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437 Commits

Author SHA1 Message Date
hpayer@chromium.org
68271ddc0e Print HAllocate flags in --trace-hydrogen. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/21374004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15994 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-08-01 07:56:36 +00:00
danno@chromium.org
4cdffbf4fe Improve instruction creating/adding shorthand in HGraphBuilder 
Add multi-argument templates for New, NewUncasted, Add and AddUncasted that
call boilerplate HInstruction::New methods rather than the constructor directly.
This allows for automatic passing of the zone and context for instructions that
need them.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/21356002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15990 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 14:58:39 +00:00
bmeurer@chromium.org
44e4c2756a Avoid the use of set_type() in instruction constructors. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/21348002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 10:56:46 +00:00
bmeurer@chromium.org
8823e8e89f Get rid of HLinkObjectInList. 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/21345002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15983 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 10:47:44 +00:00
verwaest@chromium.org
3143f5f88b Remove special handling of fields in combination with elements transitions in Crankshaft. 
Instead first try to keep ICs monomorphic if elements kinds generalize. If that fails, use standard polymorphic handling. The Try*PolymorphicAsMonomorphic methods will automatically produce code similar to the previous approach using CheckMapsWithTransitions.

BUG=
R=hpayer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/21107004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15982 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 10:08:05 +00:00
bmeurer@chromium.org
843cf1f654 Compile fix for older GCCs. 
TBR=titzer@chromium.org

Review URL: https://codereview.chromium.org/21142007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15981 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 10:03:59 +00:00
bmeurer@chromium.org
bacc626f57 Fix HType handling for HConstant with external references. 
We cannot use set_type() with HType::None() in the HConstant
constructor, since set_type() asserts that the new type is a
subtype of the previous one, but HType::None() is not a subtype
of HType::Tagged() which is the initial type set by the HValue
constructor.

This patch adds an optional type parameter to the HValue,
HInstruction and HTemplateInstruction constructors.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/21317004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15980 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 09:38:37 +00:00
titzer@chromium.org
d87296eb1f Eagerly set the types of many kinds of hydrogen instructions. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/21072002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 09:29:30 +00:00
hpayer@chromium.org
b6a6fc76dc Allocation space decisions are precisely made in hydrogen. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/21089006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15970 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-31 07:03:16 +00:00
verwaest@chromium.org
f328c2c77c HasNonSmiUse should ignore tagged uses 
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/21105006

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15950 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-30 09:06:42 +00:00
bmeurer@chromium.org
b019910a38 This adds generic support for ExternalReferences in Hydrogen (and Lithium), as required for AddIncrementCounter. 
R=danno@chromium.org, titzer@chromium.org

Review URL: https://codereview.chromium.org/19562003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-29 13:56:51 +00:00
titzer@chromium.org
37ee4a0369 Fix IsDeletable() for HStringAdd, HStringCharCodeAt, HStringCharFromCode. 
BUG=
R=mstarzinger@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/20241005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-29 12:35:43 +00:00
titzer@chromium.org
f403969d1f Remove Uninitialized from HType. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/20711002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15925 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-29 09:42:57 +00:00
verwaest@chromium.org
5de783d47e Adding Smi support to Add, Sub, Mul, and Bitwise 
R=svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/20070005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-25 11:53:38 +00:00
titzer@chromium.org
5dd517ff3b Move representation into HObjectAccess and remove from HLoadNamedField and HStoreNamedField. 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18503006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15875 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-25 09:37:52 +00:00
mmassi@chromium.org
b5a43f48a6 New array bounds check elimination pass (focused on induction variables and bitwise operations). 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/17568015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-25 06:37:25 +00:00
verwaest@chromium.org
6b83c868f0 Convert CONSTANT_FUNCTION to CONSTANT 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19485008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-24 12:34:50 +00:00
mstarzinger@chromium.org
3cdeb2f9cd Avoid adding HWrapReceiver during graph building. 
This adds an early check to the graph builder which prevents adding an
HWrapReceiver instruction if the receiver type is already known at graph
building time. Also HAllocate no longer unnecessarily postpones setting
it's type until type inference but sets it right away. These changes are
in preparation for escape analysis.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/19493005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-24 08:05:49 +00:00
hpayer@chromium.org
6c83b7d6c1 Support double allocations when folding allocation. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19956002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 19:27:00 +00:00
danno@chromium.org
8cbbdd066c Unify SoftDeoptimize and Deoptimize hydrogen instructions 
BUG=chromium:258519
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/19528003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 13:35:10 +00:00
verwaest@chromium.org
7e08f81e6d Also eliminate map checks with transitions. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19888006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15821 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 10:01:06 +00:00
verwaest@chromium.org
babce318d1 Eliminate map checks of constant values. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19954005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 09:18:42 +00:00
olivf@chromium.org
b8d7bee4a3 Avoid tagged values for Instructions that truncate the operands with ToNumber. 
I case the ToNumber is applied to a non numeric value but its not observable (some constants and oddballs) we should already do it in hydrogen...

