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8612 Commits

Author SHA1 Message Date
mstarzinger@chromium.org
34d98a804d Fix deletion of hidden property with inline-stored hash. 
R=yangguo@chromium.org
BUG=chromium:157124
TEST=cctest/test-api/Regress157124

Review URL: https://codereview.chromium.org/11233033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12785 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-22 12:50:51 +00:00
danno@chromium.org
f07b229104 MIPS: Use movw/movt instead of constant pool on ARMv7. 
Port r12755 (5d62d66e)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/11232036
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-22 11:15:09 +00:00
yangguo@chromium.org
e41250a390 Revert r12760 (JSON.stringify). 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11225026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-22 11:11:22 +00:00
yangguo@chromium.org
3c5e899378 Fix two-char hash to use correct fallback for zero hashes. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11228004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-22 10:38:40 +00:00
ulan@chromium.org
18ff15ca8c Speed up function deoptimization by avoiding quadratic pass over optimized function list. 
R=danno@chromium.org
BUG=155270

Review URL: https://chromiumcodereview.appspot.com/11189091

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-22 09:48:56 +00:00
verwaest@chromium.org
d33cda9338 Micro-optimizing the json parser 
Review URL: https://chromiumcodereview.appspot.com/11237002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12779 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 15:37:28 +00:00
verwaest@chromium.org
4f40326fae Fast path for searching through simple transitions 
Review URL: https://chromiumcodereview.appspot.com/11189089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 15:03:27 +00:00
yangguo@chromium.org
06f7d1c92c Improve ClampDoubleToUint8 on ia32/x64. 
It's measured faster when:
a) clamp never happens;
b) clamp random happens ([-128,384], pseudo random).

Review URL: https://chromiumcodereview.appspot.com/11190049
Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 13:20:22 +00:00
verwaest@chromium.org
c9e86f4b69 Remove scratch register requirement from LoadInstanceDescriptors on arm and mips. 
Review URL: https://chromiumcodereview.appspot.com/11193022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12776 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 12:39:59 +00:00
yangguo@chromium.org
8148f972e8 Stress GC less by allocating exponentially growing string chunks in JSON.stringify. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11232002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 12:39:43 +00:00
yangguo@chromium.org
f910052543 Always invoke the default Array.sort functions from builtin functions, part 2. 
R=vegorov@chromium.org
BUG=v8:2372

Review URL: https://chromiumcodereview.appspot.com/11175007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12774 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 12:30:18 +00:00
danno@chromium.org
063609280e Add a faster API for creating v8::Integer objects 
In WebKit, we have a small integer cache because calling v8::Integer::New is
slow. This patch adds a faster API for creating integers that requires the
caller to supply the v8::Isolate, saving us the work of looking up the isolate
in thread-local storage.

BUG=

Review URL: https://codereview.chromium.org/11212004
Patch from Adam Barth <abarth@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12773 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 11:15:04 +00:00
verwaest@chromium.org
a0c9856bce Get the target field index when transitioning. 
Review URL: https://chromiumcodereview.appspot.com/11194080

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12772 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 10:48:18 +00:00
danno@chromium.org
ace5bf3f94 Fix ARM dissambler test problems with movw/movt. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11198061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12771 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 10:44:56 +00:00
yangguo@chromium.org
5fa8f2f485 Pass pending exception to the message listener. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11014017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12768 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 08:45:24 +00:00
verwaest@chromium.org
fa53250dd2 Fixed json regression 
BUG=v8:2374

Review URL: https://chromiumcodereview.appspot.com/11186059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12766 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 08:23:45 +00:00
verwaest@chromium.org
7bc94a92c5 Fixed error introduced in r12761. 
BUG=2373

Review URL: https://chromiumcodereview.appspot.com/11198068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 18:43:19 +00:00
verwaest@chromium.org
7ce3a4021d Static cast char* diff to int. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11200004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 15:57:45 +00:00
verwaest@chromium.org
d04a1fff1f Keep track of the first non-ascii word/char to avoid redoing the work. 
Review URL: https://chromiumcodereview.appspot.com/11194053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12762 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 15:08:11 +00:00
verwaest@chromium.org
852de2e1ab Adding a fast path for parsing index keys. 
Reduces overhead on http://code.google.com/p/chromium/issues/detail?id=156379 from 360ms down to 255ms.

Review URL: https://chromiumcodereview.appspot.com/11189039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 14:44:40 +00:00
yangguo@chromium.org
7a653c1675 Reimplement a simpler version of JSON.stringify. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11186025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 14:42:26 +00:00
danno@chromium.org
4431e0c54e Put more constants in movw/movt instructions 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11185052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 14:37:04 +00:00
yangguo@chromium.org
a7f3edb818 Make sure the fast case of ScanJsonString bails out to the slow case correctly. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11185050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 13:15:05 +00:00
danno@chromium.org
43e248d2e5 Use movw/movt instead of constant pool on ARMv7. 
Some ARM architectures load 32-bit immediate constants more efficiently using movw/movt pairs rather than constant pool loads. This patch allows the assembler to generate one or the other load form at runtime depending on what is faster.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11037023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 12:21:42 +00:00
danno@chromium.org
9d43ff71b8 Avoid unnecessary code target changes during code compaction. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11198032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 12:01:36 +00:00
verwaest@chromium.org
a38af4256c Fix typo in fast path for scanning json strings. 
Review URL: https://chromiumcodereview.appspot.com/11191055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 11:47:06 +00:00
fschneider@chromium.org
971e834a8d Always invoke the default Array.sort functions from builtin functions. 
TEST=mjsunit/regress/regress-builtin-array-op.js
BUG=v8:2372
Review URL: https://chromiumcodereview.appspot.com/10559005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12752 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 11:18:08 +00:00
svenpanne@chromium.org
9dc2c5b83d Add an API for enumerating persistent handles 
This API lets the embedder enumerate handles that have class ids. WebKit will
use this feature during garbage collection to compute object groups for DOM
nodes. Previously, we kept a list of DOM nodes on the WebKit side, but that
list is redundant with the global handles list in V8.

Review URL: https://codereview.chromium.org/11190011
Patch from Adam Barth <abarth@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12750 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 06:52:37 +00:00
danno@chromium.org
966b08440c MIPS: Fix compilation under clang. 
Clang is a little more picky than gcc on unused variable
warnings, which become errors with -Werror. Clean up
these cases for mips.

BUG=
TEST=

Review URL: https://codereview.chromium.org/11175005
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12748 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 14:20:43 +00:00
verwaest@chromium.org
b61933ba10 Eagerly follow transitions to existing maps while json parsing. 
Review URL: https://chromiumcodereview.appspot.com/11184006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12747 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 14:09:42 +00:00
verwaest@chromium.org
72424b3987 Move DescriptorArray into the map. 
Review URL: https://chromiumcodereview.appspot.com/11188031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 13:04:49 +00:00
jkummerow@chromium.org
62223bd2c0 Revert recent CPU profiler changes because they broke --prof. 
This reverts r12649 and r12650.

BUG=v8:2364

Review URL: https://codereview.chromium.org/11193020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 12:24:31 +00:00
svenpanne@chromium.org
bcb383e055 Improved printing of HLoadElements instruction. 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11177004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 11:41:07 +00:00
danno@chromium.org
4a2a4b8647 MIPS: Fix ARM bug introduced in r12604 that caused crashes on ARM on crypto-md5 from SunSpider. 
Port r12623 (22002351)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10979066
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 08:45:17 +00:00
danno@chromium.org
1fe673a60d MIPS: Fix issue 2346 (order of operations in keyed store on arrays) and turn get-own-property-descriptor.js test into a regression test. 
Port r12604 (ae837167)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10987086
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12741 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 08:29:58 +00:00
mstarzinger@chromium.org
479b4d61a6 MIPS: Make the speed of incremental marking depend also on the rate at which we are hitting expensive write barrier operations, not just on the rate of allocation. 
Port r12618 (c621b025)

BUG=
TEST=

Review URL: https://codereview.chromium.org/10977070
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12740 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 08:24:13 +00:00
ulan@chromium.org
9f2e52ac12 Fix MIPS build broken by r12735 'Allow unaligned accesses for ARMv7'. 
R=mstarzinger@chromium.org,palfia@homejinni.com

Review URL: https://chromiumcodereview.appspot.com/11167004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12739 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 08:23:15 +00:00
mstarzinger@chromium.org
e2da94b804 MIPS: Fix compilation failure on ARM in r12685. 
Port r12686 (bdda5c81)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11143029
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12738 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-16 08:16:36 +00:00
ulan@chromium.org
a86e897924 Simulate and disasm NOP on ARM 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11116011
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12737 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 15:42:09 +00:00
mstarzinger@chromium.org
02490829dd Fix bug in deletion of indexed properties 
The delete operator always return true in case of indexed property. It
should return false if an indexed property can't be deleted (eg.
DontDelete attribute is set or a string object is the holder).

