[Bug tree-optimization/87360] [8 Regression] ICE in remove_redundant_iv_tests at gcc/tree-ssa-loop-ivcanon.c:571 since r255467

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87360

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jan  8 10:10:34 2019
New Revision: 267697

URL: https://gcc.gnu.org/viewcvs?rev=267697&root=gcc&view=rev
Log:
        Backported from mainline
        2018-12-05  Jakub Jelinek  <ja...@redhat.com>

        PR tree-optimization/87360
        * gimple-loop-jam.c (tree_loop_unroll_and_jam): On failure to analyze
        data dependencies, don't return false, just continue.

        * g++.dg/opt/pr87360.C: New test.
        * gfortran.dg/pr87360.f90: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/g++.dg/opt/pr87360.C
    branches/gcc-8-branch/gcc/testsuite/gfortran.dg/pr87360.f90
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/gimple-loop-jam.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog