[Bug c/86046] [9 Regression] ICE in execute_todo, at passes.c:2043

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86046

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jun  5 10:02:50 2018
New Revision: 261193

URL: https://gcc.gnu.org/viewcvs?rev=261193&root=gcc&view=rev
Log:
2018-06-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/86046
        * tree-ssa.c (maybe_optimize_var): Clear DECL_GIMPLE_REG_P
        if required after clearing TREE_ADDRESSABLE.

        * gcc.dg/pr86046.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr86046.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c