[Bug target/83986] [6 Regression] ICE in maybe_record_trace_start, at dwarf2cfi.c:2348

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83986

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jun 25 17:19:13 2018
New Revision: 262059

URL: https://gcc.gnu.org/viewcvs?rev=262059&root=gcc&view=rev
Log:
        Backported from mainline
        2018-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/83986
        * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
        dependence against last_pending_memory_flush in addition to
        pending_jump_insns.

        * gcc.dg/pr83986.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/pr83986.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/sched-deps.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog