- 13 May, 2022 1 commit
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Clemens Backes authored
Now that we require C++17 support, we can just use the standard static_assert without message, instead of our STATIC_ASSERT macro. R=leszeks@chromium.org Bug: v8:12425 Change-Id: I1d4e39c310b533bcd3a4af33d027827e6c083afe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3647353Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Hannes Payer <hpayer@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/main@{#80524}
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- 10 Feb, 2022 1 commit
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Joyee Cheung authored
Handle the case of nested super() by checking if the class scope contains a private brand. In this case the ContextScope chain is different from the actual context chain so this added back the AddPrivateBrand() runtime function but with the additional step of walking the context chain to get the correct class context that will be stored as the value of the brand property for the debugger. Bug: v8:12354 Change-Id: Ieeb9b9d6372bfbb1a39c4c2dc9e9848e9109f02a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3275137Reviewed-by: Shu-yu Guo <syg@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Commit-Queue: Joyee Cheung <joyee@igalia.com> Cr-Commit-Position: refs/heads/main@{#79032}
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- 28 Jan, 2022 1 commit
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Victor Gomes authored
Change-Id: I7cde42eb5c3a2df81950cc622dd9b3fa3f74caa3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422634 Auto-Submit: Victor Gomes <victorgomes@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/main@{#78832}
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- 27 Jan, 2022 4 commits
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Adam Klein authored
Change-Id: I9c3319bb956f4fca41bd3ef8e03a7bd7424f1a70 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3421845Reviewed-by: Shu-yu Guo <syg@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/main@{#78825}
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Adam Klein authored
Change-Id: I81e0823b4604389c42726631d7314cbf087db77a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3421513Reviewed-by: Shu-yu Guo <syg@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/main@{#78823}
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Milad Fa authored
This fixes the `unused variable` error in release builds with gcc. Change-Id: I637dac3968e768960035960b846b2783f92571d2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3421511Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/main@{#78822}
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Victor Gomes authored
- It changes ContextSlotIndex from static to non-static. - Updates ContextSlotIndex and ScriptContextTable::Lookup to use handles, since it is necessary for the NameToIndexHashTable::Add - Adds a NameToIndexHashTableLookup to CSA. - Renames LocalNamesIterator to LocalNamesRange and iterates the hashtable when local names are not inlined. Bug: v8:12315 Change-Id: I2c8c933002fe73f4def145bc207825823262d743 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3406751Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#78818}
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- 24 Jan, 2022 1 commit
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Joyee Cheung authored
This is a reland of 91f08378 When the class scope does not need a context, the deserialized outer scope of the initializer scope would not be the class scope, and we should not and do not need to use it to fix up the allocation information of the context-allocated variables. The original patch did not consider this case and resulted in a regression when we tried to reparse the initializer function to look for destructuring assignment errors. This fixes the regression by not deserializing the class scope that's going to be reparsed, and using the positions of the scopes to tell whether the scope info matches the reparsed scope and can be used to fix up the allocation info. Original change's description: > [class] implement reparsing of class instance member initializers > > Previously, since the source code for the synthetic class instance > member initializer function was recorded as the span from the first > initializer to the last initializer, there was no way to reparse the > class and recompile the initializer function. It was working for > most use cases because the code for the initializer function was > generated eagarly and it was usually alive as long as the class was > alive, so the initializer wouldn't normally be lazily parsed. This > didn't work, however, when the class was snapshotted with > v8::SnapshotCreator::FunctionCodeHandling::kClear, > becuase then we needed to recompile the initializer when the class > was instantiated. This patch implements the reparsing so that > these classes can work with FunctionCodeHandling::kClear. > > This patch refactors ParserBase::ParseClassLiteral() so that we can > reuse it for both parsing the class body normally and reparsing it > to collect initializers. When reparsing the synthetic initializer > function, we rewind the scanner to the beginning of the class, and > parse the class body to collect the initializers. During the > reparsing, field initializers are parsed with the full parser while > methods of the class are pre-parsed. > > A few notable changes: > > - Extended the source range of the initializer function to cover the > entire class so that we can rewind the scanner to parse the class > body to collect initializers (previously, it starts from