- 05 Sep, 2022 10 commits
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Jakob Linke authored
Bug: v8:7700 Change-Id: Ie940b85cc801de056ce3572b73669ba924aa03b4 Fixed: chromium:1359597 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872272 Auto-Submit: Jakob Linke <jgruber@chromium.org> Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/main@{#82967}
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Patrick Thier authored
With this CL shared strings can be externalized and external strings can be shared. The StringForwardingTable is used to delay the real transition to the next full GC. On the API side strings marked for externalization will look like externalized strings. Bug: v8:12957 Change-Id: I53b6509129bc5679c06bdf99421bdb41ea5d9082 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3849643Reviewed-by:
Shu-yu Guo <syg@chromium.org> Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Commit-Queue: Patrick Thier <pthier@chromium.org> Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#82966}
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wenqin.yang authored
This CL adds PKU support for V8 heap, but we will not enable PKU by default before adding bots that are able to test the PKU machinery. Bug: v8:13023 Change-Id: I0465604d56900536ad63311f119ea0324ebe4f2f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3793944Reviewed-by:
Omer Katz <omerkatz@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Wenqin Yang <wenqin.yang@intel.com> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Leszek Swirski authored
Inline DependOnStablePrototypeChain to iterate only those maps which share a validity cell with the receiver map. This resolves an issue where maps after the holder object violate the stability invariants, but doesn't require looking up what the actual holder is. Bug: v8:7700 Change-Id: Id06f0d13660f547e14dd25085799c0e6223c34b9 Fixed: chromium:1359215 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871298 Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Matthias Liedtke authored
This reverts commit e7bf8110. Reason for revert: Failing TSAN runs Original change's description: > [sandbox] Sandboxify ExternalString external pointers > > Bug: v8:10391 > Change-Id: I0f737e5adf6e4fd24f93436fa5680ff20c1536da > Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3757901 > Commit-Queue: Samuel Groß <saelo@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/main@{#82958} Bug: v8:10391 Change-Id: I384d49016b9494655866339a21dab60d451158a7 Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872271 Commit-Queue: Matthias Liedtke <mliedtke@chromium.org> Reviewed-by:
Samuel Groß <saelo@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by:
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Leszek Swirski authored
There was a missing write barrier for the saved registers and context in GeneratorStore. Add (deferred) write barriers for these, with some careful register reshuffling to minimise moves. Bug: v8:7700 Change-Id: Icf50e96adf3775785ce9b2c5a7566ecbbd1d63d9 Fixed: chromium:1359163 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870914Reviewed-by:
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Michael Achenbach authored
This ignores one of --assert-types and --stress-concurrent-inlining if used together. We already filter those from trials, but they also might get picked from // Flags lines in test cases. No-Try: true Bug: chromium:1359829 Change-Id: I7e46afb53bdbb0a871c7443a5a66a339046eb3de Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871195Reviewed-by:
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Tom Anderson authored
Bug: chromium:1355871 Fixed: chromium:1359712 No-Tree-Checks: true Change-Id: I01e35ec6c35d82608797d8ae222d79a125ca5758 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872346 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Auto-Submit: Thomas Anderson <thomasanderson@chromium.org> Reviewed-by:
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/aebd733..a412eb2 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/eb16430..a089281 Rolling v8/third_party/fuchsia-sdk/sdk: version:9.20220902.0.1..version:9.20220902.1.1 R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com Change-Id: Ied5248bff1159fc65f61bfc512464e356578840b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872519 Bot-Commit: 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/main@{#82959}
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Samuel Groß authored
Bug: v8:10391 Change-Id: I0f737e5adf6e4fd24f93436fa5680ff20c1536da Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3757901 Commit-Queue: Samuel Groß <saelo@chromium.org> Reviewed-by:
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- 03 Sep, 2022 1 commit
