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Author SHA1 Message Date
sgjesse@chromium.org
a6973777bb Reverting 2768. 
Review URL: http://codereview.chromium.org/173561

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-27 07:41:31 +00:00
sgjesse@chromium.org
1c46ee8c10 Add allocation support to ia32 macro assembler. 
Factored out the allocation in new space from assembler code into the macro assembler. To support the current allocation patterns a number of different functions where required.
Review URL: http://codereview.chromium.org/174524

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2768 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-27 07:24:03 +00:00
sgjesse@chromium.org
717394492d Generate specialized constructor code for constructing simple objects. 
For objects which only have simple assignments of the form this.x = ...; a
specialized constructor stub is now generated. This generated code allocates the
object and fills in the initial properties directly. If this fails for some
reason code continues in the generic constructor stub which in turn might pass
control to the runtime system.

Added counter to see how many objects are constructed using a specialized stub.

The specialized stub is only implemented for ia32 architecture in this change.
For x64 and ARM the generic construct stub is used.

This is change is identical to http://codereview.chromium.org/174392 (committed in r2753 and reverted in r2754) except that a few parts have already been committed from http://codereview.chromium.org/173469 (committed in r2762).
Review URL: http://codereview.chromium.org/173470

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-26 12:22:44 +00:00
sgjesse@chromium.org
3fdbc0848c Reverting 2753. 
Review URL: http://codereview.chromium.org/173349

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-25 15:00:07 +00:00
sgjesse@chromium.org
53531ed48a Generate specialized constructor code for constructing simple objects. 
For objects which only have simple assignments of the form this.x = ...; a specialized constructor stub is now generated. This generated code allocates the object and fills in the initial properties directly. If this fails for some reason code continues in the generic constructor stub which in turn might pass control to the runtime system.

Added counter to see how many objects are constructed using a specialized stub.

The specialized stub is only implemented for ia32 architecture in this change. For x64 and ARM the generic construct stub is used.
Review URL: http://codereview.chromium.org/174392

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-25 12:23:58 +00:00
ager@chromium.org
0efbd40baf Add support for forceful termination of JavaScript execution. 
The termination is achieved by throwing an exception that is uncatchable by JavaScript exception handlers.
Review URL: http://codereview.chromium.org/174056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-19 15:14:11 +00:00
lrn@chromium.org
fdf31f7f5e X64: Implement debugger hooks. 
Debugger is now fully functional.
Fix difference in emitting statement positions to match ia32.

Review URL: http://codereview.chromium.org/171107


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2716 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-19 10:18:30 +00:00
sgjesse@chromium.org
4e03645dc4 Analyze functions for assignment to this properties. 
During parsing functions are analyzed for statements of the form this.x = ...;. These assignments are categorized in two types: simple and non simple. The simple ones are where the right hand side is known to be either a constant or an argument to the function. If a function only contains statements of this type the property names are collected and for the simple assignments the index of the argument or the constant value assigned are stored as well.

When the initial map for a function is created and the function consists of only this type of assignemnts the initial map is created with a descriptor array describing these properties which will be known to always exist in an object created from the function.

The information on this property assignments is not collected during pre-parsing so if compiling using pre-parse data these optimization hints are not available.

Next step will be to use the information collected for the simple assignments to generate constructor code which will create and initialize the object from this information without calling the code for the function.
Review URL: http://codereview.chromium.org/172088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-19 07:30:20 +00:00
feng@chromium.org
03a39152b9 Fix IA32 build when not using native regexp compiler. 
Review URL: http://codereview.chromium.org/173003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-18 17:26:51 +00:00
whesse@chromium.org
5b8d422524 Remove one of the GCs performed by the --gc-greedy flag. The GC performed by CEntryStub before the first call to C, when --gc-greedy is set, caused a bug in calling API callbacks. 
Review URL: http://codereview.chromium.org/171104

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2706 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-18 10:52:14 +00:00
ager@chromium.org
1656dd639a Fix regression caused by the generation of a shift stub during 
snapshot creation in a better way.

Encode whether or not the stub should use sse3 instructions in the
minor key of the stub.  The stubs generated during snapshot creation
will have sse3 disabled, but they will not be found when sse3 is
enabled.  Therefore they will only affect the code generated as part
of the snapshot.
Review URL: http://codereview.chromium.org/172086

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-18 09:47:45 +00:00
lrn@chromium.org
4254388c14 X64: Implement RegExp natively. 
Review URL: http://codereview.chromium.org/165443


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-14 11:24:32 +00:00
sgjesse@chromium.org
7b05678316 Refactor SetFunctionInfo to reduce long argument list. 
Review URL: http://codereview.chromium.org/165527

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-14 11:05:42 +00:00
ager@chromium.org
f39651cbcd Land change to notify valgrind when we modify code on x86. This does 
not seem to impact performance and makes it a lot easier for people
embedding V8 to run their application under valgrind.

If we observe a negative performance impact, we will need to revise
this again.

Review URL: http://codereview.chromium.org/13612.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-11 15:23:06 +00:00
kmillikin@chromium.org
2bdd9d7c2e "Port" (count >= 0) assertion in VirtualFrame::Drop to ia32 and x64. 
Review URL: http://codereview.chromium.org/164251

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-10 11:54:25 +00:00
kmillikin@chromium.org
a53c70c788 Eliminate most of the jump target jumping, branching, and binding 
overhead on the ARM platform.

Because virtual frames are always in memory, there is no work to be
done for control flow except in the case of breaking or continuing
when there is extra statement state on the stack.

Review URL: http://codereview.chromium.org/165230

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-10 11:13:34 +00:00
kmillikin@chromium.org
e8f54a6073 Added support for property loads to the CFG builder and fast-mode 
compiler.

Review URL: http://codereview.chromium.org/165129

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2653 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-07 13:32:39 +00:00
whesse@chromium.org
e73bfe98a4 Implement inline constructors for X64. Fix ia32 inline constructors a little. Fix a bug of a non-constant length between a call and its fixup. 
Review URL: http://codereview.chromium.org/164144

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-07 12:52:32 +00:00
kmillikin@chromium.org
216eaff31a Factor out some platform-independent code into the shared cfg.cc. 
Review URL: http://codereview.chromium.org/165127

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-07 10:55:19 +00:00
kmillikin@chromium.org
9edc69c72f Add support for (some) assignment expressions to the CFG builder and 
fast-mode compiler.

