tools/callstats-from-telemetry.sh converts multiple telemetry results
form benchmark runs into a single callstats-compatible json file.

Change-Id: I775109d4274c2cf8d87797b73695497d82d59d4a
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276043Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68630}

Modify the output of --trace-deopt to specify which version of the
caller's pc (signed with PAC or unsigned) is shown when CFI is enabled.

Change-Id: I77006839997a5f50d37d65facbba24d8a86a1509
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274867
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68629}

This refactors the FastApiCall reduction to be more explicit about
which inputs of the JSCall node are used.

Bug: v8:8888
Change-Id: Ia950bbfcf359ec4ae232b8dd21adafb0b4a05177
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276032
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68628}

Move inlined methods to .h files accordingly, follwing style guide
rule:
https://google.github.io/styleguide/cppguide.html#Self_contained_Headers

Bug: chromium:1056170
Change-Id: Ia6c4f82bd4352d507eece36e540ad0d318e56920
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273858Reviewed-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@{#68627}

The typed version takes Effect/Control arguments instead of untyped
Node* arguments.

Bug: v8:8888
Change-Id: Ia4b9895256ab9ea2a22f9e590490280d7536eac7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274609
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68626}

Port ef1d6a3b
https://crrev.com/c/2227257

Change-Id: Id829db611fdfd475462efec2aa0ab6f94d3ddce3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2251680
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68625}

Rolling v8/base/trace_event/common: https://chromium.googlesource.com/chromium/src/base/trace_event/common/+log/ef35868..23ef533

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/3a5fbeb..29bc352

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/1ed9957..6099f10

Rolling v8/third_party/aemu-linux-x64: I_sHBnheTA3cmFAjzkyUAhsmhpWXu82YLidstkjgsvIC..OQ8c-S6dNd0LdVeElhAYBgsHeiiM4xyJ8E6hy3pRIUMC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/de622ae..3f5d1ca

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/d9391fd..fdd2cd6

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/6849229..b49c12a

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

Change-Id: Ibab2c61210b9142ddd269b48aadc5a39c6996ede
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2275116Reviewed-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@{#68624}

Whether or not a store requires a write barrier depends on several
invariants within V8. Some flags can break these invariants. In
particular, it's not possible to use enable_single_generation with
incremental marking because marking barriers are omitted in places where
it is assumed an object will be allocated in the young generation.

This CL introduces a new flag, enable_unconditional_write_barriers,
which allows us to specify that full write barriers should always
happens. The main purpose of this is to support single generation GC
with incremental marking, but it can also aid as a debugging tool to
check for missed write barriers.

Bug: v8:10614
Change-Id: I3ab640436bcefc118c9c5c34765421cb9ea4896f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270546Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Jake Hughes <jakehughes@google.com>
Cr-Commit-Position: refs/heads/master@{#68623}

Release operation uses more expensive operations on some architectures.

Change-Id: Iab84d92c84c791d429b6635641daadb2d608f791
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276039Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68622}

Also should address minor performance regressions for instance types
that should (and used to) use map compare rather than instance_type
comparison.

In the process, convert a bunch of IsXXX methods from the CSA into
exported Torque methods that call through to the Cast<> to ensure
there is only a single implementation of the type checkers. Also clean
up and remove duplicate/redundant code and unused Torque imports.

Bug: v8:7793, chromium:1098481
Change-Id: I3cd5146d913bb75bab4f73415b1b94bc30924725
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270545
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68621}

Bug: v8:7748
Change-Id: I6bbb73ceb397b102783ecfcc553264d83e926df2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273126
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68620}

Prototype f64x2.nearest on ARM for both ARM v7 and ARM v8. ARM v8 has
support for vrintn, and for ARM v7 we fallback to runtime.

Since ARM v8 uses vrintn, which is the same instruction used for
F64RoundTiesEven (scalar), wasm-compiler reuses the Float64RoundTiesEven
check.

Bug: v8:10553
Change-Id: Ia4c4245cac87c132331f54e81dad323fc3fb9f6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2268358Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68619}

e.g. the following is now valid Torque code:

  macro TestA(implicit c: Context)() {}

  macro TestB(): bool {
    return TestA();
  }

This is handy for more flexible usage of generics that may or may not
use implicit parameters deep inside their specializations.

Note that this change doesn't change the fundamental rigor (or lack
thereof) around checking the usage of implicit parameters, which
already do not require '_' before their parameter identifier if
unused. It just silences errors in cases where a call site doesn't
implicitly pass a parameter that ultimately doesn't have a use site
and adds meaningful error messages in the case that it does.

Bug: v8:7793
Change-Id: I559d06c0864a7e79fe52bee5a9a7af9941889748
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274127
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68618}

Often at the d8 prompt, you'd like to explore some pointer found
from calls to %DebugPrint(). %DebugPrintPtr() takes a pointer and
attempts to print it as an object.

Change-Id: Ibc3368136a2ed92f400b52dbf2855f3c7d80d887
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276046Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68617}

This is likely the major change of the series, as Call nodes are the
focus of call reducer (and to a lesser extent other phases like
inlining).

This CL essentially adds the new input to Call nodes, and updates the
rest of the pipeline. As a (fairly large) drive-by, I also introduce
the JSCallNode wrapper class and apply it in call reducer.

This change, although large, will hopefully make future refactorings
*much* easier, since it is now clear where certain assumptions about
Call node layout are made.

Bug: v8:8888
Change-Id: Ia15fe0ba459b6034863a5815a4e4662cee41fc83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2264353
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68616}

Bug: v8:7748
Change-Id: Id88f9a9334160687af5f6234bc1cb30472949684
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274131
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68615}

OldGenerationAllocationCounter() needs to be invoked in safepoint,
otherwise invocation races with background threads incrementing the
counter.

First landed in https://crrev.com/c/2235544 and relanded in https://crrev.com/c/2259854 because of regressions. This CL also invokes UpdateNewSpaceAllocationCounter() in the safepoint.

Bug: v8:10315
Change-Id: I6104bed0aad848250feecfe51d6d849b184a8842
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2260560
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68614}

This patch does not include support for RTTs for i31ref yet.

Bug: v8:7748
Change-Id: Ifbeb8e305c2d0a57e4d5d6be761d046e330e0da1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273135
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68613}

Bug: v8:10658
Change-Id: Iccc20acea0b506e8acffca944d19b70af011ee3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276035
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68612}

- Support loading combined trace json files from telemetry
- Add "Blink RCS" source to separate blink details
- Add prompt for naming newly loaded files
- Add Group.addsToTotal variable for easier unclassified tracking

Drive-by-fix: use let instead of var

Change-Id: I5e471d8d1462987d1da98c2229090215c1fc6179
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273857
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68611}

R=clemensb@chromium.org

Bug: v8:10108
Change-Id: Ibfcef171e1a34153ea925aa657e66e7720c416ce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274130
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68610}

Emit live bytes and evacuation mode as text for evacuated pages. Also
emit the number of evacuated pages.

Change-Id: Iadf1ac60f4fd35774f879277efb0b83fac39dd63
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273136Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68609}

Mostly gc-related flags didn't flush out any bugs yet, but often reduce
test performance and lead to timeouts.

No-Try: true
Bug: chromium:1044942
Change-Id: I2a7b55f78bfa3d597de1a5674658829e0812d01a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273861Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68608}

Previously we ran baseline (e.g. ignition) and one random secondary
comparison configuration (e.g. turbofan) from the list of experiments.
But Clusterfuzz imposes limitations on the total amount of fuzz tests.
Therefore this change enables more throughput by always running the
default configuration (ignition_turbofan like V8 is shipped)
additionally to the baseline and the secondary configuration.

This, hence, doubles the number of comparisons we run, with less than
50% additional runtime, since the slow baseline configuration is only
run once.

The experiments table is updated accordingly. Explicit entries running
ignition_turbofan are removed (as it always runs now), instead some
of the other configurations are increased in their relative
percentage. We also get a few new configurations that didn't run
before (e.g. forcing the slow path on x86).

No-Try: true
Bug: chromium:1100114
Change-Id: I69b2a41d78c06e556b309743a2aace1053c22f91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270307Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68607}

This is a reland of 32b685fa

There was an unrelated breakage. See https://crbug.com/v8/10655#c10

Original change's description:
> infra: Set gcc builders not to use Goma
>
> NOTRY=true
> NOTREECHECKS=true
>
> Bug: chromium:1100009
> Change-Id: I67deb383d41e6609d5c3215e02422c8b1c16f8f4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2272738
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68593}

TBR=liviurau@chromium.org
NOTREECHECKS=true

Bug: chromium:1100009
Change-Id: If59371bbe474383156effc6dfc92d848c304a416
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2276031Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68606}

Indicium is a new tool that integrates all our Map and IC processing
tools into one tool.

This CL does not attempt to cleanly integrate the Map Processor
and IC explorer, but provides an in initial starting point for further
integration work.

Bug: v8:10644
Change-Id: I753c116fd409c8c07613bf15f22e14aa1e8c8a0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2259935
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68605}

Bug: chromium:1098842
Change-Id: Id29edfda99f49a167a03b5158396a07559c75907
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270231Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68604}

It seems that the mix of atomic and non-atomic updates to the same
memory location is not working correctly. One fix is changing all memory
updates to be atomic. Another fix is removing the non-atomic access that
happens while the workers are already running (using atomic accesses).
This CL implements the latter.

R=ahaas@chromium.org

Bug: v8:10647, v8:10650
Change-Id: I84b4f3f442b6be3c4ea6e51962a523f443f5e43b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273133Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68603}

Change-Id: I04902e3f91dae6083b3de7630fd91d49ad805a2a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2272565
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68602}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d83f4a5..3a5fbeb

Rolling v8/third_party/aemu-linux-x64: FN-ckx_oV2JTqPuW3iMG50qdN5FgGqm-4XP9AkoLwPUC..I_sHBnheTA3cmFAjzkyUAhsmhpWXu82YLidstkjgsvIC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/8353ff9..de622ae

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/6e6c67d..d9391fd

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/2479626..6849229

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

Change-Id: I9e7c14e44cf7dc89f4a410a498af0ee306d9f0f2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274519Reviewed-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@{#68601}

On mips platform, call operations may be followed by trampolines, which
leading to wrong information of the call instr's location in safepoint.
This CL fix it by adding a last_call_pc_ to record the location.

Besides, this CL also fix a bind operation in CheckTrampolinePool, which
may try to use trampoline before it's emission.

Change-Id: Ic0cbdb93afffa60a7389ee8177c381087fcaf52e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2095645
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68600}

This reverts commit fa9c6e17.

Reason for revert: Didn't fix the build.

Original change's description:
> Revert "Add support for __declspec(nocf)."
>
> This reverts commit 0c58583b.
>
> Reason for revert: https://crbug.com/v8/10656 and failures in https://ci.chromium.org/p/v8/builders/ci/V8%20Win64%20-%20msvc/14135
>
> Original change's description:
> > Add support for __declspec(nocf).
> >
> > __declspec(nocf) syntax was added in https://reviews.llvm.org/D72167
> > and annotates that checks should not be added on indirect calls
> > within that function.
> >
> > BUG=chromium:584575
> >
> > Change-Id: Ib2e2d2a827186a9c1fd3de15356b2b04d6a69e49
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270707
> > Reviewed-by: Clemens Backes <clemensb@chromium.org>
> > Commit-Queue: Will Harris <wfh@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#68590}
>
> TBR=wfh@chromium.org,clemensb@chromium.org
>
> Change-Id: Icec64feb44715a65e905a93e0c47fb37d4f11a09
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: chromium:584575
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274736
> Reviewed-by: Zhi An Ng <zhin@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68598}

TBR=wfh@chromium.org,clemensb@chromium.org,zhin@chromium.org

Bug: chromium:584575
Change-Id: I0e305374c8325d87e4b18963da4e90802f136187
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274356
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68599}

This reverts commit 0c58583b.

