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616 Commits

Author SHA1 Message Date
danno@chromium.org
1b89cbf817 Separate Cell and PropertyCell spaces 
This makes it possible to store additional information on property cells, for example Type and optimized Code dependencies.

R=mstarzinger@chromium.org

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 15:03:44 +00:00
mstarzinger@chromium.org
93ab1864ea Allow the deoptimizer translation to track de-materialized objects. 
This allows the deoptimizer to materialize objects (e.g. the arguments
object) while deopting without having a consective stack area holding
the object values. The LEnvironment explicitly tracks locations for
these values and preserves them in the translation.

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

Review URL: https://codereview.chromium.org/16779004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 14:22:49 +00:00
yangguo@chromium.org
74556569d1 Reland "Enable map dependency to in-flight compilation info." 
BUG=248076
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16782004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15077 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 09:43:22 +00:00
yangguo@chromium.org
6da97b1d4a Revert "Enable map dependency to in-flight compilation info." 
This includes r15032, r15030 and r15005.

R=ulan@chromium.org
BUG=248076

Review URL: https://chromiumcodereview.appspot.com/16482004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 11:55:56 +00:00
jkummerow@chromium.org
9447014780 Skip some conditional deopts for Div/Mul when all uses are truncating. 
- set "can be minus zero" flag properly so minus-zero checks are skipped
- skip "integer result?" check in division code when uses are truncating
- drive-by cleanup: consolidated computation of kCanOverflow flag for Add/Sub into range inference phase

BUG=v8:2132
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/16741002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 11:43:57 +00:00
jkummerow@chromium.org
57632e208a Increase sanity of integer division handling on ARM 
- In the INT32 BinaryOpStub, fix type feedback collection for DIV,
  bringing it in line with other platforms.
- In Lithium codegen, emit proper inlined code, don't call the stub.
- Drive-by fix: assert appropriate CpuFeaturesScope for SDIV.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16082008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 10:47:44 +00:00
svenpanne@chromium.org
66bb4c5b8d Improve code for integral modulus calculation. 
Depending on what we know about the right operand, we basically do 3
different things (and the code is actually structured this way):

* If we statically know that the right operand is a power of 2, we do
  some bit fiddling instead of doing a "real" modulus calculation.
  This should actually be done on the Hydrogen level, not on the
  Lithium level, but this will be a separate CL.

* If type feedback tells us that the right operand is a power of 2, we
  do the same as above, but guarded by conditional deoptimization to
  make sure that the assumption is still valid. In the long run, we
  should make this guard visible on the Hydrogen level to make it
  visible for GVN and other optimizations.

* In the general case we only do the minimum steps necessary and don't
  try to be too clever, because cleverness actually slows us down on
  real-world code.

If we look at the code gerators for LModI, we actually see that we
basically have 3 (4 on ARM) fundamentally different translations. I
don't really like lumping them together, they should probably be
different Lithium instructions. For the time being, I restructured the
generators to make this crystal-clear, at the cost of some duplication
regarding the power-of-2 cases. This will go away when we do the
strength reduction on the Hydrogen level, so I'd like to keep it as it
is for now.

Note that the MIPS part was only slightly restructured, there is still
some work to do there.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/15769010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15034 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 12:05:54 +00:00
yangguo@chromium.org
b0afb77731 Fix parallel recompilation wrt transition maps dependency. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15896038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 11:33:23 +00:00
yangguo@chromium.org
1594eca8ed Fix parallel recompilation wrt initial object/array map dependency. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/16641002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-10 11:17:48 +00:00
yangguo@chromium.org
17cfe68015 Enable map dependency to in-flight compilation info. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/16542003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 13:27:03 +00:00
mvstanton@chromium.org
8a02fd3be3 Turn off allocation site info for crankshafted array constructor calls. 
Once we crankshaft a method, we should turn off allocation site info for
constructed arrays. Additionally, the semantics for doing this were
awkward because the constructed array code stubs get an
AllocationSiteMode as a minor key, but it's used as a permission to
determine the final mode locally based on ElementsKind. I refactored
this to a simpler boolean for override or local control.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/16206007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 12:48:51 +00:00
mstarzinger@chromium.org
d7975dfdab Deprecate HAllocateObject in favor of HAllocate. 
This models the instantiation of an implicit receiver for CallNew nodes
in hydrogen using HAllocate together with generic stores instead of one
specialized HAllocateObject instruction, hence creating a single choking
point for inlined allocation in optimized code.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/15714005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 08:28:33 +00:00
yangguo@chromium.org
7f8a3d803c Make assertion scopes thread safe. 
R=svenpanne@chromium.org
BUG=

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-03 15:32:22 +00:00
verwaest@chromium.org
1a4a904bef Replace DeoptimizeOnUndefined with whitelisting AllowUndefinedAsNan 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15952007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-30 09:11:06 +00:00
olivf@chromium.org
88755fb22a Convert ToBooleanStub to a HydrogenStub. Currently just using the existing HBranch instruction, which is still fully implemented in Lithium. Will refactor HBranch in a next CL. 
[
CL breaks mips, since the deoptimizer in Deoptimizer::DoTranslateCommand(...) does not convert smis passed to the stub via a0.
]

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/15302004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 14:49:28 +00:00
yurys@chromium.org
665c644940 Fix two CPU profiler tests on ARM and MIPS simulators 
Use Simulator::get_pc instead of Simulator::get_register(pc) as the latter
will return value adjusted by Instruction::kPCReadOffset.

