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      1 ; RUN: sed -e 's|PATTERN|%/T|g' %s | opt -insert-gcov-profiling -disable-output
      2 ; RUN: rm %T/linezero.gcno
      3 
      4 ; RUN: sed -e 's|PATTERN|%/T|g' %s | opt -passes=insert-gcov-profiling -disable-output
      5 ; RUN: rm %T/linezero.gcno
      6 
      7 ; This is a crash test.
      8 
      9 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
     10 target triple = "x86_64-unknown-linux-gnu"
     11 
     12 %struct.vector = type { i8 }
     13 
     14 ; Function Attrs: nounwind
     15 define i32 @_Z4testv() #0 !dbg !15 {
     16 entry:
     17   %retval = alloca i32, align 4
     18   %__range = alloca %struct.vector*, align 8
     19   %ref.tmp = alloca %struct.vector, align 1
     20   %undef.agg.tmp = alloca %struct.vector, align 1
     21   %__begin = alloca i8*, align 8
     22   %__end = alloca i8*, align 8
     23   %spec = alloca i8, align 1
     24   call void @llvm.dbg.declare(metadata %struct.vector** %__range, metadata !27, metadata !DIExpression()), !dbg !30
     25   br label %0
     26 
     27 ; <label>:0                                       ; preds = %entry
     28   call void @_Z13TagFieldSpecsv(), !dbg !31
     29   store %struct.vector* %ref.tmp, %struct.vector** %__range, align 8, !dbg !31
     30   call void @llvm.dbg.declare(metadata i8** %__begin, metadata !32, metadata !DIExpression()), !dbg !30
     31   %1 = load %struct.vector*, %struct.vector** %__range, align 8, !dbg !31
     32   %call = call i8* @_ZN6vector5beginEv(%struct.vector* %1), !dbg !31
     33   store i8* %call, i8** %__begin, align 8, !dbg !31
     34   call void @llvm.dbg.declare(metadata i8** %__end, metadata !33, metadata !DIExpression()), !dbg !30
     35   %2 = load %struct.vector*, %struct.vector** %__range, align 8, !dbg !31
     36   %call1 = call i8* @_ZN6vector3endEv(%struct.vector* %2), !dbg !31
     37   store i8* %call1, i8** %__end, align 8, !dbg !31
     38   br label %for.cond, !dbg !31
     39 
     40 for.cond:                                         ; preds = %for.inc, %0
     41   %3 = load i8*, i8** %__begin, align 8, !dbg !34
     42   %4 = load i8*, i8** %__end, align 8, !dbg !34
     43   %cmp = icmp ne i8* %3, %4, !dbg !34
     44   br i1 %cmp, label %for.body, label %for.end, !dbg !34
     45 
     46 for.body:                                         ; preds = %for.cond
     47   call void @llvm.dbg.declare(metadata i8* %spec, metadata !37, metadata !DIExpression()), !dbg !31
     48   %5 = load i8*, i8** %__begin, align 8, !dbg !38
     49   %6 = load i8, i8* %5, align 1, !dbg !38
     50   store i8 %6, i8* %spec, align 1, !dbg !38
     51   br label %for.inc, !dbg !38
     52 
     53 for.inc:                                          ; preds = %for.body
     54   %7 = load i8*, i8** %__begin, align 8, !dbg !40
     55   %incdec.ptr = getelementptr inbounds i8, i8* %7, i32 1, !dbg !40
     56   store i8* %incdec.ptr, i8** %__begin, align 8, !dbg !40
     57   br label %for.cond, !dbg !40
     58 
     59 for.end:                                          ; preds = %for.cond
     60   call void @llvm.trap(), !dbg !42
     61   unreachable, !dbg !42
     62 
     63 return:                                           ; No predecessors!
