bmeurer@chromium.org [Wed, 31 Jul 2013 12:38:43 +0000 (12:38 +0000)]
Add common artifacts to .gitignore.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
21328004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15986
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
dslomov@chromium.org [Wed, 31 Jul 2013 12:10:49 +0000 (12:10 +0000)]
Reimplement TypedArray.set in Javascript.
Implement all cases for TypedArray.set in Javascript, except the case
where memmove is used. This makes it many times faster.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/
21353002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15985
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 10:56:46 +0000 (10:56 +0000)]
Avoid the use of set_type() in instruction constructors.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/
21348002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15984
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 10:47:44 +0000 (10:47 +0000)]
Get rid of HLinkObjectInList.
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/
21345002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15983
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Wed, 31 Jul 2013 10:08:05 +0000 (10:08 +0000)]
Remove special handling of fields in combination with elements transitions in Crankshaft.
Instead first try to keep ICs monomorphic if elements kinds generalize. If that fails, use standard polymorphic handling. The Try*PolymorphicAsMonomorphic methods will automatically produce code similar to the previous approach using CheckMapsWithTransitions.
BUG=
R=hpayer@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
21107004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15982
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 10:03:59 +0000 (10:03 +0000)]
Compile fix for older GCCs.
TBR=titzer@chromium.org
Review URL: https://codereview.chromium.org/
21142007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15981
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 09:38:37 +0000 (09:38 +0000)]
Fix HType handling for HConstant with external references.
We cannot use set_type() with HType::None() in the HConstant
constructor, since set_type() asserts that the new type is a
subtype of the previous one, but HType::None() is not a subtype
of HType::Tagged() which is the initial type set by the HValue
constructor.
This patch adds an optional type parameter to the HValue,
HInstruction and HTemplateInstruction constructors.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/
21317004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15980
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Wed, 31 Jul 2013 09:29:30 +0000 (09:29 +0000)]
Eagerly set the types of many kinds of hydrogen instructions.
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
21072002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15979
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Wed, 31 Jul 2013 09:16:31 +0000 (09:16 +0000)]
Add gate keeper logic to presubmit commit check.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
21338002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15978
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Wed, 31 Jul 2013 08:51:18 +0000 (08:51 +0000)]
Fix stale unhandlified value in JSObject::SetPropertyForResult.
R=danno@chromium.org
BUG=chromium:265894
Review URL: https://codereview.chromium.org/
21177003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15977
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 07:51:46 +0000 (07:51 +0000)]
Revert the latest set of platform changes.
Revert "Fix NaCl build."
Revert "Revert target arch detection."
Revert "Fix typo."
Revert "Simplify implementation of Mutex."
Revert "Fix for older clang releases that lack __has_extension."
Revert "Reland initial bits of "Implement correct OS and CC detection.""
TBR=danno@chromium.org,svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21095008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15976
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
dcarney@chromium.org [Wed, 31 Jul 2013 07:17:34 +0000 (07:17 +0000)]
make Intl non-enumerable
R=jochen@chromium.org, svenpanne@chromium.org
BUG=
Review URL: https://codereview.chromium.org/
21213003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15974
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
hpayer@chromium.org [Wed, 31 Jul 2013 07:17:03 +0000 (07:17 +0000)]
Free slots buffer entries when tearing down the heap.
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21216003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15973
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 07:08:52 +0000 (07:08 +0000)]
Fix NaCl build.
TBR=machenbach@chromium.org,svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21336002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15972
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 07:04:30 +0000 (07:04 +0000)]
Revert target arch detection.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21243004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15971
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
hpayer@chromium.org [Wed, 31 Jul 2013 07:03:16 +0000 (07:03 +0000)]
Allocation space decisions are precisely made in hydrogen.
