canonicalize maps for object literals. JSON objects
  with the same set of properties names will then
  share the same map.
  This reduces the amount of generated code associated 
  with object literals.
- Added a flag canonicalize_object_literal_maps.
  (default true)
- Changed the format of a function's literal array.
  Only the global context is now stored in the literal prefix.

Review URL: http://codereview.chromium.org/4078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

on a line of its own.  This allows the body to be terminated by a
single-line comment.

Also, make sure to set the name of the function to anonymous after the
fact so that recursion through the name anonymous is not allowed and
so that global variables called anonymous are not shadowed.

This is a fix for http://code.google.com/p/v8/issues/detail?id=85
Review URL: http://codereview.chromium.org/4248

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Don't defer the stack check failure code.  It is a CallStub, which will be a single 5 byte call instruction.  This should cause equivalent code size now, but opens up the opportunity to make one of the most common jcc's to use short encoding in the future.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@369 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Check domain security on prototypes in for-in loop.

Review URL: http://codereview.chromium.org/4236

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

it just makes the linker generate a MAP file for the shell
sample on Windows.
Review URL: http://codereview.chromium.org/4064

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by pop eax.
Review URL: http://codereview.chromium.org/4212

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Enable string pooling in the VS release build.  This saves 46k for a v8_shell_sample.exe, I didn't measure performance or the overall change to a Chromium build.  I think this option should always make sense anyway, unless we're using some string constants incorrectly.

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functions in the macro assembler.
Review URL: http://codereview.chromium.org/4402

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@363 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Renamed some ::kSizes to ::kHeaderSizes to avoid confusion.


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of activation frames (needed on Mac OS X).
Review URL: http://codereview.chromium.org/4211

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It seems noone has had time to file a bug on this.
Review URL: http://codereview.chromium.org/4210

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from JavaScript to C++). Includes a few slight optimizations 
like keeping argv in a callee-saved register.
Review URL: http://codereview.chromium.org/4035

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consistent with the other log events for generated code.
Review URL: http://codereview.chromium.org/4033

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Thanks to Erik Corry for spotting this.

Review URL: http://codereview.chromium.org/4015

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variables into lists before appending to them.
Review URL: http://codereview.chromium.org/3185

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upper case. Moved it into the RelocInfo class together with the associated
is_xxx functions. Renamed is_xxx to IsXxx in the process.

Removed the exit_js_frame mode as it was no longer used.

Patch Set 2 renames RELOC_MODE_COUNT to NUMBER_OF_MODES and fixes a couple of lint errors.
Review URL: http://codereview.chromium.org/3186

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In release, disable UNREACHABLE and make UNIMPLEMENTED and FATAL simpler, removing the file name and line numbers, so we carry around less data and can share more code.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

mode. Remove /Ob2 /Oi /Oy from VS build because they are 
already enabled by /Ox.
Review URL: http://codereview.chromium.org/4012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The reason for the "ugly" definition of SScanF is that the Windows CRT does not have a vsscanf function making it difficult to add OS::SSprintF to platform.h.
Review URL: http://codereview.chromium.org/2988

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Avoid the KMP overhead for simple indexOf() operations.  Will look into evaluating the best cutoff between a simple search and KMP in the future.  This improves some simple operations ~1.5x.

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Don't try an indexOf() when the search string is bigger than the string.  The current code will spend a bunch of time trying to match, even though we should know a match is impossible.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TryFlatten is inlined, while Flatten is not.  Make an optimization to avoid the call to Flatten when we're already flat.  This gives me 5% on some simple indexOf experiments.

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Review URL: http://codereview.chromium.org/2985

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Review URL: http://codereview.chromium.org/3144

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Added fast-case for switch statement where all lables are constant Smi's in a limited range (IA32 only so far).
Implemented using a jump-table, for constant time lookup.


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Update the lookup and update code for code caches to deal with deleted
elements.

Do not clear the code cache for the builtins object.  If there was a
matching element in the code cache, we would have hit the monomorphic
prototype failure case and removed it.
Review URL: http://codereview.chromium.org/3140

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to the assembler.
Review URL: http://codereview.chromium.org/2961

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information does not work.  In certains situations, it will keep
alternating between unrelated monomorphic states instead of going
megamorphic.
Review URL: http://codereview.chromium.org/2959

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Review URL: http://codereview.chromium.org/2958

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until a possible debug break location is reached. Currently this is call sites
with calls to code objects and JS return. Source position information in the
code therefore no longer refers to the "first" instruction generated for a
given source position (which was not the case defered code anyway) but to the
first break location after that source position was passed (again defered code
always start with source position information). This doesn't make a difference
for the debugger as it will always be stopped only at debug break locations.
However, this makes the life of the peep-hole optimizer much easier as many
oportunities for posh/pop eliminations where previosly blocked by relocation
information already written to the code object.

Two types of source positions are still collected. Statement positions indicate
the position of the start of the statement leading to this code and (plain)
positions indicate other places typically call sites to help indicate current
position in backtraces. The two different types of positions are also used to
distinguish between step next and step in.

Runs all the tests (including debugger tests) as before.

Moved the checking for the FLAG_debug_info to one place.

I will do the same changes to the ARM codegenerator in a seperate changelist.

Review URL: http://codereview.chromium.org/2957

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since %DebugPrint is not often used.  Needed for some performance testing
statistics outputting.

Fix the declaration of descriptor enumerated constants to be more readable.
Review URL: http://codereview.chromium.org/3100

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occured.  After a monomorphic prototype failure has been detected,
other monomorphic inline caches for the same type will have a code
object in the map's code cache which is not the current target.  We
recognize this case and use the code object that is in the cache
instead of going megamorphic.

Review URL: http://codereview.chromium.org/2928

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version 0.3.3.
Review URL: http://codereview.chromium.org/3101

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Changed the formatting of the comment in the disassembler output to contain
more information on code targets.
Review URL: http://codereview.chromium.org/3099

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The old arrangement meant that the alignment requirements of young space were
likely to nullify ASLR.
Review URL: http://codereview.chromium.org/2925

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A change in the way heap was allocated meant that the initial heap size was
sometimes not higher than the limit, which mean that the limit started having
and effect and prevented V8 from booting up.

Fixes http://code.google.com/p/v8/issues/detail?id=25
Review URL: http://codereview.chromium.org/2924

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Review URL: http://codereview.chromium.org/2923

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Review URL: http://codereview.chromium.org/3096

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