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: [[AS:%.*]] = alloca [10 x [[A:%.*]]], align 16 // CHECK-NEXT: [[ENDVAR:%.*]] = alloca [[A]]* 17 // CHECK-NEXT: [[EXN:%.*]] = alloca i8* 18 // CHECK-NEXT: [[SEL:%.*]] = alloca i32 19 20 // Initialize. 21 // CHECK-NEXT: [[E_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i64 0, i64 0 22 // CHECK-NEXT: store [[A]]* [[E_BEGIN]], [[A]]** [[ENDVAR]] 23 // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E_BEGIN]], i32 5) 24 // CHECK: [[E1:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 1 25 // CHECK-NEXT: store [[A]]* [[E1]], [[A]]** [[ENDVAR]] 26 // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E1]], i32 7) 27 // CHECK: [[E2:%.*]] = getelementptr inbounds [[A]]* [[E1]], i64 1 28 // CHECK-NEXT: store [[A]]* [[E2]], [[A]]** [[ENDVAR]] 29 // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 10 30 // CHECK-NEXT: br label 31 // CHECK: [[E_CUR:%.*]] = phi [[A]]* [ [[E2]], {{%.*}} ], [ [[E_NEXT:%.*]], {{%.*}} ] 32 // CHECK-NEXT: invoke void @_ZN5test01AC1Ev([[A]]* [[E_CUR]]) 33 // CHECK: [[E_NEXT]] = getelementptr inbounds [[A]]* [[E_CUR]], i64 1 34 // CHECK-NEXT: store [[A]]* [[E_NEXT]], [[A]]** [[ENDVAR]] 35 // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_NEXT]], [[E_END]] 36 // CHECK-NEXT: br i1 [[T0]], 37 38 // Run. 39 // CHECK: invoke void @_Z6opaquev() 40 41 // Normal destroy. 42 // CHECK: [[ED_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0 43 // CHECK-NEXT: [[ED_END:%.*]] = getelementptr inbounds [[A]]* [[ED_BEGIN]], i64 10 44 // CHECK-NEXT: br label 45 // CHECK: [[ED_AFTER:%.*]] = phi [[A]]* [ [[ED_END]], {{%.*}} ], [ [[ED_CUR:%.*]], {{%.*}} ] 46 // CHECK-NEXT: [[ED_CUR]] = getelementptr inbounds [[A]]* [[ED_AFTER]], i64 -1 47 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[ED_CUR]]) 48 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_CUR]], [[ED_BEGIN]] 49 // CHECK-NEXT: br i1 [[T0]], 50 // CHECK: ret void 51 52 // Partial destroy for initialization. 53 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 54 // CHECK-NEXT: cleanup 55 // CHECK: [[PARTIAL_END:%.*]] = load [[A]]** [[ENDVAR]] 56 // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_BEGIN]], [[PARTIAL_END]] 57 // CHECK-NEXT: br i1 [[T0]], 58 // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[PARTIAL_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] 59 // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1 60 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) 61 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E_BEGIN]] 62 // CHECK-NEXT: br i1 [[T0]], 63 64 // Primary EH destructor. 65 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 66 // CHECK-NEXT: cleanup 67 // CHECK: [[E0:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0 68 // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E0]], i64 10 69 // CHECK-NEXT: br label 70 71 // Partial destructor for primary normal destructor. 72 // FIXME: There's some really bad block ordering here which causes 73 // the partial destroy for the primary normal destructor to fall 74 // within the primary EH destructor. 75 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 76 // CHECK-NEXT: cleanup 77 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_BEGIN]], [[ED_CUR]] 78 // CHECK-NEXT: br i1 [[T0]] 79 // CHECK: [[EDD_AFTER:%.*]] = phi [[A]]* [ [[ED_CUR]], {{%.*}} ], [ [[EDD_CUR:%.*]], {{%.*}} ] 80 // CHECK-NEXT: [[EDD_CUR]] = getelementptr inbounds [[A]]* [[EDD_AFTER]], i64 -1 81 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[EDD_CUR]]) 82 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[EDD_CUR]], [[ED_BEGIN]] 83 // CHECK-NEXT: br i1 [[T0]] 84 85 // Back to the primary EH destructor. 86 // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[E_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] 87 // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1 88 // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) 89 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E0]] 90 // CHECK-NEXT: br i1 [[T0]], 91 92 } 93 94 namespace test1 { 95 struct A { A(); A(int); ~A(); }; 96 struct B { A x, y, z; int w; }; 97 98 void test() { 99 B v = { 5, 6, 7, 8 }; 100 } 101 // CHECK-LABEL: define void @_ZN5test14testEv() 102 // CHECK: [[V:%.*]] = alloca [[B:%.*]], align 4 103 // CHECK-NEXT: alloca i8* 104 // CHECK-NEXT: alloca i32 105 // CHECK-NEXT: [[X:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 0 106 // CHECK-NEXT: call void @_ZN5test11AC1Ei([[A:%.*]]* [[X]], i32 5) 107 // CHECK-NEXT: [[Y:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 1 108 // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Y]], i32 6) 109 // CHECK: [[Z:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 2 110 // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Z]], i32 7) 111 // CHECK: [[W:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 3 112 // CHECK-NEXT: store i32 8, i32* [[W]], align 4 113 // CHECK-NEXT: call void @_ZN5test11BD1Ev([[B]]* [[V]]) 114 // CHECK-NEXT: ret void 115 116 // FIXME: again, the block ordering is pretty bad here 117 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 118 // CHECK-NEXT: cleanup 119 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 120 // CHECK-NEXT: cleanup 121 // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[Y]]) 122 // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[X]]) 123 } 124 125 namespace test2 { 126 struct A { A(); ~A(); }; 127 128 void test() { 129 A v[4][7]; 130 131 // CHECK-LABEL: define void @_ZN5test24testEv() 132 // CHECK: [[V:%.*]] = alloca [4 x [7 x [[A:%.*]]]], align 1 133 // CHECK-NEXT: alloca i8* 134 // CHECK-NEXT: alloca i32 135 136 // Main initialization loop. 137 // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x [7 x [[A]]]]* [[V]], i32 0, i32 0, i32 0 138 // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 28 139 // CHECK-NEXT: br label 140 // CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ] 141 // CHECK-NEXT: invoke void @_ZN5test21AC1Ev([[A]]* [[CUR]]) 142 // CHECK: [[NEXT:%.*]] = getelementptr inbounds [[A]]* [[CUR]], i64 1 143 // CHECK-NEXT: [[DONE:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]] 144 // CHECK-NEXT: br i1 [[DONE]], 145 146 // Partial destruction landing pad. 147 // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 148 // CHECK-NEXT: cleanup 149 // CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[CUR]] 150 // CHECK-NEXT: br i1 [[EMPTY]], 151 // CHECK: [[PAST:%.*]] = phi [[A]]* [ [[CUR]], {{%.*}} ], [ [[DEL:%.*]], {{%.*}} ] 152 // CHECK-NEXT: [[DEL]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1 153 // CHECK-NEXT: invoke void @_ZN5test21AD1Ev([[A]]* [[DEL]]) 154 // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[DEL]], [[BEGIN]] 155 // CHECK-NEXT: br i1 [[T0]], 156 } 157 158 } 159 160 // PR10351 161 namespace test3 { 162 struct A { A(); ~A(); void *p; }; 163 struct B { 164 B() {} 165 A a; 166 }; 167 168 B *test() { 169 return new B[10]; 170 // invoke void @_ZN5test31BD1Ev( 171 } 172 } 173
