- 01 Jun, 2022 10 commits
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Liviu Rau authored
Unused imports and some deprecation related updates. Bug: v8:12785 Change-Id: Ia3998a75f0c3b83eef4134741c1bda5f3d49c6f4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3678840Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Liviu Rau <liviurau@chromium.org> Cr-Commit-Position: refs/heads/main@{#80883}
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jameslahm authored
... managed-unittest. Bug: v8:12781 Change-Id: Ic9dea14ffd0f8ca944c39d791c2b66aa1f76bcfe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3682881Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: 王澳 <wangao.james@bytedance.com> Cr-Commit-Position: refs/heads/main@{#80882}
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jameslahm authored
... threads-unittest. Bug: v8:12781 Change-Id: I1294d0bf9f47c158532a489657bc1e5349afce79 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3682882Reviewed-by:
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jameslahm authored
... hashmap-unittest. Bug: v8:12781 Change-Id: Id2d4c1d41540791e4c32919d4da4648565ac9faf Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3682880Reviewed-by:
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Leszek Swirski authored
When injecting locations for block-end gap moves into Phis, make sure to maintain register frame state too, so that the subsequent MergeRegisterValues call sees the result of these moves. Bug: v8:7700 Change-Id: I4f68e386c5a6cc578d26904306cb9b0c2f7a90d6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3676861 Auto-Submit: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/main@{#80879}
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Leszek Swirski authored
Add a method which optionally merges dead fallthrough paths, in case the iteration in EmitUnconditionalDeopt reaches a merge point that is live from another jump but dead on the fallthrough. Bug: v8:7700 Change-Id: Ie505cd5356fcf70208f2f6d3e52b805956485f74 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3663086 Auto-Submit: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by:
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Dominik Inführ authored
Unlike other spaces we didn't update external bytes counters when adding or removing pages from large spaces. Bug: chromium:1329766 Change-Id: I5fbc8703964f9e4e846d986c32c5d57ed4f0c0c5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3681118 Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/main@{#80877}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b2f1ec8..fb6ee35 Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/a5fa465..8b16338 Rolling v8/buildtools/linux64: git_revision:c547ca1497e3ff0dcbc0b2cb036b3d40380cbeeb..git_revision:37baefb026b199605affa7bcb24810d1724ce373 Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx/+log/79a2e92..b126981 Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/4ad92ec..c30c515 Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/d03f56b..5e737be Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/a1cf7a2..fba169d Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/4e6aa25..e1197f0 Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220522.3.1..version:8.20220531.3.1 Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/80b28c9..64bbf98 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/6df1876..393c871 Rolling v8/tools/luci-go: git_revision:0ef9351a5b73943d547fb27d463d5f4a1572727f..git_revision:de014227dd270df7c61bfab740eb4ae4b52ac2a7 Rolling v8/tools/luci-go: git_revision:0ef9351a5b73943d547fb27d463d5f4a1572727f..git_revision:de014227dd270df7c61bfab740eb4ae4b52ac2a7 R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com Change-Id: I350575968cfc4adfe6d6785146735d83debfa0a6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3682481 Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Cr-Commit-Position: refs/heads/main@{#80876}
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Shu-yu Guo authored
This is a reland of commit ea9a1f1c Changes since revert: - Make the state field uintptr-aligned since arm64 faults on atomic accesses to non-naturally aligned addresses. Original change's description: > [shared-struct] Add Atomics.Mutex > > This CL adds a moving GC-safe, JS-exposed mutex behind the > --harmony-struct flag. It uses a ParkingLot-inspired algorithm and > each mutex manages its own waiter queue. > > For more details, please see the design doc: https://docs.google.com/document/d/1QHkmiTF770GKxtoP-VQ1eKF42MpedLUeqiQPfCqus0Y/edit?usp=sharing > > Bug: v8:12547 > Change-Id: Ic58f8750d2e14ecd573173d17d5235a136bedef9 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3595460 > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> > Reviewed-by: Adam Klein <adamk@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/main@{#80789} Bug: v8:12547 Change-Id: I776cbf6ea860dcc6cb0ac51694a9b584b53d255c Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng Cq-Include-Trybots: luci.v8.try:v8_mac_arm64_rel_ng Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3673354Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
Adam Klein <adamk@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/main@{#80875}
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Shu-yu Guo authored
Bug: v8:12764 Change-Id: I67b9b0e4f3c7ca6a2719c234b7f7605f07f86b28 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3671760Reviewed-by:
Marja Hölttä <marja@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by:
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- 31 May, 2022 30 commits
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Milad Fa authored
Port: a77dd89e Bug: v8:5210, chromium:1269989, chromium:1313647 Change-Id: I91cb97d7d807c70939a8da4b80386d5aed5f3c8b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3677453 Commit-Queue: Milad Farazmand <mfarazma@redhat.com> Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Reviewed-by:
Junliang Yan <junyan@redhat.com> Cr-Commit-Position: refs/heads/main@{#80873}
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Andreas Haas authored
When async compilation finishes for WebAssembly, the promise returned by `WebAssembly.compile()` gets resolved. Resolving the promise creates a microtask that should get executed automatically when the call stack empties up when MicrotasksPolicy::kAuto is used. However, this policy requires a CallDepthScope to work, but there is no CallDepthScope when WebAssembly compilation finishes. This CL adds this CallDepthScope. R=jkummerow@chromium.org Bug: chromium:1297672 Change-Id: I1bd607dec9daf08b3dbb1294393a8af255d222ff Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679579 Auto-Submit: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/main@{#80872}
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Milad Fa authored
Modification is needed since after this CL: https://crrev.com/c/3676642 Bug: v8:12781 Change-Id: Icb2644c9cd6f20e37c4b0ba0c4b861417c84b7f1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679980Reviewed-by:
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Joyee Cheung authored
This reverts commit 07e11a64. Reason for revert: caused regressions and heap verification failures Bug: chromium:1330410, chromium:1330408, chromium:1330413 Original change's description: > [heap] pre-populate the single_character_string_cache > > This simplifies the code and removes the runtime overhead of > spontaneously adding strings to the cache. > > Bug: v8:12718 > Change-Id: I2ed49bd82e3baf2563eeb8f463be72c0308c52c5 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3616553 > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> > Reviewed-by: Tobias Tebbi <tebbi@chromium.org> > Commit-Queue: Joyee Cheung <joyee@igalia.com> > Cr-Commit-Position: refs/heads/main@{#80803} Bug: v8:12718 Change-Id: I569fea9e34effd57c9e7c65190cf5b4ec0b0623b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679680 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by:
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Nikolaos Papaspyrou authored
This CL introduces the following changes to the experimental implementation of the object start bitmap, that is evaluated as a mechanism for resolving inner pointers (behind the flag v8_enable_conservative_stack_scanning): - Manually iterate through page objects, instead of using the PagedSpaceObjectIterator, for performance (avoid calling MakeHeapIterable all the time) and to simplify the handling of filler objects. - Clear bits when reusing evacuated pages of the new space. - Use the cage base to iterate correctly through code objects. - Introduce a method for verifying the validity of the object start bitmap. - Minor fixes, additional checks and cleanup. Bug: v8:12851 Change-Id: I245937ffe6f4b53c4c2dcf5126e8836aec4dc79e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3675099Reviewed-by:
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Leszek Swirski authored
Fixed: chromium:1330584 Change-Id: I8ae7942226350e52419e42fc46cb157bd480d102 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3680301 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/main@{#80868}
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Clemens Backes authored
Remove code size and compilation time sampling for the "top tier finished" event. With dynamic tiering, this event will never be reached. R=ahaas@chromium.org Bug: v8:12899 Change-Id: I1b0d053e31fe8cd1f8ba3b23bfff4c5879569b45 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3647691Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/main@{#80867}
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Leszek Swirski authored
This is a reland of commit 3b251deb Annotates the perfetto proto include with nogncheck, because gn's header checker doesn't understand preprocessor directives. See https://gn.googlesource.com/gn/+/main/docs/reference.md#advice-on-fixing-problems Original change's description: > Reland "[test] Move tracing cctest to unittests" > > This is a reland of a7d6bf96 > > Added perfetto to unittests include_rules. > > Bug: v8:12781 > Change-Id: Iabf0e62abb1de879de21ba06fbd38f5432ee4f76 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3652295 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/main@{#80847} Bug: v8:12781 Change-Id: I886df9254d8fecd56f64110f04b1447937605b58 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3680299 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Clemens Backes authored
The macro list makes it difficult to impossible to deprecate individual methods (like the one receiving a {WasmModuleTieredUp} struct). Hence avoid the macro list and instead call the macro explicitly for each definition. R=cbruni@chromium.org Bug: v8:12899 Change-Id: I4139de7721c4a1450920c5be312e91e7478e6fa7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3667076Reviewed-by: -
Danil Somsikov authored
Bug: chromium:1240663 Change-Id: I133e3de012b08666c767478b8ad6fd7bf7c0fa35 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679098Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Auto-Submit: Danil Somsikov <dsv@chromium.org> Commit-Queue: Danil Somsikov <dsv@chromium.org> Cr-Commit-Position: refs/heads/main@{#80864}
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Clark DuVall authored
This will be useful for implementing crbug.com/1328448. Bug: v8:12916 Change-Id: Id22ae96f6c1f9b72ab09508dd1f6dc2d70f8b5d4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3677654 Commit-Queue: Clark DuVall <cduvall@chromium.org> Reviewed-by:
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Patrick Thier authored
Add a new late escape analysis pass to JS late optimizations. The new pass simply removes allocations that are not used (besides initializing stores to the object). Bug: v8:12200 Change-Id: I01fc6233cca2f369c77ff2116ed7c4da1a232d95 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3677298 Commit-Queue: Patrick Thier <pthier@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/main@{#80862}
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Junliang Yan authored
Change-Id: Ia6f542104887624d80eebd309f16b7da94159fc4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679978Reviewed-by:
Milad Farazmand <mfarazma@redhat.com> Commit-Queue: Junliang Yan <junyan@redhat.com> Cr-Commit-Position: refs/heads/main@{#80861}
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Dominik Inführ authored
After AssertNoTypedSlotsInFreeMemory being a CHECK for some time now to get more test coverage, turn this into a DCHECK again. This CL also renames the methods used by the sweeper to clear typed slots in free memory. It was previously called "invalid slots" but IMHO that could be a bit misleading, since this isn't about object slot invalidation (where we also filter slots) but only really about slots in free memory. Bug: v8:12760 Change-Id: I8f414be06207460531fa54189b9ef1be85f4ecb6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679578Reviewed-by:
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Clemens Backes authored
The method is already misleading, as with dynamic tiering the "top tier" is defined to be the same as the "baseline tier" (i.e. Liftoff). Hence the method does not do what you would expect it to do. Fixing it to wait for all functions to be compiled with TurboFan would result in a deadlock, if we do not also trigger tier-up of all functions. Hence remove the method. R=ahaas@chromium.org Bug: v8:12899 Change-Id: I4ba76febd796f6a9ad1252e6d73a72e569fd648c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3657436 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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jameslahm authored
This CL adds the serialization and deserialization for properties in function. And we only support fast properties in property array now. Bug: v8:11525 Change-Id: If0bb3fee400ca957009d046ed74b92d8192c2514 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3650675 Commit-Queue: 王澳 <wangao.james@bytedance.com> Reviewed-by:
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Leszek Swirski authored
This reverts commit 3b251deb. Reason for revert: Chrome build is still unhappy Original change's description: > Reland "[test] Move tracing cctest to unittests" > > This is a reland of a7d6bf96 > > Added perfetto to unittests include_rules. > > Bug: v8:12781 > Change-Id: Iabf0e62abb1de879de21ba06fbd38f5432ee4f76 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3652295 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/main@{#80847} Bug: v8:12781 Change-Id: I54d64a10e24bc913be9d2bd66c1908664665f484 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679519 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@{#80857}
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Andreas Haas authored
Bug: v8:12926 Change-Id: I16d4b7d3e2af638ceb4f635fb114762c2f352616 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3678209 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/main@{#80856}
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Leszek Swirski authored
Add support for LoadHandlers with the kConstantFromPrototype kind. With some dependency checks, this becomes a map check and constant load. Bug: v8:7700 Change-Id: I865eee7be4df9bd0ba56943814f601e3e950ed80 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3675101Reviewed-by:
