[rs6000] Fix PR target/50091

[Eric Botcazou]

> Tested on PowerPC/Darwin by Iain and on PowerPC/Linux by me.  OK for
> mainline and the 4.6/4.5 branches?
>
>
> 2011-09-06  Eric Botcazou  <ebotcazou@adacore.com>
> 	    Iain Sandoe  <developer@sandoe-acoustics.co.uk>
>
> 	PR target/50091
> 	* config/rs6000/rs6000.md (probe_stack): Use explicit operand.
> 	* config/rs6000/rs6000.c (output_probe_stack_range): Likewise.

Ping for the patch: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00361.html

Thanks in advance.

-- 
Eric Botcazou