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2565 Commits

Author SHA1 Message Date
bmeurer@chromium.org
1b1c27d916 Temporarily disable performance.now() in the d8 shell. 
Review URL: https://codereview.chromium.org/133663002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18529 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-10 11:17:57 +00:00
rossberg@chromium.org
014a86ef8c ES6: Add Object.getOwnPropertySymbols 
http://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.getownpropertysymbols

This allows you to get the symbols used as property keys for an object.

  var object = {};
  var sym = Symbol();
  object[sym] = 42;
  assert(Object.getOwnPropertySymbols(object)[0] === sym);

This is only available with --harmony-symbols

BUG=v8:3049
R=rossberg@chromium.org, rossberg
LOG=Y

Review URL: https://codereview.chromium.org/108083005

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-09 15:57:30 +00:00
rossberg@chromium.org
3286bc71e3 Promises: some adaptations to spec 
- Rename Promise.{resolved,rejected,deferred} to Promise.{resolve,reject,defer}
- Rename Promise.one to Promise.race
- Make all failures asynchronous, EXCEPT type errors for resolver
- Disallow non-construct call to Promise constructor
- Don't make combinators go through public this.defer

Also, don't bother using IsCallable.

R=dslomov@chromium.org, yhirano@chromium.org
BUG=

Review URL: https://codereview.chromium.org/99573002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-09 13:00:56 +00:00
ulan@chromium.org
8db7aaa03d Correctly handle instances without elements in polymorphic keyed load/store. 
BUG=331416
TEST=mjsunit/regress/regress-331416.js
LOG=Y
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/121893003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-08 09:57:28 +00:00
ulan@chromium.org
43d1c23e2a Fix selection of popular pages in store buffer. 
BUG=331444
TEST=mjsunit/regress/regress-331444.js
LOG=Y
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/125983002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-08 09:49:37 +00:00
jkummerow@chromium.org
7761059a98 Fix d8's Shell::ReadBuffer after r18227 
BUG=v8:3085
LOG=N
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/127853003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-08 09:48:38 +00:00
mstarzinger@chromium.org
127c660eab Upgrade Number constructor to ES6. 
Add missing constants, predicates and functions to the Number
constructor to have it offer what ES6 now specifies.

That is, extend it with:

 * isInteger(), isSafeInteger()
 * parseInt(), parseFloat()
 * EPSILON, MIN_SAFE_INTEGER, MAX_SAFE_INTEGER

LOG=N
R=mstarzinger@chromium.org
BUG=v8:3082

Review URL: https://codereview.chromium.org/124573002

Patch from Sigbjorn Finne <sigbjornf@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-08 09:09:49 +00:00
mvstanton@chromium.org
fc5834343f Remove flag track-allocation-sites. 
The flag has been on in the build for ~9 months, and we aren't likely to turn it off. The only customer of the flag is a set of tests that want to verify transitioning behavior in isolation. This CL removes the flag and updates those tests to get what they want without the flag.

R=verwaest@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=18385

Review URL: https://codereview.chromium.org/104923010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 15:58:25 +00:00
jarin@chromium.org
acf24331e3 Fixed Lithium environment generation bug for captured objects (created 
by escape analysis). Added several tests that expose the bug.

Summary:
LCodegen::AddToTranslation assumes that Lithium environments are
generated by depth-first traversal, but LChunkBuilder::CreateEnvironment
was generating them in breadth-first fashion. This fixes the
CreateEnvironment to traverse the captured objects depth-first.

Note:
It might be worth considering representing LEnvironment by a list
with the same order as the serialized translation representation
rather than having two lists with a subtle relationship between
them (and then serialize in a slightly different order again).

R=titzer@chromium.org, mstarzinger@chromium.org
LOG=N
BUG=

Review URL: https://codereview.chromium.org/93803003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 14:36:26 +00:00
mvstanton@chromium.org
e3e7daf01c We need to know if a load, store or call IC is assumed 
to be on the global object. Previously, this information
was stored in RelocInfo. A more logical place for this kind
of structural information is ExtraICState. Storing it there
makes it easier for us to gather type feedback from these
sites too.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/96083005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 14:14:34 +00:00
verwaest@chromium.org
4615e9edac Reland v8:18458 "Load the global proxy from the context of the target function." 
BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/104013008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 10:46:39 +00:00
rossberg@chromium.org
2879f2104c Revert "Load the global proxy from the context of the target function." 
This reverts commit https://code.google.com/p/v8/source/detail?r=18458, since it exhibits a bug that breaks some tests.

TBR=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/93863006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18461 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 09:55:25 +00:00
verwaest@chromium.org
5b40c38679 Load the global proxy from the context of the target function. 
BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/111613003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-07 08:21:17 +00:00
ulan@chromium.org
711bcbb0e3 ARM: fix loading of global object in LWrapReceiver. 
Since r16993 the cp register is handled by registers allocator,
and we cannot assume that the cp always contains the context.

BUG=318420
LOG=Y
TEST=test/mjsunit/regress/regress-318420.js
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/121703002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-27 14:38:00 +00:00
ulan@chromium.org
7ac7a7ea99 Fix a race between concurrent recompilation and OSR. 
If concurrent recompilation finishes before OSR, then OSR replaces
the old optimized code without evicting it from the optimized code map.