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/19798002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-23 09:13:59 +00:00
hpayer@chromium.org
067d921cc0 Limit the amount of memory that can be folded together. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19804002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15804 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 12:34:23 +00:00
hpayer@chromium.org
ecc31a0cee Prefill pre-allocated memory of folded allocation with one pointer fillers when heap verifier is on. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19723004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15798 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-22 11:07:43 +00:00
mvstanton@chromium.org
3761e0388d With >= 64 non-string instance types, I removed an optimization that allowed us to detect internalized strings with a single bit test. (https://code.google.com/p/v8/source/detail?r=15358) But that change caused a regression, so here is an improvement: 
Put the internalized string types in the lower 64 entries of
INSTANCE_TYPE, and non-internalized string types in the next 64 entries.
This way we can restore the single bit check.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/19749004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15773 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 11:29:11 +00:00
bmeurer@chromium.org
d750a6dcd8 Consistently use HStringAdd instead of HCallStub with CodeStub::StringAdd. 
Previously there were two ways to actually use the StringAddStub
from Hydrogen:

- Either using HStringAdd (which implied NO_STRING_CHECK_IN_STUB
  and and does the argument handling internally),
- or using HCallStub with CodeStub::StringAdd (which implied
  NO_STRING_ADD_FLAGS and expected the arguments to be on the
  stack already).

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/19541003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15771 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-19 09:42:15 +00:00
mvstanton@chromium.org
b9f0c06ab2 The gc should be able to traverse all AllocationSites for decision making. The sites are threaded into a weak list. Special problems include: 
* Allocations of AllocationSites occur in generated code, so generated code needs to be able to add to the list. For now I have a special hydrogen instruction, though it would be nice to use general purpose instructions.
* The snapshot contains AllocationSites, and these need to be re-threaded into the list on deserialization.

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

BUG=
R=mstarzinger@chromium.org

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 11:50:24 +00:00
mvstanton@chromium.org
4465c83104 Calls to HCheckFunction can be eliminated if the value is an HConstant. 
Reland "Calls to HCheckFunction can be eliminated if the value is an HConstant"
(https://codereview.chromium.org/18751003/).

The CL failed because of heap snapshot issues. alph@chromium.org just checked in
a fix for that (https://code.google.com/p/v8/source/detail?r=15694).

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/19504007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-17 08:46:01 +00:00
hpayer@chromium.org
a65cb03955 Added tracing information to the case when allocation folding cannot be performed. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/19290008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-16 08:54:41 +00:00
mstarzinger@chromium.org
35052bc2ea Reland deprecation of HAllocateObject in favor of HAllocate. 
This essentially relands r14930 and r14935 with adaptions to the current
code base. It 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/19207002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-15 15:12:16 +00:00
hpayer@chromium.org
90056df999 Use filler maps for folded allocations when verify heap is turned on. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/18863011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 15:29:02 +00:00
hpayer@chromium.org
90a8ac78bd Remove filler map when folding allocations and turn on allocation folding. 
BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/18384004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15631 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 13:53:54 +00:00
hpayer@chromium.org
99d541a486 Allocation folding integrated into the GVN phase. 
BUG=
R=mstarzinger@chromium.org, titzer@chromium.org

