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2503 Commits

Author SHA1 Message Date
verwaest@chromium.org
652b174cfc Merge verbatim descriptors from other (the descriptor of the map being updated) rather than this (descriptors of the most updated map found in the transition tree). 
BUG=v8:2863
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23676003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-28 12:37:14 +00:00
hpayer@chromium.org
4d7375ca98 Clear next map word when folding allocations into js arrays. 
BUG=
R=mstarzinger@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/22915007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-28 08:39:43 +00:00
plind44@gmail.com
b45fa06231 MIPS: Fix return-value from Array.push stub when pushing non-SMI value 
Load and update the arrays length in v0 to make sure the length gets
returned correctly when leaving the function.

Add new testcase.

TEST=mjsunit/array-push-non-smi-value

BUG=130022
R=jkummerow@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/23589002

Patch from fs <fs@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16377 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-28 05:23:51 +00:00
verwaest@chromium.org
788811244e Eliminate intentional conversion from Smi to Int32 in HMul 
If not all uses of arithmetic binary operation can be truncated to Smi, check if they can be truncated to Int32 which could avoid minus zero check

Fixed DoMulI on X64 to adopt correct operand size when the representation is Smi

Fixed DoMulI on ARM. Constant right operand optimization is based on Integer 32 instead of its representation.

BUG=
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22600005

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-27 13:55:00 +00:00
jkummerow@chromium.org
da037f9872 H-BuildIncrement should make use of available type feedback 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/22611009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-27 11:44:45 +00:00
jkummerow@chromium.org
caba24c813 Revert "Snapshot i18n Javascript code" and "Fix mjsunit/debug-script after r16298". 
This reverts r16298 and r16303 due to ChromeOS browser_tests failures ("Uncaught ReferenceError: Boolean is not defined" in --gtest_filter="FileDisplay/FileManagerBrowserTest.Test/0" and others)

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23414008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16336 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-26 17:00:58 +00:00
mstarzinger@chromium.org
e146b6e148 Fix replaying of captured objects during chunk building. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/22819011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16334 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-26 16:43:19 +00:00
jkummerow@chromium.org
11fd577261 Lower kInitialMaxFastElementArray constant to 95K 
to work around erroneous "illegal access" error on x64.

BUG=v8:2790
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/22877039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16324 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-26 13:04:05 +00:00
mvstanton@chromium.org
c9591f005e Store mode for keyed stores should be passed in from type feedback 
regardless of the map used in polymorphic stores.

BUG=
R=jkummerow@chromium.org, verwaest@chromium.org

Review URL: https://codereview.chromium.org/21058003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16323 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-26 12:28:08 +00:00
dcarney@chromium.org
ad9cc8e716 js accessor creation on Template 
R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/22903012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-26 11:59:14 +00:00
jochen@chromium.org
885c88e4d5 Fix mjsunit/debug-script after r16298 
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23102015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16303 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-23 13:45:24 +00:00
jochen@chromium.org
064c91be57 Snapshot i18n Javascript code 
BUG=v8:2745
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23304005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-23 13:24:48 +00:00
jochen@chromium.org
de7352db92 Temporarily disable optimization for StringWrappers to use native valueOf 
V8 stores this information directly in the map of the wrapper, however,
it is not invalidated when the prototype of the wrapper is changed, so
once the bit is set, it is no longer possible to override valueOf.

This bug is currently hidden in Chrome since the i18n extension always
modifies the String.prototype, and so the optimization never kicks in.
Disabling the optimization temporarily allows for snapshotting i18n now.

BUG=v8:2855
R=yangguo@chromium.org
TEST=mjsunit/regress/regress-2855.js

Review URL: https://codereview.chromium.org/23060030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16292 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-23 11:31:18 +00:00
rossberg@chromium.org
971df386b3 Fix scoping of function declarations in eval inside non-trivial local scope 
R=mstarzinger@chromium.org
BUG=v8:2594

Review URL: https://codereview.chromium.org/22901010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16286 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-23 09:25:37 +00:00
yangguo@chromium.org
be48c5ae26 Rename "parallel recompilation" to "concurrent recompilation". 
Also introduced macros for flag aliases for temporary backwards compatibility.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23014007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-22 16:14:37 +00:00
mstarzinger@chromium.org
0ecd03ab4c Fix hidden properties on object with frozen prototype. 
This fixes a corner-case where a frozen prototype with existing hidden
properties might prevent setting hidden properties on another object.

R=rossberg@chromium.org
BUG=v8:2829

Review URL: https://codereview.chromium.org/22799021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16276 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-22 13:51:32 +00:00
titzer@chromium.org
6f3169e571 Fix deoptimization bug, where recursive call can frighten and confuse the unwitting, simple, poor caveman that is Runtime_NotifyDeoptimized. 
BUG=274164
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23201016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-22 13:03:40 +00:00
verwaest@chromium.org
eb6cbe1486 Never clear debug-stub call ICs. Make a clear distinction between is_debug_stub 
used everywhere but the debugger, and IsDebugBreak, used by the debugger.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23361014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-22 12:16:00 +00:00
jkummerow@chromium.org
e814a9b96b Fix "Hole" leak in TryBuildConsolidatedElementLoad 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23361007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16262 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-21 15:31:03 +00:00
jkummerow@chromium.org
dea98eee53 Fix a bug in Div when all uses are truncating 
Refine the related test cases to cover truncating cases

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/22964004

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16249 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-20 13:57:01 +00:00
olivf@chromium.org
383a167279 Add X87 implementations for Integer32ToDouble, DoubleToI, DoubleToSmi 
Additionally refactor the X87Stack tracking

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/20781007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-20 13:01:54 +00:00
verwaest@chromium.org
d81af53131 Store copied value rather than the original double. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23262002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16208 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-16 15:43:42 +00:00
mstarzinger@chromium.org
3e4fbd0e85 Mark HStringCompareAndBranch as potentially causing GCs. 
This also adds a %SetAllocationTimout runtime function which helps to
write regression tests that need to trigger a GC at a certain point in
program execution.

R=hpayer@chromium.org
BUG=chromium:274438
TEST=mjsunit/regress/regress-crbug-274438

Review URL: https://codereview.chromium.org/22933006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16205 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-16 15:10:07 +00:00
danno@chromium.org
7aa3fedaab Fix Crankshafted CompareNil of constant values 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23198002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-14 16:13:58 +00:00
jkummerow@chromium.org
e71a91ca08 Fix Math.round/floor that had bogus Smi representation 
BUG=chromium:272564
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23022005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16185 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-14 12:14:08 +00:00
verwaest@chromium.org
169f5a9d7b Never hchange nan-hole to hole or hole to nan-hole. 
Only allow changing hole to nan if all uses allow undefined as nan.

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22152003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-14 08:54:27 +00:00
jkummerow@chromium.org
6f800f90ee Fix overflow check computation for Smi Phis 
BUG=v8:2836
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/22629011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-13 18:18:24 +00:00
jkummerow@chromium.org
b3b99969b0 Fix overwriting order of object literal properties for MATERIALIZED_LITERALs 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/22982005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-13 17:27:58 +00:00
yangguo@chromium.org
415b61e12e Fix bug in HPhi::SimplifyConstantInput 
R=jkummerow@chromium.org
BUG=269679

Review URL: https://codereview.chromium.org/23075003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-13 16:47:27 +00:00
verwaest@chromium.org
145f240060 Store doubles before calling into the elements transition stub on ARM 
BUG=
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22854011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-13 15:06:17 +00:00
yangguo@chromium.org
c52b7bba05 Fix regressions triggered by map invalidation during graph creation. 
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/22807003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16150 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-12 14:10:25 +00:00
yangguo@chromium.org
c0d1ba2ede Do not materialize uninitialized const for debug evaluate. 
R=prybin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/22822002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-12 13:35:46 +00:00
machenbach@chromium.org
cfb7ef44ca Ignore an unsuitable test under deopt fuzz. 
That test relies on certain optimization/deoptimization points and is therefore not useful for the deopt fuzzer.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/22475011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-12 08:59:42 +00:00
verwaest@chromium.org
ee53b0a5ed Make all load-named-fields depend on their map-check, unless explicitly ignored. 
BUG=
R=titzer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22555004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16139 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-09 18:40:10 +00:00
verwaest@chromium.org
3715358145 Replace LoadNamedFieldPolymorphic with explicit branches. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22213002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-09 14:04:47 +00:00
verwaest@chromium.org
19659646ca Fix smi-based math floor. 
BUG=chromium:270268
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22623007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-09 11:21:03 +00:00
verwaest@chromium.org
e5afd32129 Fix Object.freeze, Object.observe wrt CountOperation and CompoundAssignment. 
BUG=2774,2779
R=adamk@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22562004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-07 18:45:41 +00:00
jkummerow@chromium.org
371ac893f9 Check for empty handle in JSON stringifier 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/22420004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-07 16:34:13 +00:00
prybin@chromium.org
29bb553b1d Fix step in positions (include various calls and exclude current pc point), add a test 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/22198002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-07 12:27:22 +00:00
mstarzinger@chromium.org
63defee477 First implementation of allocation elimination in Hydrogen. 
This change implements a simple data-flow analysis pass over captured
objects to the existing escape analysis. It tracks the state of values
in the Hydrogen graph through CapturedObject marker instructions that
are used to construct an appropriate translation for the deoptimizer to
be able to materialize these objects again.

This can be considered a combination of scalar replacement of loads and
stores on captured objects and sinking of unused allocations.

R=titzer@chromium.org
TEST=mjsunit/compiler/escape-analysis

Review URL: https://codereview.chromium.org/21055011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-07 11:24:14 +00:00
yangguo@chromium.org
ef8d394f12 Re-reland "Flush parallel recompilation queues on context dispose notification" 
BUG=
R=hpayer@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/22379002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-07 09:33:09 +00:00
ulan@chromium.org
3511f7a428 Fix Array index dehoisting. 
BUG=264203
TEST=test/mjsunit/regress/regress-264203
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22314012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-06 16:38:39 +00:00
rossberg@chromium.org
5e121882c6 Remove test that causes illegal access now 
TBR=mstarzinger@chromium.org
BUG=265369

Review URL: https://codereview.chromium.org/22428002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16077 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-06 14:34:25 +00:00
rossberg@chromium.org
f56ad9cab7 Turn assert into runtime assertion to make fuzzer happy 
R=mstarzinger@chromium.org
BUG=265369

Review URL: https://codereview.chromium.org/22284009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16076 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-06 14:19:13 +00:00
rossberg@chromium.org
92bd4d1f2d I found this working on 
https://codereview.chromium.org/19541010/

The main problem is that if you called Object.getNotifier(obj) on an object, %SetObserved(object) would never get called on it, and thus it would be unobservable (new test added for this).

