[Bug tree-optimization/58978] [4.9 Regression] ICE: Segmentation fault

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58978

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Nov  4 20:17:17 2013
New Revision: 204357

URL: http://gcc.gnu.org/viewcvs?rev=204357&root=gcc&view=rev
Log:
    PR tree-optimization/58978
    * tree-vrp.c (all_imm_uses_in_stmt_or_feed_cond): Don't modify
    use_stmt by single_imm_use directly.  Only call single_imm_use
    on SSA_NAMEs.

    * gcc.c-torture/compile/pr58978.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr58978.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c