test/CodeGenCXX/implicit-copy-assign-operator.cpp

   1 // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10.0.0 -o - %s | FileCheck %s
   2 struct A {
   3   A &operator=(const A&);
   4   A &operator=(A&);
   5 };
   6
   7 struct B {
   8   B &operator=(B&);
   9 };
  10
  11 struct C {
  12   virtual C& operator=(const C&);
  13 };
  14
  15 struct POD {
  16   int array[3][4];
  17 };
  18
  19 struct CopyByValue {
  20   CopyByValue(const CopyByValue&);
  21   CopyByValue &operator=(CopyByValue);
  22 };
  23
  24 struct D : A, B, virtual C {
  25   int scalar;
  26   int scalar_array[2][3];
  27   B class_member;
  28   C class_member_array[2][3];
  29   POD pod_array[2][3];
  30
  31   union {
  32     int x;
  33     float f[3];
  34   };
  35
  36   CopyByValue by_value;
  37 };
  38
  39 void test_D(D d1, D d2) {
  40   d1 = d2;
  41 }
  42
  43 // CHECK: define linkonce_odr %struct.D* @_ZN1DaSERS_
  44 // CHECK: {{call.*_ZN1AaSERS_}}
  45 // CHECK: {{call.*_ZN1BaSERS_}}
  46 // CHECK: {{call.*_ZN1CaSERKS_}}
  47 // CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
  48 // CHECK: {{call.*_ZN1BaSERS_}}
  49 // CHECK: br
  50 // CHECK: {{call.*_ZN1CaSERKS_}}
  51 // CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 288}}
  52 // CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
  53 // CHECK: call void @_ZN11CopyByValueC1ERKS_
  54 // CHECK: {{call.*_ZN11CopyByValueaSES_}}
  55 // CHECK: ret
  56