[Bug rtl-optimization/64291] [5 Regression] Miscompile t-div in GMP's testsuite

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64291

--- Comment #6 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Thu Dec 18 20:49:44 2014
New Revision: 218874

URL: https://gcc.gnu.org/viewcvs?rev=218874&root=gcc&view=rev
Log:
2014-12-18  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/64291
    * lra-remat.c (bad_for_rematerialization_p): Add UNPSEC_VLOATILE.
    (create_cands): Process only output reload insn with potential
    cands.

2014-12-18  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/64291
    * testsuite/gcc.target/i386/pr64291-[12].c: New tests.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr64291-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr64291-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-remat.c
    trunk/gcc/testsuite/ChangeLog