[Bug tree-optimization/71083] [5/6/7 Regression] Unaligned bit-field address when predictive commoning

[edlinger at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71083

--- Comment #11 from Bernd Edlinger <edlinger at gcc dot gnu.org> ---
Author: edlinger
Date: Fri Aug 12 18:56:30 2016
New Revision: 239424

URL: https://gcc.gnu.org/viewcvs?rev=239424&root=gcc&view=rev
Log:
2016-08-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Backport from mainline
        2016-08-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/71083
        * tree-predcom.c (ref_at_iteration): Correctly align the
        reference type.

testsuite:
2016-08-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Backport from mainline
        2016-08-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/71083
        * gcc.c-torture/execute/pr71083.c: New test.
        * gnat.dg/loop_optimization23.adb: New test.
        * gnat.dg/loop_optimization23_pkg.ads: New test.
        * gnat.dg/loop_optimization23_pkg.adb: New test.

Added:
    branches/gcc-5-branch/gcc/testsuite/gcc.c-torture/execute/pr71083.c
    branches/gcc-5-branch/gcc/testsuite/gnat.dg/loop_optimization23.adb
    branches/gcc-5-branch/gcc/testsuite/gnat.dg/loop_optimization23_pkg.adb
    branches/gcc-5-branch/gcc/testsuite/gnat.dg/loop_optimization23_pkg.ads
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/testsuite/ChangeLog
    branches/gcc-5-branch/gcc/tree-predcom.c