1 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions | FileCheck %s 2 3 // Test IR generation for partial destruction of aggregates. 4 5 void opaque(); 6 7 // Initializer lists. 8 namespace test0 { 9 struct A { A(int); A(); ~A(); void *v; }; 10 void test() { 11 A as[10] = { 5, 7 }; 12 opaque(); 13 } 14 // CHECK-LABEL: define void @_ZN5test04testEv() 15 // CHECK-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 16 // CHECK: [[AS:%.*]] = alloca [10 x [[A:%.*]]], align 17 // CHECK-NEXT: [[ENDVAR:%.*]] = alloca [[A]]* 18 // CHECK-NEXT: [[EXN:%.*]] = alloca i8* 19 // CHECK-NEXT: [[SEL:%.*]] = alloca i32 20 21 // Initialize. 22 // CHECK-NEXT: [[E_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]], [10 x [[A]]]* [[AS]], i64 0, i64 0 23 // CHECK-NEXT: store [[A]]* [[E_BEGIN]], [[A]]** [[ENDVAR]] 24 // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E_BEGIN]], i32 5) 25 // CHECK: [[E1:%.*]] = getelementptr inbounds [[A]], [[A]]* [[E_BEGIN]], i64 1 26 // CHECK-NEXT: store [[A]]* [[E1]], [[A]]** [[ENDVAR]] 27 // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E1]], i32 7) 28 // CHECK: [[E2:%.*]] = getelementptr inbounds [[A]], [[A]]* [[E1]], i64 1 29 // CHECK-NEXT: store [[A]]* [[E2]], [[A]]** [[ENDVAR]] 30 // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[E_BEGIN]], i64 10 31 // CHECK-NEXT: br label 32 // CHECK: [[E_CUR:%.*]] = phi [[A]]* [ [[E2]], {{%.*}} ], [ [[E_NEXT:%.*]], {{%.*}} ] 33 // CHECK-NEXT: invoke void @_ZN5test01AC1Ev([[A]]* [[E_CUR]]) 34 // CHECK: [[E_NEXT]] = getelementptr inbounds [[A]], [[A]]* [[E_CUR]], i64 1 35 // CHECK-NEXT: store [[A]]* [[E_NEXT]], [[A]]** [[ENDVAR]] 36 // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_NEXT]], [[E_END]] 37 // CHECK-NEXT: br i1 [[T0]], 38 39 // Run. 40 // CHECK: invoke void @_Z6opaquev() 41 42 // Normal destroy. 43 // CHECK: [[ED_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]], [10 x [[A]]]* [[AS]], i32 0, i32 0 44 // CHECK-NEXT: [[ED_END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[ED_BEGIN]], i64 10 45 // CHECK-NEXT: br label 46 // CHECK: [[ED_AFTER:%.*]] = phi [[A]]* [ [[ED_END]], {{%.*}} ], [ [[ED_CUR:%.*]], {{%.*}} ] 47 // CHECK-NEXT: [[ED_CUR]] = getelementptr inbounds [[A]], [[A]]* [[ED_AFTER]], i64 -1 48 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[ED_CUR]]) 49 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_CUR]], [[ED_BEGIN]] 50 // CHECK-NEXT: br i1 [[T0]], 51 // CHECK: ret void 52 53 // Partial destroy for initialization. 54 // CHECK: landingpad { i8*, i32 } 55 // CHECK-NEXT: cleanup 56 // CHECK: [[PARTIAL_END:%.*]] = load [[A]]*, [[A]]** [[ENDVAR]] 57 // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_BEGIN]], [[PARTIAL_END]] 58 // CHECK-NEXT: br i1 [[T0]], 59 // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[PARTIAL_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] 60 // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]], [[A]]* [[E_AFTER]], i64 -1 61 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) 62 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E_BEGIN]] 63 // CHECK-NEXT: br i1 [[T0]], 64 65 // Primary EH destructor. 