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      1 ; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
      2 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
      3 target triple = "i686-pc-windows-msvc18.0.0"
      4 
      5 ; C++ source to regenerate:
      6 ; $ cat t.cpp
      7 ; void f() {
      8 ;   typedef int FOO;
      9 ;   FOO f;
     10 ; }
     11 ;
     12 ; struct S { int x; };
     13 ; float g(S *s) {
     14 ;   union pun { int x; float f; } p;
     15 ;   p.x = s->x;
     16 ;   return p.f;
     17 ; }
     18 ; typedef struct { int x; } U;
     19 ; U u;
     20 
     21 ; CHECK:      ProcStart {
     22 ; CHECK:        DisplayName: f
     23 ; CHECK:        LinkageName: ?f@@YAXXZ
     24 ; CHECK:      }
     25 ; CHECK:      UDT {
     26 ; CHECK-NEXT:   Type: int (0x74)
     27 ; CHECK-NEXT:   UDTName: f::FOO
     28 ; CHECK-NEXT: }
     29 ; CHECK-NEXT: ProcEnd {
     30 ; CHECK-NEXT: }
     31 
     32 ; CHECK:      ProcStart {
     33 ; CHECK:        DisplayName: g
     34 ; CHECK:        LinkageName: ?g@@YAMPEAUS@@@Z
     35 ; CHECK:      }
     36 ; CHECK:      UDT {
     37 ; CHECK-NEXT:   Type: g::pun (0x{{[0-9A-F]+}})
     38 ; CHECK-NEXT:   UDTName: g::pun
     39 ; CHECK-NEXT: }
     40 ; CHECK-NEXT: ProcEnd {
     41 ; CHECK-NEXT: }
     42 
     43 ; CHECK:      Subsection
     44 ; CHECK-NOT:  ProcStart
     45 ; CHECK:      UDT {
     46 ; CHECK-NEXT: Type: S (0x{{[0-9A-F]+}})
     47 ; CHECK-NEXT: UDTName: S
     48 ; CHECK:      UDT {
     49 ; CHECK-NEXT: Type: <unnamed-tag> (0x{{[0-9A-F]+}})
     50 ; CHECK-NEXT: UDTName: U
     51 ; CHECK-NOT: UDT {
     52 
     53 
     54 %struct.U = type { i32 }
     55 %struct.S = type { i32 }
     56 %union.pun = type { i32 }
     57 
     58 @"\01?u@@3UU@@A" = global %struct.U zeroinitializer, align 4
     59 
     60 ; Function Attrs: nounwind uwtable
     61 define void @"\01?f@@YAXXZ"() #0 !dbg !14 {
     62 entry:
     63   %f = alloca i32, align 4
     64   call void @llvm.dbg.declare(metadata i32* %f, metadata !17, metadata !19), !dbg !20
     65   ret void, !dbg !21
     66 }
     67 
     68 ; Function Attrs: nounwind readnone
     69 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
     70 
     71 ; Function Attrs: nounwind uwtable
     72 define float @"\01?g@@YAMPEAUS@@@Z"(%struct.S* %s) #0 !dbg !22 {
     73 entry:
     74   %s.addr = alloca %struct.S*, align 8
     75   %p = alloca %union.pun, align 4
     76   store %struct.S* %s, %struct.S** %s.addr, align 8
     77   call void @llvm.dbg.declare(metadata %struct.S** %s.addr, metadata !30, metadata !19), !dbg !31
     78   call void @llvm.dbg.declare(metadata %union.pun* %p, metadata !32, metadata !19), !dbg !37
     79   %0 = load %struct.S*, %struct.S** %s.addr, align 8, !dbg !38
     80   %x = getelementptr inbounds %struct.S, %struct.S* %0, i32 0, i32 0, !dbg !39
     81   %1 = load i32, i32* %x, align 4, !dbg !39
     82   %x1 = bitcast %union.pun* %p to i32*, !dbg !40
     83   store i32 %1, i32* %x1, align 4, !dbg !41
     84   %f = bitcast %union.pun* %p to float*, !dbg !42
     85   %2 = load float, float* %f, align 4, !dbg !42
     86   ret float %2, !dbg !43
     87 }
     88 
     89 attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
     90 attributes #1 = { nounwind readnone }
     91 
     92 !llvm.dbg.cu = !{!0}
