Moved initialization of xmm3 making sure it is initialized on all paths in GeneratePow - solves the sputnik failure on mac.

Review URL: http://codereview.chromium.org/661177

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contexts have been disposed. 
Review URL: http://codereview.chromium.org/661173

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

  This reduces the number of mark sweep operations.

Review URL: http://codereview.chromium.org/661175

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3969 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/660172

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

same method as the old powi version in runtime.cc and also checks if
the exponent is 0.5 or -0.5 in which case we calculate the square root or 
reciprocal value of the square root.


Review URL: http://codereview.chromium.org/660072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3964 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Introducing a virtual-frame-inl.h file containing some platform-independent
virtual frame function which are small enough to be inlined.

Removed unnecessary #include of virtual-frame.h from register-allocator-inl.h
and added the necessary explicit includes in a number of files.

Review URL: http://codereview.chromium.org/660104

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3962 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

fails on the partial snapshots branch.
Review URL: http://codereview.chromium.org/660169

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

traces produces with --trace-gc.
Review URL: http://codereview.chromium.org/661170

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/661090

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3957 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

is a return in each branch of an if-else.

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/661088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3956 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/608031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3955 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Optimize three Number2Integer functions in runtime.cc: remove the check that was already done in JavaScript, add simpler code in case we are getting a SMI 
result.

Code review: http://codereview.chromium.org/660084


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3954 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/660086

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3953 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A separate object type for the code cache have been added. This object has two different code caches. The first one (default_cache) is a fixed array organized in the same way as the as the code cache was before. The second cache (global_access_cache) is for code stubs to access the global object. This cache is organized as a hash table taking the property name and code flags as the key.

The reason for separating the global access stubs into a hash table representation is that the number of these is not bounded in the same was as the other types.

BUG=613
Review URL: http://codereview.chromium.org/652119

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3952 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/660078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3950 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3949 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It bailed out too early, and could give a DEBUG assertion failure due
to right shift being artihmetic. Changed values to unsigned to be safe.

Review URL: http://codereview.chromium.org/661076

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3948 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

AllignFrame/CallCFuntion moved from regexp-macro-assembler-ia32 to macro-assembler-ia32 (like in x64 version).

Review URL: http://codereview.chromium.org/657080

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/661071

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3946 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650127

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3943 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=http://crbug.com/36604

Review URL: http://codereview.chromium.org/660004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=http://crbug.com/36602

Review URL: http://codereview.chromium.org/657081

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3941 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Codereview URL: http://codereview.chromium.org/659002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This caused some regressions in Chromium.

BUG=http://crbug.com/36604
Review URL: http://codereview.chromium.org/652228

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Review URL: http://codereview.chromium.org/570022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It is now possible to experiment with profiler guided optimizations when building V8. First build an instrumented sample shell:

  > scons pgo=instrument sample=shell

Then run the JavaScript code to optimize for using that sample shell. Finally build an optimized sample shell.

  > scons pgo=optimize sample=shell

Currently this does not work when building V8 as a DLL due to scons deleting v8.exp prior to the pgo=optimize step.

Due to a bug in Visual Studio (seen in version 2008) the function MessageDispatchHelperThread::Run() in debug.cc needs to be empty for this to work.
Review URL: http://codereview.chromium.org/652114

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650047

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Review URL: http://codereview.chromium.org/652110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/652041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3929 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/654003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

These two asserts in ComputeEntryFrame are wrong since the
virtual frame already knows how to deal with the number type
information of copy elements: We do not store type 
information with copy elements. Instead the backing element
contains the type information.


Review URL: http://codereview.chromium.org/652044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650140

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3925 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650136

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Some functions of the stub cache returned undefined if a code stub could not be generated. However the clients of these functions only cehcks for failure. Now all these functions return a failire object if no code stub can be made available
Review URL: http://codereview.chromium.org/652039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Original review: http://codereview.chromium.org/646010/show

Change the implementation of lastIndexOf method of String. Convert the
strings in question to Vector<char> or Vector<uc16> and execute simple
search algorithm on them.

The difference in speed on 500k character string is about 10x.

TBR=ager@chromium.org

Review URL: http://codereview.chromium.org/650036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/650028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A list of bailout descriptions is kept in the CompilationInfo
structure that is shared between the primary and secondary code
generators.  The primary adds a description to the list for each
bailout position.

Responsibility for binding labels is moved from the primary to the
secondary code generator. All the labels still target the start of the
secondary code and the compilation state of the primary is still
ignored.

Move the compilation mode flag to the CompilationInfo.

Review URL: http://codereview.chromium.org/651031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/647022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00