Commit Graph

64602 Commits

Author SHA1 Message Date
Bill Budge
2bc09b8916 Revert "[wasm-simd][scalar-lowering] Enable some spec tests"
This reverts commit cfe9544aa6.

Reason for revert: Some spec tests fail:
https://ci.chromium.org/p/v8/builders/ci/V8%20Arm%20-%20debug/15933

Original change's description:
> [wasm-simd][scalar-lowering] Enable some spec tests
> 
> These tests can now be enabled as we implemented more scalar lowering
> support.
> 
> Bug: v8:10507
> Change-Id: Ida5f896300e074db079ec24720302729b0582d9d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2411774
> Reviewed-by: Bill Budge <bbudge@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70006}

TBR=bbudge@chromium.org,zhin@chromium.org

Change-Id: Idb2da40178860f045ffab9ab5b2c8b1f2ebafcf6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10507
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2419036
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70010}
2020-09-18 19:41:23 +00:00
Bill Budge
66f1bf7bc2 Revert "[d8] Avoid recursive unhandled rejected Promise processing"
This reverts commit 66e4c99c82.

Reason for revert: Causes TSAN data races:
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20isolates/11350

Original change's description:
> [d8] Avoid recursive unhandled rejected Promise processing
> 
> Bug: chromium:1126309
> Change-Id: I9d9d33cd151ed8af5ee8af09b8957eae9df2dcb1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410059
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Auto-Submit: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69986}

TBR=cbruni@chromium.org,verwaest@chromium.org

Change-Id: I39e6e40ade8d0fd8d3260d41513e68b4763753fe
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1126309
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2419034
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70009}
2020-09-18 18:12:05 +00:00
Frank Tang
b6693635cf [intl] Fix ubsan problem in Intl.Segmenter.
Cast to int32_t after checking the range.

Bug: v8:10921

Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_asan_rel_ng,v8_linux64_tsan_isolates_rel_ng,v8_linux64_msan_rel_ng,v8_linux64_tsan_rel_ng,v8_mac64_asan_rel_ng,v8_win64_asan_rel_ng,v8_linux64_gcc_compile_dbg,v8_linux_gcc_compile_rel,v8_linux_gcc_rel_ng,v8_linux64_gc_stress_custom_snapshot_dbg_ng,v8_linux_arm64_gc_stress_dbg_ng,v8_linux_gc_stress_dbg_ng,v8_mac64_gc_stress_dbg_ng;luci.chromium.try:linux_chromium_ubsan_rel_ng

Change-Id: I9c3631a2f3aa34bc9c87a6f40a2888b38832978c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414622
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70008}
2020-09-18 18:11:01 +00:00
Ng Zhi An
fa12fa738f [wasm-simd][arm64] Fix vregister format for pmin/pmax
Bug: v8:10904
Bug: chromium:1129706
Change-Id: I11a06ed3afbc9d11ad0956392758c22484a9ea1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418995
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70007}
2020-09-18 18:07:56 +00:00
Ng Zhi An
cfe9544aa6 [wasm-simd][scalar-lowering] Enable some spec tests
These tests can now be enabled as we implemented more scalar lowering
support.

Bug: v8:10507
Change-Id: Ida5f896300e074db079ec24720302729b0582d9d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2411774
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70006}
2020-09-18 18:06:10 +00:00
Ng Zhi An
75b7db7470 [arm][simulator] Fix vmin implementation
vmin should return the default NaN if any input is a NaN (regardless of
the default NaN mode), so turn the default NaN mode, canonicalize, then
reset it.

Bug: v8:10835
Change-Id: Ia83c9fbcbc2070029f35bbd07cbb4abf857b594d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416399
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@{#70005}
2020-09-18 16:52:50 +00:00
Ng Zhi An
e95e3f1252 [wasm-simd][liftoff][arm][arm64] Implement floating-point roundings
Implement f32x4 and f64x2 nearest, trunc, ceil, and floor for arm and
arm64. arm implementation will check for ARMv8 support, and bail out to
runtime call if not supported.

