The dummy sweeping algorithm didn't actually remove objects from the
internal list.

Bug: chromium:1056170
Change-Id: I29a93a2ac7fc36ca95125805076ff5ce257de8a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2138433
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67033}

This reverts commit 2de2d3dc.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/11982?

Original change's description:
> [runtime] Amortize descriptor array growing for fast-mode prototypes
> 
> This avoids an O(n^2) algorithm that creates an equal amount of garbage.
> Even though the actual final descriptor array might be a little bigger,
> it reduces peak memory usage by allocating less.
> 
> Bug: b:148346655
> Change-Id: I984159d36e9e0b37c19bc81afc90c94c9a9d168a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135728
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67031}

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

Change-Id: I366141f1dbba62ff268df7ef625cc318f8423818
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: b:148346655
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2139212Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67032}

This avoids an O(n^2) algorithm that creates an equal amount of garbage.
Even though the actual final descriptor array might be a little bigger,
it reduces peak memory usage by allocating less.

Bug: b:148346655
Change-Id: I984159d36e9e0b37c19bc81afc90c94c9a9d168a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135728
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67031}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/ae8694b4..62b8fce3

62b8fce Deleting previously valid generated tests by Rick Waldron · 2 days ago master
539c001 Updating test with 'o?.#field' to be valid program by Caio Lima · 2 days ago
df59ad6 Add AsyncIteratorClose tests by Alexey Shvayka · 2 days ago
fccd9c4 Add IteratorClose tests by Alexey Shvayka · 2 days ago
966fc11 Migrate FinalizationRegistry tests to per-item callback API by Shu-yu Guo · 2 days ago
4199a3b Add integer index property name test by Alexey Shvayka · 3 days ago
b69390e Add string property name test by Alexey Shvayka · 3 days ago
00cf7a1 Rename "trap-is-undefined-receiver.js" by Alexey Shvayka · 3 days ago
40a1a6f Improve RegExp LegacyOctalEscapeSequence coverage (#2558) by Alexey Shvayka · 3 days ago
772fd32 Promise.any: remove erroneous SpeciesConstructor tests until a better solution can be found. (#2562) by Rick Waldron · 3 days ago
ffaae1f Logical Assignment Operators: additional syntax tests by Rick Waldron · 4 days ago
2778324 Fix tests by Justin Ridgewell · 4 days ago
78dbc40 Add logical-assignment-operators feature by Justin Ridgewell · 4 days ago
fdf4675 Add tests for Logical Assignment by Justin Ridgewell · 4 days ago
6499fa6 Adding missing cases of instance field without assignment and static field with assignment by Caio Lima · 4 days ago
740e157 Adding test to cover case where there is a static field named as 'static' by Caio Lima · 4 days ago
d279980 Add single quote string literal test by Alexey Shvayka · 4 days ago
4742461 Add double quote string literal test by Alexey Shvayka · 4 days ago
1150fe4 Add template literal test by Alexey Shvayka · 4 days ago
b90a11e Add `throw` method test by Alexey Shvayka · 4 days ago
543370c Add `return` method test by Alexey Shvayka · 4 days ago
1bf4e15 Add `next` method test by Alexey Shvayka · 4 days ago

Bug: v8:7834, v8:8179, v8:10394, v8:10395, v8:10396, v8:10397
Change-Id: Ib5c0e842179b9592501215f8789529c1070b118b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2136291
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67030}

WasmValue holds a Wasm value with its type. This will be exposed to the
inspector (via a to-be-created class in debug_interface.h) for debugging
in DevTools.

Design at http://doc/1XQlX6DWsv6BPYnRtw-JZSASPEjsRlyXLnke7TTQ9Wrg.

Bug: v8:10347
Change-Id: Ib523e617d46fdf1adb13d13bf49749c4ce23a126
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2132720Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67029}

This reverts commit cff2617b.

Reason for revert: Breaks https://ci.chromium.org/p/v8/builders/ci/V8%20Win64%20-%20msvc/13100?

