| ; RUN: llc -debug-entry-values %s -o - -filetype=obj \ |
| ; RUN: | llvm-dwarfdump -verify - | FileCheck %s |
| ; |
| ; CHECK: No errors. |
| ; |
| ; The source code of the test case: |
| ; |
| ;extern int fn1(); |
| ;extern int fn3(int); |
| ; |
| ;__attribute__((noinline)) |
| ;void |
| ;fn2 (int *arg) { |
| ; int a = ++(*arg); |
| ; fn3 (a); |
| ;} |
| ; |
| ;__attribute__((noinline)) |
| ;int f() { |
| ; int x = fn1(); |
| ; fn2 (&x); |
| ; return 0; |
| ;} |
| ; |
| ; ModuleID = 'test.c' |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local void @fn2(i32* nocapture %arg) local_unnamed_addr !dbg !15 { |
| entry: |
| call void @llvm.dbg.value(metadata i32* %arg, metadata !20, metadata !DIExpression()), !dbg !22 |
| %0 = load i32, i32* %arg, align 4, !dbg !23 |
| %inc = add nsw i32 %0, 1, !dbg !23 |
| store i32 %inc, i32* %arg, align 4, !dbg !23 |
| call void @llvm.dbg.value(metadata i32 %inc, metadata !21, metadata !DIExpression()), !dbg !22 |
| %call = tail call i32 @fn3(i32 %inc), !dbg !23 |
| ret void, !dbg !23 |
| } |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) |
| |
| declare !dbg !4 dso_local i32 @fn3(i32) local_unnamed_addr |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local i32 @f() local_unnamed_addr !dbg !24 { |
| entry: |
| %x = alloca i32, align 4 |
| %0 = bitcast i32* %x to i8*, !dbg !29 |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %0), !dbg !29 |
| %call = tail call i32 (...) @fn1() #4, !dbg !29 |
| call void @llvm.dbg.value(metadata i32 %call, metadata !28, metadata !DIExpression()), !dbg !30 |
| store i32 %call, i32* %x, align 4, !dbg !29 |
| call void @llvm.dbg.value(metadata i32* %x, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !30 |
| call void @fn2(i32* nonnull %x), !dbg !29 |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %0), !dbg !29 |
| ret i32 0, !dbg !29 |
| } |
| |
| declare !dbg !8 dso_local i32 @fn1(...) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!11, !12, !13} |
| !llvm.ident = !{!14} |
| |
| !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) |
| !1 = !DIFile(filename: "test.c", directory: "dir") |
| !2 = !{} |
| !3 = !{!4, !8} |
| !4 = !DISubprogram(name: "fn3", scope: !1, file: !1, line: 2, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{!7, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !DISubprogram(name: "fn1", scope: !1, file: !1, line: 1, type: !9, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!7, null} |
| !11 = !{i32 2, !"Dwarf Version", i32 4} |
| !12 = !{i32 2, !"Debug Info Version", i32 3} |
| !13 = !{i32 1, !"wchar_size", i32 4} |
| !14 = !{!"clang version 10.0.0"} |
| !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) |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{null, !18} |
| !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) |
| !19 = !{!20, !21} |
| !20 = !DILocalVariable(name: "arg", arg: 1, scope: !15, file: !1, line: 6, type: !18, flags: DIFlagArgumentNotModified) |
| !21 = !DILocalVariable(name: "a", scope: !15, file: !1, line: 7, type: !7) |
| !22 = !DILocation(line: 0, scope: !15) |
| !23 = !DILocation(line: 7, column: 11, scope: !15) |
| !24 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 12, type: !25, scopeLine: 12, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !27) |
| !25 = !DISubroutineType(types: !17) |
| !26 = !{!7} |
| !27 = !{!28} |
| !28 = !DILocalVariable(name: "x", scope: !24, file: !1, line: 13, type: !7) |
| !29 = !DILocation(line: 13, column: 3, scope: !24) |
| !30 = !DILocation(line: 0, scope: !24) |