BUG=chromium:1180335

Change-Id: If734282bb58b4c2f5832082319f9f58962552049
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712746
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72944}

Since gtest_prod.h is in a test-only build target, that target cannot be
a dependency of non-test build targets. To prevent gn check errors
warning about, this add "// nogncheck" to any includes.

Bug: v8:7330
Change-Id: I40de6983e30234de2a778780a9ca839aee0bc8ee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712747
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72943}

This moves all tests that construct a wasm module (and load
wasm-module-builder.js) from test/regress to the test/regress/wasm
directory. This will make it easier to skip them all in the
v8_enable_webassembly=false configuration.

R=ahaas@chromium.org

Bug: v8:11238
Change-Id: Ib22b0fb40a58f213182e68b78b34041651c436d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712243Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72942}

The experimental engine struggles to compile this large pattern.

Change-Id: I0abd5c7ed9f6f62b1c18b5c3dc1cb6a25e130c53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712754
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72941}

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 add the lookup and iteration functions as well as the helpers
needed for that.

Bug: v8:11388
Change-Id: Ib684f32d1623868f9caf79c48fc61478d6f6ee4b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2695391Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Frank Emrich <emrich@google.com>
Cr-Commit-Position: refs/heads/master@{#72940}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d6803e2..ac7b73c

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/fe293b0..80d14c9

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/d999d54..a2cc4f8

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/011cc41..e71d028

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/5e0cf72..1e315c5

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/dc4ceac..e05b663

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/bf44340..348acca

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/6cf138c..bf8c8f3

TBR=v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I9450ca401a16b96ffbeac0e08e39eeacd72d6f36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713575Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#72939}

Port: fd244de2

Bug: v8:11416
Change-Id: I8f2840337d77ddfa430f57737360fb0b679f2f33
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713574
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#72938}

This reverts commit 9da4e363.

Reason for revert: Fuzzers revealed that Liftoff doesn't use the CallDescriptor when pushing arguments, breaking linkage.

tbr=ahaas@chromium.org,neis@chromium.org,jgruber@chromium.org

Original change's description:
> Reland "Reland "Reland "[compiler][wasm] Align Frame slots to value size"""
>
> This is a reland of 352b9ecb
>
> The test/fix CL has been merged in, as the fixes to return slot
> accounting are needed to fix Arm64 issues turned up by the fuzzers:
>
> https://chromium-review.googlesource.com/c/v8/v8/+/2644139
>
> Original change's description:
> > Reland "Reland "[compiler][wasm] Align Frame slots to value size""
> >
> > This is a reland of 1694925c
> >
> > Minor fix to linkage for constexpr.
> >
> > TBR=ahaas@chromium.org,neis@chromium.org
> >
> > Original change's description:
> > > Reland "[compiler][wasm] Align Frame slots to value size"
> > >
> > > This is a reland of cddaf66c
> > >
> > > Original change's description:
> > > > [compiler][wasm] Align Frame slots to value size
> > > >
> > > > - Adds an AlignedSlotAllocator class and tests, to unify slot
> > > >   allocation. This attempts to use alignment holes for smaller
> > > >   values.
> > > > - Reworks Frame to use the new allocator for stack slots.
> > > > - Reworks LinkageAllocator to use the new allocator for stack
> > > >   slots and for ARMv7 FP register aliasing.
> > > > - Fixes the RegisterAllocator to align spill slots.
> > > > - Fixes InstructionSelector to align spill slots.
> > > >
> > > > Bug: v8:9198
> > > >
> > > > Change-Id: Ida148db428be89ef95de748ec5fc0e7b0358f523
> > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512840
> > > > Commit-Queue: Bill Budge <bbudge@chromium.org>
> > > > Reviewed-by: Georg Neis <neis@chromium.org>
> > > > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > > > Cr-Commit-Position: refs/heads/master@{#71644}
> > >
> > > Bug: v8:9198
> > > Change-Id: Ib91fa6746370c38496706341e12d05c7bf999389
> > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2633390
> > > Commit-Queue: Bill Budge <bbudge@chromium.org>
> > > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > > Reviewed-by: Georg Neis <neis@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#72195}
> >
> > Bug: v8:9198
> > Change-Id: I91e02b823af8ec925dacf075388fb22e3eeb3384
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2640890
> > Reviewed-by: Bill Budge <bbudge@chromium.org>
> > Commit-Queue: Bill Budge <bbudge@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#72209}
>
> Bug: v8:9198
> Change-Id: I8258f87463f66417c7028b9a1fed4b9b6d82a3be
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2669892
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72506}

