This reverts commit c07c02e1c4.
Reason for revert: MSAN failures:
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/29251
Original change's description:
> [runtime] Remove extension slots from context objects
>
> Context objects have an extension slot, which contains further
> additional data that depends on the type of the context.
>
> This CL removes the extension slot from contexts that don't need
> them, hence reducing memory.
>
> The following contexts will still have an extension slot: native,
> module, await, block and with contexts. See objects/contexts.h for
> what the slot is used for.
> The following contexts will not have an extension slot anymore (they
> were not used before): script, catch and builtin contexts.
> Eval and function contexts only have the extension slot if they
> contain a sloppy eval.
>
> Bug: v8:9744
> Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191
> Commit-Queue: Victor Gomes <victorgomes@google.com>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Auto-Submit: Victor Gomes <victorgomes@google.com>
> Cr-Commit-Position: refs/heads/master@{#64372}
TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com
Change-Id: I98dee04ab4d3ae977053982ec884b738d2f6f623
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9744
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868611
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64373}
Context objects have an extension slot, which contains further
additional data that depends on the type of the context.
This CL removes the extension slot from contexts that don't need
them, hence reducing memory.
The following contexts will still have an extension slot: native,
module, await, block and with contexts. See objects/contexts.h for
what the slot is used for.
The following contexts will not have an extension slot anymore (they
were not used before): script, catch and builtin contexts.
Eval and function contexts only have the extension slot if they
contain a sloppy eval.
Bug: v8:9744
Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191
Commit-Queue: Victor Gomes <victorgomes@google.com>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@google.com>
Cr-Commit-Position: refs/heads/master@{#64372}
Updates CSA::TryToIntptr to handle array indices that are less than
INT_MAX which allows to handle string keys in the ICs.
Updates ICs to go monomorphic for string keys that are array indices.
Updates Turbofan to handle array indices when lowering element access.
Change-Id: Ibdde20130e075d0d645ab4a8266a968335eaad84
Bug: v8:9449
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1813018
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64320}
for "entries", i.e. indices into the backing store (as opposed to
"public indices" going into the hash function).
This improves consistency and compiler-enforced type safety; no change
in behavior is intended.
Change-Id: I25e57e3ddcf18a406e2dfbd66786b6980c4e9615
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1852768
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64317}
Removes CodeStubAssembler::GotoIfDebugExecutionModeChecksSideEffects and
associated test as well as the PerformSideEffectCheckForObject runtime
function.
Bug: v8:9396
Change-Id: Id7748be8fbf1d633f759fef8751ddca13a21748c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1824937
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64130}
Moves the following functions from CodeStubAssembler to
BuiltinsStringAssembler:
SubString
CopyStringCharacters
AllocAndCopyStringCharacters
Bug: v8:9396
Change-Id: Ieb534b7fa7e72db9b05cdc2a34bd88b7a52ee985
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1822040
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Auto-Submit: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63959}
The promise file is too big so I am splitting it in several CLs.
TNodified:
* AllocatePromiseReaction
* AllocatePromiseReactionJobTask
* AllocatePromiseResolveThenableJobTask
* CreatePromiseResolvingFunctions
* CreatePromiseResolvingFunctionsContext
* CreatePromiseContext
This CL introduces some CASTs that will be deleted once the file is
TNodified in full.
Bug: v8:6949
Change-Id: Ia3006faa5e9fd0e6fa3c58511772857910326532
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809360
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63882}
The promise file is too big so I am splitting it in several CLs.
This is the first one.
TNodified:
* AllocateAndInitJSPromise (three versions)
* PerformPromiseThen
* AllocateJSPromise
Bug: v8:6949
Change-Id: I57ae8de3f929c00a9127ea4be51ffe7703b44959
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807370
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63849}
TNodified:
* EmitCreateShallowArrayLiteral
* EmitCreateShallowObjectLiteral
Also propagated the TNodification of AllocationSite. Previously it was
used a lot with nullptr, and that changed to {}.
Bug: v8:6949, v8:9396
Change-Id: I8ed04d2d346f5960bba23a233c3dd244ad7f122a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795346
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63725}
... to make it "smi-corrupting" decompression-friendly.
Also add a cctest for the CSA implementation.
Bug: v8:9706
Change-Id: I1f1b0aa1b40832a0c2ce81658da316b3e442189c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796802
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63674}
This reverts commit 9da3483136
Original change's description:
> "Reland x4 [arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of bc33f5aeba
>
> Contributed by titzer@chromium.org
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
>
> TBR=yangguo@chromium.org
>
> BUG=v8:9380,v8:9221,chromium:986318
>
> Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63041}
TBR=yangguo@chromium.org
Change-Id: I3cc4bb80081c662b1751234bc16a821c20e744be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792166
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63617}
Change-Id: I29a4d20656727e6ec1e1fd052a840bd5aefe3cd4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781052
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63544}
This reverts commit 62e168308c.
Reason for revert: it will be relanded after branch
Original change's description:
> Reland x5 [arraybuffer] Rearchitect backing store ownership
>
> This reverts commit 8fdb23873b.
>
> Original change's description:
> > "Reland x4 [arraybuffer] Rearchitect backing store ownership"
> >
> > This is a reland of bc33f5aeba
> >
> > Contributed by titzer@chromium.org
> >
> > Original change's description:
> > > [arraybuffer] Rearchitect backing store ownership
> > >
> > > This CL completely rearchitects the ownership of array buffer backing stores,
> > > consolidating ownership into a {BackingStore} C++ object that is tracked
> > > throughout V8 using unique_ptr and shared_ptr where appropriate.
> > >
> > > Overall, lifetime management is simpler and more explicit. The numerous
> > > ways that array buffers were initialized have been streamlined to one
> > > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > > and the construction and destruction of the BackingStore object itself
> > > handles the underlying page or embedder-allocated memory.
> > >
> > > The embedder API remains unchanged for now. We use the
> > > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > > keep the backing store alive properly, even in the case of aliases
> > > from live heap objects. Thus the embedder has a lower chance of making
> > > a mistake. Long-term, we should move the embedder to a model where they
> > > manage backing stores using shared_ptr to an opaque backing store object.
> >
> > TBR=yangguo@chromium.org
> >
> > BUG=v8:9380,v8:9221,chromium:986318
> >
> > Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
> > Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#63041}
>
> TBR=yangguo@chromium.org,clemensh@chromium.org,mstarzinger@chromium.org
>
> Change-Id: Iba55c7ab71e5642b5cb6aeb699d6fc9cf9061486
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771795
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63461}
TBR=ulan@chromium.org,mlippautz@chromium.org
Change-Id: Id8f67a68ab398032eb2975b1b24ee125394d9c4b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1776095
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63471}
This reverts commit 8fdb23873b.
Original change's description:
> "Reland x4 [arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of bc33f5aeba
>
> Contributed by titzer@chromium.org
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
>
> TBR=yangguo@chromium.org
>
> BUG=v8:9380,v8:9221,chromium:986318
>
> Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63041}
TBR=yangguo@chromium.org,clemensh@chromium.org,mstarzinger@chromium.org
Change-Id: Iba55c7ab71e5642b5cb6aeb699d6fc9cf9061486
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771795
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63461}
Forbid using LoadRoot in CSA (with a bailout via CodeAssembler), so that
users are forced to use helper macros for roots, which have statically
known types. Convert all current uses of LoadRoot to use these macros,
introducing new ones where necessary.
Bug: v8:9396
Change-Id: I91214fca6e5ace7554d79605706a8a60117468fa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762526
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63398}
Replace uses of WordEqual on two tagged representation nodes with a new
TaggedEqual helper, which on pointer compressed configs only compares
the bottom 32-bits of the word. We no longer allow using WordEqual on
anything not known to be a WordT (i.e. Node* or TNode<Object>).
In the future, this may allow us to ignore the top bits of an
uncompressed Smi, and have simpler decompression, though this patch is
not sufficient for such a change.
As a necessary drive-by, TNodify a bunch of stuff.
Bug: v8:8948
Change-Id: Ie11b70709e5d3073f12551b37b420a172a71bc99
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763531
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63372}
This reverts commit 5c59ba4fbc.
Reason for revert: requires more thinking
Original change's description:
> [ic] Fix KeyedLoadIC for ArrayIndex access
>
> Previously, without support for converting strings to numbers we'd
> switch to megamorphic state and go to the runtime always to do the
> conversion causing a performance cliff.
