This is the same as the original implementation in https://crrev.com/c/2567534
which was speculatively reverted due to flaky tests. Since then, there have
been some changes to fix those tests, so trying to get this in again.
Bug: v8:11002
Change-Id: I5bd0f63d3aec4cf6db403b35737f8b695b0f4e37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2589063
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71746}
This CL implements Liftoff support for struct.get/set,
struct.new_with_rtt, rtt.canon, and ref.is_null, which
is enough to make the first testcase pass.
Bug: v8:7748
Change-Id: Id09e9872d2126127192c852b3cb6d57ff9417582
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2584951
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71744}
The original implementation of matching was a RegExp on the source
which wasn't able to reliably distinguish between comments inside
of string literals and actual comments. For that reason, it had
a special rule to disallow quotes to remove false positives.
Original comment:
> Also, ['"] are excluded from allowed URLs to avoid matches
> against sources that invoke evals with sourceURL.
After the code was moved into the scanner, that shouldn't be an
issue anymore - the scanner knows that this is a real comment and
isn't part of a string literal.
Allowing quotes enables a slightly smaller encoding of source maps,
specifically in the case where there are no sourceContents:
Non-base64 source maps can get away with effectively no encoding
overhead (they typically don't contain whitespace).
Change-Id: Iffa5df28d80656fa56e603e7c0e57aa1f44d0014
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2576801
Reviewed-by: Marja Hölttä <marja@chromium.org>
Auto-Submit: Jan Krems <jankrems@google.com>
Commit-Queue: Jan Krems <jankrems@google.com>
Cr-Commit-Position: refs/heads/master@{#71742}
I think this was likely fixed by one of the other bugfixes in the
meantime. It doesn't flake with 50k runs locally.
Fixed: v8:2008
Change-Id: I9e6f1e7f75cf20c52d49937d980aafacaa23b401
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2584945
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71715}
Add a method that returns the microtask queue that is being used
by the `v8::Context`.
This is helpful in non-monolithic embedders like Node.js, which
accept Contexts created by its own embedders like Electron, or
for native Node.js addons. In particular, it enables:
1. Making sure that “nested” `Context`s use the correct microtask
queue, i.e. the one from the outer Context.
2. Enqueueing microtasks into the correct microtask queue.
Previously, these things only worked when the microtask queue for
a given Context was the Isolate’s default queue.
As an alternative, I considered adding a way to make new `Context`s
inherit the queue from the `Context` that was entered at the time
of their creation, but that seemed a bit more “magic”, less flexible,
and didn’t take care of concern 2 listed above.
Change-Id: I15ed796df90f23c97a545a8e1b30a3bf4a5c4320
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2579914
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71710}
next_enumeration_index is the next free index available to store a
property. ObjectDescriptor tracks this field while instantiating the
literal and updates the next_enumeration_index when finalizing the
instantiation. When adding new properties (named / computed) we were
updating this value to the current value that is being used instead
of next free index. This cl fixes it.
Bug: chromium:1152231
Change-Id: Ica8c36dcabf035db559e29d4573ecd5e53d6062a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2577463
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71709}
Implementation is almost identical to x64, except that in the
instruction-selector, for AVX, we allow the second operand to
be a slot, and so we use InputOperand in the codegen.
Bug: v8:11008
Change-Id: I5b5ea4b5058dc0bf5ff1c24a67f9b787c5312106
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2576887
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71705}
This reverts commit cddaf66c37.
Reason for revert: Multiple fuzzer failures
TBR=neis@chromium.org,ahaas@chromium.org
Original change's description:
> [compiler][wasm] Align Frame slots to value size
>
> - Adds an AlignedSlotAllocator class and tests, to unify slot
> allocation. This attempts to use alignment holes for smaller
> values.
> - Reworks Frame to use the new allocator for stack slots.
> - Reworks LinkageAllocator to use the new allocator for stack
> slots and for ARMv7 FP register aliasing.
> - Fixes the RegisterAllocator to align spill slots.
> - Fixes InstructionSelector to align spill slots.
>
> Bug: v8:9198
>
> Change-Id: Ida148db428be89ef95de748ec5fc0e7b0358f523
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512840
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71644}
TBR=bbudge@chromium.org,neis@chromium.org,ahaas@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9198
Change-Id: Ib26d016df6f30f333d30b5ac14eed9630bba8252
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2584200
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71703}
Add fields to HeapOptions to denote on heap creation that the heap does
not support incremental/concurrent marking/sweeping.
