[Bug ipa/78644] [7 Regression] ICE: SIGSEGV in is_gimple_reg_type with -Og -fipa-cp

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78644

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 28 13:57:43 2017
New Revision: 246534

URL: https://gcc.gnu.org/viewcvs?rev=246534&root=gcc&view=rev
Log:
2017-03-28  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/78644
        * tree-ssa-ccp.c (evaluate_stmt): When we may not use the value
        of a simplification result we may not use it at all.

        * gcc.dg/pr78644-1.c: New testcase.
        * gcc.dg/pr78644-2.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/pr78644-1.c
    trunk/gcc/testsuite/gcc.dg/pr78644-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c