This fixes a corner case introduced by escape analysis where phis are
introduced in OSR loop entry blocks that don't have a merge index and
hence cannot contain OSR values.

R=titzer@chromium.org
TEST=mjsunit/compiler/escape-analysis

Review URL: https://codereview.chromium.org/23503025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2867
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23453019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2845
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23871002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

to allow allocation of large packed arrays in paged spaces.

BUG=v8:2790
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23604023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23437020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Drop the previous Semaphore class from platform files.

Add new Semaphore class using the new TimeDelta class for
the WaitFor() operation. Consistently assert correct behaviour
for the different implementations.

Improve test coverage of the Semaphore class.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23748003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23264015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Otherwise store ICs will never be initialized, due to lookup->CanHoldValue(value);

BUG=chromium:256330
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23533012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts 16467 for breaking windows build

TBR=svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/23824005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16468 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23479015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/23620015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23584004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

+ Replace DeferredTaggedToINoSSE2 by DoubleToIStub and a fpu version.

+ Prevent truncating TaggedToI from bailing out.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/22290005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23859002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16463 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23824002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r16322 (8a03070)

Original commit message:
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.

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23694014

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16461 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23718004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2865
R=verwaest@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/23536007

Patch from Vsevolod Vlasov <vsevik@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23819005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23819003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23495011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23600011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23707007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16452 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/23522010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16451 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add V8_GLIBC_PREREQ() macro to test the version of the GNU C library.
Make V8_GNUC_PREREQ() work for compilers that masquerade as GCC (you
can always use V8_CC_* to test for a specific one if you need to).
Add V8_LIBC_* to detect the C library in use.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/23717009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16450 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixed mac build.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23490022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16449 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/23541006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23460012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23480013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23441018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16443 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23532017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16442 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "ConstantPoolSizeAt() should return number of Instructions instead, otherwise, some of the code will be treated as constant pool when printing code in ARM disassembler."

This reverts commit r16419 for breaking the ARM simulator tests.

TEST=mjsunit/regress/regress-2624
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23531013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23567002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16440 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23619010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16439 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23766003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16438 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23694011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Mac builder has some problems compiling.

BUG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/23496020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16434 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When compiling deferred code we have to remember the corresponding stack state and ensure that the deferred code does not manipulate the order of elements.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23135018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16433 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/22909051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

even if constant values indicate that they are unreachable.

BUG=chromium:280333
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23623009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00