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Author SHA1 Message Date
jkummerow@chromium.org
b789cb8c94 Crankshaft support for polymorphic array handling 
Review URL: http://codereview.chromium.org/7170012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-20 10:19:00 +00:00
jkummerow@chromium.org
2fe5afedf3 Cleanup: use JumpIf[Not]Smi() whenever we can 
Review URL: http://codereview.chromium.org/7191007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8322 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-17 18:32:36 +00:00
karlklose@chromium.org
f4e4bc43a8 Merge arguments branch to bleeding edge (second try). 
Review URL: http://codereview.chromium.org/7187007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 14:12:58 +00:00
karlklose@chromium.org
cc19d1e278 Revert "Merge arguments branch to bleeding merge." 
This reverts commit ceb31498b9d69edca3260820fb4047045891ce6d.

TBR=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/7172030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 06:37:49 +00:00
vegorov@chromium.org
14bf246dfa Add missing branches in code generated for LModI with power-of-2 divisor. 
BUG=v8:1476
TEST=test/mjsunit/regress/regress-1476.js

Review URL: http://codereview.chromium.org/7097015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-15 19:57:39 +00:00
karlklose@chromium.org
6cfeb2d400 Merge arguments branch to bleeding merge. 
Review URL: http://codereview.chromium.org/7167006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-15 15:09:28 +00:00
sgjesse@chromium.org
870ef6bdfe Remove the flag --debug-info 
This flag has not bees set to false for years, and even when building without debugging support the position information is required for stack traces.

R=ager@chromium.org

BUG=none
TEST=none

Review URL: http://codereview.chromium.org//7046078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-10 07:15:46 +00:00
kmillikin@chromium.org
9ecfdb340c Use the previous context link when checking context extension objects. 
In generated code, when walking the context to inspect context extension
objects, use the previous context link directly.

R=ager@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7044081

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 17:44:50 +00:00
danno@chromium.org
9f432cd159 Dispatch on ElementsKind rather than ExternalArrayType when generating ICs and Crankshaft code for many element operations. This is preparation to be able to share more code in the various element accessor implementations. 
Merge logic to maintain external array and fast element stub caches.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7112010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 15:19:37 +00:00
whesse@chromium.org
c40aa827bf Add boolean flag to HChange and LNumberUntagD to not convert undefined to NaN. 
This is needed so that HCompare, optimized for double inputs, works correctly on undefined inputs.
BUG=v8:1434
TEST=mjsunit/bugs/bug-1434.js

Review URL: http://codereview.chromium.org/7044049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8237 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 12:27:28 +00:00
kmillikin@chromium.org
371af773cf A collection of context-related refactoring changes. 
Introduce separate maps for function and with contexts.  Use the function
context map for testing whether a context is a function context (global
contexts are no longer function contexts).

Split the paths for allocating with and catch contexts.

Rename some functions.  Generally refactor code to make it simpler.

R=ager@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7003058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8231 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 11:26:01 +00:00
fschneider@chromium.org
2dc734c108 Cleanup unused lithium instructions. 
Instructions that have side effects can never have EmitAtUses() true.
These instructions (CmpTAndBranch, InstanceOfAndBranch) are therefore
never generated and can therefor be safely removed.
Review URL: http://codereview.chromium.org/7031074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8220 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-08 10:51:51 +00:00
rossberg@chromium.org
670f947a5c Implement set trap for proxies, and revamp class hierarchy in preparation: 
- Introduce a class JSReceiver, that is a common superclass of JSObject and
  JSProxy. Use JSReceiver where appropriate (probably lots of places that we
  still have to migrate, but we will find those later with proxy test suite).

- Move appropriate methods to JSReceiver class (SetProperty,
  GetPropertyAttribute, Get/SetPrototype, Lookup, and so on).

- Introduce new JSFunctionProxy subclass of JSProxy. Currently only a stub.

- Overhaul enum InstanceType:
  * Introduce FIRST/LAST_SPEC_OBJECT_TYPE that ranges over all types that
    represent JS objects, and use that consistently to check language types.
  * Rename FIRST/LAST_JS_OBJECT_TYPE and FIRST/LAST_FUNCTION_CLASS_TYPE
    to FIRST/LAST_[NON]CALLABLE_SPEC_OBJECT_TYPE for clarity.
  * Eliminate the overlap over JS_REGEXP_TYPE.
  * Also replace FIRST_JS_OBJECT with FIRST_JS_RECEIVER, but only use it where
    we exclusively talk about the internal representation type.
  * Insert JS_PROXY and JS_FUNCTION_PROXY in the appropriate places.

