Commit Graph

64971 Commits

Author SHA1 Message Date
Maya Lekova
cf84dd04a3 [turbofan] Add docs and tests for fast calls with fallback
Bug: chromium:1052746
Change-Id: I6c1f888ed9a7f27d43872e24f8d8cf353a103f1a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461740
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70479}
2020-10-13 12:21:09 +00:00
Thibaud Michaud
a0f4b396af [wasm] Fix Liftoff stack check inspection
The call to "GetSpilledRegistersForInspection" was invalidated by the
call to "GetUnusedRegister" a few lines below.

R=clemensb@chromium.org

Bug: v8:10957
Change-Id: I1e0110d9b28ca23a2a8b9ff4b4c39143bfbe5510
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2466118
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70478}
2020-10-13 12:20:04 +00:00
Clemens Backes
97e72bbfcb [wasm][memory64] Prepare memory tracing for i64 addresses
The index to be traced can be a full (platform-dependent) pointer sized
integer now. This CL prepares memory tracing for that.
As a drive-by, the "address" field is renamed to "offset", or
"effective_offset", depending on the situation.

R=manoskouk@chromium.org

Bug: v8:10949
Change-Id: I1fabfdb57835f041e1310a4eb4024d6254c08752
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465825
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70477}
2020-10-13 11:41:54 +00:00
Andreas Haas
bc4a94d308 [wasm] Rename flag to --experimental-liftoff-extern-ref
Rename the flag --liftoff-extern-ref to
--experimental-liftoff-extern-ref to keep the fuzzer from using it.
The implementation is not complete yet, and the next steps may take a
bit.

R=clemensb@chromium.org

Bug: chromium:1137601
Change-Id: I74f1ed8faba44e42f63790d87f4a538dd59ac852
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465838
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70476}
2020-10-13 11:17:24 +00:00
Georg Neis
9ae3dd86aa Make printing of a JSObject's properties less confusing
A JSObject's own properties were always printed as if all were stored
in the 'properties' backing store, even if some of them were stored in
the descriptor array and/or in-object. This CL tries to make the output
a bit clearer.

Change-Id: I03d05bdd530cc4c534c945aa08bad20edc3bbcd7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2466119
Auto-Submit: Georg Neis <neis@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70475}
2020-10-13 10:15:54 +00:00
Camillo Bruni
509802fd08 [log] Add predictable logging
Use monotonic times for logging with --predictable.

Bug: v8:10937, v8:10966, v8:10668
Change-Id: I3d4f0d48375f6f5d9fa375cf5393ff3afee7c0b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465829
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70474}
2020-10-13 10:13:54 +00:00
Clemens Backes
f1ffb4df53 [wasm][memory64] Enforce i64 index on i64 memory
We now remember whether the memory was 64 bit, in in this case force the
index value to be an i64 instead of an i32.

This is only the decoding part of this change. TurboFan and Liftoff will
have to be fixed separately to handle the i64 values correctly.

R=manoskouk@chromium.org

Bug: v8:10949
Change-Id: Ia504e7eb5a2a55caf8dfdbd0833481ef590c55bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461239
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70473}
2020-10-13 10:02:24 +00:00
Andreas Haas
b206bdd0e0 [testrunner] enable --wasm-generic-wrapper for nooptimization variant
The generic wrapper will be the baseline variant of the JavaScript-to-
WebAssembly wrapper. Enabling it in the nooptimization variant gives it
test coverage.

R=clemensb@chromium.org

Bug: v8:10701
Change-Id: I37d1f767c61ff70e103d1742ef84f874c3804d7d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461240
Auto-Submit: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70472}
2020-10-13 09:27:45 +00:00
Dominik Inführ
5168a84733 [handles] Always allow dereference of builtin handles
Code objects for builtins are immortal and immovable and can thus be
dereferenced like read-only-objects.

Bug: v8:10315
Change-Id: I60d961fee71056160ad2913bffe3ca50280cb9d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465835
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70471}
2020-10-13 09:12:54 +00:00
Jakob Gruber
c6368d294a [api] Add Isolate::GetEmbeddedCodeRange
... to expose the memory region containing embedded builtins. Similar
to `GetCodeRange`, which does the same for on-heap V8 Code objects.