BUG=v8:2628
R=loislo@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/16154004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14880 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 12:09:03 +00:00
verwaest@chromium.org
7d32e7451f Don't explicitly pass requested representations to constants; implement ConstantS 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15932011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 10:47:55 +00:00
verwaest@chromium.org
290909268a Update the gap resolver to support Smi constants. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15664005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14850 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 12:37:29 +00:00
hpayer@chromium.org
5b469a6f41 Added old data space allocation infrastructure for pretenuring. 
BUG=

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 09:38:28 +00:00
verwaest@chromium.org
cf9b1170d1 Support Smi in CompareIDAndBranch 
BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16134003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 09:24:39 +00:00
verwaest@chromium.org
aa2444269b Fix the hole loading optimization. 
- Holes are only ever loaded as double or tagged.
- Change to tagged has to deoptimize on undefined (no implicit
  conversions from double the hole NaN -> tagged undefined).

BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16099006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 17:33:14 +00:00
verwaest@chromium.org
a64b7f926f Remove HCheckSmi, LCheckSmi and rename LCheckSmiAndReturn to LCheckSmi. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15841007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 09:58:46 +00:00
verwaest@chromium.org
3cb8f95c91 Tag smi-constants as smi. This also fixes code that copies holes into arrays. 
BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15861009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-27 08:43:58 +00:00
verwaest@chromium.org
2a28f53b18 Fix hole handling, and ensure smi representation is handled properly 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16013003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 13:40:02 +00:00
titzer@chromium.org
77f85fa0d3 Remove offset() and is_in_object() from hydrogen and lithium LoadNamedField and StoreNamedField and use the appropriate methods on HObjectAccess instead 
BUG=

Review URL: https://codereview.chromium.org/15881003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 12:40:08 +00:00
verwaest@chromium.org
c9a22a3c8d Replace tagged keys for fast access by smi, and use smi in boundscheck. 
BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15763004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 08:52:35 +00:00
verwaest@chromium.org
632f591884 Tag length of FixedArrayBase and smi-array[x] as smi representation 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15858006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 14:38:39 +00:00
yangguo@chromium.org
a1e18bdf3c Improve SeqStringSetChar implementation. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15743006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 09:51:06 +00:00
verwaest@chromium.org
06b7bf60e1 Always require exact maps. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/13923003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14768 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 09:19:18 +00:00
verwaest@chromium.org
308e69755b Implement HChange support for Smis and use it in Load/StoreNameField 
BUG=
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15303004

Patch from Daniel Clifford <danno@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 08:32:07 +00:00
verwaest@chromium.org
d1b5a2518d Handle holes in smi-untag from LoadKeyed requiring hole handling. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15737003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14756 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-22 16:32:33 +00:00
rodolph.perfetta@gmail.com
45ec481659 ARM: Smi refactoring and improvements. 
Refactoring:
 * consistent use of SmiTag/Untag
 * added a few Smi macros and helpers
Improvements
 * small optimisations (e.g. merging untag and cmp #0)
 * added fixed point to double conversion instructions for simpler conversions

More on the last point: a Smi can be seen as a fixed point number with the
a one bit fractional part. Fixed to double instructions allow us to convert
a Smi to a double without untagging.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/15085026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14724 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-17 15:38:14 +00:00
olivf@chromium.org
8bbe48c7b9 Add a HBreak instruction for debugging 
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14997008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 14:24:47 +00:00
yurys@chromium.org
69c2f54d32 Skip samples where top function's stack frame is not setup properly 
Stack iterator takes return address based on the frame pointer (ebp) and detects JS frames based on value at fp + StandardFrameConstants::kMarkerOffset. So in order the iterator to work correctly this values should be already setup for the current function. Stack frame is constructed at the very beginning of JS function code and destroyed before return. If sample is taken before before the frame construction is completed or after it was destroyed the stack iterator will wrongly think that FP points at the current functions frame base and will skip callers frame. To avoid this we mark code ranges where  stack frame doesn't exist and completely ignore such samples.

This fixes cctest/test-cpu-profiler/CollectCpuProfile flakiness.

