1 ; RUN: opt -S -o - %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 | FileCheck %s
3 declare i1 @make_condition()
6 ; CHECK: and i1 [[COND:%.*]], [[COND]]{{$}}
7 ; CHECK: select i1 [[COND]]
8 define void @test1() !dbg !6 {
10 %cond = call i1 @make_condition(), !dbg !8
11 br i1 %cond, label %then, label %else, !dbg !9
13 then: ; preds = %start
14 %and = and i1 %cond, %cond, !dbg !10
15 br label %else, !dbg !11
17 else: ; preds = %then, %start
18 %phi = phi i1 [ %cond, %start ], [ %and, %then ], !dbg !12
23 !llvm.debugify = !{!3, !4}
24 !llvm.module.flags = !{!5}
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: "/")
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)