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Author SHA1 Message Date
alexeif@chromium.org
48777a7f5b Split nodes and edges into separate arrays in heap snapshot serialization. 
Review URL: https://chromiumcodereview.appspot.com/10037004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 12:50:48 +00:00
erik.corry@gmail.com
5d164e4c7c MIPS: Implement CheckNotCharacterAfterMinusAnd. This is a commit of http://codereview.chromium.org/9721011/ for Daniel Kalmar 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11314 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 11:47:31 +00:00
mstarzinger@chromium.org
0803c4dfbf Fix r11306 to use external references on X64. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10079004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11313 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 11:25:13 +00:00
erik.corry@gmail.com
b32ff09a49 Regexp.rightContext was still not quite right. Fixed and 
added more tests.
Review URL: https://chromiumcodereview.appspot.com/10008104

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11312 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 11:03:22 +00:00
mstarzinger@chromium.org
20777bf0c5 Fix several ancient presubmit failures. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10038046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 09:58:29 +00:00
jkummerow@chromium.org
688e795314 Prepare push to trunk. Now working on version 3.10.3. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10071039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 09:44:33 +00:00
mstarzinger@chromium.org
2f732c2728 Add isolate accessor to AccessorInfo and Arguments. 
This passes the isolate through to API callback functions so that it is
available through AccessorInfo and Arguments. This allows bindings to
avoid unnecessary TLS lookups to retrieve the current isolate.

R=danno@chromium.org
TEST=cctest/test-api,cctest/test-accessors

Review URL: https://chromiumcodereview.appspot.com/10069050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 09:38:00 +00:00
svenpanne@chromium.org
436098b4a2 Prepare DefinePropertyAccessor for callback transitions. 
Although things are currently OK here, in the future it won't be enough to check
for the existence of a CALLBACKS result, we must additionally check that it
actually contains an accessor. In a nutshell: 'sed s/IsFound/IsProperty/' once
again...

Additionally, the control flow in DefinePropertyAccessor has been simplified by
using a helper function.

Review URL: https://chromiumcodereview.appspot.com/10071009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11305 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 09:35:18 +00:00
jkummerow@chromium.org
18a24a5882 MIPS: Increase external array allocation header size to 8 bytes. 
This fixes alignment issues on MIPS HW, found for example in mjsunit external-array.
The issue originates from r11144 (86563c3e21) which adds a 4-byte header to these arrays.
This causes problems on MIPS, where certain pointers need to be 8-byte aligned.

BUG=
TEST=mjsunit/external-array

Review URL: https://chromiumcodereview.appspot.com/9956049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11303 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 09:00:02 +00:00
loislo@chromium.org
d1f83dd95a This patch is introducing a way to grab heap stats. 
The idea is to monitor the heap regulary and track each object in the heap.
With this data we will be able do draw heap usage diagram.
Where X is time and Y is the number of objects.

BUG=none
TEST=HeapSnapshotObjectsStats

Review URL: https://chromiumcodereview.appspot.com/10049002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11302 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 08:52:25 +00:00
jkummerow@chromium.org
0070d4dfd7 Fix native ARM build 
BUG=v8:1744, v8:539

Review URL: https://chromiumcodereview.appspot.com/10008082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-13 07:59:09 +00:00
vegorov@chromium.org
ec4c772746 Return LOOKUP variable instead of CONTEXT for non-context allocated outer scope parameters. 
R=kmillikin@chromium.org
BUG=chromium:119609
TEST=test/mjsunit/regress/regress-119609.js

Review URL: https://chromiumcodereview.appspot.com/10010046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 19:32:29 +00:00
jkummerow@chromium.org
14e181709b Fix regular and ElementsKind transitions interfering with each other 
R=danno@chromium.org
BUG=122271
TEST=mjsunit/regress/regress-crbug-122271

Review URL: https://chromiumcodereview.appspot.com/10038010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11286 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 12:30:32 +00:00
erikcorry
32f16418ea Regexp: Fix rightContext in the lastMatchInfoOverride 
case.
Review URL: http://codereview.chromium.org/10068010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11285 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 12:13:18 +00:00
mstarzinger@chromium.org
40895f0250 Cleanup test-alloc unit test case. 
This makes the test-alloc test case more robust against changes to the
initial heap size. It correctly simulates a full space now instead of
trying to fill the space up by allocating filler objects.

R=svenpanne@chromium.org
TEST=cctest/test-alloc

Review URL: https://chromiumcodereview.appspot.com/10071003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11284 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 10:06:32 +00:00
erik.corry@gmail.com
e9e291c331 MIPS: NaNs in the snapshot should be quiet according 
to the MIPS FPU even when cross-building the snapshot.
This is based on code from Daniel Kalmar from
http://codereview.chromium.org/9910029/
Review URL: https://chromiumcodereview.appspot.com/10068006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11283 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 09:23:26 +00:00
fschneider@chromium.org
71702e1da3 Improve performance of keyed loads/stores which have a HeapNumber index. 
Some GWT compiled code results in array access that has a heap number (e.g. -0)
as an index. Until now this would result in a generic IC.

For example:

a[-0] === a[0] or

a[0.25 * 4] === a[1]

This change detects heap numbers that are representable as a smi
and converts them. As a result we can still use the fast keyed monomorphic
ICs. Optimized code already handles keyed access with a double-key efficiently.

As a result the frame rate on the reported benchmark improves by roughly 2x.

BUG=v8:1388,v8:1295
Review URL: https://chromiumcodereview.appspot.com/9837109

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11282 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 08:35:30 +00:00
erik.corry@gmail.com
de169b7d43 Port regexp microoptimizations to MIPS. Also fix some formatting. This includes http://codereview.chromium.org/9965107/ from Daniel Kalmar 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11281 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-12 07:45:25 +00:00
mstarzinger@chromium.org
6276295e28 Fix WeakMap processing for evacuation candidates (2). 
This fixes processing of WeakMaps so that keys on evacuation candidates
which are also reachable by other strong paths are correctly recorded in
the slots buffer.

Also backing stores that reside in the large-object-space now use the
correct anchor slot.

R=vegorov@chromium.org
BUG=v8:2060
TEST=cctest/test-weakmaps/Regress2060b

Review URL: https://chromiumcodereview.appspot.com/10034018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 15:32:31 +00:00
vegorov@chromium.org
8bdbfc02e7 Skip canonicalization check in LStoreKeyedFastDoubleElement when it is not needed: 
- if value is a result of integer32 to double conversion (can't be NaN);

- if value was loaded from fast double backing store (already canonicalized).

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10054009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11278 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 14:08:11 +00:00
vegorov@chromium.org
983d521fe9 Reland arguments access support for inlined functions (r11109,r11118). 
When pushing arguments use correct initial values instead of fetching them from the environment which can be modified.

R=fschneider@chromium.org
TEST=test/mjsunit/compiler/inline-arguments.js

Review URL: https://chromiumcodereview.appspot.com/10033028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11274 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 13:40:55 +00:00
mstarzinger@chromium.org
a9c664419e Fix presubmit error in r11270. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10053011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 11:45:14 +00:00
mstarzinger@chromium.org
82cde7c832 Remove write-barriers for stores to new-space objects. 
This change allows hydrogen instructions to keep track of instructions
that dominate certain side-effects (GVN flags) in the hydrogen graph. We
use the GVN pass to keep track of side-effects because accurate flags
are already in place.

It also adds a new side-effect (kChangesNewSpacePromotion) indicating
whether an instruction can cause a GC and have objects be promoted to
old-space. An object allocated in new-space is sure to stay on paths not
having said side-effect.