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21089006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15970
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Wed, 31 Jul 2013 06:56:02 +0000 (06:56 +0000)]
Fix typo.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21333002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15969
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Wed, 31 Jul 2013 06:36:29 +0000 (06:36 +0000)]
Skip recently added test associated with bug id
BUG=v8:2815
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21044005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15968
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
haitao.feng@intel.com [Wed, 31 Jul 2013 00:19:32 +0000 (00:19 +0000)]
Introduce StackOperandForReturnAddress operand for X64 to access return address in the stack
R=danno@chromium.org
Review URL: https://codereview.chromium.org/
20628003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15967
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
haitao.feng@intel.com [Tue, 30 Jul 2013 23:59:55 +0000 (23:59 +0000)]
Introduce the SetFp function in StackHandler
The FP setting is different for X32 than the other platforms as
kFPOnStackSize is double the kPointerSize and we have to clear the
higher 32 bits to 0.
R=danno@chromium.org
Review URL: https://codereview.chromium.org/
20073004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15966
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
palfia@homejinni.com [Tue, 30 Jul 2013 22:28:54 +0000 (22:28 +0000)]
MIPS: Fix flaky mjsunit/harmony/generators-iteration test failure.
This fixes the result allocation in EmitCreateIteratorResult,
when a GC is required. The Runtime call returns the allocated
pointer in v0 register, but the rest of the function was
expected it in a0 register. Refactored the function to use v0 for
the result in the whole function.
BUG=
Review URL: https://codereview.chromium.org/
21244003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15965
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Tue, 30 Jul 2013 17:12:49 +0000 (17:12 +0000)]
Simplify implementation of Mutex.
Also moves Mutex to its own file mutex.{cc,h}.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21087012
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15964
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Tue, 30 Jul 2013 17:05:50 +0000 (17:05 +0000)]
Pipe a script's CORS status through V8 during compilation.
In order to properly sanitize exception data during a 'window.onerror'
handler, we need to know whether a script was served with proper CORS
headers at the time it was loaded into V8. This patch adds a single bool
to ScriptOrigin, and pipes that through the compiler to land on the
Script object. We can then retrieve the parameter when calling the
embedder's exception callback.
BUG=crbug.com/159566
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
20646006
Patch from Mike West <mkwst@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15963
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Tue, 30 Jul 2013 17:00:05 +0000 (17:00 +0000)]
Reland "Compilation type and state allocate an unnecessary Smi on v8::Script" (r15940).
It turns out that this change is not related to the test failures.
TBR=danno@chromium.org
Review URL: https://codereview.chromium.org/
21256003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15962
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Tue, 30 Jul 2013 16:33:58 +0000 (16:33 +0000)]
Mark maps as unstable if their instances potentially transition away.
Use this as a prerequisite for adding code dependencies.
R=ulan@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
21095005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15961
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Tue, 30 Jul 2013 16:33:08 +0000 (16:33 +0000)]
Add new Harmony methods to String.prototype object.
String.prototype.repeat
String.prototype.startsWith
String.prototype.endsWith
String.prototype.contains
http://people.mozilla.org/~jorendorff/es6-draft.html
BUG=v8:2796,v8:2797,v8:2798,v8:2799
TEST=mjsunit/string-repeat,mjsunit/string-startswith,mjsunit/string-endswith,mjsunit/string-contains
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21014007
Patch from Ioseb Dzmanashvili <ioseb.dzmanashvili@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15960
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Tue, 30 Jul 2013 14:49:44 +0000 (14:49 +0000)]
Fix for older clang releases that lack __has_extension.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21237002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15959
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Tue, 30 Jul 2013 13:30:03 +0000 (13:30 +0000)]
Don't generate a shift left by one if can deoptimize on ia32 and arm and mips.
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
21196006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15958
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
danno@chromium.org [Tue, 30 Jul 2013 11:24:11 +0000 (11:24 +0000)]
Revert 15940: "Compilation type and state allocate an unnecessary Smi on v8::Script."
Due to Mozilla test failures on Win32 debug
TBR=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21062004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15957
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
danno@chromium.org [Tue, 30 Jul 2013 11:08:56 +0000 (11:08 +0000)]
Prepare push to trunk. Now working on version 3.20.12.
R=ulan@chromium.org
Review URL: https://codereview.chromium.org/
21103009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15954
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Tue, 30 Jul 2013 10:36:58 +0000 (10:36 +0000)]
Reland initial bits of "Implement correct OS and CC detection."
