[Bug tree-optimization/91200] ICE on valid code at -O1: verify_ssa failed

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91200

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Jul 19 12:24:53 2019
New Revision: 273602

URL: https://gcc.gnu.org/viewcvs?rev=273602&root=gcc&view=rev
Log:
2019-07-19  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/91200
        * tree-ssa-phiopt.c (cond_store_replacement): Check we have
        no PHI nodes in middle-bb.

        * gcc.dg/torture/pr91200.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr91200.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c