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508 Commits

Author SHA1 Message Date
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
svenpanne@chromium.org
00ed79fb8b Move FindCodeObject from Heap to Isolate. 
This removes the isolate=>heap=>isolate nonsense and has the additional bonus
that it re-enables printing of code objects in GDB. NOT: To make the latter
work, one has to adapt GDB any macros using FindCodeObject! Keeping things as it
is and outlining Isolate::heap() was not really an option...

Side note: Currently we are lucky that we still have Isolate::Current()
available in GDB, although it is marked as INLINE. :-}

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/19785004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15770 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 09:39:01 +00:00
mvstanton@chromium.org
b9f0c06ab2 The gc should be able to traverse all AllocationSites for decision making. The sites are threaded into a weak list. Special problems include: 
* Allocations of AllocationSites occur in generated code, so generated code needs to be able to add to the list. For now I have a special hydrogen instruction, though it would be nice to use general purpose instructions.
* The snapshot contains AllocationSites, and these need to be re-threaded into the list on deserialization.

Something nice is that the AllocationSites are only created in old space, so a special new space visitor isn't required.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18173013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 11:50:24 +00:00
adamk@chromium.org
625a0e9759 Add map transition for observed objects 
This patch enables objects to undergo a single transition when they become observed, avoiding the need to create a new map for every observed objects.

Observed objects which become unobserved does not cause another map transition and unobserved does not clear the observed bit on the map. The unobserved object.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/18221006

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-13 00:20:40 +00:00
mvstanton@chromium.org
67d9051bcd Create AllocationSite objects, pointed to by AllocationSiteInfo. 
This creates a platform where we can do additional things with allocation sites,
other than just aid in reducing array transitions.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/15094018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 10:02:16 +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
danno@chromium.org
d00a14392d Add trampoline to enable pointer -> handle code calls 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18550002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 09:36:11 +00:00
bmeurer@chromium.org
7a820bec9d Properly cleanup the transcendental subcaches. 
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18487002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-02 08:27:27 +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
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
jkummerow@chromium.org
c7a9bffbcf Clean up the usage of V8_TARGET_ARCH_${arch} and V8_HOST_ARCH_${arch} 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18037002

Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 15:34:48 +00:00
loislo@chromium.org
53eb53f4af CPUProfiler: It is not clear why we are using Handle<Object> for scriptId. Lets flip it into Smi/int. 
By the nature it is integer. So we can work with it as with Smi internaly and use int in the external API.

BUG=none
TEST=existing tests
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/17600006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-25 14:57:47 +00:00
bmeurer@chromium.org
66efb96621 Fix compilation error introduced with r15287. 
REGEXP was added to Code::Kind after TO_BOOLEAN_IC, but NUMBER_OF_KINDS,
which is used as array size for table[] in ReportCodeKindStatistics, was
still TO_BOOLEAN_IC + 1 (indirectly via LAST_IC_KIND).

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/17636003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-25 09:09:25 +00:00
dslomov@chromium.org
51f3e2f055 Do not use weak handles for ArrayBuffers. 
Instead of allocating weak handles to free ArrayBuffer backing store, dispose of memory while walking the weak list of ArrayBuffers on GC.

Also, free all array buffers on isolate tear-down.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16950013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15205 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 11:53:30 +00:00
danno@chromium.org
61a23ceb4d Refactor only: Rename JSGlobaPropertyCell to PropertyCell 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/17064002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 16:06:12 +00:00
ulan@chromium.org
f751e89416 Reland "Make more GCs in idle notification handler." 
Fix performance regression on benchmarks by filtering out short idle
notifications.

R=hpayer@chromium.org
BUG=241815

Review URL: https://chromiumcodereview.appspot.com/17005005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:24:03 +00:00
danno@chromium.org
1b89cbf817 Separate Cell and PropertyCell spaces 
This makes it possible to store additional information on property cells, for example Type and optimized Code dependencies.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16631002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 15:03:44 +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
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
dslomov@chromium.org
b3282c290e Recording array buffer views. 
R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/15562008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15000 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 10:52:11 +00:00
rossberg@chromium.org
372457a793 Allow smis for singleton types 
To that end, introduce a generic Box struct.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16562003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14987 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 15:40:28 +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
ulan@chromium.org
87b2f01873 Revert "Make more GCs in idle notification handler." because of performance 
regression.