Bug: v8:11001
Change-Id: I1aa3ae650f161cabb410c61dbb6d364908370f8f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465461
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70470}
2020-10-13 08:55:54 +00:00
Zhao Jiazhong
82a8bfdfb5 [mips] Fix DropAndRet with a frame that larger than int16_max
Change-Id: I3f5dbb0fbae3862a6da4146b83e49986c8be3bdc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2467015
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#70469}
2020-10-13 08:32:14 +00:00
Javad Amiri
7015a0d17d [heap] Add TPH-related flag-implication rules
This disables the following features for --enable-third-party-heap:
- inline allocation: all allocation are directed to runtime for now
  until we have support for TPH inline allocation.
- allocation site pretenuring: this feature relies on ephemeral
  memento objects placed after ordinary objects and is tightly coupled
  with V8's GC.
- allocation folding in TurboFan: this feature assumes that objects
  of different size and type can be allocated on the same page using
  bump-pointer allocation.

Bug: v8:9533
Change-Id: Idbdf1dac566f37db379e5d4b43e0741886f4e69b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463004
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70468}
2020-10-13 08:15:54 +00:00
Michael Achenbach
0040d5cdf1 Whitespace change after clusterfuzz archive loss
Bug: chromium:1137528
Change-Id: I1f00cdbe7af97e56f234cc140dc0039be346690a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465836
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70467}
2020-10-13 07:46:51 +00:00
Peter Marshall
bf0990e5c5 [cpu-profiler] Make StartProfilingAfterOsr more predictable
Always spend 1ms per iteration.

Previously if the profilerthread took a long time to start up then we
would skip through iterations and potentially not gather enough samples.

This forces each iteration to take 1ms.

Bug: v8:10996
Change-Id: I0dd7bb7e31636c9ebf5dd99110c8a976cbc8f045
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461727
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70466}
2020-10-13 07:43:14 +00:00
mathetake
8deb0fd3ed wasm/c-api: fix the index of StackTraceFrame
CreateFrameFromInternal always creates StackFrame from the frame at the index zero,
which is fine for the usage in Trap::origin, but is a bug for Trap::trace

Change-Id: Ia9471f600c5165ffc1c165b2f114b40acbe5b1e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465353
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70465}
2020-10-13 07:34:26 +00:00
v8-ci-autoroll-builder
0dc21d81d0 Update V8 DEPS.
Rolling v8/build: 3110f72..18a5f87

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

Change-Id: I0d602535bf0e696d5a96bacdf2a8a74774a7a0ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2467117
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@{#70464}
2020-10-13 03:47:34 +00:00
Ng Zhi An
62a16f146e [wasm-simd] Guard i64x2 widen i32x4 behind post-mvp flag
These are still not in proposal, so they should be behind the post-mvp
flag.

Bug: v8:10972
Change-Id: I1b53307f334ddd8e21a095c13d7f7abb8ce05203
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465654
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70463}
2020-10-12 23:26:23 +00:00
Ng Zhi An
813ae01332 [wasm-simd][x64] Don't force dst to be same as src on AVX
On AVX, many instructions can have 3 operands, unlike SSE which only has
2. So on SSE we use DefineSameAsFirst on the dst. But on AVX, using that
will cause some unnecessary moves.

This patch changes a couple of F32x4 and S128 instructions to remove
this restriction when AVX is supported.

We can't use AvxHelper since it duplicates the dst for the call to the
AVX instruction, which isn't what we want. The alternative is to
redefine Mulps and other functions here, but there are other callsites
that depend on this duplicated-dst behavior, so it's harder to change.
We can migrate this as we move more logic over to non-DefineSameAsFirst
for AVX.

With the meshopt_decoder.js in the linked bug, it removes 8 SIMD movs
(from a function that has 300+ lines of assembly.)

Note that from agner's microarchitecture.pdf, page 127, "Elimination of
move instructions", many times such moves can be eliminated by the
processor. So this change won't speed up perf, but it helps a bit with
binary size, and decoder pressure.

Bug: v8:10116,v8:9561
Change-Id: I125bfd44e728ef08312620bc00f6433f376e69e3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465653
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70462}
2020-10-12 22:50:53 +00:00
Ng Zhi An
102b4b3c1a [wasm-simd][arm64] Prototype i8x16.popcnt
This implements i8x16.popcnt on arm64 and interpreter.

