[Bug tree-optimization/69956] [6 Regression] Wrong vector type @ fold-const

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69956

--- Comment #4 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
Author: ienkovich
Date: Tue Mar  1 11:17:44 2016
New Revision: 233850

URL: https://gcc.gnu.org/viewcvs?rev=233850&root=gcc&view=rev
Log:
gcc/

        PR tree-optimization/69956
        * tree-vect-stmts.c (supportable_widening_operation): Support
        multi-step conversion of boolean vectors.
        (supportable_narrowing_operation): Likewise.

gcc/testsuite/

        PR tree-optimization/69956
        * gcc.dg/pr69956.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr69956.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-stmts.c