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

Review URL: https://codereview.chromium.org/1219863003

Cr-Commit-Position: refs/heads/master@{#29454}

Port 1fa4285e

Original commit message:
    This involves:
    - Enabling the tail call optimization reducer in all cases.
    - Adding an addition flag to CallFunctionParameters to mark call sites
      that can be tail-called enabled.
    - Only set the tail-call flag for %_CallFunction.

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

Review URL: https://codereview.chromium.org/1224533002

Cr-Commit-Position: refs/heads/master@{#29453}

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

Review URL: https://codereview.chromium.org/1219133004

Cr-Commit-Position: refs/heads/master@{#29452}

BUG=490559
LOG=NO

Review URL: https://codereview.chromium.org/1218863002

Cr-Commit-Position: refs/heads/master@{#29451}

Additionally rips out (now) unnecessary duplicate code in DefineArrayProperty.

BUG=

Review URL: https://codereview.chromium.org/1224523002

Cr-Commit-Position: refs/heads/master@{#29450}

Keeping this CL separate in case there are more GC-stress problems.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1217543006

Cr-Commit-Position: refs/heads/master@{#29449}

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1219663009

Cr-Commit-Position: refs/heads/master@{#29448}

BUG=v8:4137
LOG=n

Review URL: https://codereview.chromium.org/1221713003

Cr-Commit-Position: refs/heads/master@{#29447}

BUG=

Review URL: https://codereview.chromium.org/1221083004

Cr-Commit-Position: refs/heads/master@{#29446}

BUG=none
R=vogelheim@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1218153006

Cr-Commit-Position: refs/heads/master@{#29445}

BUG=v8:4137
LOG=n

Review URL: https://codereview.chromium.org/1226473003

Cr-Commit-Position: refs/heads/master@{#29444}

BUG=

Review URL: https://codereview.chromium.org/1213593004

Cr-Commit-Position: refs/heads/master@{#29443}

BUG=

Review URL: https://codereview.chromium.org/1077153004

Cr-Commit-Position: refs/heads/master@{#29442}

Cr-Commit-Position: refs/heads/master@{#29441}

This is an adaptation of test-profile-generator/BailoutReason to when
try-catch statements are optimizable. They will no longer cause any
bailout reason to be reported.

R=yangguo@chromium.org
TEST=cctest/test-profile-generator/BailoutReason

Review URL: https://codereview.chromium.org/1213113007

Cr-Commit-Position: refs/heads/master@{#29440}

The only right way to enable access checks is to install access check callbacks on an object template via v8::ObjectTemplate::SetAccessCheckCallbacks(). It does not make sense to enable access checks on an arbitrary object.

Review URL: https://codereview.chromium.org/1217893012

Cr-Commit-Position: refs/heads/master@{#29439}

Review URL: https://codereview.chromium.org/1223583003

Cr-Commit-Position: refs/heads/master@{#29438}

Clang warns if there are missing braces around a subobject
initializer. The most common idiom that triggers this is:
  STRUCT s = {0};
if the first field of STRUCT is itself a struct. This can
be more simply written as:
  STRUCT s = {};
which also prevents the warning from firing.

BUG=chromium:505297
LOG=n

Review URL: https://codereview.chromium.org/1219233003

Cr-Commit-Position: refs/heads/master@{#29437}

This involves:
- Enabling the tail call optimization reducer in all cases.
- Adding an addition flag to CallFunctionParameters to mark call sites
  that can be tail-called enabled.
- Only set the tail-call flag for %_CallFunction.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1216933011

Cr-Commit-Position: refs/heads/master@{#29436}

Support 32-bit cmp with shift/extend by reusing the existing add/sub shift and
extend code.

Review URL: https://codereview.chromium.org/1218103005

Cr-Commit-Position: refs/heads/master@{#29435}

port 7281f801 (r29384)

    Fix a bug in R29384.

original commit message:

    Revert "Revert relanded strong property access CL"

    Regression issues should be solved. Initial patchset is the original, subsequent patchsets are the fixing modifications.

    This reverts commit 4ac7be56.

BUG=

Review URL: https://codereview.chromium.org/1210873007

Cr-Commit-Position: refs/heads/master@{#29434}

port 7015fd20 (r29402)

original commit message:

    Up until now the context register was listed explicitly in each stub's
    CallInterfaceDescriptor. This was problematic, because it was listed
    first in the list of register parameters--which is fine for Crankshaft,
    which is more or less built to handle the context as the first
    parameter-- but not ideal for TurboFan, which adds the context at
    the end of all function parameters. Now the context register is no
    longer in the register list and can be handled appropriately by both
    compilers. Specifically, this allows the FunctionType specified for
    each CallInterfaceDescriptor to exactly match the parameter register
    list.