Additionally, Runtime::SetObserved was asserting obj->IsJSObject() which would fail if called on a proxy.

It just happens that our existing test always called getNotifier() before Object.observe on proxies, and thus we never previously attempted to transition the map of a proxy.

Both issues are now fixed and properly tested.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/21891008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-06 13:49:10 +00:00
dslomov@chromium.org
45f4b685bf Update Array Iterator to use numeric indexes 
At the last face-to-face meeting it was decided that we should use
numeric indexes for the Array Iterator values.

https://github.com/rwldrn/tc39-notes/blob/master/es6/2013-07/july-24.md#514-keys-entries-return-numbers-for-array-index-properties

BUG=v8:2818
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/21180008

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16072 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-06 13:10:07 +00:00
jkummerow@chromium.org
232a2c0d88 Regression test for issue 2813 / r16008 
BUG=v8:2813
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/21806002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-02 12:17:19 +00:00
svenpanne@chromium.org
bf71023ba5 Replaced unary negation by multiplication with -1. 
This fixes a deopt loop in the Epic Citadel demo and removes some code. Apart from that, this change is performance-neutral.

When we do something similar for BIT_NOT, the whole UnaryOp stuff can go away.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/21782002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-02 11:56:35 +00:00
mstarzinger@chromium.org
c87abd1117 Add new Harmony methods to Array.prototype object. 
Array.prototype.find
Array.prototype.findIndex

http://people.mozilla.org/~jorendorff/es6-draft.html

BUG=v8:2776,v8:2777
TEST=mjsunit/harmony/array-find,mjsunit/harmony/array-findindex
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/21079003

Patch from Ioseb Dzmanashvili <ioseb.dzmanashvili@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-02 10:57:48 +00:00
jkummerow@chromium.org
a47705644e Avoid redundant smi check for Math.abs 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/21180004

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-02 08:59:02 +00:00
hpayer@chromium.org
286fc963b2 Disable test in object observe because of bug 2774. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/21495004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-02 06:40:50 +00:00
dslomov@chromium.org
f62ffeef31 Calling Map etc without new should throw TypeError 
Even though we do not yet allow Map, Set, WeakMap and WeakSet to be
subclassed we need to ensure that we do not allow them to be [[Call]]ed
to allow them to be subclassed in the future.

BUG=v8:2819
R=dslomov@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/21400002

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-01 09:18:28 +00:00
verwaest@chromium.org
2af164f4d9 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
 2013-07-30 16:33:58 +00:00
mstarzinger@chromium.org
0627d433b0 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
 2013-07-30 16:33:08 +00:00
titzer@chromium.org
45d4afbde5 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
 2013-07-30 09:28:55 +00:00
machenbach@chromium.org
7696139437 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
 2013-07-30 08:52:26 +00:00
mstarzinger@chromium.org
3202e1d795 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
 2013-07-30 08:35:48 +00:00
titzer@chromium.org
37ee4a0369 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
 2013-07-29 12:35:43 +00:00
mvstanton@chromium.org
43e35a87e2 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
 2013-07-29 12:22:34 +00:00
mvstanton@chromium.org
e9cc78af7e 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
 2013-07-29 11:50:39 +00:00
bmeurer@chromium.org
709012021a 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
 2013-07-29 09:12:16 +00:00
jkummerow@chromium.org
3619dcf868 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
 2013-07-26 14:58:30 +00:00
machenbach@chromium.org
53c95353c9 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
 2013-07-26 12:34:46 +00:00
verwaest@chromium.org
565699669e 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
 2013-07-26 12:06:22 +00:00
yangguo@chromium.org
372763897d 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
 2013-07-26 11:28:08 +00:00
jkummerow@chromium.org
32e2e37230 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
 2013-07-25 15:04:21 +00:00
yangguo@chromium.org
14e205e9cf 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
 2013-07-25 15:01:23 +00:00
dslomov@chromium.org
a418b36b75 Make DataView setters throw when only offset is provided. 
Also fix typo in error message id.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/20030004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-24 17:35:15 +00:00
yangguo@chromium.org
eaedafad4b Restore test and behavior prior to deferred stack trace formatting. 
R=mstarzinger@chromium.org
TEST=stack-traces-overflow.js

Review URL: https://codereview.chromium.org/19805003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-24 12:16:02 +00:00
machenbach@chromium.org
a0734ba3af Add deopt fuzzer tool. 
Can be run as a stand-alone script like run-tests.

Executes first all tests of a given test suite to collect the maximum number of possible deopt points. Runs then a fuzzing phase with artificial deoptimizations triggered during testing.

Works for now with mjsunit and ia32 only.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/19931005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-24 12:04:29 +00:00
hpayer@chromium.org
6c83b7d6c1 Support double allocations when folding allocation. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19956002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 19:27:00 +00:00
verwaest@chromium.org
7e08f81e6d Also eliminate map checks with transitions. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19888006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15821 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 10:01:06 +00:00
verwaest@chromium.org
babce318d1 Eliminate map checks of constant values. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19954005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 09:18:42 +00:00
mstarzinger@chromium.org
232c55854f Add test case for issue 2793 about experimental natives. 
R=yangguo@chromium.org
BUG=v8:2793

Review URL: https://codereview.chromium.org/19948002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15810 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 18:18:55 +00:00
ulan@chromium.org
b2dd5c67f7 ARM: Ensure space for lazy deoptimization before calling IC. 
If IC triggers deoptimization, then subsequent patching might get invalid
target address that was overwritten.

R=verwaest@chromium.org
BUG=247688
TEST=mjsunit/regress/regress-247688.js

Review URL: https://chromiumcodereview.appspot.com/19972002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15808 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 17:21:41 +00:00
yangguo@chromium.org
cd41cb9b6d Turn on parallel recompilation for tests that assert optimization status. 
R=mvstanton@chromium.org
BUG=

Review URL: https://codereview.chromium.org/19807002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15793 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 09:16:33 +00:00
mstarzinger@chromium.org
ce81b0d3a8 ES6: Implement WeakSet 
WeakSets work similar to ordinary Sets but the value (which must be an
object) is held weakly.

This is available under --harmony-collections

BUG=v8:2785
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19678023

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 08:32:24 +00:00
rossberg@chromium.org
ac2b8c04f3 Proxies: Make 'with' work, plus minor other fixes 
Also fixes internal exception handling in several places of the runtime.

R=yangguo@chromium.org
BUG=v8:1543

Review URL: https://codereview.chromium.org/19384004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 14:07:23 +00:00
ulan@chromium.org
88a4b0d6ca Fix deopt in store with effect context. 
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19693004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 13:45:26 +00:00
rossberg@chromium.org
83d9e6e7ee Add support for explicit octal and binary integer literals 
http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.8.3

ES6 extends the numeric literals to support explicit support
for binary and octal literals using the following syntax:

  0b10101
  0o777

This is currently behind the flag, --harmony-numeric-literals

BUG=2783
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/19300002

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15772 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 09:57:35 +00:00
verwaest@chromium.org
be472d82fd Fix wrong bailout id in polymorphic stores. 
BUG=chromium:259787
R=titzer@chromium.org, ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19528005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15763 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 08:45:47 +00:00
mstarzinger@chromium.org
3eded2c06c Fix %NeverOptimizeFunction runtime call. 
The current usage of this runtime function is broken as it does not
prevent inlining of the affected function but rather bails out from the
whole unit of compilation after trying to inline affected functions.
This simplifies said runtime function to avoid accidental misuse.

R=titzer@chromium.org
TEST=mjsunit/never-optimize

Review URL: https://codereview.chromium.org/19776006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15762 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 08:25:44 +00:00
machenbach@chromium.org
0288214530 Disable some tests for nacl runs. 
These tests fail with the nacl/v8 builders.

Patch from bradchen@chromium.org.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/19769002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-18 12:21:46 +00:00
svenpanne@chromium.org
b951f03cee Fixed type feedback in presence of negative lookups. 
To fix the issue at hand regarding constant function calls and perhaps
other hidden issues regarding negative lookups, we basically add a
"marker instruction", just for harvesting purposes. Our type feedback
oracle is really, really fragile, we should better switch to some more
explicit and robust scheme soon.

BUG=chromium:252797
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19588002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15741 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-18 09:12:44 +00:00
yangguo@chromium.org
9d6445cf32 Do not materialize context-allocated values for debug-evaluate. 
BUG=259300
R=ulan@chromium.org, verwaest@chromium.org

Review URL: https://codereview.chromium.org/19569003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15727 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 15:29:00 +00:00
jkummerow@chromium.org
22f2fd8397 Synchronize Compare-Literal behavior in FullCodegen and Hydrogen 
BUG=chromium:260345
R=danno@chromium.org

Review URL: https://codereview.chromium.org/19582002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 13:13:38 +00:00
mvstanton@chromium.org
7632a311aa Some tests involving AllocationSites are failing in GcStress test mode. 
The reason is that an AllocationMemento associated with an array only
lives for one gc (it is unrooted). So an excess of garbage collections
in these tests cause the Memento to be lost, and expected behavior
can't be guaranteed.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/19544002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 11:42:32 +00:00
bmeurer@chromium.org
410b4b2db4 Reland "Turn ElementsTransitionAndStore stub into a HydrogenCodeStub". 
Fix the invalid array length check, replacing it with a check of
the elements pointer similar to TransitionElementsKindStub.
Refactor common code from ElementsTransitionAndStoreStub and TransitionElementsKindStub into BuildTransitionElementsKind() helper method.
Add test case for the MD5 computation that used to crash before,
and a small test case for the specific issue.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/19367003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 11:37:20 +00:00
dslomov@chromium.org
517cbe4dd3 Add BYTES_PER_ELEMENT property to constructors of typed arrays. 
ES6 does not prescribe it, but both Blink and Firefox have it.