R=jkummerow@chromium.org
BUG=246141

Review URL: https://chromiumcodereview.appspot.com/15864010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14974 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 12:24:05 +00:00
mstarzinger@chromium.org
be243df7ca Prevent excessive processing of weak maps while marking. 
This makes sure processing of Harmony weak maps is only triggerd twice
during a mark-compact collection. Note that the processing itself still
is a fix-point iteration with quadratic worst-case time.

R=hpayer@chromium.org
BUG=v8:2699

Review URL: https://codereview.chromium.org/16286018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 17:20:06 +00:00
yangguo@chromium.org
7f8a3d803c Make assertion scopes thread safe. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15691017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-03 15:32:22 +00:00
ulan@chromium.org
fed3dad224 Make more GCs in idle notification handler. 
When counting GCs in idle round, count only GC that were directly triggered by the idle notification handler.

R=hpayer@chromium.org
BUG=241815

Review URL: https://chromiumcodereview.appspot.com/15737007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 11:44:54 +00:00
hpayer@chromium.org
5b469a6f41 Added old data space allocation infrastructure for pretenuring. 
BUG=

Review URL: https://codereview.chromium.org/16099004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 09:38:28 +00:00
hpayer@chromium.org
0d5dd777aa Simplifying GC heuristics, deleted old generation allocation limit. 
BUG=

Review URL: https://codereview.chromium.org/14700006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 15:11:43 +00:00
hpayer@chromium.org
2cbc81a5ce Move global pretenuring flag check to ShouldGloballyPretenure(). 
BUG=

Review URL: https://codereview.chromium.org/15734007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14763 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 08:17:03 +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
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
hpayer@chromium.org
c84ac4e260 Revert "Simplifying GC heuristics, deleted old generation allocation limit." 
This reverts commit 14731029.

BUG=

Review URL: https://codereview.chromium.org/14750013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 16:34:56 +00:00
hpayer@chromium.org
b3eff8cb37 Simplifying GC heuristics, deleted old generation allocation limit. 
BUG=

Review URL: https://codereview.chromium.org/14731029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 10:00:05 +00:00
hpayer@chromium.org
03671ae9ef Increase old generation space significantly if we observe a high promotion rate. 
BUG=

Review URL: https://codereview.chromium.org/15104004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 09:21:19 +00:00
dslomov@chromium.org
2ff3e2e0f4 Preallocate transitioned maps for TypedArrays. 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/15172003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 15:23:53 +00:00
hpayer@chromium.org
a025371c4a Simplifying GC heuristics, deleted old generation limit factor. 
Review URL: https://codereview.chromium.org/15114003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 11:08:59 +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
hpayer@chromium.org
ce3345123c Pretenure ASCII cons string in high promotion mode. 
BUG=

Review URL: https://codereview.chromium.org/14451003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14540 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 10:36:16 +00:00
dcarney@chromium.org
2e856d2c16 expose AssertNoAllocation to api 
R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14625003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 20:28:02 +00:00
dcarney@chromium.org
0a32b57594 HasOnlyAsciiChars can return incorrect results. Fixup usages and rename. 
R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14509012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 11:34:44 +00:00
yangguo@chromium.org
49ce7642be Do not dereference handles during relocation. 
R=hpayer@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/13982023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 07:35:07 +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
hpayer@chromium.org
7ed7af2f9f Tell the GC prologues to construct RetainedObjectInfos only when needed. 
The GC prologue is called by the GC, but also by the heap snapshotter. The
RetainedObjectInfos are only needed by the heap snapshotter, so it's wasteful to
construct them always. (And it will be even more wasteful when Blink migrates to
the new GC APIs, since after that point it no longer knows about object groups.)

BUG=

Review URL: https://codereview.chromium.org/14471028
Patch from Marja Hölttä <marja@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14439 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 12:08:10 +00:00
dslomov@chromium.org
44f2d534b1 First cut at API for ES6 ArrayBuffers 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/13958007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14438 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 12:02:23 +00:00
hpayer@chromium.org
e93d12a470 Grow the old generation faster in high promotion mode. 
BUG=

Review URL: https://codereview.chromium.org/14493011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 09:17:07 +00:00
ulan@chromium.org
ff9ceebe2f Add a flag to deoptimize all functions every n garbage collections. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14091013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14395 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 15:21:11 +00:00
danno@chromium.org
bc04544f02 Replace math.h with cmath 
This will make it easier to use other STL headers in the future

Review URL: https://codereview.chromium.org/14362023

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 13:26:47 +00:00