- 03 Aug, 2020 9 commits
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Ross McIlroy authored
Adds support for non-simple fp aliasing (e.g., Arm) for the fast register allocator. BUG=v8:9684 Change-Id: I6717ef1c6cb4e585fa4b6ea8cea7087e68f441e9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2300483 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#69198}
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Jakob Gruber authored
A stricter V8-side check to flush out the linked bug. Bug: v8:10460 Change-Id: I20a0026e35719632e90f0a00bc49eb27d81b273b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2335061 Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#69197}
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Tobias Tebbi authored
Change-Id: Id545ca00106fb54ee08078177ad7f24842752afe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332799Reviewed-by:
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Dominik Inführ authored
Allow the allocation of large old space objects through LocalHeap::AllocateRaw. OldLargeObjectSpace::AllocateRawBackground will allocate a large object on the background thread. Bug: v8:10315 Change-Id: I9212f0c6770855dbe33490516aae7056987e192d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332804 Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#69195}
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Omer Katz authored
reinterpret_cast to std::atomic was missing const. Bug: chromium:1108537 Change-Id: Ib737418bddbef6774deafa9714b0efcf2e3fd07c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332797 Auto-Submit: Omer Katz <omerkatz@chromium.org> Reviewed-by:
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Dominik Inführ authored
LocalHeap::AllocateRaw will be similar to Heap::AllocateRaw and handle all allocations. LocalHeap::AllocateRawOrFail will perform a GC and afterwards retry the allocation in a loop. Bug: v8:10315 Change-Id: I68468962cf9102697aa547b2aa05c7ec6bafd19e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332801Reviewed-by:
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Dominik Inführ authored
Bug: v8:10315 Change-Id: Ic0ccaa608c9b11258e6923919d3e72d23cedc5c2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2333249Reviewed-by:
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Santiago Aboy Solanes authored
Bug: v8:7790 Change-Id: Ie296b0bcc6c3b26be5ad54f4558a75250a2f2157 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332232 Auto-Submit: Santiago Aboy Solanes <solanes@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by:
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/17f3b1c..7c2575f Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/2cd291a..f80ffe3 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/b63a569..1078c41 TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com Change-Id: I17dbc645ac8c8463a4468589277ab4203a5e9279 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2331870Reviewed-by:
v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#69190}
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- 02 Aug, 2020 1 commit
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/7f53cfc..17f3b1c Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/fd3758a..b63a569 TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com Change-Id: I7b38ec37acb0cd78f06f714b814072ebf68b63e3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2331868Reviewed-by:
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- 01 Aug, 2020 4 commits
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Ulan Degenbaev authored
Chrome is currently adding a 128-bit V8ContextToken to keep track of V8 contexts across multiple isolates and processes. Having per-isolate token exposed by V8 leads to confusion of these two tokens. This moves v8::Context::Token to v8::metrics::Recorder and changes the corresponding functions: - v8::Context::GetToken => v8::metrics::Recorder::GetContextId - v8::Context::GetByToken => v8::metrics::Recorder::GetContext This CL is purely mechanical and does not change the behaviour. Bug: chromium:1101749 Tbr: clemensb@chromium.org Change-Id: I31bbfa02ebab1c0d91b00f0d08c1b236392d14d2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330023 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Emanuel Ziegler <ecmziegler@chromium.org> Cr-Commit-Position: refs/heads/master@{#69188}
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Dominik Inführ authored