Bug: v8:10906
Change-Id: Ia473f63de3717d02d4cea2fc888befb3681e20aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415769
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70004}
2020-09-18 16:40:45 +00:00
Sathya Gunasekaran
8161dabd1e [ic] Reorder feedback vector to have deprecated maps at the end
This will allow minimorphic ICs the best chance of succeeding as they
only check the first FLAG_max_minimorphic_map_checks maps in the
feedback vector.

Bug: v8:10582
Change-Id: I1c78dcc8b6f7072b2563fdc8bf69b349a99c4bb5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2400340
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70003}
2020-09-18 16:39:41 +00:00
Ng Zhi An
d0805bad99 [wasm-simd][arm] Fix incorrect comment in pmin/pmax
Change-Id: Ibd414806c5f8688486fec169d523876d0ef74c8f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415047
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70002}
2020-09-18 16:37:01 +00:00
Manos Koukoutos
a5f68abef6 [wasm-gc] Preparation for typed function tables
Changes:
- Rename IsSignatureEqual -> MatchesSignature for consistency
- Add WasmInstanceObject field to WasmTableObject.
- Improve some error messages related to tables in
  function-body-decoder-impl.h.
- Introduce WasmTable::IsValidTableType. Use it wherever appropriate.
- Overload equality operators in HeapType to work with
  HeapType::Representation.
- Rename DynamicTypeCheckRef -> TypecheckJSObject.
- Handle WasmCapiFunctions in TypecheckJSObject.
- Use TypecheckJSObject in WasmTableObject::IsValidElement.
- A few more minor improvements.

Bug: v8:9495
Change-Id: I2867dd3486d7c31717ac26b87a50e15cf2b898be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416491
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70001}
2020-09-18 16:03:04 +00:00
Tobias Tebbi
0832a1093d Reland^5 "[flags] warn about contradictory flags"
This is a reland of 2000aea58a
Changes compared to last reland:
- Add rule in variants.py for --enable_experimental_regexp_engine.
- Make sure --abort-on-contradictory-flags works as well as --fuzzing
  to disable the checking for fuzzers, including for d8 flags.

Original change's description:
> Reland^4 "[flags] warn about contradictory flags"
>
> This is a reland of 0ba115e6a9
> Changes compared to last reland:
> - Fix Python code trying to write to expected_outcomes, which is now a
>   computed property.
> - Fix remaining place in d8.cc that ignored the --fuzzing flag.
> - Expect flag contradictions for --cache in code_serializer variant.
>
> Original change's description:
> > Reland^3 "[flags] warn about contradictory flags"
> >
> > Changes:
> > - Also allow second parameter influenced by --cache to be reassigned.
> > - Fix --stress-opt to only --always-opt in the last iteration as before.
> >
> > Original change's description:
> > > Reland^2 "[flags] warn about contradictory flags"
> > >
> > > This is a reland of d8f8a7e210
> > > Change compared to last reland:
> > > - Do not check for d8 flag contradictions in the presence of --fuzzing
> > > - Allow identical re-declaration of --cache=*
> > >
> > > Original change's description:
> > > > Reland "[flags] warn about contradictory flags"
> > > >
> > > > This is a reland of b8f9166664
> > > > Difference to previous CL: Additional functionality to specify
> > > > incompatible flags based on GN variables and extra-flags, used
> > > > to fix the issues that came up on the waterfall.
> > > >
> > > > This also changes the rules regarding repeated flags: While
> > > > explicitly repeated flags are allowed for boolean values as long
> > > > as they are identical, repeated flags or explicit flags in the
> > > > presence of an active implication are disallowed for non-boolean
> > > > flags. The latter simplifies specifying conflict rules in
> > > > variants.py. Otherwise a rule like
> > > >
> > > > INCOMPATIBLE_FLAGS_PER_EXTRA_FLAG = {
> > > >   "--gc-interval=*": ["--gc-interval=*"],
> > > > }
> > > >
> > > > wouldn't work because specifying the same GC interval twice
> > > > wouldn't actually count as a conflict. This was an issue with
> > > > test/mjsunit/wasm/gc-buffer.js, which specifies
> > > > --gc-interval=500 exactly like the extra flag by the stress bot.
> > > >
> > > > Also, this now expands contradictory flags checking to d8 flags
> > > > for consistency.
> > > >
> > > > Original change's description:
> > > > > [flags] warn about contradictory flags
> > > > >
> > > > > Design Doc: https://docs.google.com/document/d/1lkvu8crkK7Ei39qjkPCFijpNyxWXsOktG9GB-7K34jM/
> > > > >
> > > > > Bug: v8:10577
> > > > > Change-Id: Ib9cfdffa401c48c895bf31caed5ee03545beddab
> > > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154792
> > > > > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > > > > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> > > > > Reviewed-by: Georg Neis <neis@chromium.org>
> > > > > Reviewed-by: Tamer Tas <tmrts@chromium.org>
> > > > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > > > Cr-Commit-Position: refs/heads/master@{#68168}
> > > >
> > > > Bug: v8:10577
> > > > Change-Id: I268e590ee18a535b13dee14eeb15ddd0a9ee8341
> > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235115
> > > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > > Reviewed-by: Tamer Tas <tmrts@chromium.org>
> > > > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > > > Reviewed-by: Georg Neis <neis@chromium.org>
> > > > Cr-Commit-Position: refs/heads/master@{#68989}
> > >
> > > Bug: v8:10577
> > > Change-Id: I31d2794d4f9ff630f3444210100c64d67d881276
> > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2339464
> > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#69339}
> >
> > Bug: v8:10577
> > 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: I4a69dc57a102782cb453144323e3752ac8278624
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2352770
> > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#69433}
>
> Change-Id: Ib6d2aeb495210f581ac671221c265df58e8e5e70
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2398640
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Tamer Tas <tmrts@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69954}

Bug: v8:10577
TBR: clemensb@chromium.org, tmrts@chromium.org
Change-Id: Iab2d32cdcc2648934fc52255ccf3ae3ec9ca4d9b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416386
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70000}
2020-09-18 15:45:00 +00:00
Peter Marshall
15a78f9773 Revert "Reland "[cpu-profiler] Log OSR code when starting the profiler""
This reverts commit 8b60d8fcbf.

Reason for revert: Flaky on windows: https://ci.chromium.org/p/v8/builders/ci/V8%20Win32%20-%20debug/27302

Original change's description:
> Reland "[cpu-profiler] Log OSR code when starting the profiler"
> 
> This is a reland of f696528189
> 
> Updated the test:
> 1. Set profiling interval to 100us to get 10x the samples
> 2. Guarantee we spend at least 1ms per iteration, instead of only
> bailing out if we spend more than 1ms. This gives us enough samples on
> release mode.
> 3. Increase the time spent profiling optimized code by 50% to make sure
> we have a big enough difference.
> 
> With 1000 iterations I didn't see any flakes locally so this looks solid
> now.
> 
> Original change's description:
> > [cpu-profiler] Log OSR code when starting the profiler
> >
> > OSR code doesn't hang off any JSFunction or SFI, so we missed it when
> > starting up the profiler. This meant we didn't properly attribute
> > ticks to SFI code. The ticks ended up going to the caller instead.
> >
> > There is a weak cache of OSR code per native context, so iterate that
> > on profiler startup and log all the code objects.
> >
> > Change-Id: I2e9738b86a488b37f36ac89803561607dc76f745
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414216
> > Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> > Reviewed-by: Mythri Alle <mythria@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#69964}
> 
> Change-Id: Ib506e88b546008e462967259763bbf985b74b462
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418092
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69990}

TBR=mythria@chromium.org,petermarshall@chromium.org,dinfuehr@chromium.org

Change-Id: Ie3272c4fd297ca6f10a47c3fe8826e226a9f0545
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418714
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69999}
2020-09-18 15:15:33 +00:00
Dominik Inführ
91c562ee03 [heap] Use ManualGCScope for test
Ensures that there is no concurrent allocation happening.

Bug: v8:10315
Change-Id: Ief40cbde9d859e3a2eea66d6e4437d7f0e3840e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418951
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69998}
2020-09-18 15:11:51 +00:00
Almothana Athamneh
a07be284e1 Add Linux TSAN bots without concurrent marking
Bug: v8:10875
Change-Id: I9e7e688b3a490d680157d824183d6b8899116838
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418394
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69997}
2020-09-18 13:52:19 +00:00
Dominik Inführ
cedd022d39 [heap] Reset mememory pressure after full GC
GCs should reset memory pressure back to none on GC. Especially with
background threads calling MemoryPressureNotification to start a
collection.

Bug: v8:10315
Change-Id: I4dbda71e8434eb7949c0f9b978662b32910133cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418400
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69996}
2020-09-18 13:48:29 +00:00
Toon Verwaest
c0564971ac [parser] Use SmallVector(1) for DeclarationParsingResult::declarations
Typically we'll parse a single declaration when parsing variable declarations.
Using on-stack storage rather than std::vector that requires malloc is much
more efficient.

Change-Id: Id99515bb4ce7ea2dae46498f8f9f9d49c33c7353
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418393
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69995}
2020-09-18 12:42:39 +00:00
Leszek Swirski
0c1b530b68 [offthread] Lock StringTable::NumberOfElements
Keep TSAN happy by locking the string table NumberOfElements read (only
on heap counters and in the startup serializer), which can be modified
by background threads that add elements.

Bug: v8:10928
Change-Id: I411af5f9642b0cafce291344d26351ff18d2301e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418392
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69994}
2020-09-18 12:40:09 +00:00
Maya Lekova
027e58888e Revert "[heap] Fix tracking of code pages for V8 stack unwinder"
This reverts commit af5f437cd9.

Reason for revert: Seems to break TSAN - https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/33286?

Original change's description:
> [heap] Fix tracking of code pages for V8 stack unwinder
> 
> When a compaction space allocates a new code page, that pages needs to
> be added to the Isolate::code_pages_ array used for stack unwinding.
> Since the array is owned by the main thread, compaction thread cannot
> directly modify it. Because of that code pages are added upon merging
> of the compaction space to the main spage in MergeLocalSpace.
> 
> The bug was that all code pages coming from the compaction space
> were added to the code_pages_ array. However, some of the pages are
> not newly allocated but merely borrowed from the main space.
> 
> This CL introduces a new page flag for marking pages that are borrowed
> during compaction and skips them in MergeLocalSpace.
> 
> Bug: v8:10900
> Change-Id: I786dc5747bd7c785ae58dfd8b841c00774efb15e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416500
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69992}

TBR=ulan@chromium.org,jkummerow@chromium.org,dinfuehr@chromium.org

Change-Id: I13f8b64014750af95423166152dc9bee8cec12d0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10900
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418395
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69993}
2020-09-18 12:39:05 +00:00
Ulan Degenbaev
af5f437cd9 [heap] Fix tracking of code pages for V8 stack unwinder
When a compaction space allocates a new code page, that pages needs to
be added to the Isolate::code_pages_ array used for stack unwinding.
Since the array is owned by the main thread, compaction thread cannot
directly modify it. Because of that code pages are added upon merging
of the compaction space to the main spage in MergeLocalSpace.

The bug was that all code pages coming from the compaction space
were added to the code_pages_ array. However, some of the pages are
not newly allocated but merely borrowed from the main space.

This CL introduces a new page flag for marking pages that are borrowed
during compaction and skips them in MergeLocalSpace.

Bug: v8:10900
Change-Id: I786dc5747bd7c785ae58dfd8b841c00774efb15e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416500
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69992}
2020-09-18 12:08:19 +00:00
Sathya Gunasekaran
6443a79f55 [ic] Optimize IC::UpdatePolymorphicIC
Instead of iterating over the pair of map and handlers twice -- once
to extract them into a vector, second to process them from the vector
-- combine the two passes into one.

Bug: v8:10582
Change-Id: I4c238b494789ae270798f33302b94b1ec02c7fc8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2400338
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69991}
2020-09-18 12:00:09 +00:00
Peter Marshall
8b60d8fcbf Reland "[cpu-profiler] Log OSR code when starting the profiler"
This is a reland of f696528189

Updated the test:
1. Set profiling interval to 100us to get 10x the samples
2. Guarantee we spend at least 1ms per iteration, instead of only
bailing out if we spend more than 1ms. This gives us enough samples on
release mode.
3. Increase the time spent profiling optimized code by 50% to make sure
we have a big enough difference.

With 1000 iterations I didn't see any flakes locally so this looks solid
now.

Original change's description:
> [cpu-profiler] Log OSR code when starting the profiler
>
> OSR code doesn't hang off any JSFunction or SFI, so we missed it when
> starting up the profiler. This meant we didn't properly attribute
> ticks to SFI code. The ticks ended up going to the caller instead.
>
> There is a weak cache of OSR code per native context, so iterate that
> on profiler startup and log all the code objects.
>
> Change-Id: I2e9738b86a488b37f36ac89803561607dc76f745
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414216
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69964}

Change-Id: Ib506e88b546008e462967259763bbf985b74b462
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418092
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69990}
2020-09-18 11:36:38 +00:00
Dominik Inführ
6701d5904f [heap] Disable some tests with --stress-concurrent-allocation
Tests aren't compatible with concurrent allocation on background threads.

Bug: v8:10315
Change-Id: I376e98858fa1aacf1689e6791985774299def319
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418391
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69989}
2020-09-18 10:53:41 +00:00
Leszek Swirski
695d9b64ff [snapshot] Reland recent de/serializer related changes
This reverts commit 1aa9ab7384.

The reverted CL chain had an issue where ThinStrings could accidentally
end up in compilation artifacts, causing issues down the line with ICs
that expected direct internalized strings.

The reason for this bug was that forward references to internalized
strings were resolved before PostProcessNewObject. When this happened,
the internalized string A would be written to the field where it was
previously deferred, then PostProcessNewObject would change string A to
string A', and update string A to a ThinString.  This means any _future_
back references to A would see the ThinString and follow it to receive
A', but any _past_ forward references would keep pointing to the
ThinString A.

This reland fixes this by preventing InternalizedString deferral, so
that all references to InternalizedStrings are back references. It also
adds some additional verification to the heap verifier that constant
pools and object boilerplate descriptors aren't allowed to hold thin
strings.

This patch also fixes an additional bug in the original CL, where weak
forward refs weren't being serialized with a weak prefix.

Original change's description:
> Revert recent de/serializer related changes
>
> They are suspected to be causing Canary crashes, confirmed through
> local reverts and repro attempts.
>
> This reverts:
> - "Reland "[serializer] Change deferring to use forward refs""
>   commit 76d684cc82.
> - "Reland "[serializer] Remove new space""
>   commit 81231c23a9.
> - "[serializer] Clean-up and de-macro ReadDataCase"
>   commit c06d24b915.
> - "[serializer] DCHECK deserializer allocations are initialized"
>   commit fbc1f32d8e.
>
> Bug: chromium:1128872
> Change-Id: Id2bb3b8fac526fdf9ffb033222ae08cd423f8238
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414220
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69955}

Tbr: jgruber@chromium.org,dinfuehr@chromium.org
Bug: chromium:1075999
Bug: chromium:1127610
Bug: chromium:1128848
Bug: chromium:1128872
Bug: chromium:1128957
Change-Id: I8b7bbabf77eb8cb942a28316afbfaa5f9a0aa4cb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418101
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69988}
2020-09-18 10:14:59 +00:00
Camillo Bruni
262fbcbeb8 [test][d8] Add d8.log.getAndStop helper
The new helper function allows us to write tests for log parsing
without the need of first generating a log file.
This makes it easier guard against errors when the log format changes.

- add d8.log.getAndStop helper
- add basic log test
- fix test that regresses due to changed gc timing

Bug: v8:10668
Change-Id: Ie57171fa98fe90428b89c26289d55fcbf2a70615
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2403245
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69987}
2020-09-18 09:49:39 +00:00
Camillo Bruni
66e4c99c82 [d8] Avoid recursive unhandled rejected Promise processing
Bug: chromium:1126309
Change-Id: I9d9d33cd151ed8af5ee8af09b8957eae9df2dcb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410059
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69986}
2020-09-18 09:47:08 +00:00
Michael Lippautz
7156aa29f9 snapshot: Fix processing embedder graph
Fix merging of detachedness state.

