1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
3 // Capture the type and name so matching later is cleaner.
4 struct CompoundTy { int a; };
5 // CHECK: @MyCLH = constant [[MY_CLH:[^,]+]]
6 const struct CompoundTy *const MyCLH = &(struct CompoundTy){3};
9 struct s {int a, b, c;} * b = &(struct s) {1, 2, 3};
10 _Complex double * x = &(_Complex double){1.0f};
11 typedef int v4i32 __attribute((vector_size(16)));
12 v4i32 *y = &(v4i32){1,2,3,4};
16 struct s {int a, b, c;} * b = &(struct s) {1, 2, 3};
17 _Complex double * x = &(_Complex double){1.0f};
20 // CHECK-LABEL: define void @f()
22 typedef struct S { int x,y; } S;
23 // CHECK: [[S:%[a-zA-Z0-9.]+]] = alloca [[STRUCT:%[a-zA-Z0-9.]+]],
25 // CHECK-NEXT: [[COMPOUNDLIT:%[a-zA-Z0-9.]+]] = alloca [[STRUCT]]
26 // CHECK-NEXT: [[CX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 0
27 // CHECK-NEXT: [[SY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 1
28 // CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SY]]
29 // CHECK-NEXT: store i32 [[TMP]], i32* [[CX]]
30 // CHECK-NEXT: [[CY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 1
31 // CHECK-NEXT: [[SX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 0
32 // CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SX]]
33 // CHECK-NEXT: store i32 [[TMP]], i32* [[CY]]
34 // CHECK-NEXT: [[SI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[S]] to i8*
35 // CHECK-NEXT: [[COMPOUNDLITI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[COMPOUNDLIT]] to i8*
36 // CHECK-NEXT: call void @llvm.memcpy{{.*}}(i8* align {{[0-9]+}} [[SI8]], i8* align {{[0-9]+}} [[COMPOUNDLITI8]]
38 // CHECK-NEXT: ret void
41 // CHECK-LABEL: define i48 @g(
42 struct G { short x, y, z; };
43 struct G g(int x, int y, int z) {
44 // CHECK: [[RESULT:%.*]] = alloca [[G:%.*]], align 2
45 // CHECK-NEXT: [[X:%.*]] = alloca i32, align 4
46 // CHECK-NEXT: [[Y:%.*]] = alloca i32, align 4
47 // CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4
48 // CHECK-NEXT: [[COERCE_TEMP:%.*]] = alloca i48
49 // CHECK-NEXT: store i32
50 // CHECK-NEXT: store i32
51 // CHECK-NEXT: store i32
53 // Evaluate the compound literal directly in the result value slot.
54 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 0
55 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[X]], align 4
56 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
57 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
58 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 1
59 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Y]], align 4
60 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
61 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
62 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 2
63 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Z]], align 4
64 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
65 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
66 return (struct G) { x, y, z };
68 // CHECK-NEXT: [[T0:%.*]] = bitcast i48* [[COERCE_TEMP]] to i8*
69 // CHECK-NEXT: [[T1:%.*]] = bitcast [[G]]* [[RESULT]] to i8*
70 // CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align {{[0-9]+}} [[T0]], i8* align {{[0-9]+}} [[T1]], i64 6
71 // CHECK-NEXT: [[T0:%.*]] = load i48, i48* [[COERCE_TEMP]]
72 // CHECK-NEXT: ret i48 [[T0]]
75 // We had a bug where we'd emit a new GlobalVariable for each time we used a
76 // const pointer to a variable initialized by a compound literal.
77 // CHECK-LABEL: define i32 @compareMyCLH() #0
79 // CHECK: store i8* bitcast ([[MY_CLH]] to i8*)
80 const void *a = MyCLH;
81 // CHECK: store i8* bitcast ([[MY_CLH]] to i8*)
82 const void *b = MyCLH;