DisableOptimization can only be called on certain function kinds. Update %NeverOptimizeFunction to crash/do nothing if these conditions are not fulfilled in normal/fuzzing configurations. Bug: chromium:1074689 Change-Id: I371dd539e27447ede48c69d0480a3d224071b304 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169926Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#67429}
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Dominik Inführ authored
Implement move semantics for the LocalAllocationBuffer as noted in the comments. Also moved Close() invocation out of the assignment operator and renamed it to CloseWithFiller(). Bug: v8:10315 Change-Id: Idc36fb7923e1f8857c05ec5d5110fa16087b07e7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170087Reviewed-by:
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Clemens Backes authored
This removes the {RedirectToWasmInterpreter} runtime function and the respective method from {WasmDebugInfo}. Some tests test specifically the interaction between compiled code and the interpreter. They are irrelevant now and are deleted. R=thibaudm@chromium.org Bug: v8:10389 Change-Id: I38330fcb523f7c65968fdf03abc60af3392bdcc8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2164793 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#67427}
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Jakob Gruber authored
This is a reland of ad5b005e Original change's description: > [snapshot] Expose the serializer through %SerializeDeserializeNow > > ... in order to exercise the snapshot/ component from mjsunit tests > and fuzzers. > > * Since the serializer and deserializer can now be called at any time > instead of only in a tightly controlled environment, several > assumptions (such as an empty execution stack, no microtasks, no > handles) no longer hold and had to be made configurable through > SerializerFlags. > > * Root iteration now skips more root categories which were previously > guaranteed to be empty (e.g. the stack, microtask queue, handles). > > * The %SerializeDeserializeNow runtime function triggers > serialization, deserialization, and heap verification on the current > isolate and native context. > > Support is not yet complete and will be extended in future work. Once > all mjsunit tests successfully run, we can add a new test mode to > stress serialization. > > Bug: v8:10416 > Change-Id: Ie7ff441a761257dd7f256d0a33e73227850074ac > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159495 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Dan Elphick <delphick@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67423} Tbr: delphick@chromium.org,ulan@chromium.org Bug: v8:10416 Change-Id: Ibed04c0f0b72fabcf811d8b18a1479391a11568b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170090Reviewed-by:
Dan Elphick <delphick@chromium.org> Reviewed-by:
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Anton Bikineev authored
This adds the following: 1) Heap object structure classes: RawHeap, BaseArena and BasePage. - freelist - linear allocation block 2) ObjectAllocator, a class responsible for object (and page) allocation. The design doc with UML design: https://bit.ly/2VVTcqc User defined arenas are followup. Bug: chromium:1056170 Change-Id: I69a82974bd08e3cf3da90041b1628297cc890891 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2167392 Commit-Queue: Anton Bikineev <bikineev@chromium.org> Reviewed-by:
Omer Katz <omerkatz@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
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Nico Hartmann authored
This reverts commit ad5b005e. Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20shared/36070? Original change's description: > [snapshot] Expose the serializer through %SerializeDeserializeNow > > ... in order to exercise the snapshot/ component from mjsunit tests > and fuzzers. > > * Since the serializer and deserializer can now be called at any time > instead of only in a tightly controlled environment, several > assumptions (such as an empty execution stack, no microtasks, no > handles) no longer hold and had to be made configurable through > SerializerFlags. > > * Root iteration now skips more root categories which were previously > guaranteed to be empty (e.g. the stack, microtask queue, handles). > > * The %SerializeDeserializeNow runtime function triggers > serialization, deserialization, and heap verification on the current > isolate and native context. > > Support is not yet complete and will be extended in future work. Once > all mjsunit tests successfully run, we can add a new test mode to > stress serialization. > > Bug: v8:10416 > Change-Id: Ie7ff441a761257dd7f256d0a33e73227850074ac > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159495 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Dan Elphick <delphick@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67423} TBR=ulan@chromium.org,jgruber@chromium.org,delphick@chromium.org Change-Id: Ie30b94c9ec6e4463bed6cc87dd6525f469fdf84a No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10416 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2170089Reviewed-by:
Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/master@{#67424}
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Jakob Gruber authored
... in order to exercise the snapshot/ component from mjsunit tests and fuzzers. * Since the serializer and deserializer can now be called at any time instead of only in a tightly controlled environment, several assumptions (such as an empty execution stack, no microtasks, no handles) no longer hold and had to be made configurable through SerializerFlags. * Root iteration now skips more root categories which were previously guaranteed to be empty (e.g. the stack, microtask queue, handles). * The %SerializeDeserializeNow runtime function triggers serialization, deserialization, and heap verification on the current isolate and native context. Support is not yet complete and will be extended in future work. Once all mjsunit tests successfully run, we can add a new test mode to stress serialization. Bug: v8:10416 Change-Id: Ie7ff441a761257dd7f256d0a33e73227850074ac Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159495 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
