[Bug rtl-optimization/80481] Unoptimal additional copy instructions

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80481

--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Fri Jan 12 17:00:36 2018
New Revision: 256590

URL: https://gcc.gnu.org/viewcvs?rev=256590&root=gcc&view=rev
Log:
2018-01-12  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/80481
        * ira-color.c (get_cap_member): New function.
        (allocnos_conflict_by_live_ranges_p): Use it.
        (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
        (setup_slot_coalesced_allocno_live_ranges): Ditto.

2018-01-12  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/80481
        * g++.dg/pr80481.C: New.


Added:
    trunk/gcc/testsuite/g++.dg/pr80481.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-color.c
    trunk/gcc/testsuite/ChangeLog