BUG=

Review URL: https://codereview.chromium.org/1216543004

Cr-Commit-Position: refs/heads/master@{#29433}

port b4275a70 (r29378)

original commit message:

    This change makes possible to save and restore the FP registers
    in the Prologue and Return parts for the CallAddress kind functions.

BUG=

Review URL: https://codereview.chromium.org/1214573006

Cr-Commit-Position: refs/heads/master@{#29432}

Rolling v8/third_party/icu to 7fe225d77f307fdbe24695179a84336ef95c1253

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1225463002

Cr-Commit-Position: refs/heads/master@{#29431}

Conditionally including Array and TypedArray methods seems to cause
a slowdown in V8 context creation, possibly due to the new code added.

BUG=chromium:504629
R=adamk@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/1215863003

Cr-Commit-Position: refs/heads/master@{#29430}

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1217813012

Cr-Commit-Position: refs/heads/master@{#29429}

This was added in https://chromium.googlesource.com/v8/v8/+/4a709dd65,
but the only check for it that remained in the final patch is inside
a DCHECK. It appears that the approach for checking use of class names
in methods evolved quite a bit over the review of the original patch.

Review URL: https://codereview.chromium.org/1219993002

Cr-Commit-Position: refs/heads/master@{#29428}

BUG=

Review URL: https://codereview.chromium.org/1220883006

Cr-Commit-Position: refs/heads/master@{#29427}

This is more consistent with the DOM API, and is clearer w.r.t. which values
are available in the lexical environment of the Worker.

BUG=chromium:497295
R=jarin@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1218553004

Cr-Commit-Position: refs/heads/master@{#29426}

Disabling rsqrt and recip for mips32r1 in assembler, disassembler and simulator

Review URL: https://codereview.chromium.org/1221663006

Cr-Commit-Position: refs/heads/master@{#29425}

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1213683005.

Cr-Commit-Position: refs/heads/master@{#29424}

Checking for native context is faster than checking for global object. Additionally it speeds up the case were it actually is the native context, while not slowing down the alternative case. The bootstrapper only needs to access the native context from the native context, so this avoids the expensive fallback.

BUG=

Review URL: https://codereview.chromium.org/1214903017

Cr-Commit-Position: refs/heads/master@{#29423}

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1220053002.

Cr-Commit-Position: refs/heads/master@{#29422}

Port 7015fd20

Original commit message:
    Up until now the context register was listed explicitly in each stub's
    CallInterfaceDescriptor. This was problematic, because it was listed
    first in the list of register parameters--which is fine for Crankshaft,
    which is more or less built to handle the context as the first
    parameter-- but not ideal for TurboFan, which adds the context at
    the end of all function parameters. Now the context register is no
    longer in the register list and can be handled appropriately by both
    compilers. Specifically, this allows the FunctionType specified for
    each CallInterfaceDescriptor to exactly match the parameter register
    list.

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

Review URL: https://codereview.chromium.org/1218463004

Cr-Commit-Position: refs/heads/master@{#29421}

Fixes debug mode assertions.

TEST=cctest/test-run-machops/RunChangeUint32ToFloat64_B
BUG=

Review URL: https://codereview.chromium.org/1211143003

Cr-Commit-Position: refs/heads/master@{#29420}

BUG=chromium:505998
LOG=n

Review URL: https://codereview.chromium.org/1222543003

Cr-Commit-Position: refs/heads/master@{#29419}

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1215593005.

Cr-Commit-Position: refs/heads/master@{#29418}

This makes sure that all pointer fields in an entry in the optimized
code map are considered weak, not just the code object. If just one
field of an entry dies, then the whole entry dies.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1217813013

Cr-Commit-Position: refs/heads/master@{#29417}

This change makes the patching logic less prone to errors in the
face of variable instruction mov sequences.

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

Review URL: https://codereview.chromium.org/1213383003

Cr-Commit-Position: refs/heads/master@{#29416}

This extends the existing support for --noflush-optimized-code-cache
mechanism to the newly added context-independent code entry in the
optimized code map. Note that this machanism is still off by default.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1220883002

Cr-Commit-Position: refs/heads/master@{#29415}