>
> This patch improves the following js-perf-test scores:
> Object-Lookup-String-Constant-BytecodeHandler: 4.25%
> Object-Lookup-Index-String-BytecodeHandler: 5.41%
>
> Bug: v8:9449
> Change-Id: I63787fa84373fc946f1304b0141e48a52a1b4bcb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690953
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63293}
TBR=mythria@chromium.org,jyan@ca.ibm.com,gsathya@chromium.org,leszeks@chromium.org,ishell@chromium.org,verwaest@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9449
Change-Id: I6b6ad5901175c2e6bbd7516b13e91471adb5776d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765532
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63347}
Automated cleanup which finds patterns of `Node* a = foo` where `foo` is
a TNode expression, and replaces Node* with the appropriate TNode.
Bug: v8:9396
Change-Id: I8b0cd9baf10e74d6e2e336eae62eca6cfe6a9c11
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762515
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63335}
Previously, without support for converting strings to numbers we'd
switch to megamorphic state and go to the runtime always to do the
conversion causing a performance cliff.
This patch improves the following js-perf-test scores:
Object-Lookup-String-Constant-BytecodeHandler: 4.25%
Object-Lookup-Index-String-BytecodeHandler: 5.41%
Bug: v8:9449
Change-Id: I63787fa84373fc946f1304b0141e48a52a1b4bcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690953
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63293}
This CL increases the maximum number of arguments for CallCFunction to
10 (was 9 previously).
All simulators also support up to 10 arguments now for host-calls.
Bug: v8:9621
Change-Id: Ib21cd39e965cdfcb0b04412261dc02e5fe106e47
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1752852
Commit-Queue: Patrick Thier <pthier@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63208}
This reverts commit 5611f70b3d.
Reason for revert: flaky tests: v8:9588, v8:9587
Original change's description:
> "Reland x4 [arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of bc33f5aeba
>
> Contributed by titzer@chromium.org
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
>
> TBR=yangguo@chromium.org
>
> BUG=v8:9380,v8:9221,chromium:986318
>
> Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63041}
TBR=ulan@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,clemensh@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9380, v8:9221, chromium:986318
Change-Id: Ic7381239f4e90d0c437b7e47a5ac6e8bce60f882
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1736747
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63081}
This is a reland of bc33f5aeba
Contributed by titzer@chromium.org
Original change's description:
> [arraybuffer] Rearchitect backing store ownership
>
> This CL completely rearchitects the ownership of array buffer backing stores,
> consolidating ownership into a {BackingStore} C++ object that is tracked
> throughout V8 using unique_ptr and shared_ptr where appropriate.
>
> Overall, lifetime management is simpler and more explicit. The numerous
> ways that array buffers were initialized have been streamlined to one
> Attach() method on JSArrayBuffer. The array buffer tracker in the
> GC implementation now manages std::shared_ptr<BackingStore> pointers,
> and the construction and destruction of the BackingStore object itself
> handles the underlying page or embedder-allocated memory.
>
> The embedder API remains unchanged for now. We use the
> v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> keep the backing store alive properly, even in the case of aliases
> from live heap objects. Thus the embedder has a lower chance of making
> a mistake. Long-term, we should move the embedder to a model where they
> manage backing stores using shared_ptr to an opaque backing store object.
TBR=yangguo@chromium.org
BUG=v8:9380,v8:9221,chromium:986318
Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63041}
This reverts commit df8e617772.
Reason for revert: Multiple flakes in apparently related areas:
https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8906409837768155568/+/steps/Check__flakes_/0/logs/BackingStoreTest.RacyGrowWasmMem.../0
Original change's description:
> "Reland x3 [arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of bc33f5aeba
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
>
> R=mlippautz@chromium.org
> BUG=v8:9380,v8:9221,chromium:986318
> TBR=ulan@chromium.org
>
> Change-Id: I6c49e2425029b5664ef1c68dab8b5146f4ed0ff2
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1719191
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63007}
TBR=mstarzinger@chromium.org,titzer@chromium.org,mlippautz@chromium.org
Change-Id: If0266e5893b1325a332d5986337fa7ece2cb6943
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9380, v8:9221, chromium:986318
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1729549
Reviewed-by: Francis McCabe <fgm@chromium.org>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63011}
This is a reland of bc33f5aeba
Original change's description:
> [arraybuffer] Rearchitect backing store ownership
>
> This CL completely rearchitects the ownership of array buffer backing stores,
> consolidating ownership into a {BackingStore} C++ object that is tracked
> throughout V8 using unique_ptr and shared_ptr where appropriate.
>
> Overall, lifetime management is simpler and more explicit. The numerous
> ways that array buffers were initialized have been streamlined to one
> Attach() method on JSArrayBuffer. The array buffer tracker in the
> GC implementation now manages std::shared_ptr<BackingStore> pointers,
> and the construction and destruction of the BackingStore object itself
> handles the underlying page or embedder-allocated memory.
>
> The embedder API remains unchanged for now. We use the
> v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> keep the backing store alive properly, even in the case of aliases
> from live heap objects. Thus the embedder has a lower chance of making
> a mistake. Long-term, we should move the embedder to a model where they
> manage backing stores using shared_ptr to an opaque backing store object.
R=mlippautz@chromium.org
BUG=v8:9380,v8:9221,chromium:986318
TBR=ulan@chromium.org
Change-Id: I6c49e2425029b5664ef1c68dab8b5146f4ed0ff2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1719191
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63007}
This is a reland of 658ff20085
Original change's description:
> [utils] Make BitField final
>
> We have hundreds of classes that derive from {BitField} without adding
> any functionality. This CL switches all such occurrences to 'using'
> declarations instead.
>
> Before:
> class MyBitField : public BitField<int, 6, 4, MyEnum> {};
> After:
> using MyBitField = BitField<int, 6, 4, MyEnum>;
>
> This might reduce compilation time by reducing the number of existing
> classes.
>
> The old pattern is forbidden now by making {BitField} final.
>
> R=yangguo@chromium.org
>
> Bug: v8:9396, v8:7629
> Change-Id: I8a8364707e8eae0bb522af2459c160e3293eecbb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1722565
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62956}
Bug: v8:9396, v8:7629
Change-Id: Ic68541af9d1e8d0340691970922f282b24a9767f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1724379
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62959}
This reverts commit 658ff20085.
Reason for revert: Fails no-i18n bot: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20noi18n%20-%20debug/27826
Original change's description:
> [utils] Make BitField final
>
> We have hundreds of classes that derive from {BitField} without adding
> any functionality. This CL switches all such occurrences to 'using'
> declarations instead.
>
> Before:
> class MyBitField : public BitField<int, 6, 4, MyEnum> {};
> After:
> using MyBitField = BitField<int, 6, 4, MyEnum>;
>
> This might reduce compilation time by reducing the number of existing
> classes.
>
> The old pattern is forbidden now by making {BitField} final.
>
> R=yangguo@chromium.org
>
> Bug: v8:9396, v8:7629
> Change-Id: I8a8364707e8eae0bb522af2459c160e3293eecbb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1722565
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62956}
TBR=yangguo@chromium.org,clemensh@chromium.org
Change-Id: I50234a09c77aa89fdcf1e01c2497cc08d3ac79a8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9396, v8:7629
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1724377
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62958}
We have hundreds of classes that derive from {BitField} without adding
any functionality. This CL switches all such occurrences to 'using'
declarations instead.
Before:
class MyBitField : public BitField<int, 6, 4, MyEnum> {};
After:
using MyBitField = BitField<int, 6, 4, MyEnum>;
This might reduce compilation time by reducing the number of existing
classes.
The old pattern is forbidden now by making {BitField} final.
R=yangguo@chromium.org
Bug: v8:9396, v8:7629
Change-Id: I8a8364707e8eae0bb522af2459c160e3293eecbb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1722565
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62956}
This reverts commit 306cf40344.
