1 ; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s 2 ; Generated at -O2 from: 3 ; bool c(); 4 ; void f(); 5 ; bool start() { 6 ; bool result = c(); 7 ; if (!c()) { 8 ; result = false; 9 ; goto exit; 10 ; } 11 ; f(); 12 ; result = true; 13 ; exit: 14 ; return result; 15 ; } 16 ; 17 ; The constant should NOT be available for the entire function. 18 ; CHECK-NOT: DW_AT_const_value 19 ; CHECK: .debug_loc contents: 20 ; CHECK-NEXT: 0x00000000: 21 ; CHECK-NEXT: {{.*}}: DW_OP_constu 0x1, DW_OP_stack_value 22 23 source_filename = "test.ii" 24 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 25 target triple = "x86_64-apple-macosx10.12.0" 26 27 ; Function Attrs: noimplicitfloat noredzone nounwind optsize 28 define zeroext i1 @_Z5startv() local_unnamed_addr #0 !dbg !7 { 29 entry: 30 %call = tail call zeroext i1 @_Z1cv() #3, !dbg !13 31 %call1 = tail call zeroext i1 @_Z1cv() #3, !dbg !14 32 br i1 %call1, label %if.end, label %exit, !dbg !16 33 34 if.end: ; preds = %entry 35 tail call void @_Z1fv() #3, !dbg !17 36 tail call void @llvm.dbg.value(metadata i8 1, metadata !12, metadata !18), !dbg !19 37 br label %exit, !dbg !20 38 39 exit: ; preds = %entry, %if.end 40 %result.0 = phi i1 [ true, %if.end ], [ false, %entry ] 41 ret i1 %result.0, !dbg !21 42 } 43 44 ; Function Attrs: noimplicitfloat noredzone optsize 45 declare zeroext i1 @_Z1cv() local_unnamed_addr #1 46 47 ; Function Attrs: noimplicitfloat noredzone optsize 48 declare void @_Z1fv() local_unnamed_addr #1 49 50 ; Function Attrs: nounwind readnone speculatable 51 declare void @llvm.dbg.value(metadata, metadata, metadata) #2 52 53 attributes #0 = { noimplicitfloat noredzone nounwind optsize } 54 attributes #1 = { noimplicitfloat noredzone optsize } 55 attributes #2 = { nounwind readnone speculatable } 56 attributes #3 = { nobuiltin noimplicitfloat noredzone nounwind optsize } 57 58 !llvm.dbg.cu = !{!0} 59 !llvm.module.flags = !{!3, !4, !5} 60 !llvm.ident = !{!6} 61 62 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 63 !1 = !DIFile(filename: "test.ii", directory: "/") 64 !2 = !{} 65 !3 = !{i32 2, !"Dwarf Version", i32 4} 66 !4 = !{i32 2, !"Debug Info Version", i32 3} 67 !5 = !{i32 1, !"wchar_size", i32 4} 68 !6 = !{!"clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)"} 69 !7 = distinct !DISubprogram(name: "start", linkageName: "_Z5startv", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11) 70 !8 = !DISubroutineType(types: !9) 71 !9 = !{!10} 72 !10 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean) 73 !11 = !{!12} 74 !12 = !DILocalVariable(name: "result", scope: !7, file: !1, line: 4, type: !10) 75 !13 = !DILocation(line: 4, column: 17, scope: !7) 76 !14 = !DILocation(line: 5, column: 8, scope: !15) 77 !15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 5, column: 7) 78 !16 = !DILocation(line: 5, column: 7, scope: !7) 79 !17 = !DILocation(line: 9, column: 3, scope: !7) 80 !18 = !DIExpression() 81 !19 = !DILocation(line: 4, column: 8, scope: !7) 82 !20 = !DILocation(line: 10, column: 3, scope: !7) 83 !21 = !DILocation(line: 12, column: 3, scope: !7) 84
