[Bug tree-optimization/70509] wrong code with extract from a v64qi

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70509

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Apr  5 16:58:50 2016
New Revision: 234754

URL: https://gcc.gnu.org/viewcvs?rev=234754&root=gcc&view=rev
Log:
        PR tree-optimization/70509
        * tree-ssa-forwprop.c (simplify_bitfield_ref): Use bitsize_int instead
        of the vector base type for index.

        * gcc.target/i386/avx512bw-pr70509.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr70509.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c