| 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 - -DDEFINE_GUID -DBRACKET_ATTRIB -triple=i386-pc-linux -fms-extensions | FileCheck %s --check-prefix=CHECK-DEFINE-GUID |
| 3 | // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-linux -fms-extensions | FileCheck %s |
| 4 | // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-pc-linux -fms-extensions | FileCheck %s --check-prefix=CHECK-64 |
| 5 | // 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 |
| 6 | |
| 7 | #ifdef DEFINE_GUID |
| 8 | struct _GUID { |
| 9 | #ifdef WRONG_GUID |
| 10 | unsigned int SomethingWentWrong; |
| 11 | #else |
| 12 | unsigned long Data1; |
| 13 | unsigned short Data2; |
| 14 | unsigned short Data3; |
| 15 | unsigned char Data4[8]; |
| 16 | #endif |
| 17 | }; |
| 18 | #endif |
| 19 | typedef struct _GUID GUID; |
| 20 | |
| 21 | #ifdef BRACKET_ATTRIB |
| 22 | [uuid(12345678-1234-1234-1234-1234567890aB)] struct S1 { } s1; |
| 23 | [uuid(87654321-4321-4321-4321-ba0987654321)] struct S2 { }; |
| 24 | [uuid({12345678-1234-1234-1234-1234567890ac})] struct Curly; |
| 25 | [uuid({12345678-1234-1234-1234-1234567890ac})] struct Curly; |
| 26 | #else |
| 27 | struct __declspec(uuid("12345678-1234-1234-1234-1234567890aB")) S1 { } s1; |
| 28 | struct __declspec(uuid("87654321-4321-4321-4321-ba0987654321")) S2 { }; |
| 29 | struct __declspec(uuid("{12345678-1234-1234-1234-1234567890ac}")) Curly; |
| 30 | struct __declspec(uuid("{12345678-1234-1234-1234-1234567890ac}")) Curly; |
| 31 | #endif |
| 32 | |
| 33 | #ifdef DEFINE_GUID |
| 34 | // Make sure we can properly generate code when the UUID has curly braces on it. |
| 35 | GUID thing = __uuidof(Curly); |
| 36 | // CHECK-DEFINE-GUID: @thing = global %struct._GUID zeroinitializer, align 4 |
| 37 | // CHECK-DEFINE-WRONG-GUID: @thing = global %struct._GUID zeroinitializer, align 4 |
| 38 | |
| 39 | // This gets initialized in a static initializer. |
| 40 | // CHECK-DEFINE-GUID: @g = global %struct._GUID zeroinitializer, align 4 |
| 41 | // CHECK-DEFINE-WRONG-GUID: @g = global %struct._GUID zeroinitializer, align 4 |
| 42 | GUID g = __uuidof(S1); |
| 43 | #endif |
| 44 | |
| 45 | // First global use of __uuidof(S1) forces the creation of the global. |
| 46 | // 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 |
| 47 | // CHECK: @gr = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4 |
| 48 | // CHECK-64: @gr = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 8 |
| 49 | const GUID& gr = __uuidof(S1); |
| 50 | |
| 51 | // CHECK: @gp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to %struct._GUID*), align 4 |
| 52 | const GUID* gp = &__uuidof(S1); |
| 53 | |
| 54 | // CHECK: @cp = global %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to %struct._GUID*), align 4 |
| 55 | const GUID* cp = &__uuidof(Curly); |
| 56 | |
| 57 | // Special case: _uuidof(0) |
| 58 | // CHECK: @zeroiid = constant %struct._GUID* bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_00000000_0000_0000_0000_000000000000 to %struct._GUID*), align 4 |
| 59 | const GUID& zeroiid = __uuidof(0); |
| 60 | |
| 61 | // __uuidof(S2) hasn't been used globally yet, so it's emitted when it's used |
| 62 | // in a function and is emitted at the end of the globals section. |
| 63 | // 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 |
| 64 | |
| 65 | // The static initializer for thing. |
| 66 | // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 bitcast (%struct._GUID* @thing to i8*), i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to i8*), i32 16, i1 false) |
