Embed constant pools within their corresponding Code
objects.

This removes support for out-of-line constant pools in favor
of the new approach -- the main advantage being that it
eliminates the need to allocate and manage separate constant
pool array objects.

Currently supported on PPC and ARM.  Enabled by default on
PPC only.

This yields a 6% improvment in Octane on PPC64.

R=bmeurer@chromium.org, rmcilroy@chromium.org, michael_dawson@ca.ibm.com
BUG=chromium:478811
LOG=Y

Review URL: https://codereview.chromium.org/1162993006

Cr-Commit-Position: refs/heads/master@{#28801}

Review URL: https://codereview.chromium.org/1152993005

Cr-Commit-Position: refs/heads/master@{#28800}

Rolling v8/tools/clang to b7e158c9336030c1527dfbce92656a2d7b8cfb60

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1150313007

Cr-Commit-Position: refs/heads/master@{#28799}

BUG=

Review URL: https://codereview.chromium.org/1167613004

Cr-Commit-Position: refs/heads/master@{#28798}

LOG=N
BUG=v8:4124

Review URL: https://codereview.chromium.org/1153373003

Cr-Commit-Position: refs/heads/master@{#28797}

This is behind the flag "--harmony-atomics", and it only works on
SharedArrayBuffers. This implementation only includes the runtime functions.
The TurboFan implementation will be next.

The draft spec for Atomics can be found here:
https://docs.google.com/document/d/1NDGA_gZJ7M7w1Bh8S0AoDyEqwDdRh4uSoTPSNn77PFk

BUG=
LOG=n

Review URL: https://codereview.chromium.org/1162503002

Cr-Commit-Position: refs/heads/master@{#28796}

Port 4b8051a0

Original commit message:
This splits the SuperReference AST node into SuperPropertyReference and
SuperCallReference. The super call reference node consists of three
unresolved vars to this, new.target and this_function. These gets
declared when the right function is entered and if it is in use. The
variables gets assigned in FullCodeGenerator::Generate.

This is a revert of the revert 88b1c917

BUG=v8:3768
LOG=N

Review URL: https://codereview.chromium.org/1160973008

Cr-Commit-Position: refs/heads/master@{#28795}

Port e4782a9b

Original commit message:
Previously the %_DateField intrinsic would also check the object and
throw an exception if you happen to pass something that is not a valid
JSDate, which (a) violates our policy for instrinsics and (b) is hard to
optimize in TurboFan (even Crankshaft has a hard time, but there we will
never inline the relevant builtins, so it doesn't show up). The throwing
part is now a separate intrinsics %_ThrowIfNotADate that throws an
exception in full codegen and deoptimizes in Crankshaft, which means the
code for the current use cases is roughly the same (modulo some register
renamings/gap moves).

R=bmeurer@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1170463002

Cr-Commit-Position: refs/heads/master@{#28794}

This will significantly simplify the serialization code, as well
as speeding it up (by triggering only a single allocation instead of O(size)
allocations).

BUG=chromium:478263
LOG=y

Review URL: https://codereview.chromium.org/1157843006

Cr-Commit-Position: refs/heads/master@{#28793}

Review URL: https://codereview.chromium.org/1159553011

Cr-Commit-Position: refs/heads/master@{#28792}

Port 4b8051a0

Original commit message:
This splits the SuperReference AST node into SuperPropertyReference and
SuperCallReference. The super call reference node consists of three
unresolved vars to this, new.target and this_function. These gets
declared when the right function is entered and if it is in use. The
variables gets assigned in FullCodeGenerator::Generate.

This is a revert of the revert 88b1c917

R=arv@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1146403010

Cr-Commit-Position: refs/heads/master@{#28791}

BUG=chromium:493284
LOG=N

Review URL: https://codereview.chromium.org/1147343004

Cr-Commit-Position: refs/heads/master@{#28790}

BUG=v8:4131
LOG=n

Review URL: https://codereview.chromium.org/1155493007

Cr-Commit-Position: refs/heads/master@{#28789}

This fixes a corner-case where arrow functions that require a context
allocate none, because there are no additional slots allocated. Note
that this didn't happen with true function scopes because they always
had at least the receiver slot.

The outcome was a context chain that no longer was in sync with the
scope chain, hence context slot loads were bogus. This is observable
using the DYNAMIC_LOCAL optimization in all compilers.

