AuroraMiddleware/v8
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6759 Commits

Author SHA1 Message Date
jarin@chromium.org
23df66ee24 Add more missing deopts 
BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/639883002

Cr-Commit-Position: refs/heads/master@{#24886}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-26 10:25:48 +00:00
dslomov@chromium.org
08ee4d3a5c Add remaining @@toStringTag symbols to builtins 
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/664333003

Patch from Caitlin Potter <caitpotter88@gmail.com>.

Cr-Commit-Position: refs/heads/master@{#24885}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24885 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 19:29:10 +00:00
adamk@chromium.org
c9ea8d6512 SimpleSlice now calls [[Get]] before [[Has]] when generating copy 
SparseSlice does not need this (non-optimal) reordering since its
callers guarantee that [[Get]] has no side effects on the passed-in array.

BUG=v8:3643
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/674003002

Cr-Commit-Position: refs/heads/master@{#24884}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 18:08:13 +00:00
adamk@chromium.org
02d37b8f10 Widen definition of %HasComplexElements() to include non-enumerability 
This avoids using the Sparse methods on objects with non-enumerable elements,
which can cause the 'enumerable: false' bit to get lost in the operation.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/672323003

Cr-Commit-Position: refs/heads/master@{#24883}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 18:04:13 +00:00
baptiste.afsa@arm.com
878ff91c8f [arm64] Use logical immediates when matching tst instructions. 
R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/668633003

Cr-Commit-Position: refs/heads/master@{#24882}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 15:29:44 +00:00
dslomov@chromium.org
9b74675e0d Check string literals with escapes in PreParserTraits::GetSymbol() 
LOG=Y
BUG=v8:3606
R=arv@chromium.org, marja@chromium.org

Review URL: https://codereview.chromium.org/615813004

Patch from Caitlin Potter <caitpotter88@gmail.com>.

Cr-Commit-Position: refs/heads/master@{#24880}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24880 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 15:02:41 +00:00
titzer@chromium.org
21013d2641 Fix bugs in Scheduler hoisting and RPO loop bounds computations. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/677683002

Cr-Commit-Position: refs/heads/master@{#24877}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 13:57:39 +00:00
mstarzinger@chromium.org
a9a7979e9e Add Schedule::InsertBranch to fuse control flow graphs. 
R=jarin@chromium.org
TEST=cctest/test-schedule/TestScheduleInsertBranch

Review URL: https://codereview.chromium.org/675983002

Cr-Commit-Position: refs/heads/master@{#24876}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 13:48:18 +00:00
sigurds@chromium.org
df9ac2c165 Add Float64Floor, Float64Ceil, Float64RoundTruncate, Float64RoundTiesAway operators. 
These operators are not supported by any backends yet, and a backend is free to not support them.

R=bmeurer@chromium.org
TEST=unittest/machine-operator

Review URL: https://codereview.chromium.org/668173002

Cr-Commit-Position: refs/heads/master@{#24874}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 13:12:12 +00:00
yangguo@chromium.org
0e1124842a Tweaks to the code serializer. 
- consider the source string as a special sort of back reference.
- use repeat op code for more root members.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/674883002

Cr-Commit-Position: refs/heads/master@{#24871}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24871 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 13:12:09 +00:00
bmeurer@chromium.org
548fb46331 [x86] Fix register constraints for multiply-high. 
TEST=mjsunit/compiler,unittests
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/671393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 09:36:40 +00:00
yangguo@chromium.org
e6ac285bd3 Log code event for deserialized code. 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/663453005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24861 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 08:37:03 +00:00
yangguo@chromium.org
518ddc9317 Make block writes in the serializer more efficient. 
And also fix a OOB read in SerializeExternalString.

R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/671633004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 07:29:39 +00:00
verwaest@chromium.org
8189922e1e Limit the number of transitions allowed per hidden class. 
Each time a transition is added to a hidden class, the whole
transitions array must be copied, which causes poor performance
in some circumstances.  This change limits the maximum size of
the transition array, avoiding this behavior in the pathological
case.  For example, this improves the performance of the EtchMark
benchmark by nearly 60%.

BUG=v8:3616
LOG=
R=verwaest@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/635883003

Patch from Kevin M. McCormick <mckev@amazon.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 05:29:54 +00:00
adamk@chromium.org
0ef073d556 Fix sparse versions of Array slice/splice to use [[DefineOwnProperty]] to generate return value 
BUG=chromium:423633
LOG=n
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/673893002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 21:13:29 +00:00
adamk@chromium.org
5f1ae66d56 Narrow cases where Sparse/Smart versions of Array methods are used 
Added a new %HasComplexElements runtime function (meaning elements that are
non-writable, non-configurable, or have getters and setters) and use it
in UseSparseVariant to filter out cases where the sparse optimizations
can cause V8 to fall out of spec compliance.

Renamed SmartMove/SmartSlice to SparseMove/SparseSlice and guarded them
with the new and improved UseSparseVariant.

These two changes combine let us pass nearly every test in bug-2615.js,
as well as fixing reverse and join on sparse arrays.

