[Bug tree-optimization/71055] [7 Regression] FAIL: gcc.dg/torture/pr53663-1.c -Os execution test

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71055

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jan  4 12:35:32 2017
New Revision: 244053

URL: https://gcc.gnu.org/viewcvs?rev=244053&root=gcc&view=rev
Log:
2017-01-04  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2016-05-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71055
        * tree-ssa-sccvn.c (vn_reference_lookup_3): When native-interpreting
        sth with precision not equal to access size verify we don't chop
        off bits.

        * gcc.dg/torture/pr71055.c: New testcase.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71055.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/testsuite/ChangeLog
    branches/gcc-6-branch/gcc/tree-ssa-sccvn.c