Also does a small rename of parameter in test.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/19562002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15712 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 11:16:07 +00:00
bmeurer@chromium.org
a72b5d6c4d Fix invalid array length check in TransitionElementsKindStub. 
The stub used to check the length of the JS array to see if
there's a need to duplicate the elements backing store. This
way it will not duplicate the elements array when going from
double to object even if the elements array is not the empty
fixed array. Later on it will then store pointers into a
FixedDoubleArray.

The native code stub used to check whether elements points to
the empty_fixed_array singleton instead of testing the length.
The Hydrogen stub does that as well now.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/19289009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 08:32:28 +00:00
dslomov@chromium.org
11a38ed875 Throw if first argument to TypedArray.set is a number. 
Further refinement to semantics that I have missed in previous change.
Both Blink and Firefox are permissive with arguments to .set method.
However, when first argument to "set" is a number, all implementations
throw, so that users know that
   a.set(0,27)
does not assign 27 to 0th element of a, not 0 to 27th element of a.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/19210002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-16 08:11:30 +00:00
rossberg@chromium.org
db76aa2717 Fix sloppy-mode 'const' under Harmony flag. 
R=yangguo@chromium.org
BUG=173361

Review URL: https://codereview.chromium.org/19199002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15670 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-15 14:12:20 +00:00
dslomov@chromium.org
1c2d005b3c Use corerct conversions for DataView accessors. 
We now use DoubleTo(U)Int32 that follows ES specification.

R=titzer@chromium.org,rossberg@chromium.org

Review URL: https://codereview.chromium.org/18703007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-15 09:32:15 +00:00
dslomov@chromium.org
a6419e3e47 This does not match ES6 spec but is the behavior in both Firefox and WebKit/Blink. 
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/19086003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-15 07:43:46 +00:00
danno@chromium.org
c65f4f7f7b Don't use StoreIC_ArrayLength on frozen arrays 
The code previously assumed that an array with fast properties must have
a writable length property. But Object.freeze() now exposes a way to make
length read-only without moving the object into slow mode. This patch
simply adds a !is_frozen check to the IC code. Any future optimizations
to attribute-setting on JSArrays will need to make similar accomodations.

R=danno
BUG=v8:2711,259548

Review URL: https://chromiumcodereview.appspot.com/19115002
Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-14 22:03:46 +00:00
hpayer@chromium.org
f5ab1b2a4a Collect side effects on paths to dominated block including the dominator. 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18254008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-12 15:06:50 +00:00
danno@chromium.org
48b65f8cd5 Implement truncated d-to-i as a stub on x86 
- Added a general DoubleToIStub so that it's possible to extend to other platforms and non-truncating case.
- This version handles all cases of truncation (previous code deopted in some cases) and all source/destination register combinations without clobbering any temps.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/18612005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15645 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-12 12:28:32 +00:00
titzer@chromium.org
9e7819fac4 Added %NeverOptimize runtime call that can disable optimizations for a method for tests. 
BUG=

Review URL: https://codereview.chromium.org/18214005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15632 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 14:17:56 +00:00
mvstanton@chromium.org
10615aef7b AllocationSites: when updating allocation site transition information, 
be careful to merge feedback appropriately. For example, one array may
have gone holey, and then another allocated at the same place instead
went DOUBLE but remained packed. In this case the ElementsKind
ultimately stored in the AllocationSite should be HOLEY_DOUBLE.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/18531007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 13:08:36 +00:00
rossberg@chromium.org
3d9586c431 This adds the following array iterator methods: 
Array.prototype.values
Array.prototype.keys
Array.prototype.entries

These all return an Array Iterator object which has a next
method.

http://people.mozilla.org/~jorendorff/es6-draft.html#sec-15.4.5

BUG=v8:2722
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/16848004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15620 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 11:20:54 +00:00
mvstanton@chromium.org
b61dfd4a82 A bug in AllocationSite::GetMode(from, to) meant that we didn't update 
boilerplates for SMI to SMI_HOLEY transitions.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/18917003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15617 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 09:39:22 +00:00
dslomov@chromium.org
5eb63e483d Change DataView accessors behavior for insufficient args. 
ES6 spec for DataView is not fully finished, but Blink, WebKit and
Firefox agree in that for DataView use of getters/setters with no
arguments should result in exceptions, while undefined offset argument
is the same as zero.

R=bmeurer@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/18313007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 16:18:59 +00:00
verwaest@chromium.org
22d7a85519 Unify Count Operation assignment with other assignments 
This relands 15578, disables 1 test in harmony observe re bug v8:2774

R=dslomov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/18452013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 12:02:18 +00:00
yangguo@chromium.org
5b70a58ad2 Fix plot script. 
The script for the time line plot has been broken since r15484, which
changed the format of tick entries in v8.log.

To prevent this from happening in the future, I added a test case.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/18826008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 07:53:27 +00:00
dslomov@chromium.org
cfa91762ac Allow parameterless typed array constructors. 
ES6 spec tacitly allows them, and they are allowed in Firefox and in
WebKit/Blink.

R=bmeurer@chromium.org,rossberg@chromium.org

Review URL: https://codereview.chromium.org/18769005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-09 19:34:21 +00:00
yangguo@chromium.org
b99ca1ab12 Do not implicitly convert receivers for builtin functions when inspecting frames. 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/18900004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-09 13:58:11 +00:00
mvstanton@chromium.org
c1e19bfc35 Bugfix: The general array constructor stub did not handle the case 
properly when it is called with a function pointer in the type cell,
instead assuming that an AllocationSite object should be present. The
case where this can happen is if the cell is uninitialized, then the
first constructor call made is to the Array function of a different
context. In that case, we'll store the function pointer in the cell,
and then go ahead and call the array constructor stub too. The bug is
fixed by checking for the AllocationSite object map. If not found, the
constructor stub goes forward with a default ElementsKind, just as in
several other cases.

A test in allocation-site-info.js was beefed up to make sure the state
chain described above is traversed.

BUG=
R=hpayer@chromium.org, hpayer@google.com

Review URL: https://codereview.chromium.org/18277006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15555 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 14:41:54 +00:00
jkummerow@chromium.org
ed6d2d5c44 Add a test case for Phi representations 
BUG=chromium:167394
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/18838002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15553 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 13:43:43 +00:00
jkummerow@chromium.org
f0811f4e6f Fix and cleanup can_be_minus_zero computation 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/18434004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 11:15:24 +00:00
mvstanton@chromium.org
faaa90d13c Allocation-site-info test, removed TODOs. 
Some code was commented out earlier as a todo. Now the code can be reenabled,
because allocation site feedback is working there again.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/18753005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 09:11:56 +00:00
danno@chromium.org
bd50e6d38f Refactoring and cleanup of control instructions 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18331004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 10:40:14 +00:00
danno@chromium.org
345cc98a25 Generate StoreGlobal stubs with Hydrogen 
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=rossberg@chromium.org, ulan@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=15419

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 10:34:02 +00:00
rossberg@chromium.org
929e193fc2 Tweak error message 
R=yangguo@chromium.org
BUG=v8:2758

Review URL: https://codereview.chromium.org/18759002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15503 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 08:34:31 +00:00
yurys@chromium.org
9ef762b683 Do not store fp and sp values in TickSample 
Their values are not used neither by the tick processor nor by CpuProfiler so it is just a waste of space.

TickSample used to be a transport for grabbed register values to TickSample::Trace, now they are passed in a special structure RegisterState which is allocated on the stack for the sampling period.

Some common pieces were moved from platform-dependent code into Sampler::SampleStack and TickSample::Init.

BUG=None
R=jkummerow@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/18620002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-03 16:20:59 +00:00
jkummerow@chromium.org
dd37adc4f1 Change mjsunit tests to work with and without the i18n extension 
BUG=v8:2745
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18187006

Patch from Jochen Eisinger <jochen@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-03 15:33:11 +00:00
ulan@chromium.org
74d147a25d Enable weak embedded maps in optimized code. 
If the top optimized code in call stack is at the point that does not support
deoptimization, then treat the maps in the code as strong pointers.

Note that other optimized code in call stack must support deoptimization
because of the call instruction with side-effects.

BUG=217858,v8:2073
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16955008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15452 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-02 15:15:58 +00:00
danno@chromium.org
77c20c30a3 Revert r15419: "Generate StoreGlobal stubs with Hydrogen" 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18357004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 15:12:21 +00:00
mstarzinger@chromium.org
493d1f1c21 Implement WeakMap.prototype.clear function. 
R=rossberg@chromium.org
BUG=v8:2753
TEST=mjsunit/harmony/collections

Review URL: https://codereview.chromium.org/18352002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 13:56:48 +00:00
prybin@chromium.org
488da00542 Debug: support breakpoints set in the middle of statement (try #2 after rollback) 
Review URL: https://codereview.chromium.org/18349004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 13:44:10 +00:00
danno@chromium.org
a3bce19868 Generate StoreGlobal stubs with Hydrogen 
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 13:22:13 +00:00
prybin@chromium.org
fe22b45965 Revert "Debug: support breakpoints set in the middle of statement" 
Review URL: https://codereview.chromium.org/18326007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 13:05:21 +00:00
prybin@chromium.org
f997bacb16 Debug: support breakpoints set in the middle of statement 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16093040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 12:54:13 +00:00
mvstanton@chromium.org
4aed3b8e84 Test fix - array-feedback.js has a test that only make sense when 
running crankshaft. Allow the test to tolerate --nocrankshaft.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/18328002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 09:00:14 +00:00
jkummerow@chromium.org
05b94f13c8 Add %_DebugBreakInOptimizedCode() pseudo function call to insert int3/stop instructions into optimized code 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/17870002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 15:48:38 +00:00
mvstanton@chromium.org
83519ec87a Hydrogen array constructor cleanup and improvements 
* Cleanup of LCallNewArray::PrintDataTo() method
* Created HCallNewArray::PrintDataTo()
* Created many more tests in array-constructor-feedback.js
* Removed redundant instructions in
  GenerateRecordCallTarget
* Bugfix in CreateArrayDispatchOneArgument: on a call to
  new Array(0), we'd like to set the type feedback cell to
  a packed elements kind, but we shouldn't do it if the
  cell contains the megamorphic sentinel.
* When used from crankshaft, ArrayConstructorStubs can
  avoid verifying that the function being called is the
  array function from the current native context, relying
  instead on the fact that crankshaft issues an
  HCheckFunction to protect the constructor call. (this
  new minor key is used in LCodeGen::DoCallNewArray(), and
  influences code generation in
  CodeStubGraphBuilderBase::BuildArrayConstructor()).
* Optimization: the array constructor specialized for
  FAST_SMI_ELEMENTS can save some instructions by looking
  up the correct map on the passed in constructor, rather
  than indexing into the array of cached maps per element
  kind.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17091002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 13:16:14 +00:00
yangguo@chromium.org
85d7a36ee0 Abort optimization when debugger is turned on. 
BUG=v8:2751
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18198003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15378 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 11:34:51 +00:00
titzer@chromium.org
98f3dab73b Fix elements-kind test to disable optimization of important functions under test; add simpler versions of elements kind test. 
Review URL: https://codereview.chromium.org/17872002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15347 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-27 08:46:46 +00:00
dslomov@chromium.org
ef189ecd82 Do not allow invocation of ArrayBuffer and array buffer views' constructors as functions. 
ES6 bug 695 (https://bugs.ecmascript.org/show_bug.cgi?id=695).
This never worked in WebKit, so no compatibility issues.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/17904007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15346 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-27 07:42:08 +00:00
titzer@chromium.org
bfa9fe95dc Change PC for OSR entries to point to something more sensible (i.e. the first UnknownOsrValue), removing the need to record spilled OSR values and the need for duplicate deopt entries. 
Review URL: https://codereview.chromium.org/16381006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-26 08:43:27 +00:00
mvstanton@chromium.org
081134ecd1 Removed flag optimize-constructed-arrays. 
This eliminates a large amount of hand-written assembly in the platforms.