Bug: v8:9198
Change-Id: I7f344e4d018ce3c02333b0b08efeecdd8cddf082
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713207Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72937}

Load lanes require that dst == src1 when AVX is not supported, add that
constraint to the instruction selector. For Liftoff, we change the macro
defintions of Movlps and Movhps to do the move if dst != src1.

Bug: v8:10975
Change-Id: Ic4f499845f0728db250ea23b1b053e0a9fbe99b5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2708825Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72936}

Bug: v8:11086
Change-Id: Id7ec472d5311c3a1e4e54d9df65fee9c87ae6ec7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707777Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72935}

This reverts commit 0818d138.

Reason for revert: Rolling back to previous greedy slot allocator.

tbr=ahaas@chromium.org

Original change's description:
> [compiler][wasm] Fix Wasm linkage
>
> - Fixes a problem when constructing Wasm CallDescriptors, where the
>   allocation tries to treat parameters and returns as if they are in the
>   same frame. This doesn't work when slots may be aligned in their
>   frame. Instead, allocate parameters and returns separately and offset
>   return slots by the number of parameter slots.
> - Adds argument slot padding in the CallDescriptor lowering case, to
>   prepare for when 32 bit targets align stack frames and require
>   padding.
> - Adds a regression test.
>
> Bug: chromium:1174500
> Change-Id: I60d96a94b171a0d27ff61cbab35623976b0c6da8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2683024
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72588}

Bug: chromium:1174500
Change-Id: I1d1c389acde43bd56e6d2a27e1a3eb8ea4d6073c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713206
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@{#72934}

This is essentially a revert of 3 commits:

- a1d39bba
- 5a0938e5
- 74362ae3

with merge conflicts fixed.

These instructions were not merged into the SIMD proposal.

Bug: v8:11297
Change-Id: Ifffe7c61cae10fadc345d0faa1b0ba45ce74e946
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704950Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72933}

Bug: v8:11471
Change-Id: Ie09f1f8e7b52b22e232bf382381c40037cf00986
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2708755Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72932}

This reverts commit 8cf4eec7.

Reason for revert: Rolling back to previous greedy slot allocator.

tbr=neis@chromium.org,jgruber@chromium.org

Original change's description:
> [codegen][frames] Generalize argument padding slot code
>
> - Removes kPadArguments boolean.
> - Changes ShouldPadArguments to ArgumentPaddingSlots to reflect
>   that on some architectures more than 1 padding slot may be needed.
> - Adds AddArgumentPaddingSlots and ShouldPadArguments convenience
>   functions.
>
> Bug: v8:9198
>
> Change-Id: Iba87518e071a75fb951b490d3f75a87ca715cc23
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2679109
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72605}

Bug: v8:9198
Change-Id: Ie93d32d4b93c67840e4792acb017f28a826bd030
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713205
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@{#72931}

This reverts commit b18bc221.