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/15f3aed..aebd733 Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/734683a..18d22db Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx/+log/84f0693..369cbf3 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/8cdc635..eb16430 Rolling v8/third_party/fuchsia-sdk/sdk: version:9.20220831.2.1..version:9.20220902.0.1 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/e0c2881..0a22859 R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com Change-Id: I01a1df8f6fe1db74fad773480edb5801f2851219 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872510 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@{#82957}
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- 02 Sep, 2022 29 commits
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Leon Bettscheider authored
This CL makes SelectGarbageCollector choose MinorMC to finalize minor incremental marking if the allocation space is new space. Bug: v8:13012 Change-Id: I0125d956842d83683cf3b1c5999de0e10a43dee5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871074 Commit-Queue: Leon Bettscheider <bettscheider@google.com> Reviewed-by:
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Leon Bettscheider authored
This CL exclusively activates ScavengeTaskObserver, used by Scavenger and atomic MinorMC, or MinorMCTaskObserver, used by concurrent MinorMC. Bug: v8:13012 Change-Id: I313b0cbe250828cc76d7d4b25e9abb457315112e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871295 Commit-Queue: Leon Bettscheider <bettscheider@google.com> Reviewed-by:
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Ilya Rezvov authored
This is a reland of commit 5a318a23 Original change's description: > Port Generic JS-Wasm Wrapper for arm64 > > Bug: v8:10701 > Change-Id: I2014f8994c74379663998e2560d1d51b98a4a9a6 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3811834 > Reviewed-by: Jakob Linke <jgruber@chromium.org> > Commit-Queue: Ilya Rezvov <irezvov@chromium.org> > Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> > Cr-Commit-Position: refs/heads/main@{#82915} Bug: v8:10701 Change-Id: Ic0ac1478759150a5cc7e75d1a8e4e465e0d48233 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3869197Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Ilya Rezvov <irezvov@chromium.org> Reviewed-by:
Deepti Gandluri <gdeepti@chromium.org> Cr-Commit-Position: refs/heads/main@{#82954}
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Patrick Thier authored
When internalizing cached external string that are not in-place internalizable, there is an optimization that avoids copying the contents of the string. This optimization doesn't work when the string table is shared, as it leaves strings in a partly initialized state that can be accessed in a concurrent environment. Bug: v8:12007 Change-Id: I49fcbb232893c87d065af114546a6f1a15471016 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870469 Auto-Submit: Patrick Thier <pthier@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by:
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Manos Koukoutos authored
Change-Id: Ie36ef2b934b4ea1fd256175748daac73246be826 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870467Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Auto-Submit: Manos Koukoutos <manoskouk@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/main@{#82952}
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Dominik Inführ authored
When aborting compaction on a page, slots need to be recorded in the non-evacuated part. Now that maps might be recorded as well, slots need to be recorded in the map word as well. Bug: chromium:1359294, v8:12578 Change-Id: I91e4a98ae2951d814d4b50e527b34d8e54d55434 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871297 Commit-Queue: Omer Katz <omerkatz@chromium.org> Reviewed-by:
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Shu-yu Guo authored
DoubleToInteger, which corresponds to the ToIntegerOrInfinity AO in ecma262, never returns -0. Currently there's a bug as std::ceil can return -0. Bug: v8:10271 Change-Id: Id5e7d040ef9d186462022dc96052d7920be6ebed Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3869196 Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by:
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Clemens Backes authored
A minor refactoring to call a static method instead of just creating an instance in order to do the work. This also makes it easier to later add methods to process all feedback before dumping profile information. R=jkummerow@chromium.org Bug: v8:13209 Change-Id: I157357753b3a1cff83df426660501c43959937b9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870468 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Leon Bettscheider authored
This CL fixes a regression caused by https://crrev.com/c/3865147. Bug: v8:13012 Change-Id: I2a0b89965a305197b499044ea7b10285a763dc4d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3871296 Commit-Queue: Leon Bettscheider <bettscheider@google.com> Reviewed-by:
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Jakob Linke authored
