review.tizen.org Git - platform/upstream/v8.git/log

Refactoring: Extract low-level git from push and merge scripts.

- This adds a python layer on top of the low-level git calls to control parameter passing and return values.
- This also fixes a bug in FindLastTrunkPush that only shows up in manual mode when the last push versions are iterated.
- The order of some parameters changed in some git calls in the tests to be uniform.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/171423013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix tools/cross_build_gcc.sh.

The cross_build_gcc.sh script didn't set LINK, so cross builds would
fail at the last step.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170843011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19514 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove the unused LoadInitialArrayMap.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/173883003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove ASSERT related to major-key, it's not given that they match.

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/166323015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't turn objects with empty-string properties into fast-mode.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/165743003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use ComputeHandlerFlags to find handlers, rather than manually encoding.

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/170203003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Re-enable Parser::symbol_cache_ (after a long time!)

The Parser never used the symbol stream produced by the PreParser for anything
useful, due to a bug introduced 3.5 years ago by
https://codereview.chromium.org/3356010/diff/7001/src/parser.cc.

The bug is that calling Initialize on symbol_cache_ doesn't change its
length. So the length remains 0, and the "if" in Parser::LookupSymbol is always
true, and Parser::LookupCachedSymbol is never called and symbol_cache_ never
filled.

This bug also masked a bug that the symbol stream produced by PreParser doesn't
match what Parser wants to consume. The repro case is the following:

var myo = {if: 4}; print(myo.if);

PreParser doesn't log a symbol for the first "if", but in the corresponding
place, Parser consumes one symbol from the symbol stream. Since the consumed
symbols were never really used, this mismatch went unnoticed.

This CL also fixes that bug.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/172753002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19505 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Port recent ARM optimizations in LCodeGen::DoAccessArgumentsAt.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/172333004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix int32 use in Lithium string functions

Assert register sizes in StringCharLoadGenerator, and fix char_code comparison
in DoStringCharFromCode.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/172483002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19503 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix options in push-to-trunk script.

BUG=
TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/173533002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19501 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Fix performance regression on sunspider string-unpack-code.

Regression surfaced with r19009, but latent error was present since
r17767.

BUG=
R=dusan.milosavljevic@rt-rk.com

Review URL: https://codereview.chromium.org/171793005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Harmony: optimize Math.clz32.

Port r19487 (bd8c70f)

BUG=v8:2938
LOG=N
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/172533002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix template copy constructor in zone_allocator

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/165943005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19498 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Introduce 'branch types' that extend the architectural conditions.

The branch types include 'always' and 'never', and types like reg_zero (CBZ) and
reg_bit_clear (TBZ).
This will be used by incoming improvements to the code generated for
deoptimization exit points.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170783002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix compilation with clang

The size_ member is only used in debug mode, so we should only define
it in debug mode.

BUG=none
R=rodolph.perfetta@arm.com, ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/171583004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19495 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Refactoring: Extract git checks in push and merge scripts.

This extracts the pattern "if call git fails: raise exception", which is spread all over the place. Now all calls to git are required to return gracefully and give a uniform exception message if they don't.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/166903012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19494 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Re-enable fast/js/reserved-words-as-property.html.

Error message migration is done and Blink has updated the expected result.

R=yangguo@chromium.org, ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/169353004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add comments about lazy parsing and lazy compilation.

Also rename is_lazily_compiled in (Pre)Parser; it really means "is lazily
parsed" and doesn't correspond to the lazy compilation decision.

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/169223009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix r19474: Tidy up Push and Pop TODOs.

This fixes some snapshot=off, debug-mode regressions.

  - Call CheckConstPool when entering InsturctionAccurateScopes. This
    fixes a problem in PushMultipleTimes where 'count' is very high.
    Each call to PushHelper starts an InstructionAccurateScope
    immediately after the last one finishes, with no opportunity for the
    constant pool to be generated.

  - Temporarily disable AssertStackConsistency in PrepareForPush. This
    assertion seems to push the code size too far, and several cctests
    (intermittently) fail due to buffer size limitations. I would like
    to renable this assertion later.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/172453002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19491 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Upgrade Symbol implementation to match current ES6 behavior.

Refresh the implementation of Symbols to catch up with what the
specification now mandates:

* The global Symbol() function manufactures new Symbol values,
  optionally with a string description attached.

* Invoking Symbol() as a constructor will now throw.

* ToString() over Symbol values still throws, and
  Object.prototype.toString() stringifies like before.

* A Symbol value is wrapped in a Symbol object either implicitly if
  it is the receiver, or explicitly done via Object(symbolValue) or
  (new Object(symbolValue).)

