This is a reland of commit 76a07814b2
Changes compared to original:
- Add WasmArray::SetTaggedElement, which uses write barriers.
- In Factory::NewWasmArrayFromElementSegment, the new array may have
moved to OldSpace until it is initialized. Therefore, it needs write
barriers; use the new method for that.
- Small readability improvements.
Original change's description:
> [wasm-gc] Implement array.init_from_elem
>
> Bug: v8:7748
> Change-Id: I65dbb496302045820063bd0f4f9ea054e6a645bd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695580
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81128}
Bug: v8:7748
Change-Id: Ic5def1886f662bddce72b8eaea274eb5e8ec0c68
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3704513
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81196}
This is a partial reland of https://crrev.com/c/3597106 , except for the
changes in compiler.cc, which are just the minimal possible changes to
make the code compile.
With this change, it is possible that a call to
CompilationCache::LookupScript returns any of:
1. A Script and a toplevel SharedFunctionInfo (cache hit)
2. A Script but no toplevel SharedFunctionInfo (partial cache hit)
3. Nothing (cache miss)
Bug: v8:12808
Change-Id: Id33a4cd0cb28562d6b862fbb113ea9d03f255b2b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687425
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#81193}
The CL fixes PMF regressions that happend after increasing
the AgeTable size.
Bug: chromium:1336529
Change-Id: If1f099b43bfcb3a8c7dd4a1c229fcb08735eb744
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3707098
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81180}
This CL explicitly disables the --freeze-flags-after-init flag for cases
where we modify flags after initialization. This is only tests, fuzzers,
and special options to d8, thus not security relevant.
These should be the last blockers for enabling the flag globally.
R=cbruni@chromium.org
Bug: v8:12887
Change-Id: I1d8a03dcc20e524d30c967f6fe15f6401de77612
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3706619
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81179}
This is a reland of commit dac6155649
This is a straight-up reland with no changes, because:
1) The failure doesn't reproduce locally
2) The failing flaky test that triggered the revert is not related
to the code modified by this CL and should (in theory) not be
impacted.
Original change's description:
> [inspector] Allow Debugger.setScriptSource to edit top-most function
>
> This CL adds a new boolean flag on the Debugger.setScriptSource CDP
> method that gets piped all the way through to the live-edit mechanism.
> The new flag enables live-editing of the top-most function while
> paused.
>
> The CL adds a couple of tests that cover the new core use cases for
> this flag.
>
> R=jarin@chromium.org
>
> Bug: chromium:1334484
> Change-Id: I12fec591b2b6550d89748714620e629548e1b9c1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695354
> Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81127}
Bug: chromium:1334484
Change-Id: I9a9bf7e03d81c86adb4819b9756dd9afcf6fa021
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3706398
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81171}
CreateJob() is similar to PostJob() but doesn't schedule anything
until Join() or Notify*() is called.
This allows
- CreateJob().Join() without too many worker.
- Early 'empty' CreateJob() for initialization
without causing spurious calls to GetMaxConcurrency()
Bug: chromium:1287665
Change-Id: I8fd8b139392ad30218f0cf8f580b2d76f1078777
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3668842
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81166}
For FixedDoubleArrays that are not aligned on 8 bytes, the SIMD fast
path of array.IndexOf actually falls back on a scalar loop. Because of
how this loop was written, it was failing to see that 0.0 == -0.0.
Bug: chromium:1335445
Change-Id: Idf70fd3ed9950e5b2b7cc72bb2ebca6879b3a04e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702803
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81163}
"Function:" and "LazyCompile:" are confusing by now and use up too
much space.# Enter a description of the change.
This also changes the function names visible when using linux-perf
Change-Id: Ib2d4b7df39068c27b5b06db578fc550d2973ebb4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693705
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81161}
The names we returned in WasmOpcodes::OpcodeName(...) for Atomics opcodes
did not match the spec. This patch fixes that.
This matters in particular when we want to provide disassembly of
modules.
Bug: v8:6532
Change-Id: Ia8791feee617b75d598ad373bafba7da5687f523
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3704496
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81142}
We already make code pages writable & executable for concurrent
Sparkplug. We can use the same mechanism for sweeping of code pages on
the background thread, instead of scheduling incremental tasks on the
main thread. This allows us to remove almost all special
handling for code pages in the sweeper and allows us to off-load more
work from the main thread.