This reverts commit b354e344. Reason for revert: Clusterfuzz found issues with this CL. Original change's description: > [heap] Refactor allocation observer in AllocationCounter > > Moves accounting of allocation observers into the AllocationCounter > class. This CL removes top_on_previous_step_ for counters that are > increased regularly in the slow path of the allocation functions. > > AdvanceAllocationObservers() informs the AllocationCounter about > allocated bytes, InvokeAllocationObservers() needs to be invoked when > an allocation step is reached. NextBytes() returns the number of bytes > until the next AllocationObserver::Step needs to run. > > Bug: v8:10315 > Change-Id: I8b6eb8719ab032d44ee0614d2a0f2645bfce9df6 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2320650 > Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#69170} TBR=ulan@chromium.org,dinfuehr@chromium.org Change-Id: Icd713207bfb2085421fd82009be24a0211ae86da No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10315 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332667Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Cr-Commit-Position: refs/heads/master@{#69187}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/65e3fac..7f53cfc TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com Change-Id: I934b4eebcf58727531022998657954b718899b99 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2333182Reviewed-by:
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Frank Tang authored
Implement https://github.com/tc39/ecma402/pull/487 Also improve test/intl/toStringTag.js see also: https://github.com/tc39/test262/pull/2712 Bug: v8:10744 Change-Id: I678876aa21f169a8dfcec8e3ce974978a8847fe0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2315455Reviewed-by:
Shu-yu Guo <syg@chromium.org> Commit-Queue: Frank Tang <ftang@chromium.org> Cr-Commit-Position: refs/heads/master@{#69185}
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- 31 Jul, 2020 26 commits
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/f0fc706..65e3fac Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/9e12121..42e9461 Rolling v8/third_party/aemu-linux-x64: nz3cLclK4lWm6gzvGCOHPQAKJUO8EsMBr7EIUXwS9SEC..TfK3Whl6AfZifLOotcOS_jvckKztERlPvmVyZo16fN0C Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/d292e89..2cd291a Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/a58287b..98b332f Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/103247f..a21a4e8 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/2eaa59d..fd3758a TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com Change-Id: I218e41dfe1026a7851ed4e0a3ac7fbe924f4f9cb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2333174Reviewed-by:
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Ng Zhi An authored
Also add some simple unittests for these functions. Bug: v8:10696 Change-Id: Ic7607780b4eaf275b20d0937bf214846bf51d539 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330806Reviewed-by:
Bill Budge <bbudge@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#69183}
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Almothana Athamneh authored
This CL also includes changes from https://chromium.googlesource.com/chromium/src/build/+log/483d96..f0fc706 Bug: chromium:1111223 Change-Id: I8ee1297eae93050d7ef615f01b388de982c88014 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2328790Reviewed-by:
Liviu Rau <liviurau@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#69182}
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Ross McIlroy authored
Adds support for tracking register allocations across basic block boundaries to the fast register allocator. For now we still spill on loop headers, and spill when merging register states if the register state isn't exactly the same. BUG=v8:9684 Change-Id: I2aaf992fe8b0a5c698b1e44526951c63aedbe86c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2300480 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#69181}
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Ng Zhi An authored
Some of these functions will be reused by Liftoff. Move them into simd-shuffle for sharing (even though these only apply to ia32 and x64). Bug: v8:10696 Change-Id: Ib83a2fcd443f93f86d7a4c85898205edb8c3925c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330796Reviewed-by:
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Mythri A authored
If incoming map is deprecated, generate code to migrate the map. Since this involves generating additional code and a call to runtime, we only do this if one of the receiver maps was a migration target when optimizing this function. If not, we deoptimize and discard the optimized code if we see a deprecated map. This is to avoid bailout loops when we see deprecated maps. This change does the following: // We generated code to migrate deprecated maps only if one of the maps // in feedback vector is a migration target. if ( there are migration targets in feedback) { if (checkMaps fails) { if (incoming map is deprecated) { migrate the map checkMaps with the new map } else { bailout } } } else { if (checkMaps fails) bailout; } Bug: v8:10582, v8:9684 Change-Id: I8a04c77ed209dd2fb0300a783d844f2335a678c8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2292231Reviewed-by:Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
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Avi Drissman authored
Two of them were in comments; updated them to V8_OS_MACOSX. Two of them were incorrectly in #if statements. Updated them to V8_OS_MACOSX. Bug: chromium:823915, chromium:1105907 Change-Id: Ibfc0f8936dbc8cbf3b05a674e882bbc480d0b4c4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2331736Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Avi Drissman <avi@chromium.org> Cr-Commit-Position: refs/heads/master@{#69178}