R=rossberg@chromium.org,wingo@igalia.com
TEST=mjsunit/harmony/regress/regress-4160
BUG=v8:4160
LOG=N

Review URL: https://codereview.chromium.org/1146063006

Cr-Commit-Position: refs/heads/master@{#28788}

The IC for modulus is usually way faster than converting the inputs to
numbers and doing a Float64Mod on them.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1170433002

Cr-Commit-Position: refs/heads/master@{#28787}

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1150853009

Cr-Commit-Position: refs/heads/master@{#28786}

Constants are taken from chromium/src/google_breakpad/common/minidump_cpu_arm64.h

BUG=

Review URL: https://codereview.chromium.org/1149293005

Cr-Commit-Position: refs/heads/master@{#28785}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1155723005

Cr-Commit-Position: refs/heads/master@{#28784}

Also turn on the macro to disable to-be-deprecated APIs for core

BUG=v8:4134
R=vogelheim@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1162363005

Cr-Commit-Position: refs/heads/master@{#28783}

Previously the %_DateField intrinsic would also check the object and
throw an exception if you happen to pass something that is not a valid
JSDate, which (a) violates our policy for instrinsics and (b) is hard to
optimize in TurboFan (even Crankshaft has a hard time, but there we will
never inline the relevant builtins, so it doesn't show up). The throwing
part is now a separate intrinsics %_ThrowIfNotADate that throws an
exception in full codegen and deoptimizes in Crankshaft, which means the
code for the current use cases is roughly the same (modulo some register
renamings/gap moves).

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1167813003

Cr-Commit-Position: refs/heads/master@{#28782}

BUG=

Review URL: https://codereview.chromium.org/1151993005

Cr-Commit-Position: refs/heads/master@{#28781}

This means something like new Float32Array([23, 42]) will be allocated on heap.

BUG=v8:3996
R=bmeurer@chromium.org,mstarzinger@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1144393003

Cr-Commit-Position: refs/heads/master@{#28780}

fix two additional cases in heap.cc where the AIX
compiler is now reporting that a variable may be
uninitialized.

R=svenpanne@chromium.org, mbrandy@us.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1157053007

Cr-Commit-Position: refs/heads/master@{#28779}

Both PrepareForScavenge and ResetAllocationInfo clear semi-space mark bits before Scavenge. Doing this once is good enough.

BUG=

Review URL: https://codereview.chromium.org/1158623003

Cr-Commit-Position: refs/heads/master@{#28778}

Revert of Implement %TypedArray%.prototype.{reduce,reduceRight} (patchset #3 id:40001 of https://codereview.chromium.org/1154423014/)

Reason for revert:
Breaks Win32 mjsunit/harmony/typedarray-reduce, see http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%20nosnap%20-%20shared/builds/7121/steps/Check/logs/typedarray-reduce for details.

Original issue's description:
> Implement %TypedArray%.prototype.{reduce,reduceRight}
>
> This patch implements the last two methods on TypedArrays. These
> were previously committed and led to a test failure.
>
> BUG=v8:3578
> LOG=Y
> R=adamk
>
> Committed: https://crrev.com/95d779ecc9816ac20c1565bebeeac6a1ef29f1c7
> Cr-Commit-Position: refs/heads/master@{#28773}

TBR=adamk@chromium.org,dehrenberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3578

Review URL: https://codereview.chromium.org/1162043008

Cr-Commit-Position: refs/heads/master@{#28777}

In typed lowering we can use the ReferenceEqual simplified operator
instead of ObjectIsSmi to check for context extensions. This generates
the desired code.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1163963003

Cr-Commit-Position: refs/heads/master@{#28776}

R=bmeurer@chromium.org
BUG=v8:4158
LOG=N

Review URL: https://codereview.chromium.org/1162353002

Cr-Commit-Position: refs/heads/master@{#28775}

Rolling v8/tools/clang to 12a1473d6de70775c77726b62aed18bfd56818c1

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1166643004

Cr-Commit-Position: refs/heads/master@{#28774}

This patch implements the last two methods on TypedArrays. These
were previously committed and led to a test failure.

BUG=v8:3578
LOG=Y
R=adamk

Review URL: https://codereview.chromium.org/1154423014

Cr-Commit-Position: refs/heads/master@{#28773}

Revert of Embedded constant pools. (patchset #12 id:220001 of https://codereview.chromium.org/1131783003/)

Reason for revert:
Breaks Linux nosnap cctest/test-api/FastReturnValuesWithProfiler, see http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%202/builds/609/steps/Check/logs/FastReturnValuesWithP..