This adds the OS and CC detection and cleans up the globals.h to
some degree. It also places all of the C++11 feature detection into
globals.h.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21223003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15953
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Tue, 30 Jul 2013 10:25:20 +0000 (10:25 +0000)]
Turn mark deoptimize on undefined into a proper HPhase.
This patch also removes the implicit recursion on phi operands,
using a loop and a worklist instead, to avoid potential stack
overflows.
R=dslomov@chromium.org
Review URL: https://codereview.chromium.org/
21065003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15952
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Tue, 30 Jul 2013 09:28:55 +0000 (09:28 +0000)]
Fix many tests that try to force an OSR by checking OptimizationStatus() to instead check OptimizationCount().
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21221003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15951
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Tue, 30 Jul 2013 09:06:42 +0000 (09:06 +0000)]
HasNonSmiUse should ignore tagged uses
R=verwaest@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
21105006
Patch from Weiliang Lin <weiliang.lin2@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15950
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Tue, 30 Jul 2013 08:52:26 +0000 (08:52 +0000)]
Run some skipped tests again after resolved issue.
BUG=2795
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/
21220002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15949
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Tue, 30 Jul 2013 08:50:59 +0000 (08:50 +0000)]
Adapt test expectations for blink test.
Also after giving it more time, this test times out only on the V8 waterfall under windows. It has an existing expectation for Win Debug, which holds now for all Win.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21083003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15948
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Tue, 30 Jul 2013 08:35:48 +0000 (08:35 +0000)]
Re-revert "Flush parallel recompilation queues on context dispose notification" (r15883).
R=danno@chromium.org
BUG=
Review URL: https://codereview.chromium.org/
21156009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15947
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Tue, 30 Jul 2013 07:15:29 +0000 (07:15 +0000)]
Repair test expectations for webkit test.
When adding the new tests in https://codereview.chromium.org/
21070002/ the tabs in .js files were automatically replaced with spaces (for presubmit to work).
This replaces the tabs also in a test expectation file for the output to match again.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/
21156008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15946
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
svenpanne@chromium.org [Tue, 30 Jul 2013 07:05:15 +0000 (07:05 +0000)]
Prepare some ValueOf renamings.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
20992005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15945
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yurys@chromium.org [Tue, 30 Jul 2013 07:01:16 +0000 (07:01 +0000)]
Simplify sampling rate calculation
Sampling rate is now calculated as total number of samples divided by profiling time in ms. Before the patch the sampling rate was updated once per 100ms which doesn't have any obvious advantage over the simpler method.
Also we are going to get rid of the profile node self and total time calculation in the v8 CPU profiler and only expose profiling start/end time for CpuProfile and number of ticks on each ProfileNode and let clients do all the math should they need it.
BUG=None
R=bmeurer@chromium.org, loislo@chromium.org
Review URL: https://codereview.chromium.org/
21105003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15944
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Tue, 30 Jul 2013 06:36:48 +0000 (06:36 +0000)]
Migrate more tests from blink repository.
All these tests had <script> tags with additional JS code. All embedded script code is (automatically) concatenated with existing .js files into one .js test file per test.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21070002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15943
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
haitao.feng@intel.com [Tue, 30 Jul 2013 01:01:04 +0000 (01:01 +0000)]
This patch is to support Vtune on Android platform.
The Vtune API provides the support for Android platform. So we fix the
compilation issue and it works on Android platform.
R=danno@chromium.org
Review URL: https://codereview.chromium.org/
20688002
Patch from Chunyang Dai <chunyang.dai@intel.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15942
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yurys@chromium.org [Mon, 29 Jul 2013 19:02:16 +0000 (19:02 +0000)]
Remove unused methods from RuntimeProfiler
Also removed Logger fields that used to be used for writing compressed logs.
BUG=None
R=bmeurer@chromium.org, loislo@chromium.org
Review URL: https://codereview.chromium.org/
20768002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15941
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Mon, 29 Jul 2013 17:59:02 +0000 (17:59 +0000)]
Compilation type and state allocate an unnecessary Smi on v8::Script.
