diff --git a/gcc/testsuite/gcc.dg/vect/pr45847.c b/gcc/testsuite/gcc.dg/vect/pr45847.c
new file mode 100644
index 0000000..f34caa1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr45847.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+
+
+long long foo (long long *__restrict a,  int *__restrict b, int *__restrict c )
+{
+  int i;
+  long long sum=0;
+  for (i=0;i<256;i++)
+   sum += (long long)b[i] * c[i];
+
+  return sum;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
+
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c
index 0d5824c..ebe00d6 100644
--- a/gcc/tree-vect-patterns.c
+++ b/gcc/tree-vect-patterns.c
@@ -413,6 +413,7 @@ vect_recog_widen_mult_pattern (gimple last_stmt,
   vectype = get_vectype_for_scalar_type (half_type0);
   vectype_out = get_vectype_for_scalar_type (type);
   if (!vectype
+      || !vectype_out
       || !supportable_widening_operation (WIDEN_MULT_EXPR, last_stmt,
 					  vectype_out, vectype,
 					  &dummy, &dummy, &dummy_code,