Bug: v8:11002
Change-Id: Ia94a053d7e0a0c800057ac80865ba6f86ac7caf8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461058
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70461}
2020-10-12 22:19:23 +00:00
v8-ci-autoroll-builder
1c6cd2ac0e Update V8 DEPS.
Rolling v8/build: 7e6351e..3110f72

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

Change-Id: Iee2196a82440a19603db77170b8f224753ab5479
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2466562
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@{#70460}
2020-10-12 21:50:23 +00:00
Ng Zhi An
ceee7cfe72 [wasm-simd][x64] Prototype i64x2.bitmask
Implement on interpreter and x64.

Bug: v8:10997
Change-Id: I3537ce54e1b56cc3b04d91cb07c430c35b88c3aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2459109
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70459}
2020-10-12 21:13:53 +00:00
Zhi An Ng
d813f56c4b Revert "[csa] Fix semantics of PopAndReturn"
This reverts commit 5e5eaf7954.

Reason for revert: Failure on V8 Linux gcc https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20gcc/8929?

Original change's description:
> [csa] Fix semantics of PopAndReturn
>
> This CL prohibits using PopAndReturn from the builtins that
> have calling convention with arguments on the stack.
>
> This CL also updates the PopAndReturn tests so that even off-by-one
> errors in the number of poped arguments are caught which was not the
> case before.
>
> Motivation:
>
> PopAndReturn is supposed to be using ONLY in CSA/Torque builtins for
> dropping ALL JS arguments that are currently located on the stack.
> Disallowing PopAndReturn in builtins with stack arguments simplifies
> semantics of this instruction because in case of presence of declared
> stack parameters it's impossible to distinguish the following cases:
> 1) stack parameter is included in JS arguments (and therefore it will
>    be dropped as a part of 'pop' number of arguments),
> 2) stack parameter is NOT included in JS arguments (and therefore it
>    should be dropped in ADDITION to the 'pop' number of arguments).
>
> This issue wasn't noticed before because builtins with stack parameters
> relied on adapter frames machinery to ensure that the expected
> parameters are present on the stack, but on the same time the adapter
> frame tearing down code was effectively recovering the stack pointer
> potentially broken by the CSA builtin.
>
> Once we get rid of the arguments adapter frames keeping stack pointer
> in a valid state becomes crucial.
>
> Bug: v8:5269, v8:10201
> Change-Id: Id3ea9730bb0d41d17999c73136c4dfada374a822
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460819
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70454}

TBR=tebbi@chromium.org,ishell@chromium.org

Change-Id: I2673982a8f51cbecf421af11b0ce5ad5031fb406
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:5269
Bug: v8:10201
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465656
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70458}
2020-10-12 20:25:46 +00:00
Ng Zhi An
3d48ae2dcc Add --print-wasm-code-function-index
This flag allows you to filter printing Wasm code to one particular
function index.

Bug: v8:10791
Change-Id: I400ccaadb8330e5e31e2faefdeddb169cdc85f71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2459259
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70457}
2020-10-12 17:56:25 +00:00
Ng Zhi An
673be63e2b [wasm-simd][x64] Prototype load lane
Load lane loads a value from memory and replaces a single lane of a
simd value.

This implements the load (no stores yet) for x64 and interpreter.

Bug: v8:10975
Change-Id: I95d1b5e781ee9adaec23dda749e514f2485eda10
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2444578
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70456}
2020-10-12 17:54:30 +00:00
Ng Zhi An
2c38a47752 [wasm-simd] Remove some I64x2 instructions not in proposal
These instructions are not in the proposal, and will be unlikely to be
requested (poor performance, insufficient use cases). As we get more
instruction suggestions, these are sitting around on useful opcodes and
we have to play musical chairs every time we prototype a new
instruction.

Bug: v8:10933
Change-Id: Ic7ce4e514c343d821f76b8c071e41f9bddfbd1ce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2457669
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70455}
2020-10-12 17:53:25 +00:00
Igor Sheludko
5e5eaf7954 [csa] Fix semantics of PopAndReturn
This CL prohibits using PopAndReturn from the builtins that
have calling convention with arguments on the stack.

This CL also updates the PopAndReturn tests so that even off-by-one
errors in the number of poped arguments are caught which was not the
case before.