BUG=
R=danno@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16453002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-25 16:31:07 +00:00
peter.rybin@gmail.com
42a10a9dfe Allow debugger evaluate expressions to mute local variables 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/17636007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15323 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-25 13:48:43 +00:00
dslomov@chromium.org
e6e0ee0708 Update typed arrays behavior to match ES6 rev 15. Remove TO_POSITIVE_INTEGER and throw on negative length arguments. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/17572009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-24 13:58:52 +00:00
dslomov@chromium.org
91eb5f8d25 DataView implementation. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/17153011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 13:02:38 +00:00
yangguo@chromium.org
b7b92bd9ac Short-circuit embedded cons strings. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17418003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 09:24:30 +00:00
yangguo@chromium.org
928cbcdc8d Skip parallel recompilation tests if parallel recompilation is disabled. 
Parallel recompilation is usually disabled on single-core systems.

R=jkummerow@chromium.org
BUG=v8:2733

Review URL: https://codereview.chromium.org/17261021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15231 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 11:01:33 +00:00
wingo@igalia.com
f7ba3a7bb1 Fix stack frame reconstruction for generators with formal arguments 
The formal parameter count was always being treated as an untagged
integer, but it is actually a Smi on ia32 and arm.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/17485002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 10:48:34 +00:00
verwaest@chromium.org
2ca5c6cd03 Fix using monomorphic store instruction for polymorphic stores. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16875008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 18:07:35 +00:00
mvstanton@chromium.org
7f0f022792 Bugfix in hydrogen array literal code generation. 
If an array literal contains some non-constant elements, is of type SMI, and
then the boilerplate transitions to double or fast sometime after we've
crankshafted the code, then we could incorrectly store smis in double arrays.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/17334004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15207 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 13:48:50 +00:00
svenpanne@chromium.org
010d9aba16 Avoid relying on monkey-patchable things in String.prototype.split. 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/17391016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 12:25:40 +00:00
yangguo@chromium.org
1be45275c6 Fix test for bots that force --parallel-recompilation as shell flag. 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16914006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15202 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 09:32:05 +00:00
mvstanton@chromium.org
c70b41684d Use type feedback for Array (non-constructor) call sites. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/17155010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 09:25:24 +00:00
yangguo@chromium.org
627872ec67 Do not modify FLAG_parallel_recompilation after start up. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/17202006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15195 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-18 14:25:24 +00:00
mstarzinger@chromium.org
0524263a27 Remove obsolete elements kind check for array literals. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/17378005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-18 13:32:06 +00:00
svenpanne@chromium.org
fb7310b1fd Fixed read-only attribute of Function.length in strict mode. 
R=cira@chromium.org

Review URL: https://codereview.chromium.org/17006006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15189 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-18 07:51:50 +00:00
palfia@homejinni.com
f8fc5c443e Allow running mjsunit/manual-parallel-recompile on single-core systems. 
- Add an %IsParallelSupported() builtin function to  make possible to check support of parallel processing from JavaScripts.
- Change the test script that if parallel recompilation is forced on a single core CPU, expect that it won't be recompiled in parallel.
- Change the  JSFunction::MarkForParallelRecompilation() to fall back gracefully if parallel recompilation is not supported.

BUG=v8:2733
TEST=mjsunit/manual-parallel-recompile

Review URL: https://codereview.chromium.org/17277002
Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15184 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-17 16:27:18 +00:00
palfia@homejinni.com
93609033e1 MIPS: Optimise Math.floor(x/y) to use integer division for MIPS. 
Use div instruction if some divisors do not have magic number.

Based on commit r11427 (318a9598).

This commit also ports commit r15161 (554d45c1).

BUG=

Review URL: https://codereview.chromium.org/16951016
Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15181 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-17 15:06:41 +00:00
mvstanton@chromium.org
5b2c1a50d9 HCheckFunction is needed to protect new array constructors in 
crankshafted code.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/16944006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-13 14:29:01 +00:00
wingo@igalia.com
d73dace0f5 Delegating yield does not re-box result objects 
Delegating yield (yield*) should just pass on the iterator results it
receives instead of re-boxing them.

R=rossberg@chromium.org
TEST=mjsunit/harmony/generators-iteration
BUG=

Review URL: https://codereview.chromium.org/16695006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-13 10:57:11 +00:00
wingo@igalia.com
09fcac5e39 Use keyed-call inline caches in delegating yield 
Since we can't assume anything about the shape of the iterator in a
yield* (delegating yield), use an IC to do the next() and throw()
iterator method calls.

BUG=v8:2691
R=rossberg@chromium.org
TEST=mjsunit/regress/regress-2691

Review URL: https://codereview.chromium.org/15455002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-13 10:18:28 +00:00
mvstanton@chromium.org
75afb8ce79 Fix for bug 245480. Calling new Array(a) with a single argument could result in creating a holey array with a packed elements kind. 
BUG=245480
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/16341004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 18:04:16 +00:00
mstarzinger@chromium.org
93ab1864ea Allow the deoptimizer translation to track de-materialized objects. 
This allows the deoptimizer to materialize objects (e.g. the arguments
object) while deopting without having a consective stack area holding
the object values. The LEnvironment explicitly tracks locations for
these values and preserves them in the translation.

R=svenpanne@chromium.org
TEST=mjsunit/compiler/inline-arguments

Review URL: https://codereview.chromium.org/16779004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 14:22:49 +00:00
wingo@igalia.com
cc27c4c41b GeneratorFunction() makes generator instances 
The current specification has GeneratorFunction() be like Function(),
except that it makes generator instances.  This commit implements that
behavior.  It also fills in a piece of the implementation where
otherwise calling GeneratorFunction or GeneratorFunctionPrototype would
cause an abort because they have no code.

R=mstarzinger@chromium.org
TEST=mjsunit/harmony/generators-iteration
TEST=mjsunit/harmony/generators-runtime
BUG=v8:2355,v8:2680

Review URL: https://codereview.chromium.org/15218004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15084 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 12:52:16 +00:00
wingo@igalia.com
1fb2f4b358 For-of statements do not permit initializers. 
R=rossberg@chromium.org
BUG=v8:2720

Review URL: https://codereview.chromium.org/16739008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 12:37:44 +00:00
wingo@igalia.com
418ddc800a Allocate generator result objects before unwinding try handlers 
When a generator suspends, it saves its state out to the heap and
unwinds try handlers but doesn't pop anything off the stack.  Instead it
relies on no GC happening between the suspend and the return from the
generator.  However this was not the case: boxing the result object
could cause GC, which would try to traverse the stack but would
misinterpret words from unwound try handlers as heap objects.

This CL changes to allocate the result objects before the suspend.  It
also removes the generators-iteration skip introduced in r15065.

R=mstarzinger@chromium.org
TEST=mjsunit/harmony/generators-iteration
BUG=

Review URL: https://codereview.chromium.org/16801006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15079 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 11:02:51 +00:00
yangguo@chromium.org
74556569d1 Reland "Enable map dependency to in-flight compilation info." 
BUG=248076
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16782004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15077 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 09:43:22 +00:00
wingo@igalia.com
5760c7b598 Disable --harmony -> --harmony-generators implication 
A GC-related bug has started showing up after r15060 that unfortunately
I haven't been able to reproduce.  Disable generators by default for the
Canary push.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16638011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 14:45:17 +00:00
yangguo@chromium.org
6da97b1d4a Revert "Enable map dependency to in-flight compilation info." 
This includes r15032, r15030 and r15005.

R=ulan@chromium.org
BUG=248076

Review URL: https://chromiumcodereview.appspot.com/16482004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 11:55:56 +00:00
jkummerow@chromium.org
9447014780 Skip some conditional deopts for Div/Mul when all uses are truncating. 
- set "can be minus zero" flag properly so minus-zero checks are skipped
- skip "integer result?" check in division code when uses are truncating
- drive-by cleanup: consolidated computation of kCanOverflow flag for Add/Sub into range inference phase

BUG=v8:2132
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/16741002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 11:43:57 +00:00
wingo@igalia.com
f68d6a10f8 Fix crasher when checking for "of", but next token has no literal buffer 
Also fix a typo in an assertion in scanner.h.

