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Re: RFC: Prefetch instruction support
- To: gcc at gcc dot gnu dot org, hubicka at atrey dot karlin dot mff dot cuni dot cz
- Subject: Re: RFC: Prefetch instruction support
- From: Brad Lucier <lucier at math dot purdue dot edu>
- Date: Tue, 11 Apr 2000 16:09:49 -0500 (EST)
- Cc: lucier at math dot purdue dot edu
Altivec on PowerPC G4 also has prefetch instructions that may be useful
for regular code, even if you don't generate vector Altivec instructions.
It would be useful on the Alpha, too. Right now on my 21264 I'm memory
bound (some computations are basically free, compared to what it would cost
to store them on the heap for retrieval).
Brad Lucier