Regarding SIMD features of GCC

[ranjith kumar]

Hi,
    I have the following queries:

1) Apart from general optimizations (enabled by -O3
flag), what is the total list of optimizations done by
gcc(GNU C compiler) for Pentium-4 processor?
ie)processor specific optimizations only

Can any one tell any source where I can find them?

2)Where can I find list of functions and data types
defined to exploit SIMD features of Pentium-4
processor  by GCC. (I am familiar with SIMD features
of Pentium-4.)

3) Pentium-4 has special instructions like MOVNTQ,
MOVNTPS ...to enable data from XMM and MMX registers
to be stored to memory using a non-temporal hint.

How to do the same in a  C language?

Can any one help me?
Thanks. 


		
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