- Fix all checks concerning classification, especially for functions, to
  use the CALLABLE_SPEC_OBJECT range (that includes funciton proxies).

- Handle proxies in SetProperty (that was the easiest part :) ).

- A few simple test cases.

R=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/6992072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-31 16:38:40 +00:00
erik.corry@gmail.com
7a1a72c701 Revert 8122 (stub call asserts) while test failures are investigated. 
Review URL: http://codereview.chromium.org/7050039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-31 15:21:25 +00:00
erik.corry@gmail.com
c5fc4b9099 Add asserts and state tracking to ensure that we do not call 
into C++ without having a valid stack frame that can be
traversed at GC.
Also add asserts to track that we do not try to generate a stub
while we are generating a stub, since the stub creation code is
not GC safe.
Review URL: http://codereview.chromium.org/7084032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-31 12:38:45 +00:00
kmillikin@chromium.org
00f2ff321e Support optimization of named function literals. 
Introduce a Hydrogen value for the value denoted by the function name.

R=fschneider@chromium.org,mnaganov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7083024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-31 11:54:46 +00:00
ager@chromium.org
544191e718 Update apply with arguments optimization for strict mode functions and builtins. 
Do not convert to object for values for strict-mode functions and
builtins.

R=ricow@chromium.org
BUG=v8:1412
TEST=mjsunit/regress/regress-1412.js

Review URL: http://codereview.chromium.org/7096006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-31 10:38:41 +00:00
ager@chromium.org
017935408d Reapply change to Pass undefined to JS builtins when called with 
implicit receiver.

A couple of corner cases have to be treated specially to not break
everything: eval and getter/setter definitions.

R=fschneider@chromium.org
BUG=v8:1365
TEST=mjsunit/regress/regress-1365.js

Review URL: http://codereview.chromium.org/7085034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8110 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-30 13:49:22 +00:00
ager@chromium.org
cc4a2d7e76 Fix a number of IC stubs to correctly set the call kind. 
Make the call kind and call wrapper arguments explicit to force
developers to make a choice. This would have avoided the bug in the
first case.

R=fschneider@chromium.org
TEST=mjsunit/strict-mode-implicit-receiver.js

Review URL: http://codereview.chromium.org/7086029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-30 13:23:17 +00:00
ager@chromium.org
c832c467a4 Revert "Pass undefined to JS builtins when called with implicit receiver." 
Presubmit and failing test.

TBR=lrn@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7071009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-26 11:22:29 +00:00
ager@chromium.org
19b718fe73 Pass undefined to JS builtins when called with implicit receiver. 
A couple of corner cases have to be treated specially to not break
everything: eval and getter/setter definitions.

R=lrn@chromium.org
BUG=v8:1365
TEST=mjsunit/regress/regress-1365.js

Review URL: http://codereview.chromium.org/7068009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8073 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-26 11:07:48 +00:00
lrn@chromium.org
02c4e8bfcb Make RegExp objects not callable. 
Review URL: http://codereview.chromium.org/6930006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8068 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-26 07:35:09 +00:00
ager@chromium.org
6f775f2fb0 Fix calls of strict mode function with an implicit receiver. 
Only IA32 version for now. I'll start porting.

Strict mode functions are to get 'undefined' as the receiver when
called with an implicit receiver. Modes are bad! It forces us to have
checks on all function calls.

This change attempts to limit the cost by passing information about
whether or not a call is with an implicit or explicit receiver in ecx
as part of the calling convention. The cost is setting ecx on all
calls and checking ecx on entry to strict mode functions.

Implicit/explicit receiver state has to be maintained by ICs. Various
stubs have to not clobber ecx or save and restore it.

CallFunction stub needs to check if the receiver is implicit when it
doesn't know from the context.