Reason for revert: performance regressions / too near branch point
TBR=mslekova@chromium.org
BUG=v8:9380
Change-Id: If77630b73eafbf1190c823199fe2a34361da303f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1714867
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62867}
This is a reland of bc33f5aeba
Original change's description:
> Reland "[arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of 31cd5d83d3
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
> >
> > R=mlippautz@chromium.org
> > BUG=v8:9380,v8:9221
> >
> > Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323
> > Commit-Queue: Ben Titzer <titzer@chromium.org>
> > Reviewed-by: Ben Titzer <titzer@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#62572}
>
> Bug: v8:9380, v8:9221
> Change-Id: If3f72967a8ebeb067c0edcfc16ed631e36829dbc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691906
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62809}
Bug: v8:9380, v8:9221
Change-Id: I9a2525753ae2424108d074fa81df5f25d945c824
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1709409
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62847}
This reverts commit bc33f5aeba.
Reason for revert: Still failing (OOM on win32): https://ci.chromium.org/p/v8/builders/ci/V8%20Win32/22210
Original change's description:
> Reland "[arraybuffer] Rearchitect backing store ownership"
>
> This is a reland of 31cd5d83d3
>
> Original change's description:
> > [arraybuffer] Rearchitect backing store ownership
> >
> > This CL completely rearchitects the ownership of array buffer backing stores,
> > consolidating ownership into a {BackingStore} C++ object that is tracked
> > throughout V8 using unique_ptr and shared_ptr where appropriate.
> >
> > Overall, lifetime management is simpler and more explicit. The numerous
> > ways that array buffers were initialized have been streamlined to one
> > Attach() method on JSArrayBuffer. The array buffer tracker in the
> > GC implementation now manages std::shared_ptr<BackingStore> pointers,
> > and the construction and destruction of the BackingStore object itself
> > handles the underlying page or embedder-allocated memory.
> >
> > The embedder API remains unchanged for now. We use the
> > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> > keep the backing store alive properly, even in the case of aliases
> > from live heap objects. Thus the embedder has a lower chance of making
> > a mistake. Long-term, we should move the embedder to a model where they
> > manage backing stores using shared_ptr to an opaque backing store object.
> >
> > R=mlippautz@chromium.org
> > BUG=v8:9380,v8:9221
> >
> > Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323
> > Commit-Queue: Ben Titzer <titzer@chromium.org>
> > Reviewed-by: Ben Titzer <titzer@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#62572}
>
> Bug: v8:9380, v8:9221
> Change-Id: If3f72967a8ebeb067c0edcfc16ed631e36829dbc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691906
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62809}
TBR=ulan@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,titzer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org
Change-Id: Iea755df9aaa1e95d284135bd0a6681b1340b6832
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9380, v8:9221
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1708487
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62811}
This is a reland of 31cd5d83d3
Original change's description:
> [arraybuffer] Rearchitect backing store ownership
>
> This CL completely rearchitects the ownership of array buffer backing stores,
> consolidating ownership into a {BackingStore} C++ object that is tracked
> throughout V8 using unique_ptr and shared_ptr where appropriate.
>
> Overall, lifetime management is simpler and more explicit. The numerous
> ways that array buffers were initialized have been streamlined to one
> Attach() method on JSArrayBuffer. The array buffer tracker in the
> GC implementation now manages std::shared_ptr<BackingStore> pointers,
> and the construction and destruction of the BackingStore object itself
> handles the underlying page or embedder-allocated memory.
>
> The embedder API remains unchanged for now. We use the
> v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> keep the backing store alive properly, even in the case of aliases
> from live heap objects. Thus the embedder has a lower chance of making
> a mistake. Long-term, we should move the embedder to a model where they
> manage backing stores using shared_ptr to an opaque backing store object.
>
> R=mlippautz@chromium.org
> BUG=v8:9380,v8:9221
>
> Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62572}
Bug: v8:9380, v8:9221
Change-Id: If3f72967a8ebeb067c0edcfc16ed631e36829dbc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691906
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62809}
This reverts commit 31cd5d83d3.
Reason for revert: It breaks my heart to revert this, but it fails differently on several bots, e.g. https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20debug/26671.
Original change's description:
> [arraybuffer] Rearchitect backing store ownership
>
> This CL completely rearchitects the ownership of array buffer backing stores,
> consolidating ownership into a {BackingStore} C++ object that is tracked
> throughout V8 using unique_ptr and shared_ptr where appropriate.
>
> Overall, lifetime management is simpler and more explicit. The numerous
> ways that array buffers were initialized have been streamlined to one
> Attach() method on JSArrayBuffer. The array buffer tracker in the
> GC implementation now manages std::shared_ptr<BackingStore> pointers,
> and the construction and destruction of the BackingStore object itself
> handles the underlying page or embedder-allocated memory.
>
> The embedder API remains unchanged for now. We use the
> v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
> keep the backing store alive properly, even in the case of aliases
> from live heap objects. Thus the embedder has a lower chance of making
> a mistake. Long-term, we should move the embedder to a model where they
> manage backing stores using shared_ptr to an opaque backing store object.
>
> R=mlippautz@chromium.org
> BUG=v8:9380,v8:9221
>
> Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62572}
TBR=ulan@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,titzer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org
Change-Id: Ib35788ba8c31192d90cbc72df3dbc41030f109de
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9380, v8:9221
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691034
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62578}
This CL completely rearchitects the ownership of array buffer backing stores,
consolidating ownership into a {BackingStore} C++ object that is tracked
throughout V8 using unique_ptr and shared_ptr where appropriate.
Overall, lifetime management is simpler and more explicit. The numerous
ways that array buffers were initialized have been streamlined to one
Attach() method on JSArrayBuffer. The array buffer tracker in the
GC implementation now manages std::shared_ptr<BackingStore> pointers,
and the construction and destruction of the BackingStore object itself
handles the underlying page or embedder-allocated memory.
The embedder API remains unchanged for now. We use the
v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to
keep the backing store alive properly, even in the case of aliases
from live heap objects. Thus the embedder has a lower chance of making
a mistake. Long-term, we should move the embedder to a model where they
manage backing stores using shared_ptr to an opaque backing store object.
R=mlippautz@chromium.org
BUG=v8:9380,v8:9221
Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62572}
We currently use the class name “JSValue” for JSObjects that wrap
primitive values. This name is a common source of confusion. This patch
switches to a name that’s more clear.
In addition to manual tweaks, the patch applies the following mechanical
global replacements:
before | after
--------------------------------|--------------------------------------
if_valueisnotvalue | if_valueisnotwrapper
if_valueisvalue | if_valueiswrapper
js_value | js_primitive_wrapper
JS_VALUE_TYPE | JS_PRIMITIVE_WRAPPER_TYPE
JSPrimitiveWrapperType | JSPrimitiveWrapper type
jsvalue | js_primitive_wrapper
JSValue | JSPrimitiveWrapper
_GENERATED_JSVALUE_FIELDS | _GENERATED_JSPRIMITIVE_WRAPPER_FIELDS
Change-Id: I9d9edea784eab6067b013e1f781e4db2070f807c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1672942
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62337}
This change removes the special case in the Torque compiler for types
that descend from JSObject: they will no longer get implicit
"| Undefined" appended to their types for verification purposes. It
removes any additional custom verification steps in objects-debug that
are made redundant by that change.
In order to do so safely, I categorized all cases where we were
implicitly adding "| Undefined" to the field type, as follows:
1. Classes that aren't using the generated verifier function (we should
probably revisit these, but for now we at least know they're safe):
- JSGlobalObject
- JSFinalizationGroup
- JSFinalizationGroupCleanupIterator
2. Classes where the existing verifier is already at least as strict as
what we would get after removing the implicit "| Undefined":
- JSDate
- JSPromise
- JSRegExp
- JSRegExpStringIterator
- WasmMemoryObject
- JSWeakRef
- JSStringIterator
- WasmExceptionObject
- JSListFormat (fixed in part 1)
- JSPluralRules (fixed in part 1)
- JSRelativeTimeFormat (fixed in part 1)
- JSSegmenter (fixed in part 1)
- JSArrayBufferView (fixed in part 1)
- JSTypedArray (fixed in part 1)
3. Classes where, to the best of my knowledge based on code inspection,
we already initialize the object correctly to pass the new stricter
generated verifier:
- JSFunction
- JSArrayIterator
- JSMessageObject
- JSBoundFunction
- JSAsyncFromSyncIterator
- WasmModuleObject
- JSAsyncFunctionObject
4. Classes that needed some adjustment to their initialization order to
avoid exposing uninitialized state to the GC:
- JSArray (only in Factory::NewJSArray; Runtime_NewArray and
CodeStubAssembler::AllocateJSArray already behave fine)
- WasmTableObject
- JSDateTimeFormat
- JSNumberFormat
- JSCollator
- JSV8BreakIterator
- JSLocale
- JSSegmentIterator
- JSModuleNamespace
5. Classes that had incorrect type definitions in Torque:
- WasmGlobalObject (category 4 after correction)
6. Classes that weren't fully initialized due to bugs:
- JSGeneratorObject
- JSAsyncGeneratorObject
Bug: v8:9311
Change-Id: I99ab303d3352423f50a3d0abb6eb0c9b463e7552
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1654980
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62228}
Following up on https://chromium-review.googlesource.com/c/v8/v8/+/1637879,
this CL removes the tests that used explicit Compress/Decompress functions
in CSA
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:7703
Change-Id: I063678a732545eb505fa752612242ceeb42be823
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1640206
Auto-Submit: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61962}
This is a reland of 4b86fea530 with
copy&paste typo in CodeStubAssembler::AllocateByteArray() fixed
(bug led to holes in new space, which was crashing reproducibly
on the ia32 bot).
