[turbofan] Transform x * -1.0 to -0.0 - x.

TEST=msjunit/asm,unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/683753004

Cr-Commit-Position: refs/heads/master@{#25176}
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MIPS: Fix uint32div bug after r25103.

The div and mod instructions on MIPS are not safe for rhs 0.

TEST=test/mjsunit/asm/uint32div.js
BUG=
R=akos.palfi@imgtec.com

Review URL: https://codereview.chromium.org/704013002

Cr-Commit-Position: refs/heads/master@{#25174}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Whitespace change to trigger bots (5)

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MIPS: Fix instruction selection test expectations after r25120.

TEST=unittests/InstructionSelectorCmpTest.Parameter,
     InstructionSelectorTest.Word32EqualWithZero
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/706633003

Cr-Commit-Position: refs/heads/master@{#25167}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25167 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Skip tests that timout on arm64

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

Review URL: https://codereview.chromium.org/702163002

Cr-Commit-Position: refs/heads/master@{#25166}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix printing and verification of RPO computation.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/700153002

Cr-Commit-Position: refs/heads/master@{#25165}
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Revert "[turbofan] Compute tighter ranges for modulus in Typer."

This reverts commit 482586747ca6bc0c94cc23f916fd190931d3a836.

TBR=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/702893002

Cr-Commit-Position: refs/heads/master@{#25164}
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fix assert in arm64 gap resolver

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/708473002

Cr-Commit-Position: refs/heads/master@{#25163}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Compute tighter ranges for modulus in Typer.

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/689133003

Cr-Commit-Position: refs/heads/master@{#25162}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Skip test in release mode for arm64

TBR=bmeurer@chromium.org, ishell@chromium.org

Review URL: https://codereview.chromium.org/701013006

Cr-Commit-Position: refs/heads/master@{#25161}
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Make slow tests on arm64

TBR=bmeurer@chromium.org, ishell@chromium.org

Review URL: https://codereview.chromium.org/701023003

Cr-Commit-Position: refs/heads/master@{#25160}
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Revert "Parser & internalization fix: ensure no heap allocs during GetString(Handle<String>)."

This reverts r25155.

Reason: breaks webkit unit tests.

BUG=
TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/707483002

Cr-Commit-Position: refs/heads/master@{#25159}
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Parser & internalization fix: ensure no heap allocs during GetString(Handle<String>).

The bug has always been there: when the parser is operating in the "immediately
internalize" mode and calls GetString, we get FlatContent of a string and then
do heap allocation.

The bug was uncovered by https://codereview.chromium.org/693803004/ (which put
the parser to the "immediately internalize" mode more often), but looking at the
code, it's possible that it can happen in other cases too.

This CL makes AstValueFactory handle this situation gracefully: it won't try to
internalize inside GetString(Handle<String>); it's unnecessary anyway since we
have the Handle<String> already.

R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/699343004

Cr-Commit-Position: refs/heads/master@{#25155}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make merge_to_branch more git-friendly.

BUG=410721
LOG=n
TEST=script_test.py
R=tandrii@chromium.org
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/702843002

Cr-Commit-Position: refs/heads/master@{#25154}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25154 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

HPhis with HParameter inputs must have Tagged representation

BUG=v8:3670
LOG=n
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/702053002

Cr-Commit-Position: refs/heads/master@{#25153}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Skip box2d for gc stress.

TBR=bmeurer@chromium.org, ishell@chromium.org

Review URL: https://codereview.chromium.org/696213003

Cr-Commit-Position: refs/heads/master@{#25152}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix deopt for assignments in non-effect context.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/701853002

Cr-Commit-Position: refs/heads/master@{#25151}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix fast-variants feature in test driver.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/701933003

Cr-Commit-Position: refs/heads/master@{#25150}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25150 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] optimize hot loop in ResolveControlFlow

R=jarin@chromium.org

BUG=

Review URL: https://codereview.chromium.org/694473002

Cr-Commit-Position: refs/heads/master@{#25149}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25149 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Replace C++ bitfields with our own BitFields

Shave this yak from orbit, it's the only way to be sure.

