- 25 Mar, 2022 6 commits
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jameslahm authored
We could optimize String#startsWith in JSCallReducer for three conditions: - If search_element is definitely not a string, we make no change. - If search_element is definitely a string and its length is less or equal than max inline matching sequence threshold, we could inline the entire matching sequence. - Else we try to inline, and have a runtime deopt if search_element is not a string. Bug: v8:8400 Change-Id: I505090b91d35fbc2c91cdf985717c68135cba807 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3517936Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/main@{#79621}
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Anton Bikineev authored
Bug: chromium:1029379 Change-Id: Ia1de91ab0ffc63912ce26349d095881a7a141ff8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3550269Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Anton Bikineev <bikineev@chromium.org> Cr-Commit-Position: refs/heads/main@{#79620}
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Tobias Tebbi authored
This reverts commit fee91f9a. Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64/44699/overview Original change's description: > Reland "[baseline] Enable concurrent sparkplug" > > Issue that cause the revert was fixed: v8:12713 > https://bugs.chromium.org/p/v8/issues/detail?id=12713 > > This is a reland of commit f01a6098 > > Original change's description: > > [baseline] Enable concurrent sparkplug > > > > Bug: v8:12054 > > Change-Id: I1b0ee1a9541a75412b882b259e421aa6e88317da > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3259658 > > Auto-Submit: Victor Gomes <victorgomes@chromium.org> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > > Cr-Commit-Position: refs/heads/main@{#79485} > > Bug: v8:12054 > Change-Id: Iafba22e3fa3b38eddb226db6cd5afdb7e3e6b435 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3528992 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79618} Bug: v8:12054 Change-Id: I3ba60433fdbb5617900c83d022e4dd6f830695f9 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3550271 Auto-Submit: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Owners-Override: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/main@{#79619}
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Victor Gomes authored
Issue that cause the revert was fixed: v8:12713 https://bugs.chromium.org/p/v8/issues/detail?id=12713 This is a reland of commit f01a6098 Original change's description: > [baseline] Enable concurrent sparkplug > > Bug: v8:12054 > Change-Id: I1b0ee1a9541a75412b882b259e421aa6e88317da > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3259658 > Auto-Submit: Victor Gomes <victorgomes@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79485} Bug: v8:12054 Change-Id: Iafba22e3fa3b38eddb226db6cd5afdb7e3e6b435 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3528992Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#79618}
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Lu Yahan authored
Change-Id: Iac021f8666058042f5c26cf07d0f3810a1d451fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3528374 Auto-Submit: Yahan Lu <yahan@iscas.ac.cn> Reviewed-by:
ji qiu <qiuji@iscas.ac.cn> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Yahan Lu <yahan@iscas.ac.cn> Cr-Commit-Position: refs/heads/main@{#79617}
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Darshan Sen authored
This fixes the following compiler warning: ``` src/compiler/backend/mid-tier-register-allocator.cc:2046:26: warning: loop variable 'succ' of type 'const v8::internal::compiler::RpoNumber' creates a copy from type 'const v8::internal::compiler::RpoNumber' [-Wrange-loop-analysis] for (const RpoNumber succ : block->successors()) { ^ src/compiler/backend/mid-tier-register-allocator.cc:2046:10: note: use reference type 'const v8::internal::compiler::RpoNumber &' to prevent copying for (const RpoNumber succ : block->successors()) { ^~~~~~~~~~~~~~~~~~~~~~ & ``` Signed-off-by:Darshan Sen <raisinten@gmail.com> Change-Id: I41a9b6aa1ee16bf140f326410ae864b425509c2d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3538285Reviewed-by:
Nico Hartmann <nicohartmann@chromium.org> Reviewed-by:
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- 24 Mar, 2022 23 commits
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Andrey Kosyakov authored
Bug: v8:1306483 Change-Id: I2f1baf1374e82418c117f9126db2388b84ef46ef Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3530110Reviewed-by:
Almothana Athamneh <almuthanna@chromium.org> Commit-Queue: Andrey Kosyakov <caseq@chromium.org> Cr-Commit-Position: refs/heads/main@{#79615}
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Marja Hölttä authored
They make assumptions which don't hold for API handlers. Bug: v8:9237,chromium:1308360 Change-Id: I9f122c4e75a24d83ef3653cbf7a223ed522e4d13 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548899Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/main@{#79614}
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Igor Sheludko authored
Bug: chromium:1309225 Change-Id: Ifd62639a2aa18b633e7cf36632677ee16c977afd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548458Reviewed-by:
