[Bug target/62662] [4.9/5 Regression] Miscompilation of Qt on s390x

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62662

--- Comment #8 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Author: krebbel
Date: Fri Sep 19 09:20:38 2014
New Revision: 215383

URL: https://gcc.gnu.org/viewcvs?rev=215383&root=gcc&view=rev
Log:
2014-09-19  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

    PR target/62662
    * config/s390/s390.c (s390_emit_epilogue): When doing the return
    address load optimization force s390_optimize_prologue to leave it
    that way.  Only do the optimization if we already decided to push
    r14 into a stack slot.


Modified:
    branches/gcc-4_9-branch/gcc/config/s390/s390.c