[Bug middle-end/66375] [4.8/4.9/5/6 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66375

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jun  3 07:57:13 2015
New Revision: 224060

URL: https://gcc.gnu.org/viewcvs?rev=224060&root=gcc&view=rev
Log:
2015-06-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66375
        * tree-scalar-evolution.c (follow_ssa_edge_binary): First
        add to the evolution before following SSA edges.

        * gcc.dg/torture/pr66375.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr66375.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-scalar-evolution.c