Commit Graph

77927 Commits

Author SHA1 Message Date
v8-ci-autoroll-builder
14777f6bf9 Update V8 DEPS (trusted)
Rolling v8/build: 843261b..cf385c0

Rolling v8/buildtools: 92ea83b..9e95466

Rolling v8/buildtools/third_party/libc++/trunk: e73c465..d128f2b

Rolling v8/third_party/depot_tools: 421c4fe..18bdadc

Rolling v8/third_party/fuchsia-sdk/sdk: version:9.20220916.1.1..version:9.20220917.2.1

Rolling v8/tools/clang: c3b78bc..b118dfd

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: I0474c3176189c9245220bf5682a75e78cb20d8da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3903332
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#83285}
2022-09-18 04:03:10 +00:00
v8-ci-autoroll-builder
bab48a7599 Update V8 DEPS (trusted)
Rolling v8/build: b001130..843261b

Rolling v8/buildtools: 813d569..92ea83b

Rolling v8/buildtools/linux64: git_revision:e70d8c3d5620bc0ddcbad23a36b1b26f815ca90a..git_revision:cc28efe62ef0c2fb32455f414a29c4a55bb7fbc4

Rolling v8/buildtools/third_party/libc++/trunk: e2f63a1..e73c465

Rolling v8/buildtools/third_party/libunwind/trunk: 60a480e..77b82eb

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c067655..fcf15b9

Rolling v8/third_party/depot_tools: dca14bc..421c4fe

Rolling v8/third_party/fuchsia-sdk/sdk: version:9.20220915.2.1..version:9.20220916.1.1

Rolling v8/third_party/zlib: 7d7ed92..8f22e90

Rolling v8/tools/luci-go: git_revision:c93fd3c5ebdc3999eea86a7623dbd1ed4b40bc78..git_revision:78063b01b53dd33a541938207b785cc86d34be37

Rolling v8/tools/luci-go: git_revision:c93fd3c5ebdc3999eea86a7623dbd1ed4b40bc78..git_revision:78063b01b53dd33a541938207b785cc86d34be37

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: Iab1835ab4d720c4499485def6680f8cbed20fa90
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3901693
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#83284}
2022-09-17 03:54:19 +00:00
Frank Tang
87adde1bae [test262] Roll test262
7461973..9215420

Bug: v8:7834
Change-Id: I5f830a59c57133b3c0ebe7633b60c20b00caa3ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3902516
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83283}
2022-09-17 00:55:09 +00:00
Frank Tang
96f67bb1c5 [Intl] Sync to intl-numberformat-v3 PR107
Return fallback while the useGrouping is "true" or "false"
but throw RangeError not in the list.

https://github.com/tc39/proposal-intl-numberformat-v3/pull/107

Bug: v8:13271
Change-Id: Ia325cd8fe74ff9fb501fd765e9ec2d94f8c97e38
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3886070
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83282}
2022-09-16 20:52:26 +00:00
Frank Tang
4b0e8569cc [Temporal] Add ParseTimeZoneIdentifier ParseCalendarName to parser
Needed for https://chromium-review.googlesource.com/c/v8/v8/+/3893552
and also https://chromium-review.googlesource.com/c/v8/v8/+/3901196

Bug: v8:11544
Change-Id: Ieb946abde1c623e9edcca608d737e8bf65a34637
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3901195
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83281}
2022-09-16 20:44:37 +00:00
Dominik Inführ
89e19b8696 [heap] Set up allocation in shared spaces for --shared-space
This CL unifies the fields for shared spaces for both the shared
isolate and the shared space isolate-approach. This allows to mostly
avoid separate code paths for both implementations.

While this CL already sets up everything needed for allocation with
--shared-space, allocation isn't fully working with this CL due to
other remaining issues.

Bug: v8:13267
Change-Id: Icdb40ed7045e33e6acbb97d3838fa374e6c24a2e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3892786
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83280}
2022-09-16 19:49:46 +00:00
Michael Lippautz
defa678e8b cppgc: Be more conservative in Seeper::FinishIfOutOfWork
Finalizing sweeping can be beneficial to truly end a GC cylce. We
should only finalize in `FinishIfOutOfWork()` though if that would not
introduce any jank. Limit the amount of executing finalizers in that
scenario.

Bug: v8:13294
Change-Id: I0237f6b6017d444c457923d83e85147c58586445
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3902222
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83279}
2022-09-16 17:57:27 +00:00
Leon Bettscheider
f81d0ca6e5 [heap] Process PageMarkingItems on incremental marking start
This CL adds processing of the OLD_TO_NEW RememberedSet
during minor incremental marking start.

