blob: a9882bc6d2414110f6e61cecd0ad0207fef3f1b7 [file] [log] [blame]
David Majnemer17e26332014-12-14 12:16:43 +00001// RUN: %clang_cc1 -std=c++11 -triple armv7-none-eabi -emit-llvm -o - %s | FileCheck %s
Douglas Gregor9b71f0c2011-06-17 04:59:12 +00002
3struct X {
4 X();
5 X(const X&);
6 X(const char*);
7 ~X();
8};
9
10struct Y {
11 int i;
12 X x;
13};
14
Richard Smithb3189a12016-12-05 07:49:14 +000015// CHECK: @.compoundliteral = internal global [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5], align 4
16// CHECK: @q = global i32* getelementptr inbounds ([5 x i32], [5 x i32]* @.compoundliteral, i32 0, i32 0), align 4
17
Stephen Lin43622612013-08-15 06:47:53 +000018// CHECK-LABEL: define i32 @_Z1fv()
Douglas Gregor9b71f0c2011-06-17 04:59:12 +000019int f() {
20 // CHECK: [[LVALUE:%[a-z0-9.]+]] = alloca
David Blaikie218b7832015-02-27 19:18:17 +000021 // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}}, {{.*}}* [[LVALUE]], i32 0, i32 0
Douglas Gregor9b71f0c2011-06-17 04:59:12 +000022 // CHECK-NEXT: store i32 17, i32* [[I]]
23 // CHECK-NEXT: [[X:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 1
David Blaikie2fc41612012-09-19 18:46:03 +000024 // CHECK-NEXT: call %struct.X* @_ZN1XC1EPKc({{.*}}[[X]]
Douglas Gregor9b71f0c2011-06-17 04:59:12 +000025 // CHECK-NEXT: [[I:%[a-z0-9]+]] = getelementptr inbounds {{.*}} [[LVALUE]], i32 0, i32 0
David Blaikiea953f282015-02-27 21:19:58 +000026 // CHECK-NEXT: [[RESULT:%[a-z0-9]+]] = load i32, i32*
David Blaikie2fc41612012-09-19 18:46:03 +000027 // CHECK-NEXT: call %struct.Y* @_ZN1YD1Ev
Douglas Gregor9b71f0c2011-06-17 04:59:12 +000028 // CHECK-NEXT: ret i32 [[RESULT]]
29 return ((Y){17, "seventeen"}).i;
30}
Peter Collingbournefcc764d2011-11-13 00:51:30 +000031
Stephen Lin43622612013-08-15 06:47:53 +000032// CHECK-LABEL: define i32 @_Z1gv()
Peter Collingbournefcc764d2011-11-13 00:51:30 +000033int g() {
Benjamin Kramer85be49d2015-04-09 22:54:53 +000034 // CHECK: store [2 x i32]* %{{[a-z0-9.]+}}, [2 x i32]** [[V:%[a-z0-9.]+]]
Peter Collingbournefcc764d2011-11-13 00:51:30 +000035 const int (&v)[2] = (int [2]) {1,2};
36
David Blaikiea953f282015-02-27 21:19:58 +000037 // CHECK: [[A:%[a-z0-9.]+]] = load [2 x i32]*, [2 x i32]** [[V]]
David Blaikie218b7832015-02-27 19:18:17 +000038 // CHECK-NEXT: [[A0ADDR:%[a-z0-9.]+]] = getelementptr inbounds [2 x i32], [2 x i32]* [[A]], i32 0, {{.*}} 0
David Blaikiea953f282015-02-27 21:19:58 +000039 // CHECK-NEXT: [[A0:%[a-z0-9.]+]] = load i32, i32* [[A0ADDR]]
Peter Collingbournefcc764d2011-11-13 00:51:30 +000040 // CHECK-NEXT: ret i32 [[A0]]
41 return v[0];
42}
Richard Smith2d988f02011-11-22 22:48:32 +000043
Richard Smith4baaa5a2016-12-03 01:14:32 +000044// GCC's compound-literals-in-C++ extension lifetime-extends a compound literal
45// (or a C++11 list-initialized temporary!) if:
46// - it is at global scope
47// - it has array type
48// - it has a constant initializer
49
Richard Smith2d988f02011-11-22 22:48:32 +000050struct Z { int i[3]; };
51int *p = (Z){ {1, 2, 3} }.i;
52// CHECK: define {{.*}}__cxx_global_var_init()
Richard Smith4baaa5a2016-12-03 01:14:32 +000053// CHECK: alloca %struct.Z
54// CHECK: store i32* %{{.*}}, i32** @p
David Majnemer17e26332014-12-14 12:16:43 +000055
Richard Smith4baaa5a2016-12-03 01:14:32 +000056int *q = (int [5]){1, 2, 3, 4, 5};
Richard Smithb3189a12016-12-05 07:49:14 +000057// (constant initialization, checked above)
David Majnemer17e26332014-12-14 12:16:43 +000058
Richard Smithb3189a12016-12-05 07:49:14 +000059extern int n;
60int *r = (int [5]){1, 2, 3, 4, 5} + n;
61// CHECK-LABEL: define {{.*}}__cxx_global_var_init.1()
62// CHECK: %[[PTR:.*]] = getelementptr inbounds i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @.compoundliteral.2, i32 0, i32 0), i32 %
63// CHECK: store i32* %[[PTR]], i32** @r
64
65int *PR21912_1 = (int []){} + n;
66// CHECK-LABEL: define {{.*}}__cxx_global_var_init.3()
67// CHECK: %[[PTR:.*]] = getelementptr inbounds i32, i32* getelementptr inbounds ([0 x i32], [0 x i32]* @.compoundliteral.4, i32 0, i32 0), i32 %
68// CHECK: store i32* %[[PTR]], i32** @PR21912_1
David Majnemer17e26332014-12-14 12:16:43 +000069
70union PR21912Ty {
71 long long l;
72 double d;
73};
Richard Smithb3189a12016-12-05 07:49:14 +000074union PR21912Ty *PR21912_2 = (union PR21912Ty[]){{.d = 2.0}, {.l = 3}} + n;
75// CHECK-LABEL: define {{.*}}__cxx_global_var_init.5()
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 %
77// CHECK: store %union.PR21912Ty* %[[PTR]], %union.PR21912Ty** @PR21912_2, align 4
John McCall96482882016-10-31 21:56:26 +000078
79// This compound literal should have local scope.
80int computed_with_lambda = [] {
81 int *array = (int[]) { 1, 3, 5, 7 };
82 return array[0];
83}();
84// CHECK-LABEL: define internal i32 @{{.*}}clEv
85// CHECK: alloca [4 x i32]