R=erik.corry@gmail.com
TEST=mjsunit/compiler/inline-construct

Review URL: https://chromiumcodereview.appspot.com/10031031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 10:56:16 +00:00
erik.corry@gmail.com
0cdf6b50e7 Fix compile errors on 64 bit platforms. 
Review URL: https://chromiumcodereview.appspot.com/10053009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 09:55:20 +00:00
erik.corry@gmail.com
a3629daa2c Fix external allocated memory accounting to use 64 bit values on 
64 bit architectures.
Review URL: https://chromiumcodereview.appspot.com/10020032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 09:23:57 +00:00
mstarzinger@chromium.org
00d9c14729 Fix WeakMap processing for evacuation candidates. 
This fixes processing of WeakMaps so that value entries on an evacuation
candidate are correctly recorded in the slots buffer. We didn't pass the
correct slot into the backing hashtable while visiting values.

Also the live bytes counter for large object space pages was not reset
correctly when incremental marking is aborted.

R=vegorov@chromium.org
BUG=v8:2060
TEST=cctest/test-weakmaps/Regress2060

Review URL: https://chromiumcodereview.appspot.com/10034010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 09:14:29 +00:00
loislo@chromium.org
48f1f7b745 I'd like to add addr field into EntryInfo struct. 
This will give us the ability to keep entries_ list sorted by id.
And based on that fact we will be able to use it for:
1) GetNodeById method and drop sorted version of entries list in HeapSnapshot;
2) building heap stats;
3) doing the fill stage instead of second iteration over heap.

BUG=none
TEST=none
R=yurys

Review URL: https://chromiumcodereview.appspot.com/10031032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11259 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 06:58:42 +00:00
vegorov@chromium.org
e831ec2c4e Bailout on possible direct eval calls. 
Environment structure for such calls is different from normal global calls.

R=fschneider@chromium.org
BUG=chromium:122681

Review URL: https://chromiumcodereview.appspot.com/10024060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11256 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 13:41:00 +00:00
fschneider@chromium.org
caf579d09e Insert three missing FP register stack pop instructions. 
We use fstp(0) already in other places. ffree does not pop the stack,
but only marks a FP register as empty.

BUG=v8:2065
Review URL: https://chromiumcodereview.appspot.com/9960066

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 13:39:28 +00:00
yurys@chromium.org
30d51abea1 Use SortedListBSearch instead of custom one in heap profiler 
Review URL: https://chromiumcodereview.appspot.com/10006032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 11:24:09 +00:00
kmillikin@chromium.org
abfe4f0562 Do not assume that names of function expressions are context-allocated. 
The heap profile generator assumes that for named function expressions, the
name is context allocated.  This is not necessary true.

BUG=v8:2051
TEST=WebKit layout test inspector/profiler/heap-snapshot-inspect-dom-wrapper.html

Review URL: https://chromiumcodereview.appspot.com/9960065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 11:07:16 +00:00
fschneider@chromium.org
752b05a003 Prepare push to trunk. Now working on version 3.10.2. 
Review URL: https://chromiumcodereview.appspot.com/10024057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11250 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 11:01:29 +00:00
erikcorry
f90e665e9a Ensure that a call to String.prototype.match with a 
global regexp after a call to String.prototype.replace
with a function argument sets the last match info
correctly.  Bug=2058
Review URL: http://codereview.chromium.org/10029009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11249 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-10 10:42:25 +00:00
alexeif@chromium.org
d18eaffdae Revert "External references should not affect dominance relation." 
This reverts commit 6e46549d13df2b211ea9b4fac9c09fe5013ec465.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10025014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-08 19:18:06 +00:00
alexeif@chromium.org
5ed3662407 External references should not affect dominance relation. 
Review URL: https://chromiumcodereview.appspot.com/10007009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-08 18:28:32 +00:00
yurys@chromium.org
502036ae06 Fix presubmit warnings after r11245 
TBR=mnaganov
Review URL: https://chromiumcodereview.appspot.com/10012040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-06 14:52:20 +00:00
yurys@chromium.org
2f0e0afb09 We can avoid putting all nodes into a hash map from HeapEntry to ID and sorting that map as the nodes are already stored in right order in HeapSnapshot::entries_ list. 
Review URL: https://chromiumcodereview.appspot.com/10012013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-06 14:16:45 +00:00
mstarzinger@chromium.org
78226352b7 Ensure HAllocateObject always allocates in new-space. 
This is needed so that we can start removing write-barriers in optimized
code if we can prove that the receiver object is always in new-space.

TEST=cctest/test-heap/OptimizedAllocationAlwaysInNewSpace

Review URL: https://chromiumcodereview.appspot.com/10008007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11243 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 15:36:31 +00:00
danno@chromium.org
581e9368d3 Fix glibc presence checks that are incorrectly triggered in some cases. 
This allows compilation of V8 using uClibc.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9702067
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 15:22:51 +00:00
danno@chromium.org
a897e6e229 MIPS: Remove static initializers in v8. 
Port r11010 (1daa81bc).

MIPS-specific changes:
-register codes and registers are defined using a macro to avoid redundancy
-renamed s8_fp to fp, removed the "fp" alias
-removed kSavedValueRegister (found by check-static-initializers.sh)

Original commit message:

Landing for pliard@chromium.org: Remove static initializers in v8.

This change includes two CLs by pliard@chromium.org:

1. http://codereview.chromium.org/9447052/ (Add CallOnce() and simple LazyInstance implementation):

Note that this implementation of LazyInstance does not handle global destructors (i.e. the lazy instances a

This CL was initially reviewed on codereview.appspot.com:
http://codereview.appspot.com/5687064/

2.  http://codereview.chromium.org/9455088/ (Remove static initializers in v8):
This CL depends on CL 9447052 (adding CallOnce and LazyInstance).
It is based on a patch sent by Digit.

With this patch applied, we have only one static initializer left (in atomicops_internals_x86_gcc.cc). This

This CL also modifies the presubmit script to check the number of static initializers.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9689069
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 15:18:22 +00:00
danno@chromium.org
17db8efe0c MIPS: Ensure proper alignment of LazyInstance objects. 
The template system converts the actual struct type to an array of chars.
Make sure the alignment is kept by the compiler.

This fixes a lot of serialization-related HW tests, for example cctest test-serialize/Serialize.

BUG=
TEST=cctest test-serialize

Review URL: https://chromiumcodereview.appspot.com/9702114
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 15:12:28 +00:00
danno@chromium.org
db86043160 Minimize uses of lazy initialization by adding explicit initialization functions. 
BUG=118686

Review URL: https://chromiumcodereview.appspot.com/9976003
Patch from Philippe Liard <pliard@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11239 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 14:10:39 +00:00
danno@chromium.org
ed5d288ac1 Adjust stack limit again to avoid overflow on 64 bit windows 
Also add additional stack check.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10006010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11238 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 14:01:39 +00:00
ulan@chromium.org
3861063018 Check for NaN in inlined versions of Math.min, Math.max. 
R=danno@chromium.org
BUG=V8:2056
TEST=mjsunit/regress/regress-2056.js

Review URL: https://chromiumcodereview.appspot.com/10006008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11237 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 13:24:52 +00:00
danno@chromium.org
3c6f5774d2 Fix stack overflows on Windows x64. 
R=mstarzinger@chromium.org
TEST=win 64 not red anymore

Review URL: https://chromiumcodereview.appspot.com/10008005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 12:32:35 +00:00
danno@chromium.org
dbf9c78990 Ensure default isolate is present in Context::New(). 
R=danno@chromium.org
BUG=chromium:118686
TEST=Run chrome with --single-process.