Original change's description:
> cppgc: Stack scanning support for Windows native
> 
> Assumes that (is_clang = false && is_win) => Windows native (MSVC).
> 
> Cross-compile builds will use clang and not the native tools and thus
> not fall into this category.
> 
> This CL adds x86 and x64 MASM trampolines that can be used with the
> native Windows toolchain (ml.exe, ml64.exe), when using is_clang =
> false.
> 
> Bug: chromium:1056170
> Change-Id: Ic37ce721a76ce027ebf45bef441b8fba4789dc9b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137408
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67025}

TBR=mlippautz@chromium.org,bikineev@chromium.org

Change-Id: I86286d4f438468350a81b3965956d47ae35d1c6d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2138432Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67028}

Needed to land ICU67.1 soon.

Bug: v8:10393
Change-Id: I3c7737ca600d6ccfdc46ffaddfb318ce60bc7618
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2136489Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67027}

This relands commit 7d955faa.

Changed the test case to use i16x8 splat instead of i8x16 splat,
the latter was causing issues when doing scalar lowering. This
change still causes the regression test to fail without the fix.

Original change's description:
> [wasm-simd][x64][ia32] Do not overwrite input register
>
> We are ovewriting input register (contains the shift) when we are
> masking it, instead, move to a temporary,then mask it.
>
> Bug: chromium:1065599
> Change-Id: Iab72b94581239447e444746681387350b576e24a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2125941
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#66997}

Bug: chromium:1065599
Change-Id: I0dc78ddb013652ef88c07d065c3f6877937c5300
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2136220Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67026}

Assumes that (is_clang = false && is_win) => Windows native (MSVC).

Cross-compile builds will use clang and not the native tools and thus
not fall into this category.

This CL adds x86 and x64 MASM trampolines that can be used with the
native Windows toolchain (ml.exe, ml64.exe), when using is_clang =
false.

Bug: chromium:1056170
Change-Id: Ic37ce721a76ce027ebf45bef441b8fba4789dc9b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137408
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67025}

Shifts values are in register, not immediate.

Bug: v8:8934
Bug: v8:10392
Change-Id: I7fed9dcd3531ec5e2b28061f0dd1675616e19f7b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135930Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67024}

Bug: chromium:1056170
Change-Id: I1d6f28f6bc569af75f6d378041f2c6fe94a538c6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135635Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67023}

Implement i8x16.bitmask, i16x8.bitmask, i32x4.bitmask on x64.

Bug: v8:10308
Change-Id: Id47cb229de77d80d0a7ec91f4862a91258ff1979
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2127317
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67022}

Change-Id: I2097c5dec4d909a7e259a081706ad79a8a1684bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137414
Auto-Submit: Dan Elphick <delphick@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67021}

Currently, only one memory is supported.

For memory, we would use name as follows.
1. If import: use <import_module>.<field_name> from WasmImport.
2. If export: use <field_name> from WasmExport.
3. Use memory<index>.

Doc: https://docs.google.com/document/d/1XoXWONLBgZWQ9dhtoMpQPvD0fnnWA50OorsuSXfME3g
Bug: v8:10242
Change-Id: Ifd342bcd86ac302f5b43f2ee88a8ea21a28b5a0f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2132724
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67020}

This reverts commit 44826509.

Reason for revert: Broke V8 Linux64 TSAN https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/30932?

Original change's description:
> [wasm] Debug in Liftoff by default
> 
> This flips the --debug-in-liftoff flag to be on by default.
> There are still some outstanding issues with that configuration, but not
> more than with the interpreter configuration. Thus flip now, such that
> we can fully focus on stabilizing that config.
> 
> R=​ecmziegler@chromium.org
> 
> Bug: v8:10351
> Change-Id: I7681f40aa2516557ef3ab4efd9a2c1f88e3b4df7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135727
> Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67018}

TBR=clemensb@chromium.org,ecmziegler@chromium.org

Change-Id: Idd0f7f6101e55785fba9afc3d9af09c0324d7c3b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10351
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137565Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67019}

This flips the --debug-in-liftoff flag to be on by default.
There are still some outstanding issues with that configuration, but not
more than with the interpreter configuration. Thus flip now, such that
we can fully focus on stabilizing that config.