the first > field initializer and ends at the last initializer). This resulted > some expectation changes in the debugger tests, though the > initializers remain debuggable. > - A temporary ClassScope is created during reparsing. After the class > is reparsed, we use the information from the ScopeInfo to update > the allocated indices of the variables in the ClassScope. > > Bug: v8:10704 > Change-Id: Ifb6431a1447d8844f2a548283d59158742fe9027 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2988830 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Joyee Cheung <joyee@igalia.com> > Cr-Commit-Position: refs/heads/main@{#78299} Bug: chromium:1278086, chromium:1278085, v8:10704 Change-Id: Iea4f1f6dc398846cbe322adc16f6fffd6d2dfdf3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3325912Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Joyee Cheung <joyee@igalia.com> Cr-Commit-Position: refs/heads/main@{#78745}
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- 17 Jan, 2022 1 commit
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Victor Gomes authored
This is a reland of f605d778 Adds a GC safe (using handles) and unsafe versions of the iterator. V8HeapExplorer needs an unsafe one, since it does not allow the creation of handles. Original change's description: > [runtime] Adds LocalNameIterator > > ScopeInfo will contain either inlined (array) local names or > a hash table (names => index) containing the local names. > > We abstract iteration with LocalNameIterator and remove > ContextLocalName since accessing a local name by index in > the hash table would be expensive. > > This CL only implements the iterator for the array. > > Bug: v8:12315 > Change-Id: I2c62802652fca1cf47815ce8768a3f7487f2c39f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3386603 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@chromium.org> > Cr-Commit-Position: refs/heads/main@{#78623} Bug: v8:12315 Change-Id: I6288a08b9c342cd3a9cabcb621c40bb44c08c9c4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3394706Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#78653}
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- 14 Jan, 2022 3 commits
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Leszek Swirski authored
This reverts commit f605d778. Reason for revert: Segfaults: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20gc%20stress/36908/overview Original change's description: > [runtime] Adds LocalNameIterator > > ScopeInfo will contain either inlined (array) local names or > a hash table (names => index) containing the local names. > > We abstract iteration with LocalNameIterator and remove > ContextLocalName since accessing a local name by index in > the hash table would be expensive. > > This CL only implements the iterator for the array. > > Bug: v8:12315 > Change-Id: I2c62802652fca1cf47815ce8768a3f7487f2c39f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3386603 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@chromium.org> > Cr-Commit-Position: refs/heads/main@{#78623} Bug: v8:12315 Change-Id: Ibabe231f4357a3dd02d24b89847d579b83867a1a No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3386385 Auto-Submit: Leszek Swirski <leszeks@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Owners-Override: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/main@{#78625}
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Victor Gomes authored
ScopeInfo will contain either inlined (array) local names or a hash table (names => index) containing the local names. We abstract iteration with LocalNameIterator and remove ContextLocalName since accessing a local name by index in the hash table would be expensive. This CL only implements the iterator for the array. Bug: v8:12315 Change-Id: I2c62802652fca1cf47815ce8768a3f7487f2c39f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3386603Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#78623}
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Victor Gomes authored
ScopeInfo will contain either inlined (array) local names or a hash table (names => index) containing the local names. If we have the local names inlined, we should save the class variable context slot index. If we have a hash table instead, we should save the class variable offset in the internal hash table storage. Bug: v8:12315 Change-Id: Ifd9ae4f285d11fc034e8560c8558038b38a474fb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3386599Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#78621}
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- 16 Nov, 2021 1 commit
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Ng Zhi An authored
Bug: v8:12244,v8:12245 Change-Id: Id74afa611b2b8556ef86c715497b6daddc8ea7a0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3276931Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Omer Katz <omerkatz@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/main@{#77928}
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- 09 Nov, 2021 1 commit
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Ng Zhi An authored
Bug: v8:12244,v8:12245 Change-Id: I1ec0d96b645afa9bbda670918ce57be3698f50ef Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3265684 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/main@{#77804}
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- 26 Oct, 2021 1 commit
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Camillo Bruni authored
- Check that we only store internalized strings for context-allocated function names - Fix call to FunctionContextSlotIndex from V8HeapExplorer that could end up passing in a non-internalized string Bug: chromium:1255105 Change-Id: Ie8bd5577bd0086241d47991fbe285f5d64ae3d4a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3245113Reviewed-by: Kim-Anh Tran <kimanh@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/main@{#77540}
