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      1 ; RUN: llvm-as < %s -o %t.bc 2>&1 >/dev/null | FileCheck -check-prefix=WARN %s
      2 ; RUN: llvm-dis < %t.bc | FileCheck %s
      3 ; RUN: verify-uselistorder < %t.bc
      4 
      5 define i32 @main() !dbg !4 {
      6 entry:
      7   %retval = alloca i32, align 4
      8   store i32 0, i32* %retval
      9   ret i32 0, !dbg !12
     10 }
     11 
     12 !llvm.dbg.cu = !{!0}
     13 !llvm.module.flags = !{!9}
     14 
     15 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 (trunk 195495) (llvm/trunk 195495:195504M)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
     16 !1 = !DIFile(filename: "../llvm/tools/clang/test/CodeGen/debug-info-version.c", directory: "/Users/manmanren/llvm_gmail/release")
     17 !2 = !{i32 0}
     18 !4 = distinct !DISubprogram(name: "main", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2)
     19 !5 = !DIFile(filename: "../llvm/tools/clang/test/CodeGen/debug-info-version.c", directory: "/Users/manmanren/llvm_gmail/release")
     20 !6 = !DISubroutineType(types: !7)
     21 !7 = !{!8}
     22 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     23 !9 = !{i32 2, !"Dwarf Version", i32 2}
     24 !12 = !DILocation(line: 4, scope: !4)
     25 
     26 ; WARN: warning: ignoring debug info with an invalid version (0)
     27 ; CHECK-NOT: !dbg
     28 ; CHECK-NOT: !llvm.dbg.cu
     29