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1; RUN: llc -debug-entry-values %s -o - -filetype=obj \2; RUN: | llvm-dwarfdump -verify - | FileCheck %s3;4; CHECK: No errors.5;6; The source code of the test case:7;8;extern int fn1();9;extern int fn3(int);10;11;__attribute__((noinline))12;void13;fn2 (int *arg) {14; int a = ++(*arg);15; fn3 (a);16;}17;18;__attribute__((noinline))19;int f() {20; int x = fn1();21; fn2 (&x);22; return 0;23;}24;25; ModuleID = 'test.c'26target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"27target triple = "x86_64-unknown-linux-gnu"28 29; Function Attrs: noinline nounwind uwtable30define dso_local void @fn2(ptr nocapture %arg) local_unnamed_addr !dbg !15 {31entry:32 call void @llvm.dbg.value(metadata ptr %arg, metadata !20, metadata !DIExpression()), !dbg !2233 %0 = load i32, ptr %arg, align 4, !dbg !2334 %inc = add nsw i32 %0, 1, !dbg !2335 store i32 %inc, ptr %arg, align 4, !dbg !2336 call void @llvm.dbg.value(metadata i32 %inc, metadata !21, metadata !DIExpression()), !dbg !2237 %call = tail call i32 @fn3(i32 %inc), !dbg !2338 ret void, !dbg !2339}40 41; Function Attrs: argmemonly nounwind willreturn42declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)43 44declare !dbg !4 dso_local i32 @fn3(i32) local_unnamed_addr45 46; Function Attrs: argmemonly nounwind willreturn47declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)48 49; Function Attrs: noinline nounwind uwtable50define dso_local i32 @f() local_unnamed_addr !dbg !24 {51entry:52 %x = alloca i32, align 453 call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %x), !dbg !2954 %call = tail call i32 (...) @fn1() #4, !dbg !2955 call void @llvm.dbg.value(metadata i32 %call, metadata !28, metadata !DIExpression()), !dbg !3056 store i32 %call, ptr %x, align 4, !dbg !2957 call void @llvm.dbg.value(metadata ptr %x, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !3058 call void @fn2(ptr nonnull %x), !dbg !2959 call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %x), !dbg !2960 ret i32 0, !dbg !2961}62 63declare !dbg !8 dso_local i32 @fn1(...) local_unnamed_addr64 65; Function Attrs: nounwind readnone speculatable willreturn66declare void @llvm.dbg.value(metadata, metadata, metadata)67 68!llvm.dbg.cu = !{!0}69!llvm.module.flags = !{!11, !12, !13}70!llvm.ident = !{!14}71 72!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)73!1 = !DIFile(filename: "test.c", directory: "dir")74!2 = !{}75!3 = !{!4, !8}76!4 = !DISubprogram(name: "fn3", scope: !1, file: !1, line: 2, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)77!5 = !DISubroutineType(types: !6)78!6 = !{!7, !7}79!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)80!8 = !DISubprogram(name: "fn1", scope: !1, file: !1, line: 1, type: !9, spFlags: DISPFlagOptimized, retainedNodes: !2)81!9 = !DISubroutineType(types: !10)82!10 = !{!7, null}83!11 = !{i32 2, !"Dwarf Version", i32 4}84!12 = !{i32 2, !"Debug Info Version", i32 3}85!13 = !{i32 1, !"wchar_size", i32 4}86!14 = !{!"clang version 10.0.0"}87!15 = distinct !DISubprogram(name: "fn2", scope: !1, file: !1, line: 6, type: !16, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !19)88!16 = !DISubroutineType(types: !17)89!17 = !{null, !18}90!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64)91!19 = !{!20, !21}92!20 = !DILocalVariable(name: "arg", arg: 1, scope: !15, file: !1, line: 6, type: !18)93!21 = !DILocalVariable(name: "a", scope: !15, file: !1, line: 7, type: !7)94!22 = !DILocation(line: 0, scope: !15)95!23 = !DILocation(line: 7, column: 11, scope: !15)96!24 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 12, type: !25, scopeLine: 12, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !27)97!25 = !DISubroutineType(types: !17)98!26 = !{!7}99!27 = !{!28}100!28 = !DILocalVariable(name: "x", scope: !24, file: !1, line: 13, type: !7)101!29 = !DILocation(line: 13, column: 3, scope: !24)102!30 = !DILocation(line: 0, scope: !24)103