This patch returns false in HARD_REGNO_CALL_PART_CLOBBERED if
!HARD_REGNO_MODE_OK.
Returning true for such registers might lead to performance
degradation that eat up all performance gained from 4.6 to 4.7
for example.
Ok to apply?
Johann
PR 53595
* config/avr/avr.c (avr_hard_re
2012/6/28 Georg-Johann Lay :
> This patch returns false in HARD_REGNO_CALL_PART_CLOBBERED if
> !HARD_REGNO_MODE_OK.
>
> Returning true for such registers might lead to performance
> degradation that eat up all performance gained from 4.6 to 4.7
> for example.
>
> Ok to apply?
>
> Johann
>
>