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Ulan Degenbaev authored
Upon receiving a memory pressure signal V8 performs one GC and also schedules three follow-up GCs. This may be problematic for performance if the memory pressure signals are generated periodically. This patch makes V8's memory pressure handler more lightweight by doing only one GC. Bug: chromium:1072746 Change-Id: I242534bd2c27a68188bb5e3a6b4092118c1b486c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169930Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67422}
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Jakob Gruber authored
The blink use counter callback requires a current native context to exist, and will crash if that is not the case. We can fix this V8 by deferring the count. A cleaner (future) fix would be to either pass the native context to the callback, or remove the requirement in blink. Bug: v8:9496,v8:10460 Change-Id: I8832d02088ba422c3a27638cee4dacbaaf6f39b4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2167394Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#67421}
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Anna Henningsen authored
For a zero-length BackingStore allocation, it is valid for the underlying memory to be a null pointer. However, some cleanup is still necessary, since the BackingStore may hold a reference to the allocator itself, which needs to be released when destroying the `BackingStore` instance. Change-Id: I1f168079d39e4592d2fde31fbe5f705586690e85 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169646Reviewed-by:
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Clemens Backes authored
The interpreter will be moved to be test-only, hence --wasm-interpret-all also needs to be removed. Since we don't have any non-compiling tier any more, we also remove the implication from --jitless to --wasm-lazy-compilation. Instead, we add another CHECK that we can't be in jitless mode if we trigger any wasm compilation. All tests that just ran other tests and additionally passed --wasm-interpret-all become redundant and are deleted. Also all regression tests that explicitly specify --wasm-interpret-all are not needed any more. R=thibaudm@chromium.org Bug: v8:10389 Change-Id: I5ddf20a842117a6c05e277a5308f5cfe42e6bfa5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2164792 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Clemens Backes authored
This CL removes all debugging capabilities from the API provided by WasmDebugInfo: - setting and removing breakpoints - stepping - stack inspection The WasmDebugInfo is still kept, since it's used from tests to instantiate the interpreter. R=thibaudm@chromium.org, bmeurer@chromium.org Bug: v8:10389 Change-Id: I297bfc8df2104dae8b9f9f9b13078026c47698da Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2164791Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#67418}
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Shu-yu Guo authored
Bug: v8:8179, chromium:1074621 Change-Id: I26e2e2cef7ae2b1e43526c4cfc2592cc0f6d688f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2169412 Auto-Submit: Shu-yu Guo <syg@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
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Marja Hölttä authored
PerformPromiseAll doesn't set iteratorRecord.[[Done]] to true if Promise.resolve is not callable. This makes Promise.all call IteratorClose. BUG=v8:10452 Change-Id: Icbe17416a733f68ef09f1c610d715f544c2a3b8a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2164789Reviewed-by:
Shu-yu Guo <syg@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#67416}
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Jakob Gruber authored
This reverts the changes made in https://chromium-review.googlesource.com/c/v8/v8/+/1695465 https://chromium-review.googlesource.com/c/v8/v8/+/1776078 We originally moved this protector to the native context to avoid cross-native-context pollution of protector state. Ideally, invalidating a protector in one NC should not affect any other NC. But as it turns out, having the protector on the NC causes more problems than it solves since all affected callers now need to find the correct native context to check. Sometimes (e.g. in CSA regexp builtins) it is possible to blindly check the current NC, but the reasoning behind this optimization is tricky to understand. Sometimes, fetching the correct NC is not possible due to access restrictions. These implementation complexities outweigh the (unknown) potential performance benefits. In the future we should attempt to move away from the protector concept for these kinds of checks. Bug: chromium:1069964,v8:9463 Change-Id: I2cbb2ec7266282165dae5e4a6c8bdbda520c50a9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157382Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#67415}
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Kong, Fanchen authored
Bug: v8:9909 Change-Id: Ic6c26558c58630f0600ddf82e973d97f5414792b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2166959Reviewed-by:
Zhi An Ng <zhin@chromium.org> Commit-Queue: Fanchen Kong <fanchen.kong@intel.com> Cr-Commit-Position: refs/heads/master@{#67414}
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Zhao Jiazhong authored
Due to lack of testing environment before, there are some bugs in the implementations of wasm-simd on mips64 platform, this CL fix them according to the test on Loongson 3A4000. Change-Id: I59ab6315987fc94a06cf0bf23754f5c593879532 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2162416 Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Reviewed-by:
Deepti Gandluri <gdeepti@chromium.org> Cr-Commit-Position: refs/heads/master@{#67413}
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Paolo Severini authored