BUG=v8:2628
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14253015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14670 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 22:51:33 +00:00
danno@chromium.org
6862babfd6 Remove HIsNilAndBranch (it's now unused) 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14971005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 12:56:53 +00:00
danno@chromium.org
b65b6d735f Ensure that soft-deopts don't count against opt_count 
This makes sure that Crankshaft doesn't disable optimization to early on hot functions that still contain unexecuted code without type information.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14738009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 11:45:33 +00:00
danno@chromium.org
05e8e0e7b4 Elide hole checks on KeyedLoads of holey double arrays 
Improves NavierStokes by about 5%

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/15014020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 07:35:26 +00:00
verwaest@chromium.org
df57747fc4 Track heap objects. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14996004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 17:17:50 +00:00
mstarzinger@chromium.org
8829a94c24 Remove obsolete HArrayLiteral instruction. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/14847013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14613 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 09:52:08 +00:00
mstarzinger@chromium.org
efe91b56f6 Remove obsolete HObjectLiteral instruction. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/14972008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14612 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 09:47:05 +00:00
mvstanton@chromium.org
ef5211d8af Parallel compilation bug: LCallNewArray dereferenced a handle unnecessarily. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14761010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 16:48:27 +00:00
verwaest@chromium.org
52008429b7 Use mutable heapnumbers to store doubles in fields. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14850006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 15:02:08 +00:00
titzer@chromium.org
dbcd0e925a Remove HLoadElements instruction and replace with use of more general HLoadNamedField. This removes the need for both the hydrogen and lithium instructions and allows both kinds of loads to be GVN'd. 
Review URL: https://codereview.chromium.org/14556020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 12:21:16 +00:00
verwaest@chromium.org
8b25614aa9 Always tag number candidate as smi if it does not come from load-keyed. 
Review URL: https://chromiumcodereview.appspot.com/14556007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 14:41:06 +00:00
svenpanne@chromium.org
f1e9ec2e12 Do not use repeated subtractions in mod-i, it hurts performance in general. 
ARM only: Check for -0 only when really necessary. Tiny code de-duplication.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14499011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 13:45:34 +00:00
verwaest@chromium.org
4b010329c9 Fix arm port of tracking field representations. Based on Rodolph Perfetta's comments 
BUG=

Review URL: https://chromiumcodereview.appspot.com/14522003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 19:21:54 +00:00
verwaest@chromium.org
99e17bb12a Track storage types of instance variables. 
Review URL: https://chromiumcodereview.appspot.com/14146005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 15:30:41 +00:00
mvstanton@chromium.org
84355ae411 Lithium: avoid registers for constants when possible. 
BUG=

Review URL: https://codereview.chromium.org/14364010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 14:04:07 +00:00
mvstanton@chromium.org
e751ad06d9 Constructed arrays can be created with Hydrogen code stubs. The feature is still off by default (--optimize-constructed-arrays). 
BUG=

Review URL: https://codereview.chromium.org/12385014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 16:00:32 +00:00
yangguo@chromium.org
28bbe46a98 Disallow dereferencing deferred handles when generating optimized code. 
R=mvstanton@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14403015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 09:23:07 +00:00
rodolph.perfetta@gmail.com
eed788a7bb ARM: VFP cleanup now that VFP2 is the baseline. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/14119008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 21:30:57 +00:00
svenpanne@chromium.org
07a2a9cd19 Various improvements regarding the way we print code code comments. 
* All Lithium instructions have an associated Hydrogen instruction now,
  simplifying things.

* Consistently print <Lithium instruction number,Hydrogen value id> prefixes.

* Do not print uninteresting Lithium instructions like empty gaps, jumps to the
  next instruction, etc.

* Removed special handling of HChange-like instructions, it is totally unclear
  why they had this special treatment. If we really want to print more
  information about Lithium instructions, we should do it in a totally way,
  anyway (e.g. by unifying things with the generation of hydrogen*.cfg files).

* Made deferred code and the jump table stand out a little bit more.

* Print info about special blocks like loop headers and OSR entries.

Review URL: https://codereview.chromium.org/14371005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 09:48:35 +00:00
mvstanton@chromium.org
37d11fb0f0 Improvements in lithium code generation. Recognizing if some operands are constants, we can often save on registers and instructions. 
BUG=

Review URL: https://codereview.chromium.org/14022011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14364 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 07:47:25 +00:00
mvstanton@chromium.org
a8521a9e77 RecordWriteStubs on ARM need to save FP registers 
A previous change erroneously stopped saving fp registers for write stubs in
snapshotted code. This CL restores correct behavior, and makes sure code that
saves fp registers checks at runtime for 16 or 32 fp registers. Also fix a bug
in the arm simulator debugger.

BUG=

Review URL: https://codereview.chromium.org/14246032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14359 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 16:01:57 +00:00
svenpanne@chromium.org
0af76e96ea Simplified LCodeGen::GetNextEmittedBlock and LCodeGen::EmitGoto a bit. 
GetNextEmittedBlock is always called with the same argument (an instance
variable), so let's remove it. In EmitGoto, avoid assignment to an argument.

This CL is split off another CL for easier reviewing.

Review URL: https://codereview.chromium.org/14246031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14349 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 12:02:12 +00:00
mvstanton@chromium.org
ad2c227e01 Saving Hydrogen code stubs in the snapshot requires us to respect the availability of VFP32DREGS. 
BUG=

Review URL: https://codereview.chromium.org/13878011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 15:09:48 +00:00
svenpanne@chromium.org
275891079a Cleaned up and fixed code comment handling a bit. 
* Let GCC check the arguments of LCodeGen::Coment.
* Fixed a few call sites.
* Made basic blocks a little bit more visible in the code output.
* Sorted #includes.

