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      1 ; REQUIRES: object-emission
      2 
      3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
      4 ; RUN: llvm-dwarfdump -v %t | FileCheck %s
      5 
      6 ; IR generated from the following code compiled with clang -g:
      7 ; enum e1 { I, J = 0xffffffffU, K = 0xf000000000000000ULL } a;
      8 ; enum e2 { X };
      9 ; void func() {
     10 ;   int b = X;
     11 ; }
     12 
     13 ; These values were previously being truncated to -1 and 0 respectively.
     14 
     15 ; CHECK: debug_info contents
     16 ; CHECK: DW_TAG_enumeration_type
     17 ; CHECK-NEXT: DW_AT_name{{.*}} = "e1"
     18 ; CHECK-NOT: NULL
     19 ; CHECK: DW_TAG_enumerator
     20 ; CHECK-NOT: NULL
     21 ; CHECK: DW_TAG_enumerator
     22 ; CHECK-NEXT: DW_AT_name{{.*}} = "J"
     23 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (4294967295)
     24 ; CHECK-NOT: NULL
     25 ; CHECK: DW_TAG_enumerator
     26 ; CHECK-NEXT: DW_AT_name{{.*}} = "K"
     27 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (-1152921504606846976)
     28 
     29 ; Check that we retain enums that aren't referenced by any variables, etc
     30 ; CHECK: DW_TAG_enumeration_type
     31 ; CHECK-NEXT: DW_AT_name{{.*}} = "e2"
     32 ; CHECK-NOT: NULL
     33 ; CHECK: DW_TAG_enumerator
     34 ; CHECK-NEXT: DW_AT_name{{.*}} = "X"
     35 
     36 source_filename = "test/DebugInfo/Generic/enum.ll"
     37 
     38 @a = global i64 0, align 8, !dbg !0
     39 
     40 ; Function Attrs: nounwind uwtable
     41 define void @_Z4funcv() #0 !dbg !17 {
     42 entry:
     43   %b = alloca i32, align 4
     44   call void @llvm.dbg.declare(metadata i32* %b, metadata !20, metadata !22), !dbg !23
     45   store i32 0, i32* %b, align 4, !dbg !23
     46   ret void, !dbg !24
     47 }
     48 
     49 ; Function Attrs: nounwind readnone
     50 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
     51 
     52 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
     53 attributes #1 = { nounwind readnone }
     54 
     55 !llvm.dbg.cu = !{!8}
     56 !llvm.module.flags = !{!15, !16}
     57 
     58 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
     59 !1 = !DIGlobalVariable(name: "a", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
     60 !2 = !DIFile(filename: "enum.cpp", directory: "/tmp")
     61 !3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e1", file: !2, line: 1, size: 64, align: 64, elements: !4)
     62 !4 = !{!5, !6, !7}
     63 !5 = !DIEnumerator(name: "I", value: 0)
     64 !6 = !DIEnumerator(name: "J", value: 4294967295) ; [ DW_TAG_enumerator ] [I :: 0]
     65 !7 = !DIEnumerator(name: "K", value: -1152921504606846976) ; [ DW_TAG_enumerator ] [J :: 4294967295]
     66 !8 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !9, retainedTypes: !13, globals: !14, imports: !13) ; [ DW_TAG_enumerator ] [K :: 17293822569102704640]
     67 !9 = !{!3, !10}
     68 !10 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e2", file: !2, line: 2, size: 32, align: 32, elements: !11)
     69 !11 = !{!12}
     70 !12 = !DIEnumerator(name: "X", value: 0) ; [ DW_TAG_enumerator ] [X :: 0]
     71 !13 = !{}
     72 !14 = !{!0}
     73 !15 = !{i32 2, !"Dwarf Version", i32 3}
     74 !16 = !{i32 1, !"Debug Info Version", i32 3}
     75 !17 = distinct !DISubprogram(name: "func", linkageName: "_Z4funcv", scope: !2, file: !2, line: 3, type: !18, isLocal: false, isDefinition: true, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !8, retainedNodes: !13)
     76 !18 = !DISubroutineType(types: !19)
     77 !19 = !{null}
     78 !20 = !DILocalVariable(name: "b", scope: !17, file: !2, line: 4, type: !21)
     79 !21 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     80 !22 = !DIExpression()
     81 !23 = !DILocation(line: 4, scope: !17)
     82 !24 = !DILocation(line: 5, scope: !17)
     83 
     84