[Bug tree-optimization/88069] [9 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:709

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88069

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 20 10:27:57 2018
New Revision: 266308

URL: https://gcc.gnu.org/viewcvs?rev=266308&root=gcc&view=rev
Log:
2018-11-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88069
        * tree-ssa-sccvn.c (visit_phi): Do not value-number to unvisited
        virtual PHI arguments.

        * gcc.dg/pr88069.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr88069.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c