On 06/30/2015 02:37 PM, Jakub Jelinek wrote:
> I'd say the most natural API for this would be to allow
> f{fixed,call-{used,saved}}-REG in target attribute.
Either that or
__attribute__((fixed(rbp,rcx),used(rax,rbx),saved(r11)))
... just to be shorter. Either way, I would consider this to be
desirable -- I have myself used this to good effect in a past life
(*cough* Transmeta *cough*) -- but not a high priority feature.
-hpa
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