[Bug target/64180] PowerPC carry bit improvements

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64180

--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Wed Dec 10 18:31:15 2014
New Revision: 218591

URL: https://gcc.gnu.org/viewcvs?rev=218591&root=gcc&view=rev
Log:
    PR target/64180
    * config/rs6000/rs6000.md (*ctr<mode>_internal1, *ctr<mode>_internal2,
    *ctr<mode>_internal5, *ctr<mode>_internal6): Change "r" alternatives
    to "b".  Increase length.
    (splitters for these): Split to cmp+addi instead of addic.

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