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- 12 Oct, 2021 1 commit
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Toon Verwaest authored
This guarantees that if it's context-allocated, it'll be the first slot in the context. That in turn allows us to drop a special index on scope-info pointing at the receiver entry; once we update arguments object handling to take the receiver possibly being there into account. Change-Id: Idfd06cf172e6905b02c8d17a962382e2a9ea0874 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211999 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/main@{#77360}
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- 08 Oct, 2021 1 commit
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Toon Verwaest authored
By adding the receiver variable to the locals we'll automatically create a proper scope info entry. The receiver is allocated before we allocate other locals anyway, so it'll be properly allocated. Change-Id: Ic1d57257d26473f3a50cce27c335565bcb6e06c3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211995Reviewed-by: Camillo Bruni <cbruni@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/main@{#77302}
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- 07 Jul, 2021 1 commit
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Camillo Bruni authored
Bug: chromium:1011762, chromium:1061857 Change-Id: I2b2661023215b7b2d05067e6f9fb894ad6274acd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2617084 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#75600}
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- 01 Jul, 2021 1 commit
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Peter Kasting authored
There are still a few cases remaining that seem more controversial; I'll upload those separately. Bug: chromium:1066980 Change-Id: Iabbaf23f9bbe97781857c0c589f2b3db685dfdc2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2994804 Commit-Queue: Peter Kasting <pkasting@chromium.org> Auto-Submit: Peter Kasting <pkasting@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#75494}
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- 21 May, 2021 1 commit
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Benedikt Meurer authored
Trivial follow up fix for https://crrev.com/c/1946349 which fixes the call to length on a half-initialized ScopeInfo. ScopeInfo::length() looks at the uninitialized fields (i.e. in case of ScopeInfo for module scopes) and would thus crash. Bug: chromium:1027475, v8:9938, chromium:1072939 Change-Id: I7e4e81edfbbde25063ab40b8e7807fd70625a8a3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2910773 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Simon Zünd <szuend@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/master@{#74703}
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- 19 May, 2021 1 commit
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Luis Fernando Pardo Sixtos authored
Refactoring ScopeInfo::ContextSlotIndex so it accepts a pointer to LookupResult instead of references to the individual arguments. Change-Id: I52bc7800f14e790bd4788c213ab0eff2354ab20e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2900837 Commit-Queue: Luis Fernando Pardo Sixtos <lpardosixtos@microsoft.com> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#74683}
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- 26 Apr, 2021 1 commit
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Leszek Swirski authored
It's unfortunate that there is both a LocalIsolate template parameter, and an actual LocalIsolate class. Clean this up by renaming the template parameters to IsolateT Change-Id: Iecefc3eca5aeb7bbd21e78818b90f9e75cdff10f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2846880 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#74173}
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- 06 Apr, 2021 1 commit
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Shu-yu Guo authored
This is a reland of e28dadc2 The original failure was due to a stale Win32 bot. The reland failure was due to idempotent task deduplication returning the exact same failure. See crbug/1196064 Original change's description: > [ptr-cage] Rename IsolateRoot to PtrComprCageBase > > Currently, IsolateRoot is both the address of the Isolate root and the > base address of the pointer compression reservation. This CL teases the > two uses apart by renaming IsolateRoot to PtrComprCageBase. > > - In addition to V8_COMPRESS_POINTERS, add a > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE). > > - Rename GetIsolate* helpers to GetPtrComprCageBase. When > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as > aliases to GetPtrComprCageBase. > > - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment. > > Bug: v8:11460 > Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672 > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Auto-Submit: Shu-yu Guo <syg@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#73790} Bug: v8:11460 No-Try: true Tbr: ishell@chromium.org Tbr: rmcilroy@chromium.org Change-Id: Id69311cf3267ebe1297fff159de0be48b15b65a3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806546Reviewed-by: Shu-yu Guo <syg@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#73795}
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- 05 Apr, 2021 4 commits
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Shu-yu Guo authored