This only applies to standalone heaps.
When triggering a GC (either explicitly or by the heap growing
heuristics), the given config is limited to not trigger unsupported
marking/sweeping types.
Bug: chromium:1156170
Change-Id: Id7b5cf82962e7c40920f942df9415d798e2b6686
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2581961
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71698}
So far we reported the script ID, but DevTools ignores that and uses the
source url instead. That url was just set to "wasm ", which the frontend
couldn't make any sense of.
This CL fixes this by passing the source URL to the code create event,
and also setting the position of the code inside the script (i.e.
wasm module).
R=thibaudm@chromium.org, petermarshall@chromium.org
Bug: chromium:1125986
Change-Id: Ic41dcd2768c60fd6748468d3a89fc4ffccb35932
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2581543
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71695}
Function prototypes can be lazily allocated. This means they go into the
temporary objects set that debug-eval uses to figure out if a write
will be side-effect free.
We were incorrectly classifying writes to function prototypes as
side-effect free because the prototype happened to be lazily allocated
when we first accessed it during debug-eval, but was actually reachable
from the function (not allocated temporarily).
To do this we introduced a way to temporarily turn off the temporary
object tracking, and we use it when lazily allocating function
prototypes.
This could mean that we incorrectly report side-effects when writing to
function prototypes for functions which were themselves created during
debug-eval side-effect free mode. However, it's unclear if this is a
problem, because function declarations set global variables which would
already throw due to side-effects.
Bug: chromium:1154193
Change-Id: I444a673662095f6deabaafdce3cdf3d86b71446d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2581968
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71692}
Add new macro-assembler instructions that can handle both AVX and SSE.
In the SSE case it checks that dst == src1. (This is different from that
the AvxHelper does, which passes dst as the first operand to AVX
instructions.)
Sorted SSSE3_INSTRUCTION_LIST by instruction code.
Header additions are added by clangd, we were already using something
from those headers via transitive includes, adding them explicitly gets
us closer to IWYU.
Codegen sequences are from https://github.com/WebAssembly/simd/pull/380
and also
https://github.com/WebAssembly/simd/pull/380#issuecomment-707440671.
Bug: v8:11086
Change-Id: I4c04f836e471ed8b00f9ff1a1b2e6348a593d4de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2578797
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71688}
Implement vclt and add some assembler tests.
Bug: v8:10983
Change-Id: I78c701180ddc90af4b59db86a25188f281167366
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575783
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71685}
Looks like this was accidentally added in https://crrev.com/c/979952.
The file is not loaded by any other test, hence we don't need the
dependency.
R=machenbach@chromium.org
Cq-Include-Trybots: luci.v8.try:v8_android_arm64_n5x_rel_ng
Change-Id: I02f25924980c02e6091bd5d275763adb66bd0b27
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2578977
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71682}
We currently report "wasm " as the source URL on all wasm code, with no
position information. This will change in a follow-up CL. To make that
difference visible, extend a test to show the URL and position reported
for wasm code.
R=thibaudm@chromium.org
Bug: chromium:1125986
Change-Id: I09f1820d591f27c1ff3c2acb41f8e279ac08a9e7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575071
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71680}
Since there is no dependence defined in gn, the other file will not be
uploaded to android devices for testing.
We could add this dependence, but not selectively for the one test which
actually needs that dependence. Hence fix it by duplicating the test
body instead.
R=mslekova@chromium.orgCC=machenbach@chromium.org
Change-Id: Ic65eea05a865cf4f521f66e293c4725bc2861444
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2577475
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71679}
Add new instruction vpaddl for signed and unsigned integers, adding
assembler, disassembler, simulator support, and also tests.
The signed and unsigned opcodes for vpaddl are separate enums, because
the helper EncodeNeonUnaryOp only takes a NeonSize (not NeonDataType). I
considered changing the signature, but none of the other instructions
use a NeonDataType, so it seems unnecessary.
Bug: v8:11086
Change-Id: I5e6694ae407779c1fd3604c5a40ca0a1b6ce061b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2578233
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71671}
The GDB-stub for Wasm debugging (which builds with the flag
v8_enable_wasm_gdb_remote_debugging) doesn't build anymore after a few changes
in the interface of wasm::DebugInfo.
This CL fixes the build, and also adds a few small changes to the protocol.