Review URL: https://codereview.chromium.org/14079007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 13:45:19 +00:00
rodolph.perfetta@gmail.com
02f85aed31 ARM: VFP tweaks/optimisations. Further address slow FPSCR accesses. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/14121004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 15:21:01 +00:00
yangguo@chromium.org
fa2c88d2fa Remove bogus CPU scope. 
R=mvstanton@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14295004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14281 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 12:33:39 +00:00
jkummerow@chromium.org
586c4e74b6 Replace OS::MemCopy with OS::MemMove (just as fast but more flexible). 
Review URL: https://codereview.chromium.org/13932006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 12:30:51 +00:00
m.m.capewell@googlemail.com
5c6b09e6c6 ARM: Enable VFP default NaN mode 
BUG=none
TEST=Default NaN tests added to test-assembler-arm.

Review URL: https://codereview.chromium.org/14109010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-15 15:55:47 +00:00
rodolph.perfetta@gmail.com
ee7bdef143 ARM: Small copy optimization. Copying 64bits at a time. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/14121006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 14:46:43 +00:00
hpayer@chromium.org
acc4568aff Enable pretenuring of fast literals in high promotion mode. 
BUG=

Review URL: https://codereview.chromium.org/13952008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 09:45:46 +00:00
rossberg@chromium.org
8e8bbc0e6c * src/generator.js: Add methods and intialization for generator meta-objects. 
* src/contexts.h:
* src/bootstrapper.cc (InitializeExperimentalGlobal): Make generator
  meta-objects, and store maps for constructing generator functions
  and their prototypes.

* src/factory.h:
* src/factory.cc (MapForNewFunction): New helper.
  (NewFunctionFromSharedFunctionInfo): Use the new helper.

* src/heap.cc (AllocateFunctionPrototype, AllocateInitialMap): For
   generators, allocate appropriate prototypes and maps.

* src/code-stubs.h:
* src/arm/code-stubs-arm.h:
* src/arm/full-codegen-arm.h:
* src/ia32/code-stubs-ia32.h:
* src/ia32/full-codegen-ia32.h:
* src/x64/code-stubs-x64.h:
* src/x64/full-codegen-x64.h: Allow fast closure creation for generators,
using the appropriate map.

* test/mjsunit/harmony/builtins.js: Add a special case for
  GeneratorFunctionPrototype.prototype.__proto__.

BUG=
TEST=mjsunit/harmony/generators-runtime

Review URL: https://codereview.chromium.org/13192004

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 16:28:19 +00:00
svenpanne@chromium.org
12e74509d4 Separate Math Lithium operations. 
This makes the logic in the Hydrogen->Lithium translation much clearer, avoids a
hand-written dispatch and even opened up opportunities for simpler register
constraints for some operations/platforms.

Doing the same for the Hydrogen level might be done in a follow-up CL.

Review URL: https://codereview.chromium.org/13841003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 13:27:06 +00:00
hpayer@chromium.org
2db9e62fc8 Build fast literals in hydrogen. 
BUG=

Review URL: https://codereview.chromium.org/12880017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14211 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-10 13:52:08 +00:00
danno@chromium.org
008e73d6a0 Activate generation of Crankshafted KeyedStores 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/13866005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 13:44:22 +00:00
svenpanne@chromium.org
f7244bce57 Unbreak --deopt-every-n-times. 
Review URL: https://codereview.chromium.org/13779003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-08 07:51:32 +00:00
danno@chromium.org
ffe7f6a1ba Remove ARM support for VFP2 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13560007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-07 04:34:20 +00:00
mstarzinger@chromium.org
af25102f41 Compile FastCloneShallowArrayStub using Crankshaft. 
R=danno@chromium.org

Review URL: https://codereview.chromium.org/12521011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-04 17:55:43 +00:00
danno@chromium.org
cb650a51de Remove extranous holder load in some prototype-chain checking cases 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/13620003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-04 11:38:10 +00:00
dslomov@chromium.org
a172a5e839 Remove (H|L)JSArrayLength instructions 
BUG=

Review URL: https://codereview.chromium.org/12491023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-03 16:25:24 +00:00
rodolph.perfetta@gmail.com
db9cc639d5 Fix bugs in softfloat code path. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/13008018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-02 18:25:09 +00:00
hpayer@chromium.org
8792cac5cc Generalizing remaining Allocate functions in the macro assemblers used in pretenuring. 
BUG=

Review URL: https://codereview.chromium.org/12440041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-25 15:54:15 +00:00
rossberg@chromium.org
83d4a41dec ES6 symbols: turn symbols into a proper primitive type 
(qua last week's TC39)

Specifically:
- Install Symbol constructor function on the global object.
- Adjust code generation for typeof.
- Remove IsSymbol built-in, IS_SYMBOL macro now defined using typeof.
- Remove hack that allowed symbols as constructor results, and some other special cases.
- Remove symbol_delegate and GetDelegate function.
- Extend ToBoolean stub to handle symbols.
- Extend ToNumber to return NaN on symbols.
- Poison symbol's toString function, and thereby ToString on symbols.