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Tobias Tebbi authored
This allows templates to preserve the type of implicit parameters to select a better ovleroad, without generally extending overload resolution to implicit parameters, which could be confusing. Bug: v8:7793 Change-Id: Ie57090a295b0b46d03789829b975fc16e2a9c5b9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2329630 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#69177}
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Santiago Aboy Solanes authored
As a note, we are not yet passing this to the background so we only have canonical persistent handles on the main thread. Bug: v8:7790 Change-Id: I15b264cfacc2d5524a3d13f62574a3576bb7e1a4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330017 Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
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Dominik Inführ authored
Not needed in order to prevent use-after-frees. Bug: v8:10315 Change-Id: I7713b2fb39681bb88e60fc7cc417b40430f0c73c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2326031Reviewed-by:
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Dan Elphick authored
This allows the configuration v8_enable_shared_ro_heap and v8_enable_pointer_compression on Linux and Android, although it still defaults to off. When pointer compression and read-only heap sharing are enabled, sharing is achieved by allocating ReadOnlyPages in shared memory that are retained in the shared ReadOnlyArtifacts object. These ReadOnlyPages are then remapped into the address space of the Isolate ultimately using mremap. To simplify the creation process the ReadOnlySpace memory for the first Isolate is created as before without any sharing. It is only when the ReadOnlySpace memory has been finalized that the shared memory is allocated and has its contents copied into it. The original memory is then released (with PC this means it's just released back to the BoundedPageAllocator) and immediately re-allocated as a shared mapping. Because we would like to make v8_enable_shared_ro_heap default to true at some point but can't make this conditional on the value returned by a method in the code we are yet to compile, the code required for sharing has been mostly changed to use ifs with ReadOnlyHeap::IsReadOnlySpaceShared() instead of #ifdefs except where a compile error would result due to the absence of a class members without sharing. IsReadOnlySpaceShared() will evaluate CanAllocateSharedPages in the platform PageAllocator (with pointer compression and sharing enabled) once and cache that value so sharing cannot be toggled during the lifetime of the process. Bug: v8:10454 Change-Id: I0236d752047ecce71bd64c159430517a712bc1e2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2267300 Commit-Queue: Dan Elphick <delphick@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Reviewed-by:
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Santiago Aboy Solanes authored
When we are not going to be accessing the heap anymore, we can park the LocalHeap which signals to not wait for this thread when requesting safepoints. There are a couple of places where we want to explicitly allow access to the heap, even though we have previously parked. We use UnparkedScope for those cases. Bug: v8:7790 Change-Id: Ic0acc51fe02af89836226670b828db4aafba4d0e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2319993 Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by:
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Dominik Inführ authored
We only use IsParked from the thread that owns the LocalHeap, which is the only thread which mutates state_. So it is safe to read state_ from that thread without a mutex. Bug: v8:10315 Change-Id: I3725ca4c4c4da1c661d7b4f06d295312914b4b52 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332168Reviewed-by:
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Omer Katz authored
Bug: chromium:1108537 Change-Id: Iafb87bb74aa15ac2005e43a62a95a83831ce4b03 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332160Reviewed-by:
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Dominik Inführ authored
Moves accounting of allocation observers into the AllocationCounter class. This CL removes top_on_previous_step_ for counters that are increased regularly in the slow path of the allocation functions. AdvanceAllocationObservers() informs the AllocationCounter about allocated bytes, InvokeAllocationObservers() needs to be invoked when an allocation step is reached. NextBytes() returns the number of bytes until the next AllocationObserver::Step needs to run. Bug: v8:10315 Change-Id: I8b6eb8719ab032d44ee0614d2a0f2645bfce9df6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2320650 Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
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Dominik Inführ authored
