| 1 | // RUN: %clang_cc1 -std=c++11 -triple armv7-none-eabi -emit-llvm -o - %s | FileCheck %s |
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| 2 | |
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| 3 | struct X { |
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| 4 | X(); |
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| 5 | X(const X&); |
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| 6 | X(const char*); |
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| 7 | ~X(); |
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| 8 | }; |
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| 9 | |
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| 10 | struct Y { |
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| 11 | int i; |
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| 12 | X x; |
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| 13 | }; |
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| 14 | |
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| 15 | // CHECK: @.compoundliteral = internal global [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5], align 4 |
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| 16 | // CHECK: @q = global i32* getelementptr inbounds ([5 x i32], [5 x i32]* @.compoundliteral, i32 0, i32 0), align 4 |
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| 17 | |
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| 18 | // CHECK-LABEL: define i32 @_Z1fv() |
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| 19 | int f() { |
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| 20 | // CHECK: [[LVALUE:%[a-z0-9.]+]] = alloca |
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| 21 | // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}}, {{.*}}* [[LVALUE]], i32 0, i32 0 |
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| 22 | // CHECK-NEXT: store i32 17, i32* [[I]] |
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| 23 | // CHECK-NEXT: [[X:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 1 |
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| 24 | // CHECK-NEXT: call %struct.X* @_ZN1XC1EPKc({{.*}}[[X]] |
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| 25 | // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 0 |
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| 26 | // CHECK-NEXT: [[RESULT:%[a-z0-9]+]] = load i32, i32* |
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| 27 | // CHECK-NEXT: call %struct.Y* @_ZN1YD1Ev |
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| 28 | // CHECK-NEXT: ret i32 [[RESULT]] |
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| 29 | return ((Y){17, "seventeen"}).i; |
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| 30 | } |
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| 31 | |
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| 32 | // CHECK-LABEL: define i32 @_Z1gv() |
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| 33 | int g() { |
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| 34 | // CHECK: store [2 x i32]* %{{[a-z0-9.]+}}, [2 x i32]** [[V:%[a-z0-9.]+]] |
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| 35 | const int (&v)[2] = (int [2]) {1,2}; |
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| 36 | |
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| 37 | // CHECK: [[A:%[a-z0-9.]+]] = load [2 x i32]*, [2 x i32]** [[V]] |
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| 38 | // CHECK-NEXT: [[A0ADDR:%[a-z0-9.]+]] = getelementptr inbounds [2 x i32], [2 x i32]* [[A]], i32 0, {{.*}} 0 |
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| 39 | // CHECK-NEXT: [[A0:%[a-z0-9.]+]] = load i32, i32* [[A0ADDR]] |
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| 40 | // CHECK-NEXT: ret i32 [[A0]] |
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| 41 | return v[0]; |
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| 42 | } |
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| 43 | |
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| 44 | // GCC's compound-literals-in-C++ extension lifetime-extends a compound literal |
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| 45 | // (or a C++11 list-initialized temporary!) if: |
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| 46 | // - it is at global scope |
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| 47 | // - it has array type |
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| 48 | // - it has a constant initializer |
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| 49 | |
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| 50 | struct Z { int i[3]; }; |
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| 51 | int *p = (Z){ {1, 2, 3} }.i; |
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| 52 | // CHECK: define {{.*}}__cxx_global_var_init() |
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| 53 | // CHECK: alloca %struct.Z |
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| 54 | // CHECK: store i32* %{{.*}}, i32** @p |
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| 55 | |
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| 56 | int *q = (int [5]){1, 2, 3, 4, 5}; |
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| 57 | // (constant initialization, checked above) |
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| 58 | |
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| 59 | extern int n; |
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| 60 | int *r = (int [5]){1, 2, 3, 4, 5} + n; |
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| 61 | // CHECK-LABEL: define {{.*}}__cxx_global_var_init.1() |
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| 62 | // CHECK: %[[PTR:.*]] = getelementptr inbounds i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @.compoundliteral.2, i32 0, i32 0), i32 % |
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| 63 | // CHECK: store i32* %[[PTR]], i32** @r |
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| 64 | |
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| 65 | int *PR21912_1 = (int []){} + n; |
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| 66 | // CHECK-LABEL: define {{.*}}__cxx_global_var_init.3() |
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| 67 | // CHECK: %[[PTR:.*]] = getelementptr inbounds i32, i32* getelementptr inbounds ([0 x i32], [0 x i32]* @.compoundliteral.4, i32 0, i32 0), i32 % |
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| 68 | // CHECK: store i32* %[[PTR]], i32** @PR21912_1 |
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| 69 | |
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| 70 | union PR21912Ty { |
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| 71 | long long l; |
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| 72 | double d; |
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| 73 | }; |
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| 74 | union PR21912Ty *PR21912_2 = (union PR21912Ty[]){{.d = 2.0}, {.l = 3}} + n; |
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| 75 | // CHECK-LABEL: define {{.*}}__cxx_global_var_init.5() |
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| 76 | // CHECK: %[[PTR:.*]] = getelementptr inbounds %union.PR21912Ty, %union.PR21912Ty* getelementptr inbounds ([2 x %union.PR21912Ty], [2 x %union.PR21912Ty]* bitcast (<{ { double }, %union.PR21912Ty }>* @.compoundliteral.6 to [2 x %union.PR21912Ty]*), i32 0, i32 0), i32 % |
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| 77 | // CHECK: store %union.PR21912Ty* %[[PTR]], %union.PR21912Ty** @PR21912_2, align 4 |
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| 78 | |
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| 79 | // This compound literal should have local scope. |
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| 80 | int computed_with_lambda = [] { |
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| 81 | int *array = (int[]) { 1, 3, 5, 7 }; |
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| 82 | return array[0]; |
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| 83 | }(); |
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| 84 | // CHECK-LABEL: define internal i32 @{{.*}}clEv |
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| 85 | // CHECK: alloca [4 x i32] |
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| 86 | |
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