1. We avoid generating a useless temporary for assignments with
nontrivial right-hand sides.  Instead of translating id = expr into:

...
tmp = <last expr instruction>
id = tmp

we generate directly

...
id = <last expr instruction>

by passing a data destination ('hint') down the AST.  The semantics is
to use the destination as a result location if a temp is needed.  It
may be ignored.  NULL indicates I don't care and you should generate a
temp.

2. We correctly handle assignments as subexpressions.  When building
the CFG for an expression we accumulate the assigned variables and we
emit a move to a fresh temporary if a value in a variable is in
jeopardy of being overwritten.

Review URL: http://codereview.chromium.org/165056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-07 07:15:31 +00:00
whesse@chromium.org
863582bad4 Make sure use of eax in inlined sin and cos is safe. 
Review URL: http://codereview.chromium.org/164061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-06 14:42:38 +00:00
kmillikin@chromium.org
cde1262754 M regexp-macro-assembler-ia32.cc 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-06 13:57:34 +00:00
lrn@chromium.org
5ae761cc15 Irregexp-ia32 internal call strategy changed. 
Review URL: http://codereview.chromium.org/164053


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-06 12:51:04 +00:00
kmillikin@chromium.org
6a19a8f5fd Fix the debugger in multipass mode by introducing phantom instructions 
marking statement boundaries.

Review URL: http://codereview.chromium.org/162007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-06 11:14:48 +00:00
kmillikin@chromium.org
23fbd8fe3f Add support to the CFG builder for non-short-circuited binary 
expressions.  Add compilation support in fast mode (optimized for
compilation time and code size).

This breaks one debugger test each on ARM and IA32 (expectedly).
Review URL: http://codereview.chromium.org/160584

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2628 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-05 12:52:31 +00:00
lrn@chromium.org
30fa78f1f7 Fix bug in X64 RSet code. Optimize IA32 version. 
Review URL: http://codereview.chromium.org/162001


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-05 11:08:24 +00:00
lrn@chromium.org
0e11fbcd79 Removed unsafe optimization in RecordWrite. 
Optimization was only unsafe if new-space was in the low half of memory and an object could be
located in the top half at an addressed that only differ from a new-space address by the high
bit.

Review URL: http://codereview.chromium.org/159784


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2608 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-03 13:17:34 +00:00
kmillikin@chromium.org
67a61e96c7 Restructure to support recursive invocation of the CFG builder. Add 
support for stack-allocated variables when run with multipass.

There is no liveness analysis and they are currently always allocated
to memory.

Review URL: http://codereview.chromium.org/159701

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2604 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-08-03 07:55:48 +00:00
kmillikin@chromium.org
b092d55890 Enable --trace when --multipass is on. Bugfix in bailout condition. 
All V8 and (ia32) mozilla tests pass with --multipass on, failures now
count as regressions.

Review URL: http://codereview.chromium.org/159698

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-31 11:27:14 +00:00
mikhail.naganov@gmail.com
33f54fa6e2 X64: enable stack sampling in profiler. 
Added necessary code to initialize Top::js_entry_sp value.
Renamed 'test-log-ia32' test to 'test-log-stack-tracer' and enabled it in 64-bit version.

Review URL: http://codereview.chromium.org/160446


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-31 11:07:05 +00:00
kmillikin@chromium.org
3a472fada8 Basic infrastructure for fast two-pass compilation. A CFG is 
generated in one-pass from the source AST, code is generated from the
CFG.  Enabled by the flag --multipass and disabled by default.

Rudimentary and currently only supports literal expressions and return
statements.  There are some other known limitations (e.g., missing
support for tracing).

Review URL: http://codereview.chromium.org/159695

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-31 11:06:17 +00:00
kmillikin@chromium.org
1a39e07003 Another name change for consistency's sake. NODE_LIST -> AST_NODE_LIST. 
Review URL: http://codereview.chromium.org/159633

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2587 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-30 12:09:05 +00:00
kmillikin@chromium.org
a48fd5916e Change the overly-general class named Node to the more specific 
AstNode in case we ever want to have some other kind of node.

Split the NODE_LIST macro-generating macro so that we can iterate
concrete subclasses of Statement and concrete subclasses of Expression
separately.
Review URL: http://codereview.chromium.org/159632

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2586 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-30 11:53:29 +00:00
lrn@chromium.org
dc8ca16931 X64: Added inline keyed load/store and a bunch of other missing functions. 
Review URL: http://codereview.chromium.org/160272


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-30 09:18:14 +00:00
antonm@chromium.org
0d2c81584b Compile precanned answers for the case of failed interceptor for some combinations. 
Review URL: http://codereview.chromium.org/140069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-29 12:34:21 +00:00
antonm@chromium.org
4354661a49 Get rid of unnecessary handle management when invoking interceptors. 
Review URL: http://codereview.chromium.org/155682

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2562 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-28 14:46:06 +00:00
kasperl@chromium.org
516d47c73b Fix pixel array support for x64 and make the fast Array functions 
that use JSARRAY_HAS_FAST_ELEMENTS_CHECK a bit safer in the presence
of pixel arrays.
Review URL: http://codereview.chromium.org/159500

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2556 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-28 12:46:08 +00:00
sgjesse@chromium.org
422b02717e Change the updating of the counters for global stub use to be consistent. Now counters are updated when they are sure to count to avoid decrementing them when there is a miss. 
Review URL: http://codereview.chromium.org/160265

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2554 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-28 11:42:18 +00:00
kasperl@chromium.org
b2fc0598c1 Fix lint issues. TBR=iposva@chromium.org 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-28 09:05:05 +00:00
iposva@chromium.org
1ce28eda0b - Expose CanvasPixelArray functionality directly in JavaScript 
indexed property accesses.
- The IC stubs have not been updated to handle these directly, but
  at least we do not have to leave the VM to access bytes.