66 // CHECK: landingpad { i8*, i32 } 67 // CHECK-NEXT: cleanup 68 // CHECK: [[E0:%.*]] = getelementptr inbounds [10 x [[A]]], [10 x [[A]]]* [[AS]], i32 0, i32 0 69 // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[E0]], i64 10 70 // CHECK-NEXT: br label 71 72 // Partial destructor for primary normal destructor. 73 // FIXME: There's some really bad block ordering here which causes 74 // the partial destroy for the primary normal destructor to fall 75 // within the primary EH destructor. 76 // CHECK: landingpad { i8*, i32 } 77 // CHECK-NEXT: cleanup 78 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_BEGIN]], [[ED_CUR]] 79 // CHECK-NEXT: br i1 [[T0]] 80 // CHECK: [[EDD_AFTER:%.*]] = phi [[A]]* [ [[ED_CUR]], {{%.*}} ], [ [[EDD_CUR:%.*]], {{%.*}} ] 81 // CHECK-NEXT: [[EDD_CUR]] = getelementptr inbounds [[A]], [[A]]* [[EDD_AFTER]], i64 -1 82 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[EDD_CUR]]) 83 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[EDD_CUR]], [[ED_BEGIN]] 84 // CHECK-NEXT: br i1 [[T0]] 85 86 // Back to the primary EH destructor. 87 // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[E_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] 88 // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]], [[A]]* [[E_AFTER]], i64 -1 89 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) 90 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E0]] 91 // CHECK-NEXT: br i1 [[T0]], 92 93 } 94 95 namespace test1 { 96 struct A { A(); A(int); ~A(); }; 97 struct B { A x, y, z; int w; }; 98 99 void test() { 100 B v = { 5, 6, 7, 8 }; 101 } 102 // CHECK-LABEL: define void @_ZN5test14testEv() 103 // CHECK-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 104 // CHECK: [[V:%.*]] = alloca [[B:%.*]], align 4 105 // CHECK-NEXT: alloca i8* 106 // CHECK-NEXT: alloca i32 107 // CHECK-NEXT: [[X:%.*]] = getelementptr inbounds [[B]], [[B]]* [[V]], i32 0, i32 0 108 // CHECK-NEXT: call void @_ZN5test11AC1Ei([[A:%.*]]* [[X]], i32 5) 109 // CHECK-NEXT: [[Y:%.*]] = getelementptr inbounds [[B]], [[B]]* [[V]], i32 0, i32 1 110 // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Y]], i32 6) 111 // CHECK: [[Z:%.*]] = getelementptr inbounds [[B]], [[B]]* [[V]], i32 0, i32 2 112 // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Z]], i32 7) 113 // CHECK: [[W:%.*]] = getelementptr inbounds [[B]], [[B]]* [[V]], i32 0, i32 3 114 // CHECK-NEXT: store i32 8, i32* [[W]], align 4 115 // CHECK-NEXT: call void @_ZN5test11BD1Ev([[B]]* [[V]]) 116 // CHECK-NEXT: ret void 117 118 // FIXME: again, the block ordering is pretty bad here 119 // CHECK: landingpad { i8*, i32 } 120 // CHECK-NEXT: cleanup 121 // CHECK: landingpad { i8*, i32 } 122 // CHECK-NEXT: cleanup 123 // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[Y]]) 124 // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[X]]) 125 } 126 127 namespace test2 { 128 struct A { A(); ~A(); }; 129 130 void test() { 131 A v[4][7]; 132 133 // CHECK-LABEL: define void @_ZN5test24testEv() 134 // CHECK-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 135 // CHECK: [[V:%.*]] = alloca [4 x [7 x [[A:%.