Note that there are various test changes in this patch that correct existing
tests to match the correct-by-spec behavior.

This patch depends on https://codereview.chromium.org/666883009, which
better-aligns the behavior of SmartMove with SimpleMove.

BUG=v8:2615,v8:3612,v8:3621
LOG=y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/656423004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 18:21:50 +00:00
adamk@chromium.org
f3c3697521 Change SmartMove no-op behavior to match SimpleMove (and ES6 spec) 
The previous behavior, which caused Array.prototype.unshift() (with no args)
to have side-effects, no longer matches the spec (ES6 changed the no-arg behavior
in April 2014). The new SmartMove behavior is also compatible with current
versions of Firefox.

This is a baby step towards getting rid of SmartMove; it isolates the test
change in this patch, instead of lumping it in confusingly with all the
other test updates necessary for moving away from SmartMove.

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/666883009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 17:46:34 +00:00
ishell@chromium.org
5509cc2c07 Fixed mutable heap numbers leak in JSON parser. 
BUG=chromium:423687
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/669403002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 14:41:39 +00:00
jarin@chromium.org
c7685a59f0 [turbofan] Use range types to type and lower arithmetic ops. 
This is based on Georg's work on typing arithmetic operations (https://codereview.chromium.org/658743002/).

Instead of weakening to bitset types, we weaken to the closest 2^n
limit if we see that we are re-typing a node with a range type (which
means that the node can be part of a cycle, so we might need
to speed up the fixpoint there).

BUG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/636283009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 14:40:43 +00:00
dslomov@chromium.org
96105a90fc harmony-scoping: Allow 'const' iteration variables in strict mode. 
R=rossberg@chromium.org
BUG=v8:2506
LOG=N

Committed: https://code.google.com/p/v8/source/detail?r=24834

Review URL: https://codereview.chromium.org/671913002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 12:30:20 +00:00
dslomov@chromium.org
707ed29a51 Revert "harmony-scoping: Allow 'const' iteration variables in strict mode." 
This reverts commit r24834 for breaking debug tests.

TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/672193002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 11:55:19 +00:00
yangguo@chromium.org
aaa104c8da De-virtualize snapshot sink. 
R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/669133003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 11:23:57 +00:00
dslomov@chromium.org
b54f7d3c46 harmony-scoping: Allow 'const' iteration variables in strict mode. 
R=rossberg@chromium.org
BUG=v8:2506
LOG=N

Review URL: https://codereview.chromium.org/671913002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 11:18:50 +00:00
bmeurer@chromium.org
80836787a3 [turbofan] Improve code generation for inline comparisons with zero. 
TEST=cctest,unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/669133004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 10:22:06 +00:00
dcarney@chromium.org
5f83dabb60 [turbofan] split compilation stats off from HStatistics and track high water marks 
R=jarin@chromium.org

BUG=

Review URL: https://codereview.chromium.org/669053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24830 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 09:14:35 +00:00
dslomov@chromium.org
98c208447d Classes: implement 'new super'. 
R=ishell@chromium.org, arv@chromium.org
BUG=v8:3330
LOG=N

Committed: https://code.google.com/p/v8/source/detail?r=24822

Review URL: https://codereview.chromium.org/665773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 08:32:23 +00:00
dslomov@chromium.org
6442348d6e Revert "Classes: implement 'new super'." 
This reverts commit r24822 for breaking debug compilation.

TBR=ishell@chromium.org

Review URL: https://codereview.chromium.org/662253003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 08:21:30 +00:00
dslomov@chromium.org
99cafa0d5a Classes: implement 'new super'. 
R=ishell@chromium.org, arv@chromium.org
BUG=v8:3330
LOG=N

Review URL: https://codereview.chromium.org/665773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24822 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 08:11:51 +00:00
dcarney@chromium.org
887b3ca079 Cleanup ConsStringIteratorOp. 
R=yangguo@chromium.org

BUG=

Review URL: https://codereview.chromium.org/663313003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 05:57:01 +00:00
bmeurer@chromium.org
c5b00bf6df Skip webkit/array-iterate-backwards for TF. 
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/672113002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 04:18:17 +00:00
bmeurer@chromium.org
85e86ad745 Skip webkit/dfg-int-overflow-in-loop for TF. 
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/652183005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-23 04:16:22 +00:00
rodolph.perfetta@arm.com
ecbfc43f37 ARM64: Fix stack manipulation. 
Builtins::Generate_StringConstructCode was claiming stack space instead of
giving it back.

BUG=chromium:425585
LOG=Y
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/672623003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24815 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 18:24:20 +00:00
adamk@chromium.org
98e0eac76f Speed up creation of Objects whose prototype has dictionary elements 
This speeds up both the case from the bug (using Object.create) but also
takes care ofthe "{ __proto__: obj  }" syntax, which was previously (and
erroneously) being treated the same as setting the prototype dynamically
from script using the __proto__ setter or Object.setPrototypeOf.

