1; RUN: opt -S -o - %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 | FileCheck %s 2 3declare i1 @make_condition() 4 5; CHECK-LABEL: @test1( 6; CHECK: and i1 [[COND:%.*]], [[COND]]{{$}} 7; CHECK: select i1 [[COND]] 8define void @test1() !dbg !6 { 9start: 10 %cond = call i1 @make_condition(), !dbg !8 11 br i1 %cond, label %then, label %else, !dbg !9 12 13then: ; preds = %start 14 %and = and i1 %cond, %cond, !dbg !10 15 br label %else, !dbg !11 16 17else: ; preds = %then, %start 18 %phi = phi i1 [ %cond, %start ], [ %and, %then ], !dbg !12 19 ret void, !dbg !13 20} 21 22!llvm.dbg.cu = !{!0} 23!llvm.debugify = !{!3, !4} 24!llvm.module.flags = !{!5} 25 26!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 27!1 = !DIFile(filename: "test.ll", directory: "/") 28!2 = !{} 29!3 = !{i32 6} 30!4 = !{i32 0} 31!5 = !{i32 2, !"Debug Info Version", i32 3} 32!6 = distinct !DISubprogram(name: "test1", linkageName: "test1", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) 33!7 = !DISubroutineType(types: !2) 34!8 = !DILocation(line: 1, column: 1, scope: !6) 35!9 = !DILocation(line: 2, column: 1, scope: !6) 36!10 = !DILocation(line: 3, column: 2, scope: !6) 37!11 = !DILocation(line: 4, column: 2, scope: !6) 38!12 = !DILocation(line: 5, column: 3, scope: !6) 39!13 = !DILocation(line: 6, column: 3, scope: !6) 40