1; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump --name resource - | FileCheck %s 2; CHECK: DW_TAG_formal_parameter 3; CHECK: DW_TAG_formal_parameter 4; CHECK-NEXT: DW_AT_location (DW_OP_reg1 W1) 5; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"resource" 6; 7; Inlined variable "resource"/!37 covers all blocks in its lexical scope. Check 8; that it is given a single location. 9; 10; Generated from: 11; typedef struct t *t_t; 12; extern unsigned int enable; 13; struct t { 14; struct q { 15; struct q *next; 16; unsigned long long resource; 17; } * s; 18; } * tt; 19; static unsigned long find(t_t t, unsigned long long resource) { 20; struct q *q; 21; q = t->s; 22; while (q) { 23; if (q->resource == resource) 24; return q; 25; q = q->next; 26; } 27; } 28; int g(t_t t, unsigned long long r) { 29; struct q *q; 30; q = find(t, r); 31; if (!q) 32; if (__builtin_expect(enable, 0)) { } 33; } 34 35; ModuleID = 'inlined-arg.c' 36source_filename = "inlined-arg.c" 37target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 38target triple = "arm64-apple-ios5.0.0" 39 40%struct.t = type { %struct.q* } 41%struct.q = type { %struct.q*, i64 } 42 43@tt = common local_unnamed_addr global %struct.t* null, align 8, !dbg !0 44 45; Function Attrs: norecurse nounwind readonly ssp uwtable 46define i32 @g(%struct.t* nocapture readonly %t, i64 %r) local_unnamed_addr !dbg !21 { 47entry: 48 call void @llvm.dbg.value(metadata %struct.t* %t, metadata !27, metadata !DIExpression()), !dbg !30 49 call void @llvm.dbg.value(metadata i64 %r, metadata !28, metadata !DIExpression()), !dbg !31 50 call void @llvm.dbg.value(metadata %struct.t* %t, metadata !32, metadata !DIExpression()), !dbg !39 51 call void @llvm.dbg.value(metadata i64 %r, metadata !37, metadata !DIExpression()), !dbg !41 52 %s.i = getelementptr inbounds %struct.t, %struct.t* %t, i64 0, i32 0, !dbg !42 53 %q.05.i = load %struct.q*, %struct.q** %s.i, align 8, !dbg !43, !tbaa !44 54 call void @llvm.dbg.value(metadata %struct.q* %q.05.i, metadata !38, metadata !DIExpression()), !dbg !48 55 %tobool6.i = icmp eq %struct.q* %q.05.i, null, !dbg !49 56 br i1 %tobool6.i, label %find.exit, label %while.body.i, !dbg !49 57 58while.body.i: ; preds = %entry, %if.end.i 59 %q.07.i = phi %struct.q* [ %q.0.i, %if.end.i ], [ %q.05.i, %entry ] 60 %resource1.i = getelementptr inbounds %struct.q, %struct.q* %q.07.i, i64 0, i32 1, !dbg !50 61 %0 = load i64, i64* %resource1.i, align 8, !dbg !50, !tbaa !53 62 %cmp.i = icmp eq i64 %0, %r, !dbg !56 63 br i1 %cmp.i, label %find.exit, label %if.end.i, !dbg !57 64 65if.end.i: ; preds = %while.body.i 66 %next.i = getelementptr inbounds %struct.q, %struct.q* %q.07.i, i64 0, i32 0, !dbg !58 67 %q.0.i = load %struct.q*, %struct.q** %next.i, align 8, !dbg !43, !tbaa !44 68 call void @llvm.dbg.value(metadata %struct.q* %q.0.i, metadata !38, metadata !DIExpression()), !dbg !48 69 %tobool.i = icmp eq %struct.q* %q.0.i, null, !dbg !49 70 br i1 %tobool.i, label %find.exit, label %while.body.i, !dbg !49, !llvm.loop !59 71 72find.exit: ; preds = %while.body.i, %if.end.i, %entry 73 call void @llvm.dbg.value(metadata %struct.q* undef, metadata !29, metadata !DIExpression()), !dbg !61 74 ret i32 undef, !dbg !62 75} 76 77; Function Attrs: nounwind readnone speculatable 78declare void @llvm.dbg.value(metadata, metadata, metadata) 79 80!llvm.dbg.cu = !{!2} 81!llvm.module.flags = !{!16, !17, !18, !19} 82!llvm.ident = !{!20} 83 84!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 85!1 = distinct !DIGlobalVariable(name: "tt", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true) 86!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git cd3671d5dabc8848619d872f994770167a44ac5a)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU) 87!3 = !DIFile(filename: "inlined-arg.c", directory: "") 88!4 = !