Re: compilers using MMX instructions in the generated code

plakal@cs.wisc.edu
9 Jan 2000 22:52:01 -0500

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From: plakal@cs.wisc.edu
Newsgroups: comp.compilers
Date: 9 Jan 2000 22:52:01 -0500
Organization: University of WI, Madison -- Computer Sciences Dept.
References: 00-01-011
Keywords: optimize, code

Ramkishor <ramkik@sasi.com> wrote:
> Are there any compilers, which can use MMX instructions(Any SIMD
> instructions like 3DNow from AMD or VIS from SUN etc.) in the code
> generated by them?


Dunno about MMX/3DNow-type extensions, but most of the ISA
extensions also include some prefetching/memory-hint
instructions that help to improve cache behavior during
specific kinds of memory-intensive computation. Specifically,
the recent Intel SSE (I've forgotten what it stands for)
extensions include some instructions that seem to be generated
by newer compilers from Intel and which seem to have helped
Intel's recent SPECfp scores. Search around in comp.arch
for some threads that discuss this.


Manoj


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