R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1131853002

Cr-Commit-Position: refs/heads/master@{#28330}

Rolling v8/tools/clang to 5bab78c6ced45a71a8e095a09697ca80492e57e1

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1136043002

Cr-Commit-Position: refs/heads/master@{#28329}

Rolling v8/tools/clang to 72b418e60c4529a7b160cead01b099de6ea8445f

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1132473006

Cr-Commit-Position: refs/heads/master@{#28328}

BUG=chromium:485410
LOG=y
R=mvstanton@chromium.org,danno@chromium.org

Review URL: https://codereview.chromium.org/1132113004

Cr-Commit-Position: refs/heads/master@{#28327}

BUG=chromium:486003
LOG=n

Review URL: https://codereview.chromium.org/1136783002

Cr-Commit-Position: refs/heads/master@{#28326}

This is the first step of converting TypedArrays to the proper
proto chain. There is one copy for each of the Harmony TypedArray
methods, rather than a version for each TypedArray type. This
form prevents accidentally baking in knowledge about a particular
array type into the method definition.

R=adamk@chromium.org, arv@chromium.org, caitpotter88@gmail.com, dslomov@chromium.org, jochen@chromium.org
BUG=v8:4085
LOG=Y

Review URL: https://codereview.chromium.org/1126313003

Cr-Commit-Position: refs/heads/master@{#28325}

Cr-Commit-Position: refs/heads/master@{#28324}

R=jarin@chromium.org
LOG=Y
BUG=chromium:485908

Review URL: https://codereview.chromium.org/1138463004

Cr-Commit-Position: refs/heads/master@{#28323}

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1134743002

Cr-Commit-Position: refs/heads/master@{#28322}

This avoids DCHECK failures when passing 0 as the at_least_space_for
argument to HashTableBase::New (allowing converting code from non-serialized
to serialized without changing callsites).

Review URL: https://codereview.chromium.org/1134573002

Cr-Commit-Position: refs/heads/master@{#28321}

BUG=

Review URL: https://codereview.chromium.org/1128323003

Cr-Commit-Position: refs/heads/master@{#28320}

BUG=v8:3996
R=bmeurer@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1126413005

Cr-Commit-Position: refs/heads/master@{#28319}

Select sbfx for ((x << k) >> k) in ARM64 instruction selector, and similarly
for ubfx. This is a more generic version of the previous sxtb/h selector.

BUG=

Review URL: https://codereview.chromium.org/1135543002

Cr-Commit-Position: refs/heads/master@{#28318}

Exposed to the extras as extrasExports (on the builtins object), on
which they can put things that should be accessible from C++. Exposed
to C++ through the V8 API as v8::Context::GetExtrasExportsObject().

Adding a test (in test-api.cc) required adding a simple extra,
test-extra.js, which we build into the standalone builds.

R=yangguo@chromium.org, jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1128113006

Cr-Commit-Position: refs/heads/master@{#28317}

BUG=chromium:485952
LOG=n
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1124223006

Cr-Commit-Position: refs/heads/master@{#28316}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1124023005

Cr-Commit-Position: refs/heads/master@{#28315}

This should not be done during typed lowering, but should be part of a
dedicated truncation/conversion analysis.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1132773002

Cr-Commit-Position: refs/heads/master@{#28314}

BUG=484544
LOG=n

Review URL: https://codereview.chromium.org/1132763002

Cr-Commit-Position: refs/heads/master@{#28313}

TurboFan compilation was committing dependencies long before the
optimized function made it's way into the optimized code list for
the native context. The problem is that once the code pointer is out
there in dependency arrays, it is eligible for deopt. But the deopt
logic needs the code to be in the optimized code list to fully do it's
job.

BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1136693003

Cr-Commit-Position: refs/heads/master@{#28312}

Instead of making them an extra option that gets passed in and compiled
at the end of the natives file for a given run of js2c, we now make them a
separate run of js2c with a separate natives file output.

This natives file output is then compiled in the bootstrapper. It is not part
of the snapshot (yet), but instead is treated similar to the experimental
natives, just without any of the complexity that comes from tieing the
behavior to flags. We also don't need counterparts to
InitializeExperimentalGlobal and InstallExperimentalNativeFunctions (yet?).

This fixes the issue with https://codereview.chromium.org/1129743003 by making
the dummy file that is generated for snapshots with no extras (or no experimental
features) nonempty.

R=yangguo@chromium.org, jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1130993003

Cr-Commit-Position: refs/heads/master@{#28311}

The Float32Abs and Float64Abs operators are supported by all TurboFan
backends, so we no longer need the flags for them.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1132033002

Cr-Commit-Position: refs/heads/master@{#28310}

Revert of Allow loading holes from holey smi arrays (patchset #2 id:20001 of https://codereview.chromium.org/1134483002/)

Reason for revert:
Shouldn't unconditionally load holes since it tanks performance. I'll change it in a follow-up to only do it if the IC ever saw it happen.

Original issue's description:
> Allow loading holes from holey smi arrays
>
> BUG=
>
> Committed: https://crrev.com/eab5bb5390fab79d063f29398377c6d181963dde
> Cr-Commit-Position: refs/heads/master@{#28298}

TBR=mvstanton@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1131203002

Cr-Commit-Position: refs/heads/master@{#28309}

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1127193003

Cr-Commit-Position: refs/heads/master@{#28308}

Reason for revert:

   original commit was reverted.