Review URL: http://codereview.chromium.org/159263

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-28 08:43:51 +00:00
whesse@chromium.org
8558fde3a5 Make X64 implementation update Store ic stubs. Remove comment that talks about "below" on the stack meaning closer to the top. 
Review URL: http://codereview.chromium.org/159402

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2539 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-27 10:39:21 +00:00
vitalyr@chromium.org
57e8217c10 Stub Cache: speed up load callback accessor by allocating data handle on stack. 
Review URL: http://codereview.chromium.org/160041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2538 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-27 09:54:59 +00:00
whesse@chromium.org
500e10b648 Add inline caching for keyed loads and stores. Remove extra parentheses from some files. 
Review URL: http://codereview.chromium.org/159266

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2534 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-24 11:22:35 +00:00
yurys@chromium.org
161d38c614 Debugger should not stop in its own code and in code of built-in functions since it may confuse user.Debug break handler checks whether current function is a built-in or a debugger one and just resumes execution if it is. 
CallCheckStackGuardState is no longer called in loop in the RegExp code as it hangs if debug break flag is not reset after calling Execution::HandleStackGuardInterrupt.
Review URL: http://codereview.chromium.org/160001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-24 06:14:23 +00:00
whesse@chromium.org
1309d6df08 Fix typo in last change 
Review URL: http://codereview.chromium.org/160009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-23 13:05:36 +00:00
whesse@chromium.org
18c6337a2c Fix an error in a keyed lookup stub - HeapNumbers treated as strings. 
Review URL: http://codereview.chromium.org/155924

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-23 13:01:17 +00:00
whesse@chromium.org
f751483255 Correct sense of test for generic keyed load with a symbol as key. 
Review URL: http://codereview.chromium.org/155922

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-22 14:40:04 +00:00
kmillikin@chromium.org
dc30b11fbc Fix some defects identifies by Coverity Prevent. All are false 
positives, but I've restructured the code to be more explicit.

Review URL: http://codereview.chromium.org/159192

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-22 11:29:38 +00:00
kmillikin@chromium.org
2126c36279 Change RegExpMacroAssemblerIA32::CaseInsensitiveCompareUC16 so that it 
does not use stack-allocated character as a one-element character
array.

The use at this site was actually safe (Ecma262Canonicalize will only
write to the first character of the array), but not obviously so.

BUG=17103

Review URL: http://codereview.chromium.org/159071

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-20 10:54:00 +00:00
whesse@chromium.org
76833936b7 Make Array::kHeaderSize protected, and only use kHeaderSize of its subclasses. 
Many X64 bugs have been due to the difference between (unaligned) Array::kHeaderSize and (aligned) FixedArray::kHeaderSize.
Review URL: http://codereview.chromium.org/155687

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2502 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-17 12:12:24 +00:00
whesse@chromium.org
f8e622a620 Added inline caching for calls to a field to X64. Changed a use of Array::kHeaderSize to FixedArray::kHeaderSize on all platforms. 
Review URL: http://codereview.chromium.org/149798

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2496 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-17 08:55:01 +00:00
kasperl@chromium.org
38f5a84701 Avoid more static variables in inline functions. 
Review URL: http://codereview.chromium.org/149799

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2494 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-17 08:22:07 +00:00
kasperl@chromium.org
124ef540c0 Patch by Mark Mentovai. Don't put static variables inline. 
Original review: http://codereview.chromium.org/149768

TBR=kmillikin@chromium.org
Review URL: http://codereview.chromium.org/155679

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-17 05:37:09 +00:00
kasperl@chromium.org
94c4760225 Revert r2486, r2487, and r2488 until I get the chance to fix 
the performance issue with number dictionaries.

TBR=kmillikin@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-17 04:57:17 +00:00
bak@chromium.org
e0047e4331 Changed hash table to use more of the hash value when probing. 
Review URL: http://codereview.chromium.org/155350

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-16 12:56:50 +00:00
whesse@chromium.org
10605879f6 Disable inline caching on X64 separately for loads, stores, and calls, while they are being implemented and tested one-by-one. 
Review URL: http://codereview.chromium.org/149673

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-15 12:30:28 +00:00
kasperl@chromium.org
067b3af8b7 Attempt at work-around for http://crbug.com/16276 by explicitly checking 
for global objects in the assembly code for dictionary loads.
Review URL: http://codereview.chromium.org/155418

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2435 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-13 13:24:32 +00:00
kasperl@chromium.org
55a8088bd8 Add support for tracking down leak of the hole value. 
Review URL: http://codereview.chromium.org/149522

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-13 09:17:04 +00:00
kasperl@chromium.org
875dbe6584 Re-enable ICs for loads and calls that skips a global object during 
lookup through the prototype chain.
Review URL: http://codereview.chromium.org/155344

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2425 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-10 09:40:47 +00:00
kmillikin@chromium.org
726c29c0be Skip the write barrier for global property cell writes. The heap 
verification code was refactored to avoid verifying that property
cells have correct remembered sets.

Review URL: http://codereview.chromium.org/149392

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2423 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-09 14:34:08 +00:00
kasperl@chromium.org
98f1a228c6 Allow access through the global proxy to use ICs. 
Review URL: http://codereview.chromium.org/155283

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-09 11:17:57 +00:00
kasperl@chromium.org
9aa9458933 Fix crash that occurs when we're forced to delete a global 
property that used to be DontDelete and we still have an IC
that reads from the cell.
Review URL: http://codereview.chromium.org/149322

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2390 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-08 11:32:03 +00:00
kmillikin@chromium.org
8e0e670bde Change a few sites where the Handle<T>(NULL) constructor is used so 
that they use the static Handle<T>::null() member function instead.