Bug: v8:13012
Change-Id: I4fd051087d46e1b8a22b735bf0cae6d2da2ecb5b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3885875
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Leon Bettscheider <bettscheider@google.com>
Cr-Commit-Position: refs/heads/main@{#83278}
2022-09-16 17:18:57 +00:00
Teodor Dutu
17b903a22e [ptr-compr-8gb] Align allocation sizes to 8 bytes
In order to support a larger heap cage (8GB, 16GB), the cage offset
will take up more than 32 bits. As a consequence, for 8GB cages, the
least significant bit of the cage offset will overlap with the most
significant bit of the tagged offset. To avoid this, allocations need
to be aligned to 8 or 16 bytes to free up one or two bits from the
offset.

The allocation top is kept properly aligned without adding fillers in
the newly created gaps, by aligning allocation sizes to 8 bytes.

Bug: v8:13070
Change-Id: I169b51e583d7a4be61d2a6c6060fcf74b410703c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3877147
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Teo Dutu <teodutu@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83277}
2022-09-16 15:54:36 +00:00
Clemens Backes
50504b168d [wasm] Skip low-resolution time samples
In multiple counters we have peaks in the 0 microseconds and 1000
microseconds bucket, most probably coming from clients with a
low-resolution clock. Exclude those to get more precise timings.

R=jkummerow@chromium.org

Change-Id: I9b8377354920db4d0070198f440b57a7e86dc7bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3902221
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83276}
2022-09-16 15:25:13 +00:00
Manos Koukoutos
45d4d220d2 [wasm] Move js-to-wasm wrappers to the isolate
We move js-to-wasm wrappers to a WeakFixedArray in the isolate,
indexed by their canonical type index. This ensures that they are
reused across instances, and get GC'd when no longer needed.
We also remove eager compilation of wrappers.
This CL fixes some issues that were caused by out-of-bounds accesses
to wrapper arrays attached to module objects.

Bug: chromium:1363859, chromium:1363895

Change-Id: Idec0925e775f51fdfa7cd380379b0d1798295a0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3893860
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83275}
2022-09-16 15:08:53 +00:00
Manos Koukoutos
1135c0fca4 [wasm-gc][liftoff] Check for null before calling CallRefIC
Bug: v8:7748, chromium:1364036
Change-Id: I0263a21671fc602127aaae3b3ce022190be91407
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899295
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83274}
2022-09-16 14:33:13 +00:00
Milad Fa
08cbf4e4e5 PPC [liftoff]: Implement simd shift operations
Change-Id: Id27959b1e65b86e6d00bd67f637d14a4606a9765
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899300
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#83273}
2022-09-16 14:24:13 +00:00
Leszek Swirski
aabcb150c3 [maglev] Re-enable stack-slot reuse by default
Looks like we hammered on the regalloc hard enough that this works again
🥳

Bug: v8:7700
Change-Id: I4f02417e069e3a6d89ca0c8c43ba165a502150e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899302
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83272}
2022-09-16 14:17:53 +00:00
Clemens Backes
0b8d71264a [owners] Add mliedtke to COMMON_OWNERS
R=verwaest@chromium.org
CC=​mliedtke@chromium.org

Change-Id: I1a0b65b14a26f82ae6e86b10344019e1e21bd8f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3898935
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83271}
2022-09-16 14:12:27 +00:00
Clemens Backes
498cc55cd4 [api] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=jkummerow@chromium.org

Bug: v8:12887
Change-Id: Ia17d668b3ddcbcb7a35388231aa5d80e8e5b419b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899122
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83270}
2022-09-16 13:22:43 +00:00
Michael Lippautz
488b0ff1f5 cppgc-js: Fix DCHECK around completing sweeping
We only complete sweeping when the young generation GC is enabled.

Change-Id: I915acce35d6ba16716c2c4ee4130f99af0744f83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3900377
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83269}
2022-09-16 13:10:03 +00:00
Michael Lippautz
25c6d74ed7 cppgc: Limit sweeping on allocation if possible
Align slow path allocation with V8 in that:
1. Try to refill from the free list.
2. Perform limited sweeping of a space if necessary and retry the free
   list.
3. Try to expand the space.
4. Perform full sweeping of a space if necessary and retry the free
   list.
5. Finish sweeping fully as we would anyways do a GC at this point.
6. Retry the free list again
7. Try expanding again as finishing sweeping may have freed up pages.