Contributed by Peter Varga <pvarga@inf.u-szeged.hu>

BUG=none
TEST=mjsunit/delete-non-configurable

Review URL: https://codereview.chromium.org/11094021
Patch from Peter Varga <pvarga@inf.u-szeged.hu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12736 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 15:23:22 +00:00
ulan@chromium.org
86eedc26b5 Allow unaligned accesses for ARMv7. 
R=mstarzinger@chromium.org,jfb@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11087047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 15:19:36 +00:00
mstarzinger@chromium.org
d9e3d35c07 Switch code flushing to use different JSFunction field. 
This is another preparation for incremental code flushing. Instead of
linking candidates using the code entry field, we use the next pointer
that is also used to link optimized functions together. Since we only
support flushing of unoptimized code, this field can be shared.

R=ulan@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11141023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 14:43:57 +00:00
svenpanne@chromium.org
57116621eb Fixed VERIFY_HEAP without DEBUG. 
Review URL: https://codereview.chromium.org/11155007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12731 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 12:36:58 +00:00
svenpanne@chromium.org
1fef757b4e Prepare push to trunk. Now working on version 3.14.5. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11137016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 11:49:59 +00:00
yurys@chromium.org
eee93ec99b Allow evals for debugger even if they are prohibited in the debugee context. 
BUG=154733
Review URL: https://codereview.chromium.org/11111015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12726 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 10:15:25 +00:00
mstarzinger@chromium.org
3d0d211764 Ensure code flushing is disabled in incremental marking. 
This fixes some test failures since r12714 which shared the code for
code flushing between full and incremental marking and is only a quick
fix until we can enable incremental code flushing.

R=jkummerow@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11137014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 09:25:30 +00:00
verwaest@chromium.org
7c28995e5d Invalidate the enum cache when converting a transition across which the descriptors are shared. 
Review URL: https://chromiumcodereview.appspot.com/11145017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 08:38:51 +00:00
svenpanne@chromium.org
5a0176222b Consistently make the bounds check for AccessArgumentsAt explicit. 
This has the advantage that AccessArgumentsAt itself can't deopt anymore and the
bounds check is visible for the elimination phase. Furthermore, things are
simply more consistent now, a good thing in itself. :-)

Review URL: https://codereview.chromium.org/11106012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 07:25:20 +00:00
svenpanne@chromium.org
6cf48ce3d7 Fixed heap verification guards. 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11147016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12719 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 06:34:22 +00:00
danno@chromium.org
bf83c5fe32 Use immediate add when possible in space allocator 
Save one instruction in allocating new space by using an immediate add if
possible to calculate the new top of heap.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11091068
Patch from Anthony Berent <aberent@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 14:06:03 +00:00
ulan@chromium.org
c969afe137 Reland r12342: Flush monomorphic ICs on context disposal instead of context exit. 
The crashes that caused r12342 to be reverted are fixed in r12563.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11092081

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 13:49:12 +00:00
mstarzinger@chromium.org
bf85da7441 Move code flushing support into shared visitor. 
This is a first step towards incremental code flushing. The code
flushing support is now shared between full and incremental marking.
The code flusher itself is not yet activated in incremental mode and
will require some additional adaptations.

R=ulan@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11028016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 12:41:29 +00:00
mvstanton@chromium.org
b3c0ed8245 Enable --verify-heap in release mode 
R=mstarzinger@chromium.org
BUG=v8:2120

Review URL: https://codereview.chromium.org/11118018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 11:41:14 +00:00
svenpanne@chromium.org
1f3bdabd80 Ensure that we do not accidentally emit debug code. 
The call sites are more concise, the naming is better and at least one
case of superfluous code in release mode was removed.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11108011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12712 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 11:09:14 +00:00
danno@chromium.org
0457a3be0a DoNumberTagD performance improvement 
Allocate heap entry untagged and tag at end to avoid having to subtract off
the tag offset before storing the value.

BUG=

Review URL: https://codereview.chromium.org/11028115
Patch from Anthony Berent <aberent@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 10:58:25 +00:00
ulan@chromium.org
ede725d2f7 Fix vstr.cc S, [mem] to emit vstr instead of vldr. 
BUG=emits wrong instruction
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11118015
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 09:27:12 +00:00
verwaest@chromium.org
9ecabf526c Make EnumCacheBridge immutable. 
Review URL: https://chromiumcodereview.appspot.com/11048051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 08:16:49 +00:00
svenpanne@chromium.org
48d92f6167 MIPS: Consistently use named getters for Lithium operands on ARM. 
Port r12527 (24ed881a)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11109003
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12708 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 07:05:00 +00:00
jkummerow@chromium.org
c756e14b0b Prepare push to trunk. Now working on version 3.14.4. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/11094073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 15:35:24 +00:00
verwaest@chromium.org
b75705f07b Don't clear EnumLength but rather copy the enum cache. Added regression test for crashes from chromecrash. 
Review URL: https://chromiumcodereview.appspot.com/11103036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 15:33:34 +00:00
jkummerow@chromium.org
942e7424e9 Use native context to retrieve ErrorMessageForCodeGenerationFromStrings 
BUG=155076

Review URL: https://codereview.chromium.org/11093073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 14:14:24 +00:00
svenpanne@chromium.org
86bcbcdc0b HChange is only deletable under certain circumstances. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11092075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 14:14:03 +00:00
verwaest@chromium.org
ad6a21c0d0 Remove descriptors pointer. 
Secondary changes:
- don't transfer ownership back on CNLT
- turned debugging checks back into ASSERT

Review URL: https://chromiumcodereview.appspot.com/11099064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 12:01:19 +00:00
rossberg@chromium.org
00132da734 Bump variable limit further to 2^17. 
R=jkummerow@chromium.org
BUG=151625

Review URL: https://codereview.chromium.org/11099063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 11:40:10 +00:00
svenpanne@chromium.org
f03fd70d9e Added a simple dead code removal phase. 
We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects.

We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now.

This patch includes a few const-correctness fixes, most of them were necessary for this CL.

Review URL: https://codereview.chromium.org/11088027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 10:52:58 +00:00
verwaest@chromium.org
bfb2db2329 Prepare push to trunk. Now working on version 3.14.3. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11098047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 17:05:00 +00:00
verwaest@chromium.org
e5620d5a58 Also use binary search to search through valid entries. 
Review URL: https://chromiumcodereview.appspot.com/11028056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 14:48:07 +00:00
verwaest@chromium.org
c2a9d49393 Transition ownership back if the descriptors were shared via elements transitions. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11091044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 13:13:35 +00:00
verwaest@chromium.org
dde1cdfb8e Fix transition conversion from CONSTANT_FUNCTION to FIELD. 
Review URL: https://chromiumcodereview.appspot.com/11094044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 12:31:50 +00:00
verwaest@chromium.org
55e924c595 Fix CNLT regression. 
This happens when a map A with no descriptors in fast_holey_elements
mode first gets some properties, making it share descriptor arrays with
a map B to which it transitions. Then map A transitions elements kind to
dictionary_elements in map C. C stores the empty_descriptor_array in its
own transition array. When adding a property to C, C transitions to D
and shares the descriptors. If D dies, a CNLT clears the transition
array of C, making the descriptor array of A (and thus also of B) shine
through. If a property is now added to an object in state C, it'll inherit
all the properties of A (and B). If those properties had high field indices,
we do not have a large enough backing store for the single newly added
property, and we'll write out of bounds.

