On 06/17/2011 02:20 AM, Georg-Johann Lay wrote: > Richard Henderson schrieb: >> On 06/15/2011 02:47 AM, Georg-Johann Lay wrote: >>> +#if defined (L_loop_ffsqi2) >>> +;; Helper for ffshi2, ffssi2 >>> +;; r25:r24 = r26 + zero_extend16 (ffs8(r24)) >>> +;; r24 must be != 0 >>> +;; clobbers: r26 >>> +DEFUN __loop_ffsqi2 >> >> Why does this function have "loop" in its name? The actual >> implementation is surely irrelevant. > > hmmm. I needed some global name that can be referenced from __ffshi2 > resp. __ffssi2. The function in itself is not very helpful as stand > alone. You prefer some other naming for such global helpers?
__ffsqi_nz perhaps? > The following instruction is BRNE, a conditional branch. Oops, missed that, sorry. > Yes, you are right. Following patchlet ok? > > Johann > > > * config/avr/libgcc.S (__ctzsi2, __ctzhi2): > Map zero to 255. You'd also delete the COUNT_LEADING_ZEROS_0 definition in longlong.h. r~
