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danno@chromium.org 60267da6d9 MIPS: Cleanup handling of shifts: SHR can deoptimize only when its a shift by 0, all other shift never deoptimize.
Port r12373 (9fdde2ad)

Original commit message:
Fix DoDeferredNumberTagU to keep the value in xmm1 instead of xmm0 on x64.

xmm0 is not saved across runtime call on x64 because MacroAssembler::EnterExitFrameEpilogue preserves only allocatable XMM registers unlike on ia32 where it preserves all registers.

Cleanup handling of shifts: SHR can deoptimize only when its a shift by 0, all other shift never deoptimize.

Fix type inference for i-to-t change instruction. On X64 this ensures that write-barrier is generated correctly.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10876054
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-29 15:10:21 +00:00
benchmarks More fixes for V8 benchmark version 7. 2012-03-15 17:13:50 +00:00
build Correctly check for stack limit in JSON.stringify. 2012-10-25 12:18:24 +00:00
include Implement committed physical memory stats for Linux. 2012-10-22 16:33:10 +00:00
preparser Fix a bunch of implicit casts detected by the Win64 compiler 2012-06-19 13:45:30 +00:00
samples Fix compilation when disabling debugger support. 2012-07-05 16:23:14 +00:00
src MIPS: Cleanup handling of shifts: SHR can deoptimize only when its a shift by 0, all other shift never deoptimize. 2012-10-29 15:10:21 +00:00
test Treat leading zeros in JSON.parse correctly. 2012-10-29 12:01:29 +00:00
tools Initial JS stub implementation of Object.observe. Adds support for .object/.unobserve/.notify/.deliverChangeRecords. No delivery mechanism is implemented for end-of-microtask. 2012-10-25 14:53:26 +00:00
.gitignore Fixed directory ignorance involving symlinks. 2012-10-19 08:40:50 +00:00
AUTHORS Remove redundant jump to deoptimization (the jump already exists in DoCheckMapCommon) 2012-10-29 11:45:40 +00:00
ChangeLog Prepare push to trunk. Now working on version 3.14.6. 2012-10-22 13:09:01 +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 Fix typo in Makefile in ARM VFP support flag. 2012-10-22 10:00:28 +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 Kill off the SCons based build. 2012-10-18 13:07:41 +00:00