| 1 | // RUN: %clang_cc1 %s -emit-llvm -o %t.ll -triple=x86_64-apple-darwin10 |
| 2 | // RUN: FileCheck %s < %t.ll |
| 3 | // RUN: FileCheck -check-prefix=CHECK-GLOBAL %s < %t.ll |
| 4 | |
| 5 | struct A { int a; int b; }; |
| 6 | struct B { int b; }; |
| 7 | struct C : B, A { }; |
| 8 | |
| 9 | // Zero init. |
| 10 | namespace ZeroInit { |
| 11 | // CHECK-GLOBAL: @_ZN8ZeroInit1aE = global i64 -1 |
| 12 | int A::* a; |
| 13 | |
| 14 | // CHECK-GLOBAL: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1] |
| 15 | int A::* aa[2]; |
| 16 | |
| 17 | // CHECK-GLOBAL: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]] |
| 18 | int A::* aaa[2][2]; |
| 19 | |
| 20 | // CHECK-GLOBAL: @_ZN8ZeroInit1bE = global i64 -1, |
| 21 | int A::* b = 0; |
| 22 | |
| 23 | // CHECK-GLOBAL: @_ZN8ZeroInit2saE = internal global %struct.anon { i64 -1 } |
| 24 | struct { |
| 25 | int A::*a; |
| 26 | } sa; |
| 27 | void test_sa() { (void) sa; } // force emission |
| 28 | |
| 29 | // CHECK-GLOBAL: @_ZN8ZeroInit3ssaE = internal |
| 30 | // CHECK-GLOBAL: [2 x i64] [i64 -1, i64 -1] |
| 31 | struct { |
| 32 | int A::*aa[2]; |
| 33 | } ssa[2]; |
| 34 | void test_ssa() { (void) ssa; } |
| 35 | |
| 36 | // CHECK-GLOBAL: @_ZN8ZeroInit2ssE = internal global %struct.anon.1 { %struct.anon.2 { i64 -1 } } |
| 37 | struct { |
| 38 | struct { |
| 39 | int A::*pa; |
| 40 | } s; |
| 41 | } ss; |
| 42 | void test_ss() { (void) ss; } |
| 43 | |
| 44 | struct A { |
| 45 | int A::*a; |
| 46 | int b; |
| 47 | }; |
| 48 | |
| 49 | struct B { |
| 50 | A a[10]; |
| 51 | char c; |
| 52 | int B::*b; |
| 53 | }; |
| 54 | |
| 55 | struct C : A, B { int j; }; |
| 56 | // CHECK-GLOBAL: @_ZN8ZeroInit1cE = global {{%.*}} <{ %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::B" { [10 x %"struct.ZeroInit::A"] [%"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }], i8 0, i64 -1 }, i32 0, [4 x i8] zeroinitializer }>, align 8 |
| 57 | C c; |
| 58 | } |
| 59 | |
| 60 | // PR5674 |
| 61 | namespace PR5674 { |
| 62 | // CHECK-GLOBAL: @_ZN6PR56742pbE = global i64 4 |
| 63 | int A::*pb = &A::b; |
| 64 | } |
| 65 | |
| 66 | // Casts. |
| 67 | namespace Casts { |
| 68 | |
| 69 | int A::*pa; |
| 70 | int C::*pc; |
| 71 | |
| 72 | void f() { |
| 73 | // CHECK: store i64 -1, i64* @_ZN5Casts2paE |
| 74 | pa = 0; |
| 75 | |
| 76 | // CHECK-NEXT: [[TMP:%.*]] = load i64, i64* @_ZN5Casts2paE, align 8 |
| 77 | // CHECK-NEXT: [[ADJ:%.*]] = add nsw i64 [[TMP]], 4 |
| 78 | // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1 |
| 79 | // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]] |
| 80 | // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2pcE |
| 81 | pc = pa; |
| 82 | |
| 83 | // CHECK-NEXT: [[TMP:%.*]] = load i64, i64* @_ZN5Casts2pcE, align 8 |
| 84 | // CHECK-NEXT: [[ADJ:%.*]] = sub nsw i64 [[TMP]], 4 |
| 85 | // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1 |
| 86 | // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]] |
| 87 | // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2paE |
| 88 | pa = static_cast<int A::*>(pc); |
| 89 | } |
| 90 | |
| 91 | } |
| 92 | |
| 93 | // Comparisons |
| 94 | namespace Comparisons { |
| 95 | void f() { |
| 96 | int A::*a; |
| 97 | |
| 98 | // CHECK: icmp ne i64 {{.*}}, -1 |
| 99 | if (a) { } |
| 100 | |
| 101 | // CHECK: icmp ne i64 {{.*}}, -1 |
| 102 | if (a != 0) { } |
| 103 | |
| 104 | // CHECK: icmp ne i64 -1, {{.*}} |
| 105 | if (0 != a) { } |
| 106 | |
| 107 | // CHECK: icmp eq i64 {{.*}}, -1 |
| 108 | if (a == 0) { } |
| 109 | |
| 110 | // CHECK: icmp eq i64 -1, {{.*}} |
| 111 | if (0 == a) { } |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | namespace ValueInit { |
| 116 | |
| 117 | struct A { |
| 118 | int A::*a; |
| 119 | |
| 120 | char c; |
| 121 | |
| 122 | A(); |
| 123 | }; |
| 124 | |
| 125 | // CHECK-LABEL: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr |
| 126 | // CHECK: store i64 -1, i64* |
| 127 | // CHECK: ret void |
| 128 | A::A() : a() {} |
| 129 | |
| 130 | } |
| 131 | |
