Commit Graph

5462 Commits

Author SHA1 Message Date
Daniel Dromboski
8807f0ad48 [tools] More Python 3 compatibility fixes
These should all be forward/backward compatible with Python 2/Python 3.

[tools] Tweak statusfile.py for Python 3

.iteritems() does not exist in Python 3, only .items().

(While .iteritems() was meant to be an optimization over .items()
in Python 2, .items() should work fine, and it is forward/backward
compatible.)


[tools] Fix another Python 3 issue in mb.py

sys.platform used to return e.g. 'linux2', which is 'linux' plus
whatever the first digit of `uname -r` was when Python was built.
As of Python 3.3, it always returns just 'linux' for Linux OSes.
Use `sys.platform.startswith('linux')` for forward/backward
compatibility.


[tools] Make base_runner.py Python 3 compatible

dict.keys() returns a dict_keys in Python 3, whereas it
used to return a simple array. list() is forward/backward
compatible with identical results on Python 2/3 (returns array).

(Tested on Linux x64, trying to recreate NodeJS's CI workflow.)


[tools] Make tools/dev/v8gen.py work with Python 3

dict.keys() returns a dict_keys in Python 3, whereas it
used to return a simple array. list() is forward/backward
compatible with identical results on Python 2/3 (returns array).

Comparing a None-type value numerically used to result in the
None-type value always being considered "less than" the thing
it is compared to. As of Python 3, numerically comparing against
None or None-typed values results in an error. Check if a value
is truthy before numerically comparing it, for forward/backward
compatibility.

print() used to transparently decode byte strings in Python 2.
In Python 3, they must be explicitly decoded first.

(Tested on Linux 64-bit, trying to recreate NodeJS's CI workflow.)

Bug: v8:9871
Change-Id: I059bf98577a67649bbe7ec49848989d468da96b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2867270
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74369}
2021-05-05 08:24:36 +00:00
Camillo Bruni
e75736aed4 [tools][system-analyzer] Allow hiding tooltips when clicking elsewhere
Drive-by-fix:
- Show tooltips in list-panel entries
- Use fixed kChunkWidth in timeline-track

Bug: v8:10644
Change-Id: I738f613c9a35726b9ab4a6c51f784638eade9335
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2867467
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74356}
2021-05-04 13:45:45 +00:00
Camillo Bruni
5e29241db8 [tools][system-analyzer] Postpone updating collapsed panels
- Add CollapsableElement helper
- Collapse all panels by default
- Only update panels if they are opened
- Only update CodePanel Select element if the data has changed
- Fix focusing SourcePosition selection

Bug: v8:10644
Change-Id: Id9b5159e86623c7ca0f437dd9db6b0faff3ec573
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2859952
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74329}
2021-05-03 14:14:46 +00:00
Leszek Swirski
15803e5fa9 [test] Replace turboprop_as_toptier with always_sparkplug
In the 'extra' variant, replace turboprop_as_toptier (which is mostly
covered by turboprop) with always_sparkplug, to increase Sparkplug's
coverage on tests.

Bug: v8:11420
Change-Id: I43b7009d184a03cb163d78f1f8bd05233ef7c34e
Fixed: v8:11686
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2862769
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74324}
2021-05-03 12:33:38 +00:00
Michael Achenbach
1a9c9f0fc0 [test] Stress concurrent inlining on numfuzz
This will give extra coverage of the mode on the numfuzz tsan bot.

No-Try: true
Bug: chromium:11655
Change-Id: Ifcc4ad304116fa1b0331cc48e41c07405193d514
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2862809
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74316}
2021-05-03 06:45:13 +00:00
Jakob Kummerow
e0b941688e [wasm-gc] Optimize performance of call_ref
By (mostly) unifying the different kinds of WasmFunctionData, and
precomputing and caching what we can, we can reduce the amount of
work that has to be done for each call.
We still have to store the current instance for JS function calls;
that may be eliminatable in the future.
WasmCapiFunctions are not included in the refactoring yet.

Bug: v8:7748,v8:9495
Change-Id: Ie6839153153d5854670cd01bc77a86111c1f68d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2856543
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74287}
2021-04-29 18:42:45 +00:00
Vasili Skurydzin
ad5f34a1d8 [ppc64] Skip simd tests if power processor version is earlier than 9
Change-Id: Idabbd2b1326fcca04cd937a730c5418f9c9cf8af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2855075
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Vasili Skurydzin <vasili.skurydzin@ibm.com>
Cr-Commit-Position: refs/heads/master@{#74284}
2021-04-29 15:36:04 +00:00
Camillo Bruni
19b705682c [tools] Fix system-analyzer Script selection
Selecting a single script from related events was not implemented.

Change-Id: Id6dbe7f8eb235c5917e48a9ade7347404c114618
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2859943
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74281}
2021-04-29 14:45:24 +00:00
Camillo Bruni
9a068b9f09 [tools] System analyzer: fix parsing linlined deopt location
Change-Id: I424e4de75cfd628d034033c99ce2a6e7b88c6a52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857958
Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74269}
2021-04-29 09:33:03 +00:00
Dan Elphick
5d2ec36dd2 [build] Fix build failures in Chrome
Use relative paths to access v8 root build rules since // means
something different in a chrome build.

Bug: v8:7330
Change-Id: I4eac73b394daaf0250b0fa2ad415af560b03c114
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2856840
Commit-Queue: Dan Elphick <delphick@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74258}
2021-04-28 17:44:20 +00:00
Dan Elphick
fee82d7fee [build] Fix gn check errors for v8windbg
Bug: v8:7330
Change-Id: I4bb602a41f127d4e3201defa3176f7e99e6d3753
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2851894
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#74254}
2021-04-28 15:40:20 +00:00
Maya Lekova
ec36abead2 [respect] Rename UBSAN's blacklists to ignorelists
This renames UBSAN's lists to match the names expected by the sanitizer
config as specified in
1343ce81aa

Bug: v8:10619
Change-Id: I83f671cb68e4541735acb8d86d267f6a1a49b0a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2854744
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74242}
2021-04-28 07:55:39 +00:00
Nico Weber
87043bbb96 [diagnostics] Don't build system trace code on non-win non-mac
Bug: v8:11699
Change-Id: I286ea7d3a6455528c66eee3f479455bfc49f190c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2852039
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74232}
2021-04-27 16:08:49 +00:00
Daniel Dromboski
98e8ec5fe6 [tools] Make tools/mb/mb.py work with Python 3
Update the way urllib is imported. As of Python 3, the old `urllib2`
was split into several smaller modules under `urllib`.

This commit unifies the resulting imported names across Python 2 and
Python 3, for forward/backward compatibility.

Bug: v8:9871
Change-Id: I81310ea83536269ae0cdf1406fd69285928c9357
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2848488
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74209}
2021-04-27 09:08:43 +00:00
Clemens Backes
baa2840f9e [wasm] Add variant for --wasm-write-protect-code-memory
This adds a test variant enabling --wasm-write-protect-code-memory, and
enables it on linux64 debug and release bots.

R=machenbach@chromium.org, jkummerow@chromium.org
CC=​dlehmann@google.com

Bug: v8:11667, v8:11663
Change-Id: I04f47d06d9720f7bc9e122d17b253646f2c203b1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2839562
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74179}
2021-04-26 10:25:50 +00:00
Jakob Gruber
4f2f14f8cd [compiler] Remove --turbo-direct-heap-access
On a per-job basis, --turbo-direct-heap-access should be equal to
whether concurrent inlining is enabled. We simplify involved logic by
removing the flag, and replacing all access to

- FLAG_turbo_direct_heap_access, and
- FLAG_concurrent_inlining

inside compiler/ with
OptimizedCompilationInfo::is_concurrent_inlining() (or derived values).

