Joern Rennecke <[EMAIL PROTECTED]> writes:
> I'm not sure if this changed with IRA,
Acts the same with 4.3 and 4.4.
> reload will look for the alternative with the cheapest total cost of
> alternative and reloads.
This was the key. Disparaging the smaller class's alternative with
'?' works -
I'm not sure if this changed with IRA, but at least with the old reload
code, if the instruction doesn't match, reload will look for
the alternative with the cheapest total cost of alternative and
reloads. Unfortunately, the fact that some reloads might be impossible
does not figure in the decisio
I've got this code:
(define_insn "andhi3_24"
[(set (match_operand:HI 0 "mra_operand"
"=Sd,Sd,*Rhl,*Rhl,RhiSd,??Rmm,RhiSd,??Rmm")
(and:HI (match_operand:HI 1 "mra_operand" "%0,0,*0,*0,0,0,0,0")
(match_operand:HI 2 "mrai_operand"
"Imb,Imw,*Imb,*Imw,iRhiSd,?Rmm,?Rmm,iRhiS
