diff --git a/llvm/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll b/llvm/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
@@ -78,16 +78,16 @@ entry:
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!49}
 
-!0 = !DISubprogram(name: "get1", linkageName: "get1", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 4, file: !47, scope: !1, type: !3, function: i8 (i8)* @get1, variables: !42)
+!0 = distinct !DISubprogram(name: "get1", linkageName: "get1", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 4, file: !47, scope: !1, type: !3, function: i8 (i8)* @get1, variables: !42)
 !1 = !DIFile(filename: "foo.c", directory: "/tmp/")
 !2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", isOptimized: true, emissionKind: 0, file: !47, enums: !48, retainedTypes: !48, subprograms: !40, globals: !41, imports:  !48)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5, !5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "_Bool", size: 8, align: 8, encoding: DW_ATE_boolean)
-!6 = !DISubprogram(name: "get2", linkageName: "get2", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 7, file: !47, scope: !1, type: !3, function: i8 (i8)* @get2, variables: !43)
-!7 = !DISubprogram(name: "get3", linkageName: "get3", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 10, file: !47, scope: !1, type: !3, function: i8 (i8)* @get3, variables: !44)
-!8 = !DISubprogram(name: "get4", linkageName: "get4", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !47, scope: !1, type: !3, function: i8 (i8)* @get4, variables: !45)
-!9 = !DISubprogram(name: "get5", linkageName: "get5", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 16, file: !47, scope: !1, type: !3, function: i8 (i8)* @get5, variables: !46)
+!6 = distinct !DISubprogram(name: "get2", linkageName: "get2", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 7, file: !47, scope: !1, type: !3, function: i8 (i8)* @get2, variables: !43)
+!7 = distinct !DISubprogram(name: "get3", linkageName: "get3", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 10, file: !47, scope: !1, type: !3, function: i8 (i8)* @get3, variables: !44)
+!8 = distinct !DISubprogram(name: "get4", linkageName: "get4", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !47, scope: !1, type: !3, function: i8 (i8)* @get4, variables: !45)
+!9 = distinct !DISubprogram(name: "get5", linkageName: "get5", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 16, file: !47, scope: !1, type: !3, function: i8 (i8)* @get5, variables: !46)
 !10 = !DILocalVariable(name: "a", line: 4, arg: 1, scope: !0, file: !1, type: !5)
 !11 = !DILocalVariable(name: "b", line: 4, scope: !12, file: !1, type: !5)
 !12 = distinct !DILexicalBlock(line: 4, column: 0, file: !47, scope: !0)

diff --git a/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll b/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
@@ -74,15 +74,15 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!49}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", isOptimized: true, emissionKind: 1, file: !47, enums: !48, retainedTypes: !48, subprograms: !40, globals: !41, imports:  !48)
-!1 = !DISubprogram(name: "get1", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !47, scope: !2, type: !3, function: i32 (i32)* @get1, variables: !42)
+!1 = distinct !DISubprogram(name: "get1", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !47, scope: !2, type: !3, function: i32 (i32)* @get1, variables: !42)
 !2 = !DIFile(filename: "ss3.c", directory: "/private/tmp")
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "get2", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !47, scope: !2, type: !3, function: i32 (i32)* @get2, variables: !43)
-!7 = !DISubprogram(name: "get3", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !47, scope: !2, type: !3, function: i32 (i32)* @get3, variables: !44)
-!8 = !DISubprogram(name: "get4", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 14, file: !47, scope: !2, type: !3, function: i32 (i32)* @get4, variables: !45)
-!9 = !DISubprogram(name: "get5", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 17, file: !47, scope: !2, type: !3, function: i32 (i32)* @get5, variables: !46)
+!6 = distinct !DISubprogram(name: "get2", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !47, scope: !2, type: !3, function: i32 (i32)* @get2, variables: !43)
+!7 = distinct !DISubprogram(name: "get3", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !47, scope: !2, type: !3, function: i32 (i32)* @get3, variables: !44)
+!8 = distinct !DISubprogram(name: "get4", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 14, file: !47, scope: !2, type: !3, function: i32 (i32)* @get4, variables: !45)
+!9 = distinct !DISubprogram(name: "get5", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 17, file: !47, scope: !2, type: !3, function: i32 (i32)* @get5, variables: !46)
 !10 = !DILocalVariable(name: "a", line: 5, arg: 1, scope: !1, file: !2, type: !5)
 !11 = !DILocalVariable(name: "b", line: 5, scope: !12, file: !2, type: !5)
 !12 = distinct !DILexicalBlock(line: 5, column: 19, file: !47, scope: !1)

