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Re: rs6000: Trivial code generation stupidity
- From: degger at fhm dot edu
- To: dje at watson dot ibm dot com
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 17 Dec 2001 19:44:55 +0100 (CET)
- Subject: Re: rs6000: Trivial code generation stupidity
- Reply-to: degger at fhm dot edu
On 17 Dec, David Edelsohn wrote:
> Yes, GCC has degraded to introducing unnecessary, intermediate
> register moves that it previously avoided.
Is there anything that can be done about it? Gcc 3.1 (or what it is now)
generates quite good code for me at the moment except for in some really
obvious cases (like the ones mentioned) and thus it would be a shame to
give away some performance by those nasties.
--
Servus,
Daniel