Review URL: http://codereview.chromium.org/155135

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-07 11:41:21 +00:00
erik.corry@gmail.com
1a3d633edc Fix thinko in IC code. 
Review URL: http://codereview.chromium.org/149175

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2354 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-03 12:43:59 +00:00
bak@chromium.org
6bc979e879 Improved code for megamorphic stub on ia32. 
Review URL: http://codereview.chromium.org/150225

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2342 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-03 06:34:59 +00:00
bak@chromium.org
9aa0f380a6 Fixed arm/mac errors and presubmitting 2324. 
Review URL: http://codereview.chromium.org/151193

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-02 06:50:43 +00:00
ager@chromium.org
e75a173ff7 Revert r2324 until we can fix build and test errors. 
TBR=bak@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-01 16:49:54 +00:00
bak@chromium.org
5cbb209425 Removed virtual behavior from Dictionaries. 
Review URL: http://codereview.chromium.org/150168

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2324 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-01 15:38:25 +00:00
kasperl@chromium.org
6cfc5f1ef9 Treat the builtins object like other global objects (with 
cells in old space for properties) and avoid allocating tons
of unused properties in new space when creating new contexts.
Review URL: http://codereview.chromium.org/151146

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2319 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-07-01 11:44:37 +00:00
sgjesse@chromium.org
92bb897081 Tweaks to global object inline cache code. 
Remove the check for deleted properties in the global load inline cache if the property is known to be read only.

Propegate the in loop flag for the global call inline cache.

Changed the propagation of the code flags in the call stub compiler to compute these the same way for all types of call stubs and assert that the flags for the generated code is the same as those used for the cache lookup.

Addressed a few comments from previous review in test-api.cc.
Review URL: http://codereview.chromium.org/150101

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-30 14:07:29 +00:00
sgjesse@chromium.org
a54a4ada5c Changed the global object representation.The global object is now always in dictionary (slow) mode with each of its properties stored in a cell object. A cell object has one field containing the actual value for the property. Inline caches for access to global properties which uses direct to the cell are now created for load, store and call to properties of the global object. When properties of the global object are deleted the cell for that property is kept with an indcation of that the property is deleted.Added counters to track the use of the global property inline caches.Added additional information on IC's in the disassembler. 
Review URL: http://codereview.chromium.org/151019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-30 10:05:36 +00:00
erik.corry@gmail.com
c9e004a808 Add a compare stub on ARM. 
Review URL: http://codereview.chromium.org/151003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2295 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 13:52:13 +00:00
kasperl@chromium.org
f1ffd50257 Optimize %ClassOf() on IA-32 and use it instead of the 
custom %HasXXXClass() calls.
Review URL: http://codereview.chromium.org/151018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2293 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 10:45:16 +00:00
erik.corry@gmail.com
4a30e3f58e * Add missing imul instruction on Intel. 
* Fix incorrect signedness in disassembly of umull/mull on ARM.
* Fix incorrect register order in disassembly of umull/mull.
* Fix incorrect assembly of umull on ARM.
* Remove retroactively obsoleted restriction on choice of
  registers in mul instructions on ARM.
Review URL: http://codereview.chromium.org/150002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2292 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 09:32:06 +00:00
kasperl@chromium.org
a1622491af Optimize %IsConstructCall() on IA-32. 
Review URL: http://codereview.chromium.org/150018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2290 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 08:14:06 +00:00
kasperl@chromium.org
3ae01ab8ef Fix issue 392 by disabling the TakeValue optimization for 
access to the arguments object.
Review URL: http://codereview.chromium.org/150016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2285 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 06:20:52 +00:00
ager@chromium.org
681ab6e30c Reintroduce recording of source position that was lost on ia32 for 
some reason.
Review URL: http://codereview.chromium.org/147147

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2275 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-25 12:20:15 +00:00
ager@chromium.org
a5331d6426 Fix instance type check in apply optimization. 
We accidentally compared a map address with an instance type.  This
fix additionally avoids an upper bounds check that is not needed.

Review URL: http://codereview.chromium.org/149003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2272 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-25 11:35:03 +00:00
lrn@chromium.org
76ac8bc73b Removed static type inference and add a dynamic test for string addition. 
The complexity of static type inference never really paid off, and as an
analysis it didn't fit well with codegen frame propagation.

Review URL: http://codereview.chromium.org/146077


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2262 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-24 12:46:00 +00:00
kasperl@chromium.org
f66ea38c0b Allocate arguments object on-demand instead of at function entry. 
This allows Function.prototype.apply to not allocate the objects 
and copy the arguments directly from the stack.
Review URL: http://codereview.chromium.org/147075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2256 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-24 08:01:38 +00:00
whesse@chromium.org
c19fde4f1c X64 implementation: Change argument to relocator to take a 64-bit delta. Change maximum relocation info encoding length. 
Review URL: http://codereview.chromium.org/146021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-23 09:50:51 +00:00
ager@chromium.org
094d17ffeb x64: Generate code for loading from, storing to and calling properties. 
Review URL: http://codereview.chromium.org/141056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-23 06:12:14 +00:00
whesse@chromium.org
1ae3423af8 X64 implementation: Emit correct merge code for virtual frames at CFG merges. 
Review URL: http://codereview.chromium.org/141043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2238 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-22 14:22:39 +00:00
lrn@chromium.org
2dd9717c4b Fix bug in static type inference for loops. 
Review URL: http://codereview.chromium.org/140058


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-22 12:36:01 +00:00
kasperl@chromium.org
5f5fbd4e4a Allow functions to have custom construct stubs that are called 
when the function is instantiated.
Review URL: http://codereview.chromium.org/132063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-19 07:36:16 +00:00
bak@chromium.org
7dab62ee96 Changed allocation to allow large objects to be allocated in new space. 
This avoids back-to-back mark-sweep collections.