The `target` field of call feedback may be stored in the feedback vector without protection by generated code (see TryInitializeAsMonomorphic). We thus can't assume a memory fence exists when creating the ref, switch to TryMakeRef instead. Bug: v8:7790,v8:12876 Change-Id: I428b00b19a417e818c315f1cf9ee62d19f0747d7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3867728 Auto-Submit: Jakob Linke <jgruber@chromium.org> Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
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George Wort authored
Add BitcastWordToTagged and BitcastWordToTagged to CannotObserveStoreField in StoreStoreElimination to allow more stores to be eliminated. Also add the use properties in CannotObserveStoreField so that future nodes don't block opportunities. Improves Speedometer2 by 0.16% and 0.12% on a Cortex-A55 and a Neoverse-N1 machine respectively, with Preact seeing +0.8% on both. Change-Id: I0cfe887ec4c0c435dbb0f9d8dc3da4bfcdabc265 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865560Reviewed-by:
Patrick Thier <pthier@chromium.org> Commit-Queue: George Wort <george.wort@arm.com> Reviewed-by:
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George Wort authored
Fixes the use of v8_enable_fast_mksnapshot on platforms that aren't ia32 or x64. This was introduced by https://chromium-review.googlesource.com/c/v8/v8/+/3863281 Change-Id: I0d18c2d16dae4937baa40ee336d8c246a8b77889 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3867408Reviewed-by:
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Victor Gomes authored
This makes it clear that the constructors are to be used for a basic block that starts a loop or a basic block that starts an exception handler. Bug: v8:7700 Change-Id: Ic58dd80f223e45b4e5cf5da6e78e989ba18d55a3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870916 Auto-Submit: Victor Gomes <victorgomes@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Clemens Backes authored
Move the logic to negate a flag properly if the name starts with '!' to the general {FlagName} helper. This fixes an otherwise weird formatting. Before: # Contradictory flag implications from --!liftoff and --wasm-speculative-inlining for flag --wasm-dynamic-tiering. After: # Contradictory flag implications from --no-liftoff and --wasm-speculative-inlining for flag --wasm-dynamic-tiering. R=tebbi@chromium.org Change-Id: I21236b4ff338aa4d2ddd0872f85e2362ef8dc813 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870915 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: -
Omer Katz authored
Bug: v8:12612, v8:13145 Change-Id: Ib44d3eb15f05aebe1c165221507517d9df472142 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870919 Commit-Queue: Omer Katz <omerkatz@chromium.org> Reviewed-by:
Almothana Athamneh <almuthanna@chromium.org> Cr-Commit-Position: refs/heads/main@{#82942}
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Dominik Inführ authored
We used to scan the full heap of all clients for pointers into the shared heap. Now that the OLD_TO_SHARED remembered set is considered complete, we don't need to scan objects in the old generation anymore. Instead we just need to check slots in the OLD_TO_SHARED remembered set. Since we don't have write barriers for objects guaranteed to be in new space, we still need to scan objects in the young generation. Bug: v8:11708 Change-Id: I1121f90ee63521c9141431f4cb31973796f1a67c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865561Reviewed-by:
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Marja Hölttä authored
Now it's "source, target" in all places. Change-Id: I6ce943214c79467aca4e3b62c3376921e206842a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870917 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
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Michael Achenbach authored
Add logic to drop cyclic contradictory flags from correctness-fuzzing command lines. Add the currently known biggest offenders. Without this, the correctness fuzzing harness runs into a CHECK failure during smoke testing, when attempting to pass cyclic flags to d8. It fails fast, but uselessly burns fuzzing time. This change drops one of the known cyclic flags instead to make the test run still useful. The precedence is right to left like in the V8 test framework. Additionally on Clusterfuzz, all crashes during smoke testing are deduped as one crash report. We don't know if there are other problems before this one is fixed/hidden. No-Try: true Bug: chromium:1330303 Change-Id: I06cbb4655cd3cf467f5cce6f84dba653834ca72e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865562Reviewed-by:
Alexander Schulze <alexschulze@chromium.org> Cr-Commit-Position: refs/heads/main@{#82939}
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Milad Fa authored
Port 247b33e9 R=gdeepti@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com BUG= LOG=N Change-Id: Iaedf6d6579e8224ba90b19b70ed040b23b85b2b0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3868835Reviewed-by:
