For objects which only have simple assignments of the form this.x = ...; a
specialized constructor stub is now generated. This generated code allocates the
object and fills in the initial properties directly. If this fails for some
reason code continues in the generic constructor stub which in turn might pass
control to the runtime system.

Added counter to see how many objects are constructed using a specialized stub.

The specialized stub is only implemented for ia32 architecture in this change.
For x64 and ARM the generic construct stub is used.

This is change is identical to http://codereview.chromium.org/174392 (committed in r2753 and reverted in r2754) except that a few parts have already been committed from http://codereview.chromium.org/173469 (committed in r2762).
Review URL: http://codereview.chromium.org/173470

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174519

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2763 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When copying a map always set the descriptor array to describe the pre-allocated properties, even when descriptors are to be dropped.

Added a test which otherwise failed with an assert on ARM in debug mode. The reason for it only surfasing on ARM is that the NewObject runtime function is always used for allocating new JSObjects on ARM.

This change includes a few parts of http://codereview.chromium.org/174392 needed to trigger the error.
Review URL: http://codereview.chromium.org/173469

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2762 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

made inline versions of some hot functions.  Changed api to use
internal Object pointers rather than void pointers.

Speeds up getElementById by ~7%.
Review URL: http://codereview.chromium.org/173348

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

limit in the roots array.
Review URL: http://codereview.chromium.org/174517

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174516

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

initialized.

Minor cleanups.

Review URL: http://codereview.chromium.org/173465

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove suspicious line from ARM simulator, which caused a compiler warning on Windows.
Review URL: http://codereview.chromium.org/173464

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2756 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174394

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/173349

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

For objects which only have simple assignments of the form this.x = ...; a specialized constructor stub is now generated. This generated code allocates the object and fills in the initial properties directly. If this fails for some reason code continues in the generic constructor stub which in turn might pass control to the runtime system.

Added counter to see how many objects are constructed using a specialized stub.

The specialized stub is only implemented for ia32 architecture in this change. For x64 and ARM the generic construct stub is used.
Review URL: http://codereview.chromium.org/174392

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/173340

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2751 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't copy the ENV variable from the users's external environment into
construction environments.  SCons uses this as a dictionary of environment
values for the commands it executes.

BUG=none
TEST=build with the variable ENV set in the user environment

Review URL: http://codereview.chromium.org/173294

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2750 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none
TEST=none

TBR=ager

Review URL: http://codereview.chromium.org/174386

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

after being idle for some time.

Remove the default argument from CollectAllGarbage.

Review URL: http://codereview.chromium.org/174302

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2748 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

timeout limit so it sometimes times out.

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/173271

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2747 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=yurys@chromium.org
Review URL: http://codereview.chromium.org/173268

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allow stepping in functions called using CallFunction stub. When Debug::PrepareStep is called to prepare 'step in' and current code target is CallFunction stub, the debugger will find function being called on the expression stack and flood it with one shot breakpoints.Related Chromium issue: http://code.google.com/p/chromium/issues/detail?id=17978
Review URL: http://codereview.chromium.org/159703

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

by using r10 to point to a list of common root objects.
This time we also disable a debugger test on ARM that
has never worked, but with this change sometimes
crashes.
Review URL: http://codereview.chromium.org/174317

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/173115

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174137

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reduce the amount of dates tested in date-parse test.  The test occasionally times out on ARM hardware.


Review URL: http://codereview.chromium.org/174316

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2741 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174219

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2740 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/173189

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2738 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

another post gc processing was trigger because of weak callbacks.

Review URL: http://codereview.chromium.org/174141


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2737 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When descriptor arrays where allocated with the initial map the handling of allocation failures was not correct. This could cause the map returned could possible have been collected.
Review URL: http://codereview.chromium.org/173188

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2736 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The assert when performing a push back on a two byte string was wrong.

Added a small regression test.
Review URL: http://codereview.chromium.org/173116

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

-fstrict-aliasing is enabled by mainline gcc at -O2 and higher, but in Apple
gcc, it must be enabled explicitly.  This results in a 1.5% improvement in V8
benchmark scores.

This also removes the -fno-exceptions and -fno-rtti settings from v8.gyp for
the Mac, and removes -fno-rtti from v8.gyp for Linux, because these settings
have become part of Chromium's common.gypi, included here, as of r23304 at the
latest.  The settings in v8.gyp have become redundant.
Review URL: http://codereview.chromium.org/174154

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

system can't currently process stacks produced by gcc -fomit-frame-pointer
properly.  The drawback outweighs the 2% performance improvement.  Once
the crash reporting system is able to handle this optimization, it should be
revisited.
Review URL: http://codereview.chromium.org/173123

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2733 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

not time out of the 64-bit version because of the larger heap.

Review URL: http://codereview.chromium.org/173118

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2732 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

built through the v8.gyp file. The optimization flags for
Mac and Linux (both gcc-based) builds are now much closer.
Review URL: http://codereview.chromium.org/173117

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2731 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/174138

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2730 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test did not actually run out of memory which the test treats as an
error.

Review URL: http://codereview.chromium.org/174136

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2729 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Our memory tests show little improvement by only growing by 50%.

Review URL: http://codereview.chromium.org/174133

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2727 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Ubuntu with GCC 4.4.

Review URL: http://codereview.chromium.org/174005


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2726 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Android system provides a unique feature that it sends a notification to the
browser in low memory condition, and the browser cleans up cache and frees
resources. Forcing a GC in low memory condition can free DOM objects and also
can shrink the old spaces.

This patch addresses the last comment in 
http://codereview.chromium.org/173016/show

	
Mads Ager 2009/08/19 17:24:23 
I would prefer to not use the flags to signal that a compacting collection is
requested.

TBR = ager
Review URL: http://codereview.chromium.org/173102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2725 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

while performing GlobalHandles::PostGarbageCollectionProcessing as those might be already deleted (in C++ sense).

Review URL: http://codereview.chromium.org/173060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2724 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The termination is achieved by throwing an exception that is uncatchable by JavaScript exception handlers.
Review URL: http://codereview.chromium.org/174056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/173054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00