     93 !llvm.module.flags = !{!10, !11, !12}
     94 !llvm.ident = !{!13}
     95 
     96 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3)
     97 !1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
     98 !2 = !{}
     99 !3 = !{!4}
    100 !4 = distinct !DIGlobalVariable(name: "u", linkageName: "\01?u@@3UU@@A", scope: !0, file: !1, line: 13, type: !5, isLocal: false, isDefinition: true, variable: %struct.U* @"\01?u@@3UU@@A")
    101 !5 = !DIDerivedType(tag: DW_TAG_typedef, name: "U", file: !1, line: 12, baseType: !6)
    102 !6 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 12, size: 32, align: 32, elements: !7, identifier: ".?AUU@@")
    103 !7 = !{!8}
    104 !8 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !6, file: !1, line: 12, baseType: !9, size: 32, align: 32)
    105 !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
    106 !10 = !{i32 2, !"CodeView", i32 1}
    107 !11 = !{i32 2, !"Debug Info Version", i32 3}
    108 !12 = !{i32 1, !"PIC Level", i32 2}
    109 !13 = !{!"clang version 3.9.0 "}
    110 !14 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YAXXZ", scope: !1, file: !1, line: 1, type: !15, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
    111 !15 = !DISubroutineType(types: !16)
    112 !16 = !{null}
    113 !17 = !DILocalVariable(name: "f", scope: !14, file: !1, line: 3, type: !18)
    114 !18 = !DIDerivedType(tag: DW_TAG_typedef, name: "FOO", scope: !14, file: !1, line: 2, baseType: !9)
    115 !19 = !DIExpression()
    116 !20 = !DILocation(line: 3, column: 7, scope: !14)
    117 !21 = !DILocation(line: 4, column: 1, scope: !14)
    118 !22 = distinct !DISubprogram(name: "g", linkageName: "\01?g@@YAMPEAUS@@@Z", scope: !1, file: !1, line: 7, type: !23, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
    119 !23 = !DISubroutineType(types: !24)
    120 !24 = !{!25, !26}
    121 !25 = !DIBasicType(name: "float", size: 32, align: 32, encoding: DW_ATE_float)
    122 !26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 64, align: 64)
    123 !27 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !1, line: 6, size: 32, align: 32, elements: !28, identifier: ".?AUS@@")
    124 !28 = !{!29}
    125 !29 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !27, file: !1, line: 6, baseType: !9, size: 32, align: 32)
    126 !30 = !DILocalVariable(name: "s", arg: 1, scope: !22, file: !1, line: 7, type: !26)
    127 !31 = !DILocation(line: 7, column: 12, scope: !22)
    128 !32 = !DILocalVariable(name: "p", scope: !22, file: !1, line: 8, type: !33)
    129 !33 = distinct !DICompositeType(tag: DW_TAG_union_type, name: "pun", scope: !22, file: !1, line: 8, size: 32, align: 32, elements: !34)
    130 !34 = !{!35, !36}
    131 !35 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !33, file: !1, line: 8, baseType: !9, size: 32, align: 32)
    132 !36 = !DIDerivedType(tag: DW_TAG_member, name: "f", scope: !33, file: !1, line: 8, baseType: !25, size: 32, align: 32)
    133 !37 = !DILocation(line: 8, column: 33, scope: !22)
    134 !38 = !DILocation(line: 9, column: 9, scope: !22)
    135 !39 = !DILocation(line: 9, column: 12, scope: !22)
    136 !40 = !DILocation(line: 9, column: 5, scope: !22)
    137 !41 = !DILocation(line: 9, column: 7, scope: !22)
    138 !42 = !DILocation(line: 10, column: 12, scope: !22)
    139 !43 = !DILocation(line: 10, column: 3, scope: !22)
    140