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Re: g77 performance on ALPHA
- To: toon@moene.indiv.nluug.nl
- Subject: Re: g77 performance on ALPHA
- From: N8TM@aol.com
- Date: Tue, 31 Aug 1999 21:45:14 EDT
- CC: torvalds@transmeta.com, submit-linux-egcs@transmeta.com, gcc@gcc.gnu.org
In a message dated 8/31/99 1:53:21 PM EST, toon@moene.indiv.nluug.nl writes:
> I'd say that g77 should
> be able to push up all the loads and and down all the stores in the
> loop.
It would need to allocate a different group of registers for each iteration
of the loop. This would be a big advantage on some of the processors which
don't remap registers, and maybe on those which seem to take extra time to
move loads past stores. I've been assuming that the trend is toward CPU's
which don't depend so much on the compiler.
Tim