R=mstarzinger@chromium.org
BUG=248025
TEST=mjsunit/regress/regress-crbug-248025.js

Review URL: https://codereview.chromium.org/16549003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 11:30:03 +00:00
wingo@igalia.com
29a1044409 Keep native fuzzing blacklists in sync 
R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16436005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 12:25:31 +00:00
wingo@igalia.com
093492f01c Don't fuzz _GeneratorNext 
The previous patch that renamed _GeneratorSend to _GeneratorNext missed
the blacklist in fuzz-natives-part4.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16339008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 12:06:13 +00:00
mstarzinger@chromium.org
ecc41e30c0 Fix re-initialization of existing double field. 
R=verwaest@chromium.org
BUG=v8:2717
TEST=mjsunit/regress/regress-2717

Review URL: https://codereview.chromium.org/16735003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15033 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 11:55:47 +00:00
yangguo@chromium.org
b0afb77731 Fix parallel recompilation wrt transition maps dependency. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15896038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 11:33:23 +00:00
yangguo@chromium.org
1594eca8ed Fix parallel recompilation wrt initial object/array map dependency. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/16641002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 11:17:48 +00:00
wingo@igalia.com
f88bca9576 Generator object "next" method takes optional send value 
Update the generators implementation to make "next" also do the job of
what was previously called "send" by taking an optional argument.
Remove send, and do a bunch of renamings.

R=rossberg@chromium.org
BUG=v8:2355, v8:2715

Review URL: https://codereview.chromium.org/16136011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15028 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 09:26:18 +00:00
verwaest@chromium.org
3588aa45cd Take all uses into account to clear int32 truncation. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16656002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 17:28:46 +00:00
yangguo@chromium.org
17cfe68015 Enable map dependency to in-flight compilation info. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/16542003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 13:27:03 +00:00
wingo@igalia.com
b29a78fb02 Baseline for-of implementation 
Add full-codegen support for the ES6 for-of iteration statement.

R=mstarzinger@chromium.org, rossberg@chromium.org
TEST=mjsunit/harmony/iteration-semantics
BUG=v8:2214

Review URL: https://codereview.chromium.org/15288011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15002 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 11:12:21 +00:00
wingo@igalia.com
cb0d146862 Add initial parser support for harmony iteration 
This commit adds initial parser support for harmony iteration.
Specifically, it will parse:

  for (x of y) {}
  for (let x of y) {}
  for (var x of y) {}

The semantics are still unimplemented.

TEST=mjsunit/harmony/for-of-syntax
BUG=v8:2214
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/15300018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 14:38:26 +00:00
verwaest@chromium.org
16199c63d8 Initialized representations of computed values to None. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14721009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14982 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 14:21:35 +00:00
mvstanton@chromium.org
701f356bac Move runtime array constructor functions from builtins.cc to runtime.cc. 
Not only is runtime.cc a better location, but situations arise soon where we'll
want to make runtime calls to these functions.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16399007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 13:22:42 +00:00
mvstanton@chromium.org
a9a80fb422 Allocation type info advice consumed in bailout path leads to assert failure. 
If the runtime is taken for a constructor like "new Array(100000)", where
allocation site info already led to an elements kind of DOUBLE, then the runtime
would fail to transition the array to dictionary mode. Better to recognize this
case and avoid wasting time by following the advice. Furthermore, it offers a
way to recognize that the array should be in dictionary mode (though a future
checkin will capitalize on that).

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/15993012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 09:26:30 +00:00
verwaest@chromium.org
5e8679beea Remove the optimized construct stub. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15993016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14946 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-05 08:43:25 +00:00
adamk@chromium.org
de92d0b0e0 Array.observe emit splices for array length change and update index >= length 
R=adamk@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/15504002

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 23:58:49 +00:00
jkummerow@chromium.org
20cedf9a4b Liveness analysis for environment slots in Hydrogen 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/15533004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 16:41:24 +00:00
mvstanton@chromium.org
3d3c6b1599 Special Array constructor type feedback erroneously recorded when Array 
was called as a function. Issue was found with optimize_constructed_array
turned on. This patch makes the fix, and turns the flag back on.

BUG=244461
R=danno@chromium.org

Review URL: https://codereview.chromium.org/16057005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-03 14:46:23 +00:00
jkummerow@chromium.org
b4058a3bd4 Fast literals: fixed initialization of non-copied in-object property fields 
BUG=chromium:245424
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16190008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-31 15:50:19 +00:00
verwaest@chromium.org
5b08a1a119 Fix DeferredTaggedToINoSSE2 to not unconditionally untag undefined to 0. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16228002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-31 08:37:34 +00:00
verwaest@chromium.org
1a4a904bef Replace DeoptimizeOnUndefined with whitelisting AllowUndefinedAsNan 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15952007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-30 09:11:06 +00:00
adamk@chromium.org
09c489ea93 Re-land: Implement ObservedArrayPop, ObservedArrayShift, ObservedArrayUnshift & ObservedArraySplice 
Original issue: https://codereview.chromium.org/15331002/

Broke mozilla/js1_5/Array/regress-451483.js, which ends up attempting to call %IsObserved() on a non-object.

IsObserved now checks for JSReceiver and returns false rather than crashing.

R=adamk@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/15777007

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 17:26:05 +00:00
yurys@chromium.org
09959efe41 Add support for //# sourceURL similar to deprecated //@ sourceURL one. 
BUG=v8:2702
R=yangguo@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/15859010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 12:40:21 +00:00
mstarzinger@chromium.org
26e7936e27 Re-enable allocation-site-info test case. 
R=svenpanne@chromium.org
TEST=mjsunit/allocation-site-info

Review URL: https://codereview.chromium.org/16192002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 08:29:25 +00:00
svenpanne@chromium.org
116fe61f5e Disabled broken test 
TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/15951006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 07:32:10 +00:00
mstarzinger@chromium.org
3b114cdd64 Fix IfBuilder::Deopt to clear the current block. 
R=jkummerow@chromium.org
BUG=chromium:243868
TEST=mjsunit/regress/regress-crbug-243868

Review URL: https://codereview.chromium.org/16155003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 15:30:49 +00:00
rossberg@chromium.org
ecb6bd2718 Revert "Implement ObservedArrayPop, ObservedArrayShift, ObservedArrayUnshift & ObservedArraySplice" 
This reverts commit r14846.

Broke Mozilla test (see http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/builds/3608/steps/Mozilla/logs/stdio), e.g.:

=== mozilla/js1_5/Array/regress-451483 ===
--- stdout ---
BUGNUMBER: 451483
STATUS: [].splice.call(0) == []
/mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/data/js1_5/Array/regress-451483.js:57: illegal access
  var result = [].splice.call(0);
                         ^
Command: /mnt/data/b/build/slave/v8-linux-shared/build/v8/out/Release/d8 --test --nobreak-on-abort --nodead-code-elimination --nofold-constants --expose-gc /mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/mozilla-shell-emulation.js /mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/data/shell.js /mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/data/js1_5/shell.js /mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/data/js1_5/Array/shell.js /mnt/data/b/build/slave/v8-linux-shared/build/v8/test/mozilla/data/js1_5/Array/regress-451483.js

TBR=rafaelw@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16150003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 13:00:53 +00:00
rossberg@chromium.org
6fa987193e Make (Object.)observed Arrays use SafeRemoveArrayHoles during sort 
R=adamk,rossberg
BUG=

Review URL: https://codereview.chromium.org/15837006

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 11:23:59 +00:00
rossberg@chromium.org
c06dc9d010 Implement ObservedArrayPop, ObservedArrayShift, ObservedArrayUnshift & ObservedArraySplice 
R=rossberg,adamk,arv
BUG=

Review URL: https://codereview.chromium.org/15331002

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 11:16:02 +00:00
verwaest@chromium.org
aa2444269b Fix the hole loading optimization. 
- Holes are only ever loaded as double or tagged.
- Change to tagged has to deoptimize on undefined (no implicit
  conversions from double the hole NaN -> tagged undefined).

BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16099006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 17:33:14 +00:00
verwaest@chromium.org
9d3e7e5b81 Fix Object.freeze for objects with mixed accessors and data properties 
The bug in the existing code was that it modified the |attributes|
local variable on its way through the loop in CopyUpToAddAttributes.
But that affected any properties updated after an accessor property.
The code now sets up a mask each time and applies that instead of
mutating |attributes|.

R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16051002

Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 10:56:27 +00:00
yangguo@chromium.org
3e41834721 Regexp parser: reset flag after scanning ahead for capture groups. 
When the regexp pattern parser encounters an unbound reference to a
capturing group, it needs to scan ahead to decide whether it really
is a reference.  The scan advances to the end of the pattern string
and sets has_more_ to false, but fails to reset it to true so that
later on, parsing a character class wrongly fails.

R=ulan@chromium.org
BUG=v8:2690

Review URL: https://chromiumcodereview.appspot.com/15712006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 10:53:37 +00:00
yangguo@chromium.org
7c2a1346d6 Fix edge case in stack trace formatting. 
Bug description: in strict mode, null as receiver is not implicitly converted
to the global object, so that when formatting the stack trace, the receiver of
the stack frame is null. The IS_OBJECT check returns true for null, but
%GetDataProperty expected a JSObject, which results in a failed RUNTIME_ASSERT.

R=mvstanton@chromium.org
BUG=237617

Review URL: https://chromiumcodereview.appspot.com/15670003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14797 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 11:33:46 +00:00
yangguo@chromium.org
1d39355405 Add belated test for the SeqStringSetChar bug. 
R=titzer@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15849003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 08:37:27 +00:00
mstarzinger@chromium.org
8fb2086847 Fix embedded new-space pointer in LCmpObjectEqAndBranch. 
R=mvstanton@chromium.org
BUG=chromium:240032
TEST=mjsunit/regress/regress-crbug-240032

Review URL: https://codereview.chromium.org/15779004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 14:06:28 +00:00
mvstanton@chromium.org
1a4482ab3f Missing type cell on ia32 from bindings. 
Javascript constructors called from C++ code didn't have a type cell
properly filled in on ia32. This showed up as a bug in webkit bindings.
Re-enabled flag optimize-constructed-arrays.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15870002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 13:45:33 +00:00
yangguo@chromium.org
a1e18bdf3c Improve SeqStringSetChar implementation. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15743006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 09:51:06 +00:00
verwaest@chromium.org
308e69755b Implement HChange support for Smis and use it in Load/StoreNameField 
BUG=
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15303004

Patch from Daniel Clifford <danno@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 08:32:07 +00:00
verwaest@chromium.org
36e91242fd Make Object.freeze fast 
This patch both speeds up the freeze operation itself, but also
allows properties to remain in fast mode. Objects with non-empty
elements backing stores still end up with slow elements.

Relanding r14758 and r14759 with fix for Test262: only mark properties
and elements READ_ONLY if they are not JS setter/getters. Tightened up
tests to assert frozen-ness, and added targeted tests for the new code
(covering accessors).

