Port r23168 (d860963)

BUG=
R=akos.palfi@imgtec.com

Review URL: https://codereview.chromium.org/473243003

Patch from Balazs Kilvady <balazs.kilvady@imgtec.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/478373002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add temporary hack compatible with old delete behavior so we can roll into blink. We'll need to update the broken test.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/483753003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23171 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use LookupIterator in SetAccessor / DefineAccessor and remove "search_hidden_prototypes" from LookupOwn

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/468163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/466283003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/469733002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23167 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/468073002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/463963002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/466033002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/468493002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/480993002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/484653002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Move some methods from OperatorProperties into Scheduler that are only related to scheduling. Now these methods take a Node* parameter, as decisions relating floating control need distinguish not just operators but nodes.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/474983003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/480543002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23157 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix the ChangeLowering to properly use ControlEffect nodes
to turn the control output of IfTrue nodes into an effect
input for the Load nodes, and to properly use Finish nodes
to ensure that allocation and store were both performed
prior to actually using the allocated heap number.

TEST=compiler-unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/479163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23149 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

For example, recognize

  0 == r1 << r2

and generate a single

  MOVS rt, r1, lsl r2

instruction.

TEST=cctest,compiler-unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/478233002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/482693002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=rossberg@chromium.org

Review URL: https://codereview.chromium.org/485653002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/478253002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=chromium:403409
LOG=y
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/468863003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The odd-numbered items in the queue are deferred objects, not promises.

R=aandrey@chromium.org

Review URL: https://codereview.chromium.org/473803003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

See https://codereview.chromium.org/475823002 for the discussion.

TEST=compiler-unittests
R=jarin@chromium.org
BUG=v8:3489
LOG=n

Review URL: https://codereview.chromium.org/483643002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=marja@chromium.org

Review URL: https://codereview.chromium.org/471923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also refactor the unit tests and add support to easily
match DAGs using CaptureEq() matcher.

TEST=compiler-unittests
BUG=v8:3489
LOG=n
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/480863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/482523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This makes the scheduler more than 30x faster on zlib.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/474963002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23137 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/479563004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use LeaveFrame so that the constant pool pointer register is correctly restored
when using the out-of-line constant pool.  Also clean up duplicate code in
builtins-arm.cc.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/469283002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/473943002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes failures when table has more than 8192 entries, and preserves
optimization to have 2 instructions per entry.

TEST=mozilla/regress-398085-01
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/477623002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/473873002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/467293003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/476733002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/471953002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

They might be undefined for uninitialized iterators.
The rest of the code is ready for this eventuality.

R=arv@chromium.org, adamk@chromium.org
BUG=403292
LOG=N

Review URL: https://codereview.chromium.org/468813003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/461933002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/472783002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

And while we are at it, use the stupid MSVC compiler intrinsics.

TEST=base-unittests/BitTest
TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/473773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MachineType now tracks both the representation and the value type of machine quantities and is used uniformly throughout TurboFan.

These types can now express uint8, int8, uint16, and int16, i.e. signed and unsigned smallish integers. Note that currently only uint8 and uint16 are implemented in the TF backends.

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

Review URL: https://codereview.chromium.org/470593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Move recognition of rotate-right operations to the
MachineOperatorReducer, so we don't need to repeat that in the
InstructionSelector for every backend.

TEST=base-unittests,compiler-unittests,cctests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/469213002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00