Review URL: https://chromiumcodereview.appspot.com/9949008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 10:54:11 +00:00
yurys@chromium.org
292d33f4fb Fix presubmit checks after r11223 
TBR=mnaganov
Review URL: https://chromiumcodereview.appspot.com/9961008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11226 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-04 14:33:03 +00:00
danno@chromium.org
2b6aa495c2 Ensure default isolate is present in Add/RemoveCallCompletedCallback. 
R=ulan@chromium.org,pliard@chromium.org
BUG=ui_tests don't crash in Chrome

Review URL: https://chromiumcodereview.appspot.com/9979003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11225 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-04 14:28:00 +00:00
mstarzinger@chromium.org
47aa3254c2 Fix rewriter to not treat throw as an expression. 
Now we can correctly optimize top level code that contains a throw (or
return) as it's last statement.

R=ulan@chromium.org
BUG=v8:2054
TEST=mjsunit/regress/regress-2054

Review URL: https://chromiumcodereview.appspot.com/9969146

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11224 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-04 13:41:05 +00:00
yurys@chromium.org
a8ed9d6b23 Switching to a custom itoa implementation reduces serialization time at least by the factor of 2. 
Review URL: https://chromiumcodereview.appspot.com/9950146

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-04 13:36:57 +00:00
ulan@chromium.org
232d990545 Reset function info counters after context disposal in incremental marking step. 
R=mstarzinger@chromium.org
BUG=117767,V8:1902
TEST=test/cctest/test-heap/ResetSharedFunctionInfoCountersDuringIncrementalMarking

Review URL: https://chromiumcodereview.appspot.com/9903019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 17:22:05 +00:00
mstarzinger@chromium.org
7b59b1d5ac Fix array boilerplate object transitioning. 
Array literal boilerplate objects can be transitioned while existing
un-transitioned clones are still being populated. This adds a check that
prevents us from performing the same transition twice.

R=danno@chromium.org
BUG=v8:2055
TEST=mjsunit/regress/regress-2055

Review URL: https://chromiumcodereview.appspot.com/9950095

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11221 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 16:54:28 +00:00
danno@chromium.org
d366275dd6 Fix stack overflow test failures with no snap. 
R=mstarzinger@chromium.org
BUG=chromium:119429

Review URL: https://chromiumcodereview.appspot.com/9963108

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11220 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 15:54:07 +00:00
danno@chromium.org
8dc9bc962f Don't crash on stack overflow entering the debugger. 
R=ager@chromium.org, sgjesse@chromium.org
BUG=chromium:119429
TEST= test/mjsunit/regress/regress-119429.js

Review URL: https://chromiumcodereview.appspot.com/9965101

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 13:45:56 +00:00
erik.corry@gmail.com
965fea65c2 Switch regexp strategy for regexps that are just plain 
strings with a small alphabet.  We already have code
that handles these regexps well, we were just not always
activating it.
Review URL: https://chromiumcodereview.appspot.com/9959096

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11218 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 12:24:55 +00:00
danno@chromium.org
d9437722da Properly support shrinking arrays in CopyDictionaryToObjectElements. 
R=mstarzinger@chromium.org
BUG=chromium:121407
TEST=test/mjsunit/regress/regress-121407.js

Review URL: https://chromiumcodereview.appspot.com/9968056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 08:13:59 +00:00
ulan@chromium.org
2b554f2448 Make progress in incremental marking if scavenge is delaying mark-sweep. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9965054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11213 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 07:32:19 +00:00
danno@chromium.org
f3348e9745 Adding missing SetCC before conditional branch. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/9950015
Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11212 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 15:53:38 +00:00
ulan@chromium.org
e352114fb8 Check code kind when resetting profiler ticks. 
BUG=121147
TEST=chromium gpu_tests/WebGLConformanceTests

Review URL: https://chromiumcodereview.appspot.com/9956060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11208 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 13:27:41 +00:00
erik.corry@gmail.com
6c8a6c2640 Cosmetic (ARM/MIPS): Use FieldMemOperand where appropriate. 
Review URL: https://chromiumcodereview.appspot.com/9963051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11207 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 13:26:05 +00:00
erik.corry@gmail.com
b5bf01ec79 MIPS: RegExp: Add support for table-based character class code generation. This is a commit of http://codereview.chromium.org/9968032/ for Daniel Kalmar 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 11:27:37 +00:00
ulan@chromium.org
18068abd0e Change ASSERT(kind() == FUNCTION) to ASSERT_EQ(FUNCTION, kind()). 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9958062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11205 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 10:57:17 +00:00
erikcorry
f14b93a508 Regexp: Improve the speed that we scan for an initial point where a non-anchored 
regexp can match by using a Boyer-Moore-like table.  This is done by identifying
non-greedy non-capturing loops in the nodes that eat any character one at a time.
For example in the middle of the regexp /foo[\s\S]*?bar/ we find such a loop.
There is also such a loop implicitly inserted at the start of any non-anchored
regexp.

When we have found such a loop we look ahead in the nodes to find the set of
characters that can come at given distances.  For example for the regexp
/.?foo/ we know that there are at least 3 characters ahead of us, and the sets
of characters that can occur are [any, [f, o], [o]].  We find a range in the
lookahead info where the set of characters is reasonably constrained.  In our
example this is from index 1 to 2 (0 is not constrained).  We can now look 3
characters ahead and if we don't find one of [f, o] (the union of [f, o] and
[o]) then we can skip forwards by the range size (in this case 2).

For Unicode input strings we do the same, but modulo 128.

We also look at the first string fed to the regexp and use that to get a hint
of the character frequencies in the inputs.  This affects the assessment of
whether the set of characters is 'reasonably constrained'.

We still have the old lookahead mechanism, which uses a wide load of multiple
characters followed by a mask and compare to determine whether a match is
possible at this point.
Review URL: http://codereview.chromium.org/9965010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 09:38:07 +00:00
erik.corry@gmail.com
f00631b710 Reduce initial boot-up memory use. This is an other attempt at what 
http://codereview.chromium.org/9179012 was trying to achieve.  This
time I am going for 80% of the benefit with around 5% of the complexity.

It works by reducing the size of the first page in each space.  Unlike the
previous change there is no attempt to grow pages, we just allocate more
full-sized pages when we need more memory.  For this reason the first pages are
not quite as small (compare
http://codereview.chromium.org/9179012/diff/1/src/snapshot.h with the changes
in spaces.cc in this cl):  We want to be able to do a little bit of allocation
before we have to add a full-sized page to the space.
Review URL: https://chromiumcodereview.appspot.com/9950048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 08:32:31 +00:00
mstarzinger@chromium.org
5798bc27aa Fix hidden properties to ignore [[Extensible]]. 
The [[Extensible]] property prevented the very first hidden property
from being added. If any hidden property was added to the object before
preventing extension, adding subsequent hidden properties would have
succeed however.

R=svenpanne@chromium.org
BUG=v8:2034
TEST=mjsunit/regress/regress-2034

Review URL: https://chromiumcodereview.appspot.com/9844025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11202 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-02 08:26:30 +00:00
danno@chromium.org
7c23b744fb Fix broken build on Windows due to r11198. 
This also fixes a style issue in lazy-instance.h.