Review URL: http://codereview.chromium.org/136001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-18 14:06:36 +00:00
whesse@chromium.org
da49c0f8a2 X64 implementation: Add function literals and function calls. 
Review URL: http://codereview.chromium.org/131029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-18 11:46:38 +00:00
erik.corry@gmail.com
5f77401b0c Inline mod for integer powers of 2. 
Review URL: http://codereview.chromium.org/126293

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2215 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-18 07:33:44 +00:00
lrn@chromium.org
e9b13d9c39 X64: Implementation of a bunch of stubs, and some new opcodes. 
Review URL: http://codereview.chromium.org/125185


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-17 11:50:33 +00:00
kasperl@chromium.org
01216a069b Add fast negative checks for symbol equality: If we're comparing 
two symbols, they're only equal if the objects are identical.
Review URL: http://codereview.chromium.org/125184

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2188 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-16 12:54:07 +00:00
kmillikin@chromium.org
73fe551048 Remove the unused support for jump-table switch statements. 
Review URL: http://codereview.chromium.org/126193

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-16 09:50:37 +00:00
kasperl@chromium.org
7f27314644 Fix stack alignment issue with the new fast Math.random() code 
under Mac OS.
Review URL: http://codereview.chromium.org/125123

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-15 13:17:09 +00:00
ager@chromium.org
c1d0401b3d Two small fixes for the Math.sin and Math.cos optimizations. 
Review URL: http://codereview.chromium.org/125122

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2167 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-15 12:55:48 +00:00
ager@chromium.org
225a6a82b0 Optimize Math.sin and Math.cos by avoiding runtime calls. 
Review URL: http://codereview.chromium.org/125121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-15 12:06:48 +00:00
kasperl@chromium.org
ce7cdbd799 Change the implementation of Math.random to use George 
Marsaglia's multiply-with-carry instead of mixing the
bits obtained from calling the system random() twice.

This seems to be a bit faster and gives a better 
distribution than the system random() in particular on 
Windows. 
Review URL: http://codereview.chromium.org/126113

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-15 08:04:47 +00:00
kmillikin@chromium.org
6ed860b7d6 Remove branching and binding with two arguments from the JumpTarget 
class.  Manually manage off-frame results at the two sites where they
were used.

Review URL: http://codereview.chromium.org/125048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2157 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-12 14:43:27 +00:00
kmillikin@chromium.org
b318835cdc First round of JumpTarget simplification. Remove dead functions (jumps, 
branches, and bind with more than two arguments).  Remove unneeded
variable (the "watermark" on virtual frames).

Review URL: http://codereview.chromium.org/125045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-12 11:25:13 +00:00
ager@chromium.org
f706cfa30c Fix debugger after inlined keyed store change. 
Make sure that the IC is always hit when debugging and make sure to
restore the fast case when leaving the debugger.
Review URL: http://codereview.chromium.org/125044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-12 11:24:13 +00:00
ager@chromium.org
a8507cb43d Inline keyed stores if the code is in a loop and the key is likely to 
be a smi.

The inlined version works for stores to JSArrays where the key is a
smi that is within bounds of the array and the value is either
constant or a smi so we can skip the write-barrier.
Review URL: http://codereview.chromium.org/122035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-11 13:17:26 +00:00
kmillikin@chromium.org
2d7d89d831 Get rid of the notion of "parameter pointer" that no longer exists in 
the implementation but still lives on in comments and identifier
names.

Where it was used, it has been changed to "caller's stack pointer".
Review URL: http://codereview.chromium.org/118500

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2137 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 15:08:25 +00:00
kmillikin@chromium.org
35b5aab3c7 Fix a bug when shifting left by zero. Ensure that the left operand is 
writable (non-aliased) so it can be used for the result in the slow
case.

Review URL: http://codereview.chromium.org/118496

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 12:41:57 +00:00
erik.corry@gmail.com
8bd85d8c82 Add instanceof stub for ARM. 
Review URL: http://codereview.chromium.org/119353

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 11:42:13 +00:00
erik.corry@gmail.com
b7d48f5807 A bunch of changes to speed up math on ARM. 
* Identify heap numbers that contain non-Smi int32s and do bit
ops on them without calling the fp hardware or emulation.
* Identify results that are non-Smi int32s and write them into
heap numbers without calling the fp hardware or emulation.
* Do unary minus on heap numbers without going into the runtime
system.
* On add, sub and mul if we have both Smi and heapnumber inputs
to the same operation then convert the Smi to a double and do
the op without going into runtime system.  This also applies
if we have two Smi inputs but the result is not Smi.
Review URL: http://codereview.chromium.org/119241

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 10:20:37 +00:00
lrn@chromium.org
13e548af1d X64: Implement CEntryStub and JSEntryTrampoline. 
Still some supporting functions missing.

Review URL: http://codereview.chromium.org/114085


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 09:48:15 +00:00
kmillikin@chromium.org
94a122296d Cleanup of ARM exception handlers. Remove the unused code and 
parameter pointer slots.  Change it so that the handler address no
longer points into the middle of the handler.

Review URL: http://codereview.chromium.org/119414

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 09:00:07 +00:00
kmillikin@chromium.org
f6aa7ce3ee Change the IA32 stack handler layout so that the handler address does 
not point into the middle of the handler.  Also remove top-of-stack
caching from MacroAssembler::PushTryHandler.

Review URL: http://codereview.chromium.org/119358

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-10 08:01:30 +00:00
kmillikin@chromium.org
4a96feeef3 Change IA32's CodeGenerator::GenerateFastCharCodeAt to eagerly 
allocate and spill registers, so that the register reference counts
and virtual frame are unchanged in the main body.

This eliminates a few sites of magic branching or binding of
JumpTarget with arguments.

Review URL: http://codereview.chromium.org/119302

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-09 07:44:09 +00:00
kmillikin@chromium.org
0bfd850a26 Simplify the IA32 exception handler block by removing the unused code 
pointer and parameter pointer slots.

Review URL: http://codereview.chromium.org/118383

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-08 14:39:50 +00:00
mikhail.naganov@gmail.com
d7cccf6b8d Add log compression ability. 
This is a trivial per-row compression:
- short aliases are introduced for events and code creation tags;
- in tick events, offsets are used instead of absolute addresses;
- removed 'code-allocation' event, as it seems not used.

The first two options are depend on the new flag: 'compress-log', which is off by default.

On benchmarks run w/o snapshot, this gives 45% log size reduction.

Review URL: http://codereview.chromium.org/119304


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-08 13:39:48 +00:00
ager@chromium.org
24d22b567a Introduce an API to force the deletion of a property ignoring 
interceptors and dont-delete attributes.

Minor change to the behavior of eval: throw exception when calling
eval in a context for which the global has been detached.  This
matches the behavior of both Firefox and Safari post navigation in the
browser.
Review URL: http://codereview.chromium.org/118374

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-08 09:46:09 +00:00
kmillikin@chromium.org
bd82b972fc Simplify the processing of deferred code in the code generator. Our 
deferred code snippets are highly stylized.  They always make a call
to a stub or the runtime and then return.  This change takes advantage
of that.

Creating a deferred code object now captures a snapshot of the
registers in the virtual frame.  The registers are automatically saved
on entry to the deferred code and restored on exit.

The clients of deferred code must ensure that there is no change to
the registers in the virtual frame (eg, by allocating which can cause
spilling) or to the stack pointer.  That is currently the case.

As a separate change, I will add either code to verify this constraint
or else code to forbid any frame effect.

The deferred code itself does not use the virtual frame or register
allocator (or even the code generator).  It is raw macro assembler
code.
Review URL: http://codereview.chromium.org/118226

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-05 14:16:32 +00:00
kasperl@chromium.org
dfbc850ebc Revert revision 2108. This brings back the changes 
submitted in revisions 2093, 2094, 2099, and 2106.
There's no evidence that supports that these changes
should be the cause of the unexplained performance
regressions on the intl2 and DHTML page cyclers. 


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-05 08:07:15 +00:00
kasperl@chromium.org
84c09c6de4 Experimental revert of revisions 2093, 2094, 2099, and 
2106 to try to isolate a performance regression on the
page cyclers.

I'll roll the changes back in if this doesn't fix the
regression.

TBR=antonm@chromium.org
Review URL: http://codereview.chromium.org/118302

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2108 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-05 06:57:30 +00:00
whesse@chromium.org
32ce7956ac Fix formatting of one line. 
Review URL: http://codereview.chromium.org/119171

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-04 11:20:03 +00:00
whesse@chromium.org
2852f8d5e2 Declare register names as static constants rather than external globals. 
Review URL: http://codereview.chromium.org/119082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-04 11:09:17 +00:00
antonm@chromium.org
250081d671 Store lookup index in ARM stubs as well (see r2093 and 2094 for more info). 
Review URL: http://codereview.chromium.org/118163

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-03 16:09:43 +00:00
kmillikin@chromium.org
84ef2d3ace Refactor IA32 shift operations to simplify moving the right operand 
into the ecx register and to ensure that there is no frame effect
between the first entry to the deferred code and binding its exit.
Review URL: http://codereview.chromium.org/118157

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-03 12:20:56 +00:00
antonm@chromium.org
2e49a1c03d Follow up to r2093: forgotten files and changes. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-03 12:04:53 +00:00
kmillikin@chromium.org
a41b41bf98 As a simplification, manually inline the function 
DeferredInlineBinaryOperation::GenerateInlineCode and remove its
definition.  It was only called from one site and was the only
deferred code object that was split that way into fast-case inline and
slow-case stub.

Review URL: http://codereview.chromium.org/119037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-02 20:11:26 +00:00
kmillikin@chromium.org
c70a511b70 Factor out the code for emitting the IA32 binary operations div and 
mod so they do not share code with the other binary operations.  They
now preallocate their fixed registers (eax and edx).  There is now no
frame effect between entries to the deferred call to the stub.

Review URL: http://codereview.chromium.org/118110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-02 11:18:41 +00:00
mikhail.naganov@gmail.com
0fcedde224 Fix determining of JS lower stack bottom used in profiler's JS stack tracer to work with Chromium. 
My assumption that log initialization happens somewhere near the stack's bottom is true for V8's sample shell but isn't true for Chromium, causing many otherwise valid stack addresses to be thrown out. The solution proposed is to save stack pointer value for the outermost JS function in ThreadLocalTop similar to c_entry_fp.

Implemented only for IA-32. Currently I'm not dealing with profiling on ARM and x86-64 anyway.

Review URL: http://codereview.chromium.org/112082


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2086 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-02 09:33:17 +00:00
sgjesse@chromium.org
a019501be2 Change the handling of the debug break stack guard. The debug break is no longer ignored when hit inside "system" JavaScript. The reason for this is twofold: 
* Running "system" JavaScript with the debug break flag active leads to slow running code while waiting for the break in non "system" JavaScript (one exception to this it is to try to avoid breaks in the clear mirror cache JavaScript code called when leaving the debugger).

* If this happens while processing RegExp running in native code an infinite loop is created as the stack guard handler for RegExp does not move execution forward

Fixed a GC bug in the interrupt handling for RegExp running in native code.

Added test of debug break while in debug message handler callback and debug break while executing a RegExp.
Review URL: http://codereview.chromium.org/115262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-29 08:42:02 +00:00
kmillikin@chromium.org
3d15415414 Simplify deferred code by removing some unneeded or redundant stuff. 
Review URL: http://codereview.chromium.org/113895

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-27 15:13:00 +00:00
kmillikin@chromium.org
9c829fafe9 Change the register allocator so that it no longer tracks references 
to the platform-specific reserved registers.  They are always in use
for their intended purpose, cannot appear in the virtual frame, and
can be freely used without allocation in the code generator.

Review URL: http://codereview.chromium.org/113837

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-27 07:53:47 +00:00
erik.corry@gmail.com
01f7c87f22 This patch much improves our tracking of whether function is 
called from within a loop or not.  In the past we lost the
information if a call site went megamorphic before a lazily
compiled callee was called for the first time.  Now we track
that correctly (this is an issue that affects richards).
We still don't manage to track the in-loop state through a
constructor call, since constructor calls use LoadICs instead
of CallICs.  This issue affects delta-blue.  So in this patch
we assume that lazy compilations that don't happen through a
CallIC happen from inside a loop.  I have an idea to fix this
but this patch is big enough already.
With our improved tracking of in-loop state I have switched
off the inlining of in-object loads for code that is not in
a loop.  This benefits compile speed.  One issue is that
eagerly compiled code now doesn't get the in-object loads
inlined.  We need to eagerly compile less code to fix this.
Review URL: http://codereview.chromium.org/115744

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2046 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-25 18:29:02 +00:00
mikhail.naganov@gmail.com
30a0a7de43 Split nested namespaces declaration in two lines in accordance with C++ Style Guide. 
This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-25 10:05:56 +00:00
sgjesse@chromium.org
3e76ba9a78 Propagate information on whether a non function was called as constructor or not.The Arguments object passed to the callback now has IsConstructCall set accordingly.BUG=http://crbug.com/3285 
Review URL: http://codereview.chromium.org/113634

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2020 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 19:33:44 +00:00
iposva@chromium.org
f1774010e7 Fix unmotivated change which causes mismatch between function 
declaration and definition.