New functions can get the old optimized code from the optimized code map,
but the old code could be already deoptimized.

BUG=330046
TEST=test/mjsunit/regress-330046.js
LOG=Y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/109033003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-27 09:22:56 +00:00
yangguo@chromium.org
2a4be7067c Refactor the compiling pipeline. 
Goals:
 - easier to read, more suitable identifiers.
 - better distinction between compiling optimized/unoptimized code
 - compiler does not install code on the function.
 - easier to add features (e.g. caching optimized code for osr).
 - remove unnecessary code.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/110203002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 14:30:35 +00:00
yangguo@chromium.org
f7929d2a87 Reland "Handlify concat string and substring." 
This relands commit r17490.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/114943004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 12:37:56 +00:00
yangguo@chromium.org
8c10fc6aee Harmony: implement math.hypot. 
R=jarin@chromium.org
BUG=v8:2938
LOG=N

Review URL: https://codereview.chromium.org/118303002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 11:13:39 +00:00
yangguo@chromium.org
2e2676a843 Harmony: implement Math.log2 and Math.log10. 
R=jarin@chromium.org
BUG=v8:2938
LOG=N

Review URL: https://codereview.chromium.org/119093006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 10:54:47 +00:00
yangguo@chromium.org
cd7d61cfc2 Fix small spec violation in String.prototype.split. 
Also slightly extended the test coverage.

R=rossberg@chromium.org
BUG=v8:3026
LOG=Y

Review URL: https://codereview.chromium.org/119093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18405 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 10:01:22 +00:00
yangguo@chromium.org
c61d07e03f Correctly resolve forcibly context allocated parameters in debug-evaluate. 
R=ulan@chromium.org
BUG=325676
LOG=Y

Review URL: https://codereview.chromium.org/107243006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-23 08:37:03 +00:00
titzer@chromium.org
be32761a67 Improve load elimination handling of transitioning stores. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/106973005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-20 12:12:41 +00:00
rossberg@chromium.org
b882bddcfd Make a strict function's "name" property non-writable. 
Set [[Writable]] to false for the "name" property of strict
functions as well, mirroring what non-strict functions have
it as.

LOG=N
R=rossberg@chromium.org
TEST=mjsunit/regress/regress-270142
BUG=270142

Review URL: https://codereview.chromium.org/99203006

Patch from Sigbjorn Finne <sigbjornf@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18387 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-20 12:06:11 +00:00
hpayer@chromium.org
f583b73b70 Revert "Remove flag track-allocation-sites." 
This reverts commit 6c430da40efe388035504d3603756aa8c46ed1dc.

BUG=

Review URL: https://codereview.chromium.org/109303006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-20 12:04:34 +00:00
mvstanton@chromium.org
e654c88fab Remove flag track-allocation-sites. 
The flag has been on in the build for ~9 months, and we aren't likely to turn it off. The only customer of the flag is a set of tests that want to verify transitioning behavior in isolation. This CL removes the flag and updates those tests to get what they want without the flag.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/104923010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18385 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-20 11:46:31 +00:00
titzer@chromium.org
1f679a58f7 Improve check elimination with branch sensitivity on HCompareObjectEqAndBranch. 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/106733002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18377 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-19 17:42:21 +00:00
jkummerow@chromium.org
3c76ecd732 Fix switch statements with non-Smi integer labels and no type feedback 
BUG=chromium:329709
LOG=Y
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/98643010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-19 14:25:58 +00:00
verwaest@chromium.org
fb7218dc3d Enable optimization of functions with generic switches. 
R=jkummerow@chromium.org, titzer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/110123002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18347 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-18 11:44:38 +00:00
yangguo@chromium.org
213b05b5b9 Fix off-by-one error in AstTyper, part 2. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/112933002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-12 15:19:57 +00:00
jkummerow@chromium.org
48ff79a300 Fix polymorphic inlined calls with migrating prototypes 
LOG=Y
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/104793003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-12 14:57:00 +00:00
ulan@chromium.org
cc401095fb Initialize Date parse cache with SMI instead of double to workaround sharing mutable heap numbers in snapshot. 
This is the only field in the snapshot that was tracked as double.

R=verwaest@chromium.org
TEST=mjsunit/regress/regress-280531.js
BUG=280531
LOG=Y

Review URL: https://chromiumcodereview.appspot.com/112003005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-11 13:11:44 +00:00
yangguo@chromium.org
5bc64b9fa5 Fix off-by-one error in AstTyper. 
This causes the first parameter to be confused with the first
stack local when we collect type information.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/105943007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18296 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-11 11:34:09 +00:00
hpayer@chromium.org
75a84eca0b Added regression test for escape analysis. 
BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/99133011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18290 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-10 15:54:20 +00:00
titzer@chromium.org
3de79abd85 Add a regression test for boolean concatenation in strings. 
BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/106743010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18287 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-10 14:05:25 +00:00
svenpanne@chromium.org
e1db6d86a9 Avoid FP exceptions when doing integer division. 
BUG=v8:3039
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/104003004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18277 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-09 10:15:19 +00:00
mvstanton@chromium.org
b807f4f82f Bugfix: HCheckInstanceType::GetCheckMaskAndTag used an incorrect mask. 
The mask to check for an internalized string was incorrectly formed. Hat
tip to Weiliang Lin for discovering the bug.