*]]]], align 1 136 // CHECK-NEXT: alloca i8* 137 // CHECK-NEXT: alloca i32 138 139 // Main initialization loop. 140 // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x [7 x [[A]]]], [4 x [7 x [[A]]]]* [[V]], i32 0, i32 0, i32 0 141 // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[BEGIN]], i64 28 142 // CHECK-NEXT: br label 143 // CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ] 144 // CHECK-NEXT: invoke void @_ZN5test21AC1Ev([[A]]* [[CUR]]) 145 // CHECK: [[NEXT:%.*]] = getelementptr inbounds [[A]], [[A]]* [[CUR]], i64 1 146 // CHECK-NEXT: [[DONE:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]] 147 // CHECK-NEXT: br i1 [[DONE]], 148 149 // Partial destruction landing pad. 150 // CHECK: landingpad { i8*, i32 } 151 // CHECK-NEXT: cleanup 152 // CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[CUR]] 153 // CHECK-NEXT: br i1 [[EMPTY]], 154 // CHECK: [[PAST:%.*]] = phi [[A]]* [ [[CUR]], {{%.*}} ], [ [[DEL:%.*]], {{%.*}} ] 155 // CHECK-NEXT: [[DEL]] = getelementptr inbounds [[A]], [[A]]* [[PAST]], i64 -1 156 // CHECK-NEXT: invoke void @_ZN5test21AD1Ev([[A]]* [[DEL]]) 157 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[DEL]], [[BEGIN]] 158 // CHECK-NEXT: br i1 [[T0]], 159 } 160 161 } 162 163 // PR10351 164 namespace test3 { 165 struct A { A(); ~A(); void *p; }; 166 struct B { 167 B() {} 168 A a; 169 }; 170 171 B *test() { 172 return new B[10]; 173 // invoke void @_ZN5test31BD1Ev( 174 } 175 } 176 177 namespace test4 { 178 struct A { A(unsigned i); ~A(); }; 179 void test() { 180 A v[2][3] = { { A(0), A(1), A(2) }, { A(3), A(4), A(5) } }; 181 } 182 } 183 // CHECK-LABEL: define void @_ZN5test44testEv() 184 // CHECK: [[ARRAY:%.*]] = alloca [2 x [3 x [[A:%.*]]]], align 185 // CHECK: [[A0:%.*]] = getelementptr inbounds [2 x [3 x [[A]]]], [2 x [3 x [[A]]]]* [[ARRAY]], i64 0, i64 0 186 // CHECK-NEXT: store [3 x [[A]]]* [[A0]], 187 // CHECK-NEXT: [[A00:%.*]] = getelementptr inbounds [3 x [[A]]], [3 x [[A]]]* [[A0]], i64 0, i64 0 188 // CHECK-NEXT: store [[A]]* [[A00]], 189 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A00]], i32 0) 190 // CHECK: [[A01:%.*]] = getelementptr inbounds [[A]], [[A]]* [[A00]], i64 1 191 // CHECK-NEXT: store [[A]]* [[A01]], 192 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A01]], i32 1) 193 // CHECK: [[A02:%.*]] = getelementptr inbounds [[A]], [[A]]* [[A01]], i64 1 194 // CHECK-NEXT: store [[A]]* [[A02]], 195 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A02]], i32 2) 196 // CHECK: [[A1:%.*]] = getelementptr inbounds [3 x [[A]]], [3 x [[A]]]* [[A0]], i64 1 197 // CHECK-NEXT: store [3 x [[A]]]* [[A1]], 198 // CHECK-NEXT: [[A10:%.*]] = getelementptr inbounds [3 x [[A]]], [3 x [[A]]]* [[A1]], i64 0, i64 0 199 // CHECK-NEXT: store [[A]]* [[A10]], 200 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A10]], i32 3) 201 // CHECK: [[A11:%.*]] = getelementptr inbounds [[A]], [[A]]* [[A10]], i64 1 202 // CHECK-NEXT: store [[A]]* [[A11]], 203 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A11]], i32 4) 204 // CHECK: [[A12:%.*]] = getelementptr inbounds [[A]], [[A]]* [[A11]], i64 1 205 // CHECK-NEXT: store [[A]]* [[A12]], 206 // CHECK-NEXT: invoke void @_ZN5test41AC1Ej([[A]]* [[A12]], i32 5) 207