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      1 ; RUN: llc -mtriple=x86_64-apple-macosx < %s -verify-machineinstrs | FileCheck %s
      2 ;
      3 ; PR16143: MachineOperand::setIsKill(bool): Assertion
      4 ;
      5 ; verify-machineinstrs should ensure that DEBUG_VALUEs go before the
      6 ; terminator.
      7 ;
      8 ; CHECK-LABEL: test:
      9 ; CHECK: ##DEBUG_VALUE: foo:i
     10 
     11 %a = type { i32, i32 }
     12 
     13 define hidden fastcc %a* @test() #1 !dbg !1 {
     14 entry:
     15   %0 = icmp eq %a* undef, null, !dbg !12
     16   br i1 %0, label %"14", label %return, !dbg !12
     17 
     18 "14":                                             ; preds = %"8"
     19   br i1 undef, label %"25", label %"21", !dbg !12
     20 
     21 "21":                                             ; preds = %"14"
     22   br i1 undef, label %may_unswitch_on.exit, label %"6.i", !dbg !12
     23 
     24 "6.i":                                            ; preds = %"21"
     25   br i1 undef, label %"10.i", label %may_unswitch_on.exit, !dbg !12
     26 
     27 "10.i":                                           ; preds = %"6.i"
     28   br i1 undef, label %may_unswitch_on.exit, label %"12.i", !dbg !12
     29 
     30 "12.i":                                           ; preds = %"10.i"
     31   br i1 undef, label %"4.i.i", label %"3.i.i", !dbg !12
     32 
     33 "3.i.i":                                          ; preds = %"12.i"
     34   br i1 undef, label %"4.i.i", label %VEC_edge_base_index.exit.i, !dbg !12
     35 
     36 "4.i.i":                                          ; preds = %"3.i.i", %"12.i"
     37   unreachable, !dbg !12
     38 
     39 VEC_edge_base_index.exit.i:                       ; preds = %"3.i.i"
     40   br i1 undef, label %may_unswitch_on.exit, label %"16.i", !dbg !12
     41 
     42 "16.i":                                           ; preds = %VEC_edge_base_index.exit.i
     43   br i1 undef, label %"4.i6.i", label %"3.i5.i", !dbg !12
     44 
     45 "3.i5.i":                                         ; preds = %"16.i"
     46   br i1 undef, label %VEC_edge_base_index.exit7.i, label %"4.i6.i", !dbg !12
     47 
     48 "4.i6.i":                                         ; preds = %"3.i5.i", %"16.i"
     49   unreachable, !dbg !12
     50 
     51 VEC_edge_base_index.exit7.i:                      ; preds = %"3.i5.i"
     52   br i1 undef, label %may_unswitch_on.exit, label %"21.i", !dbg !12
     53 
     54 "21.i":                                           ; preds = %VEC_edge_base_index.exit7.i
     55   br i1 undef, label %may_unswitch_on.exit, label %"23.i", !dbg !12
     56 
     57 "23.i":                                           ; preds = %"21.i"
     58   br i1 undef, label %may_unswitch_on.exit, label %"26.i", !dbg !12
     59 
     60 "26.i":                                           ; preds = %"34.i", %"23.i"
     61   %1 = icmp eq i32 undef, 9, !dbg !12
     62   br i1 %1, label %"34.i", label %"28.i", !dbg !12
     63 
     64 "28.i":                                           ; preds = %"26.i"
     65   unreachable
     66 
     67 "34.i":                                           ; preds = %"26.i"
     68   br i1 undef, label %"26.i", label %"36.i", !dbg !12
     69 
     70 "36.i":                                           ; preds = %"34.i"
     71   br i1 undef, label %"37.i", label %"38.i", !dbg !12
     72 
     73 "37.i":                                           ; preds = %"36.i"
     74   br label %"38.i", !dbg !12
     75 
     76 "38.i":                                           ; preds = %"37.i", %"36.i"
     77   br i1 undef, label %"39.i", label %"45.i", !dbg !12
     78 
     79 "39.i":                                           ; preds = %"38.i"
     80   br i1 undef, label %"41.i", label %may_unswitch_on.exit, !dbg !12
     81 
     82 "41.i":                                           ; preds = %"39.i"
     83   br i1 undef, label %may_unswitch_on.exit, label %"42.i", !dbg !12
     84 
     85 "42.i":                                           ; preds = %"41.i"
     86   br i1 undef, label %may_unswitch_on.exit, label %"44.i", !dbg !12
     87 
     88 "44.i":                                           ; preds = %"42.i"
     89   %2 = load %a*, %a** undef, align 8, !dbg !12
     90   %3 = bitcast %a* %2 to %a*, !dbg !12
     91   call void @llvm.dbg.value(metadata %a* %3, i64 0, metadata !6, metadata !DIExpression(DW_OP_deref)), !dbg !12
     92   br label %may_unswitch_on.exit, !dbg !12
     93 
     94 "45.i":                                           ; preds = %"38.i"
     95   unreachable
     96 
     97 may_unswitch_on.exit:                             ; preds = %"44.i", %"42.i", %"41.i", %"39.i", %"23.i", %"21.i", %VEC_edge_base_index.exit7.i, %VEC_edge_base_index.exit.i, %"10.i", %"6.i", %"21"
     98   %4 = phi %a* [ %3, %"44.i" ], [ null, %"6.i" ], [ null, %"10.i" ], [ null, %VEC_edge_base_index.exit7.i ], [ null, %VEC_edge_base_index.exit.i ], [ null, %"21.i" ], [ null, %"23.i" ], [ null, %"39.i" ], [ null, %"42.i" ], [ null, %"41.i" ], [ null, %"21" ]
     99   br label %return
    100 
    101 "25":                                             ; preds = %"14"
    102   unreachable
    103 
    104 "return":
    105   %result = phi %a* [ null, %entry ], [ %4, %may_unswitch_on.exit ]
    106   ret %a* %result, !dbg !12
    107 }
    108 
    109 attributes #0 = { nounwind readnone }
    110 attributes #1 = { nounwind uwtable }
    111 
    112 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
    113 
    114 !llvm.dbg.cu = !{!0}
    115 !llvm.module.flags = !{!22}
    116 
    117 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "Apple clang version", isOptimized: true, emissionKind: FullDebug, file: !20, enums: !21, retainedTypes: !21, imports:  null)
    118 !1 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, file: !20, scope: !2, type: !3, variables: !19)
    119 !2 = !DIFile(filename: "a.c", directory: "/private/tmp")
    120 !3 = !DISubroutineType(types: !4)
    121 !4 = !{!5}
    122 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
    123 !6 = !DILocalVariable(name: "i", line: 2, arg: 1, scope: !1, file: !2, type: !5)
    124 !7 = !DILocalVariable(name: "c", line: 2, arg: 2, scope: !1, file: !2, type: !8)
    125 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !0, baseType: !9)
    126 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
    127 !10 = !DILocalVariable(name: "a", line: 3, scope: !11, file: !2, type: !9)
    128 !11 = distinct !DILexicalBlock(line: 2, column: 25, file: !20, scope: !1)
    129 !12 = !DILocation(line: 2, column: 13, scope: !1)
    130 !19 = !{!6, !7, !10}
    131 !20 = !DIFile(filename: "a.c", directory: "/private/tmp")
    132 !21 = !{}
    133 !22 = !{i32 1, !"Debug Info Version", i32 3}
    134