BUG=v8:3038
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/108033002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-06 09:43:07 +00:00
verwaest@chromium.org
8a4df124a4 Fix loop side-effects of deoptimizing loops with a nested live OSR loop. 
R=titzer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/106723002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-05 18:31:06 +00:00
machenbach@chromium.org
d8a757c669 Add tests and extension verifying CHECK and ASSERT. 
The new native functions can also be used in blink tests to ensure that V8 asserts are turned on where they should be.

BUG=
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/105953005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18262 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-05 17:26:22 +00:00
yangguo@chromium.org
34f0b745b8 Reland "Implement hyperbolic math functions for ES6." 
BUG=v8:2938
LOG=N
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/104173002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-05 12:36:42 +00:00
yangguo@chromium.org
3e689544af Revert "Implement hyperbolic math functions for ES6." 
BUG=

Review URL: https://codereview.chromium.org/104003002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-04 08:53:17 +00:00
yangguo@chromium.org
d1e0c338f3 Implement hyperbolic math functions for ES6. 
R=jarin@chromium.org
BUG=v8:2938
LOG=Y

Review URL: https://codereview.chromium.org/102023003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-04 08:32:18 +00:00
titzer@chromium.org
1d6710c933 Add some test cases with dead loops. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/98323004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-03 18:04:45 +00:00
verwaest@chromium.org
d4eaae37d1 Check whether the receiver to a keyed-call is actually a heapobject. 
BUG=325225
LOG=n
R=dslomov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/101863004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-03 17:59:31 +00:00
titzer@chromium.org
16c4c14fac Check elimination: Learn from if(CompareMap(x)) on true branch. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/99043002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18210 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-02 18:34:33 +00:00
bmeurer@chromium.org
aa83f2900a Fix invalid assertion with OSR in BuildBinaryOperation. 
BUG=v8:3032
LOG=n
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/98623004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18190 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-02 13:12:07 +00:00
yangguo@chromium.org
3d062847a4 Make sin-cos test case compatible with --always-osr. 
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/98893002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18188 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-02 12:56:54 +00:00
mstarzinger@chromium.org
db915fe97e Handle captured objects in OptimizedFrame::Summarize. 
R=yangguo@chromium.org
BUG=v8:3029
TEST=mjsunit/regress/regress-3029
LOG=N

Review URL: https://codereview.chromium.org/96773002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18187 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-02 12:11:02 +00:00
mvstanton@chromium.org
5ba1304d60 Array builtins need to be prevented from changing frozen objects, and changing structure on sealed objects. 
BUG=299979
LOG=Y
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/80623002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-29 15:22:16 +00:00
yangguo@chromium.org
f235194518 Fix bug in inlining Function.apply. 
R=jkummerow@chromium.org
BUG=323942
LOG=Y

Review URL: https://codereview.chromium.org/95123003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 15:30:17 +00:00
titzer@chromium.org
bbdd21ebb0 Fix load elimination: can only .Equals() GVN-able instructions. 
BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/95193002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 15:27:42 +00:00
dslomov@chromium.org
7372596615 Ensure that length is Smi in TypedArrayFromArrayLike constructor. 
R=jkummerow@chromium.org
BUG=324028
LOG=Y

Review URL: https://codereview.chromium.org/94473002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 15:22:36 +00:00
mstarzinger@chromium.org
d53e38777f Fix missing bounds check in n-arguments Array constructor. 
LOG=N
R=mvstanton@chromium.org
BUG=v8:3027
TEST=mjsunit/regress/regress-3027

Review URL: https://codereview.chromium.org/92103003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 09:29:57 +00:00
yangguo@chromium.org
ea43173cf4 Shorten autogenerated error message. 
R=rossberg@chromium.org
BUG=v8:3019
LOG=Y

Review URL: https://codereview.chromium.org/88393002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18115 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 08:59:45 +00:00
rossberg@chromium.org
e943623b12 Harmony promises 
Based on prototype at

  https://github.com/rossberg-chromium/js-promise

which informed the latest spec draft version at

  https://github.com/domenic/promises-unwrapping/blob/master/README.md

Activated by --harmony-promises.

Feature complete with respect to the draft spec, plus the addition of .when and .deferred methods. Final naming and other possible deviations from the current draft will hopefully be resolved soon after the next TC39 meeting.

This CL also generalises the Object.observe delivery loop into a simplistic microtask loop. Currently, all observer events are delivered before invoking any promise handler in a single fixpoint iteration. It's not clear yet what the final semantics is supposed to be (should there be a global event ordering?), but it will probably require a more thorough event loop abstraction inside V8 once we get there.

R=dslomov@chromium.org, yhirano@chromium.org
BUG=

Review URL: https://codereview.chromium.org/64223010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-27 17:21:40 +00:00
machenbach@chromium.org
c95173b2eb Increase test runner speed. 
Let the test runner preserve the order of test suites to let suites with long running tests run first.