Review URL: https://chromiumcodereview.appspot.com/9960006
Patch from Philippe Liard <pliard@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 20:48:32 +00:00
danno@chromium.org
63f033576c Fix performance regressions due to lazy initialization. 
This CL:
- Adds a new trait parameter to LazyInstance to let it initialize the instance
  without paying the cost of atomic operations (which are expensive on Mac).
  This only works for users who don't care about thread-safety and this is now
the default initialization trait used by LazyInstance in v8.

- Reverts the changes that were made in r11010 in isolate.{cc,h}. That lets
  Isolate's accessors be as cheap as they were before (but adds one static initializer).

- Adds OS::PostSetup() used to initialize the math functions which depend on CPU features.
That lets the math functions get rid of CallOnce().

BUG=118686

Review URL: https://chromiumcodereview.appspot.com/9873023
Patch from Philippe Liard <pliard@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11198 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 14:30:46 +00:00
vegorov@chromium.org
8360ec877e Ensure that arguments object is materialized when deoptimizing from inlined function. 
Lithium translation rebuilds hydrogen environments from scratch so we have to ensure that arguments object is correctly bound on function entry otherwise deoptimization will not materialize it.

This fix was implemented as part of r11109 and then reverted.

R=danno@chromium.org
BUG=v8:2045
TEST=test/mjsunit/regress/regress-2045.js

Review URL: https://chromiumcodereview.appspot.com/9963008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 13:22:39 +00:00
jkummerow@chromium.org
6faf4059b4 Prepare push to trunk. Now working on version 3.10.1. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9966002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 08:35:30 +00:00
erik.corry@gmail.com
e952ebb907 Fix missing static cast on Windows. 
Review URL: https://chromiumcodereview.appspot.com/9963006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11190 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 07:55:16 +00:00
erik.corry@gmail.com
356cf1ed0a RegExp: Add support for table-based character class 
code generation.  This is performance neutral for
all our tests, but a factor 6 faster for the Unicode
based regexp in the new test (and much more compact
code).
Review URL: https://chromiumcodereview.appspot.com/9854020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11189 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-30 07:43:48 +00:00
loislo@chromium.org
d857c994b6 Current schema of calculation max_snapshot_js_object_id is not always correct. 
As the result the test is flaky.

BUG=v8/2042
TEST=HeapEntryIdsAndGC
R=mnaganov

Review URL: https://chromiumcodereview.appspot.com/9918005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11187 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-29 14:18:11 +00:00
ulan@chromium.org
0acfd5af07 Fix offset computation for EmitProfilingCounterReset in x64. 
R=jkummerow@chromium.org
BUG=v8:2039

Review URL: https://chromiumcodereview.appspot.com/9903015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-29 14:04:41 +00:00
svenpanne@chromium.org
7c7c2801f5 Valgrind cleanliness, part 5: Delete extensions on exit. 
This fixes 4 leaks, returning 196 bytes of lost memory.

Review URL: https://chromiumcodereview.appspot.com/9864034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11184 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-29 09:45:46 +00:00
svenpanne@chromium.org
6c392ffa79 Valgrind cleanliness, part 2: Delete lithium operand caches on exit. 
This fixes 5 leaks, returning 1.6kB of lost memory.

Shocking news: I've actually introduced a 2nd-order macro for myself. I guess
I've been assimilated... ;-)

Review URL: https://chromiumcodereview.appspot.com/9860028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-28 13:12:00 +00:00
svenpanne@chromium.org
fa91d25e67 MIPS: First implementation of fast path for instantiation of array literals composed of doubles. 
Port r11114 (d8c975164).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9834044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11176 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-28 12:44:04 +00:00
ulan@chromium.org
82c0fec545 Reset the optimization_disabled flag in function info after context disposal. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9873022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-28 09:47:53 +00:00
mstarzinger@chromium.org
4389c29cce Fix store IC writability check in strict mode. 
The store ICs should only check writability attributes for actual
properties and not for map transitions.

R=jkummerow@chromium.org,svenpanne@chromium.org
BUG=chromium:120099
TEST=mjsunit/regress/regress-120099

Review URL: https://chromiumcodereview.appspot.com/9874015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-28 09:34:52 +00:00
jkummerow@chromium.org
1a8b6610c7 Add missing cast in d8 
Review URL: https://chromiumcodereview.appspot.com/9866035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 12:46:44 +00:00
ulan@chromium.org
2b3d6de2dd Resynchronize timers if the Windows system time was changed. 
R=jkummerow@chromium.org
BUG=119815
TEST=Change the system time one day back: (new Date()) will return incorrect time.

Review URL: https://chromiumcodereview.appspot.com/9865021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 12:34:32 +00:00
jkummerow@chromium.org
4b227a2a79 Profiler experiments: remove "stable on startup" rule 
Review URL: https://chromiumcodereview.appspot.com/9864030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 12:26:58 +00:00
jkummerow@chromium.org
b413f376c4 Move profiler_ticks to Code object, don't walk the stack when patching ICs 
Review URL: https://chromiumcodereview.appspot.com/9866030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 12:19:50 +00:00
loislo@chromium.org
b84b44d86c This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler. 
At the moment it is evaluating on the front-end side and this is cost us 2 * (load time + parse time + traverse via snapshot) because I need this value for two previous snapshots.

BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 11:54:47 +00:00
jkummerow@chromium.org
d71c60e086 Port count-based profiler to x64 
Review URL: https://chromiumcodereview.appspot.com/9845019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 11:21:27 +00:00
loislo@chromium.org
9b9e458a43 Revert "This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler." 
This reverts commit 634864d65ebe820a967f6162d8e226cf4a73e51a.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9861018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 11:12:31 +00:00
fschneider@chromium.org
70074b6901 Fix undeclared variable in d8 debugger. 
BUG=v8:2033
TEST='list' command works in d8 debugger.
Review URL: https://chromiumcodereview.appspot.com/9861017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 10:55:34 +00:00
svenpanne@chromium.org
30e6cac50e Valgrind cleanliness, part 3: Delete elements accessors on exit. 
This fixes 15 leaks, returning 132 bytes of lost memory.

As an additional bonus, elements accessors initialization has bee simplified a bit.

Review URL: https://chromiumcodereview.appspot.com/9836109

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11154 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 10:51:13 +00:00
mstarzinger@chromium.org
057371da13 Fix polymorphic load on named fields. 
This fixes polymorphic loads to correctly compare in-object offsets
instead of indices, because indices might coincide even though the
actual slot is different because of different instance sizes.

R=danno@chromium.org
BUG=v8:2030
TEST=mjsunit/regress/regress-2030,mjsunit/mirror-array

Review URL: https://chromiumcodereview.appspot.com/9864028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 10:42:38 +00:00
svenpanne@chromium.org
a071b4e04b Valgrind cleanliness, part 4: Delete CounterMap on exit. 
This fixes 2 leaks, returning 112 bytes of lost memory.

As an additional bonus, a useless check has been removed (no need to check for
NULL before a delete).

Review URL: https://chromiumcodereview.appspot.com/9864029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 09:50:48 +00:00
loislo@chromium.org
410f3a3375 This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler. 
At the moment it is evaluating on the front-end side and this is cost us 2 * (load time + parse time + traverse via snapshot) because I need this value for two previous snapshots.

BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11150 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 08:52:00 +00:00
ulan@chromium.org
7a1cbb2db8 Remove dependency on _mkgmtime to determine local timezone offset 
BUGS=v8:1386
TEST=

Review URL: https://chromiumcodereview.appspot.com/9600018
Patch from Jonathan Liu <net147@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 08:46:32 +00:00
erik.corry@gmail.com
bfb1e9e702 Fix edge case for case independent regexp character classes. 
http://code.google.com/p/v8/issues/detail?id=2032
Review URL: https://chromiumcodereview.appspot.com/9860029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 08:42:37 +00:00
svenpanne@chromium.org
a3eccef3fa Valgrind cleanliness, part 1: Delete current isolate on exit. 
Currently we leak 140kB from 80 allocation sites when we evaluate a simple
"print(1+2)" in d8 and exit. This might not be a real problem in Chrome because
most of the time the whole process containing v8 vanishes, but it can hide real
leaks in a sea of false positives. Therefore, this CL and a few subsequent ones
clean this up a bit.

This simple CL alone fixes 45 leaks, leaving only 35 with a net loss of 2192
bytes (on ia32).

Review URL: https://chromiumcodereview.appspot.com/9791016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-27 07:37:06 +00:00
loislo@chromium.org
b414adb1f3 Complete switch to SnapshotObjectId. 
BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 13:47:37 +00:00
jkummerow@chromium.org
3f7244e37b Properly AdjustAmountOfExternalAllocatedMemory() in d8 
This is related to v8 issue 2022 but doesn't fix it as this patch only affects d8, while there is a related bug in the WebKit V8 bindings too.

Review URL: https://chromiumcodereview.appspot.com/9835055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 13:24:20 +00:00
ulan@chromium.org
59b06fd638 Reset function info counters after context disposal. 
R=jkummerow@chromium.org
BUG=117767,V8:1902

Review URL: https://chromiumcodereview.appspot.com/9836091

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 13:08:08 +00:00
jkummerow@chromium.org
d9936b4546 MIPS: Port count-based profiler 
Port r11120 (548ba49bd).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9835083
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 11:29:44 +00:00
ulan@chromium.org
a47d1c0714 Fix the return type of the date set methods. 
Date set methods (setMinutes, setHours, etc.) should return the time value as a number instead of JSDate.

R=jkummerow@chromium.org
TEST=test/mjsunit/regress/regress-2027.js

Review URL: https://chromiumcodereview.appspot.com/9809010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 10:13:03 +00:00
mstarzinger@chromium.org
5bca664574 MIPS: Improve polymorphic loads on single slots. 
Port r11132 (91bdad6108).

Original commit message:

If all property lookups for a polymorphic load actually result in the
same field index under all maps, we can actually emit a monomorphic load
that is guarded by a map check that verifies that the actual map is in
the set of handled maps. This also allows GVN to get rid of redundant
such map checks.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9852007
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-26 09:41:53 +00:00
jkummerow@chromium.org
4e405b6945 Fix missing write barrier in CopyObjectToObjectElements. 
Passing the write barrier mode as a parameter does not make sense, as the elements kind specific copiers know best whether a write barrier is needed or not.

BUG=119926
TEST=mjsunit/regress/regress-crbug-119926
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9808111

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-25 15:16:06 +00:00
danno@chromium.org
8833c99552 Check double array bounds in HasElementImpl. 
R=jkummerow@chromium.org
BUG=chromium:119925
TEST=test/mjsunit/regress/regress-119925.js

Review URL: https://chromiumcodereview.appspot.com/9808110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-25 14:21:51 +00:00
mstarzinger@chromium.org
ab4e4cd917 Improve polymorphic loads on single slots. 
If all property lookups for a polymorphic load actually result in the
same field index under all maps, we can actually emit a monomorphic load
that is guarded by a map check that verifies that the actual map is in
the set of handled maps. This also allows GVN to get rid of redundant
such map checks.

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9616014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 16:37:54 +00:00
vegorov@chromium.org
3ccc885c78 Revert arguments access support for inlined functions (r11109,r11118). 
We are inserting HPushArgument instructions after HEnterInlined based on the environment at the point of the first arguments access. Which might create use before def if there are redundant phis in the environment. 
Review URL: https://chromiumcodereview.appspot.com/9837041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 15:39:34 +00:00
fschneider@chromium.org
a43c00cbae Fix use of uninitialized values in the runtime profiler. 
Review URL: https://chromiumcodereview.appspot.com/9835054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 15:26:04 +00:00
danno@chromium.org
706c07d176 Prepare push to trunk. Now working on version 3.10.0. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9845013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 15:08:45 +00:00
ulan@chromium.org
ef2cfb55ee Fix compile error introduced by r11122. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9838054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 13:52:15 +00:00
ulan@chromium.org
0b6a617779 Age inline caches after context disposal. 
Review URL: https://chromiumcodereview.appspot.com/9837005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 13:33:11 +00:00
jkummerow@chromium.org
148f1c1701 Fix deopt condition in ForIn on x64 
TEST=no more deopts in string-fasta

Review URL: https://chromiumcodereview.appspot.com/9836032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 12:20:03 +00:00
jkummerow@chromium.org
390f0e6d05 Port count-based profiler to ARM 
Review URL: https://chromiumcodereview.appspot.com/9837004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 12:16:40 +00:00
vegorov@chromium.org
9da07882c8 MIPS: Support arguments object access from inlined functions. 
Port r11109 (a7770bdd7c).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9808058
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 11:38:40 +00:00
rossberg@chromium.org
00346bd1da Fix use of proxies as f.prototype properties. 
R=mstarzinger@chromium.org
BUG=v8:2021
TEST=

Review URL: https://chromiumcodereview.appspot.com/9837008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 10:25:14 +00:00
mmassi@chromium.org
c39c2089a7 First implementation of fast path for instantiation of array literals composed of doubles. 
Review URL: https://chromiumcodereview.appspot.com/9814006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 10:14:51 +00:00
svenpanne@chromium.org
4cb600962f Make setting of accessors even more atomic. 
Now the whole getter/setter/attributes triple gets created/set together,
avoiding any hacks regarding previous values/attributes, making things a lot
simpler.

While doing this, an interesting problem surfaced, which has been there for a
long time: After adding/changing acessors in slow mode, we could potentially
fail going back to fast mode because of a failed memory allocation, signaling
the need for a GC. But we have already changed the object in slow mode, so we
are not idempotent and the retry would trigger a newly inserted assertion
(namely, that the code obeys access restrictions). This has been solved by
splitting the transformation to fast mode from the actual setting of the
accessors.

Review URL: https://chromiumcodereview.appspot.com/9716035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 09:51:56 +00:00
vegorov@chromium.org
b7dca5d5a7 Support arguments object access from inlined functions. 
R=fschneider@chromium.org
TEST=test/mjsunit/compiler/inline-arguments.js

Review URL: https://chromiumcodereview.appspot.com/9837002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-22 13:53:28 +00:00
jkummerow@chromium.org
f7073d467c Soften --type-info-threshold by eventually optimizing all functions 
(but waiting very long if they don't have enough type feedback).