BUG=chromium:151749

Review URL: https://chromiumcodereview.appspot.com/11017054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 12:29:44 +00:00
mstarzinger@chromium.org
8b299a5b0e Fix compilation failure on ARM in r12685. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11103004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-10 11:58:22 +00:00
mstarzinger@chromium.org
270316e953 Improve page flag checking sequence on ARM. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11090021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-09 15:12:39 +00:00
svenpanne@chromium.org
f81b06dde5 Make sure that the context argument of HAdd is never NULL. 
Although this doesn't hurt currently, it hurts any future compiler
pass relying on the invariant that no operand is NULL.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11088026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-09 13:53:24 +00:00
rossberg@chromium.org
012ae4761c Clarify that date parsing follows Safari. 
R=ulan@chromium.org
BUG=145198

Review URL: https://codereview.chromium.org/11085006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-09 08:34:39 +00:00
mstarzinger@chromium.org
4887285da4 Make GDBJIT interface compile again. 
R=ulan@chromium.org
BUG=v8:1804

Review URL: https://codereview.chromium.org/11022007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-09 08:24:58 +00:00
svenpanne@chromium.org
5d11c5ee69 Fixed Accessors::FunctionGetPrototype's proto chain traversal. 
Actually it didn't traverse that far... ;-) Did some cleanup on the way.

R=rossberg@chromium.org
BUG=chrome:143967
TEST=regress/regress-143967.js

Review URL: https://codereview.chromium.org/11087004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12677 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-08 12:58:46 +00:00
danno@chromium.org
0a41d2731c ARM: Fast path for integer inputs to EmitVFPTruncate 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11049025
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-08 12:50:15 +00:00
rossberg@chromium.org
0c2fd0daa7 Use dot_for_symbol. 
R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11087002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12672 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-08 11:39:08 +00:00
rossberg@chromium.org
329cf12363 Make sure that names of temporaries do not clash with real variables. 
R=mstarzinger@chromium.org
BUG=v8:2322

Review URL: https://codereview.chromium.org/11035054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12668 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-05 12:47:34 +00:00
rossberg@chromium.org
b07f38a46b Reject local module declarations. 
R=mstarzinger@chromium.org
BUG=150628

Review URL: https://codereview.chromium.org/11033025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-05 09:14:08 +00:00
rossberg@chromium.org
3f7b5c338a Reject uses of lexical for-loop variable on the RHS. 
R=mstarzinger@chromium.org
BUG=v8:2322

Review URL: https://codereview.chromium.org/11031045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-05 09:07:53 +00:00
verwaest@chromium.org
6e1bafc808 Revert "Allow partial scanning of large arrays in order to avoid" 
This reverts commit r12619.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11029023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-04 11:09:17 +00:00
danno@chromium.org
a92a9c8a2c MIPS: Changed "marked" nops to use sll(zero_reg, at, type). 
We use marking bits in nops (in the 'sa' field) for debug markers, and for some IC stuff. A normal NOP in mips is sll(zero_reg, zero_reg, 0), where the 0 is a 5 bit immediate field in 'sa'.

See enum NopMarkerTypes at around line 654 of assembler-mips.h

The problem is that these markers use encodings that are reserved for the 'ssnop' and 'ehb' instructions. These are instructions used for hazard barriers.

It does not break anything, but it will slow things down a little bit as some pipeline stages are cleared, etc.

This commit changes the "marked" NOPs to sll(zero_reg, at, type) instructions, which is also a NOP operation on MIPS.

BUG=
TEST=

Review URL: https://codereview.chromium.org/10990110
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-04 09:46:50 +00:00
ulan@chromium.org
a80f7f42dd Make sure all labels are bound and linked in ARM DoModI. 
BUG=v8:2354

TBR=danno@chromium.org,subratokde@codeaurora.org

Review URL: https://chromiumcodereview.appspot.com/11038017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 16:48:45 +00:00
mstarzinger@chromium.org
739c9f6f01 Fix slot recording of code target patches. 
This makes sure that we only record relocation slots for code target
patches that happen in marked objects. Unmarked ones might be visited
again, whereas marked ones are alive and will not be visited again.

R=ulan@chromium.org
BUG=chromium:152615,chromium:144230

Review URL: https://codereview.chromium.org/11040021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 15:46:55 +00:00
jkummerow@chromium.org
e0c7d8301f Revert "Adding a high-resolution timer to platform win32." 
This reverts r12651.

Review URL: https://codereview.chromium.org/11033014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 11:07:26 +00:00
jkummerow@chromium.org
bdc466422b Adding a high-resolution timer to platform win32. 
BUG=None

Review URL: https://codereview.chromium.org/10867057
Patch from Sergey Rogulenko <rogulenko@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 10:59:44 +00:00
jkummerow@chromium.org
ecc7f4baad Replacing circular queue by single buffer in CPU Profiler. 
BUG=None

Review URL: https://codereview.chromium.org/10871039
Patch from Sergey Rogulenko <rogulenko@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 10:51:00 +00:00
jkummerow@chromium.org
dfb4218a04 Moving cpu profiling into its own thread. 
BUG=None

Review URL: https://codereview.chromium.org/10857035
Patch from Sergey Rogulenko <rogulenko@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 09:58:11 +00:00
verwaest@chromium.org
885837d981 MIPS: Fix mistake in r12549 (1597d7d9). 
This commit fixes several test failures introduced by r12549 (1597d7d9):
- mjsunit/regress/regress-760-1
- mjsunit/strict-mode
- mjsunit/string-add

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/11039014
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 07:54:41 +00:00
danno@chromium.org
08747c3a16 Support for SDIV and MLS ARM instructions, and implement DoModI using them. 
Also added support for the runtime detection to check if hardware supports SDIV/UDIV
Other new opportunities to exploit SDIV/UDIV will be done in separate issues.

Review URL: https://chromiumcodereview.appspot.com/10977051
Patch from Subrato K De <subratokde@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 21:27:33 +00:00
verwaest@chromium.org
efe955587e Allow optimistically hoisting elements transitions over accesses. 
Review URL: https://chromiumcodereview.appspot.com/10972011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 16:22:43 +00:00
jkummerow@chromium.org
db91fd3acf Prepare push to trunk. Now working on version 3.14.2. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11031002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 16:19:43 +00:00
mstarzinger@chromium.org
5b64362706 Revert r12625 due to sandbox incompatibility. 
Original message: Implement committed physical memory stats for Linux.
This had to be reverted because it crashes when compiled into Chromium
due to the sandbox not allowing the mincore call.

R=verwaest@chromium.org
BUG=v8:2191

Review URL: https://codereview.chromium.org/11023010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 12:11:06 +00:00
verwaest@chromium.org
15ebb22b6f Off-by-one error in zapping objects after right trimming. 
Review URL: https://chromiumcodereview.appspot.com/11013012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 09:48:07 +00:00
verwaest@chromium.org
6fd0e69156 Restore the descriptor array before returning allocation failure. 
BUG=chromium:151750

Review URL: https://chromiumcodereview.appspot.com/10989076

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-28 10:15:58 +00:00
verwaest@chromium.org
f623eefddb Only use OwnDescriptors to decide whether to go slow or not. 
Review URL: https://chromiumcodereview.appspot.com/10996044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-27 13:55:50 +00:00
mstarzinger@chromium.org
974a2268bb Implement committed physical memory stats for Linux. 
The patch introduces CommittedPhysicalMemory function to the Heap class
that reports committed *physical* memory acquired from the OS.
It is important because some OSes may postpone actual commitment on e.g.
first access to the previously committed region.
So reporting just plain committed size led to various weird artifacts
like DevTools showing V8 allocated memory higher than the whole process
private size.

BUG=v8:2191

Review URL: https://codereview.chromium.org/10961042
Patch from Alexei Filippov <alph@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-27 13:27:50 +00:00
erik.corry@gmail.com
fbcc4a408e Add the VFP-ness to the minor number of the keyed store elements 
IC so that the version from the snapshot is not used if we have
a more capable CPU at runtime.
Review URL: https://chromiumcodereview.appspot.com/10984065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-27 11:31:26 +00:00
erik.corry@gmail.com
dc57f54548 Fix ARM bug introduced in r12604 that caused crashes on ARM 
on crypto-md5 from SunSpider.  Bug=152402
Review URL: https://chromiumcodereview.appspot.com/10991045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12623 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-27 07:45:49 +00:00
yangguo@chromium.org
29b6518874 Fix probing in JSON.parse. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10989032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 14:59:10 +00:00
ulan@chromium.org
944f933332 Fix Clang warning about tautological compare. 
BUG=151927

R=hans@chromium.org

Patch from Hans Wennborg <hans@chromium.org>.