Mark some tests as slow that can now be skipped via --slow-tests=skip.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/88343002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18086 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-26 16:53:04 +00:00
yangguo@chromium.org
ab96631177 Increase precision for base conversion for large integers. 
R=jkummerow@chromium.org
BUG=v8:3025
LOG=Y

Review URL: https://codereview.chromium.org/88583002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-26 15:48:13 +00:00
yangguo@chromium.org
afd8e5a305 Speed up long-running test cases. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/85163003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-26 11:32:39 +00:00
yangguo@chromium.org
4716b292db Make some ARM test cases faster. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/85473004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-26 10:43:44 +00:00
dslomov@chromium.org
c3a4d718ce Generate TypedArrayInitialize builtin in hydrogen. 
R=danno@chromium.org

Review URL: https://codereview.chromium.org/59023003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-25 14:41:46 +00:00
mvstanton@chromium.org
81b22bbf96 A performance regression in array literal creation was caused by refactoring that eliminated a special fast case for shallow arrays. At the same time the general case got a bit slower. This CL restores most of the performance without coding the special fast case. The virtual dispatching is unnecessary because we know what we want to do at compile time. A flag was added to Runtime::CreateArrayLiteral. The flags delivers information about shallowness but also whether or not allocation mementos should be created. This is useful for crankshafted code. 
BUG=v8:3008
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/77293003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18046 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-25 12:41:27 +00:00
yangguo@chromium.org
aa3518a0f3 Make sure files end with exactly one new line and police this in presubmit. 
The changes are (excluding presubmit.py) mechanical. I added the following
lines after the check and iterated the presubmit script until all errors
went away:

f = open(name, "w");
if contents.endswith('\n\n'):
  f.write(contents[0:-1])
else:
  f.write(contents + '\n')

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/82803005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-22 13:50:39 +00:00
ulan@chromium.org
21fb1401bd Restore saved caller FP registers on stub failure 
and preserve FP registers on NotifyStubFailure.

In debug mode, clobber FP registers on each runtime call to increase
chances of catching such bugs.

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/78283002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18000 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-22 10:21:47 +00:00
yangguo@chromium.org
e5f187995d Mark flaky debug test as failing. 
The issues are known. For the time being, we mark it as failing.

R=machenbach@chromium.org
BUG=v8:2921, v8:3005
LOG=N

Review URL: https://codereview.chromium.org/77723008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-20 17:09:17 +00:00
yangguo@chromium.org
2c7ebfa7f0 Increase precision when finding the remainder after division by pi/2. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/66703005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-20 15:04:37 +00:00
svenpanne@chromium.org
8f88467bf6 Removed unused --preallocate-message-memory flag. 
It results in a lot of dead code, and Isolate::PrintStack itself
crashes most of the time when something went wrong earlier.
Furthermore, we have plans do get better information into the
minidump, anyway.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/78003002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-20 12:35:58 +00:00
danno@chromium.org
06c7620302 Fixed crashes exposed though fuzzing. 
The %_OneByteSeqStringSetChar intrinsic expects its arguments to be checked before being called for efficiency reasons, but the fuzzer provided no such checks. Now the intrinsic is robust to bad input if FLAG_debug_code is set.

R=yangguo@chromium.org
TEST=test/mjsunit/regress/regress-320948.js
BUG=chromium:320948
LOG=Y

Review URL: https://codereview.chromium.org/72813004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-19 16:41:07 +00:00
jkummerow@chromium.org
37443768bf Fix register trashing in Emit*ByteSeqStringSetChar 
This is currently not observable without --allow-natives-syntax because all internal usages are safe, but it deserves to be fixed nonetheless.

BUG=chromium:320922
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/67103003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17873 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-19 12:59:09 +00:00
mvstanton@chromium.org
bff41483dc Bugfix: dependent code field in AllocationSite was keeping code objects alive even after context death. 
BUG=320532
LOG=Y
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/62803008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-19 10:17:33 +00:00
dslomov@chromium.org
6749e57f47 Fix data view accessors to throw execptions on offsets bigger than size_t. 
R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 15:16:22 +00:00
dslomov@chromium.org
cb6e8b334d Revert "Fix data view accessors to throw execptions on offsets bigger than size_t." 
This reverts commit r17838 for breaking arm build.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/75213005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 15:05:05 +00:00
dslomov@chromium.org
dd5c7ec89e Fix data view accessors to throw execptions on offsets bigger than size_t. 
R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 14:58:16 +00:00
dslomov@chromium.org
4228132e74 Use mock ArrayBuffer allocator to avoid really allocating 1Gb. 
R=jkummerow@chromium.org
BUG=v8:3014
LOG=N

Review URL: https://codereview.chromium.org/61623009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 14:50:45 +00:00
dslomov@chromium.org
99133912bd Generate DataViewInitialize built-in in hydrogen. 
R=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/66843011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 13:57:49 +00:00
danno@chromium.org
f27f2fa420 Match max property descriptor length to corresponding bit fields 
BUG=v8:3010
R=verwaest@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/72333004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-18 11:44:06 +00:00
mstarzinger@chromium.org
ed034b39e5 Fix bogus allocation limit in allocation folding. 
R=ishell@chromium.org
TEST=mjsunit/allocation-folding

Review URL: https://codereview.chromium.org/73563004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17805 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 18:44:59 +00:00
dslomov@chromium.org
7832aab75c Add suppressions for regress-319722-ArrayBuffer. 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/59093007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 17:40:21 +00:00
jkummerow@chromium.org
c9b41c6995 Limit size of dehoistable array indices 
LOG=Y
BUG=chromium:319835,chromium:319860
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/74113002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 17:24:10 +00:00
dslomov@chromium.org
7936ca39be Limit the size for typed arrays to MaxSmi. 
R=jkummerow@chromium.org
LOG=Y
BUG=319722

