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yangguo@chromium.org 2f36a51872 MIPS: Avoid handle dereference during graph optimization. 
Port r13475 (0076e1ee)

Original commit message:
With parallel recompilation enabled, objects made accessible by handles may
have changed between graph construction and graph optimization. Therefore
we must not assume that information on those objects remain the same between
those two phases. To police this, we forbid handle dereferencing during
graph optimization.
Exceptions to this rule are:
 - Dereferencing the handle to obtain the raw location of the object. This
   is safe since parallel recompilation acquires RelocationLock
 - Some places that dereference the handle for a type check. These are checked
   to be safe on a case-by-case basis.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/12049037
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-23 15:25:28 +00:00
benchmarks More fixes for V8 benchmark version 7. 2012-03-15 17:13:50 +00:00
build Remove support for Live Object List and inspector module. 2013-01-16 15:44:26 +00:00
include Added a workaround for Windows compilation problems related to V8EXPORT. 2013-01-23 12:04:55 +00:00
preparser Fix a bunch of implicit casts detected by the Win64 compiler 2012-06-19 13:45:30 +00:00
samples Make the Isolate parameter mandatory in Locker and Unlocker classes. 2013-01-18 07:20:17 +00:00
src MIPS: Avoid handle dereference during graph optimization. 2013-01-23 15:25:28 +00:00
test Correctly reset lastIndex in an RegExp object. 2013-01-23 12:28:16 +00:00
tools tools/run-tests.py: shlex.split() the value of --command-prefix 2013-01-23 11:41:56 +00:00
.gitignore git should ignore .d8_history (d8 readline history) 2012-11-13 21:43:38 +00:00
AUTHORS Add Makefile options to build for the Raspberry Pi (armv7=0, arm_fpu=vfp2). 2013-01-03 08:56:05 +00:00
ChangeLog Prepare push to trunk. Now working on version 3.16.9. 2013-01-23 13:40:51 +00:00
DEPS Pull more recent gyp. 2012-09-26 09:12:45 +00:00
LICENSE Update LICENSE file 2012-01-03 16:38:42 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
Makefile Remove support for Live Object List and inspector module. 2013-01-16 15:44:26 +00:00
Makefile.android Change the Android makefile to use GCC 4.6 instead of GCC 4.4.3. 2012-10-02 13:20:27 +00:00
OWNERS Add OWNERS file 2012-10-08 11:58:08 +00:00
PRESUBMIT.py Add PRESUBMIT script to V8 2012-10-08 13:49:57 +00:00
SConstruct Remove support for Live Object List and inspector module. 2013-01-16 15:44:26 +00:00