[Bug tree-optimization/71588] [4.9/5/6/7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in execute_todo, at passes.c:2009

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71588

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jun 21 06:59:33 2016
New Revision: 237628

URL: https://gcc.gnu.org/viewcvs?rev=237628&root=gcc&view=rev
Log:
        PR tree-optimization/71588
        * tree-ssa-strlen.c (valid_builtin_call): New function.
        (adjust_last_stmt, handle_builtin_memset, strlen_optimize_stmt): Use
        it.

        * gcc.dg/pr71558.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr71558.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-strlen.c