Drive-by: Split lookup and merging of nodes.

Bug: chromium:1110816
Change-Id: I27dba7a6f22c75e5aae130d8cec01ccf755fad79
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416492
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69985}
2020-09-18 08:53:08 +00:00
Michael Achenbach
375579f940 [test] Remove entry of renamed builder
The builder was renamed here:
https://chromium-review.googlesource.com/c/v8/v8/+/2418093

No-Try: true
Change-Id: I0b437cb854d56c903609109a21827b34b6dd4a94
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2418094
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69984}
2020-09-18 08:50:48 +00:00
Michael Achenbach
165d8f5b5a Prepare renaming "V8 Linux64 TSAN - concurrent marking" bot
... to "V8 Linux64 TSAN - stress-incremental-marking" since it runs
with --stress-incremental-marking (and concurrent marking is on by
default anyways).

No-Try: true
Change-Id: I4660151cde2fb9e873cc046c1baf6578ab835eb7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416385
Commit-Queue: Georg Neis <neis@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69983}
2020-09-18 08:07:28 +00:00
Tobias Tebbi
cbc1fefeb5 [torque] create constexpr versions for class types
This enables defining abstract type subtypes of classes
with constexpr version, which in turn is useful to model
custom C++ subclasses.

Bug: v8:7793
Change-Id: I07dcb62121afdddfbe2c78ecc870afcb11800c19
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2412180
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69982}
2020-09-18 07:51:00 +00:00
Manos Koukoutos
2b60b8d497 [wasm-gc] Extend js-compatible signatures to include typed functions
Changes:
- Extend IsJSCompatibleSignature to include typed functions.
- Generalize WasmIsValidFuncRefValue to WasmIsValidRefValue, utilize
  DynamicTypeCheckRef. Use it in FromJS.
- Extend DynamicTypeCheckRef to eqRef type and WasmJSFunction
  references.
- Update call-ref.js test.

Change-Id: I71166ab8c1e716c21e79776c561e77b443add1da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2412527
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69981}
2020-09-18 07:10:38 +00:00
v8-ci-autoroll-builder
6761678736 Update V8 DEPS.
Rolling v8/build: b5fefa9..153ad0b

Rolling v8/third_party/aemu-linux-x64: cw5KjATCqXEo2ji2ep1Vx88VOe8DdIMAsfq3dV86XzYC..QxDL1Bk85zKmALn9xHGhro_uZAytSTHjJ--QwZLaT7oC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/d03abd8..0de9874

Rolling v8/third_party/depot_tools: a787cd5..d949c91

Rolling v8/third_party/icu: d7eebbf..79326ef

Rolling v8/tools/clang: 06a2576..92b3622

TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I8d2b7ca89e949a3ed77a7ed6fb88df8068ebe4e5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416142
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#69980}
2020-09-18 03:46:18 +00:00
Zhao Jiazhong
669e9f052f [mips][wasm-simd][liftoff] Implement floating-point roundings
Port 7f65469318
https://chromium-review.googlesource.com/c/v8/v8/+/2411691

Change-Id: I8b06288b003d99d1ee76415aee3fafd5cd963ae7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415852
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69979}
2020-09-18 02:48:38 +00:00
Etienne Pierre-doray
69951fa707 [Jobs API]: Expose JobDelegate::IsJoiningThread.
To let the user do special handling on the main thread e.g. Scavenging
uses different tracing categories for background/foreground threads.

Change-Id: I6c9187fd6201b5b81cd83727727fda49fcf7ff68
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2405797
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69978}
2020-09-17 16:49:07 +00:00
Milad Fa
0eb3e25d79 AIX: skip simd interpreter tests due to a gcc bug
ceilf and truncf do not preserve the sign bit when its input
is passed by value and the output is rounded to 0:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97086

Change-Id: I10b963e3193f1754f31f3bfc415b8a82d4ae011c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416240
Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#69977}
2020-09-17 16:47:18 +00:00
Clemens Backes
d88568eb3e [wasm] Speed up waiting for events
In many cases, the event we are waiting for already happened. In that
case, entering the {ExecuteCompilationUnits} function creates
significant overhead.

