We can only call malloc/free once per group and we can avoid scanning
through a list of NULLs if we keep unprocessed groups in the beginning.

I also changed the internal representation of implicit references to
hold a handle to the parent (instead of a direct pointer). The
prologue callback must not trigger a GC, but it's better to be safe.

Review URL: http://codereview.chromium.org/6800003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6799016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=vegorov@chromium.org

BUG=v8:1252
TEST=none

Review URL: http://codereview.chromium.org//6805013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6804015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7518 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6800018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Change caller_sp() to always point to the place after outgoing arguments.

Change deoptimizer to use absolute stack slot addresses for deferred HeapNumber's materialization.

(This is reapplication of r7504 with fix for mozilla testsuite failures).

Review URL: http://codereview.chromium.org/6677164

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7516 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6803010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6804008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6804007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Enter/exit frames with save doubles use these instructions instead of generating 16 load/store instructions.

R=karlklose@chromium.org, rodolph.perfetta@gmail.com

BUG=
TEST=

Review URL: http://codereview.chromium.org//6691057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove unneeded checks for SSE2 in X64 code.
Remove an unneeded check for SSE3 where the X64 code doesn't use SSE3 features.

Review URL: http://codereview.chromium.org/6793040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7508 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6691061
Patch from Jakob Kummerow <jkummerow@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6794041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Deoptimization infrastructure implicitly uses caller_sp related addressing (where caller_sp is expected to point below outgoing arguments).

TBR=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/6677160

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7505 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Change caller_sp() to always point to the place after outgoing arguments.

Review URL: http://codereview.chromium.org/6720049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It was only used in an ASSERT when reconstructing environments
at lithium translation time.
Review URL: http://codereview.chromium.org/6693062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7501 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

In addition, this change allows one additional level of inlining. 
Review URL: http://codereview.chromium.org/6720017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Simplify isolates access during stack iteration (WAS: Move SafeStackFrameIterator::active_count_...)

While trying to fix Mac and Windows versions for this change:
http://codereview.chromium.org/6771047/, I figured out, that we
already store an isolate in StackFrameIterator, so we can use it in
frame objects, instead of requiring it from caller.

I've changed iterators usage to the following scheme: whenever a
caller maintains an isolate pointer, it just passes it to stack
iterator, and no more worries about passing it to frame content
accessors.  If a caller uses current isolate, it can omit passing it
to iterator, in this case, an iterator will use the current isolate,
too.

There was a special case with LiveEdit, which creates
detached copies of frame objects.

R=vitalyr@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6794019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6794047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7498 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch by Peter Varga.

Review URL: http://codereview.chromium.org/6793019/


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7496 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

All global stores are now supported in crankshaft by using the normal store IC when other optimizations are not possible due to the state of the global object.

R=fschneider@chromium.org

BUG=
TEST=

Review URL: http://codereview.chromium.org//6693066

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7495 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The target representation is already stored as part of HValue::representation().
Review URL: http://codereview.chromium.org/6794014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org

Review URL: http://codereview.chromium.org/6693060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6771058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7489 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6706018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Chromium builds with U_USING_ICU_NAMESPACE=0, so we need this.

Landing for thakis@chromium.org.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7487 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Crankshaft is now the default on all platforms. This is the first
patch on the way to removing the classic code generator from the
system.

This time with no removal of the crankshaft flag. --nocrankshaft is
not at all the same as --always-full-compiler which I had used instead
for testing. That was what caused timeouts on the buildbots because of
repeated attempts to optimize hot functions. It makes sense to keep
the crankshaft flag in case you want to run only with the full
compiler and with no adaptive compilation.

R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6759070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It broke the Mac build.

Sampler::SampleStack() can't use Isolate::Current() when called from
the sampler thread (from SampleContext). We have to pass the isolate
pointer.

TBR=mikhail.naganov@gmail.com

Review URL: http://codereview.chromium.org/6791014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7485 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6771052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ager@chromium.org,vitalyr@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6771047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

o Make ia32 macro assembler work without an isolate and use it in the
  custom memcpy creation code.
o Remove isolate-dependent code from the custom memcpy and modulo
  functions creation code.

Review URL: http://codereview.chromium.org/6788007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts r7469 which might have caused the timeouts on the buildbot.

TBR=ager@chromium.org

BUG=
TEST=

Review URL: http://codereview.chromium.org//6788009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6791011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts svn r7477.

BUG=
TEST=

Review URL: http://codereview.chromium.org/6760027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/6771049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Cleanup of X64 assembler.

Review URL: http://codereview.chromium.org/6764015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

That allows to find out a global context in which the object
was created.

Review URL: http://codereview.chromium.org/6759054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6760025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

In the cases where a global property cell cannot be used in the optimized code
use standard load ic to get the property instead of bailing out.

This is re-committing r7212 and r7215 which where reverted in r7239 with the addition of recoring the source position in the hydrogen code for the LoadGlobalCell instruction. To record that position an optional position field has been added to the variable proxy AST node.
Review URL: http://codereview.chromium.org/6758007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

After failing to read a non-existing file, the shell tried to execute the resulting empty program, which resulted in a null pointer dereference. This patch avoids execution of empty programs.

Review URL: http://codereview.chromium.org/6777005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00