Bug: v8:10315 Change-Id: Ice1b4d2209985594506f0f40355f4a5ed8d3a7c5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332169Reviewed-by:
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Igor Sheludko authored
This CL doesn't try to compress containers of Node* yet. Bug: v8:9923 Change-Id: Ica16b09b6f26321952b440d49a70f9a991d4275f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324258 Commit-Queue: Igor Sheludko (OOO Aug 3-17) <ishell@chromium.org> Reviewed-by:
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Dominik Inführ authored
PersistentHandles were attached to the LocalHeap when passed in through the constructor but not when created inside LocalHeap using EnsurePersistentHandles. Bug: v8:10315 Change-Id: Id24d36c935776cb0b643521c465763da7fbffd06 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2326630 Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
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Igor Sheludko authored
This is a reland of 13141c8a ... with a fix for an UB issue of passing null pointers to memcpy() when size is zero. TBR=leszeks@chromium.org Original change's description: > [zone-compr] Introduce ZoneTypeTraits and ZoneCompression > > Also move zone compression flags to src/common/globals.h. > > Bug: v8:9923 > Change-Id: Id0a77720e735e2669a1e5eef48e1b4866ad99480 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324255 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#69160} Bug: v8:9923 Change-Id: I2245b81516c39ccea262c282c659ef601af57abf Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332165 Commit-Queue: Igor Sheludko (OOO Aug 3-17) <ishell@chromium.org> Reviewed-by:
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Tobias Tebbi authored
If an enum case has a type annotation, the corresponding enum constant has this type. This is useful for typing context slots. Bug: v8:7793 Change-Id: I8b91c3bd3686048f98cce3c034eec4e36f925e5b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2329631 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/master@{#69165}
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Michael Achenbach authored
This is a JavaScript fuzzer originally authored by Oliver Chang. It is a mutation based fuzzer using Babel code transformations. For more information see the included README.md. The original code was altered: - Add new V8 copyright headers. - Make the test expectation generator aware of the headers. - Fix file endings for presubmit checks. - Fix `npm test` on fresh checkout with a new fake DB. - Make test skipping work with new v8/tools location. - OWNERS file. - New title section in README.md. No-Try: true Bug: chromium:1109770 Change-Id: Ie71752c0a37491a50500c49060a3c526716ef933 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2320330 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#69164}
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Dan Elphick authored
Excluded regions are no longer available to the RegionAllocator, so should not be freeable so actually enforce that and aAdd a test. Bug: v8:10454 Change-Id: I51c41cf0bf3d2eeb699b10b1fa02f5465d93b6aa Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330026Reviewed-by:
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Nico Hartmann authored
This reverts commit 13141c8a. Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/12253? Original change's description: > [zone-compr] Introduce ZoneTypeTraits and ZoneCompression > > Also move zone compression flags to src/common/globals.h. > > Bug: v8:9923 > Change-Id: Id0a77720e735e2669a1e5eef48e1b4866ad99480 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324255 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#69160} TBR=leszeks@chromium.org,ishell@chromium.org Change-Id: I01fc05b33d01c19f9a9432d4b2dd73cf8b38b972 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9923 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332163Reviewed-by:
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Clemens Backes authored
If we are near the stack limit, calling the proxy method might not work any more. Instead of crashing because of an empty MaybeLocal, handle this gracefully. Drive-by: Minor refactoring in TryGetValue. R=tebbi@chromium.org Bug: chromium:1110001 Change-Id: I07e7773768166b3dbea2e6b75a3ab8b24bfeee53 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332156Reviewed-by:
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Igor Sheludko authored
Also move zone compression flags to src/common/globals.h. Bug: v8:9923 Change-Id: Id0a77720e735e2669a1e5eef48e1b4866ad99480 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324255Reviewed-by:
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Thibaud Michaud authored
R=clemensb@chromium.org Bug: chromium:1111015 Change-Id: Ia56e38e1aa1b7de69b2203fe2b028f24cba16861 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330024 Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#69159}
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