Review URL: https://chromiumcodereview.appspot.com/10985043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12621 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 14:42:08 +00:00
erik.corry@gmail.com
aba09dcf2e Allow partial scanning of large arrays in order to avoid 
mark stack overflow.  This is a reland of r12609 -
https://chromiumcodereview.appspot.com/10959011 - but
this time VisitPointers has been fixed (it used to assume
that the first slot was on the first page of a large object).
Review URL: https://chromiumcodereview.appspot.com/10996018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12619 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 12:17:24 +00:00
erik.corry@gmail.com
e8ffc2bebd Make the speed of incremental marking depend also on the rate 
at which we are hitting expensive write barrier operations,
not just on the rate of allocation.
Review URL: https://chromiumcodereview.appspot.com/10974003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12618 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 11:35:42 +00:00
mmassi@chromium.org
8fbfad63cd Avoid wrong imul deopt on ia32 and x64 (fixes v8 bug 2339). 
BUG=v8:2339

Review URL: https://chromiumcodereview.appspot.com/10963032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12614 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 09:57:30 +00:00
mmassi@chromium.org
e7fc0207ab Lowered kMaxVirtualRegisters (fixes v8 2139 and chrome 123822 and 128252). 
BUG=128252

Review URL: https://chromiumcodereview.appspot.com/10966031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12613 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 09:35:41 +00:00
erik.corry@gmail.com
42e5dc2cc0 Make Kraken fasta. 
Review URL: https://chromiumcodereview.appspot.com/10978040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 09:01:13 +00:00
erik.corry@gmail.com
5547815daf Revert 12609 (Allow partial scanning of large arrays) 
due to crashes in unbox-double-arrays.js test.
Review URL: https://chromiumcodereview.appspot.com/10996017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12610 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 08:55:19 +00:00
erik.corry@gmail.com
a54e007a95 Allow partial scanning of large arrays in order to avoid 
mark stack overflow.
Review URL: https://chromiumcodereview.appspot.com/10959011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12609 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 08:33:15 +00:00
yangguo@chromium.org
0f37cb0b79 Fix off-by-one error introduced in r12598. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10977009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-25 16:59:27 +00:00
danno@chromium.org
c467b2659f ARM: Small optimisation of VFP immediate creation 
Save an instruction in VFP immediate creation by passing a scratch register.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/10990024
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-25 14:32:07 +00:00
erik.corry@gmail.com
72e9f1bea1 x64 and ARM: Fix issue 2346 (order of operations in keyed store 
on arrays) and turn get-own-property-descriptor.js test into
a regression test.
Review URL: https://chromiumcodereview.appspot.com/10985017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12604 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-25 13:35:42 +00:00
danno@chromium.org
b108180cd1 Fix 2346: Generic KeyedStoreIC doesn't change length and element_kind atomically 
R=erik.corry@gmail.com
BUG=v8:2346

Review URL: https://chromiumcodereview.appspot.com/10991012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12603 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-25 09:55:44 +00:00
rossberg@chromium.org
20b1c426cf Bump number of allowed variables per scope to 65535, to address GWT. 
R=jkummerow@chromium.org
BUG=151625

Review URL: https://codereview.chromium.org/10965063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12600 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 16:22:17 +00:00
yangguo@chromium.org
2473aa31b3 Fix failures caused by r12598. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10958070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 15:03:09 +00:00
yangguo@chromium.org
681eda652d Fast path for symbol lookup in JSON.parse. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10969069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 14:23:46 +00:00
mstarzinger@chromium.org
1f13fca165 Improve --trace-gc-verbose to show sum of all spaces. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/10974006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 13:03:11 +00:00
yurys@chromium.org
26721b7dc0 This issue is for landing patch by vsevik: http://codereview.chromium.org/10966011/ 
SourceURL comments for scripts having a name. 

sourceURL comment is now preferred script name for all scripts except 
for those with non zero start position (e.g. inline scripts in HTML). 


BUG=v8:2342
Review URL: https://codereview.chromium.org/10959038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-21 08:09:34 +00:00
verwaest@chromium.org
083ee63a83 Fix CNLT for enum indices. 
Review URL: https://chromiumcodereview.appspot.com/10958015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12569 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-20 15:18:00 +00:00
verwaest@chromium.org
ea31f868e8 Deopt on storing undefined into double elements. 
Review URL: https://chromiumcodereview.appspot.com/10963010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12568 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-20 13:41:00 +00:00
ulan@chromium.org
260c7b255d Prepare push to trunk. Now working on version 3.14.1. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10958014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12565 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-20 12:09:06 +00:00
mstarzinger@chromium.org
84935fb23a Fix missing slot recodring during clearing of CallICs. 
This fixes a rare corner case that was caused by missing recording of
relocation slots when the uninitialized CallIC stub happenes to land on
an evacuation candidate and the IC is cleared via the shared function.

R=ulan@chromium.org
BUG=chromium:144230
TEST=cctest/test-heap/Regression144230

Review URL: https://codereview.chromium.org/10963005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12563 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-20 10:45:38 +00:00
jkummerow@chromium.org
a8e502fe60 Fix LBoundsCheck on x64 to handle (stack slot + constant) correctly 
BUG=150729

Review URL: https://codereview.chromium.org/10959009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12562 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-20 09:56:24 +00:00
verwaest@chromium.org
6f649aaece MIPS: Sharing of descriptor arrays. 
Port r12492 (479be376)

Original commit message:
This CL adds multiple things:
Transition arrays do not directly point at their descriptor array anymore, but rather do so via an indirect pointer (a JSGlobalPropertyCell).

An ownership bit is added to maps indicating whether it owns its own descriptor array or not.

Maps owning a descriptor array can pass on ownership if a transition from that map is generated; but only if the descriptor array stays exactly the same; or if a descriptor is added.

Maps that don't have ownership get ownership back if their direct child to which ownership was passed is cleared in ClearNonLiveTransitions.

To detect which descriptors in an array are valid, each map knows its own NumberOfOwnDescriptors. Since the descriptors are sorted in order of addition, if we search and find a descriptor with index bigger than this number, it is not valid for the given map.

We currently still build up an enumeration cache (although this may disappear). The enumeration cache is always built for the entire descriptor array, even if not all descriptors are owned by the map. Once a descriptor array has an enumeration cache for a given map; this invariant will always be true, even if the descriptor array was extended. The extended array will inherit the enumeration cache from the smaller descriptor array. If a map with more descriptors needs an enumeration cache, it's EnumLength will still be set to invalid, so it will have to recompute the enumeration cache. This new cache will also be valid for smaller maps since they have their own enumlength; and use this to loop over the cache. If the EnumLength is still invalid, but there is already a cache present that is big enough; we just initialize the EnumLength field for the map.

When we apply ClearNonLiveTransitions and descriptor ownership is passed back to a parent map, the descriptor array is trimmed in-place and resorted. At the same time, the enumeration cache is trimmed in-place.

Only transition arrays contain descriptor arrays. If we transition to a map and pass ownership of the descriptor array along, the child map will not store the descriptor array it owns. Rather its parent will keep the pointer. So for every leaf-map, we find the descriptor array by following the back pointer, reading out the transition array, and fetching the descriptor array from the JSGlobalPropertyCell. If a map has a transition array, we fetch it from there. If a map has undefined as its back-pointer and has no transition array; it is considered to have an empty descriptor array.

When we modify properties, we cannot share the descriptor array. To accommodate this, the child map will get its own transition array; even if there are not necessarily any transitions leaving from the child map. This is necessary since it's the only way to store its own descriptor array.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10918287
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 14:29:27 +00:00
mmassi@chromium.org
9dc822ca13 Fixed minus zero test (fixes v8:2133). 
BUG=v8:2133

Review URL: https://chromiumcodereview.appspot.com/10937013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12548 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 12:48:49 +00:00
mstarzinger@chromium.org
c012afb6d4 Fix setting array length to zero for slow elements. 
R=verwaest@chromium.org
BUG=chromium:146910
TEST=mjsunit/regress/regress-crbug-146910

Review URL: https://codereview.chromium.org/10937026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12547 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 11:52:33 +00:00
verwaest@chromium.org
ab94a69d3d Remove whitespace 
Review URL: https://chromiumcodereview.appspot.com/10949018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 11:09:07 +00:00
verwaest@chromium.org
947663aaa3 Use NumberOfOwnDescriptors/EnumLength for counting properties on fast objects. 
Also split CNLT into small functions.

Review URL: https://chromiumcodereview.appspot.com/10950023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 10:06:02 +00:00
verwaest@chromium.org
8b57f2694b Reduce space usage of simple transitions and descriptors holders. 
Review URL: https://chromiumcodereview.appspot.com/10915260

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 09:54:10 +00:00
mstarzinger@chromium.org
f0dcaf9a19 Fix lost arguments dropping in HLeaveInlined. 
This fixes HleaveInlined to correctly drop pushed arguments on all code
paths and addresses a corner case where the arguments stack height
mismatched at an OSR entry point.