Original change's description:
> [typedarray] Move external/data pointer to JSTypedArray.
>
> As the next step in supporting huge typed arrays in V8, this moves the
> external/data pointer from the FixedTypedArrayBase backing store to the
> JSTypedArray instance itself, and replaces the special backing stores
> with a plain ByteArray (removing all the code for the FixedTypedArrayBase
> class hierarchy). By doing so, we can drastically simplify the system
> around typed arrays.
>
> Note: Several places in the code base used to check the instance type
> of the elements backing store of a JSTypedArray instead of checking the
> elements kind on the JSTypedArray map directly. Those had to be fixed,
> since the backing store is now always a ByteArray.
>
> Drive-by-fix: Move all the typed elements access related code into the
> elements.cc file to properly encapsulate the accesses.
>
> Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
> Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
> Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
> Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61855}
Tbr: petermarshall@chromium.org
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Change-Id: I87fcdb28532c5f08cc227332a4d59546cb423810
Cq-Include-Trybots: luci.chromium.try:linux-rel, win7-rel
Cq-Include-Trybots: luci.v8.try:v8_linux_shared_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631592
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61864}
This reverts commit 4b86fea530.
Reason for revert: Fails on linux shared: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20shared/31045
Original change's description:
> [typedarray] Move external/data pointer to JSTypedArray.
>
> As the next step in supporting huge typed arrays in V8, this moves the
> external/data pointer from the FixedTypedArrayBase backing store to the
> JSTypedArray instance itself, and replaces the special backing stores
> with a plain ByteArray (removing all the code for the FixedTypedArrayBase
> class hierarchy). By doing so, we can drastically simplify the system
> around typed arrays.
>
> Note: Several places in the code base used to check the instance type
> of the elements backing store of a JSTypedArray instead of checking the
> elements kind on the JSTypedArray map directly. Those had to be fixed,
> since the backing store is now always a ByteArray.
>
> Drive-by-fix: Move all the typed elements access related code into the
> elements.cc file to properly encapsulate the accesses.
>
> Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
> Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
> Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
> Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61855}
TBR=ulan@chromium.org,yangguo@chromium.org,titzer@chromium.org,sigurds@chromium.org,petermarshall@chromium.org,bmeurer@chromium.org,szuend@chromium.org
Change-Id: I0bc1f935de6063acf75a0f4bb8c0ba67428603fd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Cq-Include-Trybots: luci.chromium.try:linux-rel, win7-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631427
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61856}
As the next step in supporting huge typed arrays in V8, this moves the
external/data pointer from the FixedTypedArrayBase backing store to the
JSTypedArray instance itself, and replaces the special backing stores
with a plain ByteArray (removing all the code for the FixedTypedArrayBase
class hierarchy). By doing so, we can drastically simplify the system
around typed arrays.
Note: Several places in the code base used to check the instance type
of the elements backing store of a JSTypedArray instead of checking the
elements kind on the JSTypedArray map directly. Those had to be fixed,
since the backing store is now always a ByteArray.
Drive-by-fix: Move all the typed elements access related code into the
elements.cc file to properly encapsulate the accesses.
Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61855}
This replaces all typedefs that define types and not functions by the
equivalent "using" declaration.
This was done mostly automatically using this command:
ag -l '\btypedef\b' src test | xargs -L1 \
perl -i -p0e 's/typedef ([^*;{}]+) (\w+);/using \2 = \1;/sg'
Patchset 2 then adds some manual changes for typedefs for pointer types,
where the regular expression did not match.
R=mstarzinger@chromium.orgTBR=yangguo@chromium.org, jarin@chromium.org
Bug: v8:9183
Change-Id: I6f6ee28d1793b7ac34a58f980b94babc21874b78
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631409
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61849}
This CL was generated by an automatic clang AST rewriter using this
matcher expression:
callExpr(
callee(
cxxMethodDecl(
hasName("operator->"),
ofClass(isSameOrDerivedFrom("v8::internal::Object"))
)
),
argumentCountIs(1)
)
The "->" at the expression location was then rewritten to ".".
R=jkummerow@chromium.orgTBR=mstarzinger@chromium.org,verwaest@chromium.org,yangguo@chromium.org
Bug: v8:9183, v8:3770
No-Try: true
No-Tree-Checks: true
Change-Id: I0a7ecabdeafe51d0cf427f5280af0c7cab96869e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624209
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61764}
Bug: v8:9247
Change-Id: I9bcf2694b449f79cdbe03f5fde59cb21b8cad418
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619758
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61676}
Code that is being moved primarily deal with layout of a JSObject,
accessing properties and elements, and map transitions.
NOTREECHECKS=true
NOTRY=true
Bug: v8:9247
Change-Id: Ibce5d5926ac4021c8d40c4dd109948775ce1da58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613994
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61638}
Our {Vector} template provides both {start} and {begin} methods. They
return exactly the same value. Since the {begin} method is needed for
iteration, and is also what standard containers provide, this CL
switches all uses of the {start} method to use {begin} instead.
Patchset 1 was auto-generated by using this clang AST matcher:
callExpr(
callee(
cxxMethodDecl(
hasName("start"),
ofClass(hasName("v8::internal::Vector")))
),
argumentCountIs(0))
Patchset 2 was created by running clang-format. Patchset 3 then
removes the now unused {Vector::start} method.
R=jkummerow@chromium.orgTBR=mstarzinger@chromium.org,yangguo@chromium.org,verwaest@chromium.org
Bug: v8:9183
Change-Id: Id9f01c92870872556e2bb3f6d5667463b0e3e5c6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1587381
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61081}
Use the existing {ArrayVector} method for this, which reads nicer. In
some places, I replaced a stack-allocated array by {EmbeddedVector} to
avoid the {ArrayVector} call.
R=mstarzinger@chromium.org
Bug: v8:8834
Change-Id: I5560c07f2775338fefd11acf67a540e003428e74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1578899
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60975}
To keep things simple, we just ensure that the spill slots always
contain full uncompressed pointers before GC sees them.
Bug: v8:8977, v8:7703
Change-Id: I54eab1b3e79e8525200139e487ff64d82ae157e5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1564198
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60811}
This change aims to simplify RawMachineAssembler::CallCFunction
interface by use of variadic templates.
Change-Id: Ie7081f692f62674f891f09abfd7149e8d95eeb81
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1526015
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60710}
... and fix header includes to please the respective bot.
Drive-by-fix: decompression implementation is now MSVC friendly.
Bug: v8:7703, v8:8834
Change-Id: Iaf589138e5bafb32b0d9feab5cf074b71f241a3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1505579
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60074}
This takes heap-inl.h out of the "Giant Include Cluster".
Naturally, that means adding a bunch of explicit includes
in a bunch of places that relied on transitively including
them before.
As of this patch, no header file outside src/heap/ includes
heap-inl.h.
Bug: v8:8562,v8:8499
Change-Id: I65fa763f90e66afc30d105b9277792721f05a6d4
Reviewed-on: https://chromium-review.googlesource.com/c/1459659
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59617}
HeapObject::SizeFromMap() was too large to get inlined anyway.
