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1; RUN: opt -S -strip-debug < %s | FileCheck %s2 3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"4target triple = "x86_64-apple-macosx10.12.0"5 6; CHECK-LABEL: _Z5test1v7; CHECK-NOT: br {{.*}} !llvm.loop8define void @_Z5test1v() !dbg !7 {9entry:10 br label %while.body, !dbg !911 12while.body:13 call void @_Z3barv(), !dbg !1014 br label %while.body, !dbg !11, !llvm.loop !1315 16return:17 ret void, !dbg !1418}19 20declare void @_Z3barv()21declare i1 @_Z3bazv()22 23; CHECK-LABEL: _Z5test2v24; CHECK: br {{.*}} !llvm.loop [[LOOP:![0-9]+]]25define void @_Z5test2v() !dbg !15 {26entry:27 br label %while.body, !dbg !1628 29while.body:30 call void @_Z3barv(), !dbg !1731 br label %while.body, !dbg !18, !llvm.loop !1932 33return:34 ret void, !dbg !2135}36 37; CHECK-LABEL: _Z5test3v38define void @_Z5test3v() !dbg !22 {39entry:40 br label %while.body, !dbg !2341 42while.body:43 %c = call i1 @_Z3bazv()44 br i1 %c, label %if, label %then45 46if:47 call void @_Z3barv(), !dbg !2448; CHECK: br {{.*}} !llvm.loop [[LOOP2:![0-9]+]]49 br label %while.body, !dbg !25, !llvm.loop !2650 51then:52; CHECK: br {{.*}} !llvm.loop [[LOOP2]]53 br label %while.body, !dbg !25, !llvm.loop !2654 55return:56 ret void, !dbg !2857}58 59; CHECK-LABEL: _Z5test4v60; CHECK-NOT: br {{.*}} !llvm.loop61define void @_Z5test4v() !dbg !30 {62entry:63 br label %while.body, !dbg !3164 65while.body:66 call void @_Z3barv(), !dbg !3267 br label %while.body, !dbg !33, !llvm.loop !3468 69return:70 ret void, !dbg !3671}72 73!llvm.dbg.cu = !{!0}74!llvm.module.flags = !{!3, !4, !5}75!llvm.ident = !{!6}76 77!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)78!1 = !DIFile(filename: "test.cpp", directory: "/tmp")79!2 = !{}80!3 = !{i32 2, !"Dwarf Version", i32 4}81!4 = !{i32 2, !"Debug Info Version", i32 3}82!5 = !{i32 1, !"PIC Level", i32 2}83!6 = !{!"clang version 4.0.0"}84!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)85!8 = !DISubroutineType(types: !2)86!9 = !DILocation(line: 4, column: 3, scope: !7)87!10 = !DILocation(line: 5, column: 5, scope: !7)88!11 = !DILocation(line: 4, column: 3, scope: !12)89!12 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)90!13 = distinct !{!13, !9}91!14 = !DILocation(line: 6, column: 1, scope: !7)92!15 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)93!16 = !DILocation(line: 8, column: 14, scope: !15)94!17 = !DILocation(line: 11, column: 5, scope: !15)95!18 = !DILocation(line: 10, column: 3, scope: !15)96!19 = distinct !{!19, !16, !20}97!20 = !{!"llvm.loop.unroll.enable"}98!21 = !DILocation(line: 12, column: 1, scope: !15)99!22 = distinct !DISubprogram(name: "test3", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)100!23 = !DILocation(line: 8, column: 14, scope: !22)101!24 = !DILocation(line: 11, column: 5, scope: !22)102!25 = !DILocation(line: 10, column: 3, scope: !22)103!26 = distinct !{!26, !23, !29, !27}104!27 = !{!"llvm.loop.unroll.enable"}105!28 = !DILocation(line: 12, column: 1, scope: !22)106!29 = !DILocation(line: 12, column: 1, scope: !22)107!30 = distinct !DISubprogram(name: "test4", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)108!31 = !DILocation(line: 8, column: 14, scope: !30)109!32 = !DILocation(line: 11, column: 5, scope: !30)110!33 = !DILocation(line: 10, column: 3, scope: !30)111!34 = distinct !{!34, !31, !35}112!35 = !DILocation(line: 12, column: 1, scope: !30)113!36 = !DILocation(line: 12, column: 1, scope: !30)114 115; CHECK-NOT: !DICompileUnit116; CHECK-NOT: !DIFile117; CHECK-NOT: !DISubprogram118; CHECK-NOT: !DISubroutineType119; CHECK-NOT: !DILocation120; CHECK-NOT: !DILexicalBlockFile121; CHECK: [[LOOP]] = distinct !{[[LOOP]], [[LOOP_UNROLL:![0-9]+]]}122; CHECK-NEXT: [[LOOP_UNROLL]] = !{!"llvm.loop.unroll.enable"}123; CHECK: [[LOOP2]] = distinct !{[[LOOP2]], [[LOOP_UNROLL]]}124; CHECK-NOT: !DILocation125