1; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -strip-debug < %s | FileCheck %s 2; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s 3 4; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -strip-debug < %s --try-experimental-debuginfo-iterators | FileCheck %s 5; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s --try-experimental-debuginfo-iterators | FileCheck %s 6 7; Test case for BUG-27615 8; Test that simplify cond branch produce same result for debug and non-debug builds 9; CHECK: select i1 %or.cond, i32 -1, i32 5 10; CHECK-NOT: bb1: 11 12; ModuleID = './csmith107.i.debug.ll' 13source_filename = "./csmith107.i.debug.ll" 14 15@a = global i16 0, !dbg !0 16@b = global i32 0, !dbg !4 17@c = global ptr null, !dbg !9 18 19define i16 @fn1() !dbg !17 { 20bb2: 21 store i32 -1, ptr @b, align 1 22 %_tmp1.pre = load i16, ptr @a, align 1, !dbg !20 23 %_tmp2.pre = load ptr, ptr @c, align 1 24 tail call void @llvm.dbg.value(metadata i16 6, metadata !22, metadata !23), !dbg !24 25 tail call void @llvm.dbg.value(metadata i16 %_tmp1.pre, metadata !25, metadata !23), !dbg !20 26 %_tmp3 = load i16, ptr %_tmp2.pre, align 1 27 %_tmp4 = icmp ne i16 %_tmp3, 0 28 %_tmp6 = icmp ne i16 %_tmp1.pre, 0 29 %or.cond = and i1 %_tmp6, %_tmp4 30 br i1 %or.cond, label %bb5, label %bb1 31 32bb1: ; preds = %bb2 33 store i32 5, ptr @b, align 1 34 br label %bb5 35 36bb5: ; preds = %bb1, %bb2 37 ret i16 0 38} 39 40; Function Attrs: nounwind readnone 41declare void @llvm.dbg.value(metadata, metadata, metadata) #0 42 43attributes #0 = { nounwind readnone } 44 45!llvm.dbg.cu = !{!12} 46!llvm.module.flags = !{!15, !16} 47 48!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 49!1 = !DIGlobalVariable(name: "a", scope: null, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true) 50!2 = !DIFile(filename: "csmith107.i.c", directory: "/tmp") 51!3 = !DIBasicType(name: "int", size: 16, align: 16, encoding: DW_ATE_signed) 52!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression()) 53!5 = !DIGlobalVariable(name: "b", scope: null, file: !2, line: 3, type: !6, isLocal: false, isDefinition: true) 54!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint32_t", file: !2, line: 1, baseType: !7) 55!7 = !DIDerivedType(tag: DW_TAG_typedef, name: "__u32_t", file: !2, baseType: !8) 56!8 = !DIBasicType(name: "unsigned long", size: 32, align: 16, encoding: DW_ATE_unsigned) 57!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression()) 58!10 = !DIGlobalVariable(name: "c", scope: null, file: !2, line: 4, type: !11, isLocal: false, isDefinition: true) 59!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 16, align: 16) 60!12 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "FlexC Compiler v6.36 (LLVM)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !13, retainedTypes: !13, globals: !14) 61!13 = !{} 62!14 = !{!0, !4, !9} 63!15 = !{i32 2, !"Dwarf Version", i32 4} 64!16 = !{i32 2, !"Debug Info Version", i32 3} 65!17 = distinct !DISubprogram(name: "fn1", scope: !2, file: !2, line: 5, type: !18, isLocal: false, isDefinition: true, scopeLine: 5, isOptimized: false, unit: !12, retainedNodes: !13) 66!18 = !DISubroutineType(types: !19) 67!19 = !{!3} 68!20 = !DILocation(line: 8, column: 16, scope: !21) 69!21 = !DILexicalBlock(scope: !17, file: !2, line: 7, column: 29) 70!22 = !DILocalVariable(name: "d", scope: !21, line: 8, type: !3) 71!23 = !DIExpression() 72!24 = !DILocation(line: 8, column: 9, scope: !21) 73!25 = !DILocalVariable(name: "e", scope: !21, line: 8, type: !3) 74 75