[Bug rtl-optimization/70890] [7 regression] r235660 miscompiles stage2 compiler on ia64

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70890

--- Comment #7 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Tue May  3 14:43:35 2016
New Revision: 235825

URL: https://gcc.gnu.org/viewcvs?rev=235825&root=gcc&view=rev
Log:
PR70890, stage2 miscompilation

        PR rtl-optimization/70890
        * ira.c (combine_and_move_insns): When moving def_insn, remove
        equivs on use_insn.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira.c