[Bug tree-optimization/89572] [7 Regression] ICE in dyn_cast<gcond*, gimple>(gimple*) / get_loop_exit_condition(loop const*)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89572

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Mar 14 09:14:30 2019
New Revision: 269675

URL: https://gcc.gnu.org/viewcvs?rev=269675&root=gcc&view=rev
Log:
2019-03-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/89572
        * tree-scalar-evolution.c (get_loop_exit_condition): Use
        safe_dyn_cast.
        * tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables):
        Use gimple_location_safe.

        * gcc.dg/torture/pr89572.c: New testcase.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/torture/pr89572.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/ChangeLog
    branches/gcc-8-branch/gcc/tree-scalar-evolution.c
    branches/gcc-8-branch/gcc/tree-ssa-loop-ivcanon.c