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Milad Fa authored
P10 comes with prefixed instruction (2 x 4-byte instructions) which allow for using larger immediate values. `paddi` has been added in this CL which uses a 34-bit immediate. Prefixed instructions cannot cross 64-byte boundaries, i.e we cannot have the first 4-bytes on one side and the second 4-bytes emitted on the other side of the boundary. Therefore we need to align generated code to 64 bytes and emit a nop whenever the boundary is being crossed midway (check emit_prefix). Change-Id: I90e9953089214e15eeef0d70147ea5943fe05f45 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3528993Reviewed-by:
Junliang Yan <junyan@redhat.com> Commit-Queue: Milad Farazmand <mfarazma@redhat.com> Cr-Commit-Position: refs/heads/main@{#79612}
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Darius M authored
Commit 0719ace6 improves the code generated for comparisons by avoiding the materalization of the comparison bit. Now, this commit aims at doing this same improvement for binary operations. Since binary operations set the ZF flag, there is no reason to insert a "== 0" comparison. Note that this commit might increase register pressure, which might actually reduce performance. It's hard to anticipate, so we'll land it, and revert it if it's actually bad for performance. Bug: v8:12484 Change-Id: I963f0c4afdd59b35b4bac468e47d987836433163 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545165Reviewed-by:
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Shu-yu Guo authored
Add a test for the case where SlicedStrings of ThinStrings are looked up in the string table, testing the path that the original string's length differs from the actual string's length. Bug: chromium:1309767 Change-Id: I909c64397bf28ec33c3324d94882fbfe81ac4109 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3549837Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Auto-Submit: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/main@{#79610}
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Victor Gomes authored
Maglev compilation can currently fail, e.g with unsupported bytecodes. Bug: v8:7700 Change-Id: I837d69a5f9c27d4dc6fa9d03369f045fb5175d61 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541921Reviewed-by:
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Nico Hartmann authored
Bug: chromium:1309769, v8:12619 Change-Id: I880c7326f2ec91f1aa985d6b7ed67f8f5afc074b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548897 Auto-Submit: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/main@{#79608}
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Leszek Swirski authored
Change Checkpoints from IR Nodes to just normal Zone objects, pointed to by the deopting Node. Also merge Checkpoint and DeoptimizationInfo -- this has the side effect that multiple Nodes that share a checkpoint will point to the exact same deopt call. Bug: v8:7700 Change-Id: Ib36aa13afe3af6a0a22d2cfe80a13fef4bea1227 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545179 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Anton Bikineev authored
Currently, OSB can not be safely accessed if sweeping is in progress. This can, however, be easily lifted with atomic stores. Having the consistent bitmap is needed for the generational barrier for source objects (to retrieve the source object beginning). Bug: chromium:1029379 Change-Id: I5fb8db579f881ddf240ce68ad51fa8264ee645dc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545071Reviewed-by:
Omer Katz <omerkatz@chromium.org> Commit-Queue: Anton Bikineev <bikineev@chromium.org> Cr-Commit-Position: refs/heads/main@{#79606}
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Marja Hölttä authored
It's hitting unimplemented code paths. Bug: v8:11111, v8:12731 Change-Id: Icbffced6cbe207426363daa5f3b9ff5677b58b6c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548816Reviewed-by:
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Marja Hölttä authored
This reverts commit 9c3d4b35. Reason for revert: This is not the right fix (see bug). Original change's description: > [super IC] Fix receiver vs lookup start object confusion > > Bug: v8:9237,chromium:1308360 > Change-Id: I11e3c14a6cecb9d88a834711fb6252191494d5f7 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545172 > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Commit-Queue: Marja Hölttä <marja@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79571} Bug: v8:9237,chromium:1308360 Change-Id: I0efa6ab561482ffc323b63500acfeb80598f3e7c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548896 Auto-Submit: Marja Hölttä <marja@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
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Joyee Cheung authored
- When the property being defined with DefineKeyedOwnIC or DefineNamedOwnIC already exists, we should use the slow path to check if the operation is allowed in case the property is non-configurable or Object.preventExtensions() has been called on the property. - Since KeyedStoreIC:Store() reuses StoreIC::Store() when the key is a name, we should use Runtime::DefineObjectOwnProperty() for DefineKeyedOwnIC too. - When dealing with public fields, Runtime::DefineObjectOwnProperty() should use JSReceiver::CreateDataProperty() instead of Object::SetProperty() for the specified semantics. This patch also adds JSReceiver::AddPrivateField() for it and StoreIC::Store to define private fields without triggering traps or checking extensibility. - To emit a more specific error message when redefining properties on non-extensible objects, Object::AddDataProperty() now also takes a EnforceDefineSemantics enum to distinguish between set and define. - Drive-by: fix JSReceiver::CheckIfCanDefine() which should check for extensibility even if the configurability check passes. Bug: chromium:1259950, v8:9888 Change-Id: Ib1bc851ffd4b9c3a0e98cac96dafe743c08ee37e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3517934Reviewed-by:
Shu-yu Guo <syg@chromium.org> Reviewed-by:
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Leszek Swirski authored
Remove StoreToFrame and the general diff encoding for checkpoints, and instead make all Checkpoints immediately copy the live part of the interpreter frame state. This means that we don't need to recreate the frame state during graph processing, and we don't have to copy the checkpoint's state for storing in the deferred DeoptimizationInfo. In theory the diff encoding was meant to save zone memory for unused checkpoints, and for checkpoints that don't differ much from each other. However, a) We expect to do most checkpoint elimination during graph building, so the assumption that many checkpoints will be unused seems less probable, and b) We need to copy the checkpoint's frame state for emitting deopts, so we don't actually end up avoiding doing the copies. So, we can simplify things by removing this complexity. Bug: v8:7700 Change-Id: Iff9743fabbf7a017cccf0ece76a797c571764ea6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545178Reviewed-by: -
Thibaud Michaud authored
This is a reland of commit d9e1f2ae Change: disable regression test on non-SIMD hardware Original change's description: > [wasm][liftoff] Spill regs for multi-value merges > > If there is more than one value in the merge region, a stack-to-stack > move can overwrite the source of a stack-to-register move. To avoid > this, spill all registers. > > R=clemensb@chromium.org > > Bug: chromium:1299183 > Change-Id: I10495434d0a18c9072ee3882e00a687edd8c592a > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3523044 > Reviewed-by: Clemens Backes <clemensb@chromium.org> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79584} Bug: chromium:1299183 Change-Id: I6f2af786ab91194a93945f5030575d1b8abee7fd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548716Reviewed-by:
Clemens Backes <clemensb@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/main@{#79601}
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Leszek Swirski authored
Rather than emitting eager deopt code inline, use the full DeoptimizationData+TranslationArray mechanism in maglev, for consistency with TurboFan and simplification of implementing lazy deopts in the future. Bug: v8:7700 Change-Id: I67282b27493772c78ad28feaa4ad6a2c35c8e239 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545169Reviewed-by:
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Leszek Swirski authored
This reverts commit 802c7b3e. Reason for revert: Cluserfuzz found a reason to have this. Original change's description: > [string] DCHECK instead of test that ThinString's actuals have same length > > ThinStrings always forward to internalized strings that have the same > character contents and thus the same length. > > Change-Id: I5929d266f96b23029f4786baf993a431cf4ad38d > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541522 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79582} Change-Id: Ib8a7b962242f8b8ab3ffc5c70ed1c84d187e5b8e No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548459 Auto-Submit: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/main@{#79599}
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jameslahm authored
In LowerStringCodePointAt, rather than call StringCodePointAt builtin, we could inline it using StringCharCodeAt. Bug: v8:11743 Change-Id: I924f4180ffcfd583cfcbba57b2e0cf114adef068 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3517935Reviewed-by:
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Jakob Gruber authored
This reverts part of crrev.com/c/2413252 since std::unique_ptr does not satisfy is_standard_layout; and is_standard_layout is needed to use offsetof: error: offset of on non-standard-layout type [-Werror,-Winvalid-offsetof] Fixed: v8:12721 Change-Id: Ifbb1235fc3b8d1d855d41a226117fed88c506078 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3540141Reviewed-by:
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Nikolaos Papaspyrou authored
Report fine-grain incremental mark/sweep statistics to the Recorder API. These will be used by Blink to populate UMA histograms such as V8.GC.Event.MainThread.Full.Incremental.(Mark|Sweep). Bug: chromium:1154636 Change-Id: I1cbdcb2ffa49bd01d04a2e1d43921cebf956ac84 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545070Reviewed-by:
