| ; RUN: llc -O1 %s -mtriple=x86_64 -filetype=obj -o %t && llvm-dwarfdump -debug-line %t | FileCheck -v --check-prefix=LINE-TABLE %s |
| |
| ; based on |
| ; |
| ; 1: int bar(); |
| ; 2: int baz(); |
| ; 3; |
| ; 4: int foo(int a) { |
| ; 5: if (a > 20) |
| ; 6: return bar(); |
| ; 7: else |
| ; 8: return baz(); |
| ; 9: } |
| ; |
| ; compiled with -g -S -emit-llvm -O1 |
| |
| |
| ; LINE-TABLE: .debug_line contents: |
| ; LINE-TABLE: Line table prologue: |
| ; LINE-TABLE: total_length: 0x00000069 |
| ; LINE-TABLE: format: DWARF32 |
| ; LINE-TABLE: version: 5 |
| ; LINE-TABLE: address_size: 8 |
| ; LINE-TABLE: seg_select_size: 0 |
| ; LINE-TABLE: prologue_length: 0x00000037 |
| |
| ; LINE-TABLE: Address Line Column File ISA Discriminator Flags |
| ; LINE-TABLE-NEXT: ------------------ ------ ------ ------ --- ------------- ------------- |
| ; LINE-TABLE-NEXT: 0x0000000000000000 4 0 0 0 0 is_stmt |
| ; LINE-TABLE-NEXT: 0x0000000000000001 5 9 0 0 0 is_stmt prologue_end |
| ; LINE-TABLE-NEXT: 0x0000000000000004 5 7 0 0 0 |
| ; LINE-TABLE-NEXT: 0x0000000000000006 6 12 0 0 0 is_stmt |
| ; LINE-TABLE-NEXT: 0x000000000000000b 9 1 0 0 0 is_stmt epilogue_begin |
| ; LINE-TABLE-NEXT: 0x000000000000000d 8 12 0 0 0 is_stmt |
| ; LINE-TABLE-NEXT: 0x0000000000000012 9 1 0 0 0 is_stmt epilogue_begin |
| ; LINE-TABLE-NEXT: 0x0000000000000014 9 1 0 0 0 is_stmt end_sequence |
| |
| |
| |
| |
| ; Function Attrs: mustprogress uwtable |
| define dso_local noundef i32 @_Z3fooi(i32 noundef %a) local_unnamed_addr #0 !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %a, metadata !13, metadata !DIExpression()), !dbg !14 |
| %cmp = icmp sgt i32 %a, 20, !dbg !15 |
| br i1 %cmp, label %if.then, label %if.else, !dbg !17 |
| |
| if.then: ; preds = %entry |
| %call = call noundef i32 @_Z3barv(), !dbg !18 |
| br label %return, !dbg !19 |
| |
| if.else: ; preds = %entry |
| %call1 = call noundef i32 @_Z3bazv(), !dbg !20 |
| br label %return, !dbg !21 |
| |
| return: ; preds = %if.else, %if.then |
| %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ], !dbg !22 |
| ret i32 %retval.0, !dbg !23 |
| } |
| |
| declare !dbg !24 dso_local noundef i32 @_Z3barv() local_unnamed_addr #1 |
| |
| declare !dbg !28 dso_local noundef i32 @_Z3bazv() local_unnamed_addr #1 |
| |
| ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 15.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "q.cpp", directory: "/", checksumkind: CSK_MD5, checksum: "6b5f6118d466ba2f6510ac0790b09bef") |
| !2 = !{i32 7, !"Dwarf Version", i32 5} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"wchar_size", i32 4} |
| !5 = !{i32 7, !"uwtable", i32 2} |
| !6 = !{i32 7, !"frame-pointer", i32 2} |
| !7 = !{!"clang version 15.0.0"} |
| !8 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!11, !11} |
| !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !12 = !{!13} |
| !13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 4, type: !11) |
| !14 = !DILocation(line: 0, scope: !8) |
| !15 = !DILocation(line: 5, column: 9, scope: !16) |
| !16 = distinct !DILexicalBlock(scope: !8, file: !1, line: 5, column: 7) |
| !17 = !DILocation(line: 5, column: 7, scope: !8) |
| !18 = !DILocation(line: 6, column: 12, scope: !16) |
| !19 = !DILocation(line: 6, column: 5, scope: !16) |
| !20 = !DILocation(line: 8, column: 12, scope: !16) |
| !21 = !DILocation(line: 8, column: 5, scope: !16) |
| !22 = !DILocation(line: 0, scope: !16) |
| !23 = !DILocation(line: 9, column: 1, scope: !8) |
| !24 = !DISubprogram(name: "bar", linkageName: "_Z3barv", scope: !1, file: !1, line: 1, type: !25, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !27) |
| !25 = !DISubroutineType(types: !26) |
| !26 = !{!11} |
| !27 = !{} |
| !28 = !DISubprogram(name: "baz", linkageName: "_Z3bazv", scope: !1, file: !1, line: 2, type: !25, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !27) |