Specifically, this adresses a performance problem where we would fully
sweep the whole heap, possibly causing 100ms of jank on allocation. In
such cases the new approach maintains performance and stays fast at the
expense of using more memory.

Allocations usually find memory in 1.-3. Steps 4.-7. are slow paths
that are definitely expensive but prevent failing with OOM.

Bug: v8:13294
Change-Id: I56133fa4cbbc74f8abcdec49c7e10125c2dbc3e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899260
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83268}
2022-09-16 13:00:04 +00:00
Clemens Backes
30a218b37f [web-snapshot] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=marja@chromium.org

Bug: v8:12887
Change-Id: Ie6e725305db09f675da255a0da73d85e2a36298b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3900374
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83267}
2022-09-16 12:52:17 +00:00
Tobias Tebbi
6809ef209b [turboshaft] stage behind --future
Bug: v8:12783
Change-Id: I723438d4843861b5933f1ea1f649ae426a2a1c04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899125
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Reviewed-by: Darius Mercadier <dmercadier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83266}
2022-09-16 12:43:53 +00:00
Clemens Backes
555b0562ac [sandbox] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=saelo@chromium.org

Bug: v8:12887
Change-Id: I7e41e1952958936c32fec501b8348fac0538cd71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899269
Reviewed-by: Samuel Groß <saelo@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83265}
2022-09-16 12:26:26 +00:00
Clemens Backes
d6bde5d963 [parsing] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=marja@chromium.org

Bug: v8:12887
Change-Id: Id315d33eee6b45e457766b0ba06c9d21c1e32807
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899268
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83264}
2022-09-16 12:25:23 +00:00
Clemens Backes
2523e6c1d6 [handles] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=dinfuehr@chromium.org

Bug: v8:12887
Change-Id: Icc9e1d2db58999b676477924284f78043cf5533c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899124
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83263}
2022-09-16 12:17:26 +00:00
Tobias Tebbi
1047e423a2 [turboshaft] restructure MachineRepresentation and MachineType
Bug: v8:12783
Change-Id: I5de98493d67c7c797d4a1b2dcd18c0347821f0f8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870471
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83262}
2022-09-16 12:14:44 +00:00
Clemens Backes
52f55f38f2 [date] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=ishell@chromium.org

Bug: v8:12887
Change-Id: I2ef25bc50fdf12f0149f2cdfce7102f2cc0f25d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899196
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83261}
2022-09-16 12:04:13 +00:00
Dominik Inführ
77866f695a [heap] Add Isolate::shared_heap_isolate() and has_shared_heap()
Isolate::shared_isolate() was used in many locations to check for the
shared heap feature. Now that we also have shared_space_isolate()
checking shared_isolate() isn't sufficient anymore.

This CL replaces many invocations of this method with either
has_shared_heap() or shared_heap_isolate(). These methods work for
both shared_isolate() and shared_space_isolate(). As soon as we remove
the shared isolate we can remove them again.

Bug: v8:13267
Change-Id: I68a3588aca2a12e204450c2b99635dd158d12111
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899316
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83260}
2022-09-16 11:47:04 +00:00
Dominik Inführ
cf60ee8efd Reland "[heap] Use std::unique_ptr for space_ array"
This is a reland of commit 6d342fa52c

Original change's description:
> [heap] Use std::unique_ptr for space_ array
>
> Document ownership with using std::unique_ptr<Space> for the space_
> array.
>
> Bug: v8:13267
> Change-Id: I12861d97cd52d2a8cf9ceb43a2f90008be87b2a3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3890913
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83187}

Bug: v8:13267
Change-Id: Idb25a656c4ba571d23132aa5e07cb13957c90f0b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899121
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83259}
2022-09-16 11:18:43 +00:00
Michael Achenbach
f321ada760 [test] Let numfuzz tests automatically use all available instances
All --stress-* flags are now automatically tested. This also removes
a superfluous option that was never changed. The default value is
now inlined.

No-Try: true
Bug: v8:13113
Change-Id: If7428b383ed01ff36a93f618badababfc448db26
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899259
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83258}
2022-09-16 10:52:10 +00:00
Clemens Backes
062f5ab0db [wasm][pgo] Refactor profile information generation
Before adding serialization of tiering information, refactor the
existing code to use a {ProfileGenerator} class. This makes it easier to
add new methods that can use all existing fields (instead of having new
functions that need a lot of parameters).

