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

BUG=none
LOG=n
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/470083002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reason for revert: broke inspector

| Fulfill overdue TODO.
|
| R=mstarzinger@chromium.org
|
| Review URL: https://codereview.chromium.org/460643002

TBR=yangguo@chromium.org,mstarzinger@chromium.org
BUG=403521
LOG=n

Review URL: https://codereview.chromium.org/470913002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23115 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/475463003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/461233003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

LOG=N
BUG=v8:3093
R=aandrey@chromium.org

Review URL: https://codereview.chromium.org/461023002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also fix some issues and improve test coverage.

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

Review URL: https://codereview.chromium.org/469743002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jarin@chromium.org
TEST=cctest/test-run-deopt

Review URL: https://codereview.chromium.org/473453002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23110 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit tests in debug
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/467203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Same for WeakMap/WeakSet

https://bugs.ecmascript.org/show_bug.cgi?id=3111

The change from the reverted version is that LoadIC_Miss now uses Name
instead of String.

BUG=v8:3508
LOG=Y
R=adamk@chromium.org, dslomov@chromium.org

Review URL: https://codereview.chromium.org/464093002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23108 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org
TEST=cctest/test-run-deopt

Review URL: https://codereview.chromium.org/468153002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=sigurds@chromium.org

Review URL: https://codereview.chromium.org/471563002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/460333002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=titzer@chromium.org
TEST=benchmarks/octane/zlib

Review URL: https://codereview.chromium.org/468863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/467103003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

As discussed in person with Benedikt, it is better to remove the assertion because it is too brittle. The assertion says that the continuation block should immediately follow the call. However, there are exceptions - such as nop or constant pool in-between being fine - that make the assertion brittle.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/471523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This prepares for tracking promise rejections when debugger is off.

R=aandrey@chromium.org

Review URL: https://codereview.chromium.org/462413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/470533002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/464773004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/471483002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r23096.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/470573002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/464033002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reason for revert:
TestSetConstructorIterableValue(WeakSet) fails on x64.debug

TBR=adamk@chromium.org,dslomov@chromium.org
LOG=Y
BUG=

Review URL: https://codereview.chromium.org/461193002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23093 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Same for WeakMap/WeakSet

https://bugs.ecmascript.org/show_bug.cgi?id=3111

BUG=v8:3508
LOG=Y
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/466003002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add test for non object keys in the iterable passed to the constructor.

BUG=v8:3399
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/451033003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/466863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixing gclient runhooks failure caused by reverted commit r23050.

TEST=
BUG=
R=jkummerow@chromium.org, paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/467583002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23088 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/460413002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is because allocation folding can cause uninitialized and hence uniterable fragments. Trying to inspect them causes SizeFromMap() crashes.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/467693002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23084 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

"Own" symbols are symbols that can only denote own properties of
objects.

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

Committed: https://code.google.com/p/v8/source/detail?r=23056

Review URL: https://codereview.chromium.org/464473002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23083 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port contributed by Raymond Toy <rtoy@google.com>.

R=rtoy@chromium.org
LOG=N
BUG=v8:3481

Review URL: https://codereview.chromium.org/457643002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/462033002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/460723002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Breaks compilation on Mac64

| TEST=compiler-unittests
| R=jarin@chromium.org
|
| Committed: https://code.google.com/p/v8/source/detail?r=23077

TBR=bmeurer@chromium.org,jarin@chromium.org
LOG=n
BUG=none

Review URL: https://codereview.chromium.org/456843004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23079 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/462813003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23078 ce2b1a6d-e550-0410-aec6-3dcde31c8c00