diff --git a/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll b/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll
@@ -83,7 +83,7 @@ attributes #3 = { nounwind }
 !1 = !DIFile(filename: "pr16110.c", directory: "/d/b")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "pr16110", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 7, file: !1, scope: !5, type: !6, function: i32 ()* @pr16110, variables: !9)
+!4 = distinct !DISubprogram(name: "pr16110", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 7, file: !1, scope: !5, type: !6, function: i32 ()* @pr16110, variables: !9)
 !5 = !DIFile(filename: "pr16110.c", directory: "/d/b")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8}

diff --git a/llvm/test/CodeGen/ARM/debug-frame-vararg.ll b/llvm/test/CodeGen/ARM/debug-frame-vararg.ll
@@ -29,7 +29,7 @@
 !1 = !DIFile(filename: "var.c", directory: "/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "sum", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: i32 (i32, ...)* @sum, variables: !2)
+!4 = distinct !DISubprogram(name: "sum", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: i32 (i32, ...)* @sum, variables: !2)
 !5 = !DIFile(filename: "var.c", directory: "/tmp")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/ARM/debug-frame.ll b/llvm/test/CodeGen/ARM/debug-frame.ll
@@ -129,7 +129,7 @@ declare void @_ZSt9terminatev()
 !1 = !DIFile(filename: "exp.cpp", directory: "/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "test", linkageName: "_Z4testiiiiiddddd", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: void (i32, i32, i32, i32, i32, double, double, double, double, double)* @_Z4testiiiiiddddd, variables: !2)
+!4 = distinct !DISubprogram(name: "test", linkageName: "_Z4testiiiiiddddd", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: void (i32, i32, i32, i32, i32, double, double, double, double, double)* @_Z4testiiiiiddddd, variables: !2)
 !5 = !DIFile(filename: "exp.cpp", directory: "/tmp")
 !6 = !DISubroutineType(types: !7)
 !7 = !{null, !8, !8, !8, !8, !8, !9, !9, !9, !9, !9}

diff --git a/llvm/test/CodeGen/ARM/debug-info-arg.ll b/llvm/test/CodeGen/ARM/debug-info-arg.ll
@@ -33,7 +33,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!33}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "Apple clang version 3.0 (tags/Apple/clang-211.10.1) (based on LLVM 3.0svn)", isOptimized: true, emissionKind: 1, file: !32, enums: !{}, retainedTypes: !{}, subprograms: !30, imports:  null)
-!1 = !DISubprogram(name: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !2, scope: !2, type: !3, function: void (%struct.tag_s*, %struct.tag_s*, i64, i64, %struct.tag_s*, %struct.tag_s*)* @foo, variables: !31)
+!1 = distinct !DISubprogram(name: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !2, scope: !2, type: !3, function: void (%struct.tag_s*, %struct.tag_s*, i64, i64, %struct.tag_s*, %struct.tag_s*)* @foo, variables: !31)
 !2 = !DIFile(filename: "one.c", directory: "/Volumes/Athwagate/R10048772")
 !3 = !DISubroutineType(types: !4)
 !4 = !{null}

diff --git a/llvm/test/CodeGen/ARM/debug-info-blocks.ll b/llvm/test/CodeGen/ARM/debug-info-blocks.ll
@@ -118,7 +118,7 @@ define hidden void @foobar_func_block_invoke_0(i8* %.block_descriptor, %0* %load
 !20 = !DIFile(filename: "header4.h", directory: "/Volumes/Sandbox/llvm")
 !21 = !{!22}
 !22 = !DIEnumerator(name: "Eleven", value: 0) ; [ DW_TAG_enumerator ]
-!23 = !DISubprogram(name: "foobar_func_block_invoke_0", line: 609, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 609, file: !152, scope: !24, type: !25, function: void (i8*, %0*, [4 x i32], [4 x i32])* @foobar_func_block_invoke_0)
+!23 = distinct !DISubprogram(name: "foobar_func_block_invoke_0", line: 609, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 609, file: !152, scope: !24, type: !25, function: void (i8*, %0*, [4 x i32], [4 x i32])* @foobar_func_block_invoke_0)
 !24 = !DIFile(filename: "MyLibrary.m", directory: "/Volumes/Sandbox/llvm")
 !25 = !DISubroutineType(types: !26)
 !26 = !{null}

diff --git a/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll b/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
@@ -42,7 +42,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!56}
 !llvm.dbg.cu = !{!2}
 