R=jkummerow@chromium.org

Bug: v8:13209
Change-Id: I0946cb1d507fde9e6d680ad588ba963c539d1d0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899301
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83257}
2022-09-16 10:44:53 +00:00
Dominik Inführ
79ac0de424 Fix some random presubmit failures
Change-Id: Ibd4c958875d777ba5241a6424ab23f8a2d0ac5ce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899263
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83256}
2022-09-16 10:41:24 +00:00
Omer Katz
a3230428be [heap] Fix bad cast in sweeper.cc
Bug: v8:12612, chromium:1364517
Change-Id: Id1e23d0ad0a786a01a432552937e1b6c6494bd9e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899120
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83255}
2022-09-16 10:37:53 +00:00
Clemens Backes
8b87039536 [API] Remove second OnCriticalMemoryPressure
Remove the deprecated OnCriticalMemoryPressure method with receives an
informative parameter.

R=mlippautz@chromium.org

Bug: chromium:634547
Change-Id: I932c3b5030291294dd340362f0b20d374e3067c0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3780533
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83254}
2022-09-16 10:34:13 +00:00
Clemens Backes
c582eb4ee2 [wasm] Use a single source of truth for feedback vector size
The number of feedback vector slots is currently stored in the
{WasmFunction}, returned in the {WasmCompilationResult}, and implicitly
stored as the size of the {call_targets} vector in
{FunctionTypeFeedback}.

This CL uses the latter as the source of truth, encapsulated in a new
{NumFeedbackSlots} function. This can be updated when adding new kinds
of feedback that need additional slots.
For now, the implementation of {NumFeedbackSlots} requires taking a
mutex, which we can hopefully avoid when productionizing speculative
inlining. We also take the mutex on every Liftoff compilation, which
adds synchronization between concurrent compilation which we previously
tried very hard to avoid (because it introduced significant overhead for
eager compilation).

As a nice side-effect, this CL reduces the per-function overhead by 8
bytes, independent of enabled features.

R=jkummerow@chromium.org

Bug: v8:13209
Change-Id: I2fe5f7fe73154328032a3f0961e88d068c5d07ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899299
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83253}
2022-09-16 10:26:34 +00:00
Dominik Inführ
353d100983 Reland "[heap] Add shared spaces for --shared-space"
This is a reland of commit 10756bea83

The reland is mostly unchanged except for changing the name for
the shared large object space. The name should use the same style
as other large object spaces.

The main reason for reverting was fixed in
https://crrev.com/c/3894303.

Original change's description:
> [heap] Add shared spaces for --shared-space
>
> This CL adds shared spaces for regular and large objects in the shared
> space isolate. Spaces aren't used for allocation yet.
>
> Bug: v8:13267
> Change-Id: If508144530f4c9a1b3c0567570165955b64cc200
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3876824
> Reviewed-by: Jakob Linke <jgruber@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83178}

Bug: v8:13267
Change-Id: I3de586c1e141fb5f7693e2d6972db251b4a4f434
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3892950
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83252}
2022-09-16 10:17:43 +00:00
Darius M
c0ba94db41 [compiler] fix bug with string concatenation folding
We can't freely concatenate strings in the background because they
could be mutated by the main thread (eg, flattened, internalized,
externalized...).

So, when there is a JSAdd between 2 constant strings, we first checked
if they are "safe" (= internalized, I think), and if so, we
concatenate them at compile time. If they are "unsafe", then we don't.

It turns out that this wasn't an issue with delayed constant strings,
since the content of the strings were never accessed: the actual
concatenations were done on the main thread, where it's safe to do.

This CL fixes that for most cases:

  - if the strings really cannot be read from the background, but the
    length of their concatenation is more than ConsString::kMinLength,
    then we create a ConsString.

  - I added a set to record which strings we created in the turbofan:
    those strings can safely be accessed from turbofan regardless of
    their type.

The only case where delayed constant strings could be a bit better is
when there is a concatenation of 2 small non-internalized string,
because right now, we wouldn't fold it. Still, it should happen very
rarely, if ever.


Bug: chromium:1359941
Change-Id: I651b834273de89f1e3c60654094a4606dd9c62f0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3891252
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83251}
2022-09-16 10:15:53 +00:00
Clemens Backes
f9e303e476 [wasm][pgo] Introduce a separate header and cc file
This moves the existing PGO code to a separate cc file with a separate
header. As the implementation will be further extended in follow-up CLs,
it's better to have it separated.

