mstarzinger@chromium.org
3e8effb0bd
Fix migration checks and extend them to the Scavenger.
...
R=hpayer@chromium.org
Review URL: https://codereview.chromium.org/23060018
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-21 18:31:13 +00:00
mstarzinger@chromium.org
3e4fbd0e85
Mark HStringCompareAndBranch as potentially causing GCs.
...
This also adds a %SetAllocationTimout runtime function which helps to
write regression tests that need to trigger a GC at a certain point in
program execution.
R=hpayer@chromium.org
BUG=chromium:274438
TEST=mjsunit/regress/regress-crbug-274438
Review URL: https://codereview.chromium.org/22933006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16205 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-16 15:10:07 +00:00
bmeurer@chromium.org
770e6ee8b8
Fix/unify root handling in code generation.
...
R=danno@chromium.org
Review URL: https://codereview.chromium.org/22670004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-09 13:43:46 +00:00
mstarzinger@chromium.org
63defee477
First implementation of allocation elimination in Hydrogen.
...
This change implements a simple data-flow analysis pass over captured
objects to the existing escape analysis. It tracks the state of values
in the Hydrogen graph through CapturedObject marker instructions that
are used to construct an appropriate translation for the deoptimizer to
be able to materialize these objects again.
This can be considered a combination of scalar replacement of loads and
stores on captured objects and sinking of unused allocations.
R=titzer@chromium.org
TEST=mjsunit/compiler/escape-analysis
Review URL: https://codereview.chromium.org/21055011
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-07 11:24:14 +00:00
yangguo@chromium.org
ef8d394f12
Re-reland "Flush parallel recompilation queues on context dispose notification"
...
BUG=
R=hpayer@chromium.org , mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/22379002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-07 09:33:09 +00:00
dcarney@chromium.org
207396101f
introduce eternal handles
...
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21133006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16045 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 09:46:23 +00:00
hpayer@chromium.org
9e8058146e
Cleaning up HAllocate space and double alignment selection.
...
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/21074004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16000 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-01 08:34:36 +00:00
verwaest@chromium.org
e53471dbaa
Remove elements transitions from the transition array.
...
This is preparatory work for reordering the transition tree. Since elements transitions will be at the root of the transition tree, runtime access to them is slow since we have to walk the transition tree backwards first. Hence remove the optimization that promoted them to a special field, requiring a pointer (mostly NULL) in every non-simple transition array.
R=titzer@chromium.org
Review URL: https://chromiumcodereview.appspot.com/21228002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15993 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-31 17:08:50 +00:00
mstarzinger@chromium.org
3202e1d795
Re-revert "Flush parallel recompilation queues on context dispose notification" (r15883).
...
R=danno@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21156009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-30 08:35:48 +00:00
jochen@chromium.org
0826f85a02
Put object templates of the i18n extension on the heap object.
...
Using function local statics doesn't work, as we need the templates per
isolate.
I'm not #ifdef'ing the definitions out, because kEmptyStringRootIndex
changes depending on whether the two additional slots are present or
not.
BUG=v8:2745
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/20299002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-25 16:01:02 +00:00
yangguo@chromium.org
14e205e9cf
Reland "Flush parallel recompilation queues on context dispose notification."
...
BUG=
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/19500022
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-25 15:01:23 +00:00
yangguo@chromium.org
6cbe01edae
Revert "Flush parallel recompilation queues on context dispose notification."
...
This reverts r15833.
R=jkummerow@chromium.org
BUG=
Review URL: https://codereview.chromium.org/19647018
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15841 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-24 07:45:54 +00:00
hpayer@chromium.org
c3c0be7160
Simplified large object allocation strategy.
...
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/19934006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-23 20:01:38 +00:00
yangguo@chromium.org
f70cc6e114
Flush parallel recompilation queues on context dispose notification.
...
R=jkummerow@chromium.org
BUG=
Review URL: https://codereview.chromium.org/19956004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15833 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-23 15:15:00 +00:00
yangguo@chromium.org
925375520c
Rip out infrastructure for deferred stack trace formatting.
...
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/19971002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-23 07:41:46 +00:00
mstarzinger@chromium.org
ce81b0d3a8
ES6: Implement WeakSet
...
WeakSets work similar to ordinary Sets but the value (which must be an
object) is held weakly.
This is available under --harmony-collections
BUG=v8:2785
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/19678023
Patch from Erik Arvidsson <arv@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-22 08:32:24 +00:00
rossberg@chromium.org
ac2b8c04f3
Proxies: Make 'with' work, plus minor other fixes
...
Also fixes internal exception handling in several places of the runtime.
R=yangguo@chromium.org
BUG=v8:1543
Review URL: https://codereview.chromium.org/19384004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-19 14:07:23 +00:00
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