1 2; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | llvm-dwarfdump -v -debug-info - | FileCheck %s 3; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | not llvm-dwarfdump -verify - | FileCheck %s --check-prefix VERIFY 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() { 7; var<int> = 5; 8; return var<int>; 9; } 10; template<typename> struct y_impl { struct nested { }; }; 11; int glbl = func<3, &glbl, y_impl, nullptr, 1, 2>(); 12; y_impl<int>::nested n; 13 14; VERIFY-NOT: error: DIE has DW_AT_type with incompatible tag DW_TAG_unspecified_type 15; VERIFY: error: DIEs have overlapping address ranges 16 17; CHECK: [[INT:0x[0-9a-f]*]]:{{ *}}DW_TAG_base_type 18; CHECK-NEXT: DW_AT_name{{.*}} = "int" 19 20; CHECK: DW_TAG_structure_type 21; CHECK: DW_AT_name{{.*}}"y_impl<int>" 22; CHECK-NOT: {{TAG|NULL}} 23; CHECK: DW_TAG_template_type_parameter 24 25; CHECK: DW_TAG_variable 26; CHECK-NEXT: DW_AT_name{{.*}}"var" 27; CHECK-NOT: NULL 28; CHECK: DW_TAG_template_type_parameter 29; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 30; CHECK-NEXT: DW_AT_name{{.*}}= "T" 31 32 33; CHECK: DW_AT_name{{.*}}"func<3, &glbl, y_impl, nullptr, 1, 2>" 34; CHECK-NOT: NULL 35; CHECK: DW_TAG_template_value_parameter 36; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 37; CHECK-NEXT: DW_AT_name{{.*}}= "x" 38; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(3) 39 40; CHECK: DW_TAG_template_value_parameter 41; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INTPTR:0x[0-9a-f]*]]} 42 43; The address of the global 'glbl', followed by DW_OP_stack_value (9f), to use 44; the value immediately, rather than indirecting through the address. 45 46; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc]{{ *}}(DW_OP_addr 0x0, DW_OP_stack_value) 47; CHECK-NOT: NULL 48 49; CHECK: DW_TAG_GNU_template_template_param 50; CHECK-NEXT: DW_AT_name{{.*}}= "y" 51; CHECK-NEXT: DW_AT_GNU_template_name{{.*}}= "y_impl" 52; CHECK-NOT: NULL 53 54; CHECK: DW_TAG_template_value_parameter 55; CHECK-NEXT: DW_AT_type{{.*}}=> {[[NULLPTR:0x[0-9a-f]*]]} 56; CHECK-NEXT: DW_AT_name{{.*}}= "n" 57; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata]{{.*}}(0) 58 59; CHECK: DW_TAG_GNU_template_parameter_pack 60; CHECK-NOT: NULL 61; CHECK: DW_TAG_template_value_parameter 62; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 63; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(1) 64; CHECK-NOT: NULL 65; CHECK: DW_TAG_template_value_parameter 66; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 67; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(2) 68 69; CHECK: [[INTPTR]]:{{ *}}DW_TAG_pointer_type 70; CHECK-NEXT: DW_AT_type{{.*}} => {[[INT]]} 71 72; CHECK: [[NULLPTR]]:{{ *}}DW_TAG_unspecified_type 73; CHECK-NEXT: DW_AT_name{{.*}}= "decltype(nullptr)" 74 75source_filename = "test/DebugInfo/X86/template.ll" 76%"struct.y_impl<int>::nested" = type { i8 } 77 78@glbl = dso_local global i32 0, align 4, !dbg !0 79@_Z3varIiE = linkonce_odr dso_local global i32 0, align 4, !dbg !13 80@n = dso_local global %"struct.y_impl<int>::nested" zeroinitializer, align 1, !dbg !6 81@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_upstream_test.cpp, i8* null }] 82 83; Function Attrs: noinline uwtable 84define internal void @__cxx_global_var_init() #0 section ".text.startup" !dbg !21 { 85entry: 86 %call = call i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv(), !dbg !24 87 store i32 %call, i32* @glbl, align 4, !dbg !24 88 ret void, !dbg !24 89} 90 91; Function Attrs: noinline nounwind optnone uwtable 92define linkonce_odr dso_local i32 @_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv() #1 !dbg !25 { 93entry: 94 store i32 5, i32* @_Z3varIiE, align 4, !dbg !39 95 %0 = load i32, i32* @_Z3varIiE, align 4, !dbg !40 96 ret i32 %0, !dbg !41 97} 98 99; Function Attrs: noinline uwtable 100define internal void @_GLOBAL__sub_I_upstream_test.cpp() #0 section ".text.startup" !dbg !42 { 101entry: 102 call void @__cxx_global_var_init(), !dbg !44 103 ret void 104} 105 106attributes #0 = { nounwind uwtable } 107attributes #1 = { nounwind uwtable noinline optnone } 108 109!llvm.dbg.cu = !