Reason for revert: https://crbug.com/v8/10656 and failures in https://ci.chromium.org/p/v8/builders/ci/V8%20Win64%20-%20msvc/14135

Original change's description:
> Add support for __declspec(nocf).
> 
> __declspec(nocf) syntax was added in https://reviews.llvm.org/D72167
> and annotates that checks should not be added on indirect calls
> within that function.
> 
> BUG=chromium:584575
> 
> Change-Id: Ib2e2d2a827186a9c1fd3de15356b2b04d6a69e49
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270707
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Will Harris <wfh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68590}

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

Change-Id: Icec64feb44715a65e905a93e0c47fb37d4f11a09
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:584575
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274736Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68598}

Change-Id: Iaa0075ea16c289a369b354f2f44b3d1161f2faac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2273581Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#68597}

TBR=santa
NOTREECHECKS=true

Change-Id: I629255ea3f65134bec8a1c7428b36426960aa311
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274120
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68596}

This reverts commit 32b685fa.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20vtunejit/36094

Original change's description:
> infra: Set gcc builders not to use Goma
> 
> NOTRY=true
> NOTREECHECKS=true
> 
> Bug: chromium:1100009
> Change-Id: I67deb383d41e6609d5c3215e02422c8b1c16f8f4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2272738
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68593}

TBR=sque@chromium.org,machenbach@chromium.org

Change-Id: Ia43f1ed69859d8face0adeefc820a06bf2e04c82
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1100009
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274086Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68595}

When filling stack slots, the start offset can be too large to fit into
the immediate of a str instruction (which is used to handle remainders
after stp). For example, a function with 32 i64 params will require 256
bytes reserved for the params, so the offset starts at 256 + 16
(instance) = 272. This does not fit into a int9, so we hit an
UNREACHABLE case when emitting str.

The fix here checks that start can fit in an unscaled immediate, and if
it doesn't fallback to the general case. We could use the Str
from macro-asesmbler, but that uses another instruction, so we are not
saving anything.

A check for IsImmLSUnscaled(-start-12) is sufficient because 12 is the
largest possible value for remainder. So if -start-12 fits, everything
else will fit.

Bug: v8:10645
Change-Id: I1c415499ada3a807d5f3889f091150bfefdf471d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2267369
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68594}

NOTRY=true
NOTREECHECKS=true

Bug: chromium:1100009
Change-Id: I67deb383d41e6609d5c3215e02422c8b1c16f8f4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2272738
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68593}

Prototype f64x2.trunc on ARM for both ARM v7 and ARM v8. ARM v8 has
support for vrintz, and for ARM v7 we fallback to runtime.

Since ARM v8 uses vrintz, which is the same instruction used for F64
trunc (scalar), wasm-compiler reuses the Float64RoundTruncate check.

Bug: v8:10553
Change-Id: I074d5b4172809915d4b37c59bd3b0dcbf9a45e1d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2268357
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68592}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2dc7c7a..d83f4a5

Rolling v8/third_party/aemu-linux-x64: UoYLOT0X6577j70eB9nPqYQs9Z3Nh5lA4I-pRtTchO0C..FN-ckx_oV2JTqPuW3iMG50qdN5FgGqm-4XP9AkoLwPUC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/95c1f42..8353ff9

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/35c6274..6e6c67d

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/02daed1..8603eee

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/42b285f..2479626

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

Change-Id: I3bd5df9f3c05eee0f135b0ee49708024edddc812
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2269870
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#68591}