- 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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- 25 Mar, 2021 1 commit
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Nico Hartmann authored
The implementation of Flatten() Torque generates for CSA struct types and the current implementation of EmitCCValue make heavy use of std::make_tuple and std::tuple_cat, which had a noticeable impact on build times of generated files including these outputs. This CL eliminates all uses of std::tuple_cat and most uses of std::make_tuple. Bug: v8:9861 Change-Id: Ib950b2c87983171b8c32c388fc115d2407087717 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784563 Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#73660}
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- 23 Feb, 2021 1 commit
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Seth Brenith authored
This change adds a new abstract type Lazy<T> which can be used to interoperate with CSA code that uses LazyNode. This new type has special code-generation rules because its generated type is not TNode<...> but std::function<TNode<...>()>. Torque code can do nothing with this type except pass it around, but passing it to the CSA function RunLazy is an easy way to execute the std::function and get back a normal value. Torque code can also create Lazy<T> values using the intrinsic function %MakeLazy, which takes the name of a macro as its first parameter, followed by arguments to that macro which will be passed when the LazyNode is evaluated. We use the macro's name because the language doesn't support taking references to macros, and implementing such a feature would be complicated. Bug: v8:7793 Change-Id: I09120960e3492dd51be0d4c57e14ff3826b99262 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2701752 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@{#72964}
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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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- 19 Jan, 2021 1 commit
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Z Nguyen-Huu authored
Docs: https://docs.google.com/document/d/13n1qaB6A-gvgWc9NDhWm-UPuOqow_Y0DNgCeTbtIotI Modify that C++ backend so that it can emit either runtime C++ or postmortem debugging code. When in postmortem debugging mode, the overall code structure would look similar with some difference: 1. Instead of passing an Isolate* everywhere, we pass a MemoryAccessor. 2. Instead of runtime class names like String, we use uintptr_t 3. When loading data from objects, instead of TaggedField<T>::load or Object::ReadField (which read from the current process), we use the MemoryAccessor and read data from the debuggee process. 4. Return values should be wrapped in the Value struct. Implement the debug accessors for complex length expressions and add test for such class (SmallOrderedHashSet). Change-Id: I34107c92b31ed4e07bb628ae58c84487e41ba648 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2477921 Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#72148}
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- 13 Oct, 2020 1 commit
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Seth Brenith authored
This change updates verifier generation to: - Fix a bug I introduced in https://crrev.com/c/2047399 that caused values within struct-typed fields to not get verified - Support indexed fields with start offsets that are not known at compile time - Support indexed fields with complex length expressions Bug: v8:7793 Change-Id: I5ae8803fce59abae0989fcb094bd9692cd88e38e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461456 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#70490}
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- 05 Oct, 2020 1 commit
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Seth Brenith authored
This change adds a new code generator, which supports a subset of the instructions supported by the existing CSAGenerator, and instead of generating CSA it generates runtime C++ code. The new generator is used to generate a set of Torque macros that return slices to indexed fields. These new macros should be sufficient to eventually support Torque-generated field accessors, BodyDescriptors, verifier functions, and postmortem field inspection in debug_helper. Bug: v8:7793 Change-Id: Ife2d25cfd55a08238c625a8b04aca3ff2a0f4c63 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2429566Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#70313}
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