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

This extracts the Git-independent part of the change log body generation. This CL intends no change in behavior.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/61263011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=ishell@chromium.org

Review URL: https://chromiumcodereview.appspot.com/68213024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ishell@chromium.org

Review URL: https://chromiumcodereview.appspot.com/73893003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3010
R=verwaest@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/72333004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/74753004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r17809 for breaking the build.

TBR=plind44@gmail.com,
BUG=

Review URL: https://codereview.chromium.org/74803002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17810 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

3rd (of 3) CLs to ensure complete alignment of FixedDoubleArrays.

TEST=
BUG=
R=mstarzinger@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/35313002

Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/73923004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17804 (15aa3804)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/74363002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ishell@chromium.org
TEST=mjsunit/allocation-folding

Review URL: https://codereview.chromium.org/73563004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17805 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/19492007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17804 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/59093007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r17782 (32e3232)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/74013002

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

LOG=Y
BUG=chromium:319835,chromium:319860
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/74113002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
LOG=Y
BUG=319722

Review URL: https://codereview.chromium.org/73943004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17800 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r17798 for allocating too much memroy in tests.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/74093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17799 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
LOG=Y
BUG=319722

Review URL: https://codereview.chromium.org/73943004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17798 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/73193004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17796 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Test that allocations which regularly happen inline in the generated code and create objects in bump pointer space will be recorded by the allocation tracker.

BUG=chromium:277984
LOG=N
R=loislo@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/73893005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/73973002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/66993006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch also clean up 64-bits literals handling.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/61763025

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17789 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Instead, code sites that are interested in underlying constant integer values
should use HValue::IsInteger32Constant(). The issue is that the infer representation phase shouldn't "see through" HForceRepresentation nodes to an underlying, and less specific representation.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/65643003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17787 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/71783003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- In an Else block it's possible to add more If<>'s in the same builder that are
  treated as an else if.
- Simplified and cleaned-up some of the IfBuilder's internals.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/66983002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00