This patch combines them into a single field, and adjusts the accessors
and setters to take the enum type directly, rather than converting to and
from a Smi value.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
20758002
Patch from Mike West <mkwst@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15940
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Mon, 29 Jul 2013 17:17:19 +0000 (17:17 +0000)]
Revert "Smi-support for HSar."
Reverting https://chromiumcodereview.appspot.com/
21049003
R=mstarzinger@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
21076003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15939
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Mon, 29 Jul 2013 17:07:28 +0000 (17:07 +0000)]
Smi-support for HSar.
BUG=
R=mvstanton@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
21049003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15938
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
dslomov@chromium.org [Mon, 29 Jul 2013 14:00:06 +0000 (14:00 +0000)]
Revamp v8_optimized_debug options
This patch changes the definition of v8_optimized_debug==1 to match the release-mode compiler optimization settings (generally, going from -O1 to -O3 on Linux, similar switches for Mac/Win). This produces a minor speed up on Linux, but significant speedups on Mac and Win. This may make it much harder to debug, though.
It also adds a v8_optimized_debug==2 that, in addition to the compiler optimizations, undef's DEBUG and defines DEBUG. This leaves V8_ENABLE_CHECKS alone (so that the assertions are still enabled), but otherwise basically matches a release mode build.
Builds with v8_optimized_debug==2 roughly match a Release mode build for speed; the V8_ENABLE_CHECKS checks appear to have minimal performance impact (maybe 5-10%, unlike what was previously thought). In addition, switching from the previous optimization settings makes a significant improvement on Mac and Win (50% or more), and switching from DEBUG to NDEBUG makes a significant improvement (another 50% or more).
Note that using v8_optimized_debug==2 may also cause some v8 tests to fail. This is currently is believed to be acceptable.
R=machenbach@chromium.org
BUG=254188
Review URL: https://codereview.chromium.org/
19384011
Patch from Dirk Pranke <dpranke@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15937
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 13:56:51 +0000 (13:56 +0000)]
This adds generic support for ExternalReferences in Hydrogen (and Lithium), as required for AddIncrementCounter.
R=danno@chromium.org, titzer@chromium.org
Review URL: https://codereview.chromium.org/
19562003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15936
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
svenpanne@chromium.org [Mon, 29 Jul 2013 12:37:55 +0000 (12:37 +0000)]
Added unit tests for the slightly confusing Boolean/BooleanObject API.
Just for documenting the status quo. As discussed offline, we should
probably rename/deprecate a few things:
NumberObject::NumberValue() => NumberObject::ValueOf()
BooleanObject::BooleanValue() => BooleanObject::ValueOf()
StringObject::StringValue => StringObject::ValueOf()
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
21013003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15935
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Mon, 29 Jul 2013 12:35:43 +0000 (12:35 +0000)]
Fix IsDeletable() for HStringAdd, HStringCharCodeAt, HStringCharFromCode.
BUG=
R=mstarzinger@chromium.org, svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20241005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15934
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mvstanton@chromium.org [Mon, 29 Jul 2013 12:22:34 +0000 (12:22 +0000)]
Fix: Need to remove function type feedback between stress stages in
release build
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
20987005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15933
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 12:12:39 +0000 (12:12 +0000)]
Revert new OS and CC detection and related changes since r15923.
Revert "Attempt to fix leftover test breakage on Mac."
Revert "Fix d8 build error when V8_SHARED is unset on Linux."
Revert "Fix V8_GNUC_PREREQ macro."
Revert "Fix typo."
Revert "Implement correct OS and CC detection."
