X87: Support for super assignments in for..in.

port r24560.

original commit message:
  Support for super assignments in for..in.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/653823002

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24572 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix non-TF targets after r24546.

Fix mips64 and x87 builds.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/644463005

Patch from Paul Lind <paul.lind@imgtec.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Add OWNERS file for compiler unittests.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/648413003

Patch from Paul Lind <paul.lind@imgtec.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[arm] Add support for SMMLA, SMMLS and SMMUL.

TEST=cctest,unittests
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/648283002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[arm] Drop SMMLS support.

Apparently

 SMMLS r, b, c, a

computes

 r = ((a << 32) - b * c) >> 32

while the documentation is kinda misleading and states that it should
compute

 r = a - ((b * c) >> 32)

The actual behavior is kinda useless, so we drop the instruction again.

TEST=cctest,unittests
TBR=dcarney@chromium.org

Review URL: https://codereview.chromium.org/654653004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Increase final idle time in idle notifcation of test test-api/Regress2107.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/653863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Use register for instruction operands when SameAsFirst is specified.

As the register allocator cannot reuse spill slots, SameAsFirst
constraint means that we would have to do an expensive move to a
differen spill slot if we choose to spill. Forcing the operand
to a register is cheaper.

In zlib, we get >10% speed-up for ia32, >25% for x64.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/650083003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24580 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Output schedule, instructions and register allocator in C1 visualizer format when --turbo-trace is specified.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/637313002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24583 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] remove some of the dependency of Instruction on Schedule

R=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/646393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add control input to LoadField.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/649183003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Switch chromium roll script to git.

BUG=chromium:418923,chromium:410721
LOG=n
TEST=script_test.py
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/657483002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
build fix

TBR=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/652163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Add support for shifted and rotated operands on ARM64.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/642923003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24591 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Always compile functions in the snapshot with deoptimization support.

This prevents an unnecessary deopt-reopt cycle due to type feedback
having been thrown away as part of recompiling with deopt support.
(For non-snapshotted functions this is not an issue.)

Bonus: Add missing space in --trace-ic output, and provide names for
PropertyDescriptor's methods, because passing anonymous functions to
SetUpLockedPrototype frightens and confuses our FuncNameInferrer.

R=hpayer@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/648243002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Squeeze the layout of various AST node types.

The following AST node types were improved (in decreasing number of
importance for asm.js-like source code): Expression, VariableProxy,
Assignment, BinaryOperation, Declaration, Property, Call.

BUG=chromium:417697
LOG=y
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/646803004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Preserve order of fields when doing slow-to-fast object migration.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/614883003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Optimize division/modulus by constant.

TEST=cctest,mjsunit,unittests
R=dcarney@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/654833002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24595 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge https://github.com/v8/v8