BUG=v8:1858, 115960
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15691007

Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14762 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 07:05:58 +00:00
adamk@chromium.org
4d48bb832f Revert "Make Object.freeze fast" 
and "Fix Object.freeze on dictionary-backed arrays to properly freeze elements"

This reverts r14758 and r14759 due to introducing failures in Test262

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/15681004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 21:27:00 +00:00
adamk@chromium.org
3ebccb7aae Fix Object.freeze on dictionary-backed arrays to properly freeze elements 
Follow-up to r14758: slightly rearranges JSObject::Freeze() to avoid duplicating
code while still retaining proper dictionary elements storage behavior.

Also fix a lint error.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/15737018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 20:40:04 +00:00
adamk@chromium.org
648e99e308 Make Object.freeze fast 
This patch both speeds up the freeze operation itself, but also
allows properties to remain in fast mode. Objects with non-empty
elements backing stores still end up with slow elements.

BUG=v8:1858, 115960
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/14888005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 18:53:58 +00:00
mstarzinger@chromium.org
b704cb9139 Fix bogus deopt in BuildEmitDeepCopy for holey arrays. 
R=verwaest@chromium.org
BUG=chromium:242924
TEST=mjsunit/regress/regress-crbug-242924

Review URL: https://codereview.chromium.org/15735012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 17:58:21 +00:00
verwaest@chromium.org
b353b1d131 Don't allow copying holes to fields. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15745006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 15:33:53 +00:00
mstarzinger@chromium.org
bf413b5122 Fix VisitLogicalExpression for empty blocks on RHS. 
R=jkummerow@chromium.org
BUG=chromium:242870
TEST=mjsunit/regress/regress-crbug-242870

Review URL: https://codereview.chromium.org/15744002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14747 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 13:27:00 +00:00
yangguo@chromium.org
9960b24694 Fix unexpected elements transition in JSON.parse 
R=verwaest@chromium.org
BUG=241344

Review URL: https://chromiumcodereview.appspot.com/15739003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 13:24:18 +00:00
verwaest@chromium.org
8db3014974 Keep representations while overwriting transitions. 
BUG=chromium:241477
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15718002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 10:46:33 +00:00
mstarzinger@chromium.org
d696f7b3c1 Use explicit type feedback clearing in some tests. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/15711004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 09:17:27 +00:00
hpayer@chromium.org
9c3c28646b Force GC before executing unbox double arrays test to avoid timeouts. 
BUG=

Review URL: https://codereview.chromium.org/15292002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 09:05:22 +00:00
mstarzinger@chromium.org
db4a770c3f Add regression test for fix from r14732. 
R=verwaest@chromium.org
BUG=chromium:242502
TEST=mjsunit/regress/regress-crbug-242502

Review URL: https://codereview.chromium.org/15288008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-21 14:20:42 +00:00
mvstanton@chromium.org
239b2830cc Turning off optimize-constructed-arrays to investigate a WebKit/bindings issue. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15303002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-17 12:33:48 +00:00
hpayer@chromium.org
d7427aa938 Fix transition test to support allocation site info. 
BUG=

Review URL: https://codereview.chromium.org/15270002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14716 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-17 08:56:45 +00:00
verwaest@chromium.org
73d084fad3 Fix bugs in rewriting combined with attributes and accessors 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14843023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-17 03:16:20 +00:00
titzer@chromium.org
5746d38351 Fix code gen bug on arm and mips; SeqStringSetChar overwrites a register; Add better default PrintDataTo for HInstruction 
BUG=

Review URL: https://codereview.chromium.org/14895019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 14:27:39 +00:00
rossberg@chromium.org
8ce0718763 Implement Array.observe and emit splice change records for ArrayPush 
Review URL: https://codereview.chromium.org/14978007

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 11:19:37 +00:00
adamk@chromium.org
0ed681905c Re-land Notifier.prototype.performChange + tests 
Fixes the debug check failure on sorting an object with an array __proto__.

Original Issue: https://codereview.chromium.org/14779011/

TBR=adamk@chromium.org

Review URL: https://codereview.chromium.org/14977015

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 22:09:40 +00:00
adamk@chromium.org
91daa127c9 Revert "Implement Object.getNotifier(obj).performChange()" (r14696) 
Reverts r14696 because it caused debug assertion failures when running
test/mjsunit/harmony/object-observe.js

TBR=rossberg

Review URL: https://codereview.chromium.org/15203002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 18:47:48 +00:00
adamk@chromium.org
07a54cd06d Implement Object.getNotifier(obj).performChange() 
R=rossberg,adamk,arv
BUG=

Review URL: https://codereview.chromium.org/14779011
Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 17:44:45 +00:00
wingo@igalia.com
55f6281281 Revert "GeneratorFunction() makes generator instances" 
This reverts r14684 because of blink LayoutTest failures in
inspector/debugger/debugger-pause-in-internal.html.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14619040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 15:57:58 +00:00
mvstanton@chromium.org
31b8fc19c3 With flag optimize-constructed-arrays on, ARM and MIPS suffered a performance degrade due to incorrect code in GenerateRecordCallTarget(). 
The CL also enables flag optimize-constructed-arrays.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14772043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 15:17:01 +00:00
wingo@igalia.com
e24cc32011 GeneratorFunction() makes generator instances 
The current specification has GeneratorFunction() be like Function(),
except that it makes generator instances.  This commit implements that
behavior.  It also fills in a piece of the implementation where
otherwise calling GeneratorFunction or GeneratorFunctionPrototype would
cause an abort because they have no code.

R=mstarzinger@chromium.org, rossberg@chromium.org
TEST=mjsunit/harmony/generators-iteration
TEST=mjsunit/harmony/generators-runtime
BUG=v8:2355
BUG=v8:2680

Review URL: https://codereview.chromium.org/14857009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 13:22:05 +00:00
wingo@igalia.com
d6fa1d8ad9 Function constructor should avoid String.prototype methods 
Replace a use of .indexOf with a call to StringIndexOf.  As always,
lexical scoping to the rescue.

R=mstarzinger@chromium.org
TEST=mjsunit/regress/regress-2686
BUG=v8:2686

Review URL: https://codereview.chromium.org/14668013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14678 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 10:52:06 +00:00
wingo@igalia.com
8f602260d3 Implement yield* (delegating yield) 
Ideally this would have been implemented via desugaring at parse-time,
but yield* is an expression, and its desugaring includes statements like
while and try/catch.  We'd have to have BlockExpression in the AST to
support that, and it's not worth it for this feature.

So instead we implement all of the logic in
FullCodeGenerator::VisitYield.  Delegating yield AST nodes now have a
try handler index, for the try/catch.  Otherwise the implementation is
straightforward.

R=rossberg@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14582007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14669 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 16:26:56 +00:00
wingo@igalia.com
b7ecb8cb8d Revert mistakenly committed r14667 and r14666. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14668 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 16:17:26 +00:00
wingo@igalia.com
25c1d78e3d Implement yield* (delegating yield) 
Ideally this would have been implemented via desugaring at parse-time,
but yield* is an expression, and its desugaring includes statements like
while and try/catch.  We'd have to have BlockExpression in the AST to
support that, and it's not worth it for this feature.

So instead we implement all of the logic in
FullCodeGenerator::VisitYield.  Delegating yield AST nodes now have a
try handler index, for the try/catch.  Otherwise the implementation is
straightforward.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 15:59:25 +00:00
titzer@chromium.org
68eb1e50ca Improve dead code elimination by transitively marking live code and removing all dead code. Replace unreachable phi removal algorithm with the new dead code elimination pass, which is more thorough. 
Review URL: https://codereview.chromium.org/14676011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 13:10:52 +00:00
wingo@igalia.com
1634369af7 Don't flush code for generator functions. 
R=mstarzinger@chromium.org
BUG=v8:2681
TEST=mjsunit/regress/regress-2681

Review URL: https://codereview.chromium.org/14731023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 17:36:26 +00:00
dslomov@chromium.org
5777f3fb48 Enable native implementation of array buffer and typed arrays in d8 and tests. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/15059009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 14:18:43 +00:00
jkummerow@chromium.org
7636fdec27 Fix missing hole check for loads from Smi arrays when all uses are changes 
BUG=chromium:233737

Review URL: https://codereview.chromium.org/14978004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 11:58:10 +00:00
danno@chromium.org
05e8e0e7b4 Elide hole checks on KeyedLoads of holey double arrays 
Improves NavierStokes by about 5%

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/15014020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 07:35:26 +00:00
svenpanne@chromium.org
f853b08ad0 Fixed constant folding in HMod. 
We have to check for overflow before attempting to do a modulo operation,
otherwise Crankshaft itself segfaults on some platforms, e.g. ia32. Added tests
even for division, where the problem doesn't show up, just to be sure...

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/14617014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 07:32:38 +00:00
verwaest@chromium.org
df57747fc4 Track heap objects. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14996004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 17:17:50 +00:00
wingo@igalia.com
3f09e0a3d8 Remove separate maps for function instances 
ES3 specified that functions created via Function() would have
enumerable prototypes, unlike function literals.  For this reason, V8
has always had two prototypes for functions: "function_map" for
literals, and "function_instance_map" for "function instances": those
functions created by Function().

However, since 2009 or so, both maps have been the same!  Both have had
writable, non-enumerable prototypes.  Moreover, ES5 changed to specify
that function instances would have non-enumerable prototypes.

This patch removes the separate maps for function instances in sloppy
and strict mode.

R=mstarzinger@chromium.org
TEST=mjsunit/function-prototype
BUG=

Review URL: https://codereview.chromium.org/14829005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14619 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 12:59:20 +00:00
mstarzinger@chromium.org
eb18db3ab4 Skip flaky regress-crbug-160010 regression test. 
R=ulan@chromium.org
BUG=chromium:160010
TEST=mjsunit/regress/regress-crbug-160010

Review URL: https://codereview.chromium.org/14908006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14614 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 10:39:16 +00:00
verwaest@chromium.org
52008429b7 Use mutable heapnumbers to store doubles in fields. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14850006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 15:02:08 +00:00
ulan@chromium.org
cd4e9866b7 Fix environment in HOptimizedGraphBuilder::VisitCountOperation. Follow-up for r14584. 
R=danno@chromium.org
BUG=v8:2671
TEST=mjsunit/regress/regress-2671-1.js

Review URL: https://chromiumcodereview.appspot.com/14972009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 14:58:06 +00:00
mvstanton@chromium.org
f5ad8e4469 Turn off optimize-constructed-arrays flag to investigate ARM perf issue 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/14753007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 08:49:29 +00:00
danno@chromium.org
bd9274436c Bias commutative single-use register inputs and support lea adds 
This improves register allocation for many common add and multiply patterns on ia32 and x64 by reducing register pressure.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14856015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14587 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 08:37:24 +00:00
wingo@igalia.com
75d939aceb Generators save and restore stack handlers 
This CL adds machinery to unwind stack handlers from the stack and store
them into a generator's operand array.  It also includes routines to
reinstate them.  Together this allows generators to yield within
try/catch and try/finally blocks.