| 132 | namespace VirtualBases { |
| 133 | |
| 134 | struct A { |
| 135 | char c; |
| 136 | int A::*i; |
| 137 | }; |
| 138 | |
| 139 | // CHECK-GLOBAL: @_ZN12VirtualBases1bE = global %"struct.VirtualBases::B" { i32 (...)** null, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
| 140 | struct B : virtual A { }; |
| 141 | B b; |
| 142 | |
| 143 | // CHECK-GLOBAL: @_ZN12VirtualBases1cE = global %"struct.VirtualBases::C" { i32 (...)** null, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
| 144 | struct C : virtual A { int A::*i; }; |
| 145 | C c; |
| 146 | |
| 147 | // CHECK-GLOBAL: @_ZN12VirtualBases1dE = global %"struct.VirtualBases::D" { %"struct.VirtualBases::C.base" { i32 (...)** null, i64 -1 }, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
| 148 | struct D : C { int A::*i; }; |
| 149 | D d; |
| 150 | |
| 151 | } |
| 152 | |
| 153 | namespace Test1 { |
| 154 | |
| 155 | // Don't crash when A contains a bit-field. |
| 156 | struct A { |
| 157 | int A::* a; |
| 158 | int b : 10; |
| 159 | }; |
| 160 | A a; |
| 161 | |
| 162 | } |
| 163 | |
| 164 | namespace BoolPtrToMember { |
| 165 | struct X { |
| 166 | bool member; |
| 167 | }; |
| 168 | |
| 169 | // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b |
| 170 | bool &f(X &x, bool X::*member) { |
| 171 | // CHECK: {{bitcast.* to i8\*}} |
| 172 | // CHECK-NEXT: getelementptr inbounds i8, i8* |
| 173 | // CHECK-NEXT: ret i8* |
| 174 | return x.*member; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | namespace PR8507 { |
| 179 | |
| 180 | struct S; |
| 181 | void f(S* p, double S::*pm) { |
| 182 | if (0 < p->*pm) { |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | } |
| 187 | |
| 188 | namespace test4 { |
| 189 | struct A { int A_i; }; |
| 190 | struct B : virtual A { int A::*B_p; }; |
| 191 | struct C : virtual B { int *C_p; }; |
| 192 | struct D : C { int *D_p; }; |
| 193 | |
| 194 | // CHECK-GLOBAL: @_ZN5test41dE = global %"struct.test4::D" { %"struct.test4::C.base" zeroinitializer, i32* null, %"struct.test4::B.base" { i32 (...)** null, i64 -1 }, %"struct.test4::A" zeroinitializer }, align 8 |
| 195 | D d; |
| 196 | } |
| 197 | |
| 198 | namespace PR11487 { |
| 199 | union U |
| 200 | { |
| 201 | int U::* mptr; |
| 202 | char x[16]; |
| 203 | } x; |
| 204 | // CHECK-GLOBAL: @_ZN7PR114871xE = global %"union.PR11487::U" { i64 -1, [8 x i8] zeroinitializer }, align 8 |
| 205 | |
| 206 | } |
| 207 | |
| 208 | namespace PR13097 { |
| 209 | struct X { int x; X(const X&); }; |
| 210 | struct A { |
| 211 | int qq; |
| 212 | X x; |
| 213 | }; |
| 214 | A f(); |
| 215 | X g() { return f().*&A::x; } |
| 216 | // CHECK-LABEL: define void @_ZN7PR130971gEv |
| 217 | // CHECK: call void @_ZN7PR130971fEv |
| 218 | // CHECK-NOT: memcpy |
| 219 | // CHECK: call void @_ZN7PR130971XC1ERKS0_ |
| 220 | } |
| 221 | |
| 222 | namespace PR21089 { |
| 223 | struct A { |
| 224 | bool : 1; |
| 225 | int A::*x; |
| 226 | bool y; |
| 227 | A(); |
| 228 | }; |
| 229 | struct B : A { |
| 230 | }; |
| 231 | B b; |
| 232 | // CHECK-GLOBAL: @_ZN7PR210891bE = global %"struct.PR21089::B" { %"struct.PR21089::A.base" <{ i8 0, [7 x i8] zeroinitializer, i64 -1, i8 0 }>, [7 x i8] zeroinitializer }, align 8 |
| 233 | } |
| 234 | |
| 235 | namespace PR21282 { |
| 236 | union U { |
| 237 | int U::*x; |
| 238 | long y[2]; |
| 239 | }; |
| 240 | U u; |
| 241 | // CHECK-GLOBAL: @_ZN7PR212821uE = global %"union.PR21282::U" { i64 -1, [8 x i8] zeroinitializer }, align 8 |
| 242 | } |
| 243 | |
| 244 | namespace FlexibleArrayMember { |
| 245 | struct S { |
| 246 | int S::*x[]; |
| 247 | }; |
| 248 | S s; |
| 249 | // CHECK-GLOBAL: @_ZN19FlexibleArrayMember1sE = global %"struct.FlexibleArrayMember::S" zeroinitializer, align 8 |
| 250 | } |
| 251 | |
| 252 | namespace IndirectPDM { |
| 253 | union U { |
| 254 | union { |
| 255 | int U::*m; |
| 256 | }; |
| 257 | }; |
| 258 | U u; |
| 259 | // CHECK-GLOBAL: @_ZN11IndirectPDM1uE = global %"union.IndirectPDM::U" { %union.anon { i64 -1 } }, align 8 |
| 260 | } |
| 261 | |