Review URL: http://codereview.chromium.org/7039036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8040 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-24 14:01:36 +00:00
fschneider@chromium.org
5552dbccdd Rename TypeRecording...Stub into ...Stub. 
There is no need for this long name.
Review URL: http://codereview.chromium.org/7063017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8031 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-24 12:20:16 +00:00
danno@chromium.org
7185ec6ca8 Remaining (forgotten) feedback for pixel array deopt fix 
TBR=kmillikin@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7019008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-17 07:22:01 +00:00
danno@chromium.org
daa1be1226 Support conversion of clamped double values for pixel arrays in Crankshaft. 
BUG=1313
TEST=test/mjsunit/external-array.js

Review URL: http://codereview.chromium.org/7014033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-16 14:10:56 +00:00
fschneider@chromium.org
48077e89e9 Remove support for branch hints from the IA32 and X64 assembler. 
They were not on by default and should not be needed on modern
platforms.
Review URL: http://codereview.chromium.org/7001025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 13:26:07 +00:00
vitalyr@chromium.org
03c00ee6a6 Support symbol comparison in crankshaft. 
Review URL: http://codereview.chromium.org/7000021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 12:50:04 +00:00
vitalyr@chromium.org
4cc800b3cf Support %_IsUndetectableObject in crankshaft. 
Review URL: http://codereview.chromium.org/6995046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 11:53:43 +00:00
jkummerow@chromium.org
944a388412 Avoid using a register for constant external array indices. 
This CL is based on and obsoletes CL 6879037.

TEST=mjsunit/external-array.js

Review URL: http://codereview.chromium.org/6902112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7844 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-10 15:25:17 +00:00
vitalyr@chromium.org
c10267f1fa Refactor HCheckInstanceType to allow mask/tag tests. 
This allows us to get rid of totally fake LAST_STRING_TYPE and makes
it possible to test for symbols.

I considered splitting HCheckInstanceType into two instructions, but
it seems nice to be able to hide the instance type implementation
details from the hydrogen level.

Review URL: http://codereview.chromium.org/6964011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-10 14:17:23 +00:00
jkummerow@chromium.org
95ff85112f Merge Label and NearLabel 
by adding NearLabel's functionality to Label and introducing a "near" parameter to jump instructions.

TEST=compiles; existing tests still pass.

Review URL: http://codereview.chromium.org/6928060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-10 09:03:42 +00:00
fschneider@chromium.org
45d07bcd32 Simple elimination of redundant array-hole checks. 
If the result of an fast elements load is converted to an untagged
representation we can omit the hole check if the value is not used
anywhere else except for HChange instructions converting it to
an untagged representation since those will deoptimize for the hole
value anyway.
Review URL: http://codereview.chromium.org/6964012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-09 15:21:40 +00:00
ager@chromium.org
0af052870f Support polymorphic loads of constant functions as well as fields. 
R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6930005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-05 09:22:09 +00:00
svenpanne@chromium.org
1b833ff35e Additional minor cleanup regarding CallWrapper: Use the null object pattern. 
Review URL: http://codereview.chromium.org/6909026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7767 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-03 15:12:40 +00:00
ager@chromium.org
eda2a0d4d2 Cleanup: use xorps to zero out an xmm register on ia32 too. 
Encoding is one byte shorter.

R=lrn@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6910021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-03 12:00:54 +00:00
svenpanne@chromium.org
5197bff4f2 Unified CallWrapper and PostCallGenerator classes, the former is a 
generalization of the latter. This makes CallWrapper architecture-independant,
so it can be pulled up into assembler.h, nuking 3 copy-n-paste classes. Only a
small improvement, but nevertheless...
Review URL: http://codereview.chromium.org/6893156

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-03 09:30:06 +00:00
sgjesse@chromium.org
37f33a7087 Improve modulo operation in lithium on IA32. 
Implement fast paths for the special cases like PowerOfTwo divisors
and the dividend being smaller than the divisor (non-negative).

BUG=v8:1314

Review URL: http://codereview.chromium.org//6816049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-28 14:58:45 +00:00
fschneider@chromium.org
cbe2652682 Refactor lithium classes to reduce the number of virtual functions. 
This reduces the binary size by making the Is* type-test functions non-virtual.