Review URL: https://codereview.chromium.org/18596005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-11 11:41:33 +00:00
mvstanton@chromium.org
448b268962 Revert "Calls to HCheckFunction can be eliminated if the value is an HConstant" 
This reverts commit 3f96122cc572f7a0b638c30f65328c3cb3666795.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18998003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 12:19:37 +00:00
olivf@chromium.org
857178ad23 Replace custom builtin invocation instructions by a generic version 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18154004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 09:02:23 +00:00
jkummerow@chromium.org
f0811f4e6f Fix and cleanup can_be_minus_zero computation 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/18434004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 11:15:24 +00:00
mvstanton@chromium.org
eea586f2a1 Calls to HCheckFunction can be eliminated if the value is an HConstant 
function, and that function handle matches the target handle.

BUG=
R=danno@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18751003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15540 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-08 09:00:59 +00:00
danno@chromium.org
bd50e6d38f Refactoring and cleanup of control instructions 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18331004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 10:40:14 +00:00
danno@chromium.org
345cc98a25 Generate StoreGlobal stubs with Hydrogen 
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=rossberg@chromium.org, ulan@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=15419

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 10:34:02 +00:00
yangguo@chromium.org
02674ee414 Keep two empty lines between declarations for cpp files 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/18509003

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 09:52:11 +00:00
olivf@chromium.org
240c7aced9 Convert UnaryOpStub to a HydrogenCodeStub 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18712002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-05 09:26:22 +00:00
olivf@chromium.org
950a372834 Revert "Convert UnaryOpStub to a HydrogenCodeStub" 
The problem is the HCallConstantFunction which is not context sensitive, so we leak the builtin. We first need a Hydrogen version of __ IvokeBuiltin.

BUG=
R=danno@chromium.org, machenbach@chromium.org

Review URL: https://codereview.chromium.org/18650003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-03 19:57:25 +00:00
olivf@chromium.org
0d2fed8f26 Convert UnaryOpStub to a HydrogenCodeStub 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17229005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-03 14:56:53 +00:00
danno@chromium.org
77c20c30a3 Revert r15419: "Generate StoreGlobal stubs with Hydrogen" 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18357004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 15:12:21 +00:00
danno@chromium.org
a3bce19868 Generate StoreGlobal stubs with Hydrogen 
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-01 13:22:13 +00:00
jkummerow@chromium.org
c7a9bffbcf Clean up the usage of V8_TARGET_ARCH_${arch} and V8_HOST_ARCH_${arch} 
R=jkummerow@chromium.org

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

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 15:34:48 +00:00
mvstanton@chromium.org
83519ec87a Hydrogen array constructor cleanup and improvements 
* Cleanup of LCallNewArray::PrintDataTo() method
* Created HCallNewArray::PrintDataTo()
* Created many more tests in array-constructor-feedback.js
* Removed redundant instructions in
  GenerateRecordCallTarget
* Bugfix in CreateArrayDispatchOneArgument: on a call to
  new Array(0), we'd like to set the type feedback cell to
  a packed elements kind, but we shouldn't do it if the
  cell contains the megamorphic sentinel.
* When used from crankshaft, ArrayConstructorStubs can
  avoid verifying that the function being called is the
  array function from the current native context, relying
  instead on the fact that crankshaft issues an
  HCheckFunction to protect the constructor call. (this
  new minor key is used in LCodeGen::DoCallNewArray(), and
  influences code generation in
  CodeStubGraphBuilderBase::BuildArrayConstructor()).
* Optimization: the array constructor specialized for
  FAST_SMI_ELEMENTS can save some instructions by looking
  up the correct map on the passed in constructor, rather
  than indexing into the array of cached maps per element
  kind.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17091002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 13:16:14 +00:00
bmeurer@chromium.org
f11af230e8 Refactor HInferRepresentation into an HPhase and use the phase zone. 
Rename HInferRepresentation to HInferRepresentationPhase,
following naming scheme suggested by danno@chromium.org in
https://codereview.chromium.org/17458002

The HInferRepresentationPhase now uses the phase zone for all its
allocations.