This CL fixes this by just checking whether the event we are waiting for
already happened, and returning early in that case. This should restore
the original performance before https://crrev.com/c/2351671.

R=thibaudm@chromium.org

Bug: v8:10922
Change-Id: I5229808162a3b348bbbb067bd10065894c8a655c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414028
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69976}
2020-09-17 16:12:48 +00:00
Ng Zhi An
baad346049 [wasm-simd][liftoff][arm][arm64] Implement pmin pmax
Implement f32x4.pmin, f32x4.pmax, f64x2.pmin, and f64x2.pmax for arm and
arm64.

Bug: v8:10904
Change-Id: Ife8b832dfc21850c2c292b0d6446b7dd3f6d9849
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415109
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69975}
2020-09-17 16:04:53 +00:00
Andreas Haas
8414fd56ed [wasm][liftoff] Implement write barrier for global.set on arm platforms
R=ulan@chromium.org, thibaudm@chromium.org

Bug: v8:7581
Change-Id: Ie41f09339a1f5c022bd74fb3140ca66f40cc4476
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2412185
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69974}
2020-09-17 15:36:47 +00:00
Dominik Inführ
433b4984e0 [logging] Make Logger::SetUp and TearDownAndGetLogFile thread-safe
While so far this should only happen in tests in test-log.cc, it can
happen that background threads using Logger::is_logging() race with
Logger::TearDownAndGetLogFile().

Fix the race by protecting is_logging_ with the mutex that is also used
for writing log messages. Logger::is_logging_ now becomes relaxed
atomic, such that code for logging isn't required to lock the mutex
to check whether logging is enabled.

Also remove Log::IsEnabled() in favor of Logger::is_logging() to avoid
checking both flags since both are the same.

Bug: v8:10315
Change-Id: Ic14e7f74334eb8a8438abad82ad227d1e6752bb8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416488
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69973}
2020-09-17 14:47:47 +00:00
Milad Fa
c436607b3c PPC/s390: [wasm-simd][liftoff][ia32][x64] Implement floating-point roundings
Port 7f65469318

Original Commit Message:

    Implement f32x4 and f64x2 nearest, trunc, ceil, and floor for ia32 and
    x64. arm and arm64 will follow in a future patch, now they just bail out
    into a runtime call.

R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Ida97cc498661a1f87dee95914fc4b7e75e55de80
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416232
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#69972}
2020-09-17 14:43:27 +00:00
Omer Katz
58ca454f51 cppgc: Support incremental marking without non-nested tasks
For the standalone library, some platform implementations might not
support non-nested tasks. We can still offer incremental marking in
such cases using regular tasks and without assuming an empty stack.
(cppgc's default platform e.g. doesn't support non-nested tasks.)

This CL also updates GCInvoker to not trigger an incremental GC if we
won't be able to finalize it. That makes finalizing through an
non-nested incremental task safe.

Bug: chromium:1056170
Change-Id: I85f0c9f2efe643cb87dd65d80417eea0d6ee5d52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414217
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69971}
2020-09-17 12:07:17 +00:00
Michael Achenbach
2eb6b4bb67 [flags] Prepare contradictory-flags warning
Bug: v8:10577
Change-Id: Ia546984711fa47978dafa139cce7a0388ef5c347
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416369
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69970}
2020-09-17 11:16:57 +00:00
Peter Marshall
5575bd6621 Revert "[cpu-profiler] Log OSR code when starting the profiler"
This reverts commit f696528189.

