[Bug tree-optimization/66129] [6 Regression] FAIL: gcc.dg/vect/vect-strided-*c execution test

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66129

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Oops...

Index: tree-vect-slp.c
===================================================================
--- tree-vect-slp.c     (revision 223119)
+++ tree-vect-slp.c     (working copy)
@@ -3459,7 +3459,7 @@ vect_schedule_slp_instance (slp_tree nod
              tree *melts = XALLOCAVEC (tree, TYPE_VECTOR_SUBPARTS (vectype));
              for (l = 0; l < TYPE_VECTOR_SUBPARTS (vectype); ++l)
                {
-                 if (k > group_size)
+                 if (k >= group_size)
                    k = 0;
                  melts[l] = build_int_cst
                      (meltype, mask[k++] * TYPE_VECTOR_SUBPARTS (vectype) +
l);