Bug: v8:7790
Change-Id: I64818e0e1004dded08c784ef1c4bdfd2af990a59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2843345
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74166}
2021-04-26 06:59:16 +00:00
Michael Achenbach
e9c6e931c9 Whitespace change to trigger bots
Change-Id: I2618874ebf8f963f669901e55ea772413160b304
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2848475
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74161}
2021-04-23 21:00:41 +00:00
Michael Achenbach
2fa284628b Whitespace change to trigger builders
Bug: chromium:1154223
Change-Id: I022818764091bbc0d3b03cfd11b58f40fe8091ec
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2846889
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74136}
2021-04-23 08:49:46 +00:00
Deepti Gandluri
89af05e756 [wasm-simd] Rename no_simd_sse to no_simd_hardware to be generic
Change-Id: Id1581981ac54c74216e5a7887b7972254237f319
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2847581
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74133}
2021-04-23 00:25:29 +00:00
Ng Zhi An
01c670e416 [message] Have message testcfg extend ExpectedOutProc
This will make --regenerate_expected_files flag work for message tests.

Bug: v8:10773
Change-Id: Ica87bd69bd0a41e2a3c168d2200d0cd0c7f094da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2842387
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74127}
2021-04-22 18:43:28 +00:00
Camillo Bruni
615255dd4e [tools] Profiler builtins and sparkplug fixes
- Add filter to skip baseline handlers
- Make profiler types more readable
- Refactor tickprocessor test to use serialized symbols
- Add large tickprocessor stress test with a complete V8 log

Change-Id: Icc09c2eb8ea63c1805d793d2d47f79b0d5080b5b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784686
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74094}
2021-04-21 11:44:31 +00:00
Wenyu Zhao
2cd77745d9 [heap] Fix failed tests when enabling single generation
* Filtered some tests that rely on incremental_marking and shape tracking

Bug: v8:11644
Change-Id: Ic9833bf1e49e6413422484858cd1054dd2500092
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2822284
Commit-Queue: Wenyu Zhao <wenyu.zhao@anu.edu.au>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74078}
2021-04-21 07:33:51 +00:00
Sathya Gunasekaran
fbd114bd27 Reland "[ic] Add a new MegaDOM IC"
This is a reland of c83c9590ba

Changes since revert: nothing, issue was crbug.com/v8/11666

Original change's description:
> [ic] Add a new MegaDOM IC
>
> This patch implements the MegaDOM IC setup and access. A new MegaDOM
> IC state indicates that we've seen only DOM accessors at this access
> site.
>
> This CL only adds support for DOM getters in LoadIC, other kinds of
> access will be added in follow on CLs.
>
> Still remaining TODO before shipping:
> 1. Have a mechanism to invalidate the protector
> 2. Have a mechanism to find the accessors that aren't overloaded
> 3. Use a new builtin to miss to runtime on access check failure
>
> Change-Id: Ie12efe5e9fa284f023043b996d61e7d74e710ee2
> Bug: v8:11321
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2618239
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73733}

Bug: v8:11321
Change-Id: I2bec54465542b5b40c42adb6eb12b6ce72cce5bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2794439
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74056}
2021-04-20 07:36:26 +00:00
Jakob Kummerow
bf74af74da [bigint] Move multiplication to src/bigint/
Also replace the schoolbook algorithm with an optimized version
that runs about twice as fast.
This also adds infrastructure to support interrupt checks from
BigInt library code.

Bug: v8:11515
Change-Id: I5f812913697384afca98937e1fb7361b4ec22d62
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773043
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74045}
2021-04-19 15:40:43 +00:00
Jakob Kummerow
7d63260e9f [test][wasm][arm64] Fix JumpTablePatchingStress
This test attempted to call mprotect to switch memory permissions,
which returns an error on MacOS on arm64. The workaround is simple:
don't call mprotect, rely on MacOS-specific permission switching.

See also https://chromium-review.googlesource.com/c/v8/v8/+/2679688
for a related fix in non-test code.

Drive-by: fix host arch detection in gm.py when building on M1 Macs.

Bug: v8:11657
Change-Id: I9b59ee8f2279e28f7561ac071df27508211741f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831877
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74030}
2021-04-19 12:20:03 +00:00
Jakob Gruber
5ecb5bd978 [nci] Remove more NCI-specific logic
Some logic still remains, notably in compiler/.

Bug: v8:8888
Change-Id: I7e7f10a487e1bc8b90bbbfedbc46bf09bae0717e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2825589
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73969}
2021-04-15 09:01:49 +00:00
Ulan Degenbaev
e43e1dcd17 [test] Introduce a third_party_heap test flag
The flag is useful for disabling tests that are not supported in
the third_party_heap build configuration.

Example usage in the status files:
['third_party_heap', {
  'testname': [SKIP],
}],  # third_party_heap

Bug: v8:11155
Change-Id: I991532bf7cdf89d8c505e4d6cbd7cf9e4d70dd63
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821960
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73957}
2021-04-14 14:55:35 +00:00
Shu-yu Guo
3ada6f2740 [ptr-cage] Introduce PtrComprCage
The pointer compression cage is the virtual memory reservation
that all compressed pointers fall within. This CL splits pointer
compression into two modes: a per-Isolate cage and a shared cage
among multiple Isolates.

When multiple Isolates are sharing a cage, they can decompress
each others' pointers and share the same virtual memory range.

Bug: v8:11460
Change-Id: I7b89b7413b8e7ca6b8b6faafd083dc387542a8b4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783674
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73916}
2021-04-12 17:49:43 +00:00
Wenyu Zhao
5e0b94c4dc Allowing map word to be used for other state in GC header.
This CL adds features to pack/unpack map words.

Currently V8 cannot store extra metadata in object headers -- because V8
objects do not have a proper header, but only a map pointer at the start
of the object. To store per-object metadata like marking data, a side
table is required as the per-object metadata storage.

This CL enables V8 to use higher unused bits in a 64-bit map word as
per-object metadata storage. Map pointer stores come with an extra step
to encode the metadata into the pointer (we call it "map packing").
Map pointer loads will also remove the metadata bits as well (we call it
"map packing").

Since the map word is no longer a valid pointer after packing, we also
change the tag of the packed map word to make it looks like a Smi. This
helps various GC and barrier code to correctly skip them instead of
blindly dereferencing this invalid pointer.

A ninja flag `v8_enable_map_packing` is provided to turn this
map-packing feature on and off. It is disabled by default.

* Only works on x64 platform, with `v8_enable_pointer_compression`
  set to `false`

Bug: v8:11624
Change-Id: Ia2bdf79553945e5fc0b0874c87803d2cc733e073
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2247561
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73915}
2021-04-12 17:34:13 +00:00
Michael Achenbach
2e91177874 [foozzie] Make stubbing-out typed arrays more robust
Fuzz tests could mess with some library methods used by stubs for
NaN-pattern problems in typed arrays. This change makes the stubs
more robust.

Bug: chromium:1197627
Change-Id: I84975f798d616fd5e82fd9ab84ad01fc35336a04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2820968
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73896}
2021-04-12 07:53:51 +00:00
Z Nguyen-Huu
92973e4bee [v8windbg] Remove list-chunks command
This command is broken, no testing and no clear demand for it.

Change-Id: Ic86ab346ab29a5d6804f74a3d4458bb3332a7718
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814131
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73888}
2021-04-10 02:35:58 +00:00
Shu-yu Guo
5c93a0081e [ptr-cage] Use Isolate directly for decoding external pointers
This removes the heap sandbox's dependency on being able to reconstruct
an Isolate from the pointer cage base address.