R=mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12957004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14051 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-22 16:33:50 +00:00
danno@chromium.org
ffd0c712e8 Implement many KeyedStoreStubs using Crankshaft 
- Addition of a compiled hydrogen stub for KeyedStores.
- Inlining of "grow" stubs into OPTIMIZED_FUNCTIONs
- Addition of new "ignore OOB" ic stub that silently swallows out-of-bounds stores to external typed arrays.
- Addition of new "copy-on-write" ic stub that inlines allocation and copying operations for cow array
- New stub are generated with Crankshaft, so they are automatically inlined into OPTIMIZED_FUNCTIONs

Review URL: https://codereview.chromium.org/12221064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-20 10:37:13 +00:00
svenpanne@chromium.org
e4e4447305 Pass Isolates explicitly in Deoptimizer-related code. 
Removed a few ancient useless ASSERTs on the way. Reduced the number of train wrecks.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12917002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13965 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-18 13:57:49 +00:00
hpayer@chromium.org
05a71fc9e4 Allow direct allocation in old pointer space. 
BUG=

Review URL: https://codereview.chromium.org/12314155

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-14 08:32:52 +00:00
mvstanton@chromium.org
30ca31f470 HInnerAllocatedObject instruction allows hydrogen code to carve up 
allocated regions into sub objects.

BUG=

Review URL: https://codereview.chromium.org/12812002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-13 11:05:48 +00:00
rodolph.perfetta@gmail.com
1c6d5e4cf4 ARM: Optimsisation of ECMA ToInt32. 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/12567004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-12 11:25:50 +00:00
mvstanton@chromium.org
1691f43b8b To fully support hydrogen code stubs which accept a variable number of arguments, 
the HReturn/LReturn instruction needs to be able to determine argument count
from a stack evaluation rather than as a constant from scope.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12613004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-08 21:07:55 +00:00
rodolph.perfetta@gmail.com
50703c70a9 Split and replace the EmitVFPTruncate routine to only do what is needed. Floor 
and Round have been rewritten to use the default rounding mode.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/12393008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13833 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 19:35:59 +00:00
svenpanne@chromium.org
e4edbb0535 Cleaned up CpuFeature scope handling. 
First of all, it has nothing to do with Isolates, it is related to the assembler
at hand. Furthermore, the saving/restoring is platform-independent. Cleaned up
some platform-specific stuff on the way.

Note that there are some things which still need some cleanup, like e.g. using
EnumSet instead of uint64_t, making Probe() more uniform across platforms etc.,
but the CL is already big enough.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12391055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 10:48:16 +00:00
ulan@chromium.org
be2b1a980f Improve integer division on ARM in favor of power of 2 constant divisor 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/12052032
Patch from Rajeev R Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 08:47:59 +00:00
mvstanton@chromium.org
c4caf766bf Allocation Info Tracking, continued. 
Addresses missing cases for array literals.
Adds support for "new Array()" call sites. This isn't complete yet, I have to run with --noinline_new.

BUG=

Review URL: https://codereview.chromium.org/11818021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 16:06:34 +00:00
rossberg@chromium.org
090d09d685 ES6 symbols: Implement Symbol intrinsic and basic functionality 
- Add --harmony-symbols flag.
- Add Symbol constructor; allow symbols as (unreplaced) return value from constructors.
- Introduce %CreateSymbol and %_IsSymbol natives and respective instructions.
- Extend 'typeof' code generation to handle symbols.
- Extend CompareIC with a UNIQUE_NAMES state that (uniformly) handles internalized strings and symbols.
- Property lookup delegates to SymbolDelegate object for symbols, which only carries the toString method.
- Extend Object.prototype.toString to recognise symbols.

Per the current draft spec, symbols are actually pseudo objects that are frozen with a null prototype and only one property (toString). For simplicity, we do not treat them as proper objects for now, although typeof will return "object". Only property access works as if they were (frozen) objects (via the internal delegate object).

(Baseline CL: https://codereview.chromium.org/12223071/)

R=mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12296026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 13:28:55 +00:00
rossberg@chromium.org
55f93b5532 Renamed "symbols" to "internalized strings" throughout the code base, 
in preparation of the introduction of ES6 'symbols' (aka private/unique names).

The SymbolTable became the StringTable. I also made sure to adapt all comments. The only remaining use of the term "symbol" (other than unrelated uses in the parser and such) is now 'NewSymbol' in the API and the 'V8.KeyedLoadGenericSymbol' counter, changing which might break embedders.

The one functional change in this CL is that I removed the former 'empty_string' constant, since it is redundant given the 'empty_symbol' constant that we also had (and both were used inconsistently).