Reason for revert: Rolling back to previous greedy slot allocator.

tbr=jgruber@chromium.org

Original change's description:
> [compiler][linkage] No allocation of slots after aligning a frame
>
> - Adds DCHECKs to make sure no stack slots are allocated after
>   aligning a frame.
> - Changes Arm64 CodeGenerator::FinishFrame to align the frame after
>   allocating callee-saved registers, and relaxes the constraints on
>   the number of callee-saved registers.
>
> Bug: v8:9198
> Change-Id: Iacb0518b57fa3ea2ff801eda69719f4c32733850
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2694104
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72781}

Bug: v8:9198
Change-Id: I53f415b7b0f73b57db24859d1199c6a44f911035
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713204
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@{#72930}

This reverts commit 0ef2eea7.

Reason for revert: broke noavx https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20debug/34035/overview

Original change's description:
> [wasm-simd][ia32] Optimize some signed integer widening sequences
>
> Optimize ia32 code sequences. This is the same sequences as x64, which
> have been optimized based on supported extensions.
>
> Bug: v8:11464
> Change-Id: I10396a928a431cdd2de9b22bb8a395bc0adb4694
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704897
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72926}

Bug: v8:11464
Change-Id: Ibeaf35b5f6aa75d10e24f1fb57843dbc0791d37a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713208
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72929}

Port 8136e399

Original Commit Message:

    Extract code sequence into macro-assembler for reuse between Liftoff and
    TurboFan.

    Small tweaks to macro-assembler functions  Pmaddwd and Pmaddubsw to move
    src1 to dst on SSE when src != dst. TurboFan codegen won't be affected
    by this since it sets the right restrictions in instruction-selector.

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

Change-Id: Idaff4944dbb1ec5e6d7e798b6255a90744155006
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713842Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72928}

Original change on arm: https://crrev.com/c/2463222

Change-Id: Ifb99b4dd1825814865ef2647ba3df3b3ab343cc4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712394Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72927}

Optimize ia32 code sequences. This is the same sequences as x64, which
have been optimized based on supported extensions.

Bug: v8:11464
Change-Id: I10396a928a431cdd2de9b22bb8a395bc0adb4694
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704897Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72926}

Extract code sequence into macro-assembler for reuse between Liftoff and
TurboFan.

Similar to x64, there is a bit of register-aliasing checking due to the
rather strict requirements for the code sequence depending on the
CpuFetures that are supported.

Bug: v8:11415
Change-Id: I3f855da25493941d158383020fbcafee8d18095f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698066
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72925}

Extract code sequence into macro-assembler for reuse between Liftoff and
TurboFan.

Small tweaks to macro-assembler functions  Pmaddwd and Pmaddubsw to move
src1 to dst on SSE when src != dst. TurboFan codegen won't be affected
by this since it sets the right restrictions in instruction-selector.

Bug: v8:11086
Change-Id: I6c206dec332c8195a6a4d419d11a28e7058c905a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707253Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72924}

Bug: v8:11429
Change-Id: I98b65613dc05f593644af45388b1f2c2a7df34a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712567
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72923}

These appear to be consistent with the pow implementation in ieee754.cc.

Bug: v8:11371
Change-Id: I1b695facb5ba7dc1a7bd28914bdb535966e080c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710432
Auto-Submit: Georg Neis <neis@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72922}

Change-Id: I838bf9f9c0d83fc3cb96f7fb47b0fba3498680c1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2709950Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72921}

This is a partial reland of https://crrev.com/c/v8/v8/+/2601880 .

This change improves readability and helps prepare for when ScopeInfo
will not be convertible to FixedArrayBase.

Change-Id: I8de453c2b72ced51e98161e3d9e6426cd6ff7267
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707250Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#72920}

Now that we create a full frame for interrupts during the baseline
out-of-line prologue, we shouldn't consider the out-of-line prologue
builtin's frames as BASELINE, but rather have the frame above be the
baseline frame.

Change-Id: Icf96a6be4cf4bff0e482964bece12d397a26c268
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712789
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72919}

Port 1c507667

Original Commit Message:

    There is no need for write barriers if the stored value is known to be a
    Smi.

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

Change-Id: I2b79511b7f2789e6fc95ae5cb349b0f2288822fc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712787Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72918}

Fixes compilation with msvc 2019 toolchain.

