1 files changed, 79 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/copy-assign-synthesis.cpp b/clang/test/CodeGenCXX/copy-assign-synthesis.cpp
new file mode 100644
index 0000000..e9fc0c3
--- /dev/null
+++ b/clang/test/CodeGenCXX/copy-assign-synthesis.cpp
@@ -0,0 +1,79 @@
+// RUN: %clang_cc1 -emit-llvm -o %t %s
+// RUN: grep "_ZN1XaSERK1X" %t | count 0
+
+extern "C" int printf(...);
+
+struct B {
+  B() : B1(3.14), B2(3.15), auB2(3.16)  {} 
+  float B1;
+  float B2;
+  void pr() {
+    printf("B1 = %f B2 = %f auB1 = %f\n", B1, B2, auB1);
+  }
+
+  union {
+    float auB1;
+    float auB2;
+  };
+};
+
+struct M {
+  M() : M1(10), M2(11) , auM1(12) {} 
+  int M1;
+  int M2;
+  void pr() {
+    printf("M1 = %d M2 = %d auM1 = %d auM2 = %d\n", M1, M2, auM1, auM2);
+  }
+  union {
+    int auM1;
+    int auM2;
+  };
+};
+
+struct N  : B {
+  N() : N1(20), N2(21) {} 
+  int N1;
+  int N2;
+  void pr() {
+    printf("N1 = %d N2 = %d\n", N1, N2);
+    B::pr();
+  }
+};
+
+struct Q {
+  Q() : Q1(30), Q2(31) {} 
+  int Q1;
+  int Q2;
+  void pr() {
+    printf("Q1 = %d Q2 = %d\n", Q1, Q2);
+  }
+};
+
+
+struct X : M , N { 
+  X() : d(0.0), d1(1.1), d2(1.2), d3(1.3) {}
+  double d;
+  double d1;
+  double d2;
+  double d3;
+  void pr() {
+    printf("d = %f d1 = %f d2 = %f d3 = %f\n", d, d1,d2,d3);
+    M::pr(); N::pr();
+    q1.pr(); q2.pr();
+  }
+
+ Q q1, q2;
+}; 
+
+
+X srcX; 
+X dstX; 
+X dstY; 
+
+int main() {
+  dstY = dstX = srcX;
+  srcX.pr();
+  dstX.pr();
+  dstY.pr();
+}
+