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      1 ; RUN: llc -mtriple=x86_64-apple-darwin -O0 -filetype=obj -o %t < %s
      2 ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
      3 ; <rdar://problem/12566646>
      4 
      5 %struct.foo = type { i32, [1 x i32] }
      6 %struct.bar = type { i32, [0 x i32] }
      7 
      8 define i32 @func() nounwind uwtable ssp !dbg !5 {
      9 entry:
     10   %my_foo = alloca %struct.foo, align 4
     11   %my_bar = alloca %struct.bar, align 4
     12   call void @llvm.dbg.declare(metadata %struct.foo* %my_foo, metadata !10, metadata !DIExpression()), !dbg !19
     13   call void @llvm.dbg.declare(metadata %struct.bar* %my_bar, metadata !20, metadata !DIExpression()), !dbg !28
     14   %a = getelementptr inbounds %struct.foo, %struct.foo* %my_foo, i32 0, i32 0, !dbg !29
     15   store i32 3, i32* %a, align 4, !dbg !29
     16   %a1 = getelementptr inbounds %struct.bar, %struct.bar* %my_bar, i32 0, i32 0, !dbg !30
     17   store i32 5, i32* %a1, align 4, !dbg !30
     18   %a2 = getelementptr inbounds %struct.foo, %struct.foo* %my_foo, i32 0, i32 0, !dbg !31
     19   %0 = load i32, i32* %a2, align 4, !dbg !31
     20   %a3 = getelementptr inbounds %struct.bar, %struct.bar* %my_bar, i32 0, i32 0, !dbg !31
     21   %1 = load i32, i32* %a3, align 4, !dbg !31
     22   %add = add nsw i32 %0, %1, !dbg !31
     23   ret i32 %add, !dbg !31
     24 }
     25 
     26 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
     27 
     28 ; CHECK:      DW_TAG_base_type
     29 ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]  ( .debug_str[{{.*}}] = "int")
     30 ; CHECK-NEXT: DW_AT_encoding [DW_FORM_data1]   (DW_ATE_signed)
     31 ; CHECK-NEXT: DW_AT_byte_size [DW_FORM_data1]  (0x04)
     32 
     33 ; int foo::b[1]:
     34 ; CHECK: DW_TAG_structure_type
     35 ; CHECK: DW_AT_name{{.*}}"foo"
     36 ; CHECK:      DW_TAG_member
     37 ; CHECK:      DW_TAG_member
     38 ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]  ( .debug_str[{{.*}}] = "b")
     39 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     40 
     41 ; int[1]:
     42 ; CHECK:      DW_TAG_array_type [{{.*}}] *
     43 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     44 ; CHECK:      DW_TAG_subrange_type [{{.*}}]
     45 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     46 ; CHECK-NEXT: DW_AT_count [DW_FORM_data1]  (0x01)
     47 
     48 ; int bar::b[0]:
     49 ; CHECK: DW_TAG_structure_type
     50 ; CHECK: DW_AT_name{{.*}}"bar"
     51 ; CHECK:      DW_TAG_member
     52 ; CHECK:      DW_TAG_member
     53 ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]  ( .debug_str[{{.*}}] = "b")
     54 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     55 
     56 ; int[0]:
     57 ; CHECK:      DW_TAG_array_type [{{.*}}] *
     58 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     59 ; CHECK:      DW_TAG_subrange_type
     60 ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
     61 ; CHECK:      DW_AT_count [DW_FORM_data1]  (0x00)
     62 
     63 !llvm.dbg.cu = !{!0}
     64 !llvm.module.flags = !{!33}
     65 
     66 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 169136)", isOptimized: false, emissionKind: 0, file: !32, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1, imports:  !1)
     67 !1 = !{}
     68 !3 = !{!5}
     69 !5 = distinct !DISubprogram(name: "func", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !6, scope: !6, type: !7, variables: !1)
     70 !6 = !DIFile(filename: "test.c", directory: "/Volumes/Sandbox/llvm")
     71 !7 = !DISubroutineType(types: !8)
     72 !8 = !{!9}
     73 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     74 !10 = !DILocalVariable(name: "my_foo", line: 12, scope: !11, file: !6, type: !12)
     75 !11 = distinct !DILexicalBlock(line: 11, column: 0, file: !6, scope: !5)
     76 !12 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 64, align: 32, file: !32, elements: !13)
     77 !13 = !{!14, !15}
     78 !14 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !32, scope: !12, baseType: !9)
     79 !15 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !32, scope: !12, baseType: !16)
     80 !16 = !DICompositeType(tag: DW_TAG_array_type, size: 32, align: 32, baseType: !9, elements: !17)
     81 !17 = !{!18}
     82 !18 = !DISubrange(count: 1)
     83 !19 = !DILocation(line: 12, scope: !11)
     84 !20 = !DILocalVariable(name: "my_bar", line: 13, scope: !11, file: !6, type: !21)
     85 !21 = !DICompositeType(tag: DW_TAG_structure_type, name: "bar", line: 6, size: 32, align: 32, file: !32, elements: !22)
     86 !22 = !{!23, !24}
     87 !23 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 7, size: 32, align: 32, file: !32, scope: !21, baseType: !9)
     88 !24 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 8, align: 32, offset: 32, file: !32, scope: !21, baseType: !25)
     89 !25 = !DICompositeType(tag: DW_TAG_array_type, align: 32, baseType: !9, elements: !26)
     90 !26 = !{!27}
     91 !27 = !DISubrange(count: 0)
     92 !28 = !DILocation(line: 13, scope: !11)
     93 !29 = !DILocation(line: 15, scope: !11)
     94 !30 = !DILocation(line: 16, scope: !11)
     95 !31 = !DILocation(line: 17, scope: !11)
     96 !32 = !DIFile(filename: "test.c", directory: "/Volumes/Sandbox/llvm")
     97 !33 = !{i32 1, !"Debug Info Version", i32 3}
     98