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12210083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-28 17:03:34 +00:00
svenpanne@chromium.org
bfaf38d2fd Miscellaneous profile-driven Isolate plumbing. 
While doing this, it became clear that quite a few functions should not be
static and should better live in various classes as instance methods, but I'll
leave this for a later CL.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12314152

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 14:45:59 +00:00
mstarzinger@chromium.org
ea5e9edac4 Fix materialization of arguments objects with unknown values. 
This fixes the deoptimizer to materialize arguments objects of correct
length even in cases where the actual argument values are unknown and
were optimized away by Crankshaft. This can happen if only the length
property or the identity of an arguments object is used.

R=svenpanne@chromium.org
BUG=chromium:163530
TEST=mjsunit/regress/regress-crbug-163530

Review URL: https://codereview.chromium.org/12335132

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13763 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 14:37:51 +00:00
svenpanne@chromium.org
6e829ed485 Added Isolate parameter to CodeStub::GetCode(). 
According to gprof, this was the #1 cause for TLS access during an Octane run.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12317141

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13756 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 12:33:24 +00:00
ulan@chromium.org
87265114c4 Emit VMLS for multiply-subtract on ARM. 
BUG=none

Review URL: https://chromiumcodereview.appspot.com/12319113
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13748 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 10:24:40 +00:00
mstarzinger@chromium.org
7d681e014d Compile FastCloneShallowObjectStub using Crankshaft. 
This changes FastCloneShallowObjectStub to be compiled independent of
the target architecture. It also adds tracing to the deoptimizer for
compiled stubs and contains some minor bugfixes.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/12220074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13732 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-26 13:08:08 +00:00
ulan@chromium.org
9ebcfb41e2 ARM: Make DoStoreKeyedFixedDoubleArray faster; don't allow conditional Vmov 
This patch makes us generate faster code for DoStoreKeyedFixedDoubleArray,
by using a branch rather than a conditional Vmov instruction.

Conditional VFP instructions are not a great idea in general, and it was
especially bad in this case because Vmov expands to a bunch of instructions.
For this reason, the patch also removes the 'cond' parameter from Vmov.

Thanks to Rodolph for pointing me to this!

BUG=none

Review URL: https://chromiumcodereview.appspot.com/12316096
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-25 16:15:37 +00:00
svenpanne@chromium.org
fb6776e84a Made Isolate a mandatory parameter for everything Handle-related. 
Unified parameter order of CreateHandle with the rest of v8 on the way. A few
Isolate::Current()s had to be introduced, which is not nice, and not every place
will win a beauty contest, but we can clean this up later easily in smaller steps.

Review URL: https://codereview.chromium.org/12300018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13717 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-25 14:46:09 +00:00
ulan@chromium.org
3a1eca4242 Remove prototype checks for leaf maps in optimized code. 
Review URL: https://chromiumcodereview.appspot.com/12225099

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-20 11:49:54 +00:00
ulan@chromium.org
817ce7285f Register dependent codes before populating deoptimization data, which can cause GC. 
R=mstarzinger@chromium.org

BUG=crash on nosnap-debug with stress-compaction

Review URL: https://chromiumcodereview.appspot.com/12256038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13669 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-14 13:48:20 +00:00
mmassi@chromium.org
2fb5064487 Separated smi check from HBoundsCheck. 
Review URL: https://codereview.chromium.org/12208013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13645 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-12 11:44:08 +00:00
mstarzinger@chromium.org
89474cdede Fix bugs in DeoptimizeIf when lazy deopt is requested. 
This also implements --trap-on-deopt on x64 and simplifies the
implementation of this flag on all architectures.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/12223053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-08 17:32:47 +00:00
jkummerow@chromium.org
b1d7878c7f Fix DoubleStackSlot-to-DoubleStackSlot moves on ia32. Unify platform-independent code. 
BUG=173907

Review URL: https://codereview.chromium.org/12207063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13617 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-07 13:15:41 +00:00
danno@chromium.org
0c3575c874 Generate the TransitionElementsStub using Crankshaft 
This includes:
* Adding support for saving callee-clobbered double registers in Crankshaft code.
* Adding a new "HTrapAllocationMemento" hydrogen instruction to handle AllocationSiteInfo data in crankshafted stubs.
* Adding a new "HAllocate" hydrogen instruction that can allocate raw memory from the GC in crankshafted code.
* Support for manipulation of the hole in HChange instructions for Crankshafted stubs.
* Utility routines to manually build loops and if statements containing hydrogen code.

Review URL: https://codereview.chromium.org/11659022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-04 12:01:59 +00:00
mmassi@chromium.org
89c4153581 Foundation for the use of informative definitions in Crankshaft. 
Review URL: https://codereview.chromium.org/12090021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-29 15:46:34 +00:00
danno@chromium.org
80157b61a8 Fix Mac problem with stubs initialization 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/12096040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-29 15:28:05 +00:00
svenpanne@chromium.org
905548d2f6 Improved printing of jump tables. 
Review URL: https://codereview.chromium.org/12093016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-28 14:50:47 +00:00
ulan@chromium.org
bed569b548 ARM: Make use of d16-d31 when available. 
Review URL: https://chromiumcodereview.appspot.com/11428137
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-23 16:29:48 +00:00
yangguo@chromium.org
3c22524119 Avoid handle dereference during graph optimization. 
With parallel recompilation enabled, objects made accessible by handles may
have changed between graph construction and graph optimization. Therefore
we must not assume that information on those objects remain the same between
those two phases. To police this, we forbid handle dereferencing during
graph optimization.
Exceptions to this rule are:
 - Dereferencing the handle to obtain the raw location of the object. This
   is safe since parallel recompilation acquires RelocationLock
 - Some places that dereference the handle for a type check. These are checked
   to be safe on a case-by-case basis.