TBR=svenpanne@chromium.org,danno@chromium.org
Review URL: https://codereview.chromium.org/
21022003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15932
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
danno@chromium.org [Mon, 29 Jul 2013 11:57:42 +0000 (11:57 +0000)]
Fix HasResult method of LTemplateInstruction to properly handle LCheckSmi
LCheckSmi sometimes has a result register and sometimes not, even though its
LTemplateInstruction alwasys has room for one. Debug output use HasResult to
determine whether it was ok to de-ref result(), but HasResult doesn't check for
the case where LTemplateInstruction has a result but it's NULL.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21037004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15931
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
danno@chromium.org [Mon, 29 Jul 2013 11:56:45 +0000 (11:56 +0000)]
Make it easier to get JS stack crawls from gdb
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/
21060002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15930
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mvstanton@chromium.org [Mon, 29 Jul 2013 11:50:39 +0000 (11:50 +0000)]
Fix for V8 issue 2795: Check fails with deopt for mjsunit/array-store-and-grow
(https://code.google.com/p/v8/issues/detail?id=2795)
The reason is when allocating and building arrays in hydrogen we need to ensure
we do any int32-to-smi conversions BEFORE the allocation. These conversions can
at least theoretically deoptimize. If this happens before all the fields of the
newly allocated object are filled in, we will have a corrupted heap.
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
20726002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15929
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 11:38:34 +0000 (11:38 +0000)]
Attempt to fix leftover test breakage on Mac.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21030003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15928
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 10:23:07 +0000 (10:23 +0000)]
Fix d8 build error when V8_SHARED is unset on Linux.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21053002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15927
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 09:56:34 +0000 (09:56 +0000)]
Fix V8_GNUC_PREREQ macro.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21049004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15926
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Mon, 29 Jul 2013 09:42:57 +0000 (09:42 +0000)]
Remove Uninitialized from HType.
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
20711002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15925
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 09:29:00 +0000 (09:29 +0000)]
Fix typo.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21045002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15924
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 09:19:10 +0000 (09:19 +0000)]
Implement correct OS and CC detection.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20734002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15923
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 09:12:16 +0000 (09:12 +0000)]
The compiled_transitions flag was enabled for quite some time now and seems to work out quite well, so time has come to remove the obsolete code paths and remove the unused methods.
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/
18034024
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15922
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 08:33:57 +0000 (08:33 +0000)]
Really fix break in r15919 now.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21040002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15921
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 08:07:52 +0000 (08:07 +0000)]
Fix break in r15919.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
21029003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15920
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 07:50:56 +0000 (07:50 +0000)]
Properly implement OS::GetRandomMmapAddr() for Win32.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20953002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15919
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
danno@chromium.org [Mon, 29 Jul 2013 07:45:01 +0000 (07:45 +0000)]
Prepare push to trunk. Now working on version 3.20.11.
R=ulan@chromium.org
Review URL: https://codereview.chromium.org/
20987004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15916
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Mon, 29 Jul 2013 07:43:32 +0000 (07:43 +0000)]
Ignore all toplevel files starting with an underscore.
R=danno@chromium.org
Review URL: https://codereview.chromium.org/
20929004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15915
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
palfia@homejinni.com [Sat, 27 Jul 2013 01:07:53 +0000 (01:07 +0000)]
MIPS: Fix debug mode webkit failures.
* Handles SMI case in EmitLoadRegister correctly.
* Fix minor mistake in the assembler.
BUG=v8:2808
TEST=webkit/dfg-dead-min-two-args,webkit/fast/js/excessive-comma-usage
Review URL: https://codereview.chromium.org/
20801003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15914
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
palfia@homejinni.com [Fri, 26 Jul 2013 23:56:03 +0000 (23:56 +0000)]
MIPS: Add Smi support to Shl
Port r15910 (
8e65c434)
BUG=
Review URL: https://codereview.chromium.org/
20808004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15913
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
jkummerow@chromium.org [Fri, 26 Jul 2013 14:58:30 +0000 (14:58 +0000)]
Add regression test for recently fixed bug
BUG=chromium:258519
R=machenbach@chromium.org
Review URL: https://codereview.chromium.org/
20732002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15912
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
loislo@chromium.org [Fri, 26 Jul 2013 13:50:23 +0000 (13:50 +0000)]
Logger: introduce abstract interface for CodeEvent listeners.
New abstract class CodeEventListener was created.
CodeEventLogger which is the base class for Jit, LowLevel
and CodeAddressMap loggers was inherited from CodeEventListener.
