The porting of array allocation in generated code from ia32 to x64 wrongly assumed that a smi contained the actual number times 2. Removed the constant times_half_pointer_size, as it will probably not be needed.
Review URL: http://codereview.chromium.org/596084

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3845 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/597059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3844 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When adding a string with a smi value the number string cache is checked in generated code. If the there is a string value in the number string cache the resulting string is produced in generated code.
Review URL: http://codereview.chromium.org/596082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

All two character string results from adding two strings and from sub string used to be handled in the runtime system as a lookup in the symbol table was done before allocating a new string. The native code for string add and sub string now probes the symbol cache for two character strings to avoid the runtime call. If the result string is not found in the symbol table within a fixed number of probes a new string is just allocated. Newly allocated two character strings are not added to the symbol table immediately.
Review URL: http://codereview.chromium.org/598062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/573009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3841 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Begin changing the interface of the virtual-frame-based code generator
to avoid pushing short-lived temporaries on the frame.

Review URL: http://codereview.chromium.org/600097

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change add simple local live variable information to 
the fast code generator.  It supports only AST nodes that 
are accepted by the syntax checker.

Each variable use points to a variable definition structure
which contains the last use of the definition.

To determine whether a variable is live after a certain point
we can check whether its last use occurs later in the evaluation
order defined by the AST labeling number.

The new information is currently only printed out together with
the IR and not yet used for code generation.

Review URL: http://codereview.chromium.org/603004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/596036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/600069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/597022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3835 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

left operand.  For non-commutative operations the right operand could
be overwritten with the Smi left operand.

We need better testing of all of these cases.  We will add more test
cases as a separate commit.
Review URL: http://codereview.chromium.org/598059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Initial implementation of ad hoc must-be-smi tracking in the fast code
generator.  Type information is used to avoid the write barrier for
smi property stores and to avoid the smi check for the inputs/output
of bitwise OR.

Review URL: http://codereview.chromium.org/597021

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function instead of baking in the address of the first one that we see
in code.

This removes the need for fixups processing and makes the stubs safe
when there is no natives cache and therefore multiple versions of the
builtin functions.

Review URL: http://codereview.chromium.org/594009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch from Dineel D Sule <dsule@codeaurora.org>.
Original issue: http://codereview.chromium.org/600019

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/593038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/554152

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3830 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/598020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Explicitly check that global variables do not have accessors or
interceptors in the fast code generator syntax checker.

Review URL: http://codereview.chromium.org/595022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/593014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Do not use the speculative compiler for functions with other than one
statement in the body, and do not use it if subexpressions can have
side effects.  Bailing out to the beginning of the full code is not
sound if side effects have already occurred.

Add tests that would fail without the restrictions.

Review URL: http://codereview.chromium.org/598016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3826 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This uses the fact that if a map stayed the same then the object
still passes the type check. A new builtin is added to handle the
API call in this case.

Review URL: http://codereview.chromium.org/573003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Eliminate unused function KeyedStoreIC::GenerateExtendStorage, and unused parameter from StubCompiler::GenerateStoreField.
Review URL: http://codereview.chromium.org/575022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3824 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/597006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Support a binary operation (bitwise OR) so long as it's not nested in
the left subexpression.  This ensures that the expression stack never
has height greater than two and so can be kept fully in registers.

The bounded expression stack height and the absence of any side
effects on the fast path allows us to still bailout out to the very
beginning of the function if any of our fast-path checks fail.

Review URL: http://codereview.chromium.org/594008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3822 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/597005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3821 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Change GenerateLoadStringLength to have two scratch registers on all platforms.  This is needed so that the LoadIC can pass the receiver in a register, and not have it overwritten, and also simplifies the code.
Review URL: http://codereview.chromium.org/596011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3820 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

on functions that takes five or more arguments. Original version runs
for a long time when there is 5 arguments in a runtime function (45+
seconds). The fuzzer can be run with all arguments on all functions
regardless of the number of arguments by setting
RUN_WITH_ALL_ARGUMENT_ENTRIES to true in fuzz-natives.js


Review URL: http://codereview.chromium.org/598011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added helper functions to the fast code generator for temporary, ad hoc
fixed register allocation.  Also inlined some helper functions that had only
one call site to simplify the code generator API for now.

Review URL: http://codereview.chromium.org/586002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/583008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

1. Eliminate unnecessary include of register-allocator-inl.h in frame-element.h.
2. Move functions register-allocator.h to the -inl.h file if they use other inline functions.
3. Add missing includes that resulted from the above changes.


Review URL: http://codereview.chromium.org/585009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/584006

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TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/574027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3813 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

-inl.h files should only contains small inline functions and
no class declarations. Implementation moved to codegen.cc since
it's not a performance critical class (only used in DEBUG mode).
 
Review URL: http://codereview.chromium.org/585004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

entire file prior to parsing it. This allows processing of huge
log files (over 200 MB.)

Review URL: http://codereview.chromium.org/574015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3811 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a first step towards loading globals directly from property cells instead
of going through a load IC.

This change supports only properties with the DontDelete attribute since
we are only able to bailout into the generic code generated by the secondary 
code generator the beginning of a function. The resulting fast-case code is 
specialized for a specific context. When invoked with a different global object, 
it will always bailout to the secondary code.

When loading a property that does not exist at compile-time or a property
that is deleteable we still generate the generic load IC.

Review URL: http://codereview.chromium.org/565034

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all stubs have valid major_keys, and this is OK. So I've added
a check to avoid termination in debug mode.

Review URL: http://codereview.chromium.org/572034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/571005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch from Kun Zhang <zhangk@codeaurora.org>, see http://codereview.chromium.org/569015.
Review URL: http://codereview.chromium.org/573027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3804 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/570040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

After this fix, profiles of non-snapshotted VMs are now equivalent to
profiles of snapshotted VMs (having that --log-snapshot-positions is used,
and mksnapshot's log is given to the tick processor script.)

BUG=597

Review URL: http://codereview.chromium.org/574005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00