stack traversal code.
Review URL: http://codereview.chromium.org/523051

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generator.

The Slot::Type enumeration has four values.  It should never be
necessary to use a default to handle the case of a value out of range
of the enumeration.  Doing so silences a useful warning when one of
the enumeration values is actually forgotten or when a new enumeration
value is added.

Review URL: http://codereview.chromium.org/521019

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Save one instruction by using stm instead of push.

Review URL: http://codereview.chromium.org/517027

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Until now we only supported postfix operations on global variables.
This change add generic count operations to the top-level compiler.

I tried to re-use code from the code generator used for assignment expressions
where possible.

Review URL: http://codereview.chromium.org/496009

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Review URL: http://codereview.chromium.org/523036

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Instead of falling back to calling GetObjectProperty we call GetCharAt
directly if the object is a string and the key in a SMI.

Review URL: http://codereview.chromium.org/522015

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Review URL: http://codereview.chromium.org/519007

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If a function contains more than a certain number of locals (IA32: 9, X64: 6, ARM: 4) 
a loop for initializing the locals with 'undefined' is more compact. 
For less locals we unroll that loop by emitting a sequence of push instructions.

Review URL: http://codereview.chromium.org/515012

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- Replaced the or instruction with lea. 

Review URL: http://codereview.chromium.org/521003

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non-large objects that cannot contain non-map-word pointers to other
heap objects into the old data space.

Review URL: http://codereview.chromium.org/502100

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TBR=fschneider@chromium.org
Review URL: http://codereview.chromium.org/507069

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that attempt to run with a small heap.  Additionally, it can
potentially keep a lot of string data alive and it is never flushed.
Can we make it grow dynamically if used so that we can still start the
VM with a small heap size?
Review URL: http://codereview.chromium.org/503081

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the code generator.

The runtime function checks if it needs to create a boilerplate
object or if it can clone from an existing boilerplate.

This is already done in the top-level compiler. 

Review URL: http://codereview.chromium.org/507036

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- Change the instruction order for inlined allocation.

Review URL: http://codereview.chromium.org/501170

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Review URL: http://codereview.chromium.org/503079

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int32 for bitops.  undefined converts to zero in ToInt32 conversions.

Review URL: http://codereview.chromium.org/508020

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Review URL: http://codereview.chromium.org/508006

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the comparison it uses in the code generator.  Use Math.floor for
date operations.
Review URL: http://codereview.chromium.org/509007

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us much.
Review URL: http://codereview.chromium.org/509006

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operation can throw an exception.

Review URL: http://codereview.chromium.org/504073

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fixed contexts slots. Take this into account when using
the new, fast context creation path to avoid allocating
too many slots (wasteful).
Review URL: http://codereview.chromium.org/501148

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input so we don't have to check the exception flags afterwards.
Review URL: http://codereview.chromium.org/509001

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MacroAssembler::PopHandleScope emits a runtime call (through a stub),
which should not be allowed to perform a GC but return a failure
instead.

BUG=30790
TEST=none

Review URL: http://codereview.chromium.org/504071

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Review URL: http://codereview.chromium.org/491079


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Recommit r3494 after fixing stupid mistake where the deferred code stub didn't know it was reversed.

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Still no support for lookup-variables, so we bailout if using the catch variable.

Review URL: http://codereview.chromium.org/501076


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Force mark sweep instead of compcation if size of map space is too big to allow forward pointers encoding.

Review URL: http://codereview.chromium.org/507025

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is a constant by avoiding a few checks.
Review URL: http://codereview.chromium.org/504057

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Review URL: http://codereview.chromium.org/501113

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to floating point and then converting back we convert directly to a
32 bit integer.  In addition the bit twiddling implementation of float-
to-integer conversion has been ported from ARM.  Testing has shown that
this runs faster than the x87 or SSE3 rounding instructions.  This change
is IA32 only.  There may be a smaller benefit from doing the same on x64.
Review URL: http://codereview.chromium.org/506052

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Review URL: http://codereview.chromium.org/504056

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-Inlined double variant of compare iff one of the sides is a constant smi and it is not a for loop condition.

Review URL: http://codereview.chromium.org/507040

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  for DeferredInlineBinaryOperations.

Review URL: http://codereview.chromium.org/502067

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arrays and argument objects on IA-32.
Review URL: http://codereview.chromium.org/503042

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property name in a register rather than on the stack below the
receiver and arguments.

Implemented only for IA32, passing the name in the ecx register to
match the calling convention of the load ICs.

Review URL: http://codereview.chromium.org/502028

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