-!0 = !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !3, function: <4 x float> (float)* @test0001, variables: !51)
+!0 = distinct !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !3, function: <4 x float> (float)* @test0001, variables: !51)
 !1 = !DIFile(filename: "build2.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: 1, file: !54, enums: !{}, retainedTypes: !{}, subprograms: !50, imports:  null)
 !3 = !DISubroutineType(types: !4)
@@ -52,11 +52,11 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
 !8 = !{!9}
 !9 = !DISubrange(count: 4)
-!10 = !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !11, function: i32 (i32, i8**, i1)* @main, variables: !52)
+!10 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !11, function: i32 (i32, i8**, i1)* @main, variables: !52)
 !11 = !DISubroutineType(types: !12)
 !12 = !{!13}
 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!14 = !DISubprogram(name: "printFV", line: 41, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !55, scope: null, type: !16, variables: !53)
+!14 = distinct !DISubprogram(name: "printFV", line: 41, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !55, scope: null, type: !16, variables: !53)
 !15 = !DIFile(filename: "/Volumes/Lalgate/work/llvm/projects/llvm-test/SingleSource/UnitTests/Vector/helpers.h", directory: "/private/tmp")
 !16 = !DISubroutineType(types: !17)
 !17 = !{null}

diff --git a/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll b/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll
@@ -59,7 +59,7 @@ declare i32 @puts(i8* nocapture) nounwind
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!48}
 
-!0 = !DISubprogram(name: "printer", linkageName: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !46, scope: !1, type: !3, function: i32 (i8*, double, i8)* @printer, variables: !43)
+!0 = distinct !DISubprogram(name: "printer", linkageName: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !46, scope: !1, type: !3, function: i32 (i8*, double, i8)* @printer, variables: !43)
 !1 = !DIFile(filename: "a.c", directory: "/tmp/")
 !2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "(LLVM build 00)", isOptimized: true, emissionKind: 1, file: !46, enums: !47, retainedTypes: !47, subprograms: !42, imports:  null)
 !3 = !DISubroutineType(types: !4)
@@ -68,8 +68,8 @@ declare i32 @puts(i8* nocapture) nounwind
 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, file: !46, scope: !1, baseType: null)
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 32, encoding: DW_ATE_float)
 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
-!9 = !DISubprogram(name: "inlineprinter", linkageName: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !46, scope: !1, type: !3, function: i32 (i8*, double, i8)* @inlineprinter, variables: !44)
-!10 = !DISubprogram(name: "main", linkageName: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !46, scope: !1, type: !11, function: i32 (i32, i8**)* @main, variables: !45)
+!9 = distinct !DISubprogram(name: "inlineprinter", linkageName: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !46, scope: !1, type: !3, function: i32 (i8*, double, i8)* @inlineprinter, variables: !44)
+!10 = distinct !DISubprogram(name: "main", linkageName: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !46, scope: !1, type: !11, function: i32 (i32, i8**)* @main, variables: !45)
 !11 = !DISubroutineType(types: !12)
 !12 = !{!5, !5, !13}
 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, file: !46, scope: !1, baseType: !14)

diff --git a/llvm/test/CodeGen/ARM/debug-info-no-frame.ll b/llvm/test/CodeGen/ARM/debug-info-no-frame.ll
@@ -24,7 +24,7 @@ attributes #1 = { nounwind readnone }
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false)
 !1 = !DIFile(filename: "file.c", directory: "/dir")
 !2 = !{}
-!3 = !DISubprogram(name: "need_cfi_def_cfa_offset", scope: !1, file: !1, line: 1, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, function: void ()* @need_cfi_def_cfa_offset, variables: !2)
+!3 = distinct !DISubprogram(name: "need_cfi_def_cfa_offset", scope: !1, file: !1, line: 1, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, function: void ()* @need_cfi_def_cfa_offset, variables: !2)
 !4 = !DISubroutineType(types: !5)
 !5 = !{null}
 !6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/CodeGen/ARM/debug-info-qreg.ll b/llvm/test/CodeGen/ARM/debug-info-qreg.ll
@@ -38,7 +38,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!56}
 
-!0 = !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !54, scope: !1, type: !3, function: <4 x float> (float)* @test0001, variables: !51)
+!0 = distinct !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !54, scope: !1, type: !3, function: <4 x float> (float)* @test0001, variables: !51)
 !1 = !DIFile(filename: "build2.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: 1, file: !54, enums: !{}, retainedTypes: !{}, subprograms: !50, imports:  null)
 !3 = !DISubroutineType(types: !4)
@@ -48,11 +48,11 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
 !8 = !{!9}
 !9 = !DISubrange(count: 4)
-!10 = !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 59, file: !54, scope: !1, type: !11, function: i32 (i32, i8**)* @main, variables: !52)
+!10 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 59, file: !54, scope: !1, type: !11, function: i32 (i32, i8**)* @main, variables: !52)
 !11 = !DISubroutineType(types: !12)
 !12 = !{!13}
 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!14 = !DISubprogram(name: "printFV", line: 41, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 41, file: !55, scope: !15, type: !16, variables: !53)
+!14 = distinct !DISubprogram(name: "printFV", line: 41, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 41, file: !55, scope: !15, type: !16, variables: !53)
 !15 = !DIFile(filename: "/Volumes/Lalgate/work/llvm/projects/llvm-test/SingleSource/UnitTests/Vector/helpers.h", directory: "/private/tmp")
 !16 = !DISubroutineType(types: !17)
 !17 = !{null}

