Andi Kleen wrote:
quoted text
>> "=A" works on 32-bit systems (only), obviously, and gcc will generally 
>> produce slightly better code as a result (gcc could really use a 
>> register renaming/copy propagation step *after* multi-register entities 
> 
> I believe gcc 4.3 (or maybe 4.2) does that already -- it splits them much 
> earlier.

Probably 4.3, then.  I don't see 4.2 doing that, or at least not very 
successfully.  Which is fine, I'm sure they had bigger fish to fry. 
Good to hear it has gotten some attention recently.

	-hpa
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