| 67 | // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 bitcast (%struct._GUID* @thing to i8*), i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ac to i8*), i32 4, i1 false) |
| 68 | |
| 69 | // The static initializer for g. |
| 70 | // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 bitcast (%struct._GUID* @g to i8*), i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i1 false) |
| 71 | // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 bitcast (%struct._GUID* @g to i8*), i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i1 false) |
| 72 | |
| 73 | #ifdef DEFINE_GUID |
| 74 | void fun() { |
| 75 | // CHECK-DEFINE-GUID: %s1_1 = alloca %struct._GUID, align 4 |
| 76 | // CHECK-DEFINE-WRONG-GUID: %s1_1 = alloca %struct._GUID, align 4 |
| 77 | // CHECK-DEFINE-GUID: %s1_2 = alloca %struct._GUID, align 4 |
| 78 | // CHECK-DEFINE-WRONG-GUID: %s1_2 = alloca %struct._GUID, align 4 |
| 79 | // CHECK-DEFINE-GUID: %s1_3 = alloca %struct._GUID, align 4 |
| 80 | // CHECK-DEFINE-WRONG-GUID: %s1_3 = alloca %struct._GUID, align 4 |
| 81 | |
| 82 | // CHECK-DEFINE-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8* |
| 83 | // CHECK-DEFINE-WRONG-GUID: [[U1:%.+]] = bitcast %struct._GUID* %s1_1 to i8* |
| 84 | // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U1]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i1 false) |
| 85 | // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U1]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i1 false) |
| 86 | GUID s1_1 = __uuidof(S1); |
| 87 | |
| 88 | // CHECK-DEFINE-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8* |
| 89 | // CHECK-DEFINE-WRONG-GUID: [[U2:%.+]] = bitcast %struct._GUID* %s1_2 to i8* |
| 90 | // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U2]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i1 false) |
| 91 | // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U2]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i1 false) |
| 92 | GUID s1_2 = __uuidof(S1); |
| 93 | |
| 94 | // CHECK-DEFINE-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8* |
| 95 | // CHECK-DEFINE-WRONG-GUID: [[U3:%.+]] = bitcast %struct._GUID* %s1_3 to i8* |
| 96 | // CHECK-DEFINE-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U3]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 16, i1 false) |
| 97 | // CHECK-DEFINE-WRONG-GUID: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[U3]], i8* align 4 bitcast ({ i32, i16, i16, [8 x i8] }* @_GUID_12345678_1234_1234_1234_1234567890ab to i8*), i32 4, i1 false) |
| 98 | GUID s1_3 = __uuidof(s1); |
| 99 | } |
| 100 | #endif |
| 101 | |
| 102 | void gun() { |
| 103 | #ifdef DEFINE_GUID |
| 104 | // CHECK-DEFINE-GUID: %s2_1 = alloca %struct._GUID, align 4 |
| 105 | // CHECK-DEFINE-WRONG-GUID: %s2_1 = alloca %struct._GUID, align 4 |
| 106 | // CHECK-DEFINE-GUID: %s2_2 = alloca %struct._GUID, align 4 |
| 107 | // CHECK-DEFINE-WRONG-GUID: %s2_2 = alloca %struct._GUID, align 4 |
| 108 | GUID s2_1 = __uuidof(S2); |
| 109 | GUID s2_2 = __uuidof(S2); |
| 110 | #endif |
| 111 | // CHECK: %r = alloca %struct._GUID*, align 4 |
| 112 | // CHECK: %p = alloca %struct._GUID*, align 4 |
| 113 | // CHECK: %zeroiid = alloca %struct._GUID*, align 4 |
| 114 | |
| 115 | // 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 |
| 116 | const GUID& r = __uuidof(S2); |
| 117 | // 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 |
| 118 | const GUID* p = &__uuidof(S2); |
| 119 | |
| 120 | // Special case _uuidof(0), local scope version. |
| 121 | // 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 |
| 122 | const GUID& zeroiid = __uuidof(0); |
| 123 | } |
| 124 | |