1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-darwin10 %s -emit-llvm -o %t 2 // RUN: FileCheck %s < %t 3 // RUN: FileCheck -check-prefix=CHECK-PR10720 %s < %t 4 5 extern "C" int printf(...); 6 7 struct M { 8 M() { printf("M()\n"); } 9 M(int i) { iM = i; printf("M(%d)\n", i); } 10 int iM; 11 void MPR() {printf("iM = %d\n", iM); }; 12 }; 13 14 struct P { 15 P() { printf("P()\n"); } 16 P(int i) { iP = i; printf("P(%d)\n", i); } 17 int iP; 18 void PPR() {printf("iP = %d\n", iP); }; 19 }; 20 21 struct Q { 22 Q() { printf("Q()\n"); } 23 Q(int i) { iQ = i; printf("Q(%d)\n", i); } 24 int iQ; 25 void QPR() {printf("iQ = %d\n", iQ); }; 26 }; 27 28 struct N : M , P, Q { 29 N() : f1(1.314), P(2000), ld(00.1234+f1), M(1000), Q(3000), 30 d1(3.4567), i1(1234), m1(100) { printf("N()\n"); } 31 M m1; 32 M m2; 33 float f1; 34 int i1; 35 float d1; 36 void PR() { 37 printf("f1 = %f d1 = %f i1 = %d ld = %f \n", f1,d1,i1, ld); 38 MPR(); 39 PPR(); 40 QPR(); 41 printf("iQ = %d\n", iQ); 42 printf("iP = %d\n", iP); 43 printf("iM = %d\n", iM); 44 // FIXME. We don't yet support this syntax. 45 // printf("iQ = %d\n", (*this).iQ); 46 printf("iQ = %d\n", this->iQ); 47 printf("iP = %d\n", this->iP); 48 printf("iM = %d\n", this->iM); 49 } 50 float ld; 51 float ff; 52 M arr_m[3]; 53 P arr_p[1][3]; 54 Q arr_q[2][3][4]; 55 }; 56 57 int main() { 58 M m1; 59 60 N n1; 61 n1.PR(); 62 } 63 64 // PR5826 65 template <class T> struct A { 66 A() {} 67 A(int) {} 68 A(const A&) {} 69 ~A() {} 70 operator int() {return 0;} 71 }; 72 73 // CHECK-LABEL: define void @_Z1fv() 74 void f() { 75 // CHECK: call void @_ZN1AIsEC1Ei 76 A<short> a4 = 97; 77 78 // CHECK-NEXT: store i32 17 79 int i = 17; 80 81 // CHECK-NEXT: call void @_ZN1AIsED1Ev 82 // CHECK-NOT: call void @_ZN1AIsED1Ev 83 // CHECK: ret void 84 } 85 86 // Make sure we initialize the vtable pointer if it's required by a 87 // base initializer. 88 namespace InitVTable { 89 struct A { A(int); }; 90 struct B : A { 91 virtual int foo(); 92 B(); 93 B(int); 94 }; 95 96 // CHECK-LABEL: define void @_ZN10InitVTable1BC2Ev(%"struct.InitVTable::B"* %this) unnamed_addr 97 // CHECK: [[T0:%.*]] = bitcast [[B:%.*]]* [[THIS:%.*]] to i32 (...)*** 98 // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] 99 // CHECK: [[VTBL:%.*]] = load i32 ([[B]]*)**, i32 ([[B]]*)*** {{%.*}} 100 // CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds i32 ([[B]]*)*, i32 ([[B]]*)** [[VTBL]], i64 0 101 // CHECK-NEXT: [[FN:%.*]] = load i32 ([[B]]*)*, i32 ([[B]]*)** [[FNP]] 102 // CHECK-NEXT: [[ARG:%.*]] = call i32 [[FN]]([[B]]* [[THIS]]) 103 // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]]) 104 // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* [[THIS]] to i32 (...)*** 105 // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] 106 // CHECK-NEXT: ret void 107 B::B() : A(foo()) {} 108 109 // CHECK-LABEL: define void @_ZN10InitVTable1BC2Ei(%"struct.InitVTable::B"* %this, i32 %x) unnamed_addr 110 // CHECK: [[ARG:%.*]] = add nsw i32 {{%.*}}, 5 111 // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]]) 112 // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* {{%.*}} to i32 (...)