Report precise number of incrementally marked bytes to gc tracer.

BUG=
R=ernstm@chromium.org

Review URL: https://codereview.chromium.org/428263006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22776 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Clean-up and repair cumulative marking and sweeping time stats.

BUG=
R=ernstm@chromium.org

Review URL: https://codereview.chromium.org/432743002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
X87: Land the Fan (disabled)

port r22709.

This patch only covers the code change of orginal X87 port.
For the changes under ./src/compiler/ and ./tools/gyp/v8.gyp file,
I will submit it in another seperate patch.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/430423002

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Only activate SSE2 by default on ia32

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/432863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22779 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
X87: Unify InstanceofStub interface descriptors

port r22755.

original commit message:
  Unify InstanceofStub interface descriptors

BUG=
R=mstarzinger@chromium.org, weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/435603007

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
TF: Lowering representation changes to machine operators (WIP: need inline allocation for some). Move tests related to lowering representation changes into test-changes-lowering.cc.

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

Review URL: https://codereview.chromium.org/437583002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix compile error on Win32.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/435883002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Implement lowering of JSStoreContext to machine operators.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/420073004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Add Int32AddWithOverflow machine operator.

TEST=cctest/test-run-machops,cctest/test-instruction-selector-arm
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/436593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Extend TF test coverage to supported targets.

R=danno@google.com, titzer@chromium.org
TEST=all

Review URL: https://codereview.chromium.org/432313002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22787 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
TF: Rename ConvertXToY machine operators to ChangeXToY.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/435923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22788 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[arm] Unify instruction selector for Word32Neg.

Previously code generation for Word32Neg (implemented as Word32Xor
with -1) was somewhat adhoc and not complete. Now it's uniform
and supports the full range of operand2's.

TEST=cctest/test-instruction-selector-arm,cctest/test-run-machops
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/434923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22789 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Blacklist some webkit and mozilla test for TF.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/433493004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Add support for Int32SubWithOverflow.

TEST=cctest/test-run-machops,cctest/test-instruction-selector-arm
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/432373002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'