See: https://github.com/nodejs/node/pull/37330#issuecomment-783000812
Change-Id: I3b658d9ef49889c0a0467a1146e8d16b50fca65d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2711152Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72917}

Bug: chromium:1126457
Change-Id: I3faa690d8b5d1fefcba7b75c38fb5d2c8570c3aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707165Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72916}

Port a3776a63

Original Commit Message:

    Backends do not care about the concrete type, they only need to know the
    "kind" (e.g. "ref" or "i32").
    In order to prepare Liftoff to use the value kind instead of the
    value type for all stored data, this CL moves the kind out of the
    ValueType and makes it a top-level enum.

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

Change-Id: Ia4111941313037aa1a77f2a0a1536d492ae9dc0b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712392Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72915}

Bug: v8:11429
Change-Id: I626a30d44eca5e2b636d528a9fe0824b8608f4fc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712568
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72914}

This problem was found by Mathieu Schroeter <gamesover.ch@gmail.com>, who
also suggested this fix. Kudos!

R=cbruni@chromium.org

Change-Id: I8865d1ea6dea29514c69296145cf72958ea8acb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712566
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Yang Guo <yangguo@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72913}

Also add v8_config_headers dependency to cctest_headers. This reduces
the number of gn check failures from 194 to 178.

Bug: v8:7330
Change-Id: I6453b9789503c9d8ca3ed6bbe94bce3e2a69653f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712564
Auto-Submit: Dan Elphick <delphick@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72912}

This method used to be defined on Object and handled Strings and
JSObjects; but only the object hierarchy rooted at JSObject has
'elements', and Strings are handled slightly differently. Thus it
makes sense to split up into

 JSObject::GetOwnConstantElement
 String::GetCharAsString

This way, we can also separate future work on making JSObjects and
Strings never-serialized.

Bug: v8:7790
Change-Id: I8e0f142fbd9cbf8e8abe1e9a189bcd948c2f1fa8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704080
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@{#72911}

Bug: v8:11429
Change-Id: Ib85f759a763640a55e5e6dcaf350b3ed1629bbf1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712563
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72910}

Using StackFrame::MANUAL was a bit of a hack to avoid frame markers to
be pushed, but manual in FrameScope means Enter/LeaveFrame aren't
called at all.  This decouples those things.

Bug: v8:11429
Change-Id: Ie1603bb3c6858f0b97a75e4bb0b9bd1244de6cce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707205
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72909}

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/+/2702331Reviewed-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}

Besides, fix i64x2 widen i32x4 instructions in mips32.

Change-Id: I85e3f8f4ab16c268a5b17189f67c78ef45762e39
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2711737Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#72907}

Earlier we used the same interrupt budget always and waited for higher
number of ticks when tiering up from Turboprop to TurboFan. On some of
the real world pages this adds a reasonable overhead for processing
these interrupts. This cl sets the interrupt budget to a higher value so
there are fewer interrupts. This cl:
1. Sets the interrupt budget on feedback cell to
FLAG_interrupt_budget * scale factor when we install optimized code.
2. Resets the budget to FLAG_interrupt_budget when there is a
deoptimization.
3. Updates the runtime profiler to remove the scaling of number of ticks
needed for optimization when tiering up from TP to TF.

On sheets benchmark, we spend 40-50ms when servicing interrupts from
Turboprop code. This change brings it down to ~7ms. We also see
improvements on other pages.


Bug: v8:9684
Change-Id: Ia3e5e998d1fff44f2e08a240a8769b7ebe794da2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2696661
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72906}

If webassembly is disabled via a gn arg, we will not be able to enable
it via command-line switch. Hence make this flag read-only in that
configuration.

R=ecmziegler@chromium.org

Bug: v8:11238
Change-Id: Ib93a55f74d4f018477f110b8b52aa9b645e86553
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710426Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72905}