Original issue's description:
> Add support for Embedded Constant Pools for PPC and Arm
>
> Embed constant pools within their corresponding Code
> objects.
>
> This removes support for out-of-line constant pools in favor
> of the new approach -- the main advantage being that it
> eliminates the need to allocate and manage separate constant
> pool array objects.
>
> Currently supported on PPC and ARM.  Enabled by default on
> PPC only.
>
> This yields a 6% improvment in Octane on PPC64.
>
> R=danno@chromium.org, svenpanne@chromium.org, bmeurer@chromium.org, rmcilroy@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
> BUG=chromium:478811
> LOG=Y
>
> Committed: https://crrev.com/a9404029343d65f146e3443f5280c40a97e736af
> Cr-Commit-Position: refs/heads/master@{#28770}

TBR=rmcilroy@chromium.org,ishell@chromium.org,rodolph.perfetta@arm.com,mbrandy@us.ibm.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:478811

Review URL: https://codereview.chromium.org/1155703006

Cr-Commit-Position: refs/heads/master@{#28772}

Adds SIMD 128 alignment sizes and masks.
Adds support in Heap for SIMD alignments and fills.
Reworks cctest so that each test independently aligns its allocation address, rather than depending on the previous tests ending state. Adds test cases for SIMD.

LOG=N
BUG=v8:4124

Committed: https://crrev.com/4347d56a6919ae06a70e4a4a8b2f1179cf47bc7e
Cr-Commit-Position: refs/heads/master@{#28767}

Review URL: https://codereview.chromium.org/1159453004

Cr-Commit-Position: refs/heads/master@{#28771}

Embed constant pools within their corresponding Code
objects.

This removes support for out-of-line constant pools in favor
of the new approach -- the main advantage being that it
eliminates the need to allocate and manage separate constant
pool array objects.

Currently supported on PPC and ARM.  Enabled by default on
PPC only.

This yields a 6% improvment in Octane on PPC64.

R=danno@chromium.org, svenpanne@chromium.org, bmeurer@chromium.org, rmcilroy@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:478811
LOG=Y

Review URL: https://codereview.chromium.org/1131783003

Cr-Commit-Position: refs/heads/master@{#28770}

This splits the SuperReference AST node into SuperPropertyReference and
SuperCallReference. The super call reference node consists of three
unresolved vars to this, new.target and this_function. These gets
declared when the right function is entered and if it is in use. The
variables gets assigned in FullCodeGenerator::Generate.

This is a revert of the revert 88b1c917

BUG=v8:3768
LOG=N
R=wingo@igalia.com, adamk@chromium.org

Review URL: https://codereview.chromium.org/1168513004

Cr-Commit-Position: refs/heads/master@{#28769}

Revert of Add SIMD 128 alignment support to Heap. (patchset #3 id:40001 of https://codereview.chromium.org/1159453004/)

Reason for revert:
Breaks Linux - arm64 - sim - MSAN
TBR=jochen

Original issue's description:
> Add SIMD 128 alignment support to Heap.
> Adds SIMD 128 alignment sizes and masks.
> Adds support in Heap for SIMD alignments and fills.
> Reworks cctest so that each test independently aligns its allocation address, rather than depending on the previous tests ending state. Adds test cases for SIMD.
>
> LOG=N
> BUG=v8:4124

TBR=hpayer@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1169453003

Cr-Commit-Position: refs/heads/master@{#28768}

Adds SIMD 128 alignment sizes and masks.
Adds support in Heap for SIMD alignments and fills.
Reworks cctest so that each test independently aligns its allocation address, rather than depending on the previous tests ending state. Adds test cases for SIMD.

LOG=N
BUG=v8:4124

Review URL: https://codereview.chromium.org/1159453004

Cr-Commit-Position: refs/heads/master@{#28767}

Implementations factored out from Array. Tests are derived from
normal array toString tests.

BUG=v8:3578
LOG=Y
R=adamk

Review URL: https://codereview.chromium.org/1166623004

Cr-Commit-Position: refs/heads/master@{#28766}

R=dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1156823003

Cr-Commit-Position: refs/heads/master@{#28765}

Port 450002f3

Original commit message:
It's necessary to do this in order to know how many type feedback vector slots
we should allocate for the object literal.

R=mvstanton@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1166473004

Cr-Commit-Position: refs/heads/master@{#28764}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1146173005

Cr-Commit-Position: refs/heads/master@{#28763}

BUG=v8:4137
LOG=n

Review URL: https://codereview.chromium.org/1157093003

Cr-Commit-Position: refs/heads/master@{#28762}