Review URL: https://codereview.chromium.org/73943004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17800 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 16:37:15 +00:00
dslomov@chromium.org
c01aa1fc1f Revert "Limit the size for typed arrays to MaxSmi." 
This reverts commit r17798 for allocating too much memroy in tests.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/74093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17799 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 16:25:51 +00:00
dslomov@chromium.org
09ca1318ab Limit the size for typed arrays to MaxSmi. 
R=jkummerow@chromium.org
LOG=Y
BUG=319722

Review URL: https://codereview.chromium.org/73943004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17798 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 16:09:56 +00:00
verwaest@chromium.org
341d405301 Reland and fix "Add support for keyed-call on arrays of fast elements" 
BUG=
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/71783003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 10:52:05 +00:00
bmeurer@chromium.org
2ee5aa951c Fix missing type feedback check for Generic*String addition. 
TEST=mjsunit/regress/regress-crbug-318671
BUG=318671
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/67473007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17772 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-15 09:13:36 +00:00
rafaelw@chromium.org
bdf78a7ad3 Reland [Object.observe] Don't force normalization of elements for observed objects 
Original Issue: https://codereview.chromium.org/29353003/

Note that this version of the patch includes logic for bailing out of compiled ArrayPush/ArrayPop calls if the array is observed (see stub-cache-*)

R=danno@chromium.org
BUG=v8:2946
LOG=N

Review URL: https://codereview.chromium.org/68343016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 21:47:39 +00:00
verwaest@chromium.org
93f2ed48d9 Handle all object types (minus smi) in load/store ICs 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/62953007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 16:25:31 +00:00
machenbach@chromium.org
eef8694a7e [Sheriff] Revert "Add support for keyed-call on arrays of fast elements" 
This reverts commit r17746 for breaking layout tests.

TBR=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/72753002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17751 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 15:00:13 +00:00
verwaest@chromium.org
607a175cbc Add support for keyed-call on arrays of fast elements 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23537067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 13:46:18 +00:00
mvstanton@chromium.org
3cf157b43b Inline zero argument array constructor. 
patch from issue 54583003 (dependent code).

Zero arguments - very easy

1 argument - three special cases:
  a) If length is a constant in valid array length range,
     no need to check it at runtime.
  b) respect DoNotInline feedback on the AllocationSite for
     cases that the argument is not a smi or is an integer
     with a length that should create a dictionary.
  c) if kind feedback is non-holey, and length is non-constant,
     we'd have to generate a lot of code to be correct.
     Don't inline this case.

N arguments - one special case:
  a) If a deopt ever occurs because an input argument isn't
     compatible with the elements kind, then set the
     DoNotInline flag.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/55933002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17741 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 12:05:09 +00:00
danno@chromium.org
28ed69b8fb Fix overflow in TypedArray initialization function 
BUG=chromium:319120
TEST=test/mjsunit/regress/regress-319120.js
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/61753013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-14 06:20:48 +00:00
rossberg@chromium.org
cec8383cff Provide private symbols through internal APIs 
Adds a notion of private symbols, mainly intended for internal use, especially, self-hosting of built-in types that would otherwise require new C++ classes.

On the JS side (i.e., in built-ins), private properties can be created and accessed through a set of macros:

  NEW_PRIVATE(print_name)
  HAS_PRIVATE(obj, sym)
  GET_PRIVATE(obj, sym)
  SET_PRIVATE(obj, sym, val)
  DELETE_PRIVATE(obj, sym)

In the V8 API, they are accessible via a new class Private, and respective HasPrivate/Get/Private/SetPrivate/DeletePrivate methods on calss Object.

These APIs are designed and restricted such that their implementation can later be replaced by whatever ES7+ will officially provide.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/48923002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-13 10:34:06 +00:00
yangguo@chromium.org
e83fd01ce6 Reland "Implement Math.sin, cos and tan using table lookup and spline interpolation." 
This relands r17594 with necessary fixes.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/70003004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17654 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-12 14:43:18 +00:00
yangguo@chromium.org
df9665032e Introduce %_IsMinusZero. 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/63423004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-12 11:53:13 +00:00
bmeurer@chromium.org
6f75e92902 Add initial hydrogenized NewStringAddStub. 
The new stub is enabled via the --new-string-add flag, which is
disabled by default. For now, it's only a stripped down version
of the native StringAddStub, it's still work-in-progress.

BUG=v8:2990
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/61893009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-12 10:21:08 +00:00
mstarzinger@chromium.org
d5cb83f4aa Fix invalid reuse of weak global handle in GetScriptWrapper. 
This fixes a direct usage of a weak global handle in GetScriptWrapper
that just casted it to a strong local handle, while a subsequent GC
might clear it. Handlepocalypse anyone?

R=machenbach@chromium.org
BUG=v8:2988
TEST=mjsunit/regress/regress-2988

Review URL: https://codereview.chromium.org/67273004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-11 16:27:36 +00:00
mstarzinger@chromium.org
c6841f1180 Tame mjsunit/fast-literal after fixing allocations. 
Not that allocations go through Heap::AllocateRaw and actually respect
the allocation timeout, the runtime of this test spiked. This adjusts
the limit to sane values now that the values are actually respected.