Review URL: http://codereview.chromium.org/113640

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2018 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 16:39:26 +00:00
whesse@chromium.org
1ac2603eb7 Add the REX prefix to 64-bit assembly operands. Move some inline functions. 
Review URL: http://codereview.chromium.org/115568

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 14:14:44 +00:00
whesse@chromium.org
59fab02e3e Implement constructor and destructor of 64-bit assembler 
Review URL: http://codereview.chromium.org/113631

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2014 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 12:17:23 +00:00
kmillikin@chromium.org
bcff796134 Size reduction of VirtualFrame objects. Remove the code generator and 
macro assembler pointers and all derived state.

Review URL: http://codereview.chromium.org/115564

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2011 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 11:14:18 +00:00
kmillikin@chromium.org
2ab1dedb03 Increase the size of VirtualFrame members to allow a larger number of 
parameters, stack-allocated locals, or expression stack elements.

Review URL: http://codereview.chromium.org/115535

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2002 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-19 20:29:23 +00:00
whesse@chromium.org
8987c93a12 Remove code that adjusts synced and copied flags in MergeTo. 
Review URL: http://codereview.chromium.org/113524

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1998 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-19 09:20:57 +00:00
kmillikin@chromium.org
0dda60a96d Inline some simple member functions of VirtualFrame. 
Review URL: http://codereview.chromium.org/113525

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1993 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 14:32:43 +00:00
kmillikin@chromium.org
a77d81c59b Fix a failure to correctly set the static type on a frame element at a 
backward jump.  The frame entering the backward block is not used, so
the this is mostly just a bookkeeping change.
Review URL: http://codereview.chromium.org/115464

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1989 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 13:16:35 +00:00
ager@chromium.org
ef85ba46b0 First round of size reduction for JumpTargets. Reduce their size by 
two words: there is no reason to keep a pointer to the current code
generator and macro assembler in the JumpTarget.
Review URL: http://codereview.chromium.org/113458

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1987 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 12:26:59 +00:00
bak@chromium.org
81af5beefa Changed FuncNameInferrer and ScopeInfo to support zone allocation. 
Yields a 2% speedup when running compiler-benchmark.

Review URL: http://codereview.chromium.org/113519

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 09:41:16 +00:00
kmillikin@chromium.org
20b3a4deaa Allow a few more (multiple-entry) deferred code snippets to take the 
fast-merge path by manually giving them an expected entry frame.

Review URL: http://codereview.chromium.org/113518

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 07:57:29 +00:00
iposva@chromium.org
5b72959f3e Remove space at end of line. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 23:05:21 +00:00
iposva@chromium.org
b5c6dc35f9 - Fix numeric overflow handling when compiling count operations. 
In certain situations the overflow checking corrupted the value
  being calculated.

Review URL: http://codereview.chromium.org/115423

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 22:36:26 +00:00
kmillikin@chromium.org
dc9473d817 Try to preallocate the scratch registers used for inlined keyed loads 
to allow fast entry to the deferred code if possible.

Review URL: http://codereview.chromium.org/113457

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1968 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 12:43:00 +00:00
kmillikin@chromium.org
f579685469 Remove the redundant flags is_bound_ and is_linked_ from the 
JumpTarget class in favor of using other internal state.

Review URL: http://codereview.chromium.org/113456

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 11:17:29 +00:00
ager@chromium.org
a3f30f5a3a Clean up the Result class. Reduce the size of Result from four words 
to one by keeping a stack of active code generators and by using
indirection to handles.

Mainly a cleanup.  No visible performance impact.
Review URL: http://codereview.chromium.org/113455

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1965 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 11:09:51 +00:00
whesse@chromium.org
0eb8d35a6d Polish code of VirtualFrame::MoveMemoryToRegister 
Review URL: http://codereview.chromium.org/113451

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1963 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 09:38:11 +00:00
kmillikin@chromium.org
6e5de93ad3 Bypass an expensive computation of a basic block's entry frame for a 
common case of a single forward edge (a fall-through).  This includes
exits from deferred code.

The fall-through frame is used, after removing constants and copies
above the high-water mark.
Review URL: http://codereview.chromium.org/113400

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 08:08:52 +00:00
whesse@chromium.org
4a12504f89 Improve algorithm for detaching and attaching a virtual frame to the code 
generator.  Inline copying of a register file.
Review URL: http://codereview.chromium.org/113402

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1954 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 16:06:04 +00:00
ager@chromium.org
af59c3d68f Reapply revision 1949. Stupid error. 
Add virtual destructor to jump targets to make compiler happy.
Review URL: http://codereview.chromium.org/113396

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1951 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 12:18:25 +00:00
ager@chromium.org
c9eda02def Revert revision 1949. 
Review URL: http://codereview.chromium.org/115350

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1950 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 11:55:18 +00:00
ager@chromium.org
f4778b007f Reduce the memory used by frame elements from two words to one by 
encoding the values in one word and by using an indirection table for
handles.

This reduces compilation time by roughly 10% and we should be able to make the slow case equality checking of frame elements faster as well.
Review URL: http://codereview.chromium.org/115347

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1949 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 11:43:09 +00:00
bak@chromium.org
9e02f380f0 Removed the delete calls to ZoneObjects. 
Review URL: http://codereview.chromium.org/115348

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1948 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 11:36:10 +00:00
bak@chromium.org
c70ec7a3d2 - Make VirtualFrame and JumpTarget zone allocated. 
- Compacted the VirtualFrame representation.
-> Improved the compiler speed with 10%

Review URL: http://codereview.chromium.org/115345

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 11:03:55 +00:00
kmillikin@chromium.org
f48a6bf30f Add more detailed timers of the various compilation passes. The 
aggregate compilation time timer is the same as it was before.

