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1; RUN: llc -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s2; 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_value19; CHECK: .debug_loc contents:20; CHECK-NEXT: 0x00000000:21; CHECK-NEXT: {{.*}}: DW_OP_lit1, DW_OP_stack_value22 23source_filename = "test.ii"24target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"25target triple = "x86_64-apple-macosx10.12.0"26 27; Function Attrs: noimplicitfloat noredzone nounwind optsize28define zeroext i1 @_Z5startv() local_unnamed_addr #0 !dbg !7 {29entry:30 %call = tail call zeroext i1 @_Z1cv() #3, !dbg !1331 %call1 = tail call zeroext i1 @_Z1cv() #3, !dbg !1432 br i1 %call1, label %if.end, label %exit, !dbg !1633 34if.end: ; preds = %entry35 tail call void @_Z1fv() #3, !dbg !1736 tail call void @llvm.dbg.value(metadata i8 1, metadata !12, metadata !18), !dbg !1937 br label %exit, !dbg !2038 39exit: ; preds = %entry, %if.end40 %result.0 = phi i1 [ true, %if.end ], [ false, %entry ]41 ret i1 %result.0, !dbg !2142}43 44; Function Attrs: noimplicitfloat noredzone optsize45declare zeroext i1 @_Z1cv() local_unnamed_addr #146 47; Function Attrs: noimplicitfloat noredzone optsize48declare void @_Z1fv() local_unnamed_addr #149 50; Function Attrs: nounwind readnone speculatable51declare void @llvm.dbg.value(metadata, metadata, metadata) #252 53attributes #0 = { noimplicitfloat noredzone nounwind optsize }54attributes #1 = { noimplicitfloat noredzone optsize }55attributes #2 = { nounwind readnone speculatable }56attributes #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