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Manos Koukoutos authored
This CL fixes all spots where wasm Turbofan code did not satisfy the invariant that all nodes with effect outputs are connected to another node. Also, it enables the related verification for wasm code. Drive-by: - Simplify how stack checks are removed during loop unrolling. - Fix a test declaration in test-gc.cc. Change-Id: Id32af8584ba0ec281f4bf7757bd2915e6d8bf443 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3676862 Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Reviewed-by:
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Leszek Swirski authored
Bug: v8:12781 Change-Id: Icf3233b48718e117cc39289c511f9fd4d99c874d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679079Reviewed-by:
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Marja Hölttä authored
This makes the following use cases produce a visible error: - deserializing invalid data w/ d8 [previously broken] - error in the script embedded in the web snapshot - d8 can't read web snapshot files Bug: v8:11525,v8:12820 Change-Id: I40a993194f9992a40c877261ebf9882e018b669b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3672415Reviewed-by:
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Marja Hölttä authored
Bug: v8:11525 NoTry: True Change-Id: Idee38e400aec4aed1ebf9a25e0416002a05a7a2f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3679258Reviewed-by:
Darius Mercadier <dmercadier@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/main@{#80851}
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Maya Lekova authored
Bug: chromium:1329234 Change-Id: I59f171d3e2ab0c07f79f631971b1695b9f706600 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3677294Reviewed-by:
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Clemens Backes authored
Some tests disabled dynamic tiering in order to actually serialize TurboFan code. This makes the tests a bit simpler, but does not reflect real-world usage. This CL enables dynamic tiering in those tests and when needed executes the code until tier-up was observed. R=ahaas@chromium.org Bug: v8:12899 Change-Id: I34cb8cedbc5908d9e6ca09d56c51609d0c8b2d6a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3660262 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Marja Hölttä authored
Bug: v8:11525,v8:12820 Change-Id: I282ab058b6062513113059db171644466ef37870 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3667078Reviewed-by:
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Leszek Swirski authored
This is a reland of a7d6bf96 Added perfetto to unittests include_rules. Bug: v8:12781 Change-Id: Iabf0e62abb1de879de21ba06fbd38f5432ee4f76 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3652295Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/main@{#80847}
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Omer Katz authored
The abstractions in this CL include: 1) Using EvacuatePrologue to handle age mark updating in SemiSpaceNewSpace. 2) Using IsPromotionCandidate to check if a page contains the current age mark. 3) EnsureCurrentCapacity instead of Rebalance. 4) Delegate page promotions in mark-compact.cc to the NewSpace implementation. Bug: v8:12612 Change-Id: Ied83261d661a8e61a11bf33b1d7a2103ac99a853 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3644966 Commit-Queue: Omer Katz <omerkatz@chromium.org> Reviewed-by:
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Marja Hölttä authored
This reverts commit ff84cd04. Reason for revert: This CL had a commit from another branch which was supposed to land as a part of that CL ( https://chromium-review.googlesource.com/c/v8/v8/+/3672415/1 ), not this one. Going to reland a cleaned up version. Original change's description: > [rab/gsab] Fix ObjectSerializer > > Without this fix, the byte length for GSABs is probably serialized > wrong. A failing test is omitted since it would be pretty involved > (currently this code path is only hit with --stress-snapshot). > > Bug: v8:11111 > Change-Id: If7df98263cec9f82766c2fa6ba095b98b53a6fde > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3657431 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Marja Hölttä <marja@chromium.org> > Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> > Reviewed-by: Shu-yu Guo <syg@chromium.org> > Cr-Commit-Position: refs/heads/main@{#80780} Bug: v8:11111 Change-Id: I5fc3384484f6a8d2d6e40a404da0bf04167abc1d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3678838 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
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JialuZhang-intel authored
To eliminate unnecessary move instructions from register to fixed register. We check the fixed register hint for operands in move gaps when building LiveRanges. If a to_operand has a hint_operand (with fixed register), then set the hint_operand for from_operand too. This can avoid the register allocator ignore hint information about fixed register. Bug: v8:12909 Change-Id: I17f9afa484ee08de8ac1ab42945caba2c362fc9e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3669019Reviewed-by:
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