{} 89!5 = !{!0} 90!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) 91!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !3, line: 3, size: 64, elements: !8) 92!8 = !{!9} 93!9 = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: !7, file: !3, line: 7, baseType: !10, size: 64) 94!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64) 95!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "q", file: !3, line: 4, size: 128, elements: !12) 96!12 = !{!13, !14} 97!13 = !DIDerivedType(tag: DW_TAG_member, name: "next", scope: !11, file: !3, line: 5, baseType: !10, size: 64) 98!14 = !DIDerivedType(tag: DW_TAG_member, name: "resource", scope: !11, file: !3, line: 6, baseType: !15, size: 64, offset: 64) 99!15 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned) 100!16 = !{i32 2, !"Dwarf Version", i32 2} 101!17 = !{i32 2, !"Debug Info Version", i32 3} 102!18 = !{i32 1, !"wchar_size", i32 4} 103!19 = !{i32 7, !"PIC Level", i32 2} 104!20 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git cd3671d5dabc8848619d872f994770167a44ac5a)"} 105!21 = distinct !DISubprogram(name: "g", scope: !3, file: !3, line: 19, type: !22, scopeLine: 19, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !26) 106!22 = !DISubroutineType(types: !23) 107!23 = !{!24, !25, !15} 108!24 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 109!25 = !DIDerivedType(tag: DW_TAG_typedef, name: "t_t", file: !3, line: 1, baseType: !6) 110!26 = !{!27, !28, !29} 111!27 = !DILocalVariable(name: "t", arg: 1, scope: !21, file: !3, line: 19, type: !25) 112!28 = !DILocalVariable(name: "r", arg: 2, scope: !21, file: !3, line: 19, type: !15) 113!29 = !DILocalVariable(name: "q", scope: !21, file: !3, line: 20, type: !10) 114!30 = !DILocation(line: 19, column: 11, scope: !21) 115!31 = !DILocation(line: 19, column: 33, scope: !21) 116!32 = !DILocalVariable(name: "t", arg: 1, scope: !33, file: !3, line: 10, type: !25) 117!33 = distinct !DISubprogram(name: "find", scope: !3, file: !3, line: 10, type: !34, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !36) 118!34 = !DISubroutineType(types: !35) 119!35 = !{!10, !25, !15} 120!36 = !{!32, !37, !38} 121!37 = !DILocalVariable(name: "resource", arg: 2, scope: !33, file: !3, line: 10, type: !15) 122!38 = !DILocalVariable(name: "q", scope: !33, file: !3, line: 11, type: !10) 123!39 = !DILocation(line: 10, column: 27, scope: !33, inlinedAt: !40) 124!40 = distinct !DILocation(line: 21, column: 7, scope: !21) 125!41 = !DILocation(line: 10, column: 49, scope: !33, inlinedAt: !40) 126!42 = !DILocation(line: 12, column: 10, scope: !33, inlinedAt: !40) 127!43 = !DILocation(line: 0, scope: !33, inlinedAt: !40) 128!44 = !{!45, !45, i64 0} 129!45 = !{!"any pointer", !46, i64 0} 130!46 = !{!"omnipotent char", !47, i64 0} 131!47 = !{!"Simple C/C++ TBAA"} 132!48 = !DILocation(line: 11, column: 13, scope: !33, inlinedAt: !40) 133!49 = !DILocation(line: 13, column: 3, scope: !33, inlinedAt: !40) 134!50 = !DILocation(line: 14, column: 12, scope: !51, inlinedAt: !40) 135!51 = distinct !DILexicalBlock(scope: !52, file: !3, line: 14, column: 9) 136!52 = distinct !DILexicalBlock(scope: !33, file: !3, line: 13, column: 13) 137!53 = !{!54, !55, i64 8} 138!54 = !{!"q", !45, i64 0, !55, i64 8} 139!55 = !{!"long long", !46, i64 0} 140!56 = !DILocation(line: 14, column: 21, scope: !51, inlinedAt: !40) 141!57 = !DILocation(line: 14, column: 9, scope: !52, inlinedAt: !40) 142!58 = !DILocation(line: 16, column: 12, scope: !52, inlinedAt: !40) 143!59 = distinct !{!59, !49, !60} 144!60 = !DILocation(line: 17, column: 3, scope: !33, inlinedAt: !40) 145!61 = !DILocation(line: 20, column: 13, scope: !21) 146!62 = !DILocation(line: 24, column: 1, scope: !21) 147