HeapObject::IsFoo() predicates should be implemented in foo-inl.h,
because that's what they depend on.
This patch also fixes up includes: dropping unnecessary ones from
object-inl.h, and adding them in other places that previously
relied on getting them transitively.
Bug: v8:8562
Change-Id: Id062bed67257d9dc1899f2d71f44cf69a1368c83
Reviewed-on: https://chromium-review.googlesource.com/c/1450778
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59478}
Inferring the language mode involves iterating the stack to find the
closure. This is an expensive operation and should be done only when
required. This cl changes the implementation to infer the language
mode only when we can't defer it any further. Currently, we infer the
language mode when throwing an exception or when passing this
information to PropertyCallbackArguments.
This cl also changes the language mode parameter to SetProperty
related methods to Maybe<ShouldThrow>. We only use the language mode to
decide if we need to throw and using ShouldThrow instead of language
mode simplifies the code by avoiding conversions from Maybe<ShouldThrow>
to Maybe<LanguageMode> and vice-versa.
Bug: v8:8580, chromium:923820, chromium:925289
Change-Id: I72497497f62fe0d86fcecd57b06b3183b7531f7b
Reviewed-on: https://chromium-review.googlesource.com/c/1425912
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59094}
These test off-heap builtin call sequences and don't make sense in
noembed builds.
Tbr: sigurds@chromium.org
Bug: v8:7777
Change-Id: I2795257e33b6ad87958d08f0845b75a7e88988f2
Reviewed-on: https://chromium-review.googlesource.com/c/1390120
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58461}
Merging the temporary HeapObjectPtr back into HeapObject.
Bug: v8:3770
Change-Id: I5bcd23ca2f5ba862cf5b52955dca143e531c637b
Reviewed-on: https://chromium-review.googlesource.com/c/1386492
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58410}
along with subclasses: Tuple2, Tuple3, FeedbackCell, AccessorPair.
The latter two can be separated out later if desired.
Bug: v8:5402
Change-Id: I4e1a6d2621cc6f96b5da208cff0da7cd5de91672
Reviewed-on: https://chromium-review.googlesource.com/c/1371038
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58251}
This is a reland of 2e36e9ea1e
Was reverted because of v8_presubmit.py issue in
https://chromium-review.googlesource.com/c/v8/v8/+/1374292
Original change's description:
> Don't use |v8_initializers| code in |v8_base|
>
> Removing |CodeStubAssembler| from |v8_base| source list (see
> https://chromium-review.googlesource.com/c/v8/v8/+/1346329) leads to
> linkage problems with some build configurations because it was explicitly
> and implicitly included in |v8_base| code.
>
> This CL decouple this code and fixes problems.
>
> Bug: v8:7777
> Change-Id: I58de5c62914bc77645ed6cc9114409890bc13189
> Reviewed-on: https://chromium-review.googlesource.com/c/1372067
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58200}
Bug: v8:7777
Change-Id: Iaa00e73c7dbd8c413fbf15a17709aa12eda9a706
Reviewed-on: https://chromium-review.googlesource.com/c/1375654
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58209}
This reverts commit 2e36e9ea1e.
Reason for revert: Missing explicit include in cc file:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Presubmit/986
Original change's description:
> Don't use |v8_initializers| code in |v8_base|
>
> Removing |CodeStubAssembler| from |v8_base| source list (see
> https://chromium-review.googlesource.com/c/v8/v8/+/1346329) leads to
> linkage problems with some build configurations because it was explicitly
> and implicitly included in |v8_base| code.
>
> This CL decouple this code and fixes problems.
>
> Bug: v8:7777
> Change-Id: I58de5c62914bc77645ed6cc9114409890bc13189
> Reviewed-on: https://chromium-review.googlesource.com/c/1372067
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58200}
TBR=jkummerow@chromium.org,jgruber@chromium.org,bmeurer@chromium.org,atimoxin@yandex-team.ru
Change-Id: I3e41fb5f8a9db6a78c56546a08e55610885d312b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7777
Reviewed-on: https://chromium-review.googlesource.com/c/1374292
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58201}
Removing |CodeStubAssembler| from |v8_base| source list (see
https://chromium-review.googlesource.com/c/v8/v8/+/1346329) leads to
linkage problems with some build configurations because it was explicitly
and implicitly included in |v8_base| code.
This CL decouple this code and fixes problems.
Bug: v8:7777
Change-Id: I58de5c62914bc77645ed6cc9114409890bc13189
Reviewed-on: https://chromium-review.googlesource.com/c/1372067
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58200}
This is purely a renaming change. The ES spec uses the term 'detach'
for the process of removing the backing store of a typed array, while
V8 uses the historical term 'neuter'. Update our internal implementation,
including method names and flag names, to match the spec.
Note that some error messages still use the term 'neuter' since error
messages are asserted by some embedder tests, like layout tests.
R=bmeurer@chromium.org, yangguo@chromium.org, mstarzinger@chromium.org, mlippautz@chromium.org
BUG=chromium:913887
Change-Id: I62f1c3ac9ae67ba01d612a5221afa3d92deae272
Reviewed-on: https://chromium-review.googlesource.com/c/1370036
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58149}
Update is_compiled() and has_feedback_vector() to return false in the case
where the SFI's bytecode has been flushed, but the JSFunction hasn't yet been
reset to uncompiled. Also add code to reset the JSFunction when it is recompiled
lazily.
BUG=v8:8394
Change-Id: I7c5f79066603ac1ae097a0a62c625b1a8e39431c
Reviewed-on: https://chromium-review.googlesource.com/c/1363138
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58148}
Building on https://chromium-review.googlesource.com/c/v8/v8/+/1349243,
which asserted on calls to GetChars() that weren't in a
DisallowHeapAllocation scope, this CL takes a reference to the scope
in order to provide static protection in all builds.
Bug: v8:8238
Change-Id: I481a1dbbd3ae57eb35c5f828c5e242691635be27
Reviewed-on: https://chromium-review.googlesource.com/c/1354038
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58022}
to the new design.
Bug: v8:3770
Change-Id: I3cd0a66eefefedc98a641494302fc79d897a153a
Reviewed-on: https://chromium-review.googlesource.com/c/1345910
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57801}
Moves the unicode predicate cache tables out of the unicode cache,
and turns them into generic predicates in char-predicates.h which
use static constexpr tables.
This drops the per-isolate cost of unicode caches, and removes the
need for accessing the unicode cache from most files. It does remove
the mutability of the cache, which means that there may be regressions
when parsing non-ASCII identifiers. Most likely the benefits to ASCII
identifiers/keywords will outweigh any non-ASCII costs.
Change-Id: I9a7a8b7c9b22d3e9ede824ab4e27f133ce20a399
Reviewed-on: https://chromium-review.googlesource.com/c/1335564
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57506}
E.g., "ToWeakHeapObject" was misleading, since it didn't convert to a weak heap
object, instead returned a weakly pointed heap object. Change the function names
(in this case, to "GetHeapObjectIfWeak") to reflect this.
Also make casts explicit, if a MaybeObject is an Object, we can call cast<Object>().
Previous version: https://chromium-review.googlesource.com/1219025
BUG=v8:7308
TBR=ishell@chromium.org, ulan@chromium.org, ahaas@chromium.org, yangguo@chromium.org, tebbi@chromium.org
Change-Id: I503d4a2a3a68f85e9e02e1c2f9fc1c4187c8e9a1
Reviewed-on: https://chromium-review.googlesource.com/1226800
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55934}
This reverts commit ad72d19516.
Reason for revert: Build failures on *san
Original change's description:
> [in-place weak refs] Fix MaybeObject function names
>
> E.g., "ToWeakHeapObject" was misleading, since it didn't convert to a weak heap
> object, instead returned a weakly pointed heap object. Change the function names
> (in this case, to "GetHeapObjectIfWeak") to reflect this.
>
> Also make casts explicit, if a MaybeObject is an Object, we can call cast<Object>().
