1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGenCXX/regparm.cpp b/test/CodeGenCXX/regparm.cpp
index f0ebd2b..2196c79 100644
--- a/test/CodeGenCXX/regparm.cpp
+++ b/test/CodeGenCXX/regparm.cpp
@@ -4,3 +4,35 @@
 // CHECK: _Z3fooRi(i32* inreg
 void __attribute__ ((regparm (1)))  foo(int &a) {
 }
+
+struct S1 {
+  int x;
+  S1(const S1 &y);
+};
+
+void __attribute__((regparm(3))) foo2(S1 a, int b);
+// CHECK: declare void @_Z4foo22S1i(%struct.S1* inreg, i32 inreg)
+void bar2(S1 a, int b) {
+  foo2(a, b);
+}
+
+struct S2 {
+  int x;
+};
+
+void __attribute__((regparm(3))) foo3(struct S2 a, int b);
+// CHECK: declare void @_Z4foo32S2i(i32 inreg, i32 inreg)
+void bar3(struct S2 a, int b) {
+  foo3(a, b);
+}
+
+struct S3 {
+  struct {
+    struct {} b[0];
+  } a;
+};
+__attribute((regparm(2))) void foo4(S3 a, int b);
+// CHECK: declare void @_Z4foo42S3i(%struct.S3* byval align 4, i32 inreg)
+void bar3(S3 a, int b) {
+  foo4(a, b);
+}