BUG=v8:2355
R=mstarzinger@chromium.org
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14031028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14586 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 08:08:23 +00:00
ulan@chromium.org
e5a29e8ff9 Do not change environment between simulate and scope with no observable side-effects in HandlePropertyAssignment. 
LChunkBuilder reconstructs the environment by applying simulates. A scope with no observable side-effects has no simulates. If the scope deoptimizes, then LChunkBuilder would miss the changes to the environment between the last simulate and the scope.

R=danno@chromium.org
BUG=v8:2671
TEST=mjsunit/regress/regress-2671.js

Review URL: https://chromiumcodereview.appspot.com/14793009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 07:40:28 +00:00
mvstanton@chromium.org
d7b013de57 Becuase of cross-context calls, hydrogen-based Array constructor needs to ensure 
the array constructor pointer passed in matches that of the current context.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/14846017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 21:01:53 +00:00
dslomov@chromium.org
b15bbfbe39 Implement TypedArray.set function. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14581005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 14:42:17 +00:00
dslomov@chromium.org
e45abf08cc Update mjsunit tests to be complaian with ES6 implementation of typed arrays 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14580012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 14:03:50 +00:00
verwaest@chromium.org
46d39cabd6 Fix polymorphic to monomorphic load to take representation into account. 
Review URL: https://chromiumcodereview.appspot.com/14966005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14565 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 10:32:23 +00:00
wingo@igalia.com
3cd73ebc2f Generators return boxed values 
Generators now box their return values in object literals of the form

  { value: VAL, done: DONE }

where DONE is false for yield expressions, and true for return
statements.

BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/13870007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14563 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 08:46:42 +00:00
wingo@igalia.com
19e5f6cbf0 toString() on generator functions prints with function* 
This CL adds a %FunctionIsGenerator runtime function, and uses it in the
function toString() implementation.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-runtime

Review URL: https://codereview.chromium.org/14912002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 13:01:28 +00:00
dslomov@chromium.org
02889cafb8 Add type checks to typed array property getters. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14650014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14538 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 09:59:50 +00:00
dslomov@chromium.org
18d02d06f0 Implement TypedArray.subarray method. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14740017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 09:43:44 +00:00
dslomov@chromium.org
8b1f81fa24 Allow pathological zero-length typed arrays. 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14857002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 13:51:03 +00:00
dslomov@chromium.org
343bf33918 Range checking bug in typed array constructor. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14850011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 13:30:57 +00:00
dslomov@chromium.org
2751eeb361 More typed array constructors. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14845012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14518 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 12:27:03 +00:00
dslomov@chromium.org
6e86141916 Implementation of Uint8ClampedArray. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14657003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 11:36:48 +00:00
dslomov@chromium.org
1da21f1868 Revert "Flag optimize-constructed-arrays turned on." 
This reverts commit r14491.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-30 11:23:34 +00:00
mvstanton@chromium.org
ff57a1062b Flag optimize-constructed-arrays turned on. 
This routes array construction through a hydrogen stub, and enables use of
allocation site info tracking.

BUG=

Review URL: https://codereview.chromium.org/14616010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-30 08:22:05 +00:00
dslomov@chromium.org
9e2c046f5c TypedArray(length) constructor 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14460008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 16:16:31 +00:00
danno@chromium.org
e6570d43ba Fix bug in CompareNil IC 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/13863022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 15:09:22 +00:00
danno@chromium.org
528792e39b Fix beyond-heap load on x64 Crankshafted StringCharFromCode 
BUG=chromium:235311
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14387008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 14:34:24 +00:00
dslomov@chromium.org
7b1e7463f2 Remove __ prefix from Harmony typed arrays implementation 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14402026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 11:18:27 +00:00
verwaest@chromium.org
99e17bb12a Track storage types of instance variables. 
Review URL: https://chromiumcodereview.appspot.com/14146005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 15:30:41 +00:00
mstarzinger@chromium.org
1706fe657e Add support for yield expressions 
This CL extends the generator suspend and resume implementation to
capture values on the operand stack.

It factors out some helpers to measure and access the operand stack into
the JavaScriptFrame class.  It also refactors the suspend and resume
helpers to avoid handle allocation.

BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14348003

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 12:09:32 +00:00
mstarzinger@chromium.org
885fd2f4b2 Fix yield inside with 
This patch makes it so that suspending generators always saves the
context.  Previously we erroneously assumed that if the operand stack
was empty, that the context would be unchanged, but that is not the case
with "with".

Fixing this brought out an interesting bug in the variable allocator.
Yield inside with will reference a context-allocated temporary holding
the generator object.  Before the fix, this object was looked up in the
with context instead of the function context, because with contexts were
not being simulated during full-codegen.  Previously this was OK as all
variables would be given LOOKUP allocation instead of CONTEXT, but the
context-allocated temporary invalidated this assumption.  The fix is to
simulate the context chain more accurately in full-codegen.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14416011

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 11:55:22 +00:00
mstarzinger@chromium.org
bb2d8a51da Implement support for Math.imul in Crankshaft. 
R=jkummerow@chromium.org
TEST=mjsunit/math-imul

Review URL: https://codereview.chromium.org/14471041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14450 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 08:52:35 +00:00
mvstanton@chromium.org
e751ad06d9 Constructed arrays can be created with Hydrogen code stubs. The feature is still off by default (--optimize-constructed-arrays). 
BUG=

Review URL: https://codereview.chromium.org/12385014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 16:00:32 +00:00
mstarzinger@chromium.org
8f1fc88f8c Relax --debug-code checks that runtime returns are not the hole 
ia32, unlike the other architectures, includes a --debug-code check that
asserts that runtime functions do not return the hole.  However the new
SuspendJSGeneratorObject runtime does return the hole at times.

This CL adds a wee hack that only signals an error if the callee was not
SuspendJSGeneratorObject.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/13856011

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 12:00:07 +00:00
mstarzinger@chromium.org
71dc9e165f Capture receiver in generator object 
Previously there has been no reason to context-allocate the receiver, so
access to the receiver always goes through the stack.  This was failing
with generators, which assumed that forcing context allocation would
relieve the need of storing anything but the context and the function on
the stack.

This CL adds a slot in generator objects to capture the receiver, and
restores it when resuming a generator.

BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14158006

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14434 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 10:59:09 +00:00
jkummerow@chromium.org
628875475e Fix overflow check in mul-i which was missing since r14322 
Review URL: https://codereview.chromium.org/14471012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 07:36:59 +00:00
mstarzinger@chromium.org
338f11850a Fix generator suspend and resume on ARM 
This CL fixes a number of rookie mistakes in
FullCodeGenerator::VisitYield and
FullCodeGenerator::EmitGeneratorResume, and re-enables the
generators-iteration test on ARM.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/13843022

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-24 16:07:44 +00:00
mstarzinger@chromium.org
23f39546b9 Generators can resume 
The generator object methods "next", "send", and "throw" now
include some inline assembly to set up a resumed stack frame.  In some
common cases, we can just jump back into the frame to resume it.
Otherwise the resume code calls out to a runtime to fill in the operand
stack, rewind the handlers, and possibly to throw an exception.

BUG=v8:2355
TESTS=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/14066016

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-24 13:00:16 +00:00
dslomov@chromium.org
852f90339a Adds EXTERNAL_DOUBLE_ARRAY to a list of instance types 
BUG=v8:2646

Patch by Andrei Kashcha <anvaka@gmail.com>

Review URL: https://codereview.chromium.org/14042008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14398 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 17:02:09 +00:00
ulan@chromium.org
bc4d7878e6 Do not emit Simulates in HandlePolymorphicElementAccess. 
BUG=v8:2653
R=jkummerow@chromium.org
TEST=mjsunit/regress/regress-2653.js

Review URL: https://chromiumcodereview.appspot.com/14081025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 15:28:44 +00:00
svenpanne@chromium.org
cd34acdae3 Do not emit double values at their use sites. 
Revert part of r14179. From the regression test's comment:

Currently, the gap resolver doesn't handle moves from a ConstantOperand to a
DoubleRegister, but these kind of moves appeared when HConstant::EmitAtUses
was changed to allow special double values (-0, NaN, hole). So we should
either enhance the gap resolver or make sure that such moves don't happen.

BUG=chrome:234101

Review URL: https://codereview.chromium.org/14429002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14394 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 13:08:10 +00:00
rossberg@chromium.org
3cd9f6a40e Add d8 functionality for switching between realms (a.k.a. contexts), 2nd try 
The only difference to the previous implementation (https://codereview.chromium.org/14295011/) is in patch set 2.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14404005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 11:29:52 +00:00
mstarzinger@chromium.org
8fa1186258 Skip one generators test because of no-snap failures. 
R=rossberg@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-objects

Review URL: https://codereview.chromium.org/13956023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 08:46:02 +00:00
mstarzinger@chromium.org
0f348e5592 Generator objects can suspend 
* src/ast.h:
* src/parser.cc: Differentiate between the different kinds of yields, in
  anticipation of boxing return values.  Parse `return' into `yield' in
  a generator.

* src/runtime.h:
* src/runtime.cc (Runtime_SuspendJSGeneratorObject): New horrible
  runtime function: saves continuation, context, and operands into the
  generator object.

* src/arm/full-codegen-arm.cc (VisitYield):
* src/ia32/full-codegen-ia32.cc (VisitYield):
* src/x64/full-codegen-x64.cc (VisitYield): Arrange to call
  SuspendJSGeneratorObject.  If the call returns the hole, we suspend.
  Otherwise we resume.

BUG=v8:2355
TEST=These codepaths are tested when the generator is first invoked, and so
are covered by mjsunit/harmony/generators-objects.js.