R=jkummerow@chromium.org

Bug: v8:13209
Change-Id: I7b7b5bf9c8d3d542dae734f3874499dccee152a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899321
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83250}
2022-09-16 10:06:53 +00:00
Leszek Swirski
8436c0059c [runtime] Clean up dead entries in the template cache
Resolve a TODO to remove cached template objects from the template cache
which have a cleared weak pointer to the template object. Requires a
little bit of awkward code to handle the "head is dead" case, but OTOH
the implementation cleans up the second Lookup of the head.

Bug: v8:13190
Change-Id: I31a8d8ab77e04c8496a2cacb6154f2ee84d6a795
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899257
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83249}
2022-09-16 09:20:03 +00:00
Leszek Swirski
e7b9604040 [runtime] Don't update template map for existing templates
The cached template object weakmap shouldn't be updated when we update
an existing cached template object, because this update can truncate the
linked list of cached template objects.

Bug: v8:13190
Change-Id: Icea61fcbd5c05d4293a884d1872523ddcdfc3323
Fixed: chromium:1364429, chromium:1364471
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899256
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83248}
2022-09-16 08:55:23 +00:00
Clemens Backes
00a341994f [cctest] Use v8_flags for accessing flag values
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=mliedtke@chromium.org

Bug: v8:12887
Change-Id: I417eee6311fadef9b60043cfc9a42926859c7ab9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899304
Reviewed-by: Matthias Liedtke <mliedtke@chromium.org>
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83247}
2022-09-16 08:22:03 +00:00
pthier
3cb7a8146f Reland "[strings] Fix raw hash lookup for forwarded strings"
This is a reland of commit 0a1f0e335e

Changes since revert:
- Deferred label for loading from forwarding table.
- Check if hash is computed instead of checking if it is a forwarding index.
- Retreive hash from forwarding table only if hash is assumed to be computed.

Original change's description:
> [strings] Fix raw hash lookup for forwarded strings
>
> Raw hashes may need to be looked up via the forwarding table when
> internalized strings are forwarded to external resources. Notably, the
> megamorphic ICs were not correctly fetching the raw hash.
>
> Bug: v8:12007
> Change-Id: Ibbc75de57e707788f544fbd1a0f8f0041350e29d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3885379
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Reviewed-by: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83115}

Bug: v8:12007
Change-Id: Ia88ed51a49c62170bc960b8f69673bb1e59a6009
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3888057
Commit-Queue: Patrick Thier <pthier@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83246}
2022-09-16 08:15:13 +00:00
Nico Hartmann
1d693043bd Revert "[turbofan] Rematerialize BigInt64 in deopt"
This reverts commit 80fb281561.

Reason for revert: https://bugs.chromium.org/p/chromium/issues/detail?id=1364400

Original change's description:
> [turbofan] Rematerialize BigInt64 in deopt
>
> This CL introduces two MachineTypes - SignedBigInt64 and UnsignedBigInt64, which are represented as Word64 but will be rematerialized to BigInt in deoptimization. This will avoid unnecessary conversions for BigInt64s when they are passed to StateValues.
>
> Bug: v8:9407
> Change-Id: I65fdee3e028ed8f9920b1c20ff78993c7784de48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3858238
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Commit-Queue: Qifan Pan <panq@google.com>
> Cr-Commit-Position: refs/heads/main@{#83230}

Bug: v8:9407
Change-Id: I77d278ce302621db03b787318641709780348cc8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3901814
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#83245}
2022-09-16 07:33:08 +00:00
Michael Achenbach
2cd354073e [test] Fix analysis-based numfuzz instances
A recent refactoring changed the behavior of dropping/keeping
results after test execution. The numfuzz loop has previously
treated all results as analysis results, as it expected that others
are dropped. After keeping all results, the second round invalidated
the analysis results and the test loop stopped early.

We now add an additional safeguard that ensures the received result
is indeed associated with an analysis run and do not depend anymore
on result presence/absence.

This also adds all analysis-based instances to the test cases.