BUG=chromium:427616
LOG=n
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/700963002

Cr-Commit-Position: refs/heads/master@{#25148}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use compiler barrier instead of memory barrier for release/acquire atomic operations on mac.

BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/694703003

Cr-Commit-Position: refs/heads/master@{#25147}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ARM: optimize inlined doubles

Use 'vmov Dn[x], ip' instead of 'vmov Sn, ip' to load double immediates.
This patch is only useful for Turbofan as Crankshaft loads double immediates from the constant pool.
This give a little improvement on asm.js benchmarks

R=bmeurer@chromium.org, ulan@chromium.org

BUG=

Review URL: https://codereview.chromium.org/704543002

Cr-Commit-Position: refs/heads/master@{#25146}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Reland "Optimize function across closures.""

This reverts commit r25142.

TBR=ishell@chromium.org

Review URL: https://codereview.chromium.org/702853002

Cr-Commit-Position: refs/heads/master@{#25145}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Use load/store indexes as 64-bit registers on arm64.

Since r25024 load/store indexes are 64-bit value but arm64 backend was still
treating them as 32-bit value.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/698383003

Cr-Commit-Position: refs/heads/master@{#25144}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Handle store buffer slot overwrite during object promotion.

The bad scenario this fix handles:

We have a slot in a free list, then promote the object pointed-to by
the slot during scavenge. When allocating the space for the promoted
object, we overwrite the slot with the free list entry map if the
object is allocated just before the slot. After the allocation,
ScavengingVisitor::PromoteObject overwrites the slot with the
address of the allocated object, thus corrupting the free list.

Unfortunately, we do not have a way to construct a reliable repro
case because we would need to somehow craft a free list and store
buffer slot to be in the right configuration.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/695213004

Cr-Commit-Position: refs/heads/master@{#25143}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reland "Optimize function across closures."

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/703603003

Cr-Commit-Position: refs/heads/master@{#25142}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Propagate "deferredness" to dominated basic blocks.

TEST=cctest/test-scheduler
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/686273005

Cr-Commit-Position: refs/heads/master@{#25141}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't use C++11's std::trunc and std::round, use the traditional C functions.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/703893002

Cr-Commit-Position: refs/heads/master@{#25140}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add fast-variants feature to test driver.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/704723002

Cr-Commit-Position: refs/heads/master@{#25139}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25139 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make special RPO computation iterative during scheduling.

This contains the following changes squashed together:
- Switch BasicBlock::loop_end to be a basic block instead of an RPO.
- Switch ScheduleLate to use dominator depth instead of RPO.
- Switch ScheduleEarly to use dominator depth instead of RPO.
- Push out absolute RPO ordering everywhere else in the scheduler.
- Keep linked list of blocks in RPO order while scheduling.
- Switch from RPO number to depth for dominator calculation.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/696363002

Cr-Commit-Position: refs/heads/master@{#25138}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows to have several entries for the same property name.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/661133002

Cr-Commit-Position: refs/heads/master@{#25136}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add test cases based on the programs from the Embenchen benchmark suite.

TEST=mjsunit/asm/embenchen
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/704653004

Cr-Commit-Position: refs/heads/master@{#25135}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

x32: disable turbofan for x32 port

BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/697353003

Patch from Weilang Lin <weiliang.lin@intel.com>.

Cr-Commit-Position: refs/heads/master@{#25133}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix enum in debug.h

TBR=ishell@chromium.org

Review URL: https://codereview.chromium.org/700103002

Cr-Commit-Position: refs/heads/master@{#25131}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Introduce new stepping mode to step into another frame.

R=aandrey@chromium.org
BUG=chromium:267592
LOG=Y

Review URL: https://codereview.chromium.org/690263004

Cr-Commit-Position: refs/heads/master@{#25130}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't crash if the tm_zone field returned by localtime is NULL

BUG=chromium:158355
R=svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/662093003

Cr-Commit-Position: refs/heads/master@{#25129}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix missing machine type for float32/float64 array accesses.

