r181796 - in /trunk/gcc: ChangeLog config/rs600...

[rth@gcc.gnu.org]

Author: rth
Date: Tue Nov 29 04:50:13 2011
New Revision: 181796

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181796
Log:
rs6000: Streamline boolval output for compare-and-swap.

        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
        Handle overlap between retval and oldval.  Always compute boolval
        from CR0 EQ value.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c