- 19 Oct, 2020 39 commits
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Michael Achenbach authored
This reverts commit eb6b4ce1. Reason for revert: Might need rebaseline: https://ci.chromium.org/p/v8/builders/ci/V8%20Blink%20Linux/7519 Original change's description: > [runtime] Use Isolate::ThrowAt with MessageLocation > > Fix various missing source positions when reporting parse and compile > errors. Namely this fixes missing source positions when having invalid > module imports. > > - Use Isolate::ThrowAt with valid MessageLocation objects > - Change public Isolate::Throw to no longer accept MessageLocation to > avoid misues > - Introduce private Isolate::ThrowInternal that accepts MessageLocation > > Bug: v8:6513 > Change-Id: I3ee633c9fff8c9d361bddb37f56e28a50c280ec1 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2467839 > Commit-Queue: Camillo Bruni <cbruni@chromium.org> > Reviewed-by: Marja Hölttä <marja@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70623} TBR=marja@chromium.org,cbruni@chromium.org,ishell@chromium.org Change-Id: Ifa16ef8b6e5e411712fbad2e2a58fd700da12a69 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:6513 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485498Reviewed-by: Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#70631}
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Ng Zhi An authored
Not sure why I originally chose to name it LoadMem32Zero instead of Load32Zero like the proposal. This fixes it. Bug: v8:10713 Change-Id: If05603f743213bc6b7aea0ce22c80ae4b3023ccf Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2481824Reviewed-by: Bill Budge <bbudge@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#70630}
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Ross McIlroy authored
The feedback vector can be retrieved from the callee's frame, and the actual_map can be read from the actual_value, so avoid passing these explicitly to the DynamicMapChecks builtin. This reduces the size of each DynamicMapCheck codegen by around 20 bytes on x64. BUG=v8:9684 Change-Id: I31cf9b8cf085284ac051ebafc86f3e26105f3046 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485813 Auto-Submit: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#70629}
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Ng Zhi An authored
For splats, we can make use of vshufps to avoid a movss. Without AVX, specific dst to be same as src in the instruction selector. For extract lane, we can use vshufps to extract a float into a dst xmm, and leave junk in the higher bits. On the meshopt_decoder.js benchmark in linked bug, it removes about 7 movss instructions that did nothing. Hardware can do register renaming, but let's not rely on that :) R=bbudge@chromium.org Bug: v8:10116 Change-Id: I4d68c10536a79659de673060d537d58113308477 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2481473 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#70628}
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Daniel Bevenius authored
Change-Id: I29a6d91f542dc78a8ec532a4e4a74ccc792308a3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485811 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#70627}
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Ng Zhi An authored
LoadKind is not longer just for load, we use it for stores as well (starting with https://crrev.com/c/2473383). Rename it to something more generic. Bug: v8:10975,v8:10933 Change-Id: I5e5406ea475e06a83eb2eefe22d4824a99029944 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2481822 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#70626}
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Etienne Pierre-doray authored
IsRunning is the v8 equivalent of operator bool, but is confusing with IsCompleted. IsValid (to match base:: operator bool) should be more clear. Change-Id: I2529bea21c7cb7613bd5057c66715fb5ea450396 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461840Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Omer Katz <omerkatz@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org> Cr-Commit-Position: refs/heads/master@{#70625}
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Ng Zhi An authored
Also known as multiply long, this multiplies the top or bottom half of the input operands, the result is twice as wide as the input. This implements arm64 and interpreter. Bug: v8:11008 Change-Id: Iad693007066dd1a9bc529b282e88812a081c3a01 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2469156Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Bill Budge <bbudge@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#70624}
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Camillo Bruni authored