* The Symbol.prototype.toString() method no longer throws on Symbol
  wrapper objects (nor Symbol values.) Ditto for Symbol.prototype.valueOf().

* Symbol.prototype.toString() stringifies as "Symbol("<description>"),
  valueOf() returns the wrapper's Symbol value.

* ToPrimitive() over Symbol wrapper objects now throws.

Overall, this provides a stricter separation between Symbol values and
wrapper objects than before, and the explicit fetching out of the
description (nee name) via the "name" property is no longer supported
(by the spec nor the implementation.)

Adjusted existing Symbol test files to fit current, adding some extra
tests for new/changed behavior.

LOG=N
R=arv@chromium.org, rossberg@chromium.org, arv, rossberg
BUG=v8:3053

Review URL: https://codereview.chromium.org/118553003

Patch from Sigbjorn Finne <sigbjornf@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Clean up weak objects in optimized code.
This prepares for weak objects in IC stubs.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/172233003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19489 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Second attempt at introducing a premonomorphic state in the call"

This reverts commits r19463 and r19457 (includes MIPS port), there was a
Sunspider perf issue and on reflection we can achieve the necessary
result in a new way.

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/172383003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Harmony: optimize Math.clz32.

R=svenpanne@chromium.org
BUG=v8:2938
LOG=N

Review URL: https://codereview.chromium.org/172133003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19487 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Harmony: implement Math.cbrt, Math.expm1 and Math.log1p.

BUG=v8:2938
LOG=N
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/163563003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Prepare push to trunk. Now working on version 3.25.1.

R=danno@chromium.org
TBR=danno@chromium.org

Review URL: https://codereview.chromium.org/170283011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Retrieve bleeding edge push revision from trunk commit message.

This is part of moving towards an lkgr-push script and prepares the deprecation of the prepare push commit.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/169843002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Bugfix in check elimination with a regression test.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/172173003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix cornercase in r19475

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/169353003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ES6: Tighten up Object.prototype.__proto__

The spec requires that we throw under certain conditions.

BUG=v8:3064
LOG=y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/103853006

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Refactor persisting state in push and merge scripts.

- The backed state dict is now persisted and restored in the step template as a json file
- All explicit persist/restore calls are removed
- Added testing an unexpected script failure + restart with state recovery to the merge-to-branch test
- This CL is not changing external behavior of the scripts

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170583002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Narrows predicate for type bounds

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/170943005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix Hydrogen bounds check elimination

When combining bounds checks, they must all be moved before the first load/store
that they are guarding.

BUG=chromium:344186
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/172093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Tidy up Push and Pop TODOs.

This addresses several TODOs:
  - Push and Pop requests can be queued up so that arrays of Registers
    can be pushed efficiently, with just one PrepareForPush/Pop.
  - PushMultipleTimes now takes an Operand. This allows variable-length
    arguments arrays to be initialized, for example.
  - A NoUseRealAbortsScope has been added to Abort so that
    AssertStackConsistency can be called from PrepareForPush without
    introducing infinite recursion.

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

Review URL: https://codereview.chromium.org/170623002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Remove early_exit unused mechanism in CompareMap.

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

Review URL: https://codereview.chromium.org/169733003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Replace a Cmp/Branch sequence by a conditional compare.

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

Review URL: https://codereview.chromium.org/169403003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Do not emit receiver map in CheckPrototypes.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/170613002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Makefile: don't force -Dv8_optimized_debug=0 unnecessarily

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/170243003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

(Pre)Parser: Move ParseExpression and ParseArrayLiteral to ParserBase.

Notes:
- The functions already did the same thing -> no changes in logic.
- One less glue function needed now.

R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/169853002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix zone_allocator to support comparison

R=danno@chromium.org

Review URL: https://codereview.chromium.org/171713004

Patch from Daniel Clifford <danno@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19468 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fast-forward version number on bleeding_edge to 3.25.0

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/170843008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Prepare push to trunk. Now working on version 3.24.41.

R=jkummerow@chromium.org
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/171783002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Second attempt at introducing a premonomorphic state in the call target caches.

Port: r19457 (9d8d5f3)

Original commit message:
This time we don't go through the premonomorphic state for
the Array call target caches to avoid losing information from
allocation sites that aren't only used once, but where the
resulting array is used heavily.

Patch from Kasper Lund <kasperl@chromium.org>.

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/170903002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19463 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix WrapReceiver corrupting receiver register

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170433006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Let the Simulator trap BLR XZR instructions.

