diff --git a/testsuite/c_test/sanity_test/SANITY0021-cc_param2/cc_param2.c b/testsuite/c_test/sanity_test/SANITY0021-cc_param2/cc_param2.c
new file mode 100644
index 0000000000000000000000000000000000000000..083050da0a3080ee4d2f7a03559bb0e1a5f6a9ff
--- /dev/null
+++ b/testsuite/c_test/sanity_test/SANITY0021-cc_param2/cc_param2.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) [2021] Futurewei Technologies, Inc. All rights reverved.
+ *
+ * Licensed under the Mulan Permissive Software License v2.
+ * You can use this software according to the terms and conditions of the MulanPSL - 2.0.
+ * You may obtain a copy of MulanPSL - 2.0 at:
+ *
+ *   https://opensource.org/licenses/MulanPSL-2.0
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR
+ * FIT FOR A PARTICULAR PURPOSE.
+ * See the MulanPSL - 2.0 for more details.
+ */
+
+//
+// Test calling convention of passing half-half struct param
+//
+#include <stdlib.h>
+typedef struct { long long i; int j; } S0;
+typedef struct { long long i; int j; } S1;
+typedef struct { long long i; int j; } S2;
+
+// IntCC: 1 intreg short, half of s passed on stack, half in fpreg
+void foo1( int i1, int i2, int i3, S0 r, int i4, int i5, int i6, int i7, S1 s, S1 t )
+{
+  if (r.j != 2) abort();
+  if (s.j != 4) abort();
+  if (t.j != 6) abort();
+}
+
+void foo2( int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, S1 s, S1 t )
+{
+  if (s.j != 4) abort();
+  if (t.j != 6) abort();
+}
+
+int main()
+{
+    S0 x = { 1, 2 };
+    S1 y = { 3, 4 };
+    S1 z = { 5, 6 };
+
+    foo1(1,2,3,x,4,5,6,7, y, z);
+    foo2(0,0,0,0,0,0,0,0, y, z);
+}
diff --git a/testsuite/c_test/sanity_test/SANITY0021-cc_param2/test.cfg b/testsuite/c_test/sanity_test/SANITY0021-cc_param2/test.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..4ec3978c8c5c1d37c46b595f0b9345a02e8e59e2
--- /dev/null
+++ b/testsuite/c_test/sanity_test/SANITY0021-cc_param2/test.cfg
@@ -0,0 +1,3 @@
+clean()
+compile(cc_param2)
+run(cc_param2)