I had to change Gap and Label instructions to have a common abstract superclass because both act as gap-instructions for the register allocator.
Review URL: http://codereview.chromium.org/6880204

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-27 11:41:42 +00:00
vegorov@chromium.org
b62bdda7d1 Crankshaft support for IN. 
In JavaScriptFrame::Print avoid printing optimized frame as if it is unoptimized.

Review URL: http://codereview.chromium.org/6894043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-26 15:22:44 +00:00
jkummerow@chromium.org
bc8f6943bb Support Float64Arrays 
BUG=None
TEST=mjsunit/external-arrays.js; updated cctest; existing unit tests

Review URL: http://codereview.chromium.org/6879009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-21 07:15:43 +00:00
fschneider@chromium.org
a4283a5440 Revert r7665. 
Review URL: http://codereview.chromium.org/6873106

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7670 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-20 09:08:26 +00:00
fschneider@chromium.org
6197c1566a Lithium LLabel instruction are no longer used as gap instructions. 
Instead we use the first part of the first gap after
the label to insert gap-moves for resolving control-flow
and phis.
Review URL: http://codereview.chromium.org/6873075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-19 16:14:42 +00:00
fschneider@chromium.org
ef24af119e Land Kevin's patch for supporting %_CallFunction in Crankshaft. 
Original code review: http://codereview.chromium.org/6838018/

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/6869005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-15 07:58:22 +00:00
vitalyr@chromium.org
cc782be64e Support string add in crankshaft: 
o The type recording binary stub got a new type for string + string.

o Added HStringAdd and LStringAdd based on the new type info.

o Started using HValue types to avoid unneccesary checks.

Review URL: http://codereview.chromium.org/6852015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-15 06:39:36 +00:00
whesse@chromium.org
5a6ec1a46e Fix optimized code for Math.round on ia32 platform. 
Review URL: http://codereview.chromium.org/6838012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7600 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-13 10:32:05 +00:00
mmaly@chromium.org
164e3a4173 Strict mode fixes. 
- mutual inlining strict and non-strict functions in crankshaft.
- assignment to undefined variable with eval in scope.
- propagation of strict mode through lazy compilation.

BUG=
TEST=test/mjsunit/strict-mode.js test/mjsunit/strict-mode-opt.js

Review URL: http://codereview.chromium.org/6814012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7561 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-08 14:30:10 +00:00
vegorov@chromium.org
8a8d3bbbee In LCodeGen::DoDeferredLInstanceOfKnownGlobal emit safepoint with registers for the call to stub. 
Review URL: http://codereview.chromium.org/6793017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-07 13:32:45 +00:00
mmaly@chromium.org
76b5dc7bfb Strict mode renamings. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/6804024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7522 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-06 20:20:31 +00:00
ricow@chromium.org
3dd575ec0d Add inline non-transcendental cache version of log to lithium. 
In addition, this change allows one additional level of inlining. 
Review URL: http://codereview.chromium.org/6720017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-05 09:21:02 +00:00
sgjesse@chromium.org
1244225ba8 Extend crankshaft support for global stores 
All global stores are now supported in crankshaft by using the normal store IC when other optimizations are not possible due to the state of the global object.

R=fschneider@chromium.org

BUG=
TEST=

Review URL: http://codereview.chromium.org//6693066

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7495 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-04 15:03:34 +00:00
sgjesse@chromium.org
1e8079fcc9 Increase coverage of global loads in optimized code 
In the cases where a global property cell cannot be used in the optimized code
use standard load ic to get the property instead of bailing out.

This is re-committing r7212 and r7215 which where reverted in r7239 with the addition of recoring the source position in the hydrogen code for the LoadGlobalCell instruction. To record that position an optional position field has been added to the variable proxy AST node.
Review URL: http://codereview.chromium.org/6758007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-01 11:54:04 +00:00
danno@chromium.org
5f2b7a0f79 Fix minor issues in typed array load/store implementation 
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6675043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-01 08:03:34 +00:00
vitalyr@chromium.org
179aef2b8f VM initialization refactoring. 
This patch introduces global once per-process initialization and moves
the OS and CPU setup there. This makes CPU features isolate-independent.