Bug: v8:12967
Change-Id: Idb8e9f8e2eadbec26a386f2de683a80087f671f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695557
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81139}
This CL adds serialization and deserialization
support for ArrayBuffer and TypedArray.
TODOs:
- Support resizable ArrayBuffer.
- Support detached ArrayBuffer.
- Support shared ArrayBuffer.
Bug: v8:11525
Change-Id: Ic9267a78e427ee20d55f2f0483b677eeee5c214b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688896
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81136}
The native module cache makes it difficult to test deserialization,
because the native module just gets loaded from the cache instead of
deserializing the serialized module. This CL adds a new flag,
--wasm-native-module-cache-enabled, to control whether the native module
cache is enabled or not. The cache gets disabled by handling all modules
like asm.js modules when the cache gets disabled, as the cache is not
used for asm.js.
The name of the flag is positive (i.e.
`enabled` instead of `disabled`) to avoid double negation. The flag is
true by default, and set to false in tests.
R=thibaudm@chromium.orgCC=clemensb@chromium.org
Bug: v8:12964
Change-Id: If2b96a95ccf37f2eb8a868ad1661c3325c1048f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3703836
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81132}
This reverts commit dac6155649.
Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20no-concurrent-marking/9288/overview
Original change's description:
> [inspector] Allow Debugger.setScriptSource to edit top-most function
>
> This CL adds a new boolean flag on the Debugger.setScriptSource CDP
> method that gets piped all the way through to the live-edit mechanism.
> The new flag enables live-editing of the top-most function while
> paused.
>
> The CL adds a couple of tests that cover the new core use cases for
> this flag.
>
> R=jarin@chromium.org
>
> Bug: chromium:1334484
> Change-Id: I12fec591b2b6550d89748714620e629548e1b9c1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695354
> Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81127}
Bug: chromium:1334484
Change-Id: I165269d6c1b001b516f10ae3716ffb57b675ab39
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3705378
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Owners-Override: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81130}
This CL adds a new boolean flag on the Debugger.setScriptSource CDP
method that gets piped all the way through to the live-edit mechanism.
The new flag enables live-editing of the top-most function while
paused.
The CL adds a couple of tests that cover the new core use cases for
this flag.
R=jarin@chromium.org
Bug: chromium:1334484
Change-Id: I12fec591b2b6550d89748714620e629548e1b9c1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695354
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81127}
This is a reland of commit 7787ed2007
Updates since original: specified that cctest sources depend on
generated files from the inspector.
Original change's description:
> Build cctest while building V8
>
> I noticed in a recent build that C++ files from cctest didn't start
> compiling until after several slow non-parallel tasks such as running
> mksnapshot and linking v8_for_testing. I don't see any reason that
> cctest sources should wait for those tasks, so in this change I propose
> adjusting the build dependencies for more parallelism.
>
> Change-Id: I2472117c8555ac397fa1232954c8b699d6429d38
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690170
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#80976}
Change-Id: I9f507c3c07bda1638b81de4b1ac82afda1168999
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3699405
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81112}
This is a reland of commit c8c176190a
This CL includes:
- crrev.com/c/3679846 Add condition use_ic to the removing the optimized OSR code logic
- crrev.com/c/3686589 Add out of bytecode array to break condition of removing OSR code cache logic
- Add JumpLoop nesting level 0 to break condition of removing OSR code cache logic
- Change to use Deoptimizer::DeoptimizeFunction() to deoptimize OSR code
Original change's description:
> [compiler] Remove the optimized OSR code if deoptimizing at inside of loop
>
> If the optimized code is deoptimized and the deoptimized exit offset is
> inside of the optimized OSR code related loop, the optimized OSR code is
> also out of date, remove the optimized OSR code, it will avoid hit the
> optimized OSR code and soon later deoptimization of the optimized OSR
> code.
> This CL will reduce deoptimization. E.g. Deoptimization of JetStream2
> case navier-stokes function addFields is reduced from twice to once.