Fix various missing source positions when reporting parse and compile errors. Namely this fixes missing source positions when having invalid module imports. - Use Isolate::ThrowAt with valid MessageLocation objects - Change public Isolate::Throw to no longer accept MessageLocation to avoid misues - Introduce private Isolate::ThrowInternal that accepts MessageLocation Bug: v8:6513 Change-Id: I3ee633c9fff8c9d361bddb37f56e28a50c280ec1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2467839 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#70623}
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Daniel Clark authored
Parse the AssertEntries in an import assertion clause, storing them in a map. Plumb them through the parser to the appropriate SourceTextModuleDescriptor methods. The next change will plumb them into the SourceTextModuleDescriptor's ModuleRequestMap and through to SourceTextModuleInfo::New. Bug: v8:10958 Change-Id: I19c31090520f14f94d014e760f5fe372bf773fc2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2482326Reviewed-by: Marja Hölttä <marja@chromium.org> Commit-Queue: Dan Clark <daniec@microsoft.com> Cr-Commit-Position: refs/heads/master@{#70622}
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Clemens Backes authored
Since JS arguments are always reversed now (https://crrev.com/c/2466116), the logic for skipping the arguments adapter is dead. Hence this CL removes the dead enum value and all code handling it. R=victorgomes@chromium.org Bug: v8:10201 Change-Id: Ie225d14f4ef4e698b76a69cb97fd3eef616e9222 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485074Reviewed-by: Victor Gomes <victorgomes@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#70621}
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Clemens Backes authored
Migrate wrapper compilation from the tasks API to the job API. This avoids querying the platform for the number of available threads, and makes the code much more idiomatic. R=thibaudm@chromium.org CC=etiennep@chromium.org Bug: chromium:1101340 Change-Id: I2d84176fe729c065348fd479fe8fd1a0d2f19a50 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2471379 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#70620}
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Shu-yu Guo authored
Finally blocks that unconditionally result in an abrupt completion immediately are currently incorrectly returning the existing completion value instead of undefined. Bug: v8:10978 Change-Id: Ida2e27d9cc9711236a1fb30368bfc7213d0f7140 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2473382Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#70619}
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Victor Gomes authored
This is a reland of 5afa3add Original change's description: > [cleanup] Create virtual FrameWithJSLinkages > > - CommonFrameWithJSLinkage > - TypedFrameWithJSLinkage > > Change-Id: Ib70967c6b8bc9129d7562ec5587076e66312ca25 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2480562 > Commit-Queue: Victor Gomes <victorgomes@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70609} Change-Id: I6e952cdeb8ec37c02f16ad854e8366ef742072b6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2483845Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/master@{#70618}
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Frank Emrich authored
This adds a getter for ordered property dictionaries of maps Bug: v8:7569 Change-Id: I7e8668ec707734b97f41f1a85c70b00b3b10c981 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465824 Commit-Queue: Frank Emrich <emrich@google.com> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#70617}
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Clemens Backes authored
Replace the "PublishCompilationResults" event by "AddCompiledCode" and "PublishCode". The former will be parallel, while the latter will not be. This was a bit misleading before, since in the "PublishCompilationResults" event we didn't always publish. R=ahaas@chromium.org Change-Id: Ia114d6edda77ebf128416af9be998d54bc8aaa12 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2479470 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#70616}
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Milad Fa authored
Port 0403beb4 Original Commit Message: This is a reland of cdc8d9a5 Skipped tests on gc_stress and fixed CONSTEXPR_DCHECK for gcc. Original change's description: > [TurboProp] Avoid marking the output of a call live in its catch handler > > The output of a call won't be live if an exception is thrown while the > call is on the stack and we unwind to a catch handler. > > BUG=chromium:1138075,v8:9684 > > Change-Id: I95bf535bac388940869eb213e25565d64fe96df1 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2476317 > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70562} R=rmcilroy@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com BUG= LOG=N Change-Id: Ie2d0bc87824afa2555b0dd7021a24e965587ee42 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2483629Reviewed-by: Junliang Yan <junyan@redhat.com> Commit-Queue: Milad Fa <mfarazma@redhat.com> Cr-Commit-Position: refs/heads/master@{#70615}