{!2} 110!llvm.module.flags = !{!17, !18, !19} 111!llvm.ident = !{!20} 112 113!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 114!1 = distinct !DIGlobalVariable(name: "glbl", scope: !2, file: !3, line: 7, type: !12, isLocal: false, isDefinition: true) 115!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 116!3 = !DIFile(filename: "upstream_test.cpp", directory: "/home/mvoss/src/92562") 117!4 = !{} 118!5 = !{!0, !6, !13} 119!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) 120!7 = distinct !DIGlobalVariable(name: "n", scope: !2, file: !3, line: 8, type: !8, isLocal: false, isDefinition: true)!8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "nested", scope: !9, file: !3, line: 6, size: 8, flags: DIFlagTypePassByValue, elements: !4, identifier: "_ZTSN6y_implIiE6nestedE") 121!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "y_impl<int>", file: !3, line: 6, size: 8, flags: DIFlagTypePassByValue, elements: !4, templateParams: !10, identifier: "_ZTS6y_implIiE") 122!10 = !{!11} 123!11 = !DITemplateTypeParameter(type: !12) 124!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 125!13 = !DIGlobalVariableExpression(var: !14, expr: !DIExpression()) 126!14 = distinct !DIGlobalVariable(name: "var", linkageName: "_Z3varIiE", scope: !2, file: !3, line: 1, type: !12, isLocal: false, isDefinition: true, templateParams: !15) 127!15 = !{!16} 128!16 = !DITemplateTypeParameter(name: "T", type: !12) 129!17 = !{i32 2, !"Dwarf Version", i32 4} 130!18 = !{i32 2, !"Debug Info Version", i32 3} 131!19 = !{i32 1, !"wchar_size", i32 4} 132!20 = !{!"clang version 7.0.0 "} 133!21 = distinct !DISubprogram(name: "__cxx_global_var_init", scope: !3, file: !3, line: 7, type: !22, isLocal: true, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) 134!22 = !DISubroutineType(types: !23) 135!23 = !{null} 136!24 = !DILocation(line: 7, column: 12, scope: !21) 137!25 = distinct !DISubprogram(name: "func<3, &glbl, y_impl, nullptr, 1, 2>", linkageName: "_Z4funcILi3EXadL_Z4glblEE6y_implLDn0EJLi1ELi2EEEiv", scope: !3, file: !3, line: 2, type: !26, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !2, templateParams: !28, retainedNodes: !4) 138!26 = !DISubroutineType(types: !27) 139!27 = !{!12} 140!28 = !{!29, !30, !32, !33, !35} 141!29 = !DITemplateValueParameter(name: "x", type: !12, value: i32 3) 142!30 = !DITemplateValueParameter(type: !31, value: i32* @glbl) 143!31 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) 144!32 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_template_param, name: "y", value: !"y_impl") 145!33 = !DITemplateValueParameter(name: "n", type: !34, value: i8 0) 146!34 = !DIBasicType(tag: DW_TAG_unspecified_type, name: "decltype(nullptr)") 147!35 = !DITemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "z", value: !36) 148!36 = !{!37, !38} 149!37 = !DITemplateValueParameter(type: !12, value: i32 1) 150!38 = !DITemplateValueParameter(type: !12, value: i32 2) 151!39 = !DILocation(line: 3, column: 12, scope: !25) 152!40 = !DILocation(line: 4, column: 10, scope: !25) 153!41 = !DILocation(line: 4, column: 3, scope: !25) 154!42 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_upstream_test.cpp", scope: !3, file: !3, type: !43, isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, unit: !2, retainedNodes: !4) 155!43 = !DISubroutineType(types: !4) 156!44 = !DILocation(line: 0, scope: !42) 157