TBR=mstarzinger@chromium.org

BUG=

Review URL: https://codereview.chromium.org/659333002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org
BUG=chromium:419663
LOG=Y

Review URL: https://codereview.chromium.org/658723005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org, arv@chromium.org, ishell@chromium.org
BUG=v8:3330
LOG=N

Review URL: https://codereview.chromium.org/649603003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r24691 because win64 release build breaks.

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/659313002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24695 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Trimming the graph consists of breaking links from nodes that are not reachable from end to nodes that are reachable from end. Such dead nodes show up in the use lists of the live nodes and though mostly harmless, just clutter up the graph. They also can limit instruction selection opportunities, so it is good to get rid of them.

This CL is one half of the ControlReducer functionality, the other half
being branch folding.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/661923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/653093002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org, ishell@chromium.org

Review URL: https://codereview.chromium.org/652303002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24683 (b1533f6)

Original commit message:
Per the latest ES6 draft, super(...) translates into a call
to function's prototype.

BUG=v8:3330
LOG=N
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/661043003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/664693002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jochen@chromium.org
BUG=v8:3628
LOG=N

Review URL: https://codereview.chromium.org/663483003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adapted from patch contributed by Isiah Meadows <impinball@gmail.com>.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/657863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jochen@chromium.org
BUG=v8:3628
LOG=N

Review URL: https://codereview.chromium.org/650423005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/638853004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=arv@chromium.org, machenbach@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/645933003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Per the latest ES6 draft, super(...) translates into a call
to function's prototype.

R=arv@chromium.org, ishell@chromium.org, verwaest@chromium.org
BUG=v8:3330
LOG=N

Review URL: https://codereview.chromium.org/661433002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also small reformat in Iterators/forof.js

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/662723006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/641343005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/658063003

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3638
LOG=n
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/659253002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BFC requires same register for input and output and causes introduction
of some unneccesary gap moves.

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

Review URL: https://codereview.chromium.org/658283003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24678 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/660653008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24677 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode.html for
details about the debug mode.

BUG=v8:3638
LOG=y
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/648293007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=wingo@igalia.com

Review URL: https://codereview.chromium.org/641123003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r24661.

original commit message:

  Eliminate special keyed load string stub in favor of uniform handlers.

  KeyedLoadIC installs a special case if the receiver is a string.
  Although there are several maps for strings, in practice we seem to
  be able to treat them individually because a given KeyedLoad site
  only sees 1-2 string types

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/643783005

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port 24485
Fixed a bug of "psllq" instruction in x64

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/658813003

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/659663005

Patch from Ben Noordhuis <ben@strongloop.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24672 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The Isolate version of v8::VisitHandlesWithClassIds is needed
for https://codereview.chromium.org/651713002/

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/664473002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24671 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/489833004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24670 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24662 (4722032)

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/657413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24669 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24661 (5499efb)

Original commit message:
KeyedLoadIC installs a special case if the receiver is a string.
Although there are several maps for strings, in practice we seem to
be able to treat them individually because a given KeyedLoad site
only sees 1-2 string types.

BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/657413002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24668 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24654 (66aa0fb)

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/661803002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24667 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Need to svn fetch in order to make svn find-rev work.

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

Review URL: https://codereview.chromium.org/662643002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Missing line in a test to dispose of a string.

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/643873004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also change the tests to use git mode.

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

Review URL: https://codereview.chromium.org/658033005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This adds flags in Scope to track wheter a Scope uses "this" and,
"arguments". The information is exposed via Scope::uses_this(),
and Scope::uses_arguments(), respectively. Flags for tracking
usage on any inner scope uses are available as well via
Scope::inner_uses_this(), and Scope::inner_uses_arguments().

Knowing whether scopes use "this" and "arguments" will be handy
to generate the code needed to capture their values when generating
the code for arrow functions.

BUG=v8:2700
LOG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/422923004

Patch from Adrian Perez de Castro <aperez@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/659053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

KeyedLoadIC installs a special case if the receiver is a string.
Although there are several maps for strings, in practice we seem to
be able to treat them individually because a given KeyedLoad site
only sees 1-2 string types.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/602773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We cannot add new JSToNumber nodes here in general, because:

 a) The inserted ToNumber operation screws up observability of valueOf.
 b) Deoptimization at ToNumber doesn't have corresponding bailout id.

TEST=cctest,mjsunit
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/649543004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/655383003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3576
LOG=
R=arv@chromium.org, svenpanne@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/626323002

Patch from Diego Pino <dpino@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00