Review URL: http://codereview.chromium.org/6670119

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-31 16:17:37 +00:00
ricow@chromium.org
7293b325f6 Remove unused method, this is not used anymore after 7360. 
Review URL: http://codereview.chromium.org/6735012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-28 13:34:10 +00:00
ager@chromium.org
cdf65ca087 Reimplement the padding of relocation information for lazy deoptimization on ia32. 
The previous implementation attempted to keep track of the needed
relocation size for deoptimization while generating the optimized
code. That was error prone. This patch moves the relocation resizing
to the deoptimizer as the last step of creating an optimized code
object.

The down side to this approach is that two relocation information byte
arrays are created for all optimized functions that do not have enough
relocation space for lazy deoptimization.

R=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/6730050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-25 10:29:34 +00:00
danno@chromium.org
ea45f6719e Support external arrays in Crankshaft 
Add specialized hydrogen and lithium instructions to support loading and storing to external arrays.

Review URL: http://codereview.chromium.org/6656001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7354 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-24 22:14:15 +00:00
fschneider@chromium.org
7d8e6c929d Enable GVN for polymorphic loads by not expanding them at the HIR level. 
This change adds a new IR instruction for polymorphic loads. It performs
map compares and loads in one IR instruction instead of splitting each
load into a graph of map-compares and field loads.
 
The advantage is a smaller IR and less basic blocks, plus it allows to
do GVN on polymorphic loads.
Review URL: http://codereview.chromium.org/6708085

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7336 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-24 10:11:51 +00:00
ager@chromium.org
363ef7f750 Ensure enough space for lazy deoptimization relocation information. 
Was not done for runtime calls and for recursive calls.

Only ia32 for now. We need to refactor x64 and look into arm as well.

R=sgjesse@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6728001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-23 15:33:49 +00:00
ager@chromium.org
1bdc8031fa Introduce accessors on builtins instance and use them to avoid TLS access when getting builtins. 
R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6717018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-23 13:40:07 +00:00
ager@chromium.org
b69591bc0f Require an isolate parameter for most external reference creation to 
avoid TLS access in connection with external references.

Make the isolate accessible via the assembler.

Only for ia32 at this point. If this looks OK to you I will port it.

R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6713074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7305 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-22 13:20:04 +00:00
fschneider@chromium.org
8066271fd2 Optimize calls to object literal properties that are initialized with a function literal. 
This allows fast calls and inlining of functions like:

var o = {f: function() { return "foo"; }}
o.f();


Object literals that contain function literals are initially created a dictionary mode
object and only transformed to fast properties once all properties are computed and
added. This allows us to create constant function properties for functions declared
inside the object literal. Function literals inside object literals are marked for
pretenuring so that they work as contant function properties.

Object literals without functions should just function as before.

Review URL: http://codereview.chromium.org/6240012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7283 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-21 12:25:31 +00:00
vitalyr@chromium.org
7976ca2cbc Merge isolates to bleeding_edge. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 20:35:07 +00:00
vitalyr@chromium.org
76e226f832 Revert r7268: it borked the history. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 19:41:05 +00:00
vitalyr@chromium.org
6ff7fdebd3 Merge isolates to bleeding_edge. 
Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 18:49:56 +00:00
mmaly@chromium.org
55906eb46e Implement fast path for strict closure creation. 
Review URL: http://codereview.chromium.org/6677036/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 20:28:30 +00:00
mmaly@chromium.org
1d1018aec7 Strict mode ThrowTypeError functions for 
- function.caller
- function.arguments

Review URL: http://codereview.chromium.org/6694044/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7250 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 20:28:17 +00:00
vitalyr@chromium.org
02a4ce8cb0 Emit slightly more compact code in untag double. 
Review URL: http://codereview.chromium.org/6677111

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7243 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 15:46:42 +00:00
ricow@chromium.org
d6caa8872a Revert revisions 7215 and 7212. 
This caueses line positions to be off by one in certain cases, causing webkit http/tests/inspector/console-xhr-logging to fail.
Review URL: http://codereview.chromium.org/6667077

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7239 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 14:30:48 +00:00
lrn@chromium.org
2038178fbe Add support for unary plus in hydrogen compiler. 
Also strength-reduction of unary minus.
Fixes issue 1248.

