===================================================================
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-ftree-vectorize" } */
+
+unsigned int
+zj (unsigned int et)
+{
+ signed char jr = 0;
+
+ do {
+ et *= 3;
+ jr += 2;
+ } while (jr >= 0);
+
+ if (et == (unsigned int) jr)
+ et = 0;
+
+ return et;
+}
===================================================================
@@ -6101,6 +6101,8 @@ vectorizable_reduction (stmt_vec_info st
if (ncopies > 1
&& STMT_VINFO_RELEVANT (reduc_stmt_info) <= vect_used_only_live
&& (use_stmt_info = loop_vinfo->lookup_single_use (phi_result))
+ && (!STMT_VINFO_IN_PATTERN_P (use_stmt_info)
+ || !STMT_VINFO_PATTERN_DEF_SEQ (use_stmt_info))
&& vect_stmt_to_vectorize (use_stmt_info) == reduc_stmt_info)
single_defuse_cycle = true;
@@ -6868,6 +6870,8 @@ vectorizable_reduction (stmt_vec_info st
if (ncopies > 1
&& (STMT_VINFO_RELEVANT (stmt_info) <= vect_used_only_live)
&& (use_stmt_info = loop_vinfo->lookup_single_use (reduc_phi_result))
+ && (!STMT_VINFO_IN_PATTERN_P (use_stmt_info)
+ || !STMT_VINFO_PATTERN_DEF_SEQ (use_stmt_info))
&& vect_stmt_to_vectorize (use_stmt_info) == stmt_info)
{
single_defuse_cycle = true;