Depends on https://codereview.chromium.org/17587008

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/18054002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 07:40:35 +00:00
olivf@chromium.org
21cd74eaa2 Avoid Unnecessary Smi Checks 
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16026023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-26 17:37:55 +00:00
mstarzinger@chromium.org
bd90e71b01 Fix ugly typo in HValue::UpdateRepresentation. 
R=jkummerow@chromium.org
TEST=mjsunit/math-min-max --extra-flags="--gc-interval=500"

Review URL: https://codereview.chromium.org/17580019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-24 14:34:07 +00:00
jkummerow@chromium.org
cbc8ed7110 HBoundsCheck shouldn't ignore Tagged input representations unconditionally 
BUG=v8:2740
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16917003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 12:50:02 +00:00
rossberg@chromium.org
0977c60984 Use AST's type field and merge types for unary, binary & compare ICs 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17468003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 11:10:06 +00:00
yangguo@chromium.org
b7b92bd9ac Short-circuit embedded cons strings. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17418003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 09:24:30 +00:00
verwaest@chromium.org
917ac7d413 Improve range analysis for smi phi 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17498002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 14:11:52 +00:00
olivf@chromium.org
29d3461529 Let NaN flow as double into HBranch + some minor improvements 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/17082003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 13:51:03 +00:00
verwaest@chromium.org
4922e3d206 Flexible representation for BuildIncrement, but CannotBeTagged. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17028017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 13:22:46 +00:00
mstarzinger@chromium.org
ea87d08557 Revert r14930 and r14935 temporarily. 
This is a temporary revert to track down a potential perf regression
introduced in r14930. The following two changes were reverted:
- "Deprecate HAllocateObject in favor of HAllocate."
- "Added pretenuring support for call new."

R=danno@chromium.org
BUG=chromium:247504

Review URL: https://codereview.chromium.org/17491002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 10:48:14 +00:00
palfia@homejinni.com
93609033e1 MIPS: Optimise Math.floor(x/y) to use integer division for MIPS. 
Use div instruction if some divisors do not have magic number.

Based on commit r11427 (318a9598).

This commit also ports commit r15161 (554d45c1).

BUG=

Review URL: https://codereview.chromium.org/16951016
Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15181 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-17 15:06:41 +00:00
jkummerow@chromium.org
681cfe9cad Fix MathFloorOfDiv optimization on non-SDIV ARM 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/17069006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 18:15:49 +00:00
verwaest@chromium.org
328aeb14fb Revert "Improved range analysis for bitwise operations." 
This reverts commit r15170

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17093005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 17:25:03 +00:00
verwaest@chromium.org
98167ed0a8 Improved range analysis for bitwise operations. 
R=fschneider@chromium.org, verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9156001

Patch from Stephen Adams <sra@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15170 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 16:55:34 +00:00
jkummerow@chromium.org
fb1057ad5d Fix MathFloorOfDiv canonicalization ASSERT failures 
- remove outdated ASSERT about instruction type
- add inserted HChanges to the graph