Motivation:

PopAndReturn is supposed to be using ONLY in CSA/Torque builtins for
dropping ALL JS arguments that are currently located on the stack.
Disallowing PopAndReturn in builtins with stack arguments simplifies
semantics of this instruction because in case of presence of declared
stack parameters it's impossible to distinguish the following cases:
1) stack parameter is included in JS arguments (and therefore it will
   be dropped as a part of 'pop' number of arguments),
2) stack parameter is NOT included in JS arguments (and therefore it
   should be dropped in ADDITION to the 'pop' number of arguments).

This issue wasn't noticed before because builtins with stack parameters
relied on adapter frames machinery to ensure that the expected
parameters are present on the stack, but on the same time the adapter
frame tearing down code was effectively recovering the stack pointer
potentially broken by the CSA builtin.

Once we get rid of the arguments adapter frames keeping stack pointer
in a valid state becomes crucial.

Bug: v8:5269, v8:10201
Change-Id: Id3ea9730bb0d41d17999c73136c4dfada374a822
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460819
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70454}
2020-10-12 17:36:05 +00:00
Ng Zhi An
19031fa5a4 [wasm-simd][scalar-lowering] Use switch for SimdType conversions
Use a doubly-nested switch on SimdType for conversions, this ensures
that we handle all possible cases (and we actually missed one,
converting i64x2 -> f32x4, which is added in this patch.)

Bug: v8:10507
Change-Id: I493becb2616c51d02d5868f235653baba5a0b4af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464144
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70453}
2020-10-12 17:27:35 +00:00
Ng Zhi An
c10c83c31b Pull safe_conversions from chromium
Manual copy and paste of all code found in the namespace base. I didn't
change any of the implementation code. Pull in a new file for optimized
ARM implementation.

Added a list of adaptions made to document what is different from
chromium.

Change-Id: I88b4af45437506cf57755e48fdfc88027a5aed33
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2436610
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70452}
2020-10-12 16:59:55 +00:00
Mythri A
1dac9f3b10 [turboprop] Don't use function context specialization with Turboprop
For turboprop, it's a better tradeoff to reuse the code than
specialising the code for a particular closure especially given we
optimize quite early when compared to Turbofan.

Bug: v8:9684
Change-Id: Icf5d8548bbdcac9e202dcf44c68e06cc4c732ba7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461242
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70451}
2020-10-12 16:30:45 +00:00
v8-ci-autoroll-builder
682afec85b Update V8 DEPS.
Rolling v8/base/trace_event/common: 23ef533..e0f2b84

Rolling v8/build: 1cb6993..7e6351e

Rolling v8/third_party/aemu-linux-x64: FgthknmEoQugl3GqOyqz_RsAjIMmeLsa960mZcmhE9UC..PL87Lj_q7GOEzYJ2eJIJAzMtQbuLWVnmjDQPqfu2O64C

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/d82d30d..cd2eebd

Rolling v8/third_party/depot_tools: 1407cfd..b073999

Rolling v8/tools/clang: f513a0b..7e5979b

Rolling v8/tools/luci-go: git_revision:83c3df996b224edf5061840744395707a0e513e7..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:83c3df996b224edf5061840744395707a0e513e7..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:83c3df996b224edf5061840744395707a0e513e7..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/swarming_client: 44c13d7..d46ea76

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

Change-Id: I5a5acd9aa6eeab96a1999d55654349cdfb664275
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465037
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@{#70450}
2020-10-12 15:44:20 +00:00
Pierre Langlois
a5cbde0330 [cctest][wasm] Fix JumpTablePatchingStress on systems with 64k pages
This test allocates a large mapping and splits into kThunkBufferSize
areas that it needs to be able to change permissions on. So
kThunkBufferSize needs to be set to the largest page size possible,
which is 64k at the moment.

It doesn't matter if kThunkBufferSize is larger than the actual page
size.

Bug: v8:10808
Change-Id: I3a8947f04a7ec25be49a54015cd128e901065ea6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463404
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#70449}
2020-10-12 15:43:15 +00:00
Nico Hartmann
8d6f8abec3 Add fuchsia/update_images.py to v8/DEPS
According to this change in chromium's DEPS
https://chromium-review.googlesource.com/c/chromium/src/+/2446832

Bug: chromium:1137317
No-Try: true
No-Presubmit: true
Change-Id: I2b9e804f151834b58b77db1aca591e2eade91243
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465826
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70448}
2020-10-12 14:56:43 +00:00
Zhao Jiazhong
9495326663 [mips32] Implement V8_REVERSE_JSARGS
Bug: v8:10201
Change-Id: I86cd6b73787cea307013dd311d048b20459ad573
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465052
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70447}
2020-10-12 12:55:18 +00:00
Ross McIlroy
5b46420d15 [TurboProp] Factor register checks into RegisterBitVector.
Cleanup code to factor out bit-checks on register allocations to a
seperate RegisterBitVector class.