     64   %8 = load i32, i32* %retval, !dbg !44
     65   ret i32 %8, !dbg !44
     66 }
     67 
     68 ; Function Attrs: nounwind readnone
     69 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
     70 
     71 declare void @_Z13TagFieldSpecsv() #2
     72 
     73 declare i8* @_ZN6vector5beginEv(%struct.vector*) #2
     74 
     75 declare i8* @_ZN6vector3endEv(%struct.vector*) #2
     76 
     77 ; Function Attrs: noreturn nounwind
     78 declare void @llvm.trap() #3
     79 
     80 ; Function Attrs: nounwind
     81 define void @_Z2f1v() #0 !dbg !20 {
     82 entry:
     83   br label %0
     84 
     85 ; <label>:0                                       ; preds = %entry
     86   ret void, !dbg !45
     87 }
     88 
     89 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
     90 attributes #1 = { nounwind readnone }
     91 attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
     92 attributes #3 = { noreturn nounwind }
     93 
     94 !llvm.dbg.cu = !{!0}
     95 !llvm.module.flags = !{!23, !24}
     96 !llvm.gcov = !{!25}
     97 !llvm.ident = !{!26}
     98 
     99 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (trunk 209871)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
    100 !1 = !DIFile(filename: "<stdin>", directory: "PATTERN")
    101 !2 = !{}
    102 !3 = !{!4}
    103 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "vector", line: 21, size: 8, align: 8, file: !5, elements: !6, identifier: "_ZTS6vector")
    104 !5 = !DIFile(filename: "linezero.cc", directory: "PATTERN")
    105 !6 = !{!7, !13}
    106 !7 = !DISubprogram(name: "begin", linkageName: "_ZN6vector5beginEv", line: 25, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 25, file: !5, scope: !4, type: !8)
    107 !8 = !DISubroutineType(types: !9)
    108 !9 = !{!10, !12}
    109 !10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)
    110 !11 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
    111 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4)
    112 !13 = !DISubprogram(name: "end", linkageName: "_ZN6vector3endEv", line: 26, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 26, file: !5, scope: !4, type: !8)
    113 !15 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 50, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 50, file: !5, scope: !16, type: !17, variables: !2)
    114 !16 = !DIFile(filename: "linezero.cc", directory: "PATTERN")
    115 !17 = !DISubroutineType(types: !18)
    116 !18 = !{!19}
    117 !19 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
    118 !20 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", line: 54, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 54, file: !5, scope: !16, type: !21, variables: !2)
    119 !21 = !DISubroutineType(types: !22)
    120 !22 = !{null}
    121 !23 = !{i32 2, !"Dwarf Version", i32 4}
    122 !24 = !{i32 2, !"Debug Info Version", i32 3}
    123 !25 = !{!"PATTERN/linezero.o", !0}
    124 !26 = !{!"clang version 3.5.0 (trunk 209871)"}
    125 !27 = !DILocalVariable(name: "__range", flags: DIFlagArtificial, scope: !28, type: !29)
    126 !28 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !15)
    127 !29 = !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: !4)
    128 !30 = !DILocation(line: 0, scope: !28)
    129 !31 = !DILocation(line: 51, scope: !28)
    130 !32 = !DILocalVariable(name: "__begin", flags: DIFlagArtificial, scope: !28, type: !10)
    131 !33 = !DILocalVariable(name: "__end", flags: DIFlagArtificial, scope: !28, type: !10)
    132 !34 = !DILocation(line: 51, scope: !35)
    133 !35 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !36)
    134 !36 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !28)
    135 !37 = !DILocalVariable(name: "spec", line: 51, scope: !28, file: !16, type: !11)
    136 !38 = !DILocation(line: 51, scope: !39)
    137 !39 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !28)
    138 !40 = !DILocation(line: 51, scope: !41)
    139 !41 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !28)
    140 !42 = !DILocation(line: 51, scope: !43)
    141 !43 = distinct !DILexicalBlock(line: 51, column: 0, file: !5, scope: !28)
    142 !44 = !DILocation(line: 52, scope: !15)
    143 !45 = !DILocation(line: 54, scope: !20)
    144