>
> BUG=v8:7308
>
> Change-Id: I4ef078572b4f4415afe7e2e706d3bd684e16e47d
> Reviewed-on: https://chromium-review.googlesource.com/1219025
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Marja Hölttä <marja@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55906}
TBR=ulan@chromium.org,marja@chromium.org,yangguo@chromium.org,ahaas@chromium.org,tebbi@chromium.org,ishell@chromium.org
Change-Id: I054b578518e3f6fd7dbcddf0b56cc018726c1e7a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7308
Reviewed-on: https://chromium-review.googlesource.com/1226874
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55918}
E.g., "ToWeakHeapObject" was misleading, since it didn't convert to a weak heap
object, instead returned a weakly pointed heap object. Change the function names
(in this case, to "GetHeapObjectIfWeak") to reflect this.
Also make casts explicit, if a MaybeObject is an Object, we can call cast<Object>().
BUG=v8:7308
Change-Id: I4ef078572b4f4415afe7e2e706d3bd684e16e47d
Reviewed-on: https://chromium-review.googlesource.com/1219025
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55906}
This CL does two things: It adds a CSA helper to determine whether
the debug_execution_mode is kSideEffects. And it adds a runtime
function that exposes PerformSideEffectCheckForObject.
This will be needed for the Array.p.unshift Torque version.
R=jgruber@chromium.org
Change-Id: Idc1ae077956e0862e613a2c28af3f2cf4d5c3762
Reviewed-on: https://chromium-review.googlesource.com/1196362
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55577}
JSArrays and JSArrayBuffers are very different animals. As such,
split the js-array.h header into two parts.
R=ulan@chromium.org,mstarzinger@chromium.org
Bug: v8:5402
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I82f987ecea3e2e1ceaf8f8962a2b88165558c57e
Reviewed-on: https://chromium-review.googlesource.com/1177760
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55183}
This adds two tests that generate calls to embedded builtins, one test
inlines the trampoline, and the other uses an indirect load from the
roots array.
Bug: v8:6666, v8:7997
Change-Id: I077f4e9ed311021edb8ee74db625ebb048fdf66b
Reviewed-on: https://chromium-review.googlesource.com/1160237
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54869}
CHECK is accessing 1 byte across object boundary because
*expect and *actual will return the object address with
tag. And memcmp should return 0 if we expect (expected == actual)
R=cbruni@chromium.org, gsathya@chromium.org, ishell@chromium.org
Bug: v8:6443, v8:7569
Change-Id: I316e450a80400cea4c9394dbe470932a1f30cea5
Reviewed-on: https://chromium-review.googlesource.com/1142351
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#54561}
Ran GetIsolate/GetHeap removal script over all the header files included
into objects.cc. Affected classes include: ScriptContextTable
RuntimeCallTimerScope GlobalDictionaryShape Map LookupIterator
PrototypeIterator FixedArrayBuilder
Manually fixed up Map to mark its write operations as safe for
GetIsolate since they modify the object as so can't be done in RO_SPACE.
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I2fd0960f085d1bcb4cf54b3418899ac0217917ca
Reviewed-on: https://chromium-review.googlesource.com/1138076
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54488}
All auto-generated with some fix-ups including marking the following
classes as NeverReadOnlySpaceObject so their GetIsolate/GetHeap methods
are safe to use:
Code, CodeDataContainer, AbstractCode, DeoptimizationData,
CompilationCacheTable, NormalizedMapCache, Script, SharedFunctionInfo
TBR=yangguo@chromium.org
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I6cb5dcca88a0bc99b5afe80f553e06a661b5da3c
Reviewed-on: https://chromium-review.googlesource.com/1135306
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54439}
With ReadOnlyRoots and GetIsolate on JSReceiver, we can remove almost
every isolate parameter from <Object>::Print. The remaining ones, like
Map, are special-caseable for read-only maps, and as a result we can
remove isolate parameters from <Object>::Print entirely.
This patch also opportunistically cleans up a few places where isolates
were only needed for Object::Print, such as TransitionAccessors and
DescriptorArrays.
TBR=yangguo@chromium.org,mstarzinger@chromium.org
Bug: v8:7786
Change-Id: Id44bd53b9893e679eea5f37b9548257595a1bfd9
Reviewed-on: https://chromium-review.googlesource.com/1133385
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54401}
In future the RO_SPACE root accessors in Heap will become private, so
instead convert them all to use ReadOnlyRoots.
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2f2c031c03d56d360ef940fc925e0583e6ae31dc
Reviewed-on: https://chromium-review.googlesource.com/1125720
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54202}
This removes several GetIsolate calls from Map:: methods and instead
passes the Isolate in. This is a very noisy change but mostly it is just
adding Isolate to method declarations and forwarding it on.
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I159505e50a9462d01066f14da0fcc29762bd5531
Reviewed-on: https://chromium-review.googlesource.com/1075267
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53826}
In the process:
- Add strict ordering of Types so that name mangling is consistent
and build time. Previously, the UnionType stored the union's
types in a std::set<const Type*>, which did not have a consistent
ordering of the types in the set.
- Add a int31 type to enable consistency and correctness of
handling of 'constexpr int31' values on the C++ side.
- By removing the "implicit" keyword for operators, there is now
one less difference between operators and calls, another
incremental step in unifying operators and calls.
- Enable external (i.e. C++-defined) generic specializations
- Add CSA support for checking double ElementsKinds, including
tests.
- Clean up some constexpr/non-constexpr handling of ElementsKinds.
Bug: v8:7793
Change-Id: I27699aba70b98ebf5466e5b62b045d7b1dad62c8
Reviewed-on: https://chromium-review.googlesource.com/1091155
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53664}
Whenever an Isolate is available on a variable, field, or method
parameter, use that instead of GetIsolate(). Also convert simple
cases of the one-argument handle constructor to either use an
available Isolate, or use GetIsolate() if their first parameter
is a variable.
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I52805905a9ca8729615ead78859f43d5e8f605f1
Reviewed-on: https://chromium-review.googlesource.com/1092853
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53629}
Currently we enable instrumentation if debugger is active. With this
approach we can not:
- capture async stack when debugger is disabled,
- avoid async instrumentation overhead when debugger is enabled and
async stacks are disabled.
R=dgozman@chromium.org,yangguo@chromium.org
Bug: none
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I19400c4c4e12b6c9b5a980fb6bd3293bac6e6a64
Reviewed-on: https://chromium-review.googlesource.com/1081494
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53530}
Removes all explicit calls to GetIsolate() in transitions.cc by passing
it through calling functions and implicit calls via the single argument
Handle constructor and handle function.
Unfortunately in the interests of making these changes vaguely
manageable, I've also pushed some new GetIsolates down into
objects-debug.cc, objects-printer.cc and objects.cc.
Bug: v8:7786
Change-Id: I1f98530dec6c004e17dc3336f3cef09fbb446bae
Reviewed-on: https://chromium-review.googlesource.com/1085451
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53518}
This is a reland of 515cc07d28
Original change's description:
> [csa] Ensure the requested allocation size fits in a Smi
>
> In CSA::AllocateRaw, ensure that the given allocation size fits into a
> Smi.
>
> Bug: chromium:848672
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: I4e74791296163188b1ca77cae8226a9833fba8ef
> Reviewed-on: https://chromium-review.googlesource.com/1084930
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53495}
TBR=yangguo@chromium.org,ishell@chromium.org
Bug: chromium:848672
Change-Id: I135868390784a0ee95ff42224dd00f66f3bf2d80
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1086828
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53512}
In CSA::AllocateRaw, ensure that the given allocation size fits into a
Smi.
Bug: chromium:848672
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I4e74791296163188b1ca77cae8226a9833fba8ef
Reviewed-on: https://chromium-review.googlesource.com/1084930
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53495}
see crbug.com/841460 , we recently hit some build issues when using
Goma + jumbo builds because of a conflict on the definition of CONST,
v8 defines it in globals.h and including windows.h also defines it. It
should be possible to fix this by adding a bunch of #undef CONST but it
seems a little bit hacky and might not always work (this could only fix
the problem temporary if the jumbo merge limit changes and cause some
include files to get included in a different order).
Renaming the v8 definition of CONST to kConst, this follows the
style guide guidelines: "there is no reason to change old code to use
constant-style names, unless the old names are actually causing a
compile-time problem"
(https://google.github.io/styleguide/cppguide.html#Enumerator_Names)
I also had to turn the PropertyConstness enum into an enum class to
avoid some conflicts (both PropertyConstness and VariableMode define
kConst).