BUG=v8:9684

Change-Id: I33306a858da252d0be76eecaa9ea47b9b53f088b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464936
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70446}
2020-10-12 12:34:08 +00:00
Anna Henningsen
3176bfd447 [heap-profiler] Fix crash when a snapshot deleted while taking one
Fix a crash/hang that occurred when deleting a snapshot during the
GC that is part of taking another one.

Specifically, when deleting the only other snapshot in such
a situation, the `v8::HeapSnapshot::Delete()` method sees that there
is only one (complete) snapshot at that point, and decides that it is
okay to perform “delete all snapshots” instead of just deleting
the requested one. That resets the internal string lookup table
of the heap profiler, but the new snapshot that is currently in
progress still holds references to the old string lookup table,
leading to a use-after-free segfault or infinite loop.

Fix this by guarding against resetting the string table while
another heap snapshot is being taken, and add a test that would
crash before this fix.

This can be triggered in Node.js by repeatedly calling
`v8.getHeapSnapshot()`, which provides heap snapshots as weakly
held host objects.

Change-Id: If9ac3728bf79114000982f1e7bb05e8034299e3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464823
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70445}
2020-10-12 12:21:18 +00:00
gengjiawen
d76abfed35 [wasm-simd][arm64] fix cross compile arm64 on windows
See: https://github.com/nodejs/node/pull/35415
Change-Id: I5d77ae202d4bbfb0971246fe5de9c0ad17c485ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2459491
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Jiawen Geng <technicalcute@gmail.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70444}
2020-10-12 10:58:18 +00:00
Camillo Bruni
2061656704 [tools] System-Analyzer: Remove timeline overview
This has been broken ever since we added multiple timeline-tracks.

Drive-by-fix: Rename selectionMouseMove to selectTimeRange.

Bug: v8:10644
Change-Id: Icff06a2d636a4a7302ac406f99e1012be4c7f25f
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463240
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70443}
2020-10-12 10:43:08 +00:00
Santiago Aboy Solanes
58d56eb792 [cleanup] Several small clean-ups in our concurrent tests
Clean-ups:
 * Remove the detaching of persistent handles from the LocalHeap if the
main thread will not get the handles from the background thread.
 * Remove unused isolate member.
 * Make members private/protected as needed.

Bug: v8:7790
Change-Id: I23bf4a41124bd04d4a848edfa1ef8f9e8e77182c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463234
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70442}
2020-10-12 10:42:04 +00:00
Jakob Gruber
f91acaa165 Reland "[regexp] Protect against reentrant RegExpStack use"
This is a reland of e2408c2521

Changes since last time: also accept CRASH test results. For some
reason, the CHECK failure is detected as a CRASH on mac bots.

Original change's description:
> [regexp] Protect against reentrant RegExpStack use
>
> Irregexp, and in particular the RegExpStack, are not reentrant.
> Explicitly guard against reentrancy.
>
> Bug: chromium:1125934
> Change-Id: I0fc295f6986a89221982e6a2ccefed46193974f6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460820
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Auto-Submit: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70436}

Tbr: yangguo@chromium.org
Bug: chromium:1125934
Change-Id: I2116ca5944c49f6114228d4402847bdd426bdd7f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465823
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70441}
2020-10-12 10:40:58 +00:00
Santiago Aboy Solanes
242a498382 [cleanup] Remove extra AcquireLoads in methods
A handful of methods were loading the same member twice in the same
method.

Bug: v8:7790
Change-Id: I20a1a95ed9dae2ff75bfdbf4c571d26ad02b1f94
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2454717
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70440}
2020-10-12 10:39:53 +00:00
Ulan Degenbaev
e09beb98a4 [heap] Fix ProcessEphemeronsUntilFixpoint
This removes redundant worklist draining in the fix-point iteration. It
may discover more ephemerons and break the assertion.