This reverts commit 15c78b45. Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32277/overview Original change's description: > Reland "[ptr-cage] Rename IsolateRoot to PtrComprCageBase" > > This is a reland of e28dadc2 > > Relanding to see if Win32 rel failures from > https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/overview > were infra flakes. Could not repro on try bots. > > Original change's description: > > [ptr-cage] Rename IsolateRoot to PtrComprCageBase > > > > Currently, IsolateRoot is both the address of the Isolate root and the > > base address of the pointer compression reservation. This CL teases the > > two uses apart by renaming IsolateRoot to PtrComprCageBase. > > > > - In addition to V8_COMPRESS_POINTERS, add a > > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE). > > > > - Rename GetIsolate* helpers to GetPtrComprCageBase. When > > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as > > aliases to GetPtrComprCageBase. > > > > - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment. > > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672 > > Reviewed-by: Igor Sheludko <ishell@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > No-Try: true > Bug: v8:11460 > Tbr: ishell@chromium.org > Tbr: rmcilroy@chromium.org > Change-Id: I0a8c3a48999d6737c8c64d2c2703607f14f3fdd0 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806169 > Reviewed-by: Shu-yu Guo <syg@chromium.org> > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Cr-Commit-Position: refs/heads/master@{#73792} Bug: v8:11460 Change-Id: Ifee92d622c43a91c15f45ef94ff739237bd2024b No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806545 Auto-Submit: Shu-yu Guo <syg@chromium.org> Reviewed-by: Shu-yu Guo <syg@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#73793}
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Shu-yu Guo authored
This is a reland of e28dadc2 Relanding to see if Win32 rel failures from https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/overview were infra flakes. Could not repro on try bots. Original change's description: > [ptr-cage] Rename IsolateRoot to PtrComprCageBase > > Currently, IsolateRoot is both the address of the Isolate root and the > base address of the pointer compression reservation. This CL teases the > two uses apart by renaming IsolateRoot to PtrComprCageBase. > > - In addition to V8_COMPRESS_POINTERS, add a > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE). > > - Rename GetIsolate* helpers to GetPtrComprCageBase. When > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as > aliases to GetPtrComprCageBase. > > - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment. > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672 > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> No-Try: true Bug: v8:11460 Tbr: ishell@chromium.org Tbr: rmcilroy@chromium.org Change-Id: I0a8c3a48999d6737c8c64d2c2703607f14f3fdd0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806169Reviewed-by: Shu-yu Guo <syg@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#73792}
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Francis McCabe authored
This reverts commit e28dadc2. Reason for revert: failed test262 tests;; see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/steps?succeeded=true&debug=false Original change's description: > [ptr-cage] Rename IsolateRoot to PtrComprCageBase > > Currently, IsolateRoot is both the address of the Isolate root and the > base address of the pointer compression reservation. This CL teases the > two uses apart by renaming IsolateRoot to PtrComprCageBase. > > - In addition to V8_COMPRESS_POINTERS, add a > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE). > > - Rename GetIsolate* helpers to GetPtrComprCageBase. When > V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as > aliases to GetPtrComprCageBase. > > - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment. > > Bug: v8:11460 > Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672 > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Auto-Submit: Shu-yu Guo <syg@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#73790} Bug: v8:11460 Change-Id: I19d0e28194fcdb28e89f129a7694ca3fe29fa17a No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806168 Auto-Submit: Francis McCabe <fgm@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/master@{#73791}
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Shu-yu Guo authored
Currently, IsolateRoot is both the address of the Isolate root and the base address of the pointer compression reservation. This CL teases the two uses apart by renaming IsolateRoot to PtrComprCageBase. - In addition to V8_COMPRESS_POINTERS, add a V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE). - Rename GetIsolate* helpers to GetPtrComprCageBase. When V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as aliases to GetPtrComprCageBase. - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment. Bug: v8:11460 Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672 Commit-Queue: Shu-yu Guo <syg@chromium.org> Auto-Submit: Shu-yu Guo <syg@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#73790}
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- 15 Mar, 2021 1 commit
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Clemens Backes authored
asm validation and translation to wasm is disabled in no-wasm builds, hence remove respective detection and marking of scopes and functions. R=verwaest@chromium.org Bug: v8:11238 Change-Id: I2ac8a84024fa37a0c5896a0f85ea4beea4d93137 Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2757689Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#73410}
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- 08 Mar, 2021 1 commit