R=mvstanton@chromium.org
TEST=mjsunit/fast-literal

Review URL: https://codereview.chromium.org/63603009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17615 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-11 10:22:46 +00:00
ulan@chromium.org
bc4ad49b25 Do not add values to HGraph in Lithium. 
Lithium uses indexes after the maximium value ID in the HGraph as indexes
of virtual registers and assumes that the maximum value ID does not change.

The IsStandardConstant and GetConstantXX functions could add constants to
HGraph, which aliased virtual registers with real values. This could confuse
the register allocator to think that a value in a virtual register is tagged
and to incorrectly set it in the pointer map.

BUG=298269
TEST=mjsunit/regress/regress-298269.js
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/66693002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-08 14:16:34 +00:00
yangguo@chromium.org
9f104a1a3e Revert "Implement Math.sin, cos and tan using table lookup and spline interpolation." 
This reverts commit r17594.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/59153007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-08 13:44:27 +00:00
yangguo@chromium.org
063b7c4ebb Implement Math.sin, cos and tan using table lookup and spline interpolation. 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/50563003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-08 13:10:39 +00:00
mstarzinger@chromium.org
59536de77d Make HCapturedObjects non-deletable for DCE. 
R=jkummerow@chromium.org
BUG=v8:2987
TEST=mjsunit/regress/regress-2987

Review URL: https://codereview.chromium.org/64433002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17569 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-07 16:07:19 +00:00
verwaest@chromium.org
dccc06e132 Disable stress-gc for memento-related test. 
R=mvstanton@chromium.org

Review URL: https://chromiumcodereview.appspot.com/64003004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17559 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-07 12:20:45 +00:00
yangguo@chromium.org
eb550c6da4 Fix y-umlaut to uppercase. 
R=dcarney@chromium.org
BUG=v8:2984

Review URL: https://codereview.chromium.org/59853006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-07 09:08:34 +00:00
mvstanton@chromium.org
cec8548d0e Correct handling of arrays with callbacks in the prototype chain. 
Our generic KeyedStoreIC doesn't handle the case when a callback is
set on array elements in the prototype chain of the object, nor do
we recognize that we need to avoid the monomorphic case if these
callbacks exist.

This CL addresses the issue by looking for dictionary elements in
the prototype chain on IC misses and crankshaft element store
instructions. When found, the generic IC is used. The generic IC is
changed to go to the runtime in this case too.

In general, keyed loads are immune from this problem because they
won't return the hole: discovery of the hole goes to the runtime where
the callback will be found in the prototype chain. Double array loads
in crankshaft can return the hole but only if the prototype chain is
unaltered (we will catch such alterations).

Includes the following patch as well (already reviewed by bmeurer):
Performance regression found in test regress-2185-2.js. The problem was
that the bailout method for TransitionAndStoreStub was not performing
the appropriate transition.

(Review URL for the ElementsTransitionAndStoreIC_Miss change:
https://codereview.chromium.org/26911007)

R=danno@chromium.org

Review URL: https://codereview.chromium.org/35413006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-06 15:45:43 +00:00
bmeurer@chromium.org
980739a29c Improve implementation of HSeqStringSetChar. 
This improves the generated code for HSeqStringSetChar across
all platforms, taking advantage of constant operands whenever
possible. It also drops the unused DefineSameAsFirst constraint
for the register allocator on x64 and ia32, where it caused
unnecessary spills when the string operand was live across the
HSeqStringSetChar instruction.

A new GVN flag StringChars is introduced to express dependencies
between HSeqStringSetChar, HStringCharCodeAt and the upcoming
HSeqStringGetChar (the GVNFlags type is now 64bit in size).

Also improves the test case.

TEST=mjsunit/string-natives
R=mstarzinger@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/57383004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-06 13:09:22 +00:00
rafaelw@chromium.org
13f722cae4 [Object.observe] rename intrinsic change record types for consitency. 
Note the spec now reflects the updated naming:

http://wiki.ecmascript.org/doku.php?id=harmony:observe_spec_changes

R=rossberg@chromium.org, rossberg
BUG=v8:2940

Review URL: https://codereview.chromium.org/46043020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-06 12:14:24 +00:00
machenbach@chromium.org
4539c6ba5f [Sheriff] Mark flaky test on windows. 
It was marked as flaky on linux nosnap, arm and nacl before. Now it's marked universally flaky since windows joined the list.

BUG=v8:2921
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/54713002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 19:29:58 +00:00
yangguo@chromium.org
371265eec4 Revert "Handlify concat string and substring." 
This reverts r17490.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/59973004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 15:36:15 +00:00
yangguo@chromium.org
23d085c691 Handlify concat string and substring. 
R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/50073005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 14:07:07 +00:00
yangguo@chromium.org
a5ed9a71c8 Correctly load message from an Error object. 
R=mstarzinger@chromium.org
BUG=306220

Review URL: https://codereview.chromium.org/46593010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 13:04:51 +00:00
rafaelw@chromium.org
e78081ca1c Make Object.freeze/seal/preventExtensions observable 
Note: spec has been updated here: http://wiki.ecmascript.org/doku.php?id=harmony:observe_spec_changes.