The draining is not needed because FinishConcurrentMarking ensures
that all background threads drain their worklists.

Bug: chromium:1136405
Tbr: etiennep@chromium.org
Change-Id: I3a311dca36dd2f88ab5006f995be235c74c1a0f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464933
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70439}
2020-10-12 10:38:49 +00:00
Camillo Bruni
4d47881b06 [tools] Fix system-analyzer CSS
- simplify CSS in index.css
- fix start-page layout
- reduce timeline-track height
- fix timeline-track legend layout
- fix scrollbar colors in dark theme

Bug: v8:10644
Change-Id: If3bb7422e6866bac766e7851f489a42ecbcf1d78
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463239
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70438}
2020-10-12 09:14:47 +00:00
Nico Hartmann
f9a31e424c Revert "[regexp] Protect against reentrant RegExpStack use"
This reverts commit e2408c2521.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64/36733?1

Original change's description:
> [regexp] Protect against reentrant RegExpStack use
>
> Irregexp, and in particular the RegExpStack, are not reentrant.
> Explicitly guard against reentrancy.
>
> Bug: chromium:1125934
> Change-Id: I0fc295f6986a89221982e6a2ccefed46193974f6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460820
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Auto-Submit: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70436}

TBR=yangguo@chromium.org,jgruber@chromium.org

Change-Id: I7b51659d21fe2d49ff343f4de0f6bb9720281b86
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1125934
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465822
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70437}
2020-10-12 08:55:49 +00:00
Jakob Gruber
e2408c2521 [regexp] Protect against reentrant RegExpStack use
Irregexp, and in particular the RegExpStack, are not reentrant.
Explicitly guard against reentrancy.

Bug: chromium:1125934
Change-Id: I0fc295f6986a89221982e6a2ccefed46193974f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460820
Commit-Queue: Yang Guo <yangguo@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70436}
2020-10-12 08:32:38 +00:00
Ng Zhi An
0fc5906fb1 [wasm-simd][scalar-lowering] Enable more lowering tests
These tests were disabled because scalar lowering wasn't fully
implemented yet. Now we are at a stage when we can enable them.

The only remaining tests with lowering test disabled are prototype
instructions, once they are merged into the proposal proper, scalar
lowering should be implemented for them, and relevant tests enabled.

Bug: v8:10507
Change-Id: I4b7c8778f70e226ebda3bf5a2a7dd5efa343bc0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2460841
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70435}
2020-10-09 22:00:55 +00:00
Ng Zhi An
a28144e5a3 [wasm-simd][scalar-lowering] Lower float pmin/pmax
Lowering for f32x4 and f64x2 pmin and pmax.

Bug: v8:10501,v8:10507
Change-Id: I2d92d337835a62e6adb979ed573b616cc2b86c25
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461453
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70434}
2020-10-09 18:12:34 +00:00
Ng Zhi An
fbab1b5419 [wasm-simd] Remove some duplicated helper functions in tests
Some of these functions don't need to be defined, we can directly call
the same helpers defined elsewhere.

Bug: v8:10933
Change-Id: I31464195b11ed14f0725d9ed9711fa72ddbb4e92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461478
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70433}
2020-10-09 18:05:34 +00:00
Andreas Haas
58547c2a45 [wasm] Update spec tests
A previous update got reverted due to a SIMD test,see
https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8867662180901819968/+/steps/Check_-_ODROID/0/logs/simd_f32x4_pmin_pmax/0.

R=zhin@chromium.org

Bug: v8:10938
Change-Id: Id1e7e35112f127ccd8d5420b96f247d4fa2b52fb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2454711
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70432}
2020-10-09 17:51:14 +00:00
Milad Fa
e4878aab8d AIX: Skip all the ceilf and truncf tests
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: I2e3e4fc8822be9da0a16d99b4173641a91fa5957
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463505
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#70431}
2020-10-09 16:08:06 +00:00
Samuel Groß
977b77a332 [sandbox][x64] Add a type tag to external pointers
This change tags pointers in the external pointer table with a type
dependent value in order to prevent type confusions between different
external pointers.

Bug: v8:10391
Change-Id: I5a83178e5ac46d49a99c91047816926120d801d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2443133
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Samuel Groß <saelo@google.com>
Cr-Commit-Position: refs/heads/master@{#70430}
2020-10-09 15:39:44 +00:00