This instruction is used as a guard for the constant pool.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170673003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19461 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add filler at the new space top when forcing scavenge.

We only seem to force scavenge in our cctest test suite, so this is
expected to fix some flakiness in our tests, but it will not
improve stability of v8 itself.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/167423004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Reland "Allow ICs to be generated for own global proxy."

Port r19430 (70bb668)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/170343004

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

DevTools: Drop kSinTable dependency off the heap profiler ArrayBuffer backing_store test

LOG=N
R=dslomov@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/170253008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Second attempt at introducing a premonomorphic state in the call
target caches.

This time we don't go through the premonomorphic state for
the Array call target caches to avoid losing information from
allocation sites that aren't only used once, but where the
resulting array is used heavily.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/169683003

Patch from Kasper Lund <kasperl@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19457 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Minor code generation improvement: only load the object map if needed.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/170503004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Load target types and handlers before IC computation.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/170563002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix compile on Windows

TBR=yurys@chromium.org,dslomov@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/170543002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix merge-to-branch options.

BUG=
TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/170443003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix merge-to-branch python port.

This fixes a forgotten parameter when calling the script's toplevel method and adds the same usage message as in the bash script.

BUG=
TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/164373015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19450 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix compile error.

LOG=N
TBR=yurys@chromium.org,dslomov@chromium.org

Review URL: https://codereview.chromium.org/166193005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19449 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix merge-to-branch imports.

BUG=
TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/170513002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix compiler warning in r19444.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/167463004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19447 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make merge-to-branch python port executable

BUG=
TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/170493002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19446 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allow self_size to be larger than 2GB in heap snapshots.

LOG=N
R=dslomov@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/166383002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Let the MacroAssembler resolve branches to distant targets.

Code generation would fail when assembling a branch to a label that is bound
outside the immediate range of the instruction. A64 is sensitive to this, as the
various branching instructions have different ranges, going down to +-32KB for
TBZ/TBNZ.  The MacroAssembler is augmented to handle branches to targets that
may exceed the immediate range of instructions.

When branching backward to a label exceeding the instruction range, the
MacroAssembler can simply tweak the generated code to use an unconditional
branch with a longer range. For example instead of
    B(cond, &label);
the MacroAssembler can generate:
    b(InvertCondition(cond), &done);
    b(&label);
    bind(&done);

Since the target is not known when the branch is emitted, forward branches uses
a different mechanism. The MacroAssembler keeps track of forward branches to
unbound labels. When the code generation approaches the end of the range of a
branch, a veneer is generated for the branch.

BUG=v8:3148
LOG=Y
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/169893002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add merge-to-branch python port.

- To ease a line-by-line review, the script is intentionally close to the former bash version
- Disambiguate the existing "-r" option for reviewer in the other scripts
- The options design will be refactored in a follow up CL

TEST=python -m unittest test_scripts.ScriptTest.testMergeToBranch
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/163183004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19443 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Pass a BailoutReason to Runtime::kAbort.

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

Review URL: https://codereview.chromium.org/168903004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19442 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

templatize operand constructors

R=jochen@chromium.org

BUG=

Review URL: https://codereview.chromium.org/170403003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Directly store the transition target on LookupResult in TransitionResult.
BUG=chromium:343964
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/170343003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19440 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Fix register usage in LCodeGen::ArgumentsLength

The result should be just stored in a W register

BUG=none
R=m.m.capewell@googlemail.com, ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/170363002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19439 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Consistent use of const for LookupResult.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/170073003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19438 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Create HandleScope before calling GetScriptLineNumber

Otherwise we may crash.

BUG=None
LOG=N
R=alph@chromium.org, hpayer@chromium.org

Review URL: https://codereview.chromium.org/169773002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Update LICENSE date.

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

Review URL: https://codereview.chromium.org/144663005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19436 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Harmony: implement Math.clz32

R=dslomov@chromium.org, svenpanne@chromium.org
BUG=v8:2938
LOG=N

Review URL: https://codereview.chromium.org/169783002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19435 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixed and improved code for integral division. Fixed and extended tests.

Arithmetic right shifting is *not* division in two's complement
representation, only in one's complement. So we convert to one's
complement, shift, and go back to two's complement. By permutating the
last steps, one can get efficient branch-free code. This insight comes
from the paleozoic era of computer science, see the paper from 1976:

Guy Lewis Steele Jr.: "Arithmetic Shifting Considered Harmful"
ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-378.pdf

This results in better and more correct code than our previous
"neg/shift/neg" dance.

LOG=y
BUG=v8:3151
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/166793002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19434 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Harmony: implement Math.fround.