R=danno@chromium.org

Review URL: https://codereview.chromium.org/17094005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 16:27:52 +00:00
jkummerow@chromium.org
de71923b20 Make MathFloorOfDiv optimization trigger more often 
BUG=v8:2205
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16973002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:33:15 +00:00
verwaest@chromium.org
7cebf3f684 When HBranch sees Smi, it sees Smi. 
R=mvstanton@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17064006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:23:05 +00:00
verwaest@chromium.org
41c63d8899 Only infer int32 in HBoundsCheck if input is double or int32. 
R=jkummerow@chromium.org, mmassi@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17057004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15156 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:14:07 +00:00
verwaest@chromium.org
84759d7e6e Cleanup RepresentationFromUseRequirements, move it to HValue and use it where relevant 
BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17005004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:13:48 +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
verwaest@chromium.org
8afeaabe57 Allow boundscheck elimination to work on Smi keys. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16035016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 11:00:39 +00:00
verwaest@chromium.org
a3dccd15b0 Don't ignore the actual input representation in UnaryMathOperations 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16035014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14997 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 09:11:33 +00:00
verwaest@chromium.org
cb3645fee9 Infer the range of Math.abs 
R=jkummerow@chromium.org, svenpanne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16268009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-07 09:07:53 +00:00
verwaest@chromium.org
8bd4199fdd Don't force representations in the loop builder. 
Additionally, infer None-typed CompareIDAndBranch to Smi+actual input.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16365004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-05 17:24:14 +00:00
verwaest@chromium.org
95cd146359 Fix win build 
BUG=
R=hpayer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15934019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 17:15:32 +00:00
jkummerow@chromium.org
20cedf9a4b Liveness analysis for environment slots in Hydrogen 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/15533004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 16:41:24 +00:00
verwaest@chromium.org
00addf5adc Replace log2 with MostSignificantBit 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15994015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 15:39:56 +00:00
verwaest@chromium.org
277ec5d7b2 Infer the range of XOR as limited by the highest possible changed bit. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16361003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 12:26:39 +00:00
mstarzinger@chromium.org
f8db2414f2 Deprecate FACTORY helper macro. 
This removes the FACTORY helper macro to avoid accidental TLS access
when using the factory. Most internal code has access to the Isolate by
now whereas tests which are not performance critical still heavily use
TLS access through explicit Isolate::Current() calls.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/16337005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14931 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 10:30:05 +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
svenpanne@chromium.org
b9e025a8dc Collect type feedback for power-of-2 right operands in BinaryOps. 
Improved --trace-ic output for unary/binary ops a bit on the way. Moved int32_t/uint32_t conversion helpers around.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/15735005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 07:49:45 +00:00
verwaest@chromium.org
179ac2cd0c Improve smi support in crankshaft 
- Recover smi in phis if inputs are smi-typed
- Don't record smi-typed values as pointers

BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16240003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-03 16:57:36 +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
svenpanne@chromium.org
7bfe1436d3 Improve range analysis for modulo operations. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15952004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-29 12:42:04 +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
8276673a73 Only allow non-double if the observed representations are int32. 
R=mvstanton@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15988005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 13:28:59 +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
f98ee1a223 Tag smi-constants as smi. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16010004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 08:00:42 +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
verwaest@chromium.org
c417df74f4 Update representation-from-uses to support smi. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15692004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 12:29:37 +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
titzer@chromium.org
94b4240f5c Introduce ObjectAccess, which is used by LoadNamedField and StoreNamedField to denote what parts of an object are referred to by a given load or store. Refactor HGraphBuilder to use ObjectAccess, which removes the need to manually set GVN flags and simplifies the code as well. 
Review URL: https://codereview.chromium.org/14284010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 08:38:21 +00:00
jkummerow@chromium.org
f691f48c14 Avoid creating duplicate entries for a value when merging HSimulates 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/15660003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14766 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 09:17:01 +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
titzer@chromium.org
5746d38351 Fix code gen bug on arm and mips; SeqStringSetChar overwrites a register; Add better default PrintDataTo for HInstruction 
BUG=