R=rossberg@chromium.org, rossberg
BUG=v8:2975,v8:2941

Review URL: https://codereview.chromium.org/47703003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 12:25:32 +00:00
rafaelw@chromium.org
4a8319c7c6 [Object.observe] Implement implicit notification from performChange 
R=arv@chromium.org, rossberg@chromium.org, rossberg
BUG=v8:2942

Review URL: https://codereview.chromium.org/36313002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 11:23:08 +00:00
jkummerow@chromium.org
2ebfd6e90e Add missing negative dictionary lookup to NonexistentHandlerFrontend 
BUG=v8:2980
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/57433003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-04 14:14:09 +00:00
machenbach@chromium.org
3e6044d3f3 [Sheriff] Mark failing test for nacl port. 
BUG=v8:2978
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/50333005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-31 11:51:59 +00:00
machenbach@chromium.org
230b47a63b [Sheriff] Mark flaky test. 
BUG=v8:2921
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/54423002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-31 11:48:31 +00:00
jkummerow@chromium.org
316271fc35 Fix uint32-to-smi conversion in Lithium 
BUG=chromium:309623
R=vegorov@google.com, yangguo@chromium.org

Review URL: https://codereview.chromium.org/54393002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-31 10:18:51 +00:00
yangguo@chromium.org
3f1a833524 Do not remove HAdd with zero if the other operand is a double. 
The other operand might be minus zero, and -0 + 0 = +0

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/52173003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-30 10:22:52 +00:00
jkummerow@chromium.org
9e88c23cbf ia32: Fix comparisons of two constant double operands when exactly one of them is in new space. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/46883008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17428 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-29 14:34:07 +00:00
svenpanne@chromium.org
acb06df0e9 Tune mjsunit/compiler/expression-trees. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/43703002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-28 07:24:19 +00:00
svenpanne@chromium.org
ee87c867e9 Tune mjsunit/array-functions-prototype-misc 
Again, this brings testing times down quite a bit without losing test
coverage.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/44143003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-28 07:23:27 +00:00
mvstanton@chromium.org
a85c825bb9 The Elements pointer in a JSObject can have a filler map instead of a 
valid fixed array, iff a gc occurred while allocating a fixed array as
part of array construction. Heap verification needs protection against
examining the elements object in this case.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/43383004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-25 12:26:47 +00:00
yangguo@chromium.org
7dd2d6c590 Reland "Make Array.prototype.pop throw if the last element is not configurable." 
This relands r17346.

R=machenbach@chromium.org
BUG=311164

Review URL: https://codereview.chromium.org/43923002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17394 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-25 11:55:56 +00:00
svenpanne@chromium.org
2e2579da1b Tune mjsunit/regexp-global. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/42993004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17387 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-25 08:57:50 +00:00
svenpanne@chromium.org
c2596a257c Temporarily disable mjsunit/regress/regress-2612 to make our tree green again. 
TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/40203002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17379 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 13:30:40 +00:00
svenpanne@chromium.org
7fb61a78d4 Tune mjsunit/regress/regress-2612. 
Lower the bounds to something bearable which would still timeout if we
used a quadratic algorithm.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/39863003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17377 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 13:07:16 +00:00
bmeurer@chromium.org
56a46e591b Add performance.now() to the d8 shell. 
TEST=mjsunit/d8-performance-now
R=hpayer@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=17366

Committed: https://code.google.com/p/v8/source/detail?r=17368

Review URL: https://codereview.chromium.org/32433010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 12:25:40 +00:00
bmeurer@chromium.org
bef9819190 Revert "Fix shared library build after r17368." and "Add performance.now() to the d8 shell.". 
This reverts commit r17372 and r17368 for breaking the shared
library build.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/40043002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17374 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 12:16:00 +00:00
bmeurer@chromium.org
0a90cab56a Add performance.now() to the d8 shell. 
TEST=mjsunit/d8-performance-now
R=hpayer@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=17366

Review URL: https://codereview.chromium.org/32433010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 10:48:18 +00:00
bmeurer@chromium.org
67b4eb9ac1 Revert "Add window.performance.now() to the d8 shell." 
This reverts commit r17366 for breaking the mozilla tests.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/38753006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 10:42:02 +00:00
bmeurer@chromium.org
d07231021e Add window.performance.now() to the d8 shell. 
TEST=mjsunit/d8-performance-now
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/32433010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 09:27:17 +00:00
svenpanne@chromium.org
f2122438e0 Removed long-running obselete test case. 
The test was the 2nd longest-running test case in debug mode, and the
stuff it tests has already been moved long ago to some other place,
which is in turn heavily tested by far simpler and faster things
(%TruncateString etc.).

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/39233003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 08:09:32 +00:00
yangguo@chromium.org
0f564cb1b0 Revert "Make Array.prototype.pop throw if the last element is not configurable." 
This reverts commit r17346.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/39593002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-24 07:48:23 +00:00
yangguo@chromium.org
e25920da19 Make Array.prototype.pop throw if the last element is not configurable. 
Popping an element from an array should call [[Delete]] internal method
and pass true as the second argument (ECMA-262/5.1/#sec-15.4.4.6).
When the last element can't be deleted, throw a Type Error.
Not throwing the error would result in endless loop in the following test.

TEST=var a=[];Object.defineProperty(a,0,{});while(a.length)a.pop();

By the way fix another bug, or else i can't post any issues.
"presubmit.py" throw a "missing a correct copyright header" on windows.
Both the slash and the backslash are valid path separator on windows.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/29513004

Patch from Yanagi <admin@web-tinker.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17346 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-23 16:19:24 +00:00
jkummerow@chromium.org
8259439ae8 Fix HObjectAccess for loads from migrating prototypes 
BUG=chromium:305309
R=danno@chromium.org

Review URL: https://codereview.chromium.org/35173005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17345 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-23 15:15:15 +00:00
hpayer@chromium.org
fbaf016b6d Add a soft-deopt in keyed element access when current IC is pre-monomorphic and no type feedback was collected. 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/32643004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17335 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-23 10:41:21 +00:00
mstarzinger@chromium.org
be3ed75ff3 Fix materialization of captured objects with field tracking. 
R=titzer@chromium.org
BUG=chromium:298990
TEST=mjsunit/compiler/escape-analysis-representation

Review URL: https://codereview.chromium.org/35133003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-22 13:48:54 +00:00
svenpanne@chromium.org
d65cc1e21b Temporarily deactive regress-2185-2 until our array handling is in good shape again. 
BUG=v8:2950
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/30443005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17320 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-22 13:02:04 +00:00
svenpanne@chromium.org
dd74f5aa08 Removed obsolete unit tests. 
As discussed offline, these tests don't test what they were supposed to
test anymore and were the longest running ones.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/32433009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17317 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-22 11:26:07 +00:00
titzer@chromium.org
a255312491 Handle misaligned loads and stores in load elimination. Do not track misaligned loads and be conservative about invalidating misaligned stores. Add more tests for number conversion to string (NumberToStringStub exhibits misaligned loads) 
BUG=v8:2934
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/28383003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-21 13:33:03 +00:00
yangguo@chromium.org
2d6dab1f2e Harmony: implement Math.trunc. 
BUG=v8:2938
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/28793002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17286 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-21 11:15:11 +00:00
yangguo@chromium.org
575438518c Harmony: implement Math.sign. 
R=dslomov@chromium.org
BUG=v8:2938

Review URL: https://codereview.chromium.org/28723002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-21 09:16:31 +00:00
titzer@chromium.org
4d0f2cdd3b Implement global load elimination based on flow engine. 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/27148004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-18 14:28:24 +00:00
rafaelw@chromium.org
ce2c9b1db1 Prevent changes to hidden properties from being observable via Object.observe 
This addresses the leak that mstarzinger points out (https://codereview.chromium.org/26390003/) and includes the test.

Note that this adds a test that observing changes to the empty-string property remains possible.

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

Review URL: https://codereview.chromium.org/26592012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-17 20:49:45 +00:00
svenpanne@chromium.org
882778bf09 Make it possible to run a test only in the standard variant. 
Use this for mjsunit/unicode-case-overoptimization, which is not
related to Crankshaft at all and takes ages.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/27704002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-17 13:09:28 +00:00
mstarzinger@chromium.org
0a2b4ecdcc Add regression test for optimized count operation. 
This is a regression test for a bug with handling of count operations
that target a JavaScript accessor on the prototype chain in Crankshaft.

R=jkummerow@chromium.org
BUG=chromium:306851
TEST=mjsunit/regress/regress-crbug-306851

Review URL: https://codereview.chromium.org/27702002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-17 12:48:28 +00:00
mstarzinger@chromium.org
3e0f828b8f Revert "TransitionAndStoreStub bailout needs to transition (and store)." 
This reverts commit r17216 breaking fast/js/cross-frame-bad-time.html test.

R=mvstanton@chromium.org
TEST=webkit:fast/js/cross-frame-bad-time.html

Review URL: https://codereview.chromium.org/27516002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-16 14:17:31 +00:00
mvstanton@chromium.org
8f9f192f6e AllocationSites for all literals 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/24250005


Review URL: https://codereview.chromium.org/27366003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-16 08:10:36 +00:00
mvstanton@chromium.org
f4edc076d8 Revert "AllocationSites for all literals" 
This reverts commit r17219 due to WebKit failures.

R=mstarzinger@chromium.org
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/26539010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-15 15:35:23 +00:00
mvstanton@chromium.org
362c0cfbca AllocationSites for all literals 
BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/24250005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-15 14:52:58 +00:00
mvstanton@chromium.org
3769a2d24d TransitionAndStoreStub bailout needs to transition (and store). 
Performance regression found in test regress-2185-2.js. The problem was
that the bailout method for TransitionAndStoreStub was not performing
the appropriate transition.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/26911007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-15 12:42:03 +00:00
dslomov@chromium.org
5ccd697875 Do not look up ArrayBuffer on global object in typed array constructor. 
BUG=v8:2931
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/27238009

Patch from Ben Noordhuis <info@bnoordhuis.nl>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17215 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-15 11:27:12 +00:00
yangguo@chromium.org
71ba8c5fb4 Retire concurrent recompilation delay for non-stress testing. 
Instead, we block concurrent recompilation until unblocked. This makes
affected tests more predictable and run shorter.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26758003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17199 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-14 14:15:22 +00:00
olivf@chromium.org
93d4fbd2ee Truncate booleans to 0/1 in truncating t-to-i. 
Thanks to weiliang.lin2@gmail.com for discovering the issue.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/26824002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-11 15:13:12 +00:00