Review URL: https://chromiumcodereview.appspot.com/9834005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11108 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-22 11:05:33 +00:00
erik.corry@gmail.com
bc1eb293cd Enable snapshots on MIPS. This is based on 
http://codereview.chromium.org/9372063 by Daniel Kalmar.
Review URL: https://chromiumcodereview.appspot.com/9722020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 14:29:14 +00:00
erik.corry@gmail.com
6cd62ed2a3 Unbork Windows 64 bit build and guard against overlong UTF-8 
serializations.
Review URL: https://chromiumcodereview.appspot.com/9817005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 14:04:24 +00:00
erik.corry@gmail.com
25f84a48ce Speed up WriteUtf8 in the case where the output buffer is large enough. 
Review URL: https://chromiumcodereview.appspot.com/9696032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 13:48:29 +00:00
ulan@chromium.org
2e9b509271 Prepare push to trunk. Now working on version 3.9.24. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9814007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 09:50:20 +00:00
fschneider@chromium.org
30a2f2c4ef When running with --always-opt, don't deoptimize named loads with uninitialized type feedback. 
This avoids tests taking too long because of repeated deoptimizations.
Review URL: https://chromiumcodereview.appspot.com/9812004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 09:23:09 +00:00
danno@chromium.org
b49dd13c90 MIPS: Branch delay slot and other optimizations. 
List of changes:
-added a minor optimization to the Simulator that quickly skips nops in the delay slot
-slightly re-worked CEntryStub to save a few instructions
 CEntryStub now expects the following values:
  -s0: number of arguments including receiver
  -s1: size of arguments excluding receiver
  -s2: pointer to builtin function
 Two new MacroAssembler functions were added to make usage more convenient:
  -PrepareCEntryArgs(int num_args) to set up s0 and s1
  -PrepareCEntryFunction(const ExternalReference&) to set up s2
-removed branch delay slot nops from the most frequently used code areas
-reorganized some code to execute fewer instructions
-utilized the delay slot of most Ret instructions
 This does not cover all Rets, only the most obvious cases.
 Also added a special version of DropAndRet that utilizes the delay slot.
-added some comments to code areas where explanation of the register/delay slot usage may be needed
-added an optimization to Jump so it doesn't always pre-load the target register

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9699071
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 08:41:16 +00:00
vegorov@chromium.org
790219ec55 Use correct arguments adaptation environment when inlining function containing arguments. 
R=mstarzinger@google.com
BUG=V8:2014
TEST=test/mjsunit/compile/inline-arguments.js

Review URL: https://chromiumcodereview.appspot.com/9750007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 18:15:31 +00:00
jkummerow@chromium.org
a615abd8d3 Fix overly aggressive ASSERT(!optimization_disabled()) 
Review URL: https://chromiumcodereview.appspot.com/9748018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 15:27:33 +00:00
loislo@chromium.org
64c96ad9c0 There is a trick for speed up array shift operation. 
This trick is confusing a bit the heap snapshoting code.
Such a shiffted array will be interpreted as a new array in the second snapshot.

BUG=none
TEST=HeapEntryIdsAndArrayShift

Review URL: https://chromiumcodereview.appspot.com/9748007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 14:35:05 +00:00
ulan@chromium.org
c7c3f8d5be Adjust heuristics for idle notifications after context disposal. 
Review URL: https://chromiumcodereview.appspot.com/9701093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 13:29:49 +00:00
jkummerow@chromium.org
13498a1cd3 Prepare push to trunk. Now working on version 3.9.23. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9748013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11092 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 12:57:17 +00:00
fschneider@chromium.org
b0bb4f078a Fix assertion failure due to too many deoptimization ids. 
The failing mozilla test was caused by more deoptimizations
introduced by --always-opt and r11087.

We abort code generation in release mode, so we should do
the same in debug mode.
Review URL: https://chromiumcodereview.appspot.com/9752004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 08:49:23 +00:00
vegorov@chromium.org
de9120500a Add Zhongping Wang <kewpie.w.zp@gmail.com> to AUTHORS 
Fix compilation failure on Win x64 builder introduced by r11084

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9748004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 08:12:31 +00:00
jkummerow@chromium.org
5d6763aaba Enable experimental profiler by default 
Review URL: https://chromiumcodereview.appspot.com/9726004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 17:29:25 +00:00
fschneider@chromium.org
e081a3bfba Insert explicit deoptimization for named loads that have "uninitialized" type feedback. 
We already do this for binary-ops, unary-ops and comparisons. Typefeedback for named loads can now also
be in "uninitialized" state which means that the corresponding load IC was never executed.
Review URL: https://chromiumcodereview.appspot.com/9722041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 15:54:37 +00:00
vegorov@chromium.org
254d810a32 When transitioning LoadIC to megamorphic case place monomorphic stubs into stub cache. 
Otherwise if function is optimized immediately after transition type oracle will be unable to gather enough maps from stub cache and graph builder will emit HLoadNamedGeneric instead of HLoadNamedPolymorphic.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9705102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11085 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 12:09:22 +00:00
vegorov@chromium.org
b7b2fd4cec Implement a hash based look-up to speed up containing address check in large 
object space. Before, it was a link-list based look-up, and make this function
a little bit 'hot' from profile point.

BUG=v8:853
TEST=

Review URL: https://chromiumcodereview.appspot.com/9634005
Patch from Zhongping Wang <kewpie.w.zp@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11084 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 12:08:20 +00:00
rossberg@chromium.org
cfb0ab5a26 Prepare push to trunk. Now working on version 3.9.22. 
R=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9724031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 10:22:38 +00:00
jkummerow@chromium.org
0bbe8c4fae Fix FLAG_always_opt and tools/push-to-trunk.sh 
TEST=tests with --always-opt don't ASSERT; push to trunk workflow works.

Review URL: https://chromiumcodereview.appspot.com/9718035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 10:16:38 +00:00
erik.corry@gmail.com
bcd0fd00e3 Add API call that identifies strings that are guaranteed 
only to contain ASCII characters.
Review URL: https://chromiumcodereview.appspot.com/9724022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11079 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 09:51:36 +00:00
rossberg@chromium.org
8a70de81e4 Prepare push to trunk. Now working on version 3.9.21. 
R=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9716030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11078 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 09:47:46 +00:00
jkummerow@chromium.org
30ba119fa9 Mark Code objects as not optimizable if their FunctionLiteral contains unoptimizable AST nodes. 
This ensures that we never try to optimize such functions.

Review URL: https://chromiumcodereview.appspot.com/9700062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11077 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 08:44:44 +00:00
fschneider@chromium.org
1c99c90be7 Re-enable constructor inlining and inline === comparison with boolean constants. 
This change reverts r10974 which disabled those two optimizations.
They were not responsible for the problem in earley-boyer.

BUG=v8:2009
Review URL: https://chromiumcodereview.appspot.com/9699117

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11076 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 07:51:37 +00:00
fschneider@chromium.org
1a29d5cf33 Revert dynamic frame alignment (r9415) 
Marking aligned frames with a marker can produce false positives since
an optimized frame spill slot may be mistakenly seen as a marker value.

It also breaks the debugger reproducably: Tested when enabling alignment
for all functions and running the debugger unit tests.

BUG=v8:2009
TEST=no crashes in EarleyBoyer
Review URL: https://chromiumcodereview.appspot.com/9703110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 07:45:06 +00:00
danno@chromium.org
2dc04fda4a MIPS: Properly initialize element-transitioning array literals on ARM. 
Port r10624 (172d021).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9689010
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 16:18:20 +00:00
erik.corry@gmail.com
e3774cf23f Record the addresses of pages that are unmapped to aid 
in post mortem crash dump analysis.
Review URL: https://chromiumcodereview.appspot.com/9700061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 14:13:22 +00:00
danno@chromium.org
9104cfd959 Use CopyElements for SetFastDoubleElementsCapacityAndLength 
Review URL: https://chromiumcodereview.appspot.com/9663002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 13:59:59 +00:00
vegorov@chromium.org
aaac499253 Switch Heap::RecordStats to use PagedSpace::SizeOfObjects instead of PagedSpace::Size. 
This would allow us to get more precise estimate of heap fragmentation on OOM.