BUG=chromium:422754
LOG=y
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/667253002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 18:16:35 +00:00
adamk@chromium.org
04db7c8793 Fix {get,set}ter-on-elements tests to run through all creation functions 
setter-on-elements had the wrong length hardcoded in a for loop over the
creation functions (getter-on-elements had the right length, but seemed
worth future-proofing).

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/643143005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24813 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 17:21:53 +00:00
titzer@chromium.org
5a1774268a Add Terminate operator. 
Terminate is need for non-terminating loops (NTLs) that can appear after optimizing control flow. It gathers the control and effect(s) from a NTL and connects them to end so that they are not dead-code removed.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/651843004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 17:15:38 +00:00
wingo@igalia.com
6c9bab5c74 Array.prototype.{reduce, reduceRight}: Wrong order of operations when determining initial value. 
BUG=v8:3534
LOG=
R=svenpanne@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/614733002

Patch from Diego Pino <dpino@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 13:13:19 +00:00
machenbach@chromium.org
5680786c21 Move js perf tests to a common root on the perf dashboard. 
BUG=
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/667373004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 13:04:08 +00:00
bmeurer@chromium.org
6619a7975d [turbofan] Add support for deferred code. 
Branch can now have an optional hint, when the condition is
likely true or false, and if such a hint is present the other
basic block will be marked as deferred and placed at the end
of the function.

We currently use this feature for tagging int32/uint32 in
change lowering, and for load/store bounds checks in simplified
lowering.

TEST=cctest,unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/642883003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 11:24:55 +00:00
dslomov@chromium.org
1efcf09375 Perf tests for fromCodePoint and codePointAt. 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/670463005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 11:08:42 +00:00
sigurds@chromium.org
81420f003b Add FRINTP (round towards positive infinity) instruction. 
Macro Assember, assembler and simulator for ARM64 were missing FRINTP.

R=rodolph.perfetta@arm.com, ulan@chromium.org

Review URL: https://codereview.chromium.org/669923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24800 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 11:06:22 +00:00
dslomov@chromium.org
b664c12235 Flatten the string in StringToDouble function. 
R=yangguo@chromium.org
BUG=chromium:425551
LOG=N

Review URL: https://codereview.chromium.org/654763003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24796 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 08:19:05 +00:00
jochen@chromium.org
4669a5cfb9 Really disable test when running with optimize for size 
R=bmeurer@chromium.org
TBR=bmeurer@chromium.org
LOG=n
BUG=none

Review URL: https://codereview.chromium.org/652903008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 08:15:47 +00:00
jochen@chromium.org
b57976051b Fix newly added test to not run with optimize-for-size 
TBR=ulan@chromium.org
BUG=none
LOG=n

Review URL: https://codereview.chromium.org/673593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 07:36:12 +00:00
jochen@chromium.org
8f7a455fe2 Add support for a target new space size 
When this flag is set, we will commit additional pages up until the
target size before doing a scavenge.

I made sure that all tests pass when a target size of 16MB is set.

BUG=v8:3626
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/652543007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-22 06:58:38 +00:00
adamk@chromium.org
b6d0113abc Array.prototype.{slice,splice} should use [[DefineOwnProperty]] to generate return value 
BUG=chromium:423633
LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/649063003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 17:46:42 +00:00
dslomov@chromium.org
37bd114925 Update ObjectToString to Harmony-draft algorithm 
Updates Object.prototype.toString() to use algorithm described in harmony drafts.

Currently, the behaviour is essentially the same as ES262's version, however this changes when internal structures
such as Promise make use of symbolToStringTag (as they are supposed to, see v8:3241), and changes further once
Symbol.toStringTag is exposed publicly.

BUG=v8:3241, v8:3502
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/546803003

Patch from Caitlin Potter <caitpotter88@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 17:21:32 +00:00
dcarney@chromium.org
1c5fafe890 [turbofan] use ZonePool in most places in the compiler pipeline a temp zone is used. 
R=jarin@chromium.org, bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/663333003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24779 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 14:44:50 +00:00
titzer@chromium.org
12a82ef32c Fix AstGraphBuilder for loops like for(;;). 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/640203004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 14:17:08 +00:00
mvstanton@chromium.org
8330178b4c The issue is that by handling strings with map/handler pairs instead of a special 
version of the keyed load stub (https://code.google.com/p/v8/source/detail?r=24661),
I allowed polymorphism between string and non-string types in the IC. Before, the
IC would go generic.

Then, at crankshaft time, we special case when we only saw strings. The error
here is that crankshaft can't emit code that handles polymorphism between string
and non-string types. The choice is either to get that to happen (I don't deem
this necessary from a performance point of view, an IC with such type feedback
before would have gone generic), or simply check for the case of "polymorphic
with some string maps" and require crankshaft to go generic. I'll do the latter.

BUG=425519
LOG=N
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/667923004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 13:04:51 +00:00
jochen@chromium.org
2147d5a145 Use an idle notification of 0ms as hint that a GC after context disposal is triggerd 
BUG=none
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/671513006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24773 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-21 12:56:52 +00:00