This patch adds common infrastructure for fast TLS support and
implementation on win32. More implementations will be added soon.

Fast TLS is controlled by V8_FAST_TLS define which is enabled by
default in our gyp and scons builds. The scons build has
fasttls={on,off} option so that we can see the effects of slow TLS
when needed.

Review URL: http://codereview.chromium.org/6696112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch by Dmitry Lomov.

Code review: http://codereview.chromium.org/6737003/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7374 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6736027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6696109

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7372 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch by Dmitry Lomov.

Original review: http://codereview.chromium.org/6731030/

TBR=ager@chromium.org

Review URL: http://codereview.chromium.org/6713128

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The use of sizeof on FrameDescription to get to the additional allocated memory for the frame content relies on the padding of the FrameDescription. On IA32 Linux the FrameDescription is not padded but on ARM Linux it is padded to become 8 byte aligned. With a snapshot generated with the ARM simulator on IA32 Linux that contains one or more of the deoptimization tables the deoptimization did not work as the access to the frame content was one off between the C++ code and the generated code.

R=ager@chromium.org
Review URL: http://codereview.chromium.org/6744004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7369 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make MJSUnit able to distinguish 0 and -0.

Review URL: http://codereview.chromium.org/6688062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6696107

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Do not emit call to the MathPowStub when SSE2 is not available because it requires SSE2.

Review URL: http://codereview.chromium.org/6736006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Was broken since isolates merge.

Review URL: http://codereview.chromium.org/6676144

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6730054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7362 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=karlklose@chromium.org
BUG=1275
TEST=

Review URL: http://codereview.chromium.org/6713125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The previous implementation attempted to keep track of the needed
relocation size for deoptimization while generating the optimized
code. That was error prone. This patch moves the relocation resizing
to the deoptimizer as the last step of creating an optimized code
object.

The down side to this approach is that two relocation information byte
arrays are created for all optimized functions that do not have enough
relocation space for lazy deoptimization.

R=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/6730050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

In that case print 0 instead of NaN for normalized time and bytes allocated.

R=kmillikin@chromium.org
Review URL: http://codereview.chromium.org/6696070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7359 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

side is a constant.

TEST=none
BUG=none

Patch by Rodolph Perfetta from ARM Ltd.

Review URL: http://codereview.chromium.org/6730029/


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7358 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none
TEST=none
TBR=ager@chromium.org

Review URL: http://codereview.chromium.org/6732038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7355 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add specialized hydrogen and lithium instructions to support loading and storing to external arrays.

Review URL: http://codereview.chromium.org/6656001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7354 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6733030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch by Dmitry Lomov.

Original review: http://codereview.chromium.org/6715016/

TBR=dimich

Review URL: http://codereview.chromium.org/6730031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6733024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6729016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7345 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The dependency flags of instructions depending on a previous check have to
be a super-set of the flags of the check instructions.
Review URL: http://codereview.chromium.org/6730025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6676111

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix the shell to not use functions from the v8::internal namespace when building with V8 in a shared library.

Remove the v8_preparser library. The dependencies for this target needs to be resolved after isolates have landed.
Review URL: http://codereview.chromium.org/6696067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7337 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change adds a new IR instruction for polymorphic loads. It performs
map compares and loads in one IR instruction instead of splitting each
load into a graph of map-compares and field loads.
 
The advantage is a smaller IR and less basic blocks, plus it allows to
do GVN on polymorphic loads.
Review URL: http://codereview.chromium.org/6708085

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7336 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6711063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7333 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Was not done for runtime calls and for recursive calls.

Only ia32 for now. We need to refactor x64 and look into arm as well.

R=sgjesse@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6728001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This saves about 700K of zone allocation when compiling the V8
benchmark suite.

Review URL: http://codereview.chromium.org/6707001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6705024
Patch from Peter Varga <pvarga@inf.u-szeged.hu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7329 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6717018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6705023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7326 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ager@chromium.org
Review URL: http://codereview.chromium.org/6723015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Get rid of the COUNTERS macro and fetch the counters from a locally
stored isolate instead.

R=karlklose@chromium.org

Review URL: http://codereview.chromium.org/6723014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6727021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7320 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Ensure that all objects that had the same map before attaching an external array have the same map once the external array is attached.

BUG=75639
TEST=fast/canvas/webgl/uninitialized-test.html

Review URL: http://codereview.chromium.org/6685073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=1266
TEST=

Review URL: http://codereview.chromium.org/6727018
Patch from Peter Varga <pvarga@inf.u-szeged.hu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7317 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6723012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7316 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Access to an ExternalReference in non-serializable code will try to use
an offset relative to the root-array register.
Since the root-array is in the Heap object, and the Heap object is in
the Isolate object, there's a good chance that any external data field
is within a 32-bit offset of the root array register.
It falls back on the original behavior if the serializer is enabled,
if the root register isn't initialized or if the offset is not representable
as a 32-bit value.

Review URL: http://codereview.chromium.org/6716018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6725014
Patch from Peter Varga <pvarga@inf.u-szeged.hu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7314 ce2b1a6d-e550-0410-aec6-3dcde31c8c00