--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/opt/store-merging-2.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,10 @@
+// PR target/92038
+// { dg-do compile { target int32 } }
+// { dg-require-effective-target store_merge }
+// { dg-options "-O2 -flifetime-dse=2 -fdump-tree-store-merging-details" }
+// { dg-final { scan-tree-dump "New sequence of 2 stores to replace old one of 3 stores" "store-merging" } }
+
+struct T { char a[128]; };
+struct S { S () : a () { a.a[12] = 0; a.a[13] = 1; a.a[14] = 0; a.a[15] = 6; } T a; };
+void foo (S &);
+void bar (void) { S s; foo (s); }