[Bug rtl-optimization/71275] [7 regression] Performance drop after r235660 on x86-64 in 32-bit mode.

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71275

--- Comment #6 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Sat May 28 00:22:56 2016
New Revision: 236843

URL: https://gcc.gnu.org/viewcvs?rev=236843&root=gcc&view=rev
Log:
ira.c bb_loop_depth again

Follow the same practice as other places in ira.c, where
free_dominance_info is called along with loop_optimizer_finalize.  Not
doing so causes an ICE on gcc-5-branch, so avoid that possibility on
trunk.

        PR rtl-optimization/71275
        * ira.c (ira): Free dominance info.

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