Bug: chromium:841460
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2b70b9095374e88a5ae364cc557b39f20a3ab60f
Reviewed-on: https://chromium-review.googlesource.com/1064197
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sébastien Marchand <sebmarchand@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53413}
There are likely cleanups that can be done after this CL:
- context-related functions in the interpreter and compiler take ScopeInfo as
well as ScopeType and slot-count as input. The latter 2 should be directly
derived from the former. We should be able to drop FunctionContextParameters.
- ContextExtension is probably not needed anymore, since we now always have the
correct scope_info directly in the SCOPE_INFO_INDEX slot.
Bug: v8:7066
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67
Reviewed-on: https://chromium-review.googlesource.com/785151
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52952}
I missed one required change which was hidden behind an #if. The fix is in
the diff between Patch 1 and Patch 3.
Original message:
In this CL I remove the isolate from signatures of ExternalReference
accessor functions where the isolate is not used. The uses of the
isolate were already removed in previous CLs.
Changes:
* I split the ExternalReference list in external-reference.h into
those which need the isolate for initialization and those which do not.
* I removed the public constructors and replaced them by
ExternalReference::Create(). The reason is to separate external
creation more clearly from internal creation, because externally
created ExternalReferences sometimes need redirection, whereas
internally created ExternalReferences are just stored as they are.
In addition, by removing the isolate from the signature of the
public constructors, they suddenly exactly matched the interal
constructor.
* Replace all uses of the public constructors with
ExternalReference::Create().
* Remove the isolate from all call sites where necessary.
This is a step towards making WebAssembly compilation independent of
the isolate.
R=mstarzinger@chromium.org
Bug: v8:7570
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I750c162f5d58ed32e866722b0db920f8b9bd8057
Reviewed-on: https://chromium-review.googlesource.com/1026673
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52777}
This reverts commit 44ea425ab1.
Reason for revert: https://ci.chromium.org/buildbot/client.v8.ports/V8%20Arm%20-%20debug%20builder/13575
Original change's description:
> [refactoring] Remove the isolate from signatures of ExternalReferences
>
> In this CL I remove the isolate from signatures of ExternalReference
> accessor functions where the isolate is not used. The uses of the
> isolate were already removed in previous CLs.
>
> Changes:
> * I split the ExternalReference list in external-reference.h into
> those which need the isolate for initialization and those which do not.
>
> * I removed the public constructors and replaced them by
> ExternalReference::Create(). The reason is to separate external
> creation more clearly from internal creation, because externally
> created ExternalReferences sometimes need redirection, whereas
> internally created ExternalReferences are just stored as they are.
> In addition, by removing the isolate from the signature of the
> public constructors, they suddenly exactly matched the interal
> constructor.
>
> * Replace all uses of the public constructors with
> ExternalReference::Create().
>
> * Remove the isolate from all call sites where necessary.
>
>
> This is a step towards making WebAssembly compilation independent of
> the isolate.
>
> Bug: v8:7570
> R=mstarzinger@chromium.org
>
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: I14f511fc6acc50ab2d6a6641299f5ddbeabef0da
> Reviewed-on: https://chromium-review.googlesource.com/1018982
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52768}
TBR=mstarzinger@chromium.org,ahaas@chromium.org
Change-Id: I7c0d8d420f815cede23d550dee8942ac4d7791cc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7570
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1026570
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52769}
In this CL I remove the isolate from signatures of ExternalReference
accessor functions where the isolate is not used. The uses of the
isolate were already removed in previous CLs.
Changes:
* I split the ExternalReference list in external-reference.h into
those which need the isolate for initialization and those which do not.
* I removed the public constructors and replaced them by
ExternalReference::Create(). The reason is to separate external
creation more clearly from internal creation, because externally
created ExternalReferences sometimes need redirection, whereas
internally created ExternalReferences are just stored as they are.
In addition, by removing the isolate from the signature of the
public constructors, they suddenly exactly matched the interal
constructor.
* Replace all uses of the public constructors with
ExternalReference::Create().
* Remove the isolate from all call sites where necessary.
This is a step towards making WebAssembly compilation independent of
the isolate.
Bug: v8:7570
R=mstarzinger@chromium.org
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I14f511fc6acc50ab2d6a6641299f5ddbeabef0da
Reviewed-on: https://chromium-review.googlesource.com/1018982
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52768}
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.
This saves about 20KB of binary size on x64.
Original review: https://chromium-review.googlesource.com/c/v8/v8/+/959533
Originally landed as r52416 / f9a2e24bbc
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Id072cbe6b3ed30afd339c7e502844b99ca12a647
Reviewed-on: https://chromium-review.googlesource.com/1000540
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52492}
This reverts commit f9a2e24bbc.
Reason for revert: gc stress failures not all fixed by follow up.
Original change's description:
> [cleanup] Refactor the Factory
>
> There is no good reason to have the meat of most objects' initialization
> logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
> this CL changes the protocol between Heap and Factory to be AllocateRaw,
> and all object initialization work after (possibly retried) successful
> raw allocation happens in the Factory.
>
> This saves about 20KB of binary size on x64.
>
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
> Reviewed-on: https://chromium-review.googlesource.com/959533
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52416}
TBR=jkummerow@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,hpayer@chromium.org
Change-Id: Idbbc53478742f3e9525eee83342afc6aedae122f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/999414
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52420}
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.
This saves about 20KB of binary size on x64.
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
Reviewed-on: https://chromium-review.googlesource.com/959533
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52416}
Drive-by cleanup: remove megamorphic stub cache lookup support from generic property
store code. This lookup is no longer necessary because
1) fast stores to existing properties get all the information from the map,
2) transitioning store targets are taken directly from the transition array,
so in both cases there's no point in doing a store handler lookup.
Bug: v8:5988
Change-Id: I95c0a08e7d1a76bb0f4475a9bd685e4e11e16a48
Reviewed-on: https://chromium-review.googlesource.com/983921
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52349}
This is a reland of d8f564eac6TBR=mstarzinger@chromium.org,yangguo@chromium.org,jgruber@chromium.org
Original change's description:
> Reland: Remove SFI code field
>
> Remove the SharedFunctionInfo code field, inferring the code object
> from the function_data field instead. In some cases, the function_data
> field can now hold a Code object (e.g. some WASM cases).
>
> (Reland of https://chromium-review.googlesource.com/952452)
>
> TBR=mstarzinger@chromium.org
>
> Bug: chromium:783853
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: I10ea5be7ceed1b51362a2fad9be7397624d69343
> Reviewed-on: https://chromium-review.googlesource.com/970649
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52136}
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I5187851b923e9a92f43daf8cb99e662786cbb839
Reviewed-on: https://chromium-review.googlesource.com/975942
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52159}
Remove the SharedFunctionInfo code field, inferring the code object
from the function_data field instead. In some cases, the function_data
field can now hold a Code object (e.g. some WASM cases).
(Reland of https://chromium-review.googlesource.com/952452)
TBR=mstarzinger@chromium.org
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I10ea5be7ceed1b51362a2fad9be7397624d69343
Reviewed-on: https://chromium-review.googlesource.com/970649
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52136}
Remove the SharedFunctionInfo code field, inferring the code object
from the function_data field instead. In some cases, the function_data
field can now hold a Code object (e.g. some WASM cases).
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I1219a4d6aa5abaa9fee54dda883da7a3186e347a
Reviewed-on: https://chromium-review.googlesource.com/952452
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52064}
In general, TurboFan doesn't encounter phi nodes with only a single
data input in the backend. However, CSA-based builtins (especially
auto-generated ones, e.g. from Torque), may contain single-input phi nodes,
although outside the auto-generated case this doesn't happen much in practice.
Single input phi nodes (i.e. phis in blocks with one predecessor) don't have
any side effects and are essentially useless and harmless, but to avoid problems
in the backend of TurboFan (whose SSA deconstruction disallows control flow
splits that continue to blocks with phis), this CL tweaks the existing
CSA-only control flow and graph sanitization in the CSA path to ensure
no no-op phis.
Change-Id: I109f4dc6cde5ad1794585a09609a230b1848e0d5
Reviewed-on: https://chromium-review.googlesource.com/963711
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52056}
This is preparatory cleanup work for eventually tracking the functions
(rather than concrete closures) in the CALL_IC, also for builtins like
the default PromiseCapability [[Resolve]] and [[Reject]] functions. It
adds a new FeedbackCell type, which is used by JSFunctions consistently
now to reference the feedback vector (or undefined if not the function
is not compiled yet or is a native/asm.js function).
