[Bug tree-optimization/81740] [7 Regression] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81740

Christophe Lyon <clyon at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |clyon at gcc dot gnu.org

--- Comment #12 from Christophe Lyon <clyon at gcc dot gnu.org> ---

> Added:
>     branches/gcc-8-branch/gcc/testsuite/gcc.dg/tree-ssa/pr89725.c
>     branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/bb-slp-pr90006.c
>     branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/pr81740-1.c
>     branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/pr81740-2.c

Hi Richard,
I think you need to backport r269978:
    2019-03-27  Bill Schmidt  <wschmidt@linux.ibm.com>

        * gcc.dg/vect/pr81740-2.c: Require vect_hw_misalign.

(FWIW I see this test failing on armeb, while it is unsupported on trunk)