Bug: v8:11460
Change-Id: I501ace5b83a2cefdf717de0d7387fd816edfb3f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783673
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73887}
2021-04-09 23:13:18 +00:00
Michael Achenbach
9e391185da [tools] Update auto-roller after renamed branch
No-Try: true
Bug: chromium:1196558
Change-Id: Iffbf6de44caaea0215cbfe33fd28108e9ca4c715
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2808947
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73859}
2021-04-08 10:23:07 +00:00
Victor Gomes
533cc5125a [Error.cause] Implement error cause tc39 proposal
https://github.com/tc39/proposal-error-cause

Bug: chromium:1192162
Change-Id: If6e2d1f105bb520104bb832ccbc7f660bb8115a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784681
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73855}
2021-04-08 10:05:17 +00:00
Z Nguyen-Huu
9512bd22e6 [v8windbg] Add jsstack command
Change-Id: I8ea9403fa2ae8d45300c291a6d9a55b9293e7c1d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2805731
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73846}
2021-04-07 23:56:07 +00:00
Leszek Swirski
9d33c4e68e [tools] Add a tool for finding builtins
Example usage:
    tools/find-builtin LoadIC | xargs code -g

Change-Id: I12c15d3d4a80edbcddfa9cc8b9a515b839c96fdf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2808949
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73827}
2021-04-07 12:51:38 +00:00
Shu-yu Guo
627b6b2f06 Reland^2 "[ptr-cage] Rename IsolateRoot to PtrComprCageBase"
This is a reland of e28dadc207

The original failure was due to a stale Win32 bot. The reland failure
was due to idempotent task deduplication returning the exact same
failure. See crbug/1196064

Original change's description:
> [ptr-cage] Rename IsolateRoot to PtrComprCageBase
>
> Currently, IsolateRoot is both the address of the Isolate root and the
> base address of the pointer compression reservation. This CL teases the
> two uses apart by renaming IsolateRoot to PtrComprCageBase.
>
> - In addition to V8_COMPRESS_POINTERS, add a
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
>
> - Rename GetIsolate* helpers to GetPtrComprCageBase. When
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
>   aliases to GetPtrComprCageBase.
>
> - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
>
> Bug: v8:11460
> Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Auto-Submit: Shu-yu Guo <syg@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73790}

Bug: v8:11460
No-Try: true
Tbr: ishell@chromium.org
Tbr: rmcilroy@chromium.org
Change-Id: Id69311cf3267ebe1297fff159de0be48b15b65a3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806546
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73795}
2021-04-06 01:55:28 +00:00
Shu-yu Guo
562c42511a Revert "Reland "[ptr-cage] Rename IsolateRoot to PtrComprCageBase""
This reverts commit 15c78b45a6.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32277/overview

Original change's description:
> Reland "[ptr-cage] Rename IsolateRoot to PtrComprCageBase"
>
> This is a reland of e28dadc207
>
> Relanding to see if Win32 rel failures from
> https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/overview
> were infra flakes. Could not repro on try bots.
>
> Original change's description:
> > [ptr-cage] Rename IsolateRoot to PtrComprCageBase
> >
> > Currently, IsolateRoot is both the address of the Isolate root and the
> > base address of the pointer compression reservation. This CL teases the
> > two uses apart by renaming IsolateRoot to PtrComprCageBase.
> >
> > - In addition to V8_COMPRESS_POINTERS, add a
> >   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
> >
> > - Rename GetIsolate* helpers to GetPtrComprCageBase. When
> >   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
> >   aliases to GetPtrComprCageBase.
> >
> > - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
> >
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> > Reviewed-by: Igor Sheludko <ishell@chromium.org>
> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
>
> No-Try: true
> Bug: v8:11460
> Tbr: ishell@chromium.org
> Tbr: rmcilroy@chromium.org
> Change-Id: I0a8c3a48999d6737c8c64d2c2703607f14f3fdd0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806169
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73792}

Bug: v8:11460
Change-Id: Ifee92d622c43a91c15f45ef94ff739237bd2024b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806545
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73793}
2021-04-05 23:17:00 +00:00
Shu-yu Guo
15c78b45a6 Reland "[ptr-cage] Rename IsolateRoot to PtrComprCageBase"
This is a reland of e28dadc207

Relanding to see if Win32 rel failures from
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/overview
were infra flakes. Could not repro on try bots.

Original change's description:
> [ptr-cage] Rename IsolateRoot to PtrComprCageBase
>
> Currently, IsolateRoot is both the address of the Isolate root and the
> base address of the pointer compression reservation. This CL teases the
> two uses apart by renaming IsolateRoot to PtrComprCageBase.
>
> - In addition to V8_COMPRESS_POINTERS, add a
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
>
> - Rename GetIsolate* helpers to GetPtrComprCageBase. When
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
>   aliases to GetPtrComprCageBase.
>
> - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
>
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>

No-Try: true
Bug: v8:11460
Tbr: ishell@chromium.org
Tbr: rmcilroy@chromium.org
Change-Id: I0a8c3a48999d6737c8c64d2c2703607f14f3fdd0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806169
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73792}
2021-04-05 23:08:15 +00:00
Francis McCabe
07a9ff4dbb Revert "[ptr-cage] Rename IsolateRoot to PtrComprCageBase"
This reverts commit e28dadc207.

Reason for revert: failed test262 tests;; see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/steps?succeeded=true&debug=false

Original change's description:
> [ptr-cage] Rename IsolateRoot to PtrComprCageBase
>
> Currently, IsolateRoot is both the address of the Isolate root and the
> base address of the pointer compression reservation. This CL teases the
> two uses apart by renaming IsolateRoot to PtrComprCageBase.
>
> - In addition to V8_COMPRESS_POINTERS, add a
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
>
> - Rename GetIsolate* helpers to GetPtrComprCageBase. When
>   V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
>   aliases to GetPtrComprCageBase.
>
> - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
>
> Bug: v8:11460
> Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Auto-Submit: Shu-yu Guo <syg@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73790}

Bug: v8:11460
Change-Id: I19d0e28194fcdb28e89f129a7694ca3fe29fa17a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806168
Auto-Submit: Francis McCabe <fgm@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/master@{#73791}
2021-04-05 21:55:11 +00:00
Shu-yu Guo
e28dadc207 [ptr-cage] Rename IsolateRoot to PtrComprCageBase
Currently, IsolateRoot is both the address of the Isolate root and the
base address of the pointer compression reservation. This CL teases the
two uses apart by renaming IsolateRoot to PtrComprCageBase.

- In addition to V8_COMPRESS_POINTERS, add a
  V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).

- Rename GetIsolate* helpers to GetPtrComprCageBase. When
  V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
  aliases to GetPtrComprCageBase.

- Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.

Bug: v8:11460
Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73790}
2021-04-05 20:54:55 +00:00
Milad Fa
0d87df40c2 PPC [simd]: enable simd on PowerPC 9 and above
This includes the simulator, PPC64 Linux (little endian)
and PPC64 AIX (Big endian) running on P9.

Also enable the related simd tests for PPC64.

Qfma opcodes are added to the selector as part of the enablement.

Change-Id: Idf2bf2eaa9cee489e7315031976bc412358b9868
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2799942
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73782}
2021-04-01 19:43:14 +00:00
Ng Zhi An
31663e6a32 [vim] Update vim scripts
Mostly a port of changes from chromium to support building from
directories other than out/Release or out/Debug.

Also moved tools/ninja/ninja_output.py to tools/vim/ninja_output.py to
be more consistent with chromium's layout.

