1 ; REQUIRES: object-emission 2 3 ; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s 4 5 ; IR generated with `clang++ -g -emit-llvm -S` from the following code: 6 ; template<int x, int*, template<typename> class y, decltype(nullptr) n, int ...z> int func() { return 3; } 7 ; template<typename> struct y_impl { struct nested { }; }; 8 ; int glbl = func<3, &glbl, y_impl, nullptr, 1, 2>(); 9 ; y_impl<int>::nested n; 10 11 ; CHECK: [[INT:0x[0-9a-f]*]]:{{ *}}DW_TAG_base_type 12 ; CHECK-NEXT: DW_AT_name{{.*}} = "int" 13 14 ; CHECK: DW_TAG_structure_type 15 ; CHECK-NEXT: DW_AT_name{{.*}}"y_impl<int>" 16 ; CHECK-NOT: NULL 17 ; CHECK: DW_TAG_template_type_parameter 18 19 ; CHECK: DW_AT_name{{.*}}"func<3, &glbl, y_impl, nullptr, 1, 2>" 20 ; CHECK-NOT: NULL 21 ; CHECK: DW_TAG_template_value_parameter 22 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 23 ; CHECK-NEXT: DW_AT_name{{.*}}= "x" 24 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(3) 25 26 ; CHECK: DW_TAG_template_value_parameter 27 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INTPTR:0x[0-9a-f]*]]} 28 29 ; The address of the global 'glbl', followed by DW_OP_stack_value (9f), to use 30 ; the value immediately, rather than indirecting through the address. 31 32 ; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc]{{ *}}(<0xa> 03 00 00 00 00 00 00 00 00 9f ) 33 ; CHECK-NOT: NULL 34 35 ; CHECK: DW_TAG_GNU_template_template_param 36 ; CHECK-NEXT: DW_AT_name{{.*}}= "y" 37 ; CHECK-NEXT: DW_AT_GNU_template_name{{.*}}= "y_impl" 38 ; CHECK-NOT: NULL 39 40 ; CHECK: DW_TAG_template_value_parameter 41 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[NULLPTR:0x[0-9a-f]*]]} 42 ; CHECK-NEXT: DW_AT_name{{.*}}= "n" 43 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata]{{.*}}(0) 44 45 ; CHECK: DW_TAG_GNU_template_parameter_pack 46 ; CHECK-NOT: NULL 47 ; CHECK: DW_TAG_template_value_parameter 48 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 49 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(1) 50 ; CHECK-NOT: NULL 51 ; CHECK: DW_TAG_template_value_parameter 52 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 53 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(2) 54 55 ; CHECK: [[INTPTR]]:{{ *}}DW_TAG_pointer_type 56 ; CHECK-NEXT: DW_AT_type{{.*}} => {[[INT]]} 57 58 ; CHECK: [[NULLPTR]]:{{ *}}DW_TAG_unspecified_type 59 ; CHECK-NEXT: DW_AT_name{{.*}}= "decltype(nullptr)" 60 61 %"struct.y_impl<int>::nested" = type { i8 } 62 63 @glbl = global i32 0, align 4 64 @n = global %"struct.y_impl<int>::nested" zeroinitializer, align 1 65 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_template.cpp, i8* null }] 66 67 define internal void @__cxx_global_var_init() section ".text.startup" !dbg !10 { 68 entry: 69 %call = call i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv(), !dbg !36 70 store i32 %call, i32* @glbl, align 4, !dbg !36 71 ret void, !dbg !36 72 } 73 74 ; Function Attrs: nounwind uwtable 75 define linkonce_odr i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv() #0 !dbg !14 { 76 entry: 77 ret i32 3, !dbg !37 78 } 79 80 define internal void @_GLOBAL__sub_I_template.cpp() section ".text.startup" { 81 entry: 82 call void @__cxx_global_var_init(), !dbg !38 83 ret void 84 } 85 86 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 87 88 !llvm.dbg.cu = !{!0} 89 !llvm.module.flags = !{!33, !34} 90 !llvm.ident = !{!35} 91 92 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (trunk 224394) (llvm/trunk 224384)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !9, globals: !30, imports: !2) 93 !1 = !DIFile(filename: "template.cpp", directory: "/tmp/dbginfo") 94 !2 = !{} 95 !3 = !{!4, !8} 96 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "y_impl<int>", line: 2, size: 8, align: 8, file: !1, elements: !2, templateParams: !5, identifier: "_ZTS6y_implIiE") 97 !5 = !{!6} 98 !6 = !DITemplateTypeParameter(type: !7) 99 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 100 !8 = !DICompositeType(tag: DW_TAG_structure_type, name: "nested", line: 2, size: 8, align: 8, file: !1, scope: !"_ZTS6y_implIiE", elements: !2, identifier: "_ZTSN6y_implIiE6nestedE") 101 !9 = !{!10, !14, !28} 102 !10 = distinct !DISubprogram(name: "__cxx_global_var_init", line: 3, isLocal: true, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !11, type: !12, variables: !2) 103 !11 = !DIFile(filename: "template.cpp", directory: "/tmp/dbginfo") 104 !12 = !DISubroutineType(types: !13) 105 !13 = !{null} 106 !14 = distinct !DISubprogram(name: "func<3, &glbl, y_impl, nullptr, 1, 2>", linkageName: "_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !11, type: !15, templateParams: !17, variables: !2) 107 !15 = !DISubroutineType(types: !16) 108 !16 = !{!7} 109 !17 = !{!18, !19, !21, !22, !24} 110 !18 = !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, name: "x", type: !7, value: i32 3) 111 !19 = !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, type: !20, value: i32* @glbl) 112 !20 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !7) 113 !21 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_template_param, name: "y", type: null, value: !"y_impl") 114 !22 = !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, name: "n", type: !23, value: i8 0) 115 !23 = !DIBasicType(tag: DW_TAG_unspecified_type, name: "decltype(nullptr)") 116 !24 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "z", type: null, value: !25) 117 !25 = !{!26, !27} 118 !26 = !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, type: !7, value: i32 1) 119 !27 = !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, type: !7, value: i32 2) 120 !28 = distinct !DISubprogram(name: "", linkageName: "_GLOBAL__sub_I_template.cpp", isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, file: !1, scope: !11, type: !29, variables: !2) 121 !29 = !DISubroutineType(types: !2) 122 !30 = !{!31, !32} 123 !31 = !DIGlobalVariable(name: "glbl", line: 3, isLocal: false, isDefinition: true, scope: null, file: !11, type: !7, variable: i32* @glbl) 124 !32 = !DIGlobalVariable(name: "n", line: 4, isLocal: false, isDefinition: true, scope: null, file: !11, type: !"_ZTSN6y_implIiE6nestedE", variable: %"struct.y_impl<int>::nested"* @n) 125 !33 = !{i32 2, !"Dwarf Version", i32 4} 126 !34 = !{i32 2, !"Debug Info Version", i32 3} 127 !35 = !{!"clang version 3.6.0 (trunk 224394) (llvm/trunk 224384)"} 128 !36 = !DILocation(line: 3, column: 12, scope: !10) 129 !37 = !DILocation(line: 1, column: 96, scope: !14) 130 !38 = !DILocation(line: 0, scope: !28) 131
