[Bug target/53976] [SH] Unnecessary clrt/sett after bt/bf

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53976

--- Comment #11 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Author: olegendo
Date: Sun Nov 23 21:45:18 2014
New Revision: 217989

URL: https://gcc.gnu.org/viewcvs?rev=217989&root=gcc&view=rev
Log:
gcc/
    Backport from mainline
    2014-11-23  Oleg Endo  <olegendo@gcc.gnu.org>

    PR target/53976
    * config/sh/sh_optimize_sett_clrt.cc
    (sh_optimize_sett_clrt::find_last_ccreg_values): Return bool instead
    of void.  Abort at complex edges.
    (sh_optimize_sett_clrt::execute): Do nothing if find_last_ccreg_values
    returned false.

Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/config/sh/sh_optimize_sett_clrt.cc