Change-Id: I73199f10e48b6d9a229bef6af14b84b1ae6be1c2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2797536
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73777}
2021-04-01 16:14:04 +00:00
Jakob Gruber
c76bae7db6 Add a test variant for concurrent_inlining
.. and enable it on fyi bots. Skip one test in this variant due to
incompatible flags.

Bug: v8:7790
Change-Id: I5b8fdd8572435c6f4474c505464ff1a22c830757
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2797287
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73770}
2021-04-01 12:38:14 +00:00
Maya Lekova
3f8aa89e1e Revert "[ic] Add a new MegaDOM IC"
This reverts commit c83c9590ba.

Reason for revert: Speculatively reverting for a failure on Arm GC stress bot - https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Arm%20GC%20Stress/b8851256837192083520/overview

Original change's description:
> [ic] Add a new MegaDOM IC
>
> This patch implements the MegaDOM IC setup and access. A new MegaDOM
> IC state indicates that we've seen only DOM accessors at this access
> site.
>
> This CL only adds support for DOM getters in LoadIC, other kinds of
> access will be added in follow on CLs.
>
> Still remaining TODO before shipping:
> 1. Have a mechanism to invalidate the protector
> 2. Have a mechanism to find the accessors that aren't overloaded
> 3. Use a new builtin to miss to runtime on access check failure
>
> Change-Id: Ie12efe5e9fa284f023043b996d61e7d74e710ee2
> Bug: v8:11321
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2618239
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73733}

Bug: v8:11321
Change-Id: Ib6a55796f2a3c345d4923f9eaa215a6ff55ed15b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2794437
Auto-Submit: Maya Lekova <mslekova@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/master@{#73734}
2021-03-31 09:29:15 +00:00
Sathya Gunasekaran
c83c9590ba [ic] Add a new MegaDOM IC
This patch implements the MegaDOM IC setup and access. A new MegaDOM
IC state indicates that we've seen only DOM accessors at this access
site.

This CL only adds support for DOM getters in LoadIC, other kinds of
access will be added in follow on CLs.

Still remaining TODO before shipping:
1. Have a mechanism to invalidate the protector
2. Have a mechanism to find the accessors that aren't overloaded
3. Use a new builtin to miss to runtime on access check failure

Change-Id: Ie12efe5e9fa284f023043b996d61e7d74e710ee2
Bug: v8:11321
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2618239
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73733}
2021-03-31 08:42:42 +00:00
Z Nguyen-Huu
cbbf6cc1fe [v8windbg] Fix dx @$curisolate()
Change-Id: Iea2fa346bb4d6cd34a1e3f892b9787e75f26237d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2786681
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73669}
2021-03-25 15:52:23 +00:00
Ng Zhi An
c701a39e34 [bash-completion] Support some gm.py completion
Support the various combinations of arch-mode-target that gm.py
understands, and also completion of cctests.

Bug: v8:11567
No-Try: true
Change-Id: I05285a93253f4225889e949890f5352bbc173c91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2774708
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73639}
2021-03-24 16:24:25 +00:00
Camillo Bruni
2668907759 [tools] Fix profview for sparkplug
- Handle sparkplug code
- Handle regexp code-creation events in the tick-processor, which
  have no valid state marker in the maybe_func data
- Remove calls to print() that break the tick-processor web version

Change-Id: Ic726d1ae3a41cd46f42cf5498e8463564d3b6b83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2784562
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73631}
2021-03-24 13:22:21 +00:00
Clemens Backes
7f38169b2e [wasm] Test --no-wasm-generic-wrapper in the stress variant
Generic wasm wrappers are enabled by default now (since
https://crrev.com/c/2562241), so we can remove the flag from the
nooptimization variant. Instead, we should have a configuration which
tests --no-wasm-generic-wrapper to find bugs in the compiled wrappers
earlier.

Also add an entry for contradictory flags, and reformat that list to
respect the 80 columns limit.

R=machenbach@chromium.org
CC=ahaas@chromium.org

Bug: v8:10982
Change-Id: I780aaedbbf7fe761c39a41af1ff2db58c7447a76
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773057
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73560}
2021-03-22 09:45:59 +00:00
Leszek Swirski
0545b16250 [compiler] Enable off-thread finalization by default
Bug: chromium:1011762
Change-Id: I960b3f57fa29f25d4cda038304825375ada686b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2108039
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73530}
2021-03-19 10:07:21 +00:00
Leszek Swirski
791e085d2f [sparkplug] Add always_sparkplug variant
Add an always_sparkplug testing variant, and fix a couple of issues it
found.

Bug: v8:11420
Change-Id: I7d87a41e3413f40271a0140118531f075d633b23
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773047
Reviewed-by: Patrick Thier <pthier@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73529}
2021-03-19 09:52:50 +00:00
Camillo Bruni
b49d7721ac [tools] Improve tools landing page
- Fix link to older tool versions
- Adapt card style to versions page

NOTRY=true

Change-Id: Id857cc1220605d9bf62e1b810bd46c5766633383
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2767228
Commit-Queue: Patrick Thier <pthier@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73485}
2021-03-17 17:02:00 +00:00
Andreas Haas
e4938bffda [wasm] Update spec tests
The bulk-memory proposal and the reference types proposal have been
merged into the main repository, so we don't have to run the proposal
tests anymore.

R=ecmziegler@chromium.org

Change-Id: I14583b8c1c387075442a402458ce04e7c6071f89
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2752165
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73481}
2021-03-17 15:59:14 +00:00
Victor Costan
644b730631 Add test coverage for x86 processors with SSE3 but not SSSE3 support.
One of the x86 ISA extensions is confusingly named SSSE3 (*Supplemental*
Streaming SIMD Extensions 3). SSSE3 supersedes SSE3, and is superseded
by SSE4.

This CL adds testing coverage for x86 CPUs that support SSE3
instructions, but do not support SSSE3 instructions. Chrome supports
these CPUs, and they are used by a non-trivial amount of Chrome's users
on Windows. This CL aims to cover all the spots missed by
https://crrev.com/c/2757893.

Change-Id: I83fc963b977b285898ffe12304443ad67db68d1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764820
Auto-Submit: Victor Costan <pwnall@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73474}
2021-03-17 14:10:34 +00:00
Camillo Bruni
08b7427e29 [tools] callstats improvements
- Sort by labels if no category is selected
- Support page separators in simple txt files.
- Fix un-toggling subcategories
- Prompt for labels when loading multiple files
- Improve parsing performance by using raw for-loops and fixing regexps

Change-Id: Ibd388e4134b4c0722a7f44d7eb4c5c56748e5175
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2759511
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73459}
2021-03-17 10:56:34 +00:00
Michael Achenbach
7073b1a635 [release] Make auto-roller use bot-commit label
No-try: true
Bug: chromium:1176141
Change-Id: I6caa0f9ce530ca3fcc6aa715326727f68aa5c240
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2690586
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73449}
2021-03-16 18:55:21 +00:00
Mathias Bynens
cab07dfbca [bash-completion] Support macOS + jsvu binaries
macOS’s `readlink` doesn’t support the `-f` flag. By using `realpath`
we get the same functionality with added support for macOS.

Finally, this patch adds `v8` and `v8-debug` to the completion
command. These are the binary names used by jsvu [1].

[1]: https://github.com/GoogleChromeLabs/jsvu

Bug: v8:11567
Change-Id: I1ec47752e50bce4bfb97a7ce23571d0a6e55dbc1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2762147
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73438}
2021-03-16 14:06:45 +00:00
Jakob Kummerow
26d153d640 [bash-completion] Support cctest/unittests, and GDB
Because why not.

No-Try: true
Bug: v8:11567
Change-Id: I763d9d0c6704f3f8c5e8336e2157336e159648fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2762139
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73435}
2021-03-16 12:51:46 +00:00
Jakob Kummerow
bfc10de856 [bash-completion] Support experimental Wasm flags
This updates tools/bash-completion.sh to consider flags defined
in src/wasm/wasm-feature-flags.h.

