1; RUN: opt -S -strip-debug < %s | FileCheck %s 2 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: _Z5test1v 7; CHECK-NOT: br {{.*}} !llvm.loop 8define void @_Z5test1v() !dbg !7 { 9entry: 10 br label %while.body, !dbg !9 11 12while.body: 13 call void @_Z3barv(), !dbg !10 14 br label %while.body, !dbg !11, !llvm.loop !13 15 16return: 17 ret void, !dbg !14 18} 19 20declare void @_Z3barv() 21declare i1 @_Z3bazv() 22 23; CHECK-LABEL: _Z5test2v 24; CHECK: br {{.*}} !llvm.loop [[LOOP:![0-9]+]] 25define void @_Z5test2v() !dbg !15 { 26entry: 27 br label %while.body, !dbg !16 28 29while.body: 30 call void @_Z3barv(), !dbg !17 31 br label %while.body, !dbg !18, !llvm.loop !19 32 33return: 34 ret void, !dbg !21 35} 36 37; CHECK-LABEL: _Z5test3v 38define void @_Z5test3v() !dbg !22 { 39entry: 40 br label %while.body, !dbg !23 41 42while.body: 43 %c = call i1 @_Z3bazv() 44 br i1 %c, label %if, label %then 45 46if: 47 call void @_Z3barv(), !dbg !24 48; CHECK: br {{.*}} !llvm.loop [[LOOP2:![0-9]+]] 49 br label %while.body, !dbg !25, !llvm.loop !26 50 51then: 52; CHECK: br {{.*}} !llvm.loop [[LOOP2]] 53 br label %while.body, !dbg !25, !llvm.loop !26 54 55return: 56 ret void, !dbg !28 57} 58 59; CHECK-LABEL: _Z5test4v 60; CHECK-NOT: br {{.*}} !llvm.loop 61define void @_Z5test4v() !dbg !30 { 62entry: 63 br label %while.body, !dbg !31 64 65while.body: 66 call void @_Z3barv(), !dbg !32 67 br label %while.body, !dbg !33, !llvm.loop !34 68 69return: 70 ret void, !dbg !36 71} 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: !DICompileUnit 116; CHECK-NOT: !DIFile 117; CHECK-NOT: !DISubprogram 118; CHECK-NOT: !DISubroutineType 119; CHECK-NOT: !DILocation 120; CHECK-NOT: !DILexicalBlockFile 121; 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: !DILocation 125