[Bug tree-optimization/77605] [5/6 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77605

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Sep 19 06:55:17 2016
New Revision: 240227

URL: https://gcc.gnu.org/viewcvs?rev=240227&root=gcc&view=rev
Log:
2016-09-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/77605
        * tree-data-ref.c (analyze_subscript_affine_affine): Use the
        proper niter to bound the loops.

        * gcc.dg/torture/pr77605.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr77605.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c