No-Try: true
Change-Id: I0556d237608c88a87d65f739c856f94e35e2123e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2761398
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73423}
2021-03-16 08:54:55 +00:00
Jakob Kummerow
ce90b56d65 [gm.py] Fix Python2 compatibility
The recent arm64 improvements unintentionally required Python3.

No-Try: true
Change-Id: Ide94ea99cb69c530b3896e6577bd0b536e5374c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2754407
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73365}
2021-03-12 10:27:07 +00:00
Z Nguyen-Huu
d193e90c03 Reland "[v8windbg] Add more items in the Locals pane"
This is a reland of 19b62d0b4e

Fixing the misalignment issue founded in usban build by doing four-byte
comparison: compressing the "expected" values such as script.name() and
passing them to CheckProp as type Tagged_t

Original change's description:
> [v8windbg] Add more items in the Locals pane
>
> Add more items in the Locals pane representing the JS function name,
> source file name, and character offset within the source file, so
> that the user doesn’t need to dig through the shared_function_info to
> find them.
>
> Change-Id: I5d42b3c9542885a72e81613503d1d5abf51870b5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712310
> Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
> Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#73282}

Change-Id: Idd77f61905651fbcfae5f5b590094639bc205834
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2744959
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73359}
2021-03-12 08:05:57 +00:00
Clemens Backes
3f9ff062b0 Reland "[no-wasm] Exclude src/wasm from compilation"
This is a reland of 80f5dfda01. A condition
in pipeline.cc was inverted, which lead to a CSA verifier error.

Original change's description:
> [no-wasm] Exclude src/wasm from compilation
>
> This is the biggest chunk, including
> - all of src/wasm,
> - torque file for wasm objects,
> - torque file for wasm builtins,
> - wasm builtins,
> - wasm runtime functions,
> - int64 lowering,
> - simd scala lowering,
> - WasmGraphBuilder (TF graph construction for wasm),
> - wasm frame types,
> - wasm interrupts,
> - the JSWasmCall opcode,
> - wasm backing store allocation.
>
> Those components are all recursively entangled, so I found no way to
> split this change up further.
>
> Some includes that were recursively included by wasm headers needed to
> be added explicitly now.
>
> backing-store-unittest.cc is renamed to wasm-backing-store-unittest.cc
> because it only tests wasm backing stores. This file is excluded from
> no-wasm builds then.
>
> R=jkummerow@chromium.org, jgruber@chromium.org, mlippautz@chromium.org, petermarshall@chromium.org
>
> Bug: v8:11238
> Change-Id: I7558f2d12d2dd6c65128c4de7b79173668c80b2b
> Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2742955
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73344}

TBR=jgruber@chromium.org

Bug: v8:11238
Change-Id: I20bd2847a59c68738b5a336cd42582b7b1499585
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Cq-Include-Trybots: luci.v8.try:v8_linux_verify_csa_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_verify_csa_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2752867
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73348}
2021-03-11 14:29:26 +00:00
Clemens Backes
92bc3d3861 Revert "[no-wasm] Exclude src/wasm from compilation"
This reverts commit 80f5dfda01.

Reason for revert: Fails CSA verification: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20verify%20csa/21766/overview

Original change's description:
> [no-wasm] Exclude src/wasm from compilation
>
> This is the biggest chunk, including
> - all of src/wasm,
> - torque file for wasm objects,
> - torque file for wasm builtins,
> - wasm builtins,
> - wasm runtime functions,
> - int64 lowering,
> - simd scala lowering,
> - WasmGraphBuilder (TF graph construction for wasm),
> - wasm frame types,
> - wasm interrupts,
> - the JSWasmCall opcode,
> - wasm backing store allocation.
>
> Those components are all recursively entangled, so I found no way to
> split this change up further.
>
> Some includes that were recursively included by wasm headers needed to
> be added explicitly now.
>
> backing-store-unittest.cc is renamed to wasm-backing-store-unittest.cc
> because it only tests wasm backing stores. This file is excluded from
> no-wasm builds then.
>
> R=​jkummerow@chromium.org, jgruber@chromium.org, mlippautz@chromium.org, petermarshall@chromium.org
>
> Bug: v8:11238
> Change-Id: I7558f2d12d2dd6c65128c4de7b79173668c80b2b
> Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2742955
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73344}

Bug: v8:11238
Change-Id: I93672002c1faa36bb0bb5b4a9cc2032ee2ccd814
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2752866
Auto-Submit: Clemens Backes <clemensb@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/master@{#73346}
2021-03-11 13:09:09 +00:00
Clemens Backes
80f5dfda01 [no-wasm] Exclude src/wasm from compilation
This is the biggest chunk, including
- all of src/wasm,
- torque file for wasm objects,
- torque file for wasm builtins,
- wasm builtins,
- wasm runtime functions,
- int64 lowering,
- simd scala lowering,
- WasmGraphBuilder (TF graph construction for wasm),
- wasm frame types,
- wasm interrupts,
- the JSWasmCall opcode,
- wasm backing store allocation.

Those components are all recursively entangled, so I found no way to
split this change up further.

Some includes that were recursively included by wasm headers needed to
be added explicitly now.

backing-store-unittest.cc is renamed to wasm-backing-store-unittest.cc
because it only tests wasm backing stores. This file is excluded from
no-wasm builds then.

R=jkummerow@chromium.org, jgruber@chromium.org, mlippautz@chromium.org, petermarshall@chromium.org

Bug: v8:11238
Change-Id: I7558f2d12d2dd6c65128c4de7b79173668c80b2b
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2742955
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73344}
2021-03-11 12:43:16 +00:00
Leszek Swirski
668513d8ab [sparkplug] Add fuzzer support for CompileBaseline
Robustify %CompileBaseline against fuzzing, and allowlist it in the
fuzzer.

Bug: v8:11420
Change-Id: I44947014c8c9362d80ea98636dbbaa5d07d6a177
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739643
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73325}
2021-03-10 17:49:18 +00:00
Jakob Kummerow
e383d76c0c [build] Support Linux-arm64 builds hosts
Building arm64 binaries on arm64 hosts works as long as you set
the correct options in args.gn. This patch teaches gm.py to do
that.
Building 32-bit arm binaries on arm64 hosts requires an extra
definition in snapshot_toolchain.gni (as well as some system
setup to support running 32-bit binaries).

Change-Id: I66c1f8f51932e2f5425033ef09181c31ea5d633e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2743889
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73323}
2021-03-10 17:06:06 +00:00
Michael Achenbach
cb2ec66dc5 Whitespace change to test CAS
Bug: chromium:1154223
Change-Id: Ie1786a499f87f86bc6f91a92a0dfb1a02889ef46
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2748083
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73312}
2021-03-10 09:07:30 +00:00
Michael Achenbach
7c6045fdc0 Whitespace change to test CAS migration
Bug: chromium:1154223
Change-Id: I9545db5ce76f973f8402cefe588d994d1519135b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2745137
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73297}
2021-03-09 15:35:56 +00:00
Bill Budge
8a2144b5bc Revert "[v8windbg] Add more items in the Locals pane"
This reverts commit 19b62d0b4e.