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Anton Bikineev authored
Bug: chromium:1029379 Change-Id: I74aeaa27c27ed33c169eee74b3a8c22adedb04eb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545320 Auto-Submit: Anton Bikineev <bikineev@chromium.org> Reviewed-by:
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Benedikt Meurer authored
The debugger maintains a stack of promises used for catch prediction with promise builtins and async functions. Previously this stack would hold on to the individual promises strongly, and subtle bugs that lead to not properly cleaning up the stack in some corner cases would often lead to significant memory issues (e.g. leaking whole iframes). This refactors the PromiseOnStack to be (a) on the V8 heap, rather than allocating C++ structs with global handles pointing to the promises, and (b) hold on to the promises only weakly. While this will not guarantee proper promise stack management, it will at least ensure that edge cases don't lead to catastrophic (debugger only) leaks. Bug: chromium:1292063 Change-Id: I9c293ca2032de3a59e1e9624f132d37187805567 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545176 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/main@{#79594}
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Clemens Backes authored
Before productionizing this, we probably want to just ignore the whole section if it contains invalid data, but for now failing with a decode error is more consistent with existing checks. R=ecmziegler@chromium.org Bug: v8:12537 Change-Id: I7fc5933573a4d6eddd039bf51361c5bee5c5170d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545177Reviewed-by:
Emanuel Ziegler <ecmziegler@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/main@{#79593}
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- 23 Mar, 2022 11 commits
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Tobias Tebbi authored
This reverts commit ad09811a. Reason for revert: reverted by accident Original change's description: > Revert "cppgc: Add DCHECK that object start bitmap is safe to use" > > This reverts commit 9e1db518. > > Reason for revert: https://chromium-review.googlesource.com/c/v8/v8/+/3535782 causes roll failures, this needs to be reverted too because it's based on it > > Original change's description: > > cppgc: Add DCHECK that object start bitmap is safe to use > > > > During sweeeping/compaction the bitmap is being reconstructed and > > should not be relied on for finding object start. > > Add a DCHECK that the bitmap is fully populated. > > > > Bug: chromium:1307471 > > Change-Id: I4aa414722262bb6fb169123a49fce1510a60d3ef > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3540680 > > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > > Commit-Queue: Omer Katz <omerkatz@chromium.org> > > Cr-Commit-Position: refs/heads/main@{#79575} > > Bug: chromium:1307471 > Change-Id: I377b8737609fff33199776dce3d997f31074c59b > No-Presubmit: true > No-Tree-Checks: true > No-Try: true > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545316 > Auto-Submit: Tobias Tebbi <tebbi@google.com> > Owners-Override: Tobias Tebbi <tebbi@google.com> > Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> > Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> > Cr-Commit-Position: refs/heads/main@{#79586} Bug: chromium:1307471 Change-Id: I04357072c6974e045c1e2bdea93d4059a1e987b2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545319 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Owners-Override: Tobias Tebbi <tebbi@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by:
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Anton Bikineev authored
Accidentally, remembered sets for slots and source objects were passed by value when visiting. Bug: chromium:1029379 Change-Id: I1942a13605990c0b13c378d33d3ace602daddf0d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545318 Commit-Queue: Anton Bikineev <bikineev@chromium.org> Auto-Submit: Anton Bikineev <bikineev@chromium.org> Reviewed-by:
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Tobias Tebbi authored
This reverts commit 164a040a. Reason for revert: roll failure: https://ci.chromium.org/ui/p/chromium/builders/try/cast_shell_linux/1164753/overview Original change's description: > cppgc: Add regression test and check for object start bitmap > > Access to the object start bitmap is only safe during marking until > sweeping is started as the concurrent sweeper may clear and rebuild > the bitmap at any time during sweeping. > > Adds a DCHECK and an additional test for a previously broken > pre-finalizer scenario. > > Bug: chromium:1307471 > Change-Id: If67ade43f7cdad6de4720c0efeac11bfe8c22b3c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3535782 > Reviewed-by: Nikolaos Papaspyrou <nikolaos@chromium.org> > Reviewed-by: Omer Katz <omerkatz@chromium.org> > Commit-Queue: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79550} Bug: chromium:1307471 Change-Id: I181e63a34eae9369184fb86112bc64e53b8bfad5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545317 Owners-Override: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