R=jkummerow@chromium.org
BUG=chromium:150545
TEST=mjsunit/regress/regress-crbug-150545

Review URL: https://codereview.chromium.org/10938016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 08:13:46 +00:00
verwaest@chromium.org
1b9c319da2 Clear EnumIndices as well on CNLT. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10944011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-19 08:08:02 +00:00
verwaest@chromium.org
bf48856a7d MIPS: Do not go to slow mode and back to fast in initializer blocks. 
Port r12534 (4acfb92e)

BUG=
TEST=

Committed: https://code.google.com/p/v8/source/detail?r=12539

Review URL: https://chromiumcodereview.appspot.com/10905313
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 13:52:18 +00:00
verwaest@chromium.org
4edc2dbbc0 Revert due to invalid description / CL combination. 
Revert "MIPS: Do not go to slow mode and back to fast in initializer blocks."

This reverts commit 9b05931ec130e831f7496aed6f7ae32e8f2da934.

BUG=

Review URL: https://chromiumcodereview.appspot.com/10939018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12540 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 13:51:01 +00:00
verwaest@chromium.org
725818c32f MIPS: Do not go to slow mode and back to fast in initializer blocks. 
Port r12534 (4acfb92e)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10905313
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12539 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 13:40:24 +00:00
verwaest@chromium.org
5bf15c5d6c Preallocate space in descriptor arrays. 
Review URL: https://chromiumcodereview.appspot.com/10916336

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12538 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 13:25:12 +00:00
mstarzinger@chromium.org
4d485a438d Fix printing of HCallKnownGlobal. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/10941009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 11:06:05 +00:00
yangguo@chromium.org
cf85bfd725 Improve the assembly code for power function with integer exponential on x64 
The change removes one unused multiply and reschedules
the shift, multiply and jump instructions to reduce
stall. Experiment shows it improve about 20% performance
on x64 for exponetials from about 100 to 2000.

Review URL: https://chromiumcodereview.appspot.com/10939013
Patch from Xi Qian <xi.qian@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12535 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-18 08:04:31 +00:00
verwaest@chromium.org
36dd23aa1b Do not go to slow mode and back to fast in initializer blocks. 
Review URL: https://chromiumcodereview.appspot.com/10905308

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12534 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 17:18:27 +00:00
mstarzinger@chromium.org
86fd161fdc Fix casting error for receiver of interceptors. 
This fixes a casting error that occured when the receiver of a missed
or uninitialized CallIC is a Smi and there is an interceptor installed
on the prototype chain.

R=yangguo@chromium.org
BUG=chromium:149912
TEST=cctest/test-api/Regress149912

Review URL: https://codereview.chromium.org/10914317

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 14:39:10 +00:00
erik.corry@gmail.com
bafcfe5427 Fix misplaced assert in heap.cc. 
Bug=2336
Review URL: https://chromiumcodereview.appspot.com/10911334

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 11:38:24 +00:00
svenpanne@chromium.org
6f5d872410 Consistently use named getters for Lithium operands on ARM. 
Removed a dead Lithium instruction on the way.

Review URL: https://codereview.chromium.org/10907234

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 10:54:26 +00:00
mstarzinger@chromium.org
3018b875b1 Integrate map marking into static marking visitor. 
This refactors the specialized marking of map contents to be done by the
static marking visitor shared between full and incremental marking. This
also fixes an issue where some maps weren't accounted for in the object
stats tracker. But more importantly, it simplifies the code base.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/10919294

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12526 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 10:04:39 +00:00
ulan@chromium.org
4bd4fb1aa4 Throw a more descriptive exception when blocking 'eval' via CSP. 
BUG=140191

R=svenpanne@chromium.org,mkwst@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10837358

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 09:58:22 +00:00
yangguo@chromium.org
70e09a7e22 Fix build on OpenBSD/i386. 
BUG=v8:1445

Review URL: https://chromiumcodereview.appspot.com/10919314

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12522 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 07:56:15 +00:00
yangguo@chromium.org
9d94f92d56 Improve the assembly code for power function with integer exponential. 
The change removes one unused multiply and reschedules
the shift, multiply and jump instructions to reduce
stall. Experiment shows it improve about 20% performance
on x86 for exponetials from about 100 to 2000.

Review URL: https://chromiumcodereview.appspot.com/10916311

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-17 07:45:54 +00:00
danno@chromium.org
48d327d0b4 Let the embedder store arbitrary Values via Context::SetData 
In WebKit, we would like to store a void* to a data structure that contains
lots of exciting per-context data. The current API restricts us to storing only
Strings, which is less useful.

I've also cleaned up the implementation of GetData to be less convoluted.

Review URL: https://codereview.chromium.org/10907189
Patch from Adam Barth <abarth@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 16:13:23 +00:00
verwaest@chromium.org
204d22a583 Moving the WhitenessWitness back to DescriptorArray. 
TransitionArrays never allocate while being created.

Review URL: https://chromiumcodereview.appspot.com/10908237

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 15:10:31 +00:00
yangguo@chromium.org
cb72bf5735 Fix debugger's eval when close to stack overflow. 
R=verwaest@chromium.org
BUG=v8:2318

Review URL: https://chromiumcodereview.appspot.com/10914290

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12518 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 13:40:32 +00:00
verwaest@chromium.org
fb506e0864 Only count the descriptor array if it's owned by the map. 
Review URL: https://chromiumcodereview.appspot.com/10918245

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 13:37:41 +00:00
yangguo@chromium.org
a3b006058a Add checks to live edit. 
BUG=v8:2297

Review URL: https://chromiumcodereview.appspot.com/10914262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 13:31:11 +00:00
erik.corry@gmail.com
07ac7a4032 Fix test failures on nosnap builder. 
Review URL: https://chromiumcodereview.appspot.com/10915277

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 13:19:42 +00:00
verwaest@chromium.org
ad4746c8a3 CNLT with descriptors but no valid enum fields has to clear the EnumCache. 
Review URL: https://chromiumcodereview.appspot.com/10928204

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 13:15:43 +00:00
erik.corry@gmail.com
a36695e853 Microoptimization to regexps. 
Review URL: https://chromiumcodereview.appspot.com/10917260

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 12:01:12 +00:00
svenpanne@chromium.org
58c8d208f5 Consistently use named getters for Lithium operands on ia32. 
With this CL we clearly distinguish two different views on Lithium
instructions: For register allocation, the actual instruction/operand
is irrelevant, so it has only an iterator/indexed view on the
instruction operands. All other places, most importantly code
generation, use named getters for the operands now, making it easy to
see where each one is used.

Review URL: https://codereview.chromium.org/10919261

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:55:49 +00:00
erik.corry@gmail.com
8924052787 Fix compile errors on Win64. 
Review URL: https://chromiumcodereview.appspot.com/10913273

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:48:31 +00:00
svenpanne@chromium.org
924c38c063 Consistently use named getters for Lithium operands on x64 
Review URL: https://codereview.chromium.org/10933087

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12508 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:46:01 +00:00
yangguo@chromium.org
8d04c8c89f Replace r12503. Explicitly check toString() for exception in d8's print(). 
R=jkummerow@chromium.org
BUG=v8:2317

Review URL: https://chromiumcodereview.appspot.com/10911305

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:43:46 +00:00
erik.corry@gmail.com
ee55b2c2d3 Switch on code compaction on incremental GCs. 
Review URL: https://chromiumcodereview.appspot.com/10928203

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:38:45 +00:00
erik.corry@gmail.com
5a8d1764bc Refactoring of snapshots. This simplifies and improves 
the speed of deserializing code.  The current startup
time improvement for V8 is around 6%, but code deserialization
is speeded up disproportionately, and we will soon have more
code in the snapshot.
* Removed support for deserializing into large object space.
  The regular pages are 1Mbyte now and that is plenty.  This
  is a big simplification.
* Instead of reserving space for the snapshot we actually
  allocate it now.  This removes some special casing from
  the memory management and simplifies deserialization since
  we are just bumping a pointer rather than calling the
  normal allocation routines during deserialization.
* Record in the snapshot how much we need to boot up and
  allocate it instead of just assuming that allocations in
  a new VM will always be linear.
* In the snapshot we always address an object as a negative
  offset from the current allocation point.  We used to
  sometimes address from the start of the deserialized data,
  but this is less useful now that we have good support for
  roots and repetitions in the deserialization data.
* Code objects were previously deserialized (like other
  objects) by alternating raw data (deserialized with memcpy)
  and pointers (to external references, other objects, etc.).
  Now we deserialize code objects with a single memcpy,
  followed by a series of skips and pointers that partially
  overwrite the code we memcopied out of the snapshot.
  The skips are sometimes merged into the following
  instruction in the deserialization data to reduce dispatch
  time.
* Integers in the snapshot were stored in a variable length
  format that gives a compact representation for small positive
  integers.  This is still the case, but the new encoding can
  be decoded without branches or conditional instructions,
  which is faster on a modern CPU.
Review URL: https://chromiumcodereview.appspot.com/10918067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12505 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:16:56 +00:00
mstarzinger@chromium.org
77a7d9f539 Fix caching of optimized code for OSR. 
This makes sure we do not share optimized code across closures that were
optimized using OSR (for a particular OSR entry AST id) even if caching
of optimized code kicks in.

