1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s -std=c++11 | FileCheck %s 2 3struct A { 4 A(); 5 A(const A&); 6 A(A&); 7 ~A(); 8}; 9 10struct B { 11 B(); 12 B(B&); 13}; 14 15struct C { 16 C() {} 17 C(C& other, A a = A()); 18 int i, j; 19}; 20 21struct POD { 22 int array[3][4]; 23}; 24 25struct D : A, B, virtual C { 26 D(); 27 int scalar; 28 int scalar_array[2][3]; 29 B class_member; 30 C class_member_array[2][3]; 31 POD pod_array[2][3]; 32 33 union { 34 int x; 35 float f[3]; 36 }; 37}; 38 39void f(D d) { 40 D d2(d); 41} 42 43// CHECK-LABEL: define linkonce_odr void @_ZN1DC1ERS_(%struct.D* %this, %struct.D* dereferenceable({{[0-9]+}})) unnamed_addr 44// CHECK: call void @_ZN1AC1Ev 45// CHECK: call void @_ZN1CC2ERS_1A 46// CHECK: call void @_ZN1AD1Ev 47// CHECK: call void @_ZN1AC2ERS_ 48// CHECK: call void @_ZN1BC2ERS_ 49// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 28}} 50// CHECK: call void @_ZN1BC1ERS_ 51// CHECK: br 52// CHECK: {{icmp ult.*, 2}} 53// CHECK: {{icmp ult.*, 3}} 54// CHECK: call void @_ZN1AC1Ev 55// CHECK: call void @_ZN1CC1ERS_1A 56// CHECK: call void @_ZN1AD1Ev 57// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 300}} 58// CHECK: ret void 59 60 61template<class T> struct X0 { void f0(T * ) { } }; 62template <class > struct X1 { X1( X1& , int = 0 ) { } }; 63struct X2 { X1<int> result; }; 64void test_X2() 65{ 66 typedef X2 impl; 67 typedef X0<impl> pimpl; 68 impl* i; 69 pimpl pdata; 70 pdata.f0( new impl(*i)); 71} 72 73// rdar://problem/9598341 74namespace test3 { 75 struct A { A(const A&); A&operator=(const A&); }; 76 struct B { A a; unsigned : 0; }; 77 void test(const B &x) { 78 B y = x; 79 y = x; 80 } 81} 82 83namespace test4 { 84 // When determining whether to implement an array copy as a memcpy, look at 85 // whether the *selected* constructor is trivial. 86 struct S { 87 int arr[5][5]; 88 S(S &); 89 S(const S &) = default; 90 }; 91 // CHECK: @_ZN5test42f1 92 void f1(S a) { 93 // CHECK-NOT: memcpy 94 // CHECK: call void @_ZN5test41SC1ERS0_ 95 // CHECK-NOT: memcpy 96 S b(a); 97 // CHECK: } 98 } 99 // CHECK: @_ZN5test42f2 100 void f2(const S a) { 101 // CHECK-NOT: call void @_ZN5test41SC1ERS0_ 102 // CHECK: memcpy 103 // CHECK-NOT: call void @_ZN5test41SC1ERS0_ 104 S b(a); 105 // CHECK: } 106 } 107} 108