TEST=mjsunit/asm
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/703883002

Cr-Commit-Position: refs/heads/master@{#25128}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Truncate strings synchronized.

BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/702743002

Cr-Commit-Position: refs/heads/master@{#25127}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allow uncaught exception messaging in Object.observe callbacks.

This also naturally handles pausing on uncaught exceptions in Object.observe callbacks.

R=adamk@chromium.org, yangguo@chromium.org, yurys@chromium.org
BUG=chromium:335660
LOG=Y

Review URL: https://codereview.chromium.org/692313003

Cr-Commit-Position: refs/heads/master@{#25126}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Set the FPU precision control to double-precision.

The default double precision control of FPU is extended double-precision.
While the number definition for JavaScript is double-precision. We use
the FPU control word to set the doulbe precision and replace the original
solution which store the data to memory and load it again.

This patch also fixes the error that Sunspider 1.0.2 can not run with V8 if
sse2 support is disabled.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/700053003

Patch from Chunyang Dai <chunyang.dai@intel.com>.

Cr-Commit-Position: refs/heads/master@{#25125}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

X87:  [turbofan] Add AllocateHeapNumberStub to avoid runtime call.

port ee95552f291d3c1fff78bc4f8d8621e84976e5c9 (r25107)

original commit message:
  [turbofan] Add AllocateHeapNumberStub to avoid runtime call.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/701033002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

Cr-Commit-Position: refs/heads/master@{#25124}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[x64] 64-bit shift left by 32 or more covers sign/zero extend.

TEST=unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/704703002

Cr-Commit-Position: refs/heads/master@{#25123}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Parser & internalizing: efficiency fixes."

This reverts commit 94a08565d79a13056b9d964428798dac564905bc for
breaking layout tests.

TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/692333006

Cr-Commit-Position: refs/heads/master@{#25121}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Improve compare and branch combining.

TEST=
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/700873002

Cr-Commit-Position: refs/heads/master@{#25120}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adjust test262-es6 following --harmony flag change

TBR=adamk@chromium.org
BUG=

Review URL: https://codereview.chromium.org/702753002

Cr-Commit-Position: refs/heads/master@{#25119}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: [turbofan] Add AllocateHeapNumberStub to avoid runtime call.

Port 983ca3f1e7bd8cbba45684d5c1642cd495ca9bc1
Port r25107

TEST=unittests
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/699903002

Cr-Commit-Position: refs/heads/master@{#25118}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix branch hint in select.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/703633003

Cr-Commit-Position: refs/heads/master@{#25117}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

`1..isPrototypeOf.call(null)` should return false, not throw TypeError.

BUG=v8:3483
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/433413002

Cr-Commit-Position: refs/heads/master@{#25116}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove --harmony implications for incomplete features

This is in preparation for making --harmony and --es-staging synonyms.
The only remaining difference currently is block-scoping, which is still
implied by --harmony, to avoid regressing on a long-available feature.

Also removes the special-casing of --harmony-proxies.

R=adamk@chromium.org
BUG=

Review URL: https://codereview.chromium.org/693153004

Cr-Commit-Position: refs/heads/master@{#25115}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25115 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reduce size of array in polymorph-arrays.js.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/686273003

Cr-Commit-Position: refs/heads/master@{#25114}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix predictable mode when job based sweeping is off.

BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/697423002

Cr-Commit-Position: refs/heads/master@{#25113}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Refactor ObjectGetOwnPropertyKeys to accept bitmask rather than boolean

BUG=v8:3549
LOG=Y
R=arv@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/557023002

Patch from Caitlin Potter <caitpotter88@gmail.com>.

Cr-Commit-Position: refs/heads/master@{#25111}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Introduce Diamond, a helper for building diamond-shaped control patterns.

R=mstarzinger@chromium.org, bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/694063005

Cr-Commit-Position: refs/heads/master@{#25110}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25110 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Parser & internalizing: efficiency fixes.

