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1; RUN: opt -passes=deadargelim -S < %s | FileCheck %s2;test.c3;int s;4;5;void f2(int k) __attribute__((noinline)) {6; s++;7; k = s;8;}9;10;void f() __attribute__((noinline)) {11; f2(4);12;}13;14;int main()15;{16; f();17; return 0;18;}19 20target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"21 22@s = common dso_local local_unnamed_addr global i32 0, align 4, !dbg !023 24; Function Attrs: noinline nounwind uwtable25define dso_local void @f2(i32 %k) local_unnamed_addr !dbg !11 {26entry:27; CHECK: #dbg_value(i32 poison, !15, !DIExpression(), !1628 call void @llvm.dbg.value(metadata i32 %k, metadata !15, metadata !DIExpression()), !dbg !1629 %0 = load i32, ptr @s, align 4, !dbg !1730 %inc = add nsw i32 %0, 1, !dbg !1731 store i32 %inc, ptr @s, align 4, !dbg !1732 call void @llvm.dbg.value(metadata ptr @s, metadata !15, metadata !DIExpression(DW_OP_deref)), !dbg !1633 ret void, !dbg !1834}35 36; Function Attrs: noinline nounwind uwtable37define dso_local void @f() local_unnamed_addr !dbg !19 {38entry:39; CHECK: tail call void @f2(i32 poison), !dbg !2240 tail call void @f2(i32 4), !dbg !2241 ret void, !dbg !2342}43 44; Function Attrs: nounwind uwtable45define dso_local i32 @main() local_unnamed_addr !dbg !24 {46entry:47 tail call void @f(), !dbg !2748 ret i32 0, !dbg !2849}50 51; Function Attrs: nounwind readnone speculatable52declare void @llvm.dbg.value(metadata, metadata, metadata)53 54!llvm.dbg.cu = !{!2}55!llvm.module.flags = !{!7, !8, !9}56!llvm.ident = !{!10}57 58!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())59!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)60!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)61!3 = !DIFile(filename: "test.c", directory: "/dir")62!4 = !{}63!5 = !{!0}64!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)65!7 = !{i32 2, !"Dwarf Version", i32 4}66!8 = !{i32 2, !"Debug Info Version", i32 3}67!9 = !{i32 1, !"wchar_size", i32 4}68!10 = !{!"clang version 7.0.0"}69!11 = distinct !DISubprogram(name: "f2", scope: !3, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !14)70!12 = !DISubroutineType(types: !13)71!13 = !{null, !6}72!14 = !{!15}73!15 = !DILocalVariable(name: "k", arg: 1, scope: !11, file: !3, line: 3, type: !6)74!16 = !DILocation(line: 3, column: 13, scope: !11)75!17 = !DILocation(line: 4, column: 3, scope: !11)76!18 = !DILocation(line: 6, column: 1, scope: !11)77!19 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 8, type: !20, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !2, retainedNodes: !4)78!20 = !DISubroutineType(types: !21)79!21 = !{null}80!22 = !DILocation(line: 9, column: 2, scope: !19)81!23 = !DILocation(line: 10, column: 1, scope: !19)82!24 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 12, type: !25, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: true, unit: !2, retainedNodes: !4)83!25 = !DISubroutineType(types: !26)84!26 = !{!6}85!27 = !DILocation(line: 13, column: 2, scope: !24)86!28 = !DILocation(line: 14, column: 2, scope: !24)87