1 // RUN: %clang -S -emit-llvm -target x86_64-unknown_unknown -g %s -o - -std=c++11 | FileCheck %s 2 3 // CHECK: !MDCompileUnit( 4 // CHECK-SAME: retainedTypes: [[RETAIN:![0-9]*]] 5 // CHECK: [[EMPTY:![0-9]*]] = !{} 6 // CHECK: [[RETAIN]] = !{!{{[0-9]]*}}, [[FOO:![0-9]*]], 7 8 9 // CHECK: [[TC:![0-9]*]] = !MDCompositeType(tag: DW_TAG_structure_type, name: "TC<unsigned int, 2, &glb, &foo::e, &foo::f, &foo::g, 1, 2, 3>" 10 // CHECK-SAME: templateParams: [[TCARGS:![0-9]*]] 11 // CHECK: [[TCARGS]] = !{[[TCARG1:![0-9]*]], [[TCARG2:![0-9]*]], [[TCARG3:![0-9]*]], [[TCARG4:![0-9]*]], [[TCARG5:![0-9]*]], [[TCARG6:![0-9]*]], [[TCARG7:![0-9]*]]} 12 // 13 // CHECK: [[TCARG1]] = !MDTemplateTypeParameter(name: "T", type: [[UINT:![0-9]*]]) 14 // CHECK: [[UINT:![0-9]*]] = !MDBasicType(name: "unsigned int" 15 // CHECK: [[TCARG2]] = !MDTemplateValueParameter(type: [[UINT]], value: i32 2) 16 // CHECK: [[TCARG3]] = !MDTemplateValueParameter(name: "x", type: [[CINTPTR:![0-9]*]], value: i32* @glb) 17 // CHECK: [[CINTPTR]] = !MDDerivedType(tag: DW_TAG_pointer_type, {{.*}}baseType: [[CINT:![0-9]+]] 18 // CHECK: [[CINT]] = !MDDerivedType(tag: DW_TAG_const_type, {{.*}}baseType: [[INT:![0-9]+]] 19 // CHECK: [[INT]] = !MDBasicType(name: "int" 20 // CHECK: [[TCARG4]] = !MDTemplateValueParameter(name: "a", type: [[MEMINTPTR:![0-9]*]], value: i64 8) 21 // CHECK: [[MEMINTPTR]] = !MDDerivedType(tag: DW_TAG_ptr_to_member_type, {{.*}}baseType: [[INT]], {{.*}}extraData: !"_ZTS3foo") 22 // 23 // Currently Clang emits the pointer-to-member-function value, but LLVM doesn't 24 // use it (GCC doesn't emit a value for pointers to member functions either - so 25 // it's not clear what, if any, format would be acceptable to GDB) 26 // 27 // CHECK: [[TCARG5]] = !MDTemplateValueParameter(name: "b", type: [[MEMFUNPTR:![0-9]*]], value: { i64, i64 } { i64 ptrtoint (void (%struct.foo*)* @_ZN3foo1fEv to i64), i64 0 }) 28 // CHECK: [[MEMFUNPTR]] = !MDDerivedType(tag: DW_TAG_ptr_to_member_type, {{.*}}baseType: [[FTYPE:![0-9]*]], {{.*}}extraData: !"_ZTS3foo") 29 // CHECK: [[FTYPE]] = !MDSubroutineType(types: [[FARGS:![0-9]*]]) 30 // CHECK: [[FARGS]] = !{null, [[FARG1:![0-9]*]]} 31 // CHECK: [[FARG1]] = !MDDerivedType(tag: DW_TAG_pointer_type, 32 // CHECK-SAME: baseType: !"_ZTS3foo" 33 // CHECK-NOT: line: 34 // CHECK-SAME: size: 64, align: 64 35 // CHECK-NOT: offset: 0 36 // CHECK-SAME: DIFlagArtificial 37 // 38 // CHECK: [[TCARG6]] = !MDTemplateValueParameter(name: "f", type: [[FUNPTR:![0-9]*]], value: void ()* @_ZN3foo1gEv) 39 // CHECK: [[FUNPTR]] = !MDDerivedType(tag: DW_TAG_pointer_type, baseType: [[FUNTYPE:![0-9]*]] 40 // CHECK: [[FUNTYPE]] = !MDSubroutineType(types: [[FUNARGS:![0-9]*]]) 41 // CHECK: [[FUNARGS]] = !{null} 42 // CHECK: [[TCARG7]] = !MDTemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "Is", value: [[TCARG7_VALS:![0-9]*]]) 43 // CHECK: [[TCARG7_VALS]] = !{[[TCARG7_1:![0-9]*]], [[TCARG7_2:![0-9]*]], [[TCARG7_3:![0-9]*]]} 44 // CHECK: [[TCARG7_1]] = !MDTemplateValueParameter(type: [[INT]], value: i32 1) 45 // CHECK: [[TCARG7_2]] = !MDTemplateValueParameter(type: [[INT]], value: i32 2) 46 // CHECK: [[TCARG7_3]] = !MDTemplateValueParameter(type: [[INT]], value: i32 3) 47 // 48 // We could just emit a declaration of 'foo' here, rather than the entire 49 // definition (same goes for any time we emit a member (function or data) 50 // pointer type) 51 // CHECK: [[FOO]] = !MDCompositeType(tag: DW_TAG_structure_type, name: "foo", {{.*}}identifier: "_ZTS3foo") 52 // CHECK: !MDSubprogram(name: "f", linkageName: "_ZN3foo1fEv", {{.*}}type: [[FTYPE:![0-9]*]] 53 // 54 55 // CHECK: !MDCompositeType(tag: DW_TAG_structure_type, name: "nested", 56 // CHECK-SAME: scope: !"_ZTS2TCIjLj2EXadL_Z3glbEEXadL_ZN3foo1eEEEXadL_ZNS0_1fEvEEXadL_ZNS0_1gEvEEJLi1ELi2ELi3EEE" 57 // CHECK-SAME: identifier: "[[TCNESTED:.*]]") 58 // CHECK: !MDCompositeType(tag: DW_TAG_structure_type, name: "TC<int, -3, nullptr, nullptr, nullptr, nullptr>" 59 // CHECK-SAME: templateParams: [[TCNARGS:![0-9]*]] 60 // CHECK-SAME: identifier: "[[TCNT:.*]]") 61 // CHECK: [[TCNARGS]] = !{[[TCNARG1:![0-9]*]], [[TCNARG2:![0-9]*]], [[TCNARG3:![0-9]*]], [[TCNARG4:![0-9]*]], [[TCNARG5:![0-9]*]], [[TCNARG6:![0-9]*]], [[TCNARG7:![0-9]*]]} 62 // CHECK: [[TCNARG1]] = !MDTemplateTypeParameter(name: "T", type: [[INT]]) 63 // CHECK: [[TCNARG2]] = !MDTemplateValueParameter(type: [[INT]], value: i32 -3) 64 // CHECK: [[TCNARG3]] = !MDTemplateValueParameter(name: "x", type: [[CINTPTR]], value: i8 0) 65 66 // The interesting null pointer: -1 for member data pointers (since they are 67 // just an offset in an object, they can be zero and non-null for the first 68 // member) 69 70 // CHECK: [[TCNARG4]] = !MDTemplateValueParameter(name: "a", type: [[MEMINTPTR]], value: i64 -1) 71 // 72 // In some future iteration we could possibly emit the value of a null member 73 // function pointer as '{ i64, i64 } zeroinitializer' as it may be handled 74 // naturally from the LLVM CodeGen side once we decide how to handle non-null 75 // member function pointers. For now, it's simpler just to emit the 'i8 0'. 76 // 77 // CHECK: [[TCNARG5]] = !MDTemplateValueParameter(name: "b", type: [[MEMFUNPTR]], value: i8 0) 78 // CHECK: [[TCNARG6]] = !MDTemplateValueParameter(name: "f", type: [[FUNPTR]], value: i8 0) 79 // CHECK: [[TCNARG7]] = !MDTemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "Is", value: [[EMPTY]]) 80 81 // FIXME: these parameters should probably be rendered as 'glb' rather than 82 // '&glb', since they're references, not pointers. 