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Seth Brenith authored
This change relands the last part of https://crrev.com/c/2601880 . ScopeInfo has a vestigial 'length' field from when it used to be a FixedArray. This change removes that field, which saves some memory. More specifically: - Make ScopeInfo inherit from HeapObject, not FixedArrayBase which supplied the 'length' field. - Change FactoryBase::NewScopeInfo to allocate the updated object shape. It maintains the existing behavior of filling the newly-allocated object with undefined, even though that's not a valid ScopeInfo and further initialization is required. - Change a few length computations to use HeapObject::kHeaderSize rather than FixedArray::kHeaderSize. - Remove an unnecessary heap verifier function. Change-Id: I9b3980157568fdb0402fa31660949966b401fd31 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2733037Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#73278}
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- 03 Mar, 2021 1 commit
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Seth Brenith authored
This is a partial reland of https://crrev.com/c/2601880 . In preparation for ScopeInfo not being a FixedArrayBase, this change privatizes the FixedArray-style functions that provide access to ScopeInfo fields by index, and moves them from scope-info-inl.h to scope-info.cc. Those functions are still used pretty heavily during initialization (ScopeInfo::Create, etc.), but at least we can avoid presenting them to the rest of the world. This change also introduces a new length() function in ScopeInfo which hides the one inherited from FixedArrayBase and computes the ScopeInfo's length based on its flags, so that there are no remaining readers of the 'length' field. Change-Id: I609754010723b679e5cf00f386020faaab84c17a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718275 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#73151}
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- 24 Feb, 2021 1 commit
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Seth Brenith authored
Currently, some ScopeInfo fields are defined as indexed fields with a length of either one or zero, because the field might be present or it might not. Based on comments in https://crrev.com/c/v8/v8/+/2601880 , this strategy is not sustainable and we need a better way to represent optional fields so that we don't have to pass zero when accessing their only element. This change is a proposal to fix that problem. Syntax: I'm proposing using a question mark because TypeScript does, and Torque syntax looks somewhat like TypeScript. I don't feel strongly about this though, and I'm open to other suggestions. field_name?[condition_expression]: FieldType; Internal Torque compiler representation: Internally, I've updated the Torque compiler to still treat these fields as indexed, but with an extra flag saying they're optional. When getting a LocationReference for a field access expression on an optional field, Torque produces a Slice like it would for any other indexed field and subsequently calls AtIndex(0) to get a Reference. AtIndex can crash the process if the index is out of bounds (which is good), so some other parts of the Torque compiler need minor adjustments so that it doesn't take references to optional fields unless it actually needs them. Initialization: This proposal doesn't include any changes to initialization logic, so an optional field can still be initialized using '...' and an iterator. Perhaps we could introduce an Optional<T> struct for prettier initialization in a future change. Bug: v8:7793 Change-Id: I37649495f4c259e685261f53e4cf2859da66a31f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2706306 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#73018}
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- 19 Feb, 2021 1 commit
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Seth Brenith authored
This reverts commit f731e13f. Reason for revert: perf regressions, chromium:1179757 Original change's description: > Remove 'length' field from ScopeInfo > > ScopeInfo has a vestigial 'length' field from when it used to be a > FixedArray. This change removes that field, which saves some memory. > > More specifically: > > - Make ScopeInfo inherit from HeapObject, not FixedArrayBase which > supplied the 'length' field. > - Privatize the FixedArray-style functions that provide access to > ScopeInfo fields by index, and move them from scope-info-inl.h to > scope-info.cc. Those functions are still used pretty heavily during > initialization (ScopeInfo::Create, etc.), but at least we can avoid > presenting them to the rest of the world. > - Change FactoryBase::NewScopeInfo to allocate the updated object shape. > It maintains the existing behavior of filling the newly-allocated > object with undefined, even though that's not a valid ScopeInfo and > further initialization is required. > - Move part of AccessorAssembler::ScriptContextTableLookup into a new > Torque macro, because it used to rely on casting ScopeInfo to > FixedArrayBase. > - In V8HeapExplorer::AddEntry, don't claim that ScopeInfo objects are > arrays. I think it makes more sense to list them under "(system)" in > the dev tools, like most other V8 internal types. > > Bug: v8:8952 > Change-Id: I8278e3a90027d4409f0d268da0fe7080754c6b8c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2601880 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> > Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> > Reviewed-by: Mythri Alle <mythria@chromium.org> > Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> > Cr-Commit-Position: refs/heads/master@{#72830} Bug: v8:8952 Change-Id: I00a69da79e5ac6aaae4436a41ce773ae014cc775 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2706086 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Auto-Submit: Seth Brenith <seth.brenith@microsoft.com> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/master@{#72855}
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- 17 Feb, 2021 1 commit
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Seth Brenith authored
ScopeInfo has a vestigial 'length' field from when it used to be a FixedArray. This change removes that field, which saves some memory. More specifically: - Make ScopeInfo inherit from HeapObject, not FixedArrayBase which supplied the 'length' field. - Privatize the FixedArray-style functions that provide access to ScopeInfo fields by index, and move them from scope-info-inl.h to scope-info.cc. Those functions are still used pretty heavily during initialization (ScopeInfo::Create, etc.), but at least we can avoid presenting them to the rest of the world. - Change FactoryBase::NewScopeInfo to allocate the updated object shape. It maintains the existing behavior of filling the newly-allocated object with undefined, even though that's not a valid ScopeInfo and further initialization is required. - Move part of AccessorAssembler::ScriptContextTableLookup into a new Torque macro, because it used to rely on casting ScopeInfo to FixedArrayBase. - In V8HeapExplorer::AddEntry, don't claim that ScopeInfo objects are arrays. I think it makes more sense to list them under "(system)" in the dev tools, like most other V8 internal types. Bug: v8:8952 Change-Id: I8278e3a90027d4409f0d268da0fe7080754c6b8c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2601880Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#72830}
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- 11 Feb, 2021 1 commit
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Seth Brenith authored
Torque generates runtime accessor member functions for most class fields that are defined in .tq files, but fields with struct types are currently omitted. This change adds those accessors. As an example, if a .tq file defines the following: struct InternalClassStructElement { a: Smi; b: Smi; } class InternalClassWithStructElements extends HeapObject { const count: Smi; entries[count]: InternalClassStructElement; } Then the following accessors are generated to get and set each struct field within the 'entries' field: inline int entries_a(int i) const; inline void set_entries_a(int i, int value); inline int entries_b(int i) const; inline void set_entries_b(int i, int value); Bug: v8:7793 Change-Id: Ia40b5918e9d09f53ad8e78bc33f8629b8d6a79fe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2676926Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#72662}
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- 20 Jan, 2021 1 commit
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Seth Brenith authored
This change adds Torque field definitions for ScopeInfo and begins to use the Torque-generated accessors in some places. It does not change the in-memory layout of ScopeInfo. Torque compiler changes: - Fix an issue where the parser created constexpr types for classes based on the class name rather than the `generates` clause. This meant that generated accessors referred to the imaginary type HashTable rather than the real C++ type FixedArray. - Don't pass Isolate* through the generated runtime functions that implement Torque macros. Maybe we'll need it eventually, but we don't right now and it complicates a lot of things. - Don't emit `kSomeFieldOffset` if some_field has an unknown offset. Instead, emit a member function `SomeFieldOffset()` which fetches the slice for some_field and returns its offset. - Emit an `AllocatedSize()` member function for classes which have complex length expressions. It fetches the slice for the last field and performs the multiply&add to compute the total object size. - Emit field accessors for fields with complex length expressions, using the new offset functions. - Fix a few minor bugs where Torque can write uncompilable code. With this change, most code still treats ScopeInfo like a FixedArray, so I would like to follow up with some additional changes: 1. Generate a GC visitor for ScopeInfo and use it 2. Generate accessors for struct-typed fields (indexed or otherwise), and use them 3. Get rid of the FixedArray-style get and set accessors; use TaggedField::load and similar instead 4. Inherit from HeapObject rather than FixedArrayBase to remove the unnecessary `length` field After that, there will only be one ugly part left: initialization. I think it's possible to generate a factory function that takes a bunch of iterator parameters and returns a fully-formed, verifiably correct ScopeInfo instance, but doing so is more complicated than the four mostly-mechanical changes listed above. Bug: v8:7793 Change-Id: I55fcfe9189e4d1613c68d49e378da5dc02597b36 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2357758Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#72187}
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- 30 Nov, 2020 1 commit
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Seth Brenith authored