R=ecmziegler@chromium.org

Bug: v8:10351
Change-Id: I7681f40aa2516557ef3ab4efd9a2c1f88e3b4df7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135727Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67018}

This is a reland of c9ce1b56

Original change's description:
> Reland "[wasm] Deduplicate wasm scripts"
> 
> This is a reland of 6ebccbd1
> 
> Original change's description:
> > [wasm] Deduplicate wasm scripts
> > 
> > R=clemensb@chromium.org
> > 
> > Bug: v8:6847
> > Change-Id: I4509a7011a0d32f5bbd2eabf3d2ee6ef5304263d
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2124320
> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#66981}
> 
> Bug: v8:6847
> Change-Id: I74f51b9b15df74de800fbbf031515d26aaa70dbc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135735
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67006}

Bug: v8:6847
Change-Id: I82b83deaa826fd12d4605f66c5921d432169248d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135643Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67017}

With this change we support allocation of objects and keeping them
alive via conservative stack scan.

This reverts commit 2b047a58.

Change-Id: Iac1913e7ef0556c28399509a160777a89e60150c
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137402
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67016}

This shrinks the WasmCode a bit more (to the minimum which is currently
required) and at the same time makes space for more flags to be stored
in a bitfield.

R=ahaas@chromium.org

Bug: v8:10254
Change-Id: I98a24e917a00d74dd2306f18d45525e82b245826
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135738Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67015}

Assumes that (is_clang = false && !is_win) => GCC or other compiler with
inline assembly that is gas-compatible.

Bug: chromium:1056170
Change-Id: I1a2a2d13b7d4af630349d9194b64394c9736ad3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137405Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67014}

This is a minimal version of https://crrev.com/c/2135642 intended for
backmerges.

Ensure that the interpreter has space for all required registers.

Bug: chromium:1067270
Change-Id: Iefd016b4845fb8698d1e0ef5f6a03df0e66aa576
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137403
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67013}

Port dd1dbd99

R=jing.bao@intel.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I857933ec03c7ee57a44eab0629435f9b6c7c5290
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137156Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#67012}

Bug: chromium:1056170
Change-Id: I417a0f05bcd185e969fb087a6b132e88c3fa3a5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2129635Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67011}

Typed array iteration throws a TypeError if the receiver is not
a typed array. The JSCallReducer didn't take that into account.

Bug: chromium:1067544
Change-Id: Ib065ba1b7881dc0b62242fc416fa16023a7fa244
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135632Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67010}

This reverts commit 44a1ed8f.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20gcc/6124?

Original change's description:
> cppgc: Integrate conservative stack scan into GC
> 
> With this change we support allocation of objects and keeping them alive via
> conservative stack scan.
> 
> Change-Id: Id94d7ced503ad0b1378643e0c13c2a8b65ad2327
> Bug: chromium:1056170
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135729
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67008}

TBR=ulan@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,bikineev@chromium.org,omerkatz@chromium.org

Change-Id: I71bf7a9b7f54f0ec8d64b1b1781699adb0feb138
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137401Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67009}

With this change we support allocation of objects and keeping them alive via
conservative stack scan.

Change-Id: Id94d7ced503ad0b1378643e0c13c2a8b65ad2327
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135729Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67008}

This reverts commit c9ce1b56.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20isolates/8923

Original change's description:
> Reland "[wasm] Deduplicate wasm scripts"
> 
> This is a reland of 6ebccbd1
> 
> Original change's description:
> > [wasm] Deduplicate wasm scripts
> > 
> > R=clemensb@chromium.org
> > 
> > Bug: v8:6847
> > Change-Id: I4509a7011a0d32f5bbd2eabf3d2ee6ef5304263d
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2124320
> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#66981}
> 
> Bug: v8:6847
> Change-Id: I74f51b9b15df74de800fbbf031515d26aaa70dbc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135735
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67006}

TBR=ulan@chromium.org,clemensb@chromium.org,bmeurer@chromium.org,thibaudm@chromium.org

Change-Id: Ie9da956519673b85262ba0cbcc80a946624d8c45
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6847
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135634Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67007}

This is a reland of 6ebccbd1

Original change's description:
> [wasm] Deduplicate wasm scripts
> 
> R=clemensb@chromium.org
> 
> Bug: v8:6847
> Change-Id: I4509a7011a0d32f5bbd2eabf3d2ee6ef5304263d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2124320
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#66981}

Bug: v8:6847
Change-Id: I74f51b9b15df74de800fbbf031515d26aaa70dbc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135735Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67006}

Change-Id: I31aabfe9bdaf02da088620920bbe1e85a9f1859a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135630
Auto-Submit: Marja Hölttä <marja@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67005}

Adds the PersistentHandles class, which serves as a container for
handles that can be passed back and forth between threads. Allocation
and deallocation of this class is thread-safe and the isolate tracks
all PersistentHandles containers.