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12049012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-23 13:52:00 +00:00
yangguo@chromium.org
7f331f6280 Make HCheckPrototypeMaps compatible with parallel recompilation. 
HCheckPrototypeMaps currently records the prototype and the holder of the
prototype chain (both ends of the chain) and assumes that the chain elements
and their maps did not change in during the entirety of Crankshaft. The actual
traversal of the prototype chain happens in Lithium at code generation.
With parallel compilation, this assumption is not longer correct.

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11864013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-21 15:49:00 +00:00
mmassi@chromium.org
ca78326b66 Revert r13409 ("Make the array bounds check elimination phase optional (and set the foundation for introducing SSI in a simple way).") because of a crash in octane/mandreel. 
Review URL: https://chromiumcodereview.appspot.com/11962041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 16:09:08 +00:00
jkummerow@chromium.org
a496e0d06a Don't emit code for instructions that are hiding behind an HSoftDeoptimize 
Review URL: https://codereview.chromium.org/11377135

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13412 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 14:07:47 +00:00
mmassi@chromium.org
583f67b54b Make the array bounds check elimination phase optional (and set the foundation for introducing SSI in a simple way). 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11783055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 12:39:16 +00:00
mvstanton@chromium.org
7884216804 Additional work to get array literal allocation tracking working, even with --always-opt 
BUG=

Review URL: https://codereview.chromium.org/11817017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 08:41:27 +00:00
yangguo@chromium.org
45f20e366a Introduce ENABLE_LATIN_1 compile flag 
Mostly a bunch of renaming when flag is disabled.

R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11759008
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 10:30:54 +00:00
ulan@chromium.org
4403daca1a ARM: generate integer zero in a uniform manner. 
ARM generated integer zero as either Operand(0, RelocInfo::NONE32), or
Operand(0), or Operand::Zero(). My change makes it use only
Operand::Zero().

This has no functional impact, it's pure cleanup.

R= ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11745030
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-07 09:43:12 +00:00
ulan@chromium.org
0606abbaab Rename RelocInfo::NONE to RelocInfo::NONE32. 
This CL only does renaming, nothing else.

Followup to:
https://chromiumcodereview.appspot.com/11695006/

There are now NONE and NONE64 RelocInfo types, but only ARM uses them
both at the same time. They were added in:
https://chromiumcodereview.appspot.com/11191029/

R= ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11744020
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-04 10:56:24 +00:00
danno@chromium.org
45a012ec2c Elide unnecessary context reload in generated stubs. 
Review URL: https://codereview.chromium.org/11550005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13290 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-28 16:25:38 +00:00
danno@chromium.org
653a66f527 ARM: Use division instructions in lithium and stubs 
BUG=none
TEST=Added to test/mjsunit/math-floor-of-div.js, math-floor-of-div-nosudiv.js

Review URL: https://codereview.chromium.org/11316105
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 16:31:19 +00:00
danno@chromium.org
09fec366f8 Remove redundant loads in DoCheckMaps 
Hoist the loop-invariant load out of the loop and call the other CheckMap function
BUG=none
TEST=none

Committed: https://code.google.com/p/v8/source/detail?r=13200

Review URL: https://codereview.chromium.org/11369014
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 14:05:14 +00:00
yangguo@chromium.org
9eccd63ccc Fix ARM code for DoModI. 
R=ulan@chromium.org
BUG=166379

Review URL: https://chromiumcodereview.appspot.com/11618020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 09:07:05 +00:00
danno@chromium.org
1f4b4625ff Re-land Crankshaft-generated KeyedLoad stubs. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11528003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-18 16:25:45 +00:00
jkummerow@chromium.org
e318155c6e Revert "Remove redundant loads in DoCheckMaps" 
This reverts r13200.

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/11552017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-12 12:51:47 +00:00
danno@chromium.org
3f83e10f44 Remove redundant loads in DoCheckMaps 
Hoist the loop-invariant load out of the loop and call the other CheckMap function
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/11369014
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-11 20:33:44 +00:00
danno@chromium.org
64fc1f99cb Revert 13157, 13145 and 13140: Crankshaft code stubs. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11498006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-10 11:09:12 +00:00
ulan@chromium.org
c5c8276f59 Improve double to integer truncation on ARM. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/11412272
Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-07 11:29:27 +00:00
yangguo@chromium.org
c75ca45000 Improve array to string conversion. 
BUG=v8:2435

Review URL: https://chromiumcodereview.appspot.com/11348349

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 15:49:22 +00:00
danno@chromium.org
f19959cd22 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Committed: https://code.google.com/p/v8/source/detail?r=13117

