1 // RUN: %clang_cc1 -emit-llvm %s -o - -DDEFINE_GUID -triple=i386-pc-linux -fms-extensions | FileCheck %s --check-prefix=CHECK-DEFINE-GUID
2 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-linux -fms-extensions | FileCheck %s
3 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-pc-linux -fms-extensions | FileCheck %s --check-prefix=CHECK-64
4 // RUN: %clang_cc1 -emit-llvm %s -o - -DDEFINE_GUID -DWRONG_GUID -triple=i386-pc-linux -fms-extensions | FileCheck %s --check-prefix=CHECK-DEFINE-WRONG-GUID
5
6 #ifdef DEFINE_GUID
7 struct _GUID {
8 #ifdef WRONG_GUID
9 unsigned int SomethingWentWrong;
10 #else
11 unsigned long Data1;
12 unsigned short Data2;
13 unsigned short Data3;
14 unsigned char Data4[8];
15 #endif
16 };
17 #endif
18 typedef struct _GUID GUID;
19
20 struct __declspec(uuid("12345678-1234-1234-1234-1234567890aB")) S1 { } s1;
21 struct __declspec(uuid("87654321-4321-4321-4321-ba0987654321")) S2 { };
22 struct __declspec(uuid("{12345678-1234-1234-1234-1234567890ac}")) Curly;
23 struct __declspec(uuid("{12345678-1234-1234-1234-1234567890ac}")) Curly;
24
25 #ifdef DEFINE_GUID
26 // Make sure we can properly generate code when the UUID has curly braces on it.
27 GUID thing = __uuidof(Curly);
28 // CHECK-DEFINE-GUID: @thing = global %struct._GUID zeroinitializer, align 4
29 // CHECK-DEFINE-WRONG-GUID: @thing = global %struct._GUID zeroinitializer, align 4
30
31 // This gets initialized in a static initializer.
32 // CHECK-DEFINE-GUID: @g = global %struct._GUID zeroinitializer, align 4
33 // CHECK-DEFINE-WRONG-GUID: @g = global %struct._GUID zeroinitializer, align 4
34 GUID g = __uuidof(S1);
35 #endif
36
37 // First global use of __uuidof(S1) forces the creation of the global.
38 // CHECK: @_GUID_12345678_1234_1234_1234_1234567890ab = linkonce_odr constant { i32, i16, i16, [8 x i8] } { i32 305419896, i16 4660, i16 4660, [8 x i8] c"\124\124Vx\90\AB" }, comdat
39 // CHECK: @gr = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4
40 // CHECK-64: @gr = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 8
41 const GUID& gr = __uuidof(S1);
42
43 // CHECK: @gp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4
44 const GUID* gp = &__uuidof(S1);
45
46 // CHECK: @cp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to %struct._GUID*), align 4
47 const GUID* cp = &__uuidof(Curly);
48
49 // Special case: _uuidof(0)
50 // CHECK: @zeroiid = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_00000000_0000_0000_0000_000000000000 to %struct._GUID*), align 4
51 const GUID& zeroiid = __uuidof(0);
52
53 // __uuidof(S2) hasn't been used globally yet, so it's emitted when it's used
54 // in a function and is emitted at the end of the globals section.
55 // CHECK: @_GUID_87654321_4321_4321_4321_ba0987654321 = linkonce_odr constant { i32, i16, i16, [8 x i8] } { i32 -2023406815, i16 17185, i16 17185, [8 x i8] c"C!\BA\09\87eC!" }, comdat
56
57 // The static initializer for thing.
58 // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct._GUID* @thing to i8*), i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to i8*), i32 16, i32 4, i1 false)
59 // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct._GUID* @thing to i8*), i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to i8*), i32 4, i32 4, i1 false)
60
61 // The static initializer for g.
62 // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct._GUID* @g to i8*), i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i32 4, i1 false)
63 // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct._GUID* @g to i8*), i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i32 4, i1 false)
64
65 #ifdef DEFINE_GUID
fun()66 void fun() {
67 // CHECK-DEFINE-GUID: %s1_1 = alloca %struct._GUID, align 4
68 // CHECK-DEFINE-WRONG-GUID: %s1_1 = alloca %struct._GUID, align 4
69 // CHECK-DEFINE-GUID: %s1_2 = alloca %struct._GUID, align 4
70 // CHECK-DEFINE-WRONG-GUID: %s1_2 = alloca %struct._GUID, align 4
71 // CHECK-DEFINE-GUID: %s1_3 = alloca %struct._GUID, align 4
72 // CHECK-DEFINE-WRONG-GUID: %s1_3 = alloca %struct._GUID, align 4
73
74 // CHECK-DEFINE-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8*
75 // CHECK-DEFINE-WRONG-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8*
76 // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U1]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i32 4, i1 false)
77 // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U1]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i32 4, i1 false)
78 GUID s1_1 = __uuidof(S1);
79
80 // CHECK-DEFINE-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8*
81 // CHECK-DEFINE-WRONG-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8*
82 // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U2]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i32 4, i1 false)
83 // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U2]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i32 4, i1 false)
84 GUID s1_2 = __uuidof(S1);
85
86 // CHECK-DEFINE-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8*
87 // CHECK-DEFINE-WRONG-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8*
88 // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U3]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i32 4, i1 false)
89 // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[U3]], i8* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i32 4, i1 false)
90 GUID s1_3 = __uuidof(s1);
91 }
92 #endif
93
gun()94 void gun() {
95 #ifdef DEFINE_GUID
96 // CHECK-DEFINE-GUID: %s2_1 = alloca %struct._GUID, align 4
97 // CHECK-DEFINE-WRONG-GUID: %s2_1 = alloca %struct._GUID, align 4
98 // CHECK-DEFINE-GUID: %s2_2 = alloca %struct._GUID, align 4
99 // CHECK-DEFINE-WRONG-GUID: %s2_2 = alloca %struct._GUID, align 4
100 GUID s2_1 = __uuidof(S2);
101 GUID s2_2 = __uuidof(S2);
102 #endif
103 // CHECK: %r = alloca %struct._GUID*, align 4
104 // CHECK: %p = alloca %struct._GUID*, align 4
105 // CHECK: %zeroiid = alloca %struct._GUID*, align 4
106
107 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_87654321_4321_4321_4321_ba0987654321 to %struct._GUID*), %struct._GUID** %r, align 4
108 const GUID& r = __uuidof(S2);
109 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_87654321_4321_4321_4321_ba0987654321 to %struct._GUID*), %struct._GUID** %p, align 4
110 const GUID* p = &__uuidof(S2);
111
112 // Special case _uuidof(0), local scope version.
113 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_00000000_0000_0000_0000_000000000000 to %struct._GUID*), %struct._GUID** %zeroiid, align 4
114 const GUID& zeroiid = __uuidof(0);
115 }
116