Change-Id: I250a8c86fd83048434e68cbdc5cb8ae243577393
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2571341
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Philip Pfaffe <pfaffe@chromium.org>
Commit-Queue: Paolo Severini <paolosev@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#71669}
Currently, GetConsName incorrectly includes the null terminator as part
of the length used in the string's hash. Exclude this to be consistent
with GetCopy, GetName, etc. and permit coalescing.
Bug: v8:0
Change-Id: I1e8a4eb7055637f3ed178014725b44e84d7788b6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2578192
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Andrew Comminos <acomminos@fb.com>
Cr-Commit-Position: refs/heads/master@{#71667}
Prototype v128.{load,store}{8,16,32,64}_lane on Big Endian machines.
Lood/Stores need to be reversed manually on BE machines and as such
LoadLane and StoreLane opcodes cannot be done in a single instruction.
Therefore we divide them into separate "Load/Store" and "operation"
nodes.
Bug: v8:10975
Change-Id: If21c9663de41b872fe035d15526830f244605c48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2577820
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#71665}
This is a reland of ab4d9717f2.
The original CL did a std::move before the final use of the NativeModule.
PS2 removes that.
TBR=petermarshall@chromium.org, thibaudm@chromium.org
Original change's description:
> [wasm] Pass the script ID to code logging
>
> We didn't pass a script ID with the code creation events for profiling.
> This made DevTools lose the connection to the wasm script, hence
> jumping from the profiler entry to the source did not work.
>
> This CL changes the timing of code logging a bit such that the script is
> always allocated before logging. In the queue of code to be logged we
> then also store the script ID, and finally set it on the {CodeEntry}
> object.
>
> R=thibaudm@chromium.org
>
> Bug: chromium:1125986
> Change-Id: I2248c1d520bc819436bbe732373f7a3446b64f48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575057
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71654}
Bug: chromium:1125986
Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng
Change-Id: I2a7c5fe04fff726836b1279e3d05b1702a4efb76
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2578980
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71663}
This is a reland of 064ee3c835
Issue 1: WasmEngine UAF when CompilationState is destroyed
asynchronously
Fix: Include https://chromium-review.googlesource.com/c/v8/v8/+/2565508
in this CL. Use OperationBarrier to keep WasmEngine alive.
Issue 2: In gin, JobTask lifetime is not extended beyond
JobHandle, thus making CancelAndDetach unusable.
This is fixed in chromium here:
https://chromium-review.googlesource.com/c/chromium/src/+/2566724
Original change's description:
> Reland "[wasm]: Use CancelAndDetach and barrier on BackgroundCompileJob."
>
> Reason for revert: Data race:
> https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/34121
>
> It was assume that MockPlatform runs everything on 1 thread. However,
> MockPlatform::PostJob previously would schedule the job through
> TestPlatform, which eventually posts concurrent tasks, thus causing
> data race.
> Fix: Manually calling NewDefaultJobHandle and passing the MockPlatform
> ensures the jobs also run sequentially.
>
> Additional change:
> - CancelAndDetach is now called in ~CompilationStateImpl() to make sure
> it's called in sequence with ScheduleCompileJobForNewUnits
>
> Original CL description:
> To avoid keeping around a list of job handles, CancelAndDetach() is
> used in CancelCompilation. Dependency on WasmEngine is handled by a
> barrier that waits on all jobs to finish.
>
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2498659
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Original-Commit-Position: refs/heads/master@{#71074}
> Change-Id: Ie9556f7f96f6fb9a61ada0e5cbd58d4fb4a0f571
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2559137
> Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71459}
TBR=ulan@chromium.org
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_isolates_rel_ng
Change-Id: I6175092c97fea0d5f63a97af232e2d54cccea535
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2569360
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71662}
This reverts commit ab4d9717f2.
Reason for revert: UBSan issues: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan/14184/overview
Original change's description:
> [wasm] Pass the script ID to code logging
>
> We didn't pass a script ID with the code creation events for profiling.
> This made DevTools lose the connection to the wasm script, hence
> jumping from the profiler entry to the source did not work.
>
> This CL changes the timing of code logging a bit such that the script is
> always allocated before logging. In the queue of code to be logged we
> then also store the script ID, and finally set it on the {CodeEntry}
> object.
>
> R=thibaudm@chromium.org
>
> Bug: chromium:1125986
> Change-Id: I2248c1d520bc819436bbe732373f7a3446b64f48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575057
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71654}
TBR=petermarshall@chromium.org,clemensb@chromium.org,thibaudm@chromium.org
Change-Id: I03c90c77b55e770797a6d66b1d778992a047e07a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1125986
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575070
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71660}
Adds support for generating code to migrate instances if a map
is a migration target, to dynamic check maps.
