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

Now that CpuProfiler sends does sampling on the profile event processing thread there is no need to launch sampler thread. The latter is used only for --prof profiler.

BUG=v8:2814
R=bmeurer@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/23011029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=hpayer@chromium.org
TEST=mjsunit/regress/regress-crbug-150729 (+FastLiteral)

Review URL: https://codereview.chromium.org/23502004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16429 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change moves sampling from SamplerThread to the profiler events processing thread and allows to configure sampling interval on Windows.

Custom tick counter is used instead of OS::Ticks as the latter has maximum presicion of 1ms while we need 100us. QueryPerformanceCounter is used to retrieve high-precision time as described in http://msdn.microsoft.com/en-us/library/ee417693(VS.85).aspx

BUG=v8:2814
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23271003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16428 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is to prepare for speculative concurrent OSR. I'm planning to add
another builtin to patch to, to indicate a concurrent OSR.

R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23608004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16425 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23030002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23455012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This recognizes escape paths that flow through informative definitions
as an escaping use. This only applies to HCheckMaps so far.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/23514009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

BUG=none

TEST=none
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23654005

Patch from Bangfu Tao <bangfu.tao@samsung.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23665002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change removes --prof-lazy command line flag that was introduced for the old CPU profiler implementation in Chrome DevTools. DevTools now use profiler API defined in v8-profiler.h

This change also removes methods for pausing resuming --prof profiler. These methods were deprecated in v.3.20 (https://code.google.com/p/v8/source/browse/branches/3.20/include/v8.h#4629)

After this change the profiler will always start if --prof option is passed and can be stopped either in the tests or if write to log file fails.

BUG=None
R=bmeurer@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/23478010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16417 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Drop the previous Mutex and ScopedLock classes from platform files.

Add new Mutex, RecursiveMutex and LockGuard classes, which are
designed after their C++11 counterparts, so that at some point
we can simply drop our custom code and switch to the C++11
classes. We distinguish regular and recursive mutexes, as the
latter don't work well with condition variables, which will be
introduced by a followup CL.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23625003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=None
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23591006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add<> asserts the return type, which might not be an HAdd in this case
because of constant folding.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23754002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16414 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

These classes are meant to replace OS::Ticks() and OS::TimeCurrentMillis(),
which are broken in several ways. The ElapsedTimer class implements a
stopwatch using TimeTicks::HighResNow() for high resolution, monotonic
timing.

Also fix the CpuProfile::GetStartTime() and CpuProfile::GetEndTime()
methods to actually return the time relative to the unix epoch as stated
in the documentation (previously that was relative to some arbitrary
point in time, i.e. boot time).

The previous Windows issues have been resolved, and we now use GetTickCount64()
on Windows Vista and later, falling back to timeGetTime() with rollover
protection for earlier Windows versions.

BUG=v8:2853
R=machenbach@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/23490015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/23475006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16412 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23583010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14382 (5ef0d87)

Original commit message:
ARM: VFP cleanup now that VFP2 is the baseline

BUG=none
TEST=none
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/23534011

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add OptimizedCodeEntry as a new heap object type. An optimized code entry represents an association between the native context, a function, optimized code, and the literals. Such associations are needed by the deoptimizer and optimized code cache to efficiently find related optimized code and functions for a given context or shared function info.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23691002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2843
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23462007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Cross-compiling from Linux to Android requires -lrt for the host toolset.", "Fix Visual Studio debug build after r16398." and "Reland "Add Chromium-style TimeDelta, Time and TimeTicks classes, and a new ElapsedTimer class.""

This reverts commit r16398, r16399 and r16402 for breaking the Windows
WebKit tests. Will reland fix which doesn't use High Resolution Timer
for ElapsedTimer (we suspect QueryPerformanceCounter overhead is
responsible for test breakage).

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23710002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16405 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23705002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00