*** 113 // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] 114 // CHECK-NEXT: ret void 115 B::B(int x) : A(x + 5) {} 116 } 117 118 namespace rdar9694300 { 119 struct X { 120 int x; 121 }; 122 123 // CHECK-LABEL: define void @_ZN11rdar96943001fEv 124 void f() { 125 // CHECK: alloca 126 X x; 127 // CHECK-NEXT: [[I:%.*]] = alloca i32 128 // CHECK-NEXT: store i32 17, i32* [[I]] 129 int i = 17; 130 // CHECK-NEXT: ret void 131 } 132 } 133 134 // Check that we emit a zero initialization step for list-value-initialization 135 // which calls a trivial default constructor. 136 namespace PR13273 { 137 struct U { 138 int t; 139 U() = default; 140 }; 141 142 struct S : U { 143 S() = default; 144 }; 145 146 // CHECK: define {{.*}}@_ZN7PR132731fEv( 147 int f() { 148 // CHECK-NOT: } 149 // CHECK: llvm.memset{{.*}}i8 0 150 return (new S{})->t; 151 } 152 } 153 154 template<typename T> 155 struct X { 156 X(const X &); 157 158 T *start; 159 T *end; 160 }; 161 162 template<typename T> struct X; 163 164 // Make sure that the instantiated constructor initializes start and 165 // end properly. 166 // CHECK-LABEL: define linkonce_odr void @_ZN1XIiEC2ERKS0_(%struct.X* %this, %struct.X* dereferenceable({{[0-9]+}}) %other) unnamed_addr 167 // CHECK: {{store.*null}} 168 // CHECK: {{store.*null}} 169 // CHECK: ret 170 template<typename T> 171 X<T>::X(const X &other) : start(0), end(0) { } 172 173 X<int> get_X(X<int> x) { return x; } 174 175 namespace PR10720 { 176 struct X { 177 X(const X&); 178 X(X&&); 179 X& operator=(const X&); 180 X& operator=(X&&); 181 ~X(); 182 }; 183 184 struct pair2 { 185 X second[4]; 186 187 // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSERKS0_ 188 // CHECK-PR10720: load 189 // CHECK-PR10720: icmp ne 190 // CHECK-PR10720-NEXT: br i1 191 // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSERKS0_ 192 // CHECK-PR10720: ret 193 pair2 &operator=(const pair2&) = default; 194 195 // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSEOS0_ 196 // CHECK-PR10720: load 197 // CHECK-PR10720: icmp ne 198 // CHECK-PR10720-NEXT: br i1 199 // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSEOS0_ 200 // CHECK-PR10720: ret 201 pair2 &operator=(pair2&&) = default; 202 203 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107204pairC2ERKS0_ 204 // CHECK-PR10720-NOT: ret 205 // CHECK-PR10720: call void @llvm.memcpy 206 // CHECK-PR10720-NEXT: ret void 207 208 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2ERKS0_ 209 // CHECK-PR10720-NOT: ret 210 // CHECK-PR10720: load 211 // CHECK-PR10720: icmp ult 212 // CHECK-PR10720-NEXT: br i1 213 // CHECK-PR10720: call void @_ZN7PR107201XC1ERKS0_ 214 // CHECK-PR10720-NEXT: br label 215 // CHECK-PR10720: ret void 216 217 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2EOS0_ 218 // CHECK-PR10720-NOT: ret 219 // CHECK-PR10720: load 220 // CHECK-PR10720: icmp ult 221 // CHECK-PR10720-NEXT: br i1 222 // CHECK-PR10720: call void @_ZN7PR107201XC1EOS0_ 223 // CHECK-PR10720-NEXT: br label 224 // CHECK-PR10720: ret void 225 pair2(pair2&&) = default; 226 227 pair2(const pair2&) = default; 228 }; 229 230 struct pair : X { // Make the copy constructor non-trivial, so we actually generate it. 231 int second[4]; 232 pair(const pair&) = default; 233 }; 234 235 void foo(const pair &x, const pair2 &x2) { 236 pair y(x); 237 pair2 y2(x2); 238 pair2 y2m(static_cast<pair2&&>(y2)); 239 240 y2 = x2; 241 y2m = static_cast<pair2&&>(y2); 242 } 243 244 } 245