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Milad Fa authored
Port dcf467a8 Original Commit Message: - Use kNoBuiltinId instead of literal -1. - Remove support for non-embedded builtins. - Update Code object layout comment. R=jgruber@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com BUG= LOG=N Change-Id: Ie0101d883c8116a6076a7b9ef8b82dbcd1960dbf Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2483628Reviewed-by: Junliang Yan <junyan@redhat.com> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Milad Fa <mfarazma@redhat.com> Cr-Commit-Position: refs/heads/master@{#70614}
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Clemens Backes authored
If the main thread (or multiple main threads, or different isolates) executes compilation units, it uses task id 0. This id will also be used by the first worker thread. Avoid this by shifting the ids of worker threads by one. R=thibaudm@chromium.org CC=etiennep@chromium.org Bug: v8:11005 Change-Id: I3beb8a5716112d9466c5b0296ab4ed1f2cf20519 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2471378Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#70613}
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Maya Lekova authored
This reverts commit 5afa3add. Reason for revert: Seems to break CFI, see https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20cfi/26994 Original change's description: > [cleanup] Create virtual FrameWithJSLinkages > > - CommonFrameWithJSLinkage > - TypedFrameWithJSLinkage > > Change-Id: Ib70967c6b8bc9129d7562ec5587076e66312ca25 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2480562 > Commit-Queue: Victor Gomes <victorgomes@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70609} TBR=ishell@chromium.org,victorgomes@chromium.org Change-Id: I5d3a16a3010e41896448cb9462d7cc2a0813ca63 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484705Reviewed-by: Maya Lekova <mslekova@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#70612}
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Milad Fa authored
Port 2bc52ff7 Original Commit Message: Implement i32x4.dot_i16x8_s for Liftoff on on ia32 and x64. ARM implementation will come later. R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com BUG= LOG=N Change-Id: I2cc3afe63802aa00b8e5e7dcfb710c49d1486a90 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484337Reviewed-by: Junliang Yan <junyan@redhat.com> Commit-Queue: Milad Fa <mfarazma@redhat.com> Cr-Commit-Position: refs/heads/master@{#70611}
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Victor Gomes authored
Change-Id: Idc91485e873dabd2cd304f2347e2565753342abd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2472001 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Auto-Submit: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/master@{#70610}
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Victor Gomes authored
- CommonFrameWithJSLinkage - TypedFrameWithJSLinkage Change-Id: Ib70967c6b8bc9129d7562ec5587076e66312ca25 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2480562 Commit-Queue: Victor Gomes <victorgomes@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#70609}
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Camillo Bruni authored
Drive-by-fix: - fix legend formatting - Fix color from type retrieval - Partially fix file location parsing in Processor Bug: v8:10644 Change-Id: I8d9ecc4923c9772de66da74e9440b293fcecc5e2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465831 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#70608}
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Camillo Bruni authored
- Avoid private fields (using _xyz instead of #xyz) - Avoid static fields on classes These are temporary changes that eventually will be reverted once FireFox and Safari support it. Bug: v8:10644 Change-Id: I3d757251eaedef92751970d866882c3d912c7e3e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464924 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#70607}
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Camillo Bruni authored
- Use *LogEntry in more places to avoid confusion with HTML Events - Move Processor.kProperties to IcLogEntry.getPropertyNames - Move timeline-track legend "All" entry to the end Bug: v8:10644 Change-Id: I5a9e833ad0570c39d3106955fa2ba00af53b7062 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463241 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Auto-Submit: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#70606}
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Martin Bidlingmaier authored
The problem was that a raw regexp value was handlified to account for gc, but then afterwards we used the initial regexp value again instead of the handle. This resulted in memory violations if the gc decided to move the regexp object. Bug: chrome:1139304,v8:10765,v8:11021 Change-Id: Ib1c31ae4a960523c9939619bcca9606dbb507c81 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484771Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Martin Bidlingmaier <mbid@google.com> Cr-Commit-Position: refs/heads/master@{#70605}
