Richard Henderson wrote:
> On 02/17/12 07:11, Georg-Johann Lay wrote:
>> ; (insn 13 12 8 (parallel [
>> ; (set (reg:SI 22 r22)
>> ; (mem:SI (lo_sum:PSI (reg:QI 21 r21)
>> ; (reg:HI 30 r30)) [0 S4 A8 AS7]))
>> ; (clobber (reg:QI 21 r21))
>> ; (clobber (reg:HI 30 r30))
>> ; ]) movmem.c:42 15 {xload_si_libgcc}
>> ; (expr_list:REG_DEAD (reg:QI 21 r21)
>> ; (expr_list:REG_DEAD (reg:QI 31 r31)
>> ; (expr_list:REG_UNUSED (reg:QI 21 r21)
>> ; (expr_list:REG_UNUSED (reg:HI 30 r30)
>> ; (nil))))))
>> rcall __xload_4 ; 13 xload_si_libgcc [length = 1]
>>
>> Notice the REG_UNUSED for R21 and R30 which are wrong.
>
> No, that's correct.
>
> REG_UNUSED isn't about inputs, it's about outputs.
Yes, of course
...maybe too much of gcc for me at one single day...
Thanks for the answer
Johann