Review URL: http://codereview.chromium.org/115344

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1946 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 10:29:48 +00:00
kmillikin@chromium.org
ebbaeb3655 Initial bypass of JumpTarget::ComputeEntryFrame for deferred code 
entry labels where it is statically safe.

Review URL: http://codereview.chromium.org/115296

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1943 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 07:38:44 +00:00
erik.corry@gmail.com
4a120eccdc Fix asterisk spacing. 
Review URL: http://codereview.chromium.org/113333

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-13 12:34:35 +00:00
kmillikin@chromium.org
60c42717f3 Refactor JumpTarget::Combine. 
Review URL: http://codereview.chromium.org/113329

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-13 10:29:49 +00:00
kmillikin@chromium.org
18f69a7171 Fix for issue 341. In the stub for instanceof, we could try to read 
an object's map before we were sure it was a heap object.
Review URL: http://codereview.chromium.org/115236

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-12 11:40:14 +00:00
lrn@chromium.org
142fe3431a X64: General fixes - added inline definitions and changed some places to intptr_t. 
Review URL: http://codereview.chromium.org/113199


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-12 10:33:40 +00:00
kmillikin@chromium.org
bcab3697f6 Simplify JumpTarget::ComputeEntryFrame. Eliminate a separate pass 
over the frame elements to find registers used (before allocating
undetermined elements) and another pass to set the frame's register
indices (after allocating all elements).
Review URL: http://codereview.chromium.org/114018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-11 13:57:19 +00:00
kmillikin@chromium.org
5fab2d08f2 A register allocation bugfix. 
The function that prepares a virtual frame slot for writing (in order
to preserve the copy-on-write semantics of aliased frame elements) can
allocate registers, which may spill one from the frame.  If we're
unlucky, the spilled register can be the source register for the frame
element write.  In that case, ensure we do the write from memory.

Review URL: http://codereview.chromium.org/115125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1904 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-08 17:48:19 +00:00
mikhail.naganov@gmail.com
3e82fce446 Restore stack backtrace tests removed in revision 1785. 
To re-enable tests, instead of compiled code patching, inlined code is used.
Inlined code is only installed in test.

Review URL: http://codereview.chromium.org/108015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-07 09:24:43 +00:00
deanm@chromium.org
eb906555fc Cleanup include guards: 
- Fix some typos / guards that didn't match the filename.
- Fix some style inconsistencies.
- Add guards to files that were missing them.
- Add the directory name to the guard.

Review URL: http://codereview.chromium.org/99343


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1845 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-04 13:36:43 +00:00
feng@chromium.org
ecd705813f A simple fix of issue http://code.google.com/p/chromium/issues/detail?id=3285 
NPN_Construct allows a NPObject to be called as a construct. For example, the
test case

var s = new app.Packages.java.lang.Integer(5);

app.Packages.java.lang.Integer is a NPObject, and it implements NPN_Construct.

This fix allows a JSObject created by an API function be called as a construct
if it can be called
as a function. This is done by generating the same code for
var s = new app.Packages.java.lang.Integer(5); as
var s = app.Packages.java.lang.Integer(5);

and the caller handles both case correctly. A more sophiscated fix is to one
extra JSConstructCall
frame and allow CallAsConstructor in Builtin::HandleApiCallAsFunction.

This change itself shouldn't affect the semantic of normal case such as:

var a = {};
var s = new a();

A TypeError exception will be thrown in CALL_NON_FUNCTION (runtime.js).

Another part of fix is in the binding code, V8NPObject, which makes
NPN_InvokeDefault or NPN_Construct
call depending on which function is available. 
Review URL: http://codereview.chromium.org/100243

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-01 19:01:19 +00:00
erik.corry@gmail.com
ad23017469 When strings can change from an ASCII representation to a 
UC16 representation we need to be careful about flat strings.
Flat strings can be sliced or cons strings that have a flat
string under them, so when we ask a flat cons or a slice whether
it is ASCII or not we should ask the underlying string about
its representation.  This should fix
http://code.google.com/p/chromium/issues/detail?id=10971
Review URL: http://codereview.chromium.org/100249

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1830 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-01 11:16:29 +00:00
whesse@chromium.org
714e525b40 Improve register allocation of left shift operation. Add tests 
for all shift operations.
Review URL: http://codereview.chromium.org/101016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-30 09:21:50 +00:00
erik.corry@gmail.com
9a9e09ee73 Unbreak IA32 generated code coverage. 
Review URL: http://codereview.chromium.org/100156

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-29 11:04:28 +00:00
whesse@chromium.org
bd45424f02 Fix lint error 
Review URL: http://codereview.chromium.org/100105

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-28 15:14:44 +00:00
whesse@chromium.org
62c4153442 Change MergeTo code for virtual frames to use register indices. 
Review URL: http://codereview.chromium.org/99052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1808 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-28 13:53:15 +00:00
kmillikin@chromium.org
d30bc90b9c Inline the inobject property case for named property loads. 
Review URL: http://codereview.chromium.org/99120

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-28 10:40:36 +00:00
kmillikin@chromium.org
cc0c8d178f Materializing a frame element on the stack by pushing it can cause the 
stack pointer to change by more than one in a corner case.  If we push
a constant smi larger than 16 bits, we push it via a temporary
register.  Allocating the temporary can cause a register to be spilled
from the frame somewhere above the stack pointer.

As a fix, do not use pushes to materialize ranges of elements of size
larger than one.

Review URL: http://codereview.chromium.org/92121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1785 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-24 11:26:49 +00:00
christian.plesner.hansen@gmail.com
1f7e96743d - Extended lazy loading to general objects, not just functions. 
- Added lazily loaded JSON object.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-24 08:13:09 +00:00
lrn@chromium.org
a4d756a1c8 Move backend specific files to separate directories. 
Move ia32 and arm specific files to subdirectories to make it easier to add more backends.

Review URL: http://codereview.chromium.org/92068


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-23 12:06:38 +00:00