[Bug rtl-optimization/70478] [LRA] S/390: Performance regression - superfluous stack frame

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70478

--- Comment #8 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Fri Apr  7 16:01:50 2017
New Revision: 246764

URL: https://gcc.gnu.org/viewcvs?rev=246764&root=gcc&view=rev
Log:
2017-04-07  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * lra-constraints.c (process_alt_operands): Disfavor alternative
        insn memory operands.

2017-04-07  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * gcc.target/s390/pr70478.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/s390/pr70478.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog