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86 lines
3.2 KiB
86 lines
3.2 KiB
// RUN: %clang_cc1 -std=c++11 -triple armv7-none-eabi -emit-llvm -o - %s | FileCheck %s
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struct X {
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X();
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X(const X&);
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X(const char*);
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~X();
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};
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struct Y {
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int i;
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X x;
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};
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// CHECK: @.compoundliteral = internal global [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5], align 4
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// CHECK: @q = global i32* getelementptr inbounds ([5 x i32], [5 x i32]* @.compoundliteral, i32 0, i32 0), align 4
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// CHECK-LABEL: define i32 @_Z1fv()
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int f() {
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// CHECK: [[LVALUE:%[a-z0-9.]+]] = alloca
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// CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}}, {{.*}}* [[LVALUE]], i32 0, i32 0
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// CHECK-NEXT: store i32 17, i32* [[I]]
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// CHECK-NEXT: [[X:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 1
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// CHECK-NEXT: call %struct.X* @_ZN1XC1EPKc({{.*}}[[X]]
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// CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 0
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// CHECK-NEXT: [[RESULT:%[a-z0-9]+]] = load i32, i32*
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// CHECK-NEXT: call %struct.Y* @_ZN1YD1Ev
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// CHECK-NEXT: ret i32 [[RESULT]]
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return ((Y){17, "seventeen"}).i;
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}
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// CHECK-LABEL: define i32 @_Z1gv()
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int g() {
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// CHECK: store [2 x i32]* %{{[a-z0-9.]+}}, [2 x i32]** [[V:%[a-z0-9.]+]]
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const int (&v)[2] = (int [2]) {1,2};
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// CHECK: [[A:%[a-z0-9.]+]] = load [2 x i32]*, [2 x i32]** [[V]]
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// CHECK-NEXT: [[A0ADDR:%[a-z0-9.]+]] = getelementptr inbounds [2 x i32], [2 x i32]* [[A]], i32 0, {{.*}} 0
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// CHECK-NEXT: [[A0:%[a-z0-9.]+]] = load i32, i32* [[A0ADDR]]
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// CHECK-NEXT: ret i32 [[A0]]
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return v[0];
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}
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// GCC's compound-literals-in-C++ extension lifetime-extends a compound literal
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// (or a C++11 list-initialized temporary!) if:
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// - it is at global scope
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// - it has array type
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// - it has a constant initializer
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struct Z { int i[3]; };
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int *p = (Z){ {1, 2, 3} }.i;
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// CHECK: define {{.*}}__cxx_global_var_init()
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// CHECK: alloca %struct.Z
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// CHECK: store i32* %{{.*}}, i32** @p
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int *q = (int [5]){1, 2, 3, 4, 5};
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// (constant initialization, checked above)
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extern int n;
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int *r = (int [5]){1, 2, 3, 4, 5} + n;
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// CHECK-LABEL: define {{.*}}__cxx_global_var_init.1()
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// 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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// CHECK: store i32* %[[PTR]], i32** @r
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int *PR21912_1 = (int []){} + n;
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// CHECK-LABEL: define {{.*}}__cxx_global_var_init.3()
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// 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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// CHECK: store i32* %[[PTR]], i32** @PR21912_1
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union PR21912Ty {
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long long l;
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double d;
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};
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union PR21912Ty *PR21912_2 = (union PR21912Ty[]){{.d = 2.0}, {.l = 3}} + n;
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// CHECK-LABEL: define {{.*}}__cxx_global_var_init.5()
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// 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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// CHECK: store %union.PR21912Ty* %[[PTR]], %union.PR21912Ty** @PR21912_2, align 4
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// This compound literal should have local scope.
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int computed_with_lambda = [] {
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int *array = (int[]) { 1, 3, 5, 7 };
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return array[0];
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}();
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// CHECK-LABEL: define internal i32 @{{.*}}clEv
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// CHECK: alloca [4 x i32]
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