Review URL: https://codereview.chromium.org/14895019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 14:27:39 +00:00
titzer@chromium.org
68eb1e50ca Improve dead code elimination by transitively marking live code and removing all dead code. Replace unreachable phi removal algorithm with the new dead code elimination pass, which is more thorough. 
Review URL: https://codereview.chromium.org/14676011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 13:10:52 +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
svenpanne@chromium.org
c1bc396c2d Consistently assume that arithmetic operations can overflow unless one can prove the opposite. 
Previously, HDiv never had its CanOverflow flag cleared and HMod had
inverted logic (compared to HAdd, HSub and HMul). Minor cleanups on the way.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14617015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14644 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 13:48:15 +00:00
svenpanne@chromium.org
4525879eb0 Print range and type for phis, too. 
To comply with c1visualizer syntax, the format for ranges and types has changed
slightly. Furthermore, the format for phi uses has been changed a bit for more
consistency, too.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/14882006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 11:51:49 +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
svenpanne@chromium.org
f853b08ad0 Fixed constant folding in HMod. 
We have to check for overflow before attempting to do a modulo operation,
otherwise Crankshaft itself segfaults on some platforms, e.g. ia32. Added tests
even for division, where the problem doesn't show up, just to be sure...

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/14617014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-13 07:32:38 +00:00
verwaest@chromium.org
d24d961638 Clear new-space promotion if the type is smi. 
R=mvstanton@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15098002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 12:19:34 +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
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
jkummerow@chromium.org
0ac47f23d8 Remove 'unanimous use observations' rule from Phi representation inference 
Review URL: https://codereview.chromium.org/14840014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14536 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 08:50:48 +00:00
jkummerow@chromium.org
f78f583110 Detect truncating Phi uses of Phis with constant inputs 
Review URL: https://codereview.chromium.org/14260013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-02 16:30:58 +00:00
mstarzinger@chromium.org
04fdcad547 Fix HConstant::InNewSpace() for parallel compilation. 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/13977019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-30 08:00:43 +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
jkummerow@chromium.org
f80d86cbb1 Better handling of Phi nodes with constant inputs 
Review URL: https://codereview.chromium.org/14471034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 08:47:02 +00:00
jkummerow@chromium.org
628875475e Fix overflow check in mul-i which was missing since r14322 
Review URL: https://codereview.chromium.org/14471012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-25 07:36:59 +00:00
svenpanne@chromium.org
bc06a802a7 Fixed HUnaryMathOperation regarding its possible operations. 
Review URL: https://codereview.chromium.org/14333013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-24 14:51:14 +00:00
jkummerow@chromium.org
5ab6439615 Properly consider Double inputs for representation inference when they are not marked as kFlexibleRepresentation 
Review URL: https://codereview.chromium.org/14408006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-24 12:39:30 +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
jkummerow@chromium.org
0c634a1dae Ignore observed Double output in binary operations when all uses are truncating to Integer32 
BUG=v8:2424

Review URL: https://codereview.chromium.org/14320021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 16:31:16 +00:00
verwaest@chromium.org
8dd69f8dde Infer smi-range for smi-typed values. 
Review URL: https://chromiumcodereview.appspot.com/14192034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-22 08:00:28 +00:00
danno@chromium.org
bc04544f02 Replace math.h with cmath 
This will make it easier to use other STL headers in the future

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

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-19 13:26:47 +00:00
titzer@chromium.org
e210d8325f Inline isUint32() method from HConstant, which was only used in one place. 
Add utility method for checking whether an HValue is a given int32_t constant.

BUG=

Review URL: https://codereview.chromium.org/14244023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14329 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 11:22:29 +00:00
svenpanne@chromium.org
55324693aa Unify canonicalization of HAdd/HSub/HMul a bit. 
HDiv/HMul are a slightly different story and will be handled in a separate CL.

Review URL: https://codereview.chromium.org/14296013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14322 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 09:24:29 +00:00
svenpanne@chromium.org
0d8b7f7608 Improve handling of unary plus. 
Simple strategy: Transform unary plus into multiplication by one directly in the
parser and remove it from the Hydrogen graph later. This gives correct type
feedback without any special stub for it.

BUG=v8:2527

Review URL: https://codereview.chromium.org/13902013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-17 12:47:15 +00:00
yangguo@chromium.org
e1742a6716 Remove relocation lock. 
Freeze HValue hash codes that are based on object addresses.