1) In ParseLazy, we're already using the heap, so we can also tell
AstValueFactory to internalize immediately. This is more efficient.

2) No need to collect the values in values_ and strings_ if they're already
internalized.

3) No need to collect AstValues which are strings in values_ since they don't
need to be internalized (the underlying strings will be internalized
separately).

BUG=429168
LOG=N
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/693803004

Cr-Commit-Position: refs/heads/master@{#25109}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Add AllocateHeapNumberStub to avoid runtime call.

TEST=unittests
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/703473004

Cr-Commit-Position: refs/heads/master@{#25107}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix branch hints for ChangeInt32ToTagged and ChangeTaggedToUI32.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/694353006

Cr-Commit-Position: refs/heads/master@{#25106}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Disable long running gc-stress tests on arm64 for TF.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/701723004

Cr-Commit-Position: refs/heads/master@{#25105}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Optimize function across closures."

This reverts r25102.

TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/699143002

Cr-Commit-Position: refs/heads/master@{#25104}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix recognition of Uint32Div in simplified lowering.

TEST=mjsunit/asm
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/701813003

Cr-Commit-Position: refs/heads/master@{#25103}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Optimize function across closures.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/699633002

Cr-Commit-Position: refs/heads/master@{#25102}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Follow up to fix v8::Exception::GetMessage() actually do what it was intended to.

The main thing for v8::Exception::GetMessage() is to extract message location from
error stack trace, even when stack trace capturing is off (when DevTools is closed).

BUG=chromium:427954
R=yangguo@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/696703002

Cr-Commit-Position: refs/heads/master@{#25101}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add debug mirror support for ES6 Map/Set iterators.

This is to show values preview of an iterator in DevTools console.

API=v8::Value::IsMapIterator, v8::Value::IsSetIterator
BUG=chromium:427868
R=arv@chromium.org, yangguo@chromium.org, adamk@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/693813002

Cr-Commit-Position: refs/heads/master@{#25100}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TransitionArray::Search() now returns insertion index if the entry was not found.

This is a prerequisite for https://codereview.chromium.org/661133002/.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/698043003

Cr-Commit-Position: refs/heads/master@{#25099}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Actually also advance the iterator in StorePropertyWithInterceptor

BUG=v8:3636
LOG=n
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/702523002

Cr-Commit-Position: refs/heads/master@{#25098}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] add RegisterConfiguration to decouple arch specific register layouts from compiler

R=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/694313002

Cr-Commit-Position: refs/heads/master@{#25097}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Whitespace CL to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25096}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adds dependency on sanitizer

The santizer target is empty if no sanitizers are defined, otherwise
it contains the necessary targets. Because of this we can always
depend on it. Without this dep asan builds fail.

R=brettw@chromium.org, danno@chromium.org

Review URL: https://codereview.chromium.org/697763002

Patch from Scott Violet <sky@chromium.org>.

Cr-Commit-Position: refs/heads/master@{#25094}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Also print the non-value inputs in schedule.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/702643002

Cr-Commit-Position: refs/heads/master@{#25092}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25092 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Strip useless sign-extension for store8/store16.

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/698963002

Cr-Commit-Position: refs/heads/master@{#25091}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove FAIL from test262-es6.status

TBR=rossberg
BUG=v8:3642
LOG=Y

Review URL: https://codereview.chromium.org/698073003

Cr-Commit-Position: refs/heads/master@{#25088}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25088 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Classes: static should still be treated as a strict reserved word

When --harmony-classes is enabled we did not treat static as a
strict reserved word.

BUG=v8:3642
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/652743009

Cr-Commit-Position: refs/heads/master@{#25087}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix a few nits found by PVS Studio

BUG=v8:3192
LOG=n
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/185563004

Cr-Commit-Position: refs/heads/master@{#25086}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25086 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix build because of dead fields.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/699673002

Cr-Commit-Position: refs/heads/master@{#25085}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25085 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make visualizer robust to graphs with NULL inputs.

