Expansion of memset and memcpy calls.

[Ajit Kumar Agarwal]

Hello All:

Memset and Memcpy calls are extensively used in many benchmarks. Inlining or expansion
the memcpy and memset calls improves the performance of many performance 
Benchmark. 
I have implemented the expansion of strcmp  to the optimizaed sequence of instruction
In open64 compiler for AMD x86 target.

Can I suggest and propose to expand the memset and memcpy calls to the sequence
Of instruction as many targets like ARM are moving implementation of memcpy and 
Memset in assembly instead of C. This makes it easier to expand the memcpy and 
Memset call in gcc.

To implement this in GCC we need to expand similarly to the implementation as  builtins.

Let me know what do you think.

Thanks & Regards
Ajit