Junliang Yan <junyan@redhat.com> Reviewed-by:
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Matthias Liedtke authored
The intention is to be restrictive for now: modules should not start to depend on this subtyping while the stringref type hierarchy question is being settled (see https://github.com/WebAssembly/stringref/issues/3 for details). Bug: v8:12868 Change-Id: I0140e72f92550c88393dc84bb1fa3ce65840a048 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865019 Commit-Queue: Matthias Liedtke <mliedtke@chromium.org> Reviewed-by:
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Matthias Liedtke authored
Bug: v8:7748 Change-Id: Ibb43799319f8032d69adcaaeebb48ec8e4e6078c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3869146 Commit-Queue: Matthias Liedtke <mliedtke@chromium.org> Reviewed-by:
Manos Koukoutos <manoskouk@chromium.org> Cr-Commit-Position: refs/heads/main@{#82936}
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Victor Gomes authored
At the start of the graph builder, we add merge states to exception handlers basic block with ExceptionPhis (normal phis with no input, but with an interpreter register "owner"). Every Node that can throw, can also lazy deopt, so we use the lazy deopt IFS to recover the exception phi values in a trampoline before jumping to the exception catch block. Bug: v8:7700 Change-Id: I62fe7f19ce5e89c3df645224ea62f9fc2798207c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865865Reviewed-by:
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Matthias Liedtke authored
This change adds support for defining globals whose value is imported and not defined inline. This was already possible for importing globals from other modules, now it is also supported for non-global values, e.g. values created by a wasm function and exported to JS. Bug: v8:7748 Change-Id: I4fe22a7ab33b431cb731458900c0f332dff8b8f7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865554Reviewed-by:
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Clemens Backes authored
Instead of implementing our own shared mutex, use std::shared_mutex, which does not have the problem of deadlocking when interrupted by signals (see https://crbug.com/v8/12037). This is on Mac only, for now. If this fixes the regressions, we can switch all systems to std::shared_mutex. R=ishell@chromium.org CC=dmercadier@chromium.org Bug: v8:12037, v8:13256, chromium:1358856 Change-Id: Ie4be7cc5431905ca1e4f74809168eb6a9f584d28 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870465 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Omer Katz authored
Bug: v8:12612 Change-Id: I28a574435646073d65e6fe1e746267ffb0eaa01d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3864083 Commit-Queue: Omer Katz <omerkatz@chromium.org> Reviewed-by:
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Leszek Swirski authored
ResumeGenerator is semantically a successor of SuspendGenerator (for reasoning about liveness), but operationally it's a successor of SwitchOnGeneratorState. This means that the jump to ResumeGenerator will always create a new basic block, even if the SuspendGenerator was dead. This causes problems if we made other assumptions on liveness based on the semantics; in particular, we assume that JumpLoop is dead if the loop header is dead (thanks to loop irreducibility). SwitchOnGeneratorState breaks irreducibility, and this manifests as the JumpLoop being alive and trying to jump to a dead header. Since this is a special case, and loops are otherwise irreducible, we can also fix it with a special case; namely, MarkBytecodeDead now has a special case for SuspendGenerator which manually advances the iterator and kills the ResumeGenerator. Bug: v8:7700 Change-Id: Ice162f061e7ba1dda7ceb4f6fe9234889655b417 Fixed: v8:13250 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865556Reviewed-by:
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Manos Koukoutos authored
Bug: v8:12868 Change-Id: Ia70ddb1fb25bc1f14259d14a8a9f614de7d8cd52 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865558Reviewed-by:
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Leszek Swirski authored
Check the function for TF code before finalizing a maglev compilation, so that we don't accidentally overwrite the higher tier. Bug: v8:7700 Change-Id: I20eb4e25f3bf2710b6e65f9d866cad143e77943d Fixed: chromium:1359114 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870464Reviewed-by:
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Liu Yu authored
Besides, fix a error in GetMemOp. Port commit 247b33e9 Change-Id: I34cf0d22870f438fb6bfcd67ef50ec254fb92608 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3869758 Auto-Submit: Liu Yu <liuyu@loongson.cn> Reviewed-by:
Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Cr-Commit-Position: refs/heads/main@{#82928}
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