BUG=1248

Review URL: http://codereview.chromium.org/6685045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 10:37:29 +00:00
sgjesse@chromium.org
1a6c821b05 Increase coverage of global loads in optimized code 
In the cases where a global property cell cannot be used in the optimized code use standard load ic to get the property instead of bailing out.
Review URL: http://codereview.chromium.org/6665026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7212 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 08:16:12 +00:00
fschneider@chromium.org
a20ee85139 Refactor lithium CheckSmi instruction into two separate instructions CheckSmi and CheckNonSmi. 
There is no need to store the branch condition separately in the LIR.

Review URL: http://codereview.chromium.org/6673082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-16 16:28:06 +00:00
ager@chromium.org
6428822811 Revert "Strict mode ThrowTypeError functions for" 
TBR=mmaly@chromium.org

Review URL: http://codereview.chromium.org/6696018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-15 11:01:21 +00:00
mmaly@chromium.org
80bd958df2 Strict mode ThrowTypeError functions for 
- function.caller
- function.arguments

Review URL: http://codereview.chromium.org/6691003/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-14 17:46:37 +00:00
vitalyr@chromium.org
8700f796e4 Remove unused StringCharCodeAt stub. 
Review URL: http://codereview.chromium.org/6690014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-14 16:54:51 +00:00
vitalyr@chromium.org
269b19b447 Crankshaft support for StringCharFromCode. 
This allows more efficient implementations of string keyed access,
String.prototype.chatAt, and String.fromCharCode.

Review URL: http://codereview.chromium.org/6682025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-14 15:36:00 +00:00
vegorov@chromium.org
9b311c21b1 Reduce strength of ModI for power-of-2 divisor. 
This is ia32 only. I will port it to other platforms if this looks good to you.

Review URL: http://codereview.chromium.org/6665006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-14 14:42:14 +00:00
danno@chromium.org
9cca7d2733 Combine typed and pixel arrays. 
Worth mentioning:
- Specialized versions of pixel array and store/loads inside the generic stubs have been removed, since to have parity for all external arrays, 8 different versions would have to be inlined/checked.
- There's a new constant in v8.h for external arrays with pixel array elements.

Review URL: http://codereview.chromium.org/6546036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-09 15:01:16 +00:00
karlklose@chromium.org
822ddaa7d1 ARM: Implement MathPowStub and DoMathPowHalf. 
Review URL: http://codereview.chromium.org/6613015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7086 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-08 10:29:40 +00:00
kmillikin@chromium.org
c3172a6b7e Refactor polymorphic load and inline function graph construction. 
Change the way we construct the graph for polymorphic loads to match that of
polymorphic stores.

Introduce a stack-allocated helper for saving and restoring all the
function-specific graph builder state that needs to change when we begin
translating an inlined function.  Make this class authoritative by moving
redundant state out of the builder and deferring to the current function's
state.

Ensure that we always print a tracing message when abandoning an inlining
attempt.

Review URL: http://codereview.chromium.org/6628012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-07 11:52:36 +00:00
ricow@chromium.org
e772d9ea45 Remove unused label from lithium-codegen-ia32 
Review URL: http://codereview.chromium.org/6615007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7056 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-04 09:07:31 +00:00
whesse@chromium.org
8ff9165055 Simplify test for typeof x == 'y' on all platforms. 
Review URL: http://codereview.chromium.org/6606005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-03 12:16:21 +00:00
sgjesse@chromium.org
98d82ea9de Add lithium support for %_GetCachedArrayIndex for IA32 and X64 
BUG=v8:1093
Review URL: http://codereview.chromium.org/6611014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-03 09:33:08 +00:00
whesse@chromium.org
9d89ec5c00 Add ArithmeticD(MOD) to x64 optimizing code generator. Minor changes to ArithmeticD on other platforms. 
Review URL: http://codereview.chromium.org/6594118

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-02 15:04:20 +00:00
mmaly@chromium.org
1d040083b0 Assignment to read only properties throws in strict mode. 
Review URL: http://codereview.chromium.org/6594037/

Revert "Revert "Assignment to read only properties throws in strict mode.""

This reverts commit aefcd82e1d36d458dd071ebf4777340f08aa67b1.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-02 04:53:43 +00:00
fschneider@chromium.org
8a72161585 Add lazy deoptimization environment to instanceof by marking it as a call. 
This fixes an assert when an exception is thrown inside instanceof.