   This reverts commit c3529ce5.

   original issues's description:

   > X87: Resolve references to "this" the same way as normal variables
   >
   > port 06a792b7 (r28263).
   >
   > original commit message:
   >
   >  Make the parser handle references to "this" as unresolved variables, so the
   >  same logic as for the rest of function parameters is used for the receiver.
   >  Minor additions to the code generation handle copying the receiver to the
   >  context, along with the rest of the function parameters.
   >
   >  Based on work by Adrian Perez de Castro <aperez@igalia.com>

BUG=

Review URL: https://codereview.chromium.org/1130913005

Cr-Commit-Position: refs/heads/master@{#28307}

Rolling v8/buildtools to b0ede9c89f9d5fbe5387d961ad4c0ec665b6c821

Rolling v8/tools/clang to bda3bddc01a91a513ec245ed1079b31cf5d7ded3

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1124223005

Cr-Commit-Position: refs/heads/master@{#28306}

Revert of PPC: Resolve references to "this" the same way as normal variables (patchset #1 id:1 of https://codereview.chromium.org/1129803003/)

Reason for revert:
Original commit was reverted.

Original issue's description:
> PPC: Resolve references to "this" the same way as normal variables
>
> Port 18619d35
>
> Original commit message:
> Make the parser handle references to "this" as unresolved variables, so the
> same logic as for the rest of function parameters is used for the receiver.
> Minor additions to the code generation handle copying the receiver to the
> context, along with the rest of the function parameters.
>
> Based on work by Adrian Perez de Castro <aperez@igalia.com>.
>
> R=wingo@igalia.com, dstence@us.ibm.com,  michael_dawson@ca.ibm.com
> BUG=
>
> Committed: https://crrev.com/e0ec097b2f49c4c99a2e9490f4b1a09e02abfd4d
> Cr-Commit-Position: refs/heads/master@{#28272}

TBR=dstence@us.ibm.com,michael_dawson@ca.ibm.com,wingo@igalia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1132513005

Cr-Commit-Position: refs/heads/master@{#28305}

R=jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1137473002

Cr-Commit-Position: refs/heads/master@{#28304}

BUG=
TEST=mjsunit/asm/embenchen/lua_binarytrees

Review URL: https://codereview.chromium.org/1127393003

Cr-Commit-Position: refs/heads/master@{#28303}

BUG=chromium:485534
R=yangguo@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1130063004

Cr-Commit-Position: refs/heads/master@{#28302}

BUG=v8:3578
LOG=Y
R=adamk@chromium.org, dslomov@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/1128273002

Cr-Commit-Position: refs/heads/master@{#28301}

While the mutator is active, the idle time handler optimizes for latency by doing only incremental steps and scavenges.

When the mutator becomes inactive, the idle time handler forces few incremental GCs to reclaim memory and then stops until mutator is active again.

BUG=460090
LOG=N

Review URL: https://codereview.chromium.org/1105293004

Cr-Commit-Position: refs/heads/master@{#28300}

Revert of Make V8 extras a separate type of native (patchset #4 id:60001 of https://codereview.chromium.org/1129743003/)

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2745

Original issue's description:
> Make V8 extras a separate type of native
>
> Instead of making them an extra option that gets passed in and compiled
> at the end of the natives file for a given run of js2c, we now make them a
> separate run of js2c with a separate natives file output.
>
> This natives file output is then compiled in the bootstrapper. It is not part
> of the snapshot (yet), but instead is treated similar to the experimental
> natives, just without any of the complexity that comes from tieing the
> behavior to flags. We also don't add counterparts to
> InitializeExperimentalGlobal and InstallExperimentalNativeFunctions, yet.
>
> R=yangguo@chromium.org, jochen@chromium.org
> BUG=
>
> Committed: https://crrev.com/c93aff4ac63ad9ffb6318e750335208de32b7902
> Cr-Commit-Position: refs/heads/master@{#28296}

TBR=jochen@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1131903002

Cr-Commit-Position: refs/heads/master@{#28299}

BUG=

Review URL: https://codereview.chromium.org/1134483002

Cr-Commit-Position: refs/heads/master@{#28298}

BUG=chromium:485472
LOG=NO
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/1128363003

Cr-Commit-Position: refs/heads/master@{#28297}

Instead of making them an extra option that gets passed in and compiled
at the end of the natives file for a given run of js2c, we now make them a
separate run of js2c with a separate natives file output.

This natives file output is then compiled in the bootstrapper. It is not part
of the snapshot (yet), but instead is treated similar to the experimental
natives, just without any of the complexity that comes from tieing the
behavior to flags. We also don't add counterparts to
InitializeExperimentalGlobal and InstallExperimentalNativeFunctions, yet.

R=yangguo@chromium.org, jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1129743003

Cr-Commit-Position: refs/heads/master@{#28296}

Chromium tests were prepared in https://codereview.chromium.org/1118743003/ and https://codereview.chromium.org/1135493002/.
Blink tests in https://codereview.chromium.org/1115193002/

LOG=Y
BUG=chromium:480652
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1127363002

Cr-Commit-Position: refs/heads/master@{#28295}

NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1136443002

Cr-Commit-Position: refs/heads/master@{#28294}

TBR=machenbach@chromium.org
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/1130183002

Cr-Commit-Position: refs/heads/master@{#28293}

This introduces V8.MemoryHeapCommitted and V8.MemoryHeapUsed histograms.

In contrast to the existing memory histograms, the new histograms are uniform in time, i.e. their samples happen at regular time intervals. The --histogram-interval specifies the length of the interval.

We implement this by linearly interpolating memory stats between GC and idle notification events.

BUG=chromium:485472
LOG=NO

Review URL: https://codereview.chromium.org/1125683004

Cr-Commit-Position: refs/heads/master@{#28292}

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1130783002

Cr-Commit-Position: refs/heads/master@{#28291}