CodeAddressMap class was moved to serializer.cc because serializer is the only user for it. Actually it collects code names and pushes them to the standard log as SnapshotCodeNameEvent. So I extracted this code into separate function CodeNameEvent. It happens that this method works only when Serializer serializes an object. So I added direct log call there.
CodeEventLogger class declaration was moved to the header
because CodeAddressMap needs it.
The code for the nested class CodeEventLogger::NameBuffer was left in the cc file.
CpuProfiler now is inherit CodeEventListener but not used
the loggers infrastructure yet due to the complex initialization schema. I'd like to fix that in a separate cl.
BUG=none
TEST=current test set.
R=yangguo@chromium.org, yurys@chromium.org
Review URL: https://codereview.chromium.org/
19724007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15911
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Fri, 26 Jul 2013 13:35:44 +0000 (13:35 +0000)]
Add Smi support to Shl
R=mvstanton@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
20323002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15910
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yurys@chromium.org [Fri, 26 Jul 2013 13:18:56 +0000 (13:18 +0000)]
Remove --prof-auto flag
There is already --prof-lazy flag which should be enough.
BUG=None
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/
20482003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15909
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Fri, 26 Jul 2013 12:34:46 +0000 (12:34 +0000)]
Disable mjsunit test when parallel recompilation is not available.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/
20573003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15907
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yangguo@chromium.org [Fri, 26 Jul 2013 12:32:06 +0000 (12:32 +0000)]
Do not allow external strings in old pointer space.
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/
20723002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15906
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Fri, 26 Jul 2013 12:06:22 +0000 (12:06 +0000)]
Fix Smi-based MathMinMax on x64, and reenable smi mode.
BUG=
R=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
20706002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15905
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Fri, 26 Jul 2013 11:39:58 +0000 (11:39 +0000)]
Add webkit tests to deopt fuzzer portfolio.
Two failing tests are skipped and added to an existing bug report.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
20708002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15904
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Fri, 26 Jul 2013 11:37:54 +0000 (11:37 +0000)]
Regression test for existing bug in String::MakeExternal.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/
20713002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15903
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yangguo@chromium.org [Fri, 26 Jul 2013 11:28:08 +0000 (11:28 +0000)]
Lazy call to custom stack trace formatting using Error.prepareStackTrace.
This enables custom stack trace formatting for stack overflow.
A consequence is that stack trace formatting is now easily observable,
but we already established that the default stack trace formatting can
be observed anyways. It is only triggered by the .stack getter, and
it has to be explicitly called, (e.g. not implicitly after GC).
R=mstarzinger@chromium.org
BUG=v8:2559
Review URL: https://codereview.chromium.org/
20692002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15902
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Fri, 26 Jul 2013 11:22:25 +0000 (11:22 +0000)]
Rebaseline webkit test with correct assumptions.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20691002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15901
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Fri, 26 Jul 2013 10:40:00 +0000 (10:40 +0000)]
Revert "Check that ExternalString objects get aligned resources" (r15894).
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
20703002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15898
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
jkummerow@chromium.org [Fri, 26 Jul 2013 09:22:45 +0000 (09:22 +0000)]
Prepare push to trunk. Now working on version 3.20.10.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/
20697002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15895
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Fri, 26 Jul 2013 09:02:34 +0000 (09:02 +0000)]
Check that ExternalString objects get aligned resources.
R=hpayer@chromium.org
Review URL: https://codereview.chromium.org/
20305004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15894
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
jkummerow@chromium.org [Fri, 26 Jul 2013 09:00:43 +0000 (09:00 +0000)]
Disable Smi representation support for HMathMinMax
because it's incomplete on x64.
BUG=v8:2808
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/
20690002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15893
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Fri, 26 Jul 2013 09:00:07 +0000 (09:00 +0000)]
Inline platform-tls*.h files into platform.h.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20684002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15892
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
palfia@homejinni.com [Thu, 25 Jul 2013 19:57:10 +0000 (19:57 +0000)]
MIPS: Adding Smi support to Add, Sub, Mul, and Bitwise
Port r15879 (
ec1e278b)
BUG=
Review URL: https://codereview.chromium.org/
20407002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15891
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
palfia@homejinni.com [Thu, 25 Jul 2013 19:55:55 +0000 (19:55 +0000)]
MIPS: New array bounds check elimination pass (focused on induction variables and bitwise operations).