BUG=v8:1207
TEST=mjsunit/regress/regress-1207.js

Review URL: http://codereview.chromium.org/6588083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-01 15:37:24 +00:00
vegorov@chromium.org
97aecae1cb Fix several evaluation order sensitive GC-unsafe places. 
Review URL: http://codereview.chromium.org/6596070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6991 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-01 13:16:57 +00:00
mmaly@chromium.org
749b69853a Revert "Assignment to read only properties throws in strict mode." 
This reverts commit 503f2a501e504f330821f247074e731aa649b1f0.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-01 06:10:41 +00:00
mmaly@chromium.org
98aea3c353 Assignment to read only properties throws in strict mode. 
Review URL: http://codereview.chromium.org/6594037/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-01 01:42:37 +00:00
ricow@chromium.org
cfd6268256 Fix wrong assertion in assembler causing the shell to crash with --code-comments. 
Since writting a code comment can include a pc-jump the assertion
should just check that we are greater than or equal to
kMinRelocCommentSize (renamed from kRelocCommentSize), not that we are
actually equal to.


Review URL: http://codereview.chromium.org/6580028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-24 10:29:01 +00:00
rossberg@chromium.org
3af35dc96f Optimize functions needing a local context. 
Allocate the context in the prologue. Two issues had to be solved:
(1) deoptimization needs to handle functions with a local context,
(2) we need a safepoint in the prologue.
(Thanks to Kevin.)

Review URL: http://codereview.chromium.org/6534022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-22 16:56:57 +00:00
ricow@chromium.org
45c63ffa6a Add more generic version of reloc info padding to ensure enough space for reloc patching during deoptimization (fixes issue 1174). 
The old version only added extra space when we did indirect calls, but
the problem remains the same with normal calls that can be represented
as a single byte. When doing patching each call will always be at
least 2 bytes long because we use RUNTIME_ENTY as the reloc mode.


Review URL: http://codereview.chromium.org/6541053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-22 12:28:33 +00:00
ager@chromium.org
ea0dda89bb Unifying the handling of storing and loading from safepoint stack 
slots across architectures.

Review URL: http://codereview.chromium.org/6541051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-21 11:29:45 +00:00
whesse@chromium.org
4ac9f20601 X64 Crankshaft: Implement MathRound, MathFloor, MathSqrt, and MathPowHalf UnaryMathOperations in optimizing code generator. Remove unneeded bailout on Math.pow(-0, 0.5) from ia32 and x64 platforms - we produce the correct value without bailing out. 
Review URL: http://codereview.chromium.org/6532054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-18 14:34:17 +00:00
ager@chromium.org
c52e397db6 Fix presubmit. 
TBR=lrn@chromium.org

Review URL: http://codereview.chromium.org/6532055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-18 14:10:42 +00:00
ager@chromium.org
b8f0b88b54 x64: Implement regexp literals and string CharCodeAt in lithium backend. 
Review URL: http://codereview.chromium.org/6469052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6853 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-18 14:00:46 +00:00
danno@chromium.org
12b4e0efe7 Implement crankshaft support for pixel array stores. 
Review URL: http://codereview.chromium.org/6528013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-16 13:31:12 +00:00
ricow@chromium.org
a8d4360d65 Make sure we always have room for patching the reloc info during lazy deoptimization (fixes issue 1156). 
Before we could have calls to builtins that would not be in the
relocation info since this used a register as target. Whenever we have
this case (from lithium codegen) we now emit a comment in the reloc
info.

Review URL: http://codereview.chromium.org/6499015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-15 14:36:12 +00:00
mmaly@chromium.org
9adaeb6a17 Strict mode delete of non-configurable property. 
Strict mode flag is passed to runtime DELETE function
and then to JSObject::Delete(Property/Element) as STRICT_DELETION enum.
When deleting non-configurable property/eleemnt, TypeError is thrown.
Adding mozilla test to .gitignore.
Incorporate CR feedback.

Review URL: http://codereview.chromium.org/6515005/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-14 23:41:47 +00:00
whesse@chromium.org
7233a930b5 X64 Crankshaft: Add test that fails on x64 Crankshaft build to list of skipped mjsunit tests. Fix comments and remove unused function from date.js. 
BUG=1153
TEST=mjsunit/date-parse
Review URL: http://codereview.chromium.org/6516011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-14 13:57:15 +00:00