R=danno@chromium.org
BUG=v8:2326
TEST=mjsunit/regress/regress-2326

Review URL: https://codereview.chromium.org/10933088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 10:41:31 +00:00
yangguo@chromium.org
4fe330c055 Not mask exception thrown by toString in String::UtfValue etc. 
R=jkummerow@chromium.org
BUG=v8:2317

Review URL: https://chromiumcodereview.appspot.com/10917236

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12503 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 08:13:57 +00:00
danno@chromium.org
e8e675f259 Skip version 3.13.8 and fast-forward to 3.14.0 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/10907230

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12502 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 07:44:28 +00:00
verwaest@chromium.org
7a84e84143 Directly set the value in the descriptors pointer to avoid checks. 
This is the only place from where we are allowed to modify the value of
the descriptors pointer.

Review URL: https://chromiumcodereview.appspot.com/10905266

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-13 16:48:31 +00:00
verwaest@chromium.org
c037a7fe10 Clear the EnumLength fields of maps that lose their enumeration cache. 
Review URL: https://chromiumcodereview.appspot.com/10905262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12498 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-13 14:36:51 +00:00
mstarzinger@chromium.org
8db2000615 Fix API check for length of external arrays. 
R=jkummerow@chromium.org
BUG=chromium:148896
TEST=cctest/test-api/ExternalArrayLimits

Review URL: https://codereview.chromium.org/10914257

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12495 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-13 09:36:56 +00:00
verwaest@chromium.org
1d1adaf9d3 Ensure correct enumeration indices in the dict 
BUG=chromium:148376

Review URL: https://chromiumcodereview.appspot.com/10908216

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12494 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-13 08:52:55 +00:00
mmassi@chromium.org
22aed1cddd Fixed bounds check removal by restricting it to int32 indexes (and reenabled both ABCR and index dehoisting). 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10905232

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 17:00:25 +00:00
verwaest@chromium.org
ebd3241b05 Sharing of descriptor arrays. 
This CL adds multiple things:
Transition arrays do not directly point at their descriptor array anymore, but rather do so via an indirect pointer (a JSGlobalPropertyCell).

An ownership bit is added to maps indicating whether it owns its own descriptor array or not.

Maps owning a descriptor array can pass on ownership if a transition from that map is generated; but only if the descriptor array stays exactly the same; or if a descriptor is added.

Maps that don't have ownership get ownership back if their direct child to which ownership was passed is cleared in ClearNonLiveTransitions.

To detect which descriptors in an array are valid, each map knows its own NumberOfOwnDescriptors. Since the descriptors are sorted in order of addition, if we search and find a descriptor with index bigger than this number, it is not valid for the given map.

We currently still build up an enumeration cache (although this may disappear). The enumeration cache is always built for the entire descriptor array, even if not all descriptors are owned by the map. Once a descriptor array has an enumeration cache for a given map; this invariant will always be true, even if the descriptor array was extended. The extended array will inherit the enumeration cache from the smaller descriptor array. If a map with more descriptors needs an enumeration cache, it's EnumLength will still be set to invalid, so it will have to recompute the enumeration cache. This new cache will also be valid for smaller maps since they have their own enumlength; and use this to loop over the cache. If the EnumLength is still invalid, but there is already a cache present that is big enough; we just initialize the EnumLength field for the map.

When we apply ClearNonLiveTransitions and descriptor ownership is passed back to a parent map, the descriptor array is trimmed in-place and resorted. At the same time, the enumeration cache is trimmed in-place.

Only transition arrays contain descriptor arrays. If we transition to a map and pass ownership of the descriptor array along, the child map will not store the descriptor array it owns. Rather its parent will keep the pointer. So for every leaf-map, we find the descriptor array by following the back pointer, reading out the transition array, and fetching the descriptor array from the JSGlobalPropertyCell. If a map has a transition array, we fetch it from there. If a map has undefined as its back-pointer and has no transition array; it is considered to have an empty descriptor array.

When we modify properties, we cannot share the descriptor array. To accommodate this, the child map will get its own transition array; even if there are not necessarily any transitions leaving from the child map. This is necessary since it's the only way to store its own descriptor array.

Review URL: https://chromiumcodereview.appspot.com/10909007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 16:43:57 +00:00
yangguo@chromium.org
67d0506622 Correctly initialize regexp global cache. 
R=ulan@chromium.org
BUG=148378

Review URL: https://chromiumcodereview.appspot.com/10905239

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12491 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 15:26:43 +00:00
mstarzinger@chromium.org
a3733c64a7 Fix compilation issue in r12489. 
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10909190

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 14:11:37 +00:00
mstarzinger@chromium.org
f37f504de5 Fix arguments object materialization during deopt. 
This fixes materialization of arguments objects for strict mode functions during
deoptimization. We materialize arguments from the stack area where optimized
code pushes the arguments when entering the inlined environment. For adapted
invocations we use the arguments adaptor frame for materialization.

R=svenpanne@chromium.org
BUG=v8:2261
TEST=mjsunit/regress/regress-2261,mjsunit/compiler/inline-arguments

Review URL: https://chromiumcodereview.appspot.com/10908194

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12489 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 12:28:42 +00:00
yangguo@chromium.org
6a9e4048aa Introduce new API to expose external string resource regardless of encoding. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10917211

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 11:29:50 +00:00
yangguo@chromium.org
7276fa39ab Shorten code path in string allocation. 
This was part of r12430 (http://codereview.chromium.org/10857030/) which has been reverted.

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10913220

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12487 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 11:15:20 +00:00
jkummerow@chromium.org
b6770314ab Fixed CHECK failure in LCodeGen::DoWrapReceiver when --deopt-every-n-times flag is present 
BUG=148389

Review URL: https://chromiumcodereview.appspot.com/10914222

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 08:37:47 +00:00
yangguo@chromium.org
59b9a32b34 Fix edge case of extension with NULL as source string. 
BUG=144649

Review URL: https://chromiumcodereview.appspot.com/10914201

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12485 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 14:16:56 +00:00
mmassi@chromium.org
bff3d2a8a6 Fix array index dehoisting. 
BUG=141395
TEST=

Review URL: https://chromiumcodereview.appspot.com/10919214

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 14:14:32 +00:00
erik.corry@gmail.com
1987542825 Fix invariant so that we cannot record relocation slots for 
white objects when compacting.  Add flag for incremental code
compaction.
Review URL: https://chromiumcodereview.appspot.com/10907174

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 14:01:39 +00:00
mstarzinger@chromium.org
a64410d956 Prepare push to trunk. Now working on version 3.13.8. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10911208

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 13:19:02 +00:00
yangguo@chromium.org
474e34e3c5 Fix TypeError message for Date builtins. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10928108

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 12:43:17 +00:00
ulan@chromium.org
a9162af1af Fix delta computation in DoDeferredInstanceOfKnownGlobal() for ARM. 
BUG=v8:2314

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10908195

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 11:36:48 +00:00
peter.rybin@gmail.com
bda5ce9cd6 Introduce InternalProperty type and expose internal properties for bound functions 
Committed: https://code.google.com/p/v8/source/detail?r=12346

Review URL: https://chromiumcodereview.appspot.com/10834376

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-10 23:17:04 +00:00
yangguo@chromium.org
266cca47fc Add more checks for native callback results. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10928083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-10 13:38:21 +00:00
mstarzinger@chromium.org
f6cd2403e3 Fix deoptimizer for shared optimized code. 
The deoptimizer searched the stack for activations of the same function to
determine whether to trigger lazy deopting. Since we share optimized code we
actually need to search for activations of the same code (but potentially
different functions).