Reason for revert: Undefined behavior
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/15449

Original change's description:
> [v8windbg] Add more items in the Locals pane
>
> Add more items in the Locals pane representing the JS function name,
> source file name, and character offset within the source file, so
> that the user doesn’t need to dig through the shared_function_info to
> find them.
>
> Change-Id: I5d42b3c9542885a72e81613503d1d5abf51870b5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712310
> Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
> Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#73282}

Change-Id: I616cd642379b97dff5fb0c66aeb6488e2f9b298b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2744420
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73284}
2021-03-08 23:46:38 +00:00
Z Nguyen-Huu
19b62d0b4e [v8windbg] Add more items in the Locals pane
Add more items in the Locals pane representing the JS function name,
source file name, and character offset within the source file, so
that the user doesn’t need to dig through the shared_function_info to
find them.

Change-Id: I5d42b3c9542885a72e81613503d1d5abf51870b5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712310
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73282}
2021-03-08 22:15:58 +00:00
Seth Brenith
90a66422b7 Remove 'length' field from ScopeInfo
This change relands the last part of https://crrev.com/c/2601880 .

ScopeInfo has a vestigial 'length' field from when it used to be a
FixedArray. This change removes that field, which saves some memory.

More specifically:

- Make ScopeInfo inherit from HeapObject, not FixedArrayBase which
  supplied the 'length' field.
- Change FactoryBase::NewScopeInfo to allocate the updated object shape.
  It maintains the existing behavior of filling the newly-allocated
  object with undefined, even though that's not a valid ScopeInfo and
  further initialization is required.
- Change a few length computations to use HeapObject::kHeaderSize rather
  than FixedArray::kHeaderSize.
- Remove an unnecessary heap verifier function.

Change-Id: I9b3980157568fdb0402fa31660949966b401fd31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2733037
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73278}
2021-03-08 20:03:47 +00:00
Jakob Kummerow
76a302f97d [gm.py] Fix goma detection
Now that Goma is part of depot_tools (and any stale standalone
checkouts in ~/goma are dysfunctional), update gm.py's detection
logic.
Note: this only affects new args.gn files created by gm.py. On
machines where the build is already set up, this has no effect.

Fixed: v8:11160
No-Try: true
Change-Id: I19f475a51d4345d803d49d3ad2720a0f4f6f84bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2735637
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73194}
2021-03-04 15:36:36 +00:00
Clemens Backes
8890bb21f9 [no-wasm] Remove wasm debugging support
This removes all wasm includes from src/debug and src/inspector if
webassembly is disabled (v8_enable_webassembly=false). It also removes
the definition of {WasmValueObject} and {v8::debug::WasmScript}.
This will allow to later fully exclude the src/wasm directory from
compilation (once other components are fixed).

R=bmeurer@chromium.org, machenbach@chromium.org

Bug: v8:11238
Change-Id: I41a1d83d01fbb6c015cdfd6cc063bad90052505d
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2726506
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73138}
2021-03-02 18:27:53 +00:00
Camillo Bruni
1b11278eb0 [tools] Revamp callstats.html
- Fix diff coloring when a baseline is selected
- Cleanup UI and use dark-mode by default
- Reuse CSS from the system-analyzer
- Support loading mutliple files by default everywhere
- Use hideable panels from system-analyzer

Change-Id: Iafe271d2f86fbbd10a940b3ac99874dd51f45442
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2721763
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73128}
2021-03-02 14:49:02 +00:00
Dan Elphick
00abcea4af [build] Create v8_internal_headers target
Split out all the headers from v8_compiler/v8_compiler_opt and
v8_base_without_compiler into v8_internal_headers since the headers
have inter-dependencies that otherwise make it impossible to satisfy gn
check.

Also adds new v8_header_set torque_runtime_support that exports
src/torque/runtime-support.h separately from the generated headers.

This reduces the number of gn check failures from 169 to 59.

Bug: v8:7330
Change-Id: Ie7ebc894910b7efa02011a74da964e11995c7f4f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712569
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73104}
2021-03-01 16:30:22 +00:00
Dominik Inführ
17cba4f0f0 [heap] Safepointing with an atomic state
To improve performance of parking, keep the thread state in an atomic
variable instead of protecting it with a mutex.

However the mutex was used e.g. to force Unpark() to block while the
safepoint operation was still running. Therefore the safepoint algorithm
has to change as well.

Park() and Unpark() use CAS operation to transition the state.
Safepoint() uses a relaxed load for checking whether a safepoint was
requested. Since Safepoint(), Park() and Unpark() all have a slow path,
there is no need for busy-waiting on the main thread.

We need two more ThreadStates:
* SafepointRequested: This state is set by GlobalSafepoint to force
    Running threads into the slow path on Safepoint() and Park(). This
    state also replaces the separate atomic<bool> safepoint_requested_
    field we used before.
* ParkedSafepoint: This state is set by GlobalSafepoint as well to force
    parked threads into the slow path on Unpark().

When stopping all threads, GlobalSafepoint transitions states from
Running --> SafepointRequested and Parked --> ParkedSafepoint to force
the slow path for all three methods. After performing the transition
for each thread we know the exact number of Running threads and wait
until each of them either reached a safepoint or parked itself.

Design doc: https://docs.google.com/document/d/1p9klWyqT_AScAnK_PdHZTcNhZGzoBiYWPkUciIh2C58/edit?usp=sharing

Bug: chromium:1177144, v8:10315
Change-Id: I8697da915c7d18e2fb941f1bedf6181226408feb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704075
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73089}
2021-03-01 08:41:12 +00:00
LiuYu
dc0a1b4081 [mips] Skip all Simd tests on MIPS like PPC
Simd unsupported in simulator and some machines on mips.

Original Commit Message:

  As of https://crrev.com/c/2629465, Simd tests cannot pass on
  architectures without Simd support. Tests will need to be
  re-enabled once Simd support is fully implemented on PPC.

Port: aaacffa1e0
Change-Id: Ic7451211cbe2bfa13952b994ea440189620579cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2717158
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#73067}
2021-02-26 04:23:06 +00:00
Thibaud Michaud
ef24469bc3 Revert "[wasm][eh] Stage exception handling"
This reverts commit 1db61fb30b.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20debug/34083/overview

Original change's description:
> [wasm][eh] Stage exception handling
>
> This was staged through a back-merge in v8.9. Also stage it for the
> upcoming v9.0 release.
>
> R=​ahaas@chromium.org
>
> Bug: v8:8091
> Change-Id: Ie9e6d25bbc5d428e5c9128345209f95f2078b733
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2715524
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73013}

Bug: v8:8091
Change-Id: I18b9706e8aab4883a3d3c120a6cd06e7232aecf7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718148
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73016}
2021-02-24 17:38:25 +00:00
Thibaud Michaud
1db61fb30b [wasm][eh] Stage exception handling
This was staged through a back-merge in v8.9. Also stage it for the
upcoming v9.0 release.

R=ahaas@chromium.org

Bug: v8:8091
Change-Id: Ie9e6d25bbc5d428e5c9128345209f95f2078b733
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2715524
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73013}
2021-02-24 15:53:13 +00:00
Clemens Backes
b411a66486 [build] Assert that webassembly is disabled on lite mode
This avoids having to check both flags in two places, and prevents
people from trying to enable WebAssembly in lite mode (which would
currently build, but you still would not get Wasm support).

The downside is that the default value shown by `gn args --list` now
sais `""` instead of `true`.

R=machenbach@chromium.org, rmcilroy@chromium.org
CC=ecmziegler@chromium.org

Bug: v8:11238
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Change-Id: Ib2fe6c32cbdeb89895265bb898abf7284c560cc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712783
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72957}
2021-02-23 15:00:33 +00:00
Dan Elphick
3a9975191a [build] Improve build dependencies for gn check
Currently if gn check is enabled (with v8/third_party ignored), there
are many errors due to headers being used without adding the proper
dependency in BUILD.gn (or because it's being used transitively without
a public_deps chain).

This makes the number of errors go from 2114 to 195.