R=mstarzinger@chromium.org, jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/652263002

Cr-Commit-Position: refs/heads/master@{#25084}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25084 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Introduce phantom weak handles in the API and use them internally for debug info

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

Review URL: https://codereview.chromium.org/687003005

Cr-Commit-Position: refs/heads/master@{#25083}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25083 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reland "Limit the number of transitions allowed per hidden class."

BUG=chromium:427813
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/676393002

Cr-Commit-Position: refs/heads/master@{#25082}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: [turbofan] Also optimize unsigned division by constant.

Port r25061 (7fe697f)

TEST=cctest,mjsunit,unittests
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/701543002

Cr-Commit-Position: refs/heads/master@{#25081}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Unbreak build fon non-TF targets.

Mips64 is affected but not for long.

TEST=
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/689113003

Cr-Commit-Position: refs/heads/master@{#25080}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix auto roll update.

Auto roll requires an additional "git fetch" now that it uses
a workdir. Before, the checkout used to be updated
externally.

BUG=408523
LOG=n
TEST=script_test.py
R=tandrii@chromium.org
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/695323002

Cr-Commit-Position: refs/heads/master@{#25079}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25079 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Introduce separate SelectLowering reducer.

Split lowering of Select nodes into a separate graph reducer and be more
clever when lowering to diamonds, i.e. reuse diamonds that have the same
condition and only add more phis to it.

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/702463002

Cr-Commit-Position: refs/heads/master@{#25078}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25078 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix uninitialized fields in the BinaryOperation ast node.

R=jkummerow@chromium.org, svenpanne@chromium.org
BUG=chromium:429194
LOG=n

Review URL: https://codereview.chromium.org/701533002

Cr-Commit-Position: refs/heads/master@{#25077}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25077 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't double-check elements in the prototype chain in array builtins

BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/701513002

Cr-Commit-Position: refs/heads/master@{#25076}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25076 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix Typer::Rangify to handle integral bitset types.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/688413003

Cr-Commit-Position: refs/heads/master@{#25074}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build fix after 25072

TBR=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/688323005

Cr-Commit-Position: refs/heads/master@{#25073}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25073 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build fix after r25071

TBR=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/684523003

Cr-Commit-Position: refs/heads/master@{#25072}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25072 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] initial framework for unittesting of register allocator

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/683133005

Cr-Commit-Position: refs/heads/master@{#25071}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix svn commit for deleted files in release scripts.

BUG=408523
LOG=n
TEST=script_test.py
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/685623004

Cr-Commit-Position: refs/heads/master@{#25070}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "[turbofan] Fix bug in Rangify."

This reverts commit r25067 for breaking Win64.

TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/697093002

Cr-Commit-Position: refs/heads/master@{#25069}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Fix bug in Rangify.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/699603002

Cr-Commit-Position: refs/heads/master@{#25067}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25067 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Enforce allocation of register for imull/mull.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/697073002

Cr-Commit-Position: refs/heads/master@{#25066}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25066 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Positive dividends are heavily favored for Int32Mod.

Mark negative dividend case as deferred, as modulus by power of two with
negative dividend almost never appears in practice.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/699573002

Cr-Commit-Position: refs/heads/master@{#25065}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make generic algorithm less generic.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/701473002

Cr-Commit-Position: refs/heads/master@{#25064}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Select tbz/tbnz when possible on ARM64.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/697653002

Cr-Commit-Position: refs/heads/master@{#25063}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25063 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Now with more checkings! Skip the CallFunctionStub when the callee function can be statically determined.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/696223002

Cr-Commit-Position: refs/heads/master@{#25062}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25062 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

[turbofan] Also optimize unsigned division by constant.

TEST=cctest,mjsunit,unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/697663003

Cr-Commit-Position: refs/heads/master@{#25061}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix constant in Math.tan implementation.

R=jkummerow@chromium.org, rtoy@chromium.org
BUG=chromium:427468
LOG=Y

Review URL: https://codereview.chromium.org/695263002

Cr-Commit-Position: refs/heads/master@{#25060}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00