[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 #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, so vect_recog_mult_pattern detects IV address computations here.  Not too
useful in this case, but hey.  Does

Index: gcc/testsuite/gcc.dg/vect/vect-widen-mult-const-u16.c
===================================================================
--- gcc/testsuite/gcc.dg/vect/vect-widen-mult-const-u16.c       (revision
231745)
+++ gcc/testsuite/gcc.dg/vect/vect-widen-mult-const-u16.c       (working copy)
@@ -73,4 +73,5 @@ int main (void)

 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 3 "vect" { target
vect_widen_mult_hi_to_si } } } */
 /* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern: detected"
2 "vect" { target vect_widen_mult_hi_to_si_pattern } } } */
-/* { dg-final { scan-tree-dump-times "pattern recognized" 2 "vect" { target
vect_widen_mult_hi_to_si_pattern } } } */
+/* { dg-final { scan-tree-dump-times "pattern recognized" 2 "vect" { target
vect_widen_mult_hi_to_si_pattern  && vect_int_mult } } } */
+/* { dg-final { scan-tree-dump-times "pattern recognized" 4 "vect" { target
vect_widen_mult_hi_to_si_pattern  && ! vect_int_mult } } } */

fix this?  If so can you please adjust the other testcase accordingly and
commit?