Apart from adding dependencies, it also moves _v8_internal_Node_Print
from objects-printer.cc to node.cc so it can see the Node::Print method
which wouldn't otherwise be possible without a circular dependency. Also
removes the previously deleted compiler/graph-builder-tester.h file.

Bug: v8:7330
Change-Id: Icb34585fbef621588265cf4267cfc88ecbcf0a72
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2702331
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72908}
2021-02-22 13:13:30 +00:00
Clemens Backes
1813665413 [no-wasm] Skip wasm tests if wasm is disabled
This CL introduces a test runner flag to detect if webassembly has been
disabled. Since all tests that require wasm are alrady skipped in
lite mode, we introduce a has_webassembly flag for the test runner which
checks for v8_enable_webassembly=true and v8_enable_lite_mode=false.
As a drive-by, we also do not set the V8_ENABLE_WEBASSEMBLY
preprocessor flag if lite mode is enabled.

The status files are updated by splitting wasm tests from the
"lite_mode" section and checking for "not has_webassembly" instead.

Note that the v8_enable_webassembly=false configuration is not tested
on any bot currently, but I will make sure that all tests keep passing
on further changes in this configuration.

R=machenbach@chromium.org

Bug: v8:11238
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Change-Id: I1841eb1f1633cb47e0c079f4a4a4d769ca3a9cbb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710425
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72898}
2021-02-22 11:06:40 +00:00
Camillo Bruni
bcac4bd0e5 [tools] Prepare parse-processor for baseline compiler
Change-Id: I39e97298bd1b802bd011214e820babc69f6e7d00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2682639
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72895}
2021-02-22 10:51:00 +00:00
Camillo Bruni
8b15e84ba4 [tools] Callstats ignore last empty line in CSV files
- Remove try-catch for better debugging in DevTools

Change-Id: Icfa1fcb21af45b785d570f226cd9e016a8371062
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685162
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72889}
2021-02-22 09:43:10 +00:00
Frank Emrich
a2c31f7490 [dict-proto] C++ implementation of SwissNameDictionary, pt. 3
This is a reland of
https://chromium-review.googlesource.com/c/v8/v8/+/2688058

This CL is part of a series that adds the C++ implementation of
SwissNameDictionary, a deterministic property backing store based on
Swiss Tables.

This CL adds the initialization code, factory functions and a
canonical SwissNameDictionary plus all helpers required for that.

Bug: v8:11388
Change-Id: I9cf66a3fa755288f7730f55abfb6e6cea82f6b03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2703653
Commit-Queue: Frank Emrich <emrich@google.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72857}
2021-02-19 10:18:41 +00:00
Seth Brenith
6c922e395d Revert "Remove 'length' field from ScopeInfo"
This reverts commit f731e13f00.

Reason for revert: perf regressions, chromium:1179757

Original change's description:
> Remove 'length' field from ScopeInfo
>
> ScopeInfo has a vestigial 'length' field from when it used to be a
> FixedArray. This change removes that field, which saves some memory.
>
> More specifically:
>
> - Make ScopeInfo inherit from HeapObject, not FixedArrayBase which
>   supplied the 'length' field.
> - Privatize the FixedArray-style functions that provide access to
>   ScopeInfo fields by index, and move them from scope-info-inl.h to
>   scope-info.cc. Those functions are still used pretty heavily during
>   initialization (ScopeInfo::Create, etc.), but at least we can avoid
>   presenting them to the rest of the world.
> - Change FactoryBase::NewScopeInfo to allocate the updated object shape.
>   It maintains the existing behavior of filling the newly-allocated
>   object with undefined, even though that's not a valid ScopeInfo and
>   further initialization is required.
> - Move part of AccessorAssembler::ScriptContextTableLookup into a new
>   Torque macro, because it used to rely on casting ScopeInfo to
>   FixedArrayBase.
> - In V8HeapExplorer::AddEntry, don't claim that ScopeInfo objects are
>   arrays. I think it makes more sense to list them under "(system)" in
>   the dev tools, like most other V8 internal types.
>
> Bug: v8:8952
> Change-Id: I8278e3a90027d4409f0d268da0fe7080754c6b8c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2601880
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#72830}

Bug: v8:8952
Change-Id: I00a69da79e5ac6aaae4436a41ce773ae014cc775
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2706086
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Seth Brenith <seth.brenith@microsoft.com>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72855}
2021-02-19 08:29:46 +00:00
Seth Brenith
f731e13f00 Remove 'length' field from ScopeInfo
ScopeInfo has a vestigial 'length' field from when it used to be a
FixedArray. This change removes that field, which saves some memory.

More specifically:

- Make ScopeInfo inherit from HeapObject, not FixedArrayBase which
  supplied the 'length' field.
- Privatize the FixedArray-style functions that provide access to
  ScopeInfo fields by index, and move them from scope-info-inl.h to
  scope-info.cc. Those functions are still used pretty heavily during
  initialization (ScopeInfo::Create, etc.), but at least we can avoid
  presenting them to the rest of the world.
- Change FactoryBase::NewScopeInfo to allocate the updated object shape.
  It maintains the existing behavior of filling the newly-allocated
  object with undefined, even though that's not a valid ScopeInfo and
  further initialization is required.
- Move part of AccessorAssembler::ScriptContextTableLookup into a new
  Torque macro, because it used to rely on casting ScopeInfo to
  FixedArrayBase.
- In V8HeapExplorer::AddEntry, don't claim that ScopeInfo objects are
  arrays. I think it makes more sense to list them under "(system)" in
  the dev tools, like most other V8 internal types.

Bug: v8:8952
Change-Id: I8278e3a90027d4409f0d268da0fe7080754c6b8c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2601880
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#72830}
2021-02-17 21:23:59 +00:00
Bill Budge
1ff071c1e2 Revert "[dict-proto] C++ implementation of SwissNameDictionary, pt. 3"
This reverts commit 2f8a7561cb.

Reason for revert: Speculative revert, lots of segfaults on Arm:
https://ci.chromium.org/p/v8/builders/ci/V8%20Arm%20-%20debug/17781

Original change's description:
> [dict-proto] C++ implementation of SwissNameDictionary, pt. 3
>
> This CL is part of a series that adds the C++ implementation of
> SwissNameDictionary, a deterministic property backing store based on
> Swiss Tables.
>
> This CL adds the initialization code, factory functions and a
> canonical SwissNameDictionary plus all helpers required for that.
>
> Bug: v8:11388
> Change-Id: I6bb92740afefc7d05433cfa62023e6da5e8213c7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2688058
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Frank Emrich <emrich@google.com>
> Cr-Commit-Position: refs/heads/master@{#72824}

Bug: v8:11388
Change-Id: Ia5dae584b0fb452b12c5d64ee63ffa418c83f91b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698758
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72829}
2021-02-17 18:48:21 +00:00
Frank Emrich
2f8a7561cb [dict-proto] C++ implementation of SwissNameDictionary, pt. 3
This CL is part of a series that adds the C++ implementation of
SwissNameDictionary, a deterministic property backing store based on
Swiss Tables.

This CL adds the initialization code, factory functions and a
canonical SwissNameDictionary plus all helpers required for that.

Bug: v8:11388
Change-Id: I6bb92740afefc7d05433cfa62023e6da5e8213c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2688058
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Frank Emrich <emrich@google.com>
Cr-Commit-Position: refs/heads/master@{#72824}
2021-02-17 17:23:49 +00:00
Milad Fa
aaacffa1e0 PPC: skip all Simd tests on PPC
As of https://crrev.com/c/2629465, Simd tests cannot pass on
architectures without Simd support. Tests will need to be re-enabled
once Simd support is fully implemented on PPC.

