Port r17886 (e2fb3ed)

Original commit message:
The %_OneByteSeqStringSetChar intrinsic expects its arguments to be checked before being called for efficiency reasons, but the fuzzer provided no such checks. Now the intrinsic is robust to bad input if FLAG_debug_code is set.

R=plind44@gmail.com, yangguo@chromium.org
TEST=test/mjsunit/regress/regress-320948.js
BUG=chromium:320948
LOG=Y

Review URL: https://codereview.chromium.org/68793008

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17891 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes unused variable compile failures in release builds introduced in r17887.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/76413004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Verify that code objects are treated weakly by the AllocationSite
dependent_code field.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/61923006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The %_OneByteSeqStringSetChar intrinsic expects its arguments to be checked before being called for efficiency reasons, but the fuzzer provided no such checks. Now the intrinsic is robust to bad input if FLAG_debug_code is set.

R=yangguo@chromium.org
TEST=test/mjsunit/regress/regress-320948.js
BUG=chromium:320948
LOG=Y

Review URL: https://codereview.chromium.org/72813004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17867 (a305bd3)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/60763005

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17885 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17865 (5b2e594)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/76163003

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This also reverts 17879 and 17880.

BUG=v8:3015
TBR=svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/76323002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17881 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=svenpanne@chromium.org
BUG=none
LOG=n

Review URL: https://codereview.chromium.org/67463003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17880 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=svenpanne@chromium.org
BUG=none
LOG=n

Review URL: https://codereview.chromium.org/76313002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This broke after a recent refactoring.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/76193002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17878 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also provide a default implementation to use in cctests.

For now, there are just two thread releated callbacks. In future CLs, I will
move callbacks registered e.g. via V8::SetFooCallback over.

BUG=v8:3015
R=svenpanne@chromium.org, danno@chromium.org
LOG=no

Review URL: https://codereview.chromium.org/75283002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=dcarney@chromium.org

Review URL: https://chromiumcodereview.appspot.com/67613005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/76293003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17875 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=321060
LOG=n
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/73463004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is currently not observable without --allow-natives-syntax because all internal usages are safe, but it deserves to be fixed nonetheless.

BUG=chromium:320922
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/67103003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17873 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org, machenbach@chromium.org, svenpanne@chromium.org
LOG=y
BUG=none

Review URL: https://codereview.chromium.org/63093004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17869 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/61163007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/75973005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=v8:2991
LOG=Y

Review URL: https://codereview.chromium.org/68203029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/76073003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reverts changes in HValue::IsInteger32Constant() made in https://code.google.com/p/v8/source/detail?r=17787

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

Review URL: https://codereview.chromium.org/68493005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/59243004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Bugfix: dependent code field in AllocationSite was keeping code objects alive even after context death.

BUG=320532
LOG=Y
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/62803008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/74193004

Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17847 (67c371a4)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/75953002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17853 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17834 (cf97fcb6)

Original commit message:
Make HTypeofIsAndBranch accept any representation input
when the input is known unbox number value, eliminate the dynamic check

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/75943002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17823 (b1b8ae0)

BUG=v8:3010
LOG=N
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/62833011

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add static_cast<int> in HPositionInfo::position to please Win64 build.

Improvements in positions handling in optimizing compiler.

- When building binary arithmetic op and comparison restore source position of the operation itself before building operation itself after it was changed by building operands. This ensures that position recorded for operation points to the operation token instead of pointing to the rightmost operand;

- Add support for recording operands' positions and use these positions when inserting HChange instructions;

- When generating hydrogen.cfg emit H-instruction position as BCI (previously 0 was emitted), additionally on every lithium instruction emit annotation pointing to corresponding hydrogen-instruction. This allows to easily reach from deopt_id to lithium instruction and from it to hydrogen instruction and source position.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/59703011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/75413002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jkummerow@chromium.org
BUG=v8:3013
LOG=N

Review URL: https://codereview.chromium.org/75353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/60093005

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r17838 for breaking arm build.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/75213005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:3014
LOG=N

Review URL: https://codereview.chromium.org/61623009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

I sometimes observe broken pipe errors when I run gyp, which causes the gyp
process to fail. This seems to happen if gyp is executed under heavy I/O
pressure.

This change removes the pipes by replacing "echo |" with "< /dev/null".
Technically these are not the same, because "echo |" prints a newline while
"< /dev/null" doesn't, but this difference is not significant in the context of
the commands in toolchain.gypi.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/73623002

Patch from Yuta Kitamura <yutak@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

when the input is known unbox number value, eliminate the dynamic check

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/58923004

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

To be called with a cron job.

TEST=tools/push-to-trunk/auto_roll.py

TODO: Add a revision filter to allow "MIPS" related changes to take over the lkgr.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/70373002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17833 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

'throw %NAME(..)' cause hydrogen optimizations to be disabled for
surrounding function. This patch rectifies.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/71153004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/66843011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00