[Bug tree-optimization/54877] [4.7/4.8 Regression] ICE: tree check: expected ssa_name, have real_cst in copy_ssa_name_fn, at tree-ssanames.c:335

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54877

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-10-10 17:47:19 UTC ---
Author: jakub
Date: Wed Oct 10 17:47:05 2012
New Revision: 192322

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192322
Log:
    PR tree-optimization/54877
    * tree-vect-loop.c (vect_is_simple_reduction_1): For MINUS_EXPR
    use make_ssa_name instead of copy_ssa_name.

    * gcc.dg/torture/pr54877.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr54877.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c