R=erik.corry@gmail.com

Review URL: https://chromiumcodereview.appspot.com/9700096

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 13:52:43 +00:00
danno@chromium.org
6e1f8780f9 Add flag to always call DebugBreak on abort 
R=vegorov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9706097

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11068 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 13:43:04 +00:00
yangguo@chromium.org
184b7a8915 Experimental profiler: split RegExp.test() for better optimization. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9701064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 17:21:42 +00:00
svenpanne@chromium.org
5389cdf6fc Fix clang template weirdness. 
TBR=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9710001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 15:01:59 +00:00
mstarzinger@chromium.org
9484f16244 Fix minor inconsistency with inline function list. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9699075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 14:38:45 +00:00
pfeldman@chromium.org
26aaa3b005 Debugger: naive implementation of "step into Function.prototype.bind". 
Review URL: https://chromiumcodereview.appspot.com/9705018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11058 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 14:17:22 +00:00
mstarzinger@chromium.org
79a98de9f7 Fix declarations escaping global strict eval. 
According to ES5 10.4.2(3), eval calls of strict code always require
their own lexical and variable environment. For now we just add a new
scope when we parse the strict mode directive. The clean solution would
be to always have this sope present (even for global eval calls) and
adapt variable binding to cope with that.

R=rossberg@chromium.org
BUG=v8:1624
TEST=mjsunit/regress/regress-1624,test262/S10.4.2.1_A1

Review URL: https://chromiumcodereview.appspot.com/9703021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 13:02:21 +00:00
vegorov@chromium.org
c9b0d104d1 MIPS: Inline functions that use arguments object in f.apply(o, arguments) pattern. 
Port r11008 (f7a04e6f9).

Original commit message:

Support arguments materialization after deoptimization in all frames (not only in topmost one).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9677053
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11056 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 12:29:20 +00:00
vegorov@chromium.org
211a867943 Improve representation inference for HUnknownOSRValue. 
Use corresponding phi from the loop entry as a hint to infer proper representation for HUnkownOSRValue and dependent phis.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9704012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 12:21:29 +00:00
pfeldman@chromium.org
100bc51eae Debugger: add ability to set script source from within OnBeforeCompile. 
Review URL: https://chromiumcodereview.appspot.com/9677043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 11:51:26 +00:00
danno@chromium.org
beb012be45 Don't use an explicit s0 in ClampDoubleToUint8. 
R=fschneider@chromium.org
BUG=v8:2004
TEST=test/mjsunit/pixel-array-rounding.js

Review URL: https://chromiumcodereview.appspot.com/9702027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11053 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 09:52:48 +00:00
svenpanne@chromium.org
e2cb7894fb Fixed breakage caused by r11051 on non-ia32 platforms. 
TBR=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9703056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 09:28:49 +00:00
svenpanne@chromium.org
c644c4e811 Ensure that generated code for object literals will call Runtime_DefineOrRedefineAccessorProperty only once per accessor property. 
To do this, we collect all accessor properties in a first pass and emit code for
defining those properties afterwards in a second pass.

As a finger exercise, the table used for collecting accessors has a (subset of
an) STL-like iterator interface, including STL-like names and operators.
Although C++ is quite verbose here (as usual, but partly this is caused by our
current slightly clumsy classes/templates), things work out quite nicely and it
cleans up some confusion, e.g. a table entry is not an iterator etc.
Everything compiles into very efficient code, e.g. the loop condition 'it !=
accessor_table.end()' compiles into a single 'testl' instruction on ia32.
+1 for using standard APIs!

Review URL: https://chromiumcodereview.appspot.com/9691040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11051 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-15 07:13:46 +00:00
mstarzinger@chromium.org
2c7f0edd48 Fix wrapping of receiver for non-strict callbacks. 
R=rossberg@chromium.org
BUG=v8:1973
TEST=mjsunit/regress/regress-1973

Review URL: https://chromiumcodereview.appspot.com/9705020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11050 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 17:42:19 +00:00
rossberg@chromium.org
314b3559d4 Fix --use-strict flag in combination with --harmony[-scoping]. 
R=ulan@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9706025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11049 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 17:25:01 +00:00
yangguo@chromium.org
1c4edb8c44 Remove write barriers for raw smi accessors. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9702026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11048 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 16:16:46 +00:00
mstarzinger@chromium.org
fe1440f339 Remove unused local variable after r11023. 
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9699023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11044 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 14:08:36 +00:00
rossberg@chromium.org
46001aa54c Function declarations shall not overwrite read-only global properties. 
R=mstarzinger@chromium.org
BUG=115452
TEST=mjsunit/regress/regress-115452

Review URL: https://chromiumcodereview.appspot.com/9696035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11043 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 13:51:00 +00:00
ulan@chromium.org
6308a09006 Increase executable size limit. 
R=vegorov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9695002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11042 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 13:21:44 +00:00
vegorov@chromium.org
966ebf8f55 Don't take UnkownOSRValues into account when infering Phi's representation. 
For DIV with uninitialized result assume double result representation.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9664070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 12:59:49 +00:00
mstarzinger@chromium.org
4663039353 Prepare push to trunk. Now working on version 3.9.20. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9703018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 11:08:06 +00:00
jkummerow@chromium.org
73df5e69d5 Avoid implicit bool->int cast in CollectAllGarbage call 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9699016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 10:19:37 +00:00
fschneider@chromium.org
35786621f2 Change --hydrogen-filter to allow specifying a negative filter for optimized functions. 
When prepending a '-' to the function name, the function will not be optimized.

--hydrogen-filter=foo works as before.

--hydrogen-filter=-foo means don't optimize foo.
Review URL: https://chromiumcodereview.appspot.com/9691042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 09:45:17 +00:00
yangguo@chromium.org
754dc79066 MIPS: Added support for Loongson architectures. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9692048
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 16:18:30 +00:00
yangguo@chromium.org
20c040dcd7 Split up String.split to deal with normal separator and regexp separator separately. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9694041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 15:44:19 +00:00
alexeif@chromium.org
cd81976065 Store entry id as 32-bit int. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9695046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 15:42:26 +00:00
vegorov@chromium.org
262c8bddd5 Always create HArgumentsObject on function entry. 
We do not know if we are going to need it and creating it lazyly might cause us to insert it at the block that does not dominate all uses.

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

Review URL: https://chromiumcodereview.appspot.com/9692046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11024 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 14:45:03 +00:00
mstarzinger@chromium.org
0ab3fb8b00 Implement non-generic stores for object literals. 
This uses the type feedback already present for computed value stores
into object literals to generate optimized stores in Crankshaft, thus
avoiding unnecessary generic stores with side effects.

R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9692036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11023 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 12:11:46 +00:00
kmillikin@chromium.org
7d6fd56fd5 Ensure there is a smi check of the receiver for global load and call ICs. 
There was a comment that, for such ICs specialized to the global object,
they were always contextual loads.  This is very brittle.  It is a
micro-optimization that relies too much on the way that things happen to
work today.

Instead, never omit the smi check because it's safer.