BUG=v8:10582
Change-Id: Id26d95491869fc68a5633398d230237eb88648d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575058
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71658}
We didn't pass a script ID with the code creation events for profiling.
This made DevTools lose the connection to the wasm script, hence
jumping from the profiler entry to the source did not work.
This CL changes the timing of code logging a bit such that the script is
always allocated before logging. In the queue of code to be logged we
then also store the script ID, and finally set it on the {CodeEntry}
object.
R=thibaudm@chromium.org
Bug: chromium:1125986
Change-Id: I2248c1d520bc819436bbe732373f7a3446b64f48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575057
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71654}
Although every Primitive is a Data, the Cast operations for the
subclasses of Primitive do not allow casting directly from Data to the
subclasses without first going through Value. Because of this,
Primitives extracted from a V8::FixedArray require two casts to get to
the "real" type.
Thus, as a convenience to embedders, this change makes it possible to
cast directly from Data to all the subtypes of Primitive.
Also, this change makes the parameter names in the declarations match
those in the definitions, though there does not seem to be a universally
followed convention regarding these.
Bug: v8:10958
Change-Id: I18dc3fbb9a9bccb2cb3b75efd829af64d46d8eb9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2573816
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Dan Clark <daniec@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#71649}
Import wrappers were only logged if logging was enabled during
compilation. If the profiler is enabled later, and regular wasm code is
logged via {NativeModule::LogWasmCodes}, the import wrappers were
missing.
This CL fixes the long-standing TODO, and adds tests which triggered
that code path. Those tests were hanging before because the expected
functions did never appear in the profile.
Drive-by: If {WasmEngine::LogOutstandingCodesForIsolate} detects that
code logging is disabled by now, it should still clear the {code_to_log}
vector.
R=thibaudm@chromium.org
Bug: chromium:1125986, chromium:1141787
Change-Id: I2566ef369bb61a09488f2d932b6c10d92e4cb12f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2574696
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71645}
- Adds an AlignedSlotAllocator class and tests, to unify slot
allocation. This attempts to use alignment holes for smaller
values.
- Reworks Frame to use the new allocator for stack slots.
- Reworks LinkageAllocator to use the new allocator for stack
slots and for ARMv7 FP register aliasing.
- Fixes the RegisterAllocator to align spill slots.
- Fixes InstructionSelector to align spill slots.
Bug: v8:9198
Change-Id: Ida148db428be89ef95de748ec5fc0e7b0358f523
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512840
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71644}
Previously V8 would wrap the WebAssembly.Memory backing stores into
Uint8Arrays and report that as memories, but that's confusing to the
developer, since that's not what's really being used. The way that
DevTools presents the backing stores of memories, it's still perfectly
possible to get hold of an Uint8Array if that's what the developer is
looking for.
To make it possible to easily identify the WebAssembly.Memory objects
in the DevTools front-end (in particular for the memory inspector) we
add a 'webassemblymemory' subtype to the Chrome DevTools Protocol. We
also improve the description for the memories to include the number
of active pages.
Fixed: chromium:1155566
Screenshot: https://imgur.com/8enx57u.png
Change-Id: I63dbabe0e372e9ad6dcc8e6642cdb743147a620c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2574699
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71641}
Prototype v128.{load,store}{8,16,32,64}_lane on arm.
Bug: v8:10975
Change-Id: I649f567f39f8a5ba6992a86b761f93f62619c139
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2565079
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71628}
This is a reland of 716dae3ae0
Original change's description:
> [wasm-simd][ia32] Prototype sign select
>
> The implementation is the same as on x64.
>
> Bug: v8:10983
> Change-Id: I2654ce4a627ca5cc6c759051ab9034c528d9f25a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2567194
> Reviewed-by: Bill Budge <bbudge@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71606}
Bug: v8:10983
Change-Id: I05af92ec2d3531dd2e0d27353cc665967fb5c387
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2574001
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71627}
We currently do not report a script ID for wasm code, i.e. the script id
is 0. We cannot just print the script ID itself, as it is considered
unstable. Thus this CL only makes us print whether it is set or not.
In a follow-up CL where we fix setting script IDs for wasm code events
the output will change.
R=thibaudm@chromium.org
Bug: chromium:1125986
Change-Id: Ibc52829ea8a5a5c9506e36390eb4c608bcab4624
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2571120
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71616}