R=jkummerow@chromium.org
BUG=chromium:147475
TEST=mjsunit/regress/regress-crbug-147475

Review URL: https://chromiumcodereview.appspot.com/10917162

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-10 11:05:17 +00:00
yangguo@chromium.org
bf229e93eb Enable/disable LiveEdit using the (C++) debug API. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10875072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-10 09:24:17 +00:00
yangguo@chromium.org
1a0c14f12c Add checks to runtime functions. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10915062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-10 08:35:26 +00:00
svenpanne@chromium.org
7af6883098 Fixed deoptimization of inlined getters. 
It is necessary to explicitly handle the internal frame lying between the caller
of the getter and the getter itself in the deoptimizer: When the getter is
inlined, leaving the internal frame restores the correct context.

BUG=http://crbug/134609
TEST=mjsunit/regress/regress-crbug-134609

Review URL: https://chromiumcodereview.appspot.com/10910110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-07 09:01:54 +00:00
ulan@chromium.org
6df4bcfecf Add support for running low level profiler on Android. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10908122

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-06 15:01:20 +00:00
jkummerow@chromium.org
26f9e973eb Prepare push to trunk. Now working on version 3.13.7. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10928026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-06 13:45:58 +00:00
jkummerow@chromium.org
5330f5b24f Check the return value of API calls on ia32 and x64. 
This implies that the return value of native getters is checked. The nice part
is that one can even see the name of the property in question in the abort
output when the check failed.

Under some circumstances even the return value of interceptors gets checked, but
I'm not 100% sure about this, because the interceptor code is basically tuned to
death.

The change seems to have very low overhead, so it might be feasible to keep this
check enabled unconditionally.

Review URL: https://chromiumcodereview.appspot.com/10918071
Patch from Sven Panne <svenpanne@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12446 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 16:08:13 +00:00
jkummerow@chromium.org
fe5ce826c8 Add empty-handle checks to API functions (#ifdef ENABLE_EXTRA_CHECKS) 
Review URL: https://chromiumcodereview.appspot.com/10917088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 16:06:53 +00:00
jkummerow@chromium.org
c2fedcc344 Disable accessor inlining (due to broken deopts) 
BUG=134609

Review URL: https://chromiumcodereview.appspot.com/10908093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 16:06:07 +00:00
verwaest@chromium.org
61d25b01bc Push stacktrace and die if the receiver is of unknown type. 
Review URL: https://chromiumcodereview.appspot.com/10917086

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12443 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 12:30:49 +00:00
erik.corry@gmail.com
9ff7ec1c4a Fix binding in new Function(). 
Review URL: https://chromiumcodereview.appspot.com/10916114

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12442 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 11:45:58 +00:00
erik.corry@gmail.com
e5df02834b Fix some corner cases in skipping native methods using caller. 
Review URL: https://chromiumcodereview.appspot.com/10911063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12439 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 08:19:49 +00:00
yangguo@chromium.org
5ac2a5d22e Revert r12430, r12432, r12433 (basic support for Latin1). 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10905075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12438 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-04 12:23:22 +00:00
verwaest@chromium.org
a8638c1570 Support register as right operand in min/max support. 
R=jkummerow@chromium.org
BUG=chromium:145961
TEST=mjsunit/regress/regress-crbug-145961.js

Review URL: https://chromiumcodereview.appspot.com/10914072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12434 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-04 09:35:43 +00:00
yangguo@chromium.org
37c1c06108 Fix more windows build warnings. 
TBR=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10917065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12433 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 15:50:24 +00:00
yangguo@chromium.org
f653480a0c Fix windows compile errors introduced by r12430. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10907049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 15:40:00 +00:00
verwaest@chromium.org
4c7be4f6c6 Do not generate new enumeration indices for global objects. 
Review URL: https://chromiumcodereview.appspot.com/10911058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 15:15:32 +00:00
yangguo@chromium.org
74f06b1f99 Add basic support for Latin1 to the API. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10857030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 15:06:36 +00:00
yangguo@chromium.org
66a16bd63a Use local variable for getter function in Error.stack 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10911056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12429 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 15:05:08 +00:00
mstarzinger@chromium.org
74aa15bfa0 Fix FindSharedFunctionInfoInScript to not optimize. 
This prevents a corner case in FindSharedFunctionInfoInScript that would cause
functions to be optimized because an intermittent GC would clear the flag
indicating whether breakpoints are present. Above method was also moved into the
Debug class because it is only used by the debugger.

R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10914065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12428 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 14:23:00 +00:00
verwaest@chromium.org
996c84fb51 If we are trimming the whole array, just return the empty fixed array. 
Review URL: https://chromiumcodereview.appspot.com/10911054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 13:27:17 +00:00
verwaest@chromium.org
3eed540a0e Optimize dictionary enum generation. 
Review URL: https://chromiumcodereview.appspot.com/10916076

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 12:31:24 +00:00
verwaest@chromium.org
53dd910bba Directly use %ObjectKeys in json stringify. 
BUG=2312

Review URL: https://chromiumcodereview.appspot.com/10905059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 08:37:47 +00:00
svenpanne@chromium.org
b7398b33c1 MIPS: First steps towards named Litihium operands. 
Port r12383 (881d7d4d)

Original commit message:
Accessing Lithium operands via position is fragile and makes it impossible to
statically find all uses of a given operand. This CL is a step towards cleaning
this up, more to come...

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10911021
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12423 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-03 06:36:19 +00:00
verwaest@chromium.org
cc17d6dc47 Only regenerate enumeration indices if properties were deleted. 
This indicated by the NextEnumerationIndex diverging from the actual
NumberOfElements.

Review URL: https://chromiumcodereview.appspot.com/10912049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 18:12:25 +00:00
verwaest@chromium.org
9b7a673d47 Clear descriptor pointer when normalizing properties. 
Review URL: https://chromiumcodereview.appspot.com/10909029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 17:10:44 +00:00
yangguo@chromium.org
2e652e6f91 Fix VS2005 build. 
R=jkummerow@chromium.org
BUG=v8:2313

Review URL: https://chromiumcodereview.appspot.com/10907029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 14:45:31 +00:00
verwaest@chromium.org
2b91f23b58 MIPS: Use a special EnumLength field to indicate number of valid enum cache values. 
Port r12400 (03ae62de)

Original commit message:
This is preparatory work for sharing Enum Caches.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10914025
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12417 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 09:50:27 +00:00
yangguo@chromium.org
5dd51bafef Cache results in SearchRegExpMultiple. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10837290

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 09:28:01 +00:00
rossberg@chromium.org
40f44b1d4f Activate fixed ES5 readonly semantics by default. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10912042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 09:12:31 +00:00
verwaest@chromium.org
a4f7ebe5a0 Removed trailing whitespace. 
Review URL: https://chromiumcodereview.appspot.com/10916020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12414 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-30 18:10:09 +00:00
verwaest@chromium.org
90db487390 Elements load depends on the type of the receiver. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10918005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-30 17:31:32 +00:00
svenpanne@chromium.org
c3df19e692 Fixed comment and simplified the related code a bit. 
TBR=erik.corry@gmail.com

Review URL: https://chromiumcodereview.appspot.com/10911003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12411 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-30 06:45:45 +00:00
yangguo@chromium.org
5087f3ac48 Prepare push to trunk. Now working on version 3.13.6. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10899032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 15:29:41 +00:00
yangguo@chromium.org
4e2027bbc2 Revert r12379 (Add checks to external string API). 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10897027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 15:23:48 +00:00
rossberg@chromium.org
3d35ecf3b8 Slightly simplify declaration of node types. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10886010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12405 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 09:33:14 +00:00
rossberg@chromium.org
a6e45ce7b8 Introduce some predicates over variable modes. 
These should be handy when we add more declaration forms for Harmony.

R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10897010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 09:19:53 +00:00
yangguo@chromium.org
5419ee7ba0 Release stack trace data after firing Error.stack accessor. 
BUG=v8:2308

Review URL: https://chromiumcodereview.appspot.com/10886012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 07:51:48 +00:00
svenpanne@chromium.org
de3c3c0198 Added IC support for native setters on the prototype chain. 
Review URL: https://chromiumcodereview.appspot.com/10873057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-29 06:12:46 +00:00
jkummerow@chromium.org
f9d4856289 Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers. 
BUG=None
TEST=Included in CL.

