This allows code like this:

  var map = new Map();
  map.set(1, 'One');
  ...
  var iter = map.values();
  var res;
  while (!(res = iter.next()).done) {
    print(res.value);
  }

BUG=v8:1793
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/259883002

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21615 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

     Additionally delete the unused Throw(BailoutReason)

Port r21582 (41dd40b)

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/305013012

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21612 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r21589 (a9f3228)

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/309043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r21589 (a9f3228)

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/306053011

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21610 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org
BUG=v8:3333
LOG=N

Review URL: https://codereview.chromium.org/303463006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21609 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This restructures the L1 deopt jump table so that the base address of
the L2 table is only loaded once. This significantly reduces the size of
the generated code because only one big immediate needs to be loaded.

The total size of all L1 deopt tables generated during Octane is almost
halved in size, from about 1105kB to 584kB.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/305963010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21608 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/297303006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ishell@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=21593

Review URL: https://codereview.chromium.org/300423003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yurys@chromium.org

Review URL: https://codereview.chromium.org/309533009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/300553008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21604 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/305643005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21603 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r21422 (38edcd2)

Original commit message:
On ia32, SAHF is guaranteed. It's only necessary to probe for it on x64.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/301083002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r21564 (a39968c)

Original commit message:
This gives us much more room to customize on different functions, by
using MajorKey to differentiate them.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/307823003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r21559 (dfd0cf8)

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/303053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21600 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/312513002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

v8::DontDelete is set for Unforgeable properties, so just not setting PROHIBITS_OVERWRITING should be enough.

The secondary "feature" of not allowing accessors to be installed in extending objects is incorrect and confusing, given that it only applies to accessors but not to regular properties:
Object.defineProperty({__proto__:window}, "location", { value: 10 })
works where
Object.defineProperty({__proto__:window}, "location", { get: function() {} })
doesn't work.

LOG=y
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/306203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/309653003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21595 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r21593 for breaking the Webkit tests.

TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/310593004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/300423003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit/array-shift,mjsunit/array-shift2,mjsunit/array-shift3
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/308793010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use the zone that is passed to New() and fix implementation of
HPushArguments::AddInput() to match HPhi::AddInput().

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/309763003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21591 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yurys@chromium.org

Review URL: https://codereview.chromium.org/303693010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/308593003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=chromium:368114
LOG=y
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/302063004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21586 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Inlined optimized runtime functions: expose Runtime versions for direct testing, skip Hydrogen versions

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/302703004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=chromium:377209
LOG=n
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/306543002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3359
LOG=y
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/309483002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21583 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Additionally delete the unused Throw(BailoutReason)

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/308083006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/305963002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r21578 (dcf13aa)

Original commit message:
- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/301023004

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21580 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r21578 (dcf13aa)

Original commit message:
- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

BUG=

Review URL: https://codereview.chromium.org/307903002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/300893003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The original patch which ensured that Object.observe did allocations in the correct context regressed performance about 12%. This patch gets back most of that (about 11%) by simply returning the correct function which is then directly callable from JS, rather than by making the call from the runtime function. A side-effect is that their implementation is shorter.

LOG=Y
BUG=NONE
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/307543008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

If the embedder calls V8::TerminateExecution while we're running microtasks, bail out
and clear any pending microtasks.

All other exceptions are simply swallowed. No current Blink or V8 microtasks throw, this
just ensures something sane happens if another embedder decides to pass a throwing
microtask (or if ours unexpectedly throw due to, e.g., stack exhaustion).

BUG=371566
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/294943009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

FastCloneShallowArrayStub should not be used it the length of the array is too big as it could eventually exceed the allowed size limit for manually folded allocations.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/300283003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/298253008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21572 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=372579
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/306663002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21571 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=./tools/run_benchmarks.py benchmarks/v8.json
TEST=cd tools/unittests; python -m unittest run_benchmarks_test

Does not support custom results processors yet. Will implement that in a future CL.

BUG=374740
LOG=n
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/293023006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21570 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/300873006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21569 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/305643007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21568 ce2b1a6d-e550-0410-aec6-3dcde31c8c00