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Frank Emrich authored
This changes OrderedHashMap, OrderedHashSet, and OrderedNameDictionary as follows: - Create a dedicated allocation function AllocateEmpty to create zero- element instances of these classes - Fix bugs resulting from using these zero-element versions Further, this CL - provides a canonical empty versions of OrderedNameDictionary - changes the types of the canonical ordered hash table and hash set from FixedArray to the actual subclasses Bug: v8:7569 Change-Id: I0fe1215e7d164617afa777c8b3208a0857ab6edd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2476315 Commit-Queue: Frank Emrich <emrich@google.com> Reviewed-by: Igor Sheludko <ishell@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#70604}
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Thibaud Michaud authored
Preparing for tail call is usually done by emitting the gap moves and then moving the stack pointer to its new position. An optimization consists in moving the stack pointer first and transforming some of the moves into pushes. In the attached case it looks like this (arm): 138 add sp, sp, #40 13c str r6, [sp, #-4]! 140 str r6, [sp, #-4]! 144 str r6, [sp, #-4]! 148 str r6, [sp, #-4]! 14c str r6, [sp, #-4]! ... 160 vldr d1, [sp - 4*3] The last line is a gap reload, but because the stack pointer was already moved, the slot is now below the stack pointer. This is invalid and triggers this DCHECK: Fatal error in ../../v8/src/codegen/arm/assembler-arm.cc, line 402 Debug check failed: 0 <= offset (0 vs. -12). A comment already explains that we skip the optimization if the gap contains stack moves to prevent this, but the code only checks for non-FP slots. This is fixed by replacing "source.IsStackSlot()" with "source.IsAnyStackSlot()": 108 vldr d1, [sp + 4*2] ... 118 str r0, [sp, #+36] 11c str r0, [sp, #+32] 120 str r0, [sp, #+28] 124 str r0, [sp, #+24] 128 str r0, [sp, #+20] ... 134 add sp, sp, #20 R=jgruber@chromium.org Bug: chromium:1137608 Change-Id: If2b85dde49bf31a6bd3f5e0255407f9390727f9d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2474784Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#70603}
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Michael Lippautz authored
- Use backticks to create cross-refs (https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++-dos-and-donts.md#comment-style) - More API docs Change-Id: Ia90641a532aa84c51bbf4cf96d9ab1c6c1505de5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484403Reviewed-by: Omer Katz <omerkatz@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#70602}
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Salome Thirot authored
This fixes a bug that made a test fail in mjsunit/wasm/return-call.js (the CFI bot does not run the tests with --variants=extra, hence why it didn't catch it). It also introduces --sim-abort-on-bad-auth, a debug flag for the arm64 simulator that stops a program as soon as an authentication error appears, to make debugging easier. Change-Id: Ibee731ab788aff45301d268ef05256b82f5e4613 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2473833 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#70601}
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Jakob Gruber authored
The flaky failure is three years old, let's see how it behaves today. Bug: v8:5920 Change-Id: Idaa71d274f937e3c6997b49e0acfe7cc88e64956 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484571 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#70600}
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Omer Katz authored
Bug: chromium:1056170 Change-Id: I010ab2ff2c55ce54b5dcc2df6fb7bbcd14b03e2a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2480568Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/master@{#70599}
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Jakob Gruber authored
Introduced by https://chromium-review.googlesource.com/c/v8/v8/+/2465834. No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:8661,v8:8768 Change-Id: I3414ede29e5664ea94df2210cd793264fe8fffa6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484572 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#70598}
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Jakob Gruber authored