R=vegorov@chromium.org
BUG=117794
TEST=regress-117794.js

Review URL: https://chromiumcodereview.appspot.com/9691038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11022 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 11:39:30 +00:00
yangguo@chromium.org
235e9e20a7 Experimental Profiler: tweak type info threshold. 
Also included: simplify String.slice.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9694033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 11:38:37 +00:00
ulan@chromium.org
4eaa7c16ff Add type feedback info type to instance type list macro. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9694032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 11:01:07 +00:00
yangguo@chromium.org
05c1d51766 Prepare push to trunk. Now working on version 3.9.19. 
R=svenpanne@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9696030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11016 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 08:07:35 +00:00
yangguo@chromium.org
9a110acaa8 Remove static Mutex from math function intializers. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9662064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11015 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 17:15:13 +00:00
fschneider@chromium.org
56e9118f56 Use lazy instance initializer to remove static initializers in two places. 
Review URL: https://chromiumcodereview.appspot.com/9664067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11014 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 16:10:53 +00:00
yangguo@chromium.org
7659beafb1 Ensure consistency of Math.sqrt on Intel platforms. 
BUG=
TEST=regress-sqrt.js

Review URL: https://chromiumcodereview.appspot.com/9690010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 14:56:04 +00:00
fschneider@chromium.org
12c09fdfe4 Fix broken build on Win32 due to r11010. 
Review URL: https://chromiumcodereview.appspot.com/9666055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11011 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 14:41:59 +00:00
fschneider@chromium.org
1f7d42efc9 Landing for pliard@chromium.org: Remove static initializers in v8. 
This change includes two CLs by pliard@chromium.org:

1. http://codereview.chromium.org/9447052/ (Add CallOnce() and simple LazyInstance implementation):

Note that this implementation of LazyInstance does not handle global destructors (i.e. the lazy instances are never deleted).

This CL was initially reviewed on codereview.appspot.com:
http://codereview.appspot.com/5687064/



2.  http://codereview.chromium.org/9455088/ (Remove static initializers in v8):
This CL depends on CL 9447052 (adding CallOnce and LazyInstance).
It is based on a patch sent by Digit.

With this patch applied, we have only one static initializer left (in atomicops_internals_x86_gcc.cc). This static initializer populates a structure used by x86 atomic operations. It seems that we can hardly remove it. If possible, it will be removed in a next CL. 

This CL also modifies the presubmit script to check the number of static initializers.


BUG=v8:1859
Review URL: https://chromiumcodereview.appspot.com/9666052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 13:56:56 +00:00
erik.corry@gmail.com
05c3295272 Unbreak Windows build after UTF-16 change (sys/types.h does not define 
int32_t on Windows).
Review URL: https://chromiumcodereview.appspot.com/9669051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11009 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 13:18:30 +00:00
vegorov@chromium.org
da03f56b1f Inline functions that use arguments object in f.apply(o, arguments) pattern. 
Support arguments materialization after deoptimization in all frames (not only in topmost one).

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9643001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11008 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 12:49:41 +00:00
erik.corry@gmail.com
03cfc4363b Fix input and output to handle UTF16 surrogate pairs. 
Review URL: https://chromiumcodereview.appspot.com/9600009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 12:35:28 +00:00
mstarzinger@chromium.org
cd91894d2f Fix missing initialization of mark-compact flags. 
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9662056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 12:17:46 +00:00
yangguo@chromium.org
258708dda9 Fix heuristic triggering incremental marking. 
This changes the heuristic that starts incremental marking to be based
on a more accurate heap size estimation. Pages being swept lazily can be
accounted using the live bytes counter.

R=mstarzinger@chromium.org
BUG=v8:1682

Review URL: https://chromiumcodereview.appspot.com/9674001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11004 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 09:39:12 +00:00
ulan@chromium.org
85611e37c0 MIPS: Port Date-related changes. 
Port r10981 (5ea074), r10982 (5f0d413) and r10983 (663a897d5).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9668045
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11003 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 08:46:25 +00:00
yangguo@chromium.org
165e42c291 MIPS: Inline inequality compares of strings into CompareICStub 
Port r10988 (c6c9ebb5).

Original commit message:

Inline inequality compares of strings into CompareICStub instead of jumping into the CompareStub that handles the generic case.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9669026
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11002 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 08:24:10 +00:00
svenpanne@chromium.org
9de66b9f3a Prepare push to trunk. Now working on version 3.9.18. 
R=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9690004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 08:15:43 +00:00
loislo@chromium.org
0b360fb519 V8 crashes when profile generator allocates a buffer for HeapEntry'es bigger than 2Gb. 
BUG=none
TEST=profile-generator tests

Review URL: https://chromiumcodereview.appspot.com/9632020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10998 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-11 15:04:50 +00:00
loislo@chromium.org
dd711075fa Style fix after reapplying the patch r10996. 
BUG=none
TEST=none
TBR=mikhail.naganov@gmail.com

Review URL: https://chromiumcodereview.appspot.com/9664042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10997 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-11 07:35:21 +00:00
loislo@chromium.org
f4f4bd0a46 We have a problem with really big apps. The snapshot for such pages doesn't fit into JS heap on DevTools front-end side. I'd like to move the snapshot's nodes data into Int32Array. 
This will reduce the pressure. At this moment it is not possible because the snapshot uses uint64_t for ids.

BUG=none
TEST=profiler-generator tests

Review URL: https://chromiumcodereview.appspot.com/9617006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-11 07:02:19 +00:00
loislo@chromium.org
ed0ceee589 Revert "We have a problem with really big apps. The snapshot for such pages doesn't fit into JS heap on DevTools front-end side. I'd like to move the snapshot's nodes data into Int32Array." 
This reverts commit 8c08ecc2782d5a8c60eb0692ec8f13d6da3cdc58.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/9666038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10995 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-11 06:12:10 +00:00
loislo@chromium.org
7b4c4a527f We have a problem with really big apps. The snapshot for such pages doesn't fit into JS heap on DevTools front-end side. I'd like to move the snapshot's nodes data into Int32Array. 
This will reduce the pressure. At this moment it is not possible because the snapshot uses uint64_t for ids.

BUG=none
TEST=profiler-generator tests

Review URL: https://chromiumcodereview.appspot.com/9617006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10994 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-11 06:00:55 +00:00
yangguo@chromium.org
1d679f9c37 Fixed VFP detection through compiler defines. 
BUG=http://code.google.com/p/v8/issues/detail?id=1996
TEST=none

Review URL: https://chromiumcodereview.appspot.com/9669003
Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10993 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 22:11:16 +00:00
jkummerow@chromium.org
efee39a075 Profiler experiments: update flag default values. 
This doesn't enable the experimental profiler by default, it just tunes its behavior when it is enabled.

Review URL: https://chromiumcodereview.appspot.com/9668009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10992 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 17:55:54 +00:00
jkummerow@chromium.org
1d4221a4d3 Profiler experiments: merge self-optimization code into interrupt-at-exit 
Review URL: https://chromiumcodereview.appspot.com/9633012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10991 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 16:23:06 +00:00
danno@chromium.org
15ffc2e249 Fix presubmit problem with elements template macro 
TBR=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9665002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10990 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 14:53:02 +00:00
danno@chromium.org
17b7d33d53 Implement efficient element copying in ElementsAccessors. 
Review URL: https://chromiumcodereview.appspot.com/9638014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10989 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 13:48:29 +00:00
yangguo@chromium.org
e711ff38ef Inline inequality compares of strings into CompareICStub instead of jumping into the CompareStub that handles the generic case. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9649027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10988 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 13:12:59 +00:00
ulan@chromium.org
cb2f2a2391 Fix compile errors on Windows introduced by r10983. 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9652030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10987 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 13:01:32 +00:00
vegorov@chromium.org
95884b7c6b MIPS: Introduce basic type feedback for for-in statements to avoid deopts. 
Port r10901 (a54f1a3).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9586004
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 12:30:04 +00:00