1 // RUN: %clang_cc1 -emit-llvm %s -o - -DDEFINE_GUID -triple=i386-pc-win32 -fms-extensions | FileCheck %s --check-prefix=CHECK-DEFINE-GUID 2 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -fms-extensions | FileCheck %s 3 // RUN: %clang_cc1 -emit-llvm %s -o - -DDEFINE_GUID -DWRONG_GUID -triple=i386-pc-win32 -fms-extensions | FileCheck %s --check-prefix=CHECK-DEFINE-WRONG-GUID 4 5 #ifdef DEFINE_GUID 6 struct _GUID { 7 #ifdef WRONG_GUID 8 unsigned int SomethingWentWrong; 9 #else 10 unsigned long Data1; 11 unsigned short Data2; 12 unsigned short Data3; 13 unsigned char Data4[8]; 14 #endif 15 }; 16 #endif 17 typedef struct _GUID GUID; 18 19 struct __declspec(uuid("12345678-1234-1234-1234-1234567890aB")) S1 { } s1; 20 struct __declspec(uuid("87654321-4321-4321-4321-ba0987654321")) S2 { }; 21 struct __declspec(uuid("{12345678-1234-1234-1234-1234567890ac}")) Curly; 22 23 #ifdef DEFINE_GUID 24 // Make sure we can properly generate code when the UUID has curly braces on it. 25 GUID thing = __uuidof(Curly); 26 // CHECK-DEFINE-GUID: @thing = global %struct._GUID zeroinitializer, align 4 27 // CHECK-DEFINE-WRONG-GUID: @thing = global %struct._GUID zeroinitializer, align 4 28 29 // This gets initialized in a static initializer. 30 // CHECK-DEFINE-GUID: @g = global %struct._GUID zeroinitializer, align 4 31 // CHECK-DEFINE-WRONG-GUID: @g = global %struct._GUID zeroinitializer, align 4 32 GUID g = __uuidof(S1); 33 #endif 34 35 // First global use of __uuidof(S1) forces the creation of the global. 36 // 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" } 37 // CHECK: @gr = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4 38 const GUID& gr = __uuidof(S1); 39 40 // CHECK: @gp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4 41 const GUID* gp = &__uuidof(S1); 42 43 // CHECK: @cp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to %struct._GUID*), align 4 44 const GUID* cp = &__uuidof(Curly); 45 46 // Special case: _uuidof(0) 47 // CHECK: @zeroiid = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_00000000_0000_0000_0000_000000000000 to %struct._GUID*), align 4 48 const GUID& zeroiid = __uuidof(0); 49 50 // __uuidof(S2) hasn't been used globally yet, so it's emitted when it's used 51 // in a function and is emitted at the end of the globals section. 52 // 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!" } 53 54 // The static initializer for thing. 55 // 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) 56 // 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) 57 58 // The static initializer for g. 59 // 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) 60 // 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) 61 62 #ifdef DEFINE_GUID 63 void fun() { 64 // CHECK-DEFINE-GUID: %s1_1 = alloca %struct._GUID, align 4 65 // CHECK-DEFINE-WRONG-GUID: %s1_1 = alloca %struct._GUID, align 4 66 // CHECK-DEFINE-GUID: %s1_2 = alloca %struct._GUID, align 4 67 // CHECK-DEFINE-WRONG-GUID: %s1_2 = alloca %struct._GUID, align 4 68 // CHECK-DEFINE-GUID: %s1_3 = alloca %struct._GUID, align 4 69 // CHECK-DEFINE-WRONG-GUID: %s1_3 = alloca %struct._GUID, align 4 70 71 // CHECK-DEFINE-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8* 72 // CHECK-DEFINE-WRONG-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8* 73 // 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) 74 // 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) 75 GUID s1_1 = __uuidof(S1); 76 77 // CHECK-DEFINE-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8* 78 // CHECK-DEFINE-WRONG-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8* 79 // 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) 80 // 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) 81 GUID s1_2 = __uuidof(S1); 82 83 // CHECK-DEFINE-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8* 84 // CHECK-DEFINE-WRONG-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8* 85 // 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) 86 // 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) 87 GUID s1_3 = __uuidof(s1); 88 } 89 #endif 90 91 void gun() { 92 #ifdef DEFINE_GUID 93 // CHECK-DEFINE-GUID: %s2_1 = alloca %struct._GUID, align 4 94 // CHECK-DEFINE-WRONG-GUID: %s2_1 = alloca %struct._GUID, align 4 95 // CHECK-DEFINE-GUID: %s2_2 = alloca %struct._GUID, align 4 96 // CHECK-DEFINE-WRONG-GUID: %s2_2 = alloca %struct._GUID, align 4 97 GUID s2_1 = __uuidof(S2); 98 GUID s2_2 = __uuidof(S2); 99 #endif 100 // CHECK: %r = alloca %struct._GUID*, align 4 101 // CHECK: %p = alloca %struct._GUID*, align 4 102 // CHECK: %zeroiid = alloca %struct._GUID*, align 4 103 104 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_87654321_4321_4321_4321_ba0987654321 to %struct._GUID*), %struct._GUID** %r, align 4 105 const GUID& r = __uuidof(S2); 106 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_87654321_4321_4321_4321_ba0987654321 to %struct._GUID*), %struct._GUID** %p, align 4 107 const GUID* p = &__uuidof(S2); 108 109 // Special case _uuidof(0), local scope version. 110 // CHECK: store %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_00000000_0000_0000_0000_000000000000 to %struct._GUID*), %struct._GUID** %zeroiid, align 4 111 const GUID& zeroiid = __uuidof(0); 112 } 113