[Bug tree-optimization/69579] [4.9/5/6 Regression] gcc ICE at -O3 and __sigsetjmp with “tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases”

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69579

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Feb  1 12:39:04 2016
New Revision: 233036

URL: https://gcc.gnu.org/viewcvs?rev=233036&root=gcc&view=rev
Log:
2016-02-01  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/69579
        * tree-ssa-loop-ivcanon.c (propagate_constants_for_unrolling):
        Do not propagate through abnormal PHI results.

        * gcc.dg/setjmp-6.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/setjmp-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-ivcanon.c