ScopeInfo objects generally start with three fields: flags, parameter count, and local variable count. But a single read-only ScopeInfo instance has none of those fields. This is the empty ScopeInfo, which is used for contexts that don't correspond to any scope (the native context and contexts for builtin functions). Since there is only ever a single instance of the empty ScopeInfo, the memory savings of omitting these fields is trivial, and we can simplify logic somewhat by including them. Rather than checking for length to be zero, this change introduces a new flag indicating that a ScopeInfo instance is the empty one. On its own, this change doesn't provide a whole lot of value. However, it sets us up for two further improvements, which are consistent with the goals outlined in [1]: 1. We should fully describe ScopeInfo fields in Torque. Getting rid of the requirement to check for emptiness would substantially simplify the indexed field expressions. 2. ScopeInfo shouldn't inherit from FixedArray, and shouldn't begin with a `length` field when the length can be computed from the other fields. This would save a small amount of heap memory and avoid any possibility of a mismatch between the two ways of computing the length. [1] https://docs.google.com/document/d/1tiGK7_lubxPHnInI2vscUwMHfadn8gIEa1apmI8HxR4/edit#heading=h.n63k76b3zfwa Bug: v8:8952 Change-Id: I018127698a5d91fb2a91684bc3aec2e27ee27c41 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2561598Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#71500}
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- 20 Nov, 2020 1 commit
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Leszek Swirski authored
Because of LocalHeap safepoints, our existing assert scopes don't necessarily maintain the same guarantees as desired. In particular, DisallowHeapAllocation no longer guarantees that objects don't move. This patch transitions DisallowHeapAllocation to DisallowGarbageCollection, to ensure that code using this scope is also protected against safepoints. Change-Id: I0411425884f6849982611205fb17bb072881c722 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540547 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#71319}
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- 11 Nov, 2020 1 commit
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Daniel Clark authored
Code review follow-ups from: Plumb import assertions through SourceTextModuleDescriptor's ModuleRequestMap Address a few bits of code review feedback that came in after landing https://chromium-review.googlesource.com/c/v8/v8/+/2493060: - Add ModuleRequest:kAssertionEntrySize and use in place of a numeric literal. - Get rid of ModuleRequestLocation and separate module_request_positions FixedArray, and merge these into AstModuleRequest and v8::internal::ModuleRequest. Change-Id: If6d628d29bfa6fbd9933c6cdaa706623128ccc5d Bug: v8:10958 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2530478Reviewed-by: Marja Hölttä <marja@chromium.org> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Commit-Queue: Dan Clark <daniec@microsoft.com> Cr-Commit-Position: refs/heads/master@{#71125}
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- 10 Nov, 2020 1 commit
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Daniel Clark authored
This change plumbs import assertions from SourceTextModuleDescriptor's ModuleRequestMap into SourceTextModuleInfo via a new ModuleRequest type, where previously there had been only the specifier. SourceTextModuleDescriptor::module_map now deduplicates module requests using the specifier and the import assertions. Continuing to use the specifier alone would cause a loss of information in the event that a module imports from the same specifier multiple times using different sets of assertions. Failing to deduplicate at all would result in multiple requests for statements like `import {a,b,c} from "foo.js"`, which would be a potential performance issue. See design doc at https://docs.google.com/document/d/1yuXgNHSbTAPubT1Mg0JXp5uTrfirkvO1g5cHHCe-LmY for more detail on this decision. v8::internal::ModuleRequest holds the assertions as an array of the form [key1, value1, position1, key2, value2, assertion2, ...]. However the parser still needs to use a map, since duplicate assertion keys need to be detected at parse time. A follow-up change will ensure that assertions are sorted using a proper lexicographic sort. Bug: v8:10958 Change-Id: Iff13fb9a37d58fc1622cd3cce78925ad2b7a14bb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2493060 Commit-Queue: Dan Clark <daniec@microsoft.com> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#71066}
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- 14 Aug, 2020 1 commit
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Leszek Swirski authored
This patch introduces a new LocalIsolate and LocalFactory, which use LocalHeap and replace OffThreadIsolate and OffThreadFactory. This allows us to remove those classes, as well as the related OffThreadSpace, OffThreadLargeObjectSpace, OffThreadHeap, and OffThreadTransferHandle. OffThreadLogger becomes LocalLogger. LocalHeap behaves more like Heap than OffThreadHeap did, so this allows us to additionally remove the concept of "Finish" and "Publish" that the OffThreadIsolate had, and allows us to internalize strings directly with the newly-concurrent string table (where the implementation can now move to FactoryBase). This patch also removes the off-thread support from the deserializer entirely, as well as removing the LocalIsolateWrapper which allowed run-time distinction between Isolate and OffThreadIsolate. LocalHeap doesn't support the reservation model used by the deserializer, and we will likely move the deserializer to use LocalIsolate unconditionally once we figure out the details of how to do this. Bug: chromium:1011762 Change-Id: I1a1a0a72952b19a8a4c167c11a863c153a1252fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2315990 Commit-Queue: Andreas Haas <ahaas@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Cr-Commit-Position: refs/heads/master@{#69397}
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