R=jarin@chromium.org
BUG=v8:2938
LOG=N

Review URL: https://codereview.chromium.org/169513002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19433 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Handlify DescriptorArray::Merge()."

This reverts commit r19410.

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/169113005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove unnecessary checks in CompileStoreInterceptor on a64.

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/163963003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reland "Allow ICs to be generated for own global proxy."

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/170343002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Optimize a loop by using post-indexing.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/169543002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19429 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Cleaning of Builtins::Generate_FunctionCall.

This is mostly register renaming, and a minor optimization merging two TBZ into
one TST and BNE.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/166833002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19428 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make tools/bash-completion.sh robust against arbitrary CWD

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/168983006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Update DoAllocate() to use a W register for the size

Inputs should always be 32bit

BUG=none
R=m.m.capewell@googlemail.com, ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/167123004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also compile A64 for quickcheck target

We don't run tests yet because even in release mode, this will take a
considerable amount of time.

BUG=none
R=ulan@chromium.org, machenbach@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/169303006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19425 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Update v8heapconst.py

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/170263002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert r19409: "Allow ICs to be generated for own global proxy."

Causing Layout test crashes

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/170253002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19423 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Remove arch specific api callback generate functions.

Port r19406 (4eab88a)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/169243003

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: fix cctest/test-code-stubs-a64/ConvertDToI.

R=danno@google.com

Review URL: https://codereview.chromium.org/169863002

Patch from Ulan Degenbaev <ulan@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert r19403: "A64: Tidy up Push and Pop TODOs."

Causes a64 debug asserts

TBR=jacob.bramley@arm.com,ulan@chromium.org

Review URL: https://codereview.chromium.org/169303007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build fix for 19415

TBR=jochen@chromium.org

BUG=

Review URL: https://codereview.chromium.org/169793002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

(Pre)Parser: Simplify NewExpression handling (fixed).

Notes:
- We use simple recursion to keep track of how many "new" operators we have seen
and where.
- This makes the self-baked stack class PositionStack in parser.cc unnecessary.
- Now the logic is also unified between Parser and PreParser.
- This is a fixed version of r19386.

R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/168583008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19417 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make a single HeapEntry per single JSArrayBuffer data in heap snapshot.

It turned out that JSArrayBuffer's may share their backing_store so
the backing_store should go through hash map registration just like
other heap objects, so they won't be reported twice.

BUG=341741
LOG=N
R=dslomov@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/166993002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

make a64 compile on mavericks - part 1

R=jochen@chromium.org

BUG=

Review URL: https://codereview.chromium.org/169523005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64 support for DoubleToIStub (truncating).

Added support for truncating DoubleToIStub and reorganize the macro-assembler
dToI operations to do the fast-path inline and the slow path by calling the
stub.

This a port essentially a port of https://codereview.chromium.org/23129003/.

R=jacob.bramley@arm.com, ulan@chromium.org

Review URL: https://codereview.chromium.org/160423002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19414 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Support elements transitions in load elimination

BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/167893007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Add a premonomorphic state to the call target cache."

This reverts commit r19402

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/169713002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19412 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Cleanup the double field tracking in Hydrogen.

Use a dedicated BuildLoadNamedField() with PropertyAccessInfo,
similar to BuildStoreNamedField() for optimized graph building,
and a dedicated BuildLoadNamedField() for the code stubs, and
don't depend on FLAG_track_double_fields during code generation.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/168583006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19411 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Handlify DescriptorArray::Merge().

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/169363002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19410 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allow ICs to be generated for own global proxy.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/166233004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Make simulator compiler with optdebug

For some reason, the compiler cannot deduce the array bounds in opt
debug mode. An explicit check makes it happy.

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

Review URL: https://codereview.chromium.org/169473003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix heap snapshot crash when JSArrayBuffer has no backing_store.

LOG=N
BUG=344239
R=dslomov@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/169393004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove arch specific api callback generate functions

R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/169353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added a special stack guard to deopt marked allocation sites.

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

Review URL: https://codereview.chromium.org/169563002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A64: Tidy up Push and Pop TODOs.

This addresses several TODOs:
  - Push and Pop requests can be queued up so that arrays of Registers
    can be pushed efficiently, with just one PrepareForPush/Pop.
  - PushMultipleTimes now takes an Operand. This allows variable-length
    arguments arrays to be initialized, for example.
  - A NoUseRealAbortsScope has been added to Abort so that
    AssertStackConsistency can be called from PrepareForPush without
    introducing infinite recursion.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/169533002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00