Reason for revert: Test is flaky: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64/39092

Original change's description:
> [cpu-profiler] Log OSR code when starting the profiler
> 
> OSR code doesn't hang off any JSFunction or SFI, so we missed it when
> starting up the profiler. This meant we didn't properly attribute
> ticks to SFI code. The ticks ended up going to the caller instead.
> 
> There is a weak cache of OSR code per native context, so iterate that
> on profiler startup and log all the code objects.
> 
> Change-Id: I2e9738b86a488b37f36ac89803561607dc76f745
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414216
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69964}

TBR=mythria@chromium.org,petermarshall@chromium.org,dinfuehr@chromium.org

Change-Id: I1e69f8af88d901bab6f257652d3536d24a4777f9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415994
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69969}
2020-09-17 09:09:28 +00:00
Dominik Inführ
6101e9c2e9 [logging] Move first IsEnabled() check into NewMessageBuilder()
IsEnabled() is checked before and after taking the lock. Move the first
check into NewMessageBuilder() to make this more obvious to the reader.

Bug: v8:10315
Change-Id: Iee1000a209f3ae7d07884f1cbb4e0daf43a58a9f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414227
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69968}
2020-09-17 09:08:27 +00:00
Shu-yu Guo
5eeea05d35 Use local instead of global Handles in async module builtins
Bug: v8:9344
Change-Id: I6f0bb4fa81f70c5c2f8744c153d5662c576d23d0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414786
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69967}
2020-09-17 08:53:17 +00:00
Santiago Aboy Solanes
4093cf3ee9 [compiler] Partially replace SourceTextModule with direct reads
Replace the SourceTextModuleRef::GetCell method.

Bug: v8:7790
Change-Id: I65e2f121b9d37c39e5d208d68409f61724ce198e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410192
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69966}
2020-09-17 08:15:57 +00:00
Santiago Aboy Solanes
0c59168425 [compiler] Replace Cell with direct reads
Bug: v8:7790
Change-Id: I2f0c2fdcb44c216471a8778816b9e041478f0792
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410191
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69965}
2020-09-17 08:08:17 +00:00
Peter Marshall
f696528189 [cpu-profiler] Log OSR code when starting the profiler
OSR code doesn't hang off any JSFunction or SFI, so we missed it when
starting up the profiler. This meant we didn't properly attribute
ticks to SFI code. The ticks ended up going to the caller instead.

There is a weak cache of OSR code per native context, so iterate that
on profiler startup and log all the code objects.

Change-Id: I2e9738b86a488b37f36ac89803561607dc76f745
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2414216
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69964}
2020-09-17 08:05:37 +00:00
Zeynep Cankara
fa5a65adbc [tools][system-analyzer] Clarify tool Instructions
This CL updates the tool instructions to reflect changes in the tool.
Removes the empty <br> tags from the tool's panel templates.

Bug: v8:10644, v8:10727

Change-Id: I0b3db6adcd37518f9cdaf2839094ef86eff52dfb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2413253
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Cr-Commit-Position: refs/heads/master@{#69963}
2020-09-17 06:02:32 +00:00
v8-ci-autoroll-builder
eec34b405e Update V8 DEPS.
Rolling v8/build: be363dc..b5fefa9

Rolling v8/third_party/aemu-linux-x64: 8YjsZy1I3YIJIOUKErXW54SHjiEX62hd9SqYjmop19oC..cw5KjATCqXEo2ji2ep1Vx88VOe8DdIMAsfq3dV86XzYC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/0063ad8..d03abd8

Rolling v8/third_party/depot_tools: 52fdd1f..a787cd5

Rolling v8/third_party/icu: 79326ef..d7eebbf

Rolling v8/tools/clang: e075ddd..06a2576

TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I03cb09a9bca4db0c5bca354f24c18a6dbb4cbbee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2415111
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#69962}
2020-09-17 04:08:12 +00:00
Ng Zhi An
7f65469318 [wasm-simd][liftoff][ia32][x64] Implement floating-point roundings
Implement f32x4 and f64x2 nearest, trunc, ceil, and floor for ia32 and
x64. arm and arm64 will follow in a future patch, now they just bail out
into a runtime call.

Bug: v8:10906
Change-Id: I8c90ba6825e0360ca1251a1f706f9dbcba7afdbf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2411691
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69961}
2020-09-16 22:59:19 +00:00