>
> Change-Id: I5bbf3039e916c3736b5b967d1f36b6ea90cfd40b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3648219
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Tao Pan <tao.pan@intel.com>
> Cr-Commit-Position: refs/heads/main@{#80826}
Bug: chromium:1330444
Change-Id: I97a466ddfa764438b45f33c6ae33cb921d57278d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690451
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Tao Pan <tao.pan@intel.com>
Cr-Commit-Position: refs/heads/main@{#81110}
We don't need to reset the entire age table, but merely the pages that
are known to contain young objects. This must improve memory use with
generational GC enabled.
The CL is a prerequisite for another CL that'll increase the size of
the age-table.
Bug: chromium:1029379
Change-Id: Ibb5b607af20380c3936b7396b3d9767f6f17c44b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695268
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81106}
Add a new --wasm-max-module-size flag to replace the unused and more
specific --experimental-wasm-allow-huge-modules flag.
The new flag can be used in fuzzers to reduce the maximum allowed module
size, avoiding OOM on some systems (like 32-bit ASan builds).
R=ahaas@chromium.org
Bug: chromium:1334577
Change-Id: I2830d407c5b01be21a47b21392c1210061c40b20
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695267
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81102}
This CL extends the live edit mechanism to allow editing the function
that is currently on top of the stack, as long as that call frame is
the only activation of that function.
The CL changes how we look for functions on the current JS stack:
Instead of starting at thread_local_top we start at the frame we
are currently paused in. This is possible since there can not be any
JavaScript frames above the current "break frame", only C++ frames
which are not relevant for live edit.
If the edited script modifes the top-most function, the inspector
will trigger a restart of that call frame. That is why we check
if we can actually restart the function and only allow the live
edit to go through if that is the case.
Note that this CL also adds a kill switch in the form of a runtime
flag for this feature, in case we need to pull the plug and disable
this feature again via back-merge.
R=jarin@chromium.org
Bug: chromium:1334484
Change-Id: I711913df96c8acc786ad4de28de804d2f90e1847
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695353
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81097}
... which might fail because usual operator== for tagged values compares
only lower 32 bits of the pointer.
Bug: v8:11880, v8:12958
Change-Id: I0978d6c510424aecfee2f044c40ea424b6cb3ab9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695593
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81096}
Already after enabling Liftoff, the name did not match the semantics any
more. The callback was called after top-tier finished, not after initial
compilation of the module finished.
With dynamic tiering, the name is even less fitting.
This CL renames the "OnModuleCompiled" callback in the API to
"MoreFunctionsCanBeSerialized", which makes it more obvious what the
API should be used for. It also internally renames all related typedefs
and methods accordingly.
One call of the callback in the streaming decoder was already wrong
before this CL and is being removed.
R=jkummerow@chromium.org, cbruni@chromium.org
Bug: v8:12899
Change-Id: I95c0fc9e32442383e47e4370e31277cc065bf0fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687689
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81093}
Adds Module::GetStalledTopLevelAwaitMessage() API which searches for
modules that have no pending async dependencies but have not yet
resolved. An embedder may call this API when they are about to exit
to check if TLA evaluation has stalled and provide a better error
message.
Change-Id: I3b88802f70cc84c973551f13d73ef3e3d06f4027
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2341765
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81080}
In particular, this CL adds support for:
- exception handling
- source positions
- OSR
- various numeric operations and conversions
Since the test suite now passes with `--turboshaft`, this also adds a
new variant for Turboshaft and enables it on some bots.
Bug: v8:12783
Change-Id: Ia2dd2e16f56fc955d49e51f86d050218e70cb575
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3669251
Reviewed-by: Darius Mercadier <dmercadier@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81074}
Add a missing check to reject illegal sections.
The test is added in three forms, to give fuzzers more food: A fuzzer
regression test for the streaming fuzzer, a unit test for the streaming
decoder, and an mjsunit test for streaming compilation.
Drive-by: Remove a redundant line in the synchronous decoder (this is
already handled by the following statement.
R=ahaas@chromium.org
Bug: chromium:1335023
Change-Id: Ic8c3b301f1b58981c7d68eafcffc89531ed2c64c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3698549
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81071}