R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14040006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 11:00:02 +00:00
mstarzinger@chromium.org
41f032f4d8 Reduce verbosity of hydrogen instructions with OSEs. 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/14091004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 07:59:13 +00:00
hpayer@chromium.org
5fd24b0afa Added non observable side effects scope and removed unnecessary calls to AddSimulate. 
BUG=

Review URL: https://codereview.chromium.org/14174002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-11 13:07:37 +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
yangguo@chromium.org
9559181b0e Fix worst-case behavior of MergeRemovableSimulates(). 
Currently, when a long series of removable simulates are merged, we do
this by merging them one by one as we find them.  As we merge the value
value lists of the simulates, those lists snowball so that we get a
quadratic complexity wrt runtime and memory consumption.

Instead, we gather simulates that need to be merged, and merge them
backwards starting from the last simulate.

R=jkummerow@chromium.org
BUG=v8:2612

Review URL: https://chromiumcodereview.appspot.com/13649003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-08 17:37:22 +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
dslomov@chromium.org
47d8af7616 Canonicalize NaNs on store to Fast(Float|Double) arrays 
Also treat holey NaN coming from external float/double arrays correctly

BUG=2596

Review URL: https://codereview.chromium.org/12918028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-28 13:30:16 +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
mmassi@chromium.org
2416d69183 Fix induction variable detection. 
Review URL: https://codereview.chromium.org/12919005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-18 17:36:24 +00:00
mmassi@chromium.org
73e83b0b0f Handling expression decomposition and array bounds check hoisting: working code with lots of debugging PrintFs, postdominance check still missing. 
Review URL: https://codereview.chromium.org/12377072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-18 08:06:00 +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
yangguo@chromium.org
a722726dc4 Parallel recompilation: fewer handle dereferences and tighter checks. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/12832002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-13 16:13:05 +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
mvstanton@chromium.org
cf373b5690 Use an efficient graph constant in CodeStubGraphBuilderBase::BuildGraph(). 
Improve printing for HReturn.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12585004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-12 15:37:23 +00:00
mvstanton@chromium.org
3d1c89d4b1 Better hydrogen printing for the allocate instruction 
R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12391057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-06 14:10:02 +00:00
svenpanne@chromium.org
61a2c53d09 Track Hydrogen statistics on a per-Isolate basis 
This is basically the same fix as the one for --trace-hydrogen, but now for
--hydrogen-stats. Removed a few train wrecks on the way.

Review URL: https://codereview.chromium.org/12481015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13835 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-06 10:49:34 +00:00
mstarzinger@chromium.org
df0e676d2f Print whether a HCheckPrototypeMaps is omitted. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/12425005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 14:11:56 +00:00
jkummerow@chromium.org
03060c7105 Fixed HCheckSmiOrInt <-> HBoundsCheck interaction wrt. representations 
BUG=v8:2556

Review URL: https://codereview.chromium.org/12321165

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13820 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 09:14:28 +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
jkummerow@chromium.org
610d78cd2c Integer HConstants don't need to kDependsOnOsrEntries 
Review URL: https://codereview.chromium.org/12299009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13751 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 11:40:25 +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
yangguo@chromium.org
a9539ff51f Fix windows build warnings. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12321047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13707 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-21 12:17:48 +00:00
yangguo@chromium.org
0d63cef35b Constant fold math and string operations. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12315005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-21 11:40:37 +00:00
jkummerow@chromium.org
e93011892e Avoid creating unnecessary branches in Hydrogen 
Review URL: https://codereview.chromium.org/12281019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-21 11:29:51 +00:00
mmassi@chromium.org
8ef28eb5ee Fixed numeric relations on HPhi instances. 
Review URL: https://codereview.chromium.org/12301027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-21 10:22:31 +00:00
mmassi@chromium.org
a5c6716cf5 Infrastructure classes for evaluating numeric relations between values. 
Review URL: https://codereview.chromium.org/12226112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-13 14:16:15 +00:00
mmassi@chromium.org
6333383ceb Remove instructions properly (stack check elimination was leaving "dangling uses" around). 
BUG=

Review URL: https://codereview.chromium.org/12224090

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-12 12:04:29 +00:00