[Bug rtl-optimization/85876] ICE in move_op_ascend, at sel-sched.c:6164

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85876

--- Comment #2 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
Author: amonakov
Date: Tue Apr  2 15:39:22 2019
New Revision: 270095

URL: https://gcc.gnu.org/viewcvs?rev=270095&root=gcc&view=rev
Log:
sel-sched: fixup reset of first_insn (PR 85876)

2019-04-02  Andrey Belevantsev  <a...@ispras.ru>

        PR rtl-optimization/85876
        * sel-sched.c (code_motion_path_driver): Avoid unwinding first_insn
        beyond the original fence.

        * gcc.dg/pr85876.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr85876.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/sel-sched.c
    trunk/gcc/testsuite/ChangeLog