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Re: GCC trunk SPEC2000 performance
> Jan Hubicka wrote:
>
> > Hmm, obvious fix appears to be the patch attached. I am not at all sure
> > whether it is the sane fix,
>
> > ! if (REG_POINTER (map->x_regno_reg_rtx[regno]))
> ===
> > ! if (REG_P (map->x_regno_reg_rtx[regno])
> > ! && REG_POINTER (map->x_regno_reg_rtx[regno]))
>
> Well, I'd say _no_, it isn't a sane fix. As the name implies, the
> x_regno_reg_rtx[] member of the struct *map is a REGISTER rtx and
> therefore *should* *not* be a MEM (as Janis' excellent rtl flag checking
> code correctly diagnoses).
That was my concern too. I've digged in deeper and it appears to come
from modifying registers in place to memory in function.c. Nasty trick
I am not sure what to do about. But I will read the rest of discussion
first.
Honza