Port r15866 (
52e8581c)
BUG=
Review URL: https://codereview.chromium.org/
20393002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15890
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
machenbach@chromium.org [Thu, 25 Jul 2013 19:54:24 +0000 (19:54 +0000)]
Migrate more tests from blink repository.
The stand-alone test driver is changed a bit:
- Don't use the errorMessage list. It is used differently in the embedded driver. There it collects parser errors - instead of failure messages.
- Remove html links in description texts. Some test descriptions print a web reference.
The migrated tests fall into 3 categories:
1. Tests outside fast/js
2. Tests that print FAIL messages (and also expect those) - these tests should be examined later if they make sense at all
3. Tests with html links in the test description
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
20280003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15889
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
jochen@chromium.org [Thu, 25 Jul 2013 16:01:02 +0000 (16:01 +0000)]
Put object templates of the i18n extension on the heap object.
Using function local statics doesn't work, as we need the templates per
isolate.
I'm not #ifdef'ing the definitions out, because kEmptyStringRootIndex
changes depending on whether the two additional slots are present or
not.
BUG=v8:2745
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/
20299002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15888
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
m.m.capewell@googlemail.com [Thu, 25 Jul 2013 15:04:38 +0000 (15:04 +0000)]
ARM: Make double registers low/high safe
This patch prevents taking the low/high part of a double-precision VFP register that has no corresponding single-precision VFP registers.
BUG=none
TEST=Added to test-disasm-arm.cc, test-assembler-arm.cc
Review URL: https://codereview.chromium.org/
19560003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15885
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
jkummerow@chromium.org [Thu, 25 Jul 2013 15:04:21 +0000 (15:04 +0000)]
Fix JSArray-specific length lookup in polymorphic array handling
BUG=chromium:263276
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/
20295005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15884
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
yangguo@chromium.org [Thu, 25 Jul 2013 15:01:23 +0000 (15:01 +0000)]
Reland "Flush parallel recompilation queues on context dispose notification."
BUG=
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
19500022
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15883
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
mstarzinger@chromium.org [Thu, 25 Jul 2013 14:11:53 +0000 (14:11 +0000)]
Make standalone D8 trace to single hydrogen.cfg file.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/
20204005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15882
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Thu, 25 Jul 2013 12:22:23 +0000 (12:22 +0000)]
Remove support for smi-based keyed accesses on 64bit.
R=mvstanton@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
20298002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15881
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
hpayer@chromium.org [Thu, 25 Jul 2013 12:10:45 +0000 (12:10 +0000)]
Ignore external strings in old pointer space migration invariant check.
BUG=
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/
20142008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15880
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
verwaest@chromium.org [Thu, 25 Jul 2013 11:53:38 +0000 (11:53 +0000)]
Adding Smi support to Add, Sub, Mul, and Bitwise
R=svenpanne@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
20070005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15879
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
bmeurer@chromium.org [Thu, 25 Jul 2013 09:49:28 +0000 (09:49 +0000)]
Don't duplicate OS::ActivationFrameAlignment() for every POSIX platform.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20283002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15876
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
titzer@chromium.org [Thu, 25 Jul 2013 09:37:52 +0000 (09:37 +0000)]
Move representation into HObjectAccess and remove from HLoadNamedField and HStoreNamedField.
BUG=
R=danno@chromium.org
Review URL: https://codereview.chromium.org/
18503006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15875
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bmeurer@chromium.org [Thu, 25 Jul 2013 09:28:21 +0000 (09:28 +0000)]
Drop redundant GetRandomMmapAddr() in platform-openbsd.cc.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20284002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15874
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bmeurer@chromium.org [Thu, 25 Jul 2013 09:16:39 +0000 (09:16 +0000)]
Don't duplicate OS::CpuFeaturesImpliedByPlatform for every POSIX platform.
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
20179004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15873
ce2b1a6d-e550-0410-aec6-
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