| Douglas Gregor | bc25f19 | 2010-07-13 23:27:15 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s | FileCheck %s |
| 2 | |
| 3 | struct X { int i; float f; }; |
| 4 | struct Y { X x; }; |
| 5 | |
| 6 | // CHECK: define void @_Z21reinterpret_cast_testRiRfR1X |
| 7 | void reinterpret_cast_test(int &ir, float &fr, X &xr) { |
| 8 | // CHECK: load float** |
| 9 | // CHECK: bitcast float* |
| 10 | // CHECK: load i32* |
| 11 | ir = reinterpret_cast<int&>(fr); |
| 12 | // CHECK: load |
| 13 | // CHECK: {{bitcast.*to i32\*}} |
| 14 | // CHECK: load i32* |
| 15 | ir = reinterpret_cast<int&>(xr); |
| 16 | // CHECK: load i32 |
| 17 | // CHECK: {{bitcast.*to float\*}} |
| 18 | // CHECK: load float* |
| 19 | fr = reinterpret_cast<float&>(ir); |
| 20 | // CHECK: load |
| 21 | // CHECK: {{bitcast.*to float\*}} |
| 22 | // CHECK: load float* |
| 23 | fr = reinterpret_cast<float&>(xr); |
| 24 | // CHECK: load i32** |
| 25 | // CHECK: bitcast i32* |
| 26 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 27 | xr = reinterpret_cast<X&>(ir); |
| 28 | // CHECK: load float** |
| 29 | // CHECK: bitcast float* |
| 30 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 31 | xr = reinterpret_cast<X&>(fr); |
| 32 | // CHECK: ret void |
| 33 | } |
| 34 | |
| 35 | // CHECK: define void @_Z6c_castRiRfR1X |
| 36 | void c_cast(int &ir, float &fr, X &xr) { |
| 37 | // CHECK: load float** |
| 38 | // CHECK: bitcast float* |
| 39 | // CHECK: load i32* |
| 40 | ir = (int&)fr; |
| 41 | // CHECK: load |
| 42 | // CHECK: {{bitcast.*to i32\*}} |
| 43 | // CHECK: load i32* |
| 44 | ir = (int&)xr; |
| 45 | // CHECK: load i32 |
| 46 | // CHECK: {{bitcast.*to float\*}} |
| 47 | // CHECK: load float* |
| 48 | fr = (float&)ir; |
| 49 | // CHECK: load |
| 50 | // CHECK: {{bitcast.*to float\*}} |
| 51 | // CHECK: load float* |
| 52 | fr = (float&)xr; |
| 53 | // CHECK: load i32** |
| 54 | // CHECK: bitcast i32* |
| 55 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 56 | xr = (X&)ir; |
| 57 | // CHECK: load float** |
| 58 | // CHECK: bitcast float* |
| 59 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 60 | xr = (X&)fr; |
| 61 | // CHECK: ret void |
| 62 | } |
| 63 | |
| 64 | // CHECK: define void @_Z15functional_castRiRfR1X |
| 65 | void functional_cast(int &ir, float &fr, X &xr) { |
| 66 | typedef int &intref; |
| 67 | typedef float &floatref; |
| 68 | typedef X &Xref; |
| 69 | // CHECK: load float** |
| 70 | // CHECK: bitcast float* |
| 71 | // CHECK: load i32* |
| 72 | ir = intref(fr); |
| 73 | // CHECK: load |
| 74 | // CHECK: {{bitcast.*to i32\*}} |
| 75 | // CHECK: load i32* |
| 76 | ir = intref(xr); |
| 77 | // CHECK: load i32 |
| 78 | // CHECK: {{bitcast.*to float\*}} |
| 79 | // CHECK: load float* |
| 80 | fr = floatref(ir); |
| 81 | // CHECK: load |
| 82 | // CHECK: {{bitcast.*to float\*}} |
| 83 | // CHECK: load float* |
| 84 | fr = floatref(xr); |
| 85 | // CHECK: load i32** |
| 86 | // CHECK: bitcast i32* |
| 87 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 88 | xr = Xref(ir); |
| 89 | // CHECK: load float** |
| 90 | // CHECK: bitcast float* |
| 91 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 |
| 92 | xr = Xref(fr); |
| 93 | // CHECK: ret void |
| 94 | } |
| 95 | |
| 96 | namespace PR6437 { |
| 97 | struct in_addr {}; |
| 98 | void copy( const struct in_addr &new_addr ) { |
| 99 | int addr = (int&)new_addr; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | namespace PR7593 { |
| 104 | void foo(double &X, char *A) { |
| 105 | X = reinterpret_cast<double&>(A[4]); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | namespace PR7344 { |
| 110 | void serialize_annotatable_id( void*& id ) |
| 111 | { |
| 112 | unsigned long l_id = (unsigned long&)id; |
| 113 | } |
| 114 | } |