Design doc: https://docs.google.com/document/d/17yKs-6apE2rGEag7tDsoyeRxg99c1dXyXQ2MfHe65tY/edit?usp=sharing

Bug: v8:10315
Change-Id: I4b9c958c9a57d755ca68862197501f75274670fb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2128058
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67004}

Bug: v8:9909
Change-Id: I954c2d48d0116e0f1fcfcb801671e320f8e4fee6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2134420Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#67003}

This is a reland of 77b24c06

Original change's description:
> [class] Ship private methods and accessors
> 
> Turns --harmony-private-methods on by default.
> 
> Intent to ship: https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/HLpO-HC8aKc/TT32fUNPBAAJ
> ChromeStatus page: https://www.chromestatus.com/feature/5700509656678400
> 
> Bug: v8:8330
> Change-Id: I0d9b21cddd5418be8e7059c24fa05ab98de667b9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2110890
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Joyee Cheung <joyee@igalia.com>
> Cr-Commit-Position: refs/heads/master@{#66933}

Bug: v8:8330
Change-Id: I165e54982b642757b2e9ed9eb42a051ea928703b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2130451Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/master@{#67002}

Older gcc versions don't support constexpr source location builtins.

Bug: chromium:1056170
Change-Id: I3ef26e62395b1d86f435fb433b429d62a47fa8c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135737Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67001}

This reverts commit 7d955faa.

Reason for revert: Bad change, modified wrong test file https://ci.chromium.org/p/v8/builders/ci/V8%20Linux/36416

Original change's description:
> [wasm-simd][x64][ia32] Do not overwrite input register
> 
> We are ovewriting input register (contains the shift) when we are
> masking it, instead, move to a temporary,then mask it.
> 
> Bug: chromium:1065599
> Change-Id: Iab72b94581239447e444746681387350b576e24a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2125941
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#66997}

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

Change-Id: I50c57906d6eb49758584b477c971179ea3c6e5d3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1065599
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2134655Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67000}

This reverts commit df204288.

Reason for revert: Broke noavx https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20debug/31698

Original change's description:
> [wasm-simd][x64] Cleanup unnecessary CpuFeatureScope
> 
> There are a couple more left in some i64x2 ops, but those are not in the
> proposal, so I've left them as it is.
> 
> Bug: v8:9561
> Change-Id: I3f6a4113c8054229eb6532d83ff16174a3208418
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2128849
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#66990}

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

Change-Id: Ib42dbf70ab8ee97ed1d2f809ea305c22213ae960
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9561
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2134653Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66999}

Bug: v8:8179
Change-Id: I443024e663ebece4465cb58687b49a37624c6bbf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2129274
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66998}

We are ovewriting input register (contains the shift) when we are
masking it, instead, move to a temporary,then mask it.

Bug: chromium:1065599
Change-Id: Iab72b94581239447e444746681387350b576e24a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2125941
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66997}

A WeakCell's unregister_token and holdings are passed in by the user,
and so should be JSAny. A FinalizationRegistry's callback function must
always be Callable.

Bug: v8:8179
Change-Id: I8e447ce4bfeba712594fc9a7c9923ce718adcd62
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2129273Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66996}

Bug: v8:8179
Change-Id: Ic8ae1fcbfaf7d71a4f9924266670fbf1c24cd63e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2129246Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66995}

Effect-control-linearizer will update a basic block to connect it
directly to the end node if it has an Unreachable node. Usually the
block would already have been connected directly to end (via a Throw
node) already, however in some cases it can be connected indirectly
(via a branch, where both end in a throw node).

If this happens, and the Effect-control-linearizer is maintaining the
schedule (e.g., for TurboProp), it will cause the end block to have
unreachable predecessor blocks, which can cause issues with the
register allocator.

To fix this, have the BasicBlockUpdater remove all successor blocks
from the schedule, when they become Unreachable. Also add some tests
to cover this in effect-control-linearizer-unittests.

BUG=v8:10332,v8:9684

Change-Id: Ibce140e6d1f61751a86247e6f8c36075723a1e55
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2120537
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66994}