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 11:04:10 +00:00
danno@chromium.org
66f6a8182c Revert 13117: "Enable stub generation using Hydrogen/Lithium (again)" 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11415261

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 17:16:51 +00:00
danno@chromium.org
78b09625d5 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 15:51:05 +00:00
ulan@chromium.org
45fc19124f ARM: make MacroAssembler::LoadRoot emit exactly one instruction when in predictable code size scope. 
BUG=v8:2439
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11280276

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 13:40:37 +00:00
danno@chromium.org
0a3bcc8c05 Revert 13105: "Enable stub generation using Hydrogen/Lithium." 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11414262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:45:45 +00:00
danno@chromium.org
c115ff4e33 Enable stub generation using Hydrogen/Lithium. 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:31:30 +00:00
svenpanne@chromium.org
5a4e0f1c79 Simplify and fix code aging. 
Making the code size predictable is hard, and to make things even more
complicated, the start of a function can contain various stuff like calls to a
profiling hook, receiver adjustment or dynamic frame alignment. Instead of
tackling all these problems separately, we now simply record the offset where
patching should happen later in the Code object itself.

Review URL: https://codereview.chromium.org/11316218

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-29 07:38:00 +00:00
jkummerow@chromium.org
79563b22c9 Faster implementation of Math.exp() 
Review URL: https://codereview.chromium.org/11418149

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-26 13:12:35 +00:00
mmassi@chromium.org
a0582112f8 Revert r13025 and r13026 (they introduced a bug on arm and regressed octane crypto). 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11316151

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13039 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-23 10:53:03 +00:00
svenpanne@chromium.org
9de70742a6 PredictableCodeSizeScope checks the expected size now. 
We still have some problems on ARM, so the size check currently
optional. Furthermore, we don't use PredictableCodeSizeScope at all
place where we should do it. Both issues are cleaned up in upcoming
CLs.

Review URL: https://codereview.chromium.org/11348195

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 14:59:52 +00:00
mmassi@chromium.org
5e7f30a596 Use the property load IC for accessing the array length. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11299004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-21 11:49:15 +00:00
ulan@chromium.org
6a6012c0e7 Emit RSB for subtraction with constant lhs on ARM 
Instead of generating the following for "100 - x":

  mov r1, #100
  subs r0, r1, r0

this patch makes Crankshaft generate this:

  rsbs r0, r0, #100

thus saving a register and a mov.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11308040
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-20 14:46:16 +00:00
jkummerow@chromium.org
1c086d1202 Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps and comparisons 
Review URL: https://chromiumcodereview.appspot.com/10837165

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-14 15:59:45 +00:00
ulan@chromium.org
74492ab2d4 Emit VMLA for multiply-add on ARM 
Review URL: https://chromiumcodereview.appspot.com/11293061
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-14 11:01:18 +00:00
danno@chromium.org
bd4e114b8e Add code again to allow reclaiming old unexecuted functions. 
When code objects in the heap for FUNCTIONs and OPTIMIZED_FUNCTIONs are marked by the GC, their prologue is patched with a call to a stub that removes the patch. This allows the collector to quickly identify code objects that haven't been executed since the last full collection (they are the ones that sill contain the patch). The functionality is currently disabled, but can be activated by specifying the "--age-code".

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/10837037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12898 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:18:11 +00:00
danno@chromium.org
63ada1da1b Move vldr in DoLoadKeyedFastDoubleElement before the hole check 
This reschedules instructions to better absorb VFP load latency.
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11363086
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 21:38:46 +00:00
ulan@chromium.org
f106c9c9f7 Add rotate-right instruction to hydrogen and use it instead of bitwise operations 
of the form ((x >>> i) | (x << (32 - i))).

This CL is based on https://chromiumcodereview.appspot.com/10984057/
by Jay Conrod <dconrod@codeaurora.org>.

R=danno@chromium.org,mstarzinger@chromium.org,dconrod@codeaurora.org

Review URL: https://chromiumcodereview.appspot.com/11033005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 13:28:10 +00:00
svenpanne@chromium.org
9de1d40d28 Improve handling of property loads on the proto chain. 
Previously Crankshaft emitted a generic load for these, now we emit a load of a
named field, guarded by a proto chain check.

LCheckPrototypeMaps now returns the holder, which is for free, because it
already had to check its map as the last step, anyway. This is in sync with what
StubCompiler::CheckPrototype does.

Review URL: https://codereview.chromium.org/11338030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 08:53:54 +00:00
mvstanton@chromium.org
a85fd03caa Consolidated all the key store/load classes in the Hydrogen and Lithium 
space into just two:
HLoadKeyed/HLoadKeyedGeneric and HStoreKeyed/HStoreKeyedGeneric
LLoadKeyed/LLoadKeyedGeneric and LStoreKeyed/LStoreKeyedGeneric
BUG=

Review URL: https://codereview.chromium.org/11238016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-02 09:18:53 +00:00
danno@chromium.org
e96d49047b Remove redundant jump to deoptimization (the jump already exists in DoCheckMapCommon) 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11265044
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-29 11:45:40 +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
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
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
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
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
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