[Bug testsuite/68776] [6 regression] gcc.dg/vect/vect-widen-mult-const-[su]16.c failures since r226675

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68776

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 18 13:52:11 2015
New Revision: 231815

URL: https://gcc.gnu.org/viewcvs?rev=231815&root=gcc&view=rev
Log:
2015-12-18  Richard Biener  <rguenther@suse.de>

        PR testsuite/68776
        * tree-vect-patterns.c (struct vect_recog_func): New.
        (vect_vect_recog_func_ptrs): Make an array of function name pairs.
        (vect_pattern_recog_1): Print the recognized pattern name.  Return
        true if a pattern was recognized.
        (vect_pattern_recog): Adjust.  Stop iterating over pattern recognition
        functions on a stmt if a pattern was recognized.

        * gcc.dg/vect/vect-widen-mult-const-s16.c: Adjust.
        * gcc.dg/vect/vect-widen-mult-const-u16.c: Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/vect/vect-widen-mult-const-s16.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-widen-mult-const-u16.c
    trunk/gcc/tree-vect-patterns.c