Committed: https://code.google.com/p/v8/source/detail?r=12389

Review URL: https://chromiumcodereview.appspot.com/10795074
Patch from Sigurður Ásgeirsson <siggi@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12401 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 14:43:28 +00:00
verwaest@chromium.org
78037d0a4e Use a special EnumLength field to indicate number of valid enum cache values. 
This is preparatory work for sharing Enum Caches.

Review URL: https://chromiumcodereview.appspot.com/10824079

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 14:20:50 +00:00
rossberg@chromium.org
ccc827a6f8 Allocate block-scoped global bindings to global context. 
- The global object has a reference to the current global scope chain.
  Running a script adds to the chain if it contains global lexical declarations.
- Scripts are executed relative to a global, not a native context.
- Harmony let and const bindings are allocated to the innermost global context;
  var and function still live on the global object.
  (Lexical bindings are not reflected on the global object at all,
  but that will probably change later using accessors, as for modules.)
- Compilation of scripts now needs a (global) context (previously only eval did).
- The global scope chain represents one logical scope, so collision tests take
  the chain into account.

R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10872084

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12398 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 11:25:08 +00:00
rossberg@chromium.org
1dbf670713 Index script compilation cache over context, too, 
in preparation for global lexical scope.

R=ulan@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10878007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 10:49:23 +00:00
yangguo@chromium.org
7cbca775ee Reland regexp global optimizations. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/10872010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 09:37:41 +00:00
yangguo@chromium.org
ee6ec7e24e Prepare push to trunk. Now working on version 3.13.5. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10895004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12393 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 09:03:07 +00:00
yangguo@chromium.org
d3dca2adb0 Disable array bounds checks elimination. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10895002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 07:39:45 +00:00
svenpanne@chromium.org
f6f4798189 Print reason for disabling optimization. Kill --trace-bailout flag. 
The reason for disabling optimization of a given function is carried around in
CompilationInfo. The new mechanism is general enough that --trace-opt now
subsumes everything --trace-bailout could print, so we nuked the latter flag.

Review URL: https://chromiumcodereview.appspot.com/10868106

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 07:18:06 +00:00
verwaest@chromium.org
a713f82aa6 Revert "Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers." 
This reverts commit r12389.

TBR=jkummerow@chromium.org, CC=siggi@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10870108

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12390 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 19:47:02 +00:00
jkummerow@chromium.org
0a6493b5a8 Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers. 
BUG=None
TEST=Included in CL.

Review URL: https://chromiumcodereview.appspot.com/10795074
Patch from Sigurður Ásgeirsson <siggi@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12389 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 18:03:38 +00:00
ulan@chromium.org
7b1d13affc Revert r12342 "Flush monomorphic ICs on context disposal instead of context exit." because of canary channel crashes. 
BUG=144230
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10868068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 16:08:27 +00:00
ulan@chromium.org
b588b0949f Disallow updates to ic_with_type_info_count with negative values. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10883064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 15:17:14 +00:00
verwaest@chromium.org
efb53e1499 Make order of addition the primary order of descriptor arrays. 
The order by name is maintained as secondary order by using unused bits in the property details.

This is preliminary work towards sharing descriptors arrays.

The change allows us
- to get rid of the LastAdded bits in the map, binding it to the number of valid descriptors for the given map
- to avoid resorting by enumeration index to create the cache
- (maybe in the future, depending on performance) to get rid of the enumeration cache altogether.

Although generally the number_of_descriptors equals the NumberOfOwnDescriptors in the current version, this is preliminary work towards sharing    descriptors, where maps may have more descriptors than are valid for the map.

Review URL: https://chromiumcodereview.appspot.com/10879013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12385 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 13:47:34 +00:00
rossberg@chromium.org
cd585f26ab Introduce global contexts to represent lexical global scope(s). 
They are yet unused; actual allocation of global lexical bindings in these contexts is implemented in a separate follow-up CL.

R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10876067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12384 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 09:40:26 +00:00
svenpanne@chromium.org
27c9ef9f79 First steps towards named Litihium operands. 
Accessing Lithium operands via position is fragile and makes it impossible to
statically find all uses of a given operand. This CL is a step towards cleaning
this up, more to come...

Review URL: https://chromiumcodereview.appspot.com/10878073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 09:39:05 +00:00
svenpanne@chromium.org
a30eab48cf Unbreak MIPS build. 
TBR=vegorov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10868102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 09:05:07 +00:00
yurys@chromium.org
f2c0e06e64 Remove unused method and add line breaks after each serialized edge 
Review URL: https://chromiumcodereview.appspot.com/10874063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 08:49:00 +00:00
ulan@chromium.org
2aad64d902 MIPS: Fix rounding in Uint8ClampedArray setter. 
Port r12364 (31e40def)

Original commit message:
According to Web IDL spec, we should round to
the nearest integer, choosing the even integer
if it lies halfway between two.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10870049
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12380 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-27 07:29:36 +00:00
yangguo@chromium.org
89cd0677dc Add check to external string resource. 
Extensions are a source of external strings where we don't perform check yet.

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10878025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12379 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-24 13:01:52 +00:00
verwaest@chromium.org
5b2282c691 MIPS: Check that index and length are Smi in bounds check. 
Port r12362 (cd39337c)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10876053
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12376 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-24 09:06:23 +00:00
danno@chromium.org
3544e2e875 Disable speculative LICM when it may lead to unnecessary deopts 
BUG=v8:2250
R=vegorov@chromium.org
TEST=tests/mjsunit/regress/regress-2250.js

Review URL: https://chromiumcodereview.appspot.com/10867033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-23 21:08:58 +00:00
vegorov@chromium.org
106a83252d Fix DoDeferredNumberTagU to keep the value in xmm1 instead of xmm0 on x64. 
xmm0 is not saved across runtime call on x64 because MacroAssembler::EnterExitFrameEpilogue preserves only allocatable XMM registers unlike on ia32 where it preserves all registers.

Cleanup handling of shifts: SHR can deoptimize only when its a shift by 0, all other shift never deoptimize.

Fix type inference for i-to-t change instruction. On X64 this ensures that write-barrier is generated correctly.

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10868032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-23 16:14:01 +00:00
erikcorry
c6094f5237 Fix semaphore on MacOS. This is a commit of https://chromiumcodereview.appspot.com/10867009/ for Fedor Indutny 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-23 11:15:06 +00:00
erik.corry@gmail.com
44c3b03a29 Make the performance of the VM more predictable by not letting the hash seed 
affect the order in which the local variables are processed in the compiler.
Review URL: https://chromiumcodereview.appspot.com/10870033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-23 08:15:38 +00:00
vegorov@chromium.org
96f55352fc When processing collected uint32 instructions skip those with non-Integer32 representation. 
R=danno@chromium.org
BUG=test262 S15.4.4.8_A2_T3.js

Review URL: https://chromiumcodereview.appspot.com/10867017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12369 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 19:00:02 +00:00
vegorov@chromium.org
8ae899584f Fix order of conversions in ObjectToInt32 and ObjectToUint32 helpers. 
TBR=danno@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10878012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 15:58:16 +00:00
vegorov@chromium.org
f476d4d431 Allow uint32 value on optimized frames if they are consumed by safe operations. 
Safe operations are those that either do not observe unsignedness or have special support for uint32 values:

- all binary bitwise operations: they perform ToInt32 on inputs;
- >> and << shifts: they perform ToInt32 on left hand side and ToUint32 on right hand side;
- >>> shift: it performs ToUint32 on both inputs;
- stores to integer external arrays (not pixel, float or double ones): these stores are "bitwise";
- HChange: special support added for conversions of uint32 values to double and tagged values;
- HSimulate: special support added for deoptimization with uint32 values in registers and stack slots;
- HPhi: phis that have only safe uses and only uint32 operands are uint32 themselves.

BUG=v8:2097
TEST=test/mjsunit/compiler/uint32.js

Review URL: https://chromiumcodereview.appspot.com/10778029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 15:44:17 +00:00
verwaest@chromium.org
fcaab50e05 While finding the valueOf descriptor, only look at the key entries. 
Review URL: https://chromiumcodereview.appspot.com/10870012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 15:08:48 +00:00
ulan@chromium.org
05e407b083 Fix Windows build after r12364. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10880004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 14:45:25 +00:00