This changelist makes the GDB-stub actually execute GDB-remote commands, by accessing the Wasm engine state. More precisely: - class GdbServer registers DebugDelegates that receive debug notifications when a new Wasm module is loaded, when execution suspends at a breakpoint or for an unhandled exception. - Since the GDB-remote commands arrive on a separate thread, all queries from the debugger are transformed into Task objects, that are posted into a TaskRunner that runs in the Isolate thread. - class WasmModuleDebug contains the logic to retrieve the value of globals, locals, memory ranges from the Wasm engine and to add/remove breakpoints. Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Test with: python tools\run-tests.py --outdir=out\debug_x64 debugging -j 1 Bug: chromium:1010467 Change-Id: I9703894620a027d3c920926db92e2ff809d84ab8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1941139Reviewed-by:
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- 27 Apr, 2020 9 commits
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Zhou, Zhiguo authored
Bug: v8:9909 Change-Id: I066621f12ce594280f6f43bc526988e55729eefa Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2162366Reviewed-by:
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Milad Farazmand authored
Port ab547021 Original Commit Message: - Adds kFPReturnRegister0 for all platforms. - Reworks linkage.cc to assign return registers to the proper register type, using the new FP return register. R=bbudge@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: I549f408ff1d0eed604c7bd38518f31dadb5d01f6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2168356Reviewed-by:
Junliang Yan <jyan@ca.ibm.com> Reviewed-by:
Bill Budge <bbudge@chromium.org> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#67410}
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Ulan Degenbaev authored
This is a reland of 7ae30cb7 Original change's description: > [heap] Skip memory reducer on AdjustAmountOfExternalAllocateMemory > > V8 performs GC based on external memory limit. Additionally triggering > memory reducing GCs may be problematic for large heaps and increases > the chances of multiple V8 isolates performing GCs after > IsolateInBackgroundNotification. > > Bug: chromium:1072746 > > Change-Id: I7649a176504803ba666e6367b008593bbcfe6312 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159488 > Commit-Queue: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67398} Bug: chromium:1072746 Tbr: mlippautz@chromium.org,hpayer@chromium.org Change-Id: Ieccd77c868a8b5d5613e6c4b7e70fdb4bcff3044 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2165763Reviewed-by:
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Georg Neis authored
Extend the flag parameter with a bit that decides if the input should be converted (-0 to 0, and a string to the array index it represents). Instruct redundancy elimination to never replace x with CheckBounds(x) when this CheckBounds is of the converting kind. Bug: chromium:1070892, chromium:1071743 Change-Id: I3125a6e267d56dae6bf6cb2f5f52d27ef65d7c79 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157365 Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
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Ng Zhi An authored
Bug: v8:9909 Change-Id: I4bb2250125a1686295460813979196175c43c3b6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2165874 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by:
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Ng Zhi An authored
This relands commit 1a38573f. The original change used a sequence of instruction in the test that could not be scalar lowered properly. Original change's description: > [arm] Change fp_fixed registers to be allocatable registers > > fp_fixed1 and fp_fixed2 are used by the S8x16Shuffle operation. They > need to be allocatable, so that they can be correctly marked as fixed > and spilled as required. The previous value of fp_fixed2, d29, is not in > the list of allocatable double registers, and not marked as fixed > appropriately. > > One fix could be to extend the list of allocatable double registers, but > there is a comment there saying that the list is kept even-length to > make stack alignment easier. So rather than messing with that, we > instead change what fp_fixed1 and fp_fixed2 is, since S8x16Shuffle is > the only user, this is a simpler change. > > Bug: chromium:1070078 > Change-Id: Id7de9b256bad2cfb11b0f06b66eb80a48ff7827c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2161565 > Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org> > Commit-Queue: Zhi An Ng <zhin@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67372} Bug: chromium:1070078 Change-Id: I02bb4b3ad03817318cbd0ee706c5ef4f20c845ba Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2165867Reviewed-by:
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Sathya Gunasekaran authored
This patch has the following improvement on v8.browsing_mobile: - total-main-thread:duration improved by 1.7% - js:duration improved by 1.3% Change-Id: I1cdf2c181bfd991b67f31c5c2f32e3c2f909c67e Bug: v8:9684, v8:10431 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2149433 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
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Clemens Backes authored
Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/2b2aec6..dd2f620 The roller is blocked since a few weeks, but we need this roll now to fix a depot_tools version mismatch between the presubmit bots on CQ and on the waterfall. R=zhin@chromium.org TBR=machenbach@chromium.org,tmrts@chromium.org NOTREECHECKS=true Bug: chromium:1075618 Change-Id: Ib3e4b2ad4d79a1b35db1b320c7f7aa682b1eab90 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2166198 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#67404}
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Clemens Backes authored
The category name changed in https://crrev.com/c/2159690 (in depot_tools), hence presubmit tests start failing whenever someone touches a file which still refers to the old category. R=zhin@chromium.org TBR=machenbach@chromium.org No-Try: true No-Tree-Checks: true Change-Id: I62813a42d63e512d421c4fe94229d04a56056978 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2165760Reviewed-by:
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