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Michael Lippautz authored
Remove deprecated TracedGlobal<>, greatly simplifying handling of traced references in general. Also saves a word per v8::TracedReference as there's no need to keep a possible callback around. Bug: v8:12603 Change-Id: Ice35d7906775b912d02e97a27a722b3e1cec28d9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3532251Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/main@{#79589}
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Anton Bikineev authored
Currently, we assume: allocated-object-size = marked-bytes-on-previous-cycle + k, which is not the case for the sticky bits (with the young generation enabled). The CL introduces a variable StatsCollector::marked_bytes_so_far_ that keeps track of marked bytes across GCs. Bug: chromium:1029379 Change-Id: I749c8c0174889c10093c75f88c096c68905bf36e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545167Reviewed-by:
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Michael Lippautz authored
This fixes a general race with stack-scoped `TestPlatform` which may go out of scope while tasks on workers are still running. Add a barrier for workers, implemented through tasks, to synchronize destruction of `TestPlatform`. While this fixes general races, such short-lived platforms still break if tasks cache the global platform pointer. Bug: v8:12635 Change-Id: Ifc6ecc29f0e2b7297ca52051eae9bd81013b60ce Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3536651Reviewed-by:
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Tobias Tebbi authored
This reverts commit 9e1db518. Reason for revert: https://chromium-review.googlesource.com/c/v8/v8/+/3535782 causes roll failures, this needs to be reverted too because it's based on it Original change's description: > cppgc: Add DCHECK that object start bitmap is safe to use > > During sweeeping/compaction the bitmap is being reconstructed and > should not be relied on for finding object start. > Add a DCHECK that the bitmap is fully populated. > > Bug: chromium:1307471 > Change-Id: I4aa414722262bb6fb169123a49fce1510a60d3ef > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3540680 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Omer Katz <omerkatz@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79575} Bug: chromium:1307471 Change-Id: I377b8737609fff33199776dce3d997f31074c59b No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545316 Auto-Submit: Tobias Tebbi <tebbi@google.com> Owners-Override: Tobias Tebbi <tebbi@google.com> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/main@{#79586}
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Shu-yu Guo authored
This reverts commit d9e1f2ae. Reason for revert: Linux test failures: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux/45960/overview Original change's description: > [wasm][liftoff] Spill regs for multi-value merges > > If there is more than one value in the merge region, a stack-to-stack > move can overwrite the source of a stack-to-register move. To avoid > this, spill all registers. > > R=clemensb@chromium.org > > Bug: chromium:1299183 > Change-Id: I10495434d0a18c9072ee3882e00a687edd8c592a > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3523044 > Reviewed-by: Clemens Backes <clemensb@chromium.org> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> > Cr-Commit-Position: refs/heads/main@{#79584} Bug: chromium:1299183 Change-Id: I465129695cfc1c5678923f7eefe5b91e31383798 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3546745 Auto-Submit: Shu-yu Guo <syg@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Shu-yu Guo <syg@chromium.org> Owners-Override: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/main@{#79585}
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Thibaud Michaud authored
If there is more than one value in the merge region, a stack-to-stack move can overwrite the source of a stack-to-register move. To avoid this, spill all registers. R=clemensb@chromium.org Bug: chromium:1299183 Change-Id: I10495434d0a18c9072ee3882e00a687edd8c592a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3523044Reviewed-by:
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Joyee Cheung authored
Since assignments to read-only private references can be skipped due to short-circuiting in logical assignments, we should not eagerly emit the error of invalid writes, and should instead load the values as usual, only emitting an error when the assignment happens, which can be handled by BytecodeGenerator::BuildAssignment(). Bug: v8:12680, v8:8330, v8:10372 Change-Id: Ia5fea9090bc48b0af8a9c8d6f95174f7aa2d86f8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3509298Reviewed-by:
Marja Hölttä <marja@chromium.org> Commit-Queue: Joyee Cheung <joyee@igalia.com> Cr-Commit-Position: refs/heads/main@{#79583}
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Shu-yu Guo authored
ThinStrings always forward to internalized strings that have the same character contents and thus the same length. Change-Id: I5929d266f96b23029f4786baf993a431cf4ad38d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541522Reviewed-by:
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