83 // CHECK: !MDCompositeType(tag: DW_TAG_structure_type, name: "NN<tmpl_impl, &glb, &glb>", 84 // CHECK-SAME: templateParams: [[NNARGS:![0-9]*]] 85 // CHECK-SAME: identifier: "[[NNT:.*]]") 86 // CHECK: [[NNARGS]] = !{[[NNARG1:![0-9]*]], [[NNARG2:![0-9]*]], [[NNARG3:![0-9]*]]} 87 // CHECK: [[NNARG1]] = !MDTemplateValueParameter(tag: DW_TAG_GNU_template_template_param, name: "tmpl", value: !"tmpl_impl") 88 // CHECK: [[NNARG2]] = !MDTemplateValueParameter(name: "lvr", type: [[INTLVR:![0-9]*]], value: i32* @glb) 89 // CHECK: [[INTLVR]] = !MDDerivedType(tag: DW_TAG_reference_type, baseType: [[INT]] 90 // CHECK: [[NNARG3]] = !MDTemplateValueParameter(name: "rvr", type: [[INTRVR:![0-9]*]], value: i32* @glb) 91 // CHECK: [[INTRVR]] = !MDDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: [[INT]] 92 93 // CHECK: !MDCompositeType(tag: DW_TAG_structure_type, name: "PaddingAtEndTemplate<&PaddedObj>" 94 // CHECK-SAME: templateParams: [[PTOARGS:![0-9]*]] 95 // CHECK: [[PTOARGS]] = !{[[PTOARG1:![0-9]*]]} 96 // CHECK: [[PTOARG1]] = !MDTemplateValueParameter(type: [[CONST_PADDINGATEND_PTR:![0-9]*]], value: %struct.PaddingAtEnd* @PaddedObj) 97 // CHECK: [[CONST_PADDINGATEND_PTR]] = !MDDerivedType(tag: DW_TAG_pointer_type, baseType: !"_ZTS12PaddingAtEnd", size: 64, align: 64) 98 99 // CHECK: !MDGlobalVariable(name: "tci", 100 // CHECK-SAME: type: !"[[TCNESTED]]" 101 // CHECK-SAME: variable: %"struct.TC<unsigned int, 2, &glb, &foo::e, &foo::f, &foo::g, 1, 2, 3>::nested"* @tci 102 103 // CHECK: !MDGlobalVariable(name: "tcn" 104 // CHECK-SAME: type: !"[[TCNT]]" 105 // CHECK-SAME: variable: %struct.TC* @tcn 106 107 // CHECK: !MDGlobalVariable(name: "nn" 108 // CHECK-SAME: type: !"[[NNT]]" 109 // CHECK-SAME: variable: %struct.NN* @nn 110 struct foo { 111 char pad[8]; // make the member pointer to 'e' a bit more interesting (nonzero) 112 int e; 113 void f(); 114 static void g(); 115 }; 116 117 typedef int foo::*foo_mem; 118 119 template<typename T, T, const int *x, foo_mem a, void (foo::*b)(), void (*f)(), int ...Is> 120 struct TC { 121 struct nested { 122 }; 123 }; 124 125 int glb; 126 void func(); 127 128 TC<unsigned, 2, &glb, &foo::e, &foo::f, &foo::g, 1, 2, 3>::nested tci; 129 TC<int, -3, nullptr, nullptr, nullptr, nullptr> tcn; 130 131 template<typename> 132 struct tmpl_impl { 133 }; 134 135 template <template <typename> class tmpl, int &lvr, int &&rvr> 136 struct NN { 137 }; 138 139 NN<tmpl_impl, glb, glb> nn; 140 141 struct PaddingAtEnd { 142 int i; 143 char c; 144 }; 145 146 PaddingAtEnd PaddedObj = {}; 147 148 template <PaddingAtEnd *> 149 struct PaddingAtEndTemplate { 150 }; 151 152 PaddingAtEndTemplate<&PaddedObj> PaddedTemplateObj; 153