No-Try: true
Bug: v8:13295
Change-Id: Ic1ede904d279a0c2b318ec997e7c77542dbc75bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3901812
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83244}
2022-09-16 07:24:59 +00:00
Michael Achenbach
a50854f219 [test] Add improved num-fuzzer test case
This improves the num-fuzzer system test. Previously, the test
didn't actually start up the main functionality of num-fuzz and
executed 0 tests. Now several of the production fuzzers are used to
run fake test cases. The overall timeout signal, used to
stop numfuzz, is mocked with a counter. The observer signals via the
event method that would have caused the hang fixed in:
https://crrev.com/c/3891373

No-Try: true
Bug: v8:13113
Change-Id: I47d17c1fa2099474079acaad5640228d8c454eb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3893807
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83243}
2022-09-16 07:22:19 +00:00
Marja Hölttä
ebc9556108 [rab/gsab] TypedArray.p.slice fix in Torque: Destination can be resizable
Bug: v8:11111,chromium:1362487
Change-Id: Ifc7649ec945a0cb13e02c52a47f8ab68fa8ab848
Fixed: chromium:1362487
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3890915
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83242}
2022-09-16 07:09:39 +00:00
Anton Bikineev
238278e4ef cppgc: young-gen: Gate cpp_heap->FinishSweeping behind runtime flag
Do it conditionally only when young-gen is enabled.

Change-Id: I1bd8ed49302b9e2aef0a60ed7831de9ec1cbe276
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899308
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83241}
2022-09-16 06:47:39 +00:00
Simon Zünd
1256fb0ab0 [liveedit] Remove dynamic programming diffing implementation
Myers algorithm for live edit diffing has been enabled since 10.6
without any reported problems, so we can safely remove the dynamic
programming approach with 10.8.

R=kimanh@chromium.org

Bug: chromium:1205288
Change-Id: I95c26c11e949b8c36a0b6abd54859b3936933e9d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3901811
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83240}
2022-09-16 06:15:50 +00:00
v8-ci-autoroll-builder
1344651e26 Update V8 DEPS (trusted)
Rolling v8/build: ccee528..b001130

Rolling v8/buildtools: 040e851..813d569

Rolling v8/buildtools/linux64: git_revision:fff29c1b3f9703ea449f720fe70fa73575ef24e5..git_revision:e70d8c3d5620bc0ddcbad23a36b1b26f815ca90a

Rolling v8/buildtools/third_party/libc++/trunk: c1e647c..e2f63a1

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/0d1854a..c067655

Rolling v8/third_party/depot_tools: 5e4d749..dca14bc

Rolling v8/third_party/fuchsia-sdk/sdk: version:9.20220914.1.1..version:9.20220915.2.1

Rolling v8/third_party/zlib: f48cb14..7d7ed92

Rolling v8/tools/clang: 12149f2..c3b78bc

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: Ie381cd91ebf11d348beed4fdcc099292aa7ef3b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3900398
Bot-Commit: 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/main@{#83239}
2022-09-16 03:52:39 +00:00
Anton Bikineev
6cbcf68db9 cppgc: Avoid IsMarking() calls in the write-barrier
Now that we have all useful flags on the API side, use to them.

Bug: chromium:1056170
Change-Id: Ia849b0925a2b2c10ace30b6c2b6871bd3572da31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899306
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83238}
2022-09-15 22:49:08 +00:00
Adam Klein
59c070a285 Revert "[v8] Use |AllocateAtLeast| for resizing v8 zones."
This reverts commit 4444874cdf.

Reason for revert: CHECK failure under UBSan
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan%20-%20builder/5103/overview

Original change's description:
> [v8] Use |AllocateAtLeast| for resizing v8 zones.
>
> This is part of an ongoing effort to reduce fragmentation in Chrome.  Partition alloc shows v8 zones are a large user of memory in Renderer processes, and that there is fragmentation from these allocations. This CL will reduce this fragmentation by allowing v8 to use all allocated memory for its zones.
>
> Bug: v8:13193, chromium:1238858
> Change-Id: Ibeac8bdba9d0e7ff66b14a3dde10e7c87d3cf953
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3889361
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Commit-Queue: Thiabaud Engelbrecht <thiabaud@google.com>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83235}

Bug: v8:13193, chromium:1238858
Change-Id: I03c8c1ad7bb1cd20770323bffe1c42a4be47c454
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3900814
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83237}
2022-09-15 20:18:17 +00:00
Frank Tang
adc30b07c0 [Temporal] Fix timezone and calendar parsing issue
Need to reset tzi_xxx and calendar_xxx in parser state if the
post-condition of CalendarName and TimeZoneIdentifier is not met.

Bug: v8:11544
Change-Id: If2df6c8fc8cf2418ddd5443abab02066d423a0c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3893554
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83236}
2022-09-15 20:01:58 +00:00