While the overall goal of this commit is to change deoptimization entries into builtins, there are multiple related things happening: - Deoptimization entries, formerly stubs (i.e. Code objects generated at runtime, guaranteed to be immovable), have been converted into builtins. The major restriction is that we now need to preserve the kRootRegister, which was formerly used on most architectures to pass the deoptimization id. The solution differs based on platform. - Renamed DEOPT_ENTRIES_OR_FOR_TESTING code kind to FOR_TESTING. - Removed heap/ support for immovable Code generation. - Removed the DeserializerData class (no longer needed). - arm64: to preserve 4-byte deopt exits, introduced a new optimization in which the final jump to the deoptimization entry is generated once per Code object, and deopt exits can continue to emit a near-call. - arm,ia32,x64: change to fixed-size deopt exits. This reduces exit sizes by 4/8, 5, and 5 bytes, respectively. On arm the deopt exit size is reduced from 12 (or 16) bytes to 8 bytes by using the same strategy as on arm64 (recalc deopt id from return address). Before: e300a002 movw r10, <id> e59fc024 ldr ip, [pc, <entry offset>] e12fff3c blx ip After: e59acb35 ldr ip, [r10, <entry offset>] e12fff3c blx ip On arm64 the deopt exit size remains 4 bytes (or 8 bytes in same cases with CFI). Additionally, up to 4 builtin jumps are emitted per Code object (max 32 bytes added overhead per Code object). Before: 9401cdae bl <entry offset> After: # eager deoptimization entry jump. f95b1f50 ldr x16, [x26, <eager entry offset>] d61f0200 br x16 # lazy deoptimization entry jump. f95b2b50 ldr x16, [x26, <lazy entry offset>] d61f0200 br x16 # the deopt exit. 97fffffc bl <eager deoptimization entry jump offset> On ia32 the deopt exit size is reduced from 10 to 5 bytes. Before: bb00000000 mov ebx,<id> e825f5372b call <entry> After: e8ea2256ba call <entry> On x64 the deopt exit size is reduced from 12 to 7 bytes. Before: 49c7c511000000 REX.W movq r13,<id> e8ea2f0700 call <entry> After: 41ff9560360000 call [r13+<entry offset>] Bug: v8:8661,v8:8768 Change-Id: I13e30aedc360474dc818fecc528ce87c3bfeed42 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465834 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#70597}
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Michael Lippautz authored
Change-Id: Ie0b3a41e4248fb831d76ac47417cd8cb3a1e23f9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2482823 Commit-Queue: Omer Katz <omerkatz@chromium.org> Auto-Submit: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/master@{#70596}
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Zhao Jiazhong authored
kDoubleRegZero register is not hardwired to 0.0, we need to check it's value before using it. Change-Id: I8a64ac55294f51a9a5f96a39a3b344f7e34d508a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2479223Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Zhi An Ng <zhin@chromium.org> Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Cr-Commit-Position: refs/heads/master@{#70595}
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Jakob Gruber authored
This reverts commit 1e1f9ffc. Reason for revert: https://bugs.chromium.org/p/chromium/issues/detail?id=1139304 Original change's description: > [regexp] Enable fallback to experimental engine by default > > This CL enables the functionality that was added in d4febb6b by > flipping the corresponding feature flag. > > Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng > Bug: v8:10765 > Bug: v8:11021 > Change-Id: Id061a274b016c71e6a4f7d7934a9c287d3124228 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2470568 > Commit-Queue: Martin Bidlingmaier <mbid@google.com> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70510} TBR=jgruber@chromium.org,mbid@google.com No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10765,v8:11021,chromium:1139304 Change-Id: Ie9c38cc30d1fa81d395cc11ab1f1db5e19ba04de Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484402 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#70594}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/67889e6..198585c Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/5d73338..89eeef5 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/4761cf5..958dc62 TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com Change-Id: I46de091a4dd60a416a5188ce2756361818038384 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2483516Reviewed-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@{#70593}
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- 18 Oct, 2020 1 commit
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Dmitry Gozman authored
This changes remoteObjectId format from "{injectedScriptId:123,id:456}" to "<isolateId>.<contextId>.<id>". Prepending isolateId fixes the problem that remote object ids clash between processes. This is especially troubling during cross-process navigation in Chromium, see bug. We also stop producing and parsing unnecessary json for object ids. Drive-by: fixed some tests dumping object ids. Most tests avoid dumping unstable values like ids, but there were few that still did. BUG=chromium:1137143 Change-Id: Ia019757fb95704ccb718d3ea6cc54bde1a133382 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461731 Commit-Queue: Dmitry Gozman <dgozman@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#70592}
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