1 ; REQUIRES: object-emission 2 3 ; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | llvm-dwarfdump -v -debug-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]{{ *}}(DW_OP_addr 0x0, DW_OP_stack_value) 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 source_filename = "test/DebugInfo/X86/template.ll" 62 63 %"struct.y_impl<int>::nested" = type { i8 } 64 65 @glbl = global i32 0, align 4, !dbg !0 66 @n = global %"struct.y_impl<int>::nested" zeroinitializer, align 1, !dbg !4 67 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_template.cpp, i8* null }] 68 69 define internal void @__cxx_global_var_init() section ".text.startup" !dbg !17 { 70 entry: 71 %call = call i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv(), !dbg !20 72 store i32 %call, i32* @glbl, align 4, !dbg !20 73 ret void, !dbg !20 74 } 75 76 ; Function Attrs: nounwind uwtable 77 define linkonce_odr i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv() #0 !dbg !21 { 78 entry: 79 ret i32 3, !dbg !35 80 } 81 82 define internal void @_GLOBAL__sub_I_template.cpp() section ".text.startup" { 83 entry: 84 call void @__cxx_global_var_init(), !dbg !36 85 ret void 86 } 87 88 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" } 89 90 !llvm.dbg.cu = !{!11} 91 !llvm.module.flags = !{!14, !15} 92 !llvm.ident = !{!16} 93 94 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 95 !1 = !DIGlobalVariable(name: "glbl", scope: null, file: !2, line: 3, type: !3, isLocal: false, isDefinition: true) 96 !2 = !DIFile(filename: "template.cpp", directory: "/tmp/dbginfo") 97 !3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 98 !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression()) 99 !5 = !DIGlobalVariable(name: "n", scope: null, file: !2, line: 4, type: !6, isLocal: false, isDefinition: true) 100 !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "nested", scope: !7, file: !2, line: 2, size: 8, align: 8, elements: !8, identifier: "_ZTSN6y_implIiE6nestedE") 101 !7 = !DICompositeType(tag: DW_TAG_structure_type, name: "y_impl<int>", file: !2, line: 2, size: 8, align: 8, elements: !8, templateParams: !9, identifier: "_ZTS6y_implIiE") 102 !8 = !{} 103 !9 = !{!10} 104 !10 = !DITemplateTypeParameter(type: !3) 105 !11 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.6.0 (trunk 224394) (llvm/trunk 224384)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !8, retainedTypes: !12, globals: !13, imports: !8) 106 !12 = !{!7, !6} 107 !13 = !{!0, !4} 108 !14 = !{i32 2, !"Dwarf Version", i32 4} 109 !15 = !{i32 2, !"Debug Info Version", i32 3} 110 !16 = !{!"clang version 3.6.0 (trunk 224394) (llvm/trunk 224384)"} 111 !17 = distinct !DISubprogram(name: "__cxx_global_var_init", scope: !2, file: !2, line: 3, type: !18, isLocal: true, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !11, retainedNodes: !8) 112 !18 = !DISubroutineType(types: !19) 113 !19 = !{null} 114 !20 = !DILocation(line: 3, column: 12, scope: !17) 115 !21 = distinct !DISubprogram(name: "func<3, &glbl, y_impl, nullptr, 1, 2>", linkageName: "_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv", scope: !2, file: !2, line: 1, type: !22, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !11, templateParams: !24, retainedNodes: !8) 116 !22 = !DISubroutineType(types: !23) 117 !23 = !{!3} 118 !24 = !{!25, !26, !28, !29, !31} 119 !25 = !DITemplateValueParameter(name: "x", type: !3, value: i32 3) 120 !26 = !DITemplateValueParameter(type: !27, value: i32* @glbl) 121 !27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64) 122 !28 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_template_param, name: "y", value: !"y_impl") 123 !29 = !DITemplateValueParameter(name: "n", type: !30, value: i8 0) 124 !30 = !DIBasicType(tag: DW_TAG_unspecified_type, name: "decltype(nullptr)") 125 !31 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "z", value: !32) 126 !32 = !{!33, !34} 127 !33 = !DITemplateValueParameter(type: !3, value: i32 1) 128 !34 = !DITemplateValueParameter(type: !3, value: i32 2) 129 !35 = !DILocation(line: 1, column: 96, scope: !21) 130 !36 = !DILocation(line: 0, scope: !37) 131 !37 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_template.cpp", scope: !2, file: !2, type: !38, isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, unit: !11, retainedNodes: !8) 132 !38 = !DISubroutineType(types: !8) 133 134