Review URL: https://codereview.chromium.org/13704010

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 14:11:23 +00:00
yurys@chromium.org
c0fca4e8c8 Revert r14252 as it broke --prof for some cases 
R=jkummerow
BUG=v8:2642

Review URL: https://codereview.chromium.org/14367020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 11:55:01 +00:00
yangguo@chromium.org
72a05845ec Revert r14310 due to isolate tests failure. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14021004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14334 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 14:41:24 +00:00
mstarzinger@chromium.org
adf9afc09e Fix missing Smi check in grow mode keyed stores. 
R=danno@chromium.org
TEST=mjsunit/regress/regress-grow-store-smi-check

Review URL: https://codereview.chromium.org/14352011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14332 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 14:18:27 +00:00
jkummerow@chromium.org
5eadc1a428 Remove SCons related files 
Review URL: https://codereview.chromium.org/14348002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 11:01:14 +00:00
dslomov@chromium.org
3e31a67bf8 Disable the test due to Win64 build problems. 
The large allocation actually succeeds on Win64, but it looks like
subsequent memory adjustment fails. Disabling the test for now, will
investigate further.

TBR=rossberg

Review URL: https://codereview.chromium.org/14330006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14320 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 18:13:44 +00:00
yangguo@chromium.org
b3707c17d6 Inline String.fromCharCode in hydrogen. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/14296009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 16:37:11 +00:00
rossberg@chromium.org
2458a801f7 Add d8 functionality for switching between realms (a.k.a. contexts) 
R=mstarzinger@chromium.org,yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14295011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14310 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 15:07:31 +00:00
mstarzinger@chromium.org
57a7714e06 Generator objects have [[Class]] === "Generator" 
Generator object maps now link to their constructors, which are created
with a "Generator" class name.  This does not cause a per-generator
constructor property to be set.

BUG=v8:2355
TEST=mjsunit/harmony/generators-objects

Review URL: https://codereview.chromium.org/14262004

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14309 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 15:01:25 +00:00
dslomov@chromium.org
c1a19275d3 First cut at impementing ES6 TypedArrays in V8. 
BUG=

Review URL: https://codereview.chromium.org/13975012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14285 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 14:16:30 +00:00
yangguo@chromium.org
d7b78dc230 Fix OOB write in --print-code. 
R=jkummerow@chromium.org
BUG=v8:2624

Review URL: https://chromiumcodereview.appspot.com/14018010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-15 15:19:51 +00:00
mstarzinger@chromium.org
591a8ec86c Calling a generator function returns a generator object 
* src/heap.h:
* src/heap.cc:
* src/objects-debug.cc:
* src/objects-inl.h:
* src/objects-printer.cc:
* src/objects-visiting.cc:
* src/objects.cc:
* src/objects.h: Define a new object type, JSGeneratorObject.

* src/factory.h:
* src/factory.cc (NewFunctionFromSharedFunctionInfo): Generator function
  inital maps construct the new JS_GENERATOR_OBJECT_TYPE objects, not
  generic JSObjects.

* src/runtime.h:
* src/runtime.cc (Runtime_CreateJSGeneratorObject):
* src/arm/full-codegen-arm.cc (Generate):
* src/ia32/full-codegen-ia32.cc (Generate):
* src/x64/full-codegen-x64.cc (Generate): Before visiting generator
  bodies, arrange to construct and return a generator object.

* test/mjsunit/harmony/generators-objects.js: Add tests for the
  properties and prototype of generator objects.

BUG=v8:2355
TEST=mjsunit/harmony/generators-objects

Review URL: https://codereview.chromium.org/13542002

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-15 12:29:44 +00:00
yurys@chromium.org
5206b08451 Remove code that analyzes tos values from tickprocessor 
Assuming that the value on top of stack is return address for a frameless invocation is error-prone. Corresponding logic was removed from profile-generator.cc in r14205 (see https://code.google.com/p/v8/source/diff?spec=svn14205&r=14205&format=side&path=/branches/bleeding_edge/src/profile-generator.cc) and now it is time to remove it from the tick processor.

Since the tos is not used anymore by profiler it is also removed from TickSample.

BUG=None

Review URL: https://codereview.chromium.org/13873009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 11:20:22 +00:00
mstarzinger@chromium.org
75c388e691 Fix detection of indexed properties in Object.defineProperty() 
When defining an indexed property on an Array object, the object's
length property should (perhaps) be updated.  This was done for any
property for which

  ToUInt32(name) == ToNumber(name)

was true, meaning any property name that, when converted to a number,
was an integer in the range [0, 2^32).  The detection should be more
strict; an indexed property is one for which

  ToString(ToUInt32(name)) == name

is true only.

Review URL: https://codereview.chromium.org/13914003

Patch from Jens Lindström <jl@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 08:45:14 +00:00
rossberg@chromium.org
8e8bbc0e6c * src/generator.js: Add methods and intialization for generator meta-objects. 
* src/contexts.h:
* src/bootstrapper.cc (InitializeExperimentalGlobal): Make generator
  meta-objects, and store maps for constructing generator functions
  and their prototypes.

* src/factory.h:
* src/factory.cc (MapForNewFunction): New helper.
  (NewFunctionFromSharedFunctionInfo): Use the new helper.

* src/heap.cc (AllocateFunctionPrototype, AllocateInitialMap): For
   generators, allocate appropriate prototypes and maps.

* src/code-stubs.h:
* src/arm/code-stubs-arm.h:
* src/arm/full-codegen-arm.h:
* src/ia32/code-stubs-ia32.h:
* src/ia32/full-codegen-ia32.h:
* src/x64/code-stubs-x64.h:
* src/x64/full-codegen-x64.h: Allow fast closure creation for generators,
using the appropriate map.

* test/mjsunit/harmony/builtins.js: Add a special case for
  GeneratorFunctionPrototype.prototype.__proto__.

BUG=
TEST=mjsunit/harmony/generators-runtime

Review URL: https://codereview.chromium.org/13192004

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 16:28:19 +00:00
mstarzinger@chromium.org
d311208e12 Move creation of collection prototypes into JavaScript. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14165004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14234 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 13:31:51 +00:00
rossberg@chromium.org
723cd9887f Fix set-up of intrinsic's 'constructor' properties 
Looks so easy...

R=mstarzinger@chromium.org
BUG=229445

Review URL: https://codereview.chromium.org/13880007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 12:27:55 +00:00
yangguo@chromium.org
da5c11a44a Fix JSON.stringify's slow path wrt sliced strings. 
R=mvstanton@chromium.org
BUG=229923

Review URL: https://chromiumcodereview.appspot.com/14107004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14224 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 09:53:00 +00:00
hpayer@chromium.org
2db9e62fc8 Build fast literals in hydrogen. 
BUG=

Review URL: https://codereview.chromium.org/12880017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14211 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-10 13:52:08 +00:00
yangguo@chromium.org
996a80df45 Fix OSR for nested loops. 
R=jkummerow@chromium.org
BUG=v8:2618

Review URL: https://chromiumcodereview.appspot.com/13811014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14202 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-10 09:24:31 +00:00
verwaest@chromium.org
79d18ea332 Let ComputeTarget fail if it skips over NORMAL objects. 
BUG=v8:2595

Review URL: https://chromiumcodereview.appspot.com/13862008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14190 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 16:38:51 +00:00
mvstanton@chromium.org
b7022fd2be Improvements for x87 stack handling 
BUG=

Review URL: https://codereview.chromium.org/13426006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 08:42:57 +00:00
ulan@chromium.org
74839e86d7 Modifications to tests and test tools for Native Client V8. 
BUG=2614

Review URL: https://chromiumcodereview.appspot.com/13638013
Patch from Brad Chen <bradchen@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14178 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 08:39:01 +00:00
yangguo@chromium.org
fe6fc554b0 Fix slow path of JSON.stringifier when GC strikes. 
FlatContent is not GC-safe.

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/13782002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14175 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 08:12:59 +00:00
verwaest@chromium.org
c569d31ff5 Adding standard-compliance tests for array functions. 
BUG=v8:2615

Review URL: https://chromiumcodereview.appspot.com/13601009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 08:09:52 +00:00
verwaest@chromium.org
98d8c9e452 Always check global property cells for readonliness before storing. 
Add check when the global object is the last in the chain.

Review URL: https://chromiumcodereview.appspot.com/13730002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 08:09:05 +00:00
yangguo@chromium.org
9559181b0e Fix worst-case behavior of MergeRemovableSimulates(). 
Currently, when a long series of removable simulates are merged, we do
this by merging them one by one as we find them.  As we merge the value
value lists of the simulates, those lists snowball so that we get a
quadratic complexity wrt runtime and memory consumption.

Instead, we gather simulates that need to be merged, and merge them
backwards starting from the last simulate.

R=jkummerow@chromium.org
BUG=v8:2612

Review URL: https://chromiumcodereview.appspot.com/13649003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-08 17:37:22 +00:00
yangguo@chromium.org
e33b68817b Fix Array.prototype.concat when exceeding array size limit. 
R=verwaest@chromium.org
BUG=v8:581

Review URL: https://chromiumcodereview.appspot.com/13465008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14154 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-05 15:12:59 +00:00
mstarzinger@chromium.org
b6efbd79de Force context allocation for variables in generator scopes. 
* src/scopes.h (ForceContextAllocation, has_forced_context_allocation):
  New interface to force context allocation for an entire function's
  scope.

* src/scopes.cc: Unless a new scope is a function scope, if its outer
  scope has forced context allocation, it should also force context
  allocation.
  (MustAllocateInContext): Return true if the scope as a whole has
  forced context allocation.
  (CollectStackAndContextLocals): Allow temporaries to be
  context-allocated.

* src/parser.cc (ParseFunctionLiteral): Force context allocation for
  generator scopes.

* src/v8globals.h (VariableMode): Update comment on TEMPORARY.

* src/arm/full-codegen-arm.cc (Generate):
* src/ia32/full-codegen-ia32.cc (Generate):
* src/x64/full-codegen-x64.cc (Generate): Assert that generators have no
  stack slots.

* test/mjsunit/harmony/generators-instantiation.js: New test.

BUG=v8:2355
TEST=mjsunit/harmony/generators-instantiation

Review URL: https://codereview.chromium.org/13408005
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-05 13:19:31 +00:00