1 // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10 -o - %s | FileCheck %s 2 3 // PR6024 4 extern int i; 5 6 // CHECK: define dereferenceable({{[0-9]+}}) i32* @_Z16lvalue_noop_castv() [[NUW:#[0-9]+]] 7 const int &lvalue_noop_cast() { 8 if (i == 0) 9 // CHECK: store i32 17, i32* 10 return (const int&)17; 11 else if (i == 1) 12 // CHECK: store i32 17, i32* 13 return static_cast<const int&>(17); 14 // CHECK: store i32 17, i32* 15 return 17; 16 } 17 18 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i16* @_Z20lvalue_integral_castv() 19 const short &lvalue_integral_cast() { 20 if (i == 0) 21 // CHECK: store i16 17, i16* 22 return (const short&)17; 23 else if (i == 1) 24 // CHECK: store i16 17, i16* 25 return static_cast<const short&>(17); 26 // CHECK: store i16 17, i16* 27 return 17; 28 } 29 30 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i16* @_Z29lvalue_floating_integral_castv() 31 const short &lvalue_floating_integral_cast() { 32 if (i == 0) 33 // CHECK: store i16 17, i16* 34 return (const short&)17.5; 35 else if (i == 1) 36 // CHECK: store i16 17, i16* 37 return static_cast<const short&>(17.5); 38 // CHECK: store i16 17, i16* 39 return 17.5; 40 } 41 42 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) float* @_Z29lvalue_integral_floating_castv() 43 const float &lvalue_integral_floating_cast() { 44 if (i == 0) 45 // CHECK: store float 1.700000e+{{0*}}1, float* 46 return (const float&)17; 47 else if (i == 1) 48 // CHECK: store float 1.700000e+{{0*}}1, float* 49 return static_cast<const float&>(17); 50 // CHECK: store float 1.700000e+{{0*}}1, float* 51 return 17; 52 } 53 54 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) float* @_Z20lvalue_floating_castv() 55 const float &lvalue_floating_cast() { 56 if (i == 0) 57 // CHECK: store float 1.700000e+{{0*}}1, float* 58 return (const float&)17.0; 59 else if (i == 1) 60 // CHECK: store float 1.700000e+{{0*}}1, float* 61 return static_cast<const float&>(17.0); 62 // CHECK: store float 1.700000e+{{0*}}1, float* 63 return 17.0; 64 } 65 66 int get_int(); 67 68 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z24lvalue_integer_bool_castv() 69 const bool &lvalue_integer_bool_cast() { 70 if (i == 0) 71 // CHECK: call i32 @_Z7get_intv() 72 // CHECK: store i8 73 return (const bool&)get_int(); 74 else if (i == 1) 75 // CHECK: call i32 @_Z7get_intv() 76 // CHECK: store i8 77 return static_cast<const bool&>(get_int()); 78 // CHECK: call i32 @_Z7get_intv() 79 // CHECK: store i8 80 return get_int(); 81 } 82 83 float get_float(); 84 85 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z25lvalue_floating_bool_castv() 86 const bool &lvalue_floating_bool_cast() { 87 if (i == 0) 88 // CHECK: call float @_Z9get_floatv() 89 // CHECK: fcmp une float 90 // CHECK: store i8 91 return (const bool&)get_float(); 92 else if (i == 1) 93 // CHECK: call float @_Z9get_floatv() 94 // CHECK: fcmp une float 95 // CHECK: store i8 96 return static_cast<const bool&>(get_float()); 97 // CHECK: call float @_Z9get_floatv() 98 // CHECK: fcmp une float 99 // CHECK: store i8 100 return get_float(); 101 } 102 103 struct X { }; 104 typedef int X::*pm; 105 typedef int (X::*pmf)(int); 106 107 pm get_pointer_to_member_data(); 108 pmf get_pointer_to_member_function(); 109 110 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z26lvalue_ptrmem_to_bool_castv() 111 const bool &lvalue_ptrmem_to_bool_cast() { 112 if (i == 0) 113 // CHECK: call i64 @_Z26get_pointer_to_member_datav() 114 // CHECK: store i8 115 // CHECK: store i8* 116 return (const bool&)get_pointer_to_member_data(); 117 else if (i == 1) 118 // CHECK: call i64 @_Z26get_pointer_to_member_datav() 119 // CHECK: store i8 120 // CHECK: store i8* 121 return static_cast<const bool&>(get_pointer_to_member_data()); 122 // CHECK: call i64 @_Z26get_pointer_to_member_datav() 123 // CHECK: store i8 124 // CHECK: store i8* 125 return get_pointer_to_member_data(); 126 } 127 128 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z27lvalue_ptrmem_to_bool_cast2v 129 const bool &lvalue_ptrmem_to_bool_cast2() { 130 if (i == 0) 131 // CHECK: {{call.*_Z30get_pointer_to_member_functionv}} 132 // CHECK: store i8 133 // CHECK: store i8* 134 return (const bool&)get_pointer_to_member_function(); 135 else if (i == 1) 136 // CHECK: {{call.*_Z30get_pointer_to_member_functionv}} 137 // CHECK: store i8 138 // CHECK: store i8* 139 return static_cast<const bool&>(get_pointer_to_member_function()); 140 // CHECK: {{call.*_Z30get_pointer_to_member_functionv}} 141 // CHECK: store i8 142 // CHECK: store i8* 143 return get_pointer_to_member_function(); 144 } 145 146 _Complex double get_complex_double(); 147 148 // CHECK: {{define.*_Z2f1v}} 149 const _Complex float &f1() { 150 if (i == 0) 151 // CHECK: {{call.*_Z18get_complex_doublev}} 152 // CHECK: fptrunc 153 // CHECK: fptrunc 154 // CHECK: store float 155 // CHECK: store float 156 return (const _Complex float&)get_complex_double(); 157 else if (i == 1) 158 // CHECK: {{call.*_Z18get_complex_doublev}} 159 // CHECK: fptrunc 160 // CHECK: fptrunc 161 // CHECK: store float 162 // CHECK: store float 163 return static_cast<const _Complex float&>(get_complex_double()); 164 // CHECK: {{call.*_Z18get_complex_doublev}} 165 // CHECK: fptrunc 166 // CHECK: fptrunc 167 // CHECK: store float 168 // CHECK: store float 169 return get_complex_double(); 170 } 171 172 // CHECK-LABEL: define i32 @_Z7pr10592RKi(i32* 173 unsigned pr10592(const int &v) { 174 // CHECK: [[VADDR:%[a-zA-Z0-9.]+]] = alloca i32* 175 // CHECK-NEXT: [[REFTMP:%[a-zA-Z0-9.]+]] = alloca i32 176 // CHECK-NEXT: store i32* [[V:%[a-zA-Z0-9.]+]], i32** [[VADDR]] 177 // CHECK-NEXT: [[VADDR_1:%[a-zA-Z0-9.]+]] = load i32*, i32** [[VADDR]] 178 // CHECK-NEXT: [[VVAL:%[a-zA-Z0-9.]+]] = load i32, i32* [[VADDR_1]] 179 // CHECK-NEXT: store i32 [[VVAL]], i32* [[REFTMP]] 180 // CHECK-NEXT: [[VVAL_I:%[a-zA-Z0-9.]+]] = load i32, i32* [[REFTMP]] 181 // CHECK-NEXT: ret i32 [[VVAL_I]] 182 return static_cast<const unsigned &>(v); 183 } 184 185 namespace PR10650 { 186 struct Helper { 187 unsigned long long id(); 188 }; 189 unsigned long long test(Helper *obj) { 190 return static_cast<const unsigned long long&>(obj->id()); 191 } 192 // CHECK-LABEL: define i64 @_ZN7PR106504testEPNS_6HelperE 193 // CHECK: store i64 194 } 195 196 // CHECK: attributes [[NUW]] = { nounwind{{.*}} } 197