This also changes the calling convention for FastNewClosure builtin and
the JSCreateClosure operator in TurboFan to carry the FeedbackCell here
instead of the parent FeedbackVector and the slot index. In addition we
eliminate the now unused %InterpreterNewClosure runtime function.
Bug: v8:2206, v8:7253, v8:7310
Change-Id: Ib4ce456e276e0273e57c163dcdd0b33abf863656
Reviewed-on: https://chromium-review.googlesource.com/928403
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51474}
This introduces dedicated builtins
- FulfillPromise,
- RejectPromise, and
- ResolvePromise,
which perform the corresponding operations from the language
specification, and removes the redundant entry points and the
excessive inlining of these operations into other builtins. We
also add the same logic on the C++ side, so that we don't need
to go into JavaScript land when resolving/rejecting from the
API.
The C++ side has a complete implementation, including full support
for the debugger and the current PromiseHook machinery. This is to
avoid constantly crossing the boundary for those cases, and to also
simplify the CSA side (and soon the TurboFan side), where we only
do the fast-path and bail out to the runtime for the general handling.
On top of this we introduce %_RejectPromise and %_ResolvePromise,
which are entry points used by the bytecode and parser desugarings
for async functions, and also used by the V8 Extras API. Thanks to
this we can uniformly optimize these in TurboFan, where we have
corresponding operators JSRejectPromise and JSResolvePromise, which
currently just call into the builtins, but middle-term can be further
optimized, i.e. to skip the "then" lookup for JSResolvePromise when
we know something about the resolution.
In TurboFan we can also already inline the default PromiseCapability
[[Reject]] and [[Resolve]] functions, although this is not as effective
as it can be right now, until we have inlining support for the Promise
constructor (being worked on by petermarshall@ right now) and/or SFI
based CALL_IC feedback.
Overall this change is meant as a refactoring without significant
performance impact anywhere; it seems to improve performance of
simple async functions a bit, but otherwise is neutral.
Bug: v8:7253
Change-Id: Id0b979f9b2843560e38cd8df4b02627dad4b6d8c
Reviewed-on: https://chromium-review.googlesource.com/911632
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51260}
This avoids the ambiguous implicit conversion C++ compile
errors we had to fix with static_cast before.
Change-Id: I4247f617740f2b6d14d9588a902e0e25029a6726
Reviewed-on: https://chromium-review.googlesource.com/911629
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51217}
This reverts commit 14108f4c2e.
Reason for revert: Not the culprit for Canary microtask crashes
Original change's description:
> [builtins] Mega-revert to address the Dev blocker in crbug.com/808911.
>
> - Revert "[builtins] Save one word in contexts for Promise.all."
> This reverts commit 7632da067b.
> - Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
> This reverts commit d4f072ced3.
> - Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
> This reverts commit 6703dacdd6.
> - Revert "[debugger] Properly deal with settled promises in catch prediction."
> This reverts commit 40dd065823.
> - Revert "[builtins] Widen the fast-path for Promise builtins."
> This reverts commit db0556b7e8.
> - Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
> This reverts commit a582199c5e.
> - Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
> This reverts commit 6bf8885290.
> - Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
> This reverts commit 313b490ddd.
> - Revert "[builtins] Inline InternalPromiseThen into it's only caller"
> This reverts commit f7bd6a2fd6.
> - Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
> This reverts commit b23b098fa0.
> - Revert "[promise] Remove incorrect fast path"
> This reverts commit 0f6eafe855.
> - Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
> This reverts commit 8a677a2831.
> - Revert "[builtins] Refactor promises to reduce GC overhead."
> This reverts commit 8e7737cb58.
>
> Tbr: hpayer@chromium.org
> Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
> Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Reviewed-on: https://chromium-review.googlesource.com/906991
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Adam Klein <adamk@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51158}
Change-Id: I09d958cbebd635a325809072a290f2f53df8c5d4
Tbr: adamk@chromium.org,yangguo@chromium.org,bmeurer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/908988
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51181}
- Revert "[builtins] Save one word in contexts for Promise.all."
This reverts commit 7632da067b.
- Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
This reverts commit d4f072ced3.
- Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
This reverts commit 6703dacdd6.
- Revert "[debugger] Properly deal with settled promises in catch prediction."
This reverts commit 40dd065823.
- Revert "[builtins] Widen the fast-path for Promise builtins."
This reverts commit db0556b7e8.
- Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
This reverts commit a582199c5e.
- Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
This reverts commit 6bf8885290.
- Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
This reverts commit 313b490ddd.
- Revert "[builtins] Inline InternalPromiseThen into it's only caller"
This reverts commit f7bd6a2fd6.
- Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
This reverts commit b23b098fa0.
- Revert "[promise] Remove incorrect fast path"
This reverts commit 0f6eafe855.
- Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
This reverts commit 8a677a2831.
- Revert "[builtins] Refactor promises to reduce GC overhead."
This reverts commit 8e7737cb58.
Tbr: hpayer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/906991
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51158}
Instead of inlining NewPromiseCapability everywhere, we should have it
as a separate builtin that can be called. The motivation for doing so is
to reduce the overhead of the builtins and just share the slow-path
handling in a single place, plus this way we can also utilize the
NewPromiseCapability functionality from TurboFan optimized code
eventually.
Also remove the unused %new_promise_capability intrinsic and the builtin
backing it.
Bug: v8:7253
Change-Id: Ic7c916a11f12d063a645e2c25cc4120badee5640
Reviewed-on: https://chromium-review.googlesource.com/897804
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51036}
This implements the ideas outlined in the section "Microtask queue"
of the exploration document "Promise and async/await performance" (at
https://goo.gl/WHRar2), except that the microtask queue stays a linear
FixedArray for now, to avoid running into trouble with the parallel
scavenger. This way we can already save a significant amount of
allocations, thereby reducing the GC frequency quite a bit.
All items on the microtask queue are now proper structs that subclass
Microtask, i.e. we also wrap JSFunction and MicrotaskCallback jobs
into structs. We also consistently remember the context for every
microtask (except for MicrotaskCallback where we don't have a
context), and execute it later in exactly that context (as required
by the spec anyways for the Promise related jobs). Particularly
interesting is the PromiseReactionJobTask and its subclasses, since
they are designed to have the same size as the PromiseReaction. When
we resolve a JSPromise we just take the existing PromiseReaction
instances and morph them into PromiseFulfillReactionJobTask or
PromiseRejectReactionJobTask (depending whether you "Fulfill" or
"Reject"). That way the JSPromise class is now only 6 words instead
of 10 words.
Also the PromiseReaction and the reaction tasks can either carry a
JSPromise (for the fast native case) or a PromiseCapability (for the
generic case), which means we don't always pay the overhead of having
to also remember the "deferred resolve" and "deferred reject" handlers
that are only relevant for the generic case anyways.
It also fixes a spec violation where we called "then" before we actually
enqueued the PromiseResolveThenableJob, which is observably wrong.
Calling it later has the advantage that it should be fairly
straight-forward now to completely avoid it for native Promise
instances.
This seems to save around 10-20% on the various Promise benchmarks and
micro-benchmarks. We expect to gain even more as we're now able to
inline various operations into TurboFan optimized code easily.
Bug: v8:7253
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I893d24ca5bb046974b4f5826a8f6dd22f1210b6a
Reviewed-on: https://chromium-review.googlesource.com/892819
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50980}
Assembler::PopAndReturn expects an Integral type so convert argc from a
SMI if necessary.
On 64-bit architectures, convert 64-bit immediate pop values into
32-bit values. This is safe since the conversion checks that nothing
was truncated.
Also change CodeStubArguments unit tests to use PopAndReturn rather
than Return.
Change-Id: I91b47d2e81dc0504d185ad59752d638b1c3135a7
Reviewed-on: https://chromium-review.googlesource.com/867052
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50645}
Non-constant SMIs were being shifted to the right with SHR instead of SAR,
which caused corruption of negative offsets.
Add tests for SMI access to arguments using CodeStubArguments.
Change-Id: I6cc4fc0a5dd0018524f5ff4f16f9e9a21866363f
Reviewed-on: https://chromium-review.googlesource.com/854055
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50506}
