Patch adds support for copying of those
objective-c++ class objects which have GC'able objc object
pointers and need to use ObjC's objc_memmove_collectable
API (radar 8070772).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106061 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/implicit-copy-assign-operator.mm b/test/CodeGenCXX/implicit-copy-assign-operator.mm
new file mode 100644
index 0000000..16ae147
--- /dev/null
+++ b/test/CodeGenCXX/implicit-copy-assign-operator.mm
@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -fobjc-gc -emit-llvm -triple x86_64-apple-darwin10.0.0 -o - %s | FileCheck %s
+struct A {
+ A &operator=(const A&);
+ A &operator=(A&);
+};
+
+struct B {
+ B &operator=(B&);
+};
+
+struct C {
+ virtual C& operator=(const C&);
+};
+
+struct POD {
+ id myobjc;
+ int array[3][4];
+};
+
+struct CopyByValue {
+ CopyByValue(const CopyByValue&);
+ CopyByValue &operator=(CopyByValue);
+};
+
+struct D : A, B, virtual C {
+ int scalar;
+ int scalar_array[2][3];
+ B class_member;
+ C class_member_array[2][3];
+ POD pod_array[2][3];
+
+ union {
+ int x;
+ float f[3];
+ };
+
+ CopyByValue by_value;
+};
+
+void test_D(D d1, D d2) {
+ d1 = d2;
+}
+
+// CHECK: define linkonce_odr %struct.D* @_ZN1DaSERS_
+// CHECK: {{call.*_ZN1AaSERS_}}
+// CHECK: {{call.*_ZN1BaSERS_}}
+// CHECK: {{call.*_ZN1CaSERKS_}}
+// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
+// CHECK: {{call.*_ZN1BaSERS_}}
+// CHECK: br
+// CHECK: {{call.*_ZN1CaSERKS_}}
+// CHECK: {{call.*@objc_memmove_collectable}}
+// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
+// CHECK: call void @_ZN11CopyByValueC1ERKS_
+// CHECK: {{call.*_ZN11CopyByValueaSES_}}
+// CHECK: ret
+