Change-Id: I963639f1afa0c0ca7be3ca4b2fc06e874235b903
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2693056
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72788}
2021-02-16 19:52:35 +00:00
Michael Achenbach
a7d7c3c37d Whitespace change to trigger bots
Change-Id: I72964af375a5dbaaa8a52df0c042422803aabf75
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692700
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72730}
2021-02-15 09:15:36 +00:00
Michael Achenbach
91e1d6e159 Whitespace change to trigger bots
Change-Id: I0e17d34f7c1350291c40320a1a95ea140a7d937c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692698
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72729}
2021-02-15 08:46:41 +00:00
Benedikt Meurer
a9b6f3f7e6 [inspector][stack-traces] Remove support for "displayName".
As outlined in the design document linked below, we're removing the
support for the non-standard Function.displayName property for the
purpose of Error.stack and DevTools Inspector stack traces. The
motivation here is that the negative lookup is costly, and we have
Function.name as a standard alternative (configurable since ES6 for
exactly this reason).

I dediced to go with JSFunction::GetDebugName(), since
JSFunction::GetName() was confusing in that it'd only get the "name"
property's value if it's a data property, but not with accessors.
JSFunction::GetDebugName() makes it clear that this is really a debug
helper function and might not give you the "name" property value.

Doc: https://bit.ly/devtools-function-displayName-removal
Bug: v8:8742, chromium:1177685, chromium:1077657, chromium:17356
Change-Id: I7717585cbace626174b2f2ed2a4f68f75429eca1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692189
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72715}
2021-02-12 16:56:23 +00:00
Michael Achenbach
bc403dcb97 [test] Temporarily drop no-sse flags from differential fuzzing
No-Try: true
Bug: v8:11442
Change-Id: I13849c9fa90fa5a971c24694db56a07cc1cccc24
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692570
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72707}
2021-02-12 15:29:46 +00:00
Michael Achenbach
76ce5bbb1d [test] Temporarily skip no-sse flags on flag fuzzer.
No-Try: true
Bug: v8:11442
Change-Id: I856470d95cf0b70e98e09a0ce4e8d80377e7a92a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2691052
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72706}
2021-02-12 15:14:48 +00:00
Leszek Swirski
def5e9c364 [sparkplug] Disable baseline tests under CFI
Add a .status file variable for the "v8_control_flow_integrity" gn arg,
and disable baseline tests for now in that configuration.

No-Tree-Checks: true
No-Try: true
Bug: v8:11439
Change-Id: I7274a168893cfd6619ce98fdd14a692217fd56c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692206
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72698}
2021-02-12 13:57:39 +00:00
Georg Neis
cf7cba8d61 Reland "[compiler] Directly read PropertyCells"
This reverts commit 87df0b7ecc (thus
relands 42cd9eb78d), with fixes for
the discovered issues.

Original change's description:
> Revert "[compiler] Directly read PropertyCells"
>
> This reverts commit 42cd9eb78d.
>
> Reason for revert: Clusterfuzz issues, e.g.
> https://bugs.chromium.org/p/chromium/issues/detail?id=1176318
>
> Original change's description:
> > [compiler] Directly read PropertyCells
> >
> > Main changes:
> >
> > - Introduce a new broker data kind kBackgroundSerialized for objects
> >   that can be serialized in the background (when direct reads are on).
> >   (I'm planning to remove kPossiblyBackgroundSerialized in a followup,
> >   in favor of a dynamic choice of kSerialized or kBackgroundSerialized).
> > - Make PropertyCell use that new kind.
> > - Introduce a bottleneck in runtime code for changes to PropertyCells
> >   and make sure that a certain protocol is followed that allows
> >   concurrent reads from the background thread.
> > - Improve interface of PropertyCell in various ways.
> >
> > Bug: v8:7790
> > Change-Id: If3d7926c3b894808811348b4b2bed153f5c06897
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2661462
> > Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> > Commit-Queue: Georg Neis <neis@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#72586}
>
> TBR=ulan@chromium.org,neis@chromium.org,verwaest@chromium.org,nicohartmann@chromium.org
>
> Change-Id: Id04145760c49fa379bc5a3fc16eba664025a9180
> Bug: v8:7790
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685125
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72619}

Bug: v8:7790, chromium:1176509, chromium:1176318, chromium:1176504
Change-Id: Icaf285912bb948432a4a2d599cd174f6a5aa296e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685166
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72697}
2021-02-12 13:52:40 +00:00
Leszek Swirski
c913ef3a91 [sparkplug] Change Sparkplug to Baseline
Currently we sometimes refer to baseline code or the baseline compiler
by its codename (Sparkplug). The codename is fun, but we should be
consistent and call things by one name or the other. Following the
pattern of Ignition stuff being called "interpreter", we call Sparkplug
"baseline", and leave the codename only in flags and variants.

Bug: v8:11420
Change-Id: I432e5629518be7c7ad38b6acff024c91d4cfd6d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692186
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72696}
2021-02-12 13:51:35 +00:00
Benedikt Meurer
eed0d27c2f [stack-traces] Simplify and speedup stack trace collection.
Following up on https://crrev.com/c/2689185, this CL significantly
simplifies the whole implementation of the stack trace capturing.

Before this CL, capturing any stack trace (for the purpose of the API or
Error.stack) would roughly work like this:

  1. The CaptureStackTrace() function uses the StackFrameIterator to
     walk the system stack. For each native frame it uses the
     FrameSummary abstraction to get all (including potentially inlined)
     frames. For each of those it appends a record consisting of six
     elements to a FrameArray (this holds pointers to the actual
     closures and receivers).
  2. Afterwards the FrameArray is shrinked to the required size, and a
     new FixedArray is allocated, and initialized with new
     StackTraceFrame objects where each holds a reference to the
     FrameArray, the index of the frame, and an initially uninitialized
     StackFrameInfo reference. This new FixedArray is then returned from
     CaptureStackTrace() and either stored on a message object or
     provided to the API as v8::StackTrace.

The new approach removes a lot of the machinery in between and directly
creates a FixedArray of StackFrameInfo objects in CaptureStackTrace().
These StackFrameInfo objects are directly exposed as v8::StackFrame on
the public API, and they hold the six fields that were previously stored
flat in the FrameArray. This not only avoids a lot of copying around of
data and creation of temporary objects and handles, but most importantly
unifies and simplifies the stack frame function inside StackFrameInfo,
so you no longer need to wonder which function / object might be
responsible for a certain API.

There's still a lot of room for improvement. In particular we currently
don't cache the source position for a given StackFrameInfo (or
globally), but rather recompute it every time. This is still very fast,
significantly faster than the previous approach.

There are some notable (potentially user visible) changes:

  - The CallSite#GetPosition() method now consistently returns the
    Wasm module relative bytecode offset for all Wasm frames (previously
    it'd return the function relative bytecode offset for non-asm.js
    Wasm frames).
  - The column and line numbers returned from StackFrameInfo methods are
    consistently 1-based now, instead of sometimes being 0-based (Wasm)
    and sometimes being 1-based (JS and asm.js Wasm). The only
    potentially noticable difference is that for
    CallSite#GetLineNumber() no longer returns 0 for Wasm frames, but
    that was wrong and useless anyways.
  - CallSite#GetThis() would sometimes return the_hole, another bug
    flushed out by this CL.

The CL also contains some other not noteworthy drive-by-cleanups.

Fixed: chromium:1057211
Bug: chromium:1077657, chromium:1069425, v8:8742
Bug: chromium:1127391, chromium:1098530, chromium:981541
Change-Id: Iff12f6838a4d99080db8dd96bccc14440affc5a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2689183
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72694}
2021-02-12 13:49:27 +00:00