Implementation for this case

var x = {};
x.__defineGetter__("y", function Y() { return 42; });

BUG=v8:1818
TEST=cctest/test-heap-profiler/FastCaseGetter

Review URL: http://codereview.chromium.org/8491041
Patch from Ilya Tikhonovsky <loislo@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8518001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8540007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9981 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8540006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9980 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also simplify ia32 and x64 handing of the trace_elements_transition flag.

R=jkummerow@chromium.org
BUG=none
TEST=array-literal-transitions.js

Review URL: http://codereview.chromium.org/8539011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

1) Make sure that commits sneaking in before the "Prepare Push" CL is landed are included in the push.
2) Easy-to-copy output at the end.

Review URL: http://codereview.chromium.org/8511060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Original commit message:

Add a level of indirection to exception handler addresses.

To support deoptimization of exception handlers, the handler address in the
stack is converted to a pair of code object and an index into a separate
table of code offsets.  The index part is invariant under deoptimization.
The index is packed into the handler state field so that handler size does
not change.

R=vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8538011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts r9975.  This change broke (at least) snapshots on x64.

TBR=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8540005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

To support deoptimization of exception handlers, the handler address in the
stack is converted to a pair of code object and an index into a separate
table of code offsets.  The index part is invariant under deoptimization.
The index is packed into the handler state field so that handler size does
not change.

R=vegorov@chromium.org,fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8462010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9975 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch continues the refactoring that started in r9597 and
extends it with support for the serializer.
This is required for MIPS support in the serializer.

Review URL: http://codereview.chromium.org/8467010
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=vegorov@chromium.org

Review URL: http://codereview.chromium.org/8536011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9967 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8538006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8539008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9965 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Our Heap::FreeQueuedChunks generates fake inner chunks in large object
pages queued for freeing, so that StoreBuffer::Filter can recognize them
as pages to be freed. This also relies on MemoryChunk::Contains to work
properly, which is why the size field needs to be initialized as well.

R=vegorov@chromium.org
BUG=v8:1817
TEST=mozilla/js1_5/Regress/regress-360969-05

Review URL: http://codereview.chromium.org/8536009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9964 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8511052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9963 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8520010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9962 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Depends on http://codereview.chromium.org/8318014/

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8392038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Leaving out derived construct trap for now, which I'm working on separately.

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8506020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8462016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9959 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8508058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8517007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9957 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:1808
TEST=cctest/test-hashing.cc

Review URL: http://codereview.chromium.org/8512004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9956 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

r9871 (5baeaf57) changed the fill value for deleted entries in hash tables from null_value to the_hole_value.
This commit changes an assertion in MIPS code that expects this value.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8479028
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9955 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8520001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9954 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Heap::Shrink is called from EnsureFromSpaceIsCommitted at the very start of the GC. At this moment live bytes counts on pages are in inconsistent states. Some pages might have been already swept but have not been yet reached by an incremental marker (or incremental marker is not in progress) and have live bytes count set to 0. Thus we can't rely only on LiveBytes to determine which pages can be released to the OS.

R=mstarzinger@chromium.org
BUG=100414

Review URL: http://codereview.chromium.org/8507038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9953 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It is frequently used inside our builtins and is implemented purely
by HIR instructions: a smi check, an instance-type check and an
in-object property store for storing to the value field.
Review URL: http://codereview.chromium.org/8507016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9952 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=erik.corry@gmail.com
BUG=
TEST=

Review URL: http://codereview.chromium.org/8465016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9949 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS uses a different NAN bit pattern to represent quiet or
signalling NANs than does x86 or ARM.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8510007
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9948 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r9936 (61034d).

BUG=
TEST=

Review URL: http://codereview.chromium.org/8506024
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r9937 (c263a9e).

BUG=
TEST=

Review URL: http://codereview.chromium.org/8509015
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9946 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The return value of pthread_create is now checked to be 0.
Tests on MIPS boards had some silent and hard to find timeouts and errors related to this.
This ensures a proper error message and shutdown if a thread could not be started.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8497041
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9945 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/8509006
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

For now, MIPS targets are not included in the "all", "release", "debug" and corresponding ".check" convenience targets, but they can be built explicitly (e.g. "mips.release.check").

Review URL: http://codereview.chromium.org/8510014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9943 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This function is no longer needed.  It was only used (overly defensively)
when fetching the stack check stub for on-stack replacement patching.

R=vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8510013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: http://codereview.chromium.org/8505019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9941 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/8505007
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8510012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: http://codereview.chromium.org/8497045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8506015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=test/mjsunit/string-slices.js

Review URL: http://codereview.chromium.org/8510005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00