diff --git a/llvm/test/CodeGen/ARM/debug-info-s16-reg.ll b/llvm/test/CodeGen/ARM/debug-info-s16-reg.ll
@@ -65,14 +65,14 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!53}
 
-!0 = !DISubprogram(name: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !51, scope: !1, type: !3, function: i32 (i8*, float, i8)* @inlineprinter, variables: !48)
+!0 = distinct !DISubprogram(name: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !51, scope: !1, type: !3, function: i32 (i8*, float, i8)* @inlineprinter, variables: !48)
 !1 = !DIFile(filename: "a.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: 1, file: !51, enums: !52, retainedTypes: !52, subprograms: !47, imports:  null)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !51, scope: !1, type: !3, function: i32 (i8*, float, i8)* @printer, variables: !49)
-!7 = !DISubprogram(name: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !51, scope: !1, type: !3, function: i32 (i32, i8**)* @main, variables: !50)
+!6 = distinct !DISubprogram(name: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !51, scope: !1, type: !3, function: i32 (i8*, float, i8)* @printer, variables: !49)
+!7 = distinct !DISubprogram(name: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !51, scope: !1, type: !3, function: i32 (i32, i8**)* @main, variables: !50)
 !8 = !DILocalVariable(name: "ptr", line: 4, arg: 1, scope: !0, file: !1, type: !9)
 !9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, scope: !2, baseType: null)
 !10 = !DILocalVariable(name: "val", line: 4, arg: 2, scope: !0, file: !1, type: !11)

diff --git a/llvm/test/CodeGen/ARM/debug-info-sreg2.ll b/llvm/test/CodeGen/ARM/debug-info-sreg2.ll
@@ -44,7 +44,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!20}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130845)", isOptimized: true, emissionKind: 1, file: !18, enums: !19, retainedTypes: !19, subprograms: !16, imports:  null)
-!1 = !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !18, scope: !2, type: !3, function: void ()* @_Z3foov, variables: !17)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !18, scope: !2, type: !3, function: void ()* @_Z3foov, variables: !17)
 !2 = !DIFile(filename: "k.cc", directory: "/private/tmp")
 !3 = !DISubroutineType(types: !4)
 !4 = !{null}

diff --git a/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll b/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
@@ -43,7 +43,7 @@ define void @test_basic() #0 {
 !1 = !DIFile(filename: "var.c", directory: "/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "test_basic", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: void ()* @test_basic, variables: !2)
+!4 = distinct !DISubprogram(name: "test_basic", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: void ()* @test_basic, variables: !2)
 !5 = !DIFile(filename: "var.c", directory: "/tmp")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/ARM/sched-it-debug-nodes.ll b/llvm/test/CodeGen/ARM/sched-it-debug-nodes.ll
@@ -54,7 +54,7 @@ attributes #3 = { nounwind }
 !1 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "f", scope: !5, file: !5, line: 9, type: !6, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, function: i32 (%struct.s*, i32, i8*, i32)* @f, variables: !18)
+!4 = distinct !DISubprogram(name: "f", scope: !5, file: !5, line: 9, type: !6, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, function: i32 (%struct.s*, i32, i8*, i32)* @f, variables: !18)
 !5 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !9, !12, !13, !17}

diff --git a/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll b/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll
@@ -35,7 +35,7 @@ define void @stack_offsets() {
 !1 = !DIFile(filename: "tmp.c", directory: "/Users/tim/llvm/build")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "bar", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @stack_offsets, variables: !2)
+!4 = distinct !DISubprogram(name: "bar", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @stack_offsets, variables: !2)
 !5 = !DIFile(filename: "tmp.c", directory: "/Users/tim/llvm/build")
 !6 = !DISubroutineType(types: !7)
 !7 = !{null}

diff --git a/llvm/test/CodeGen/Generic/dbg_value.ll b/llvm/test/CodeGen/Generic/dbg_value.ll
@@ -4,11 +4,12 @@
 %0 = type { i32, i32 }
 
 define void @t(%0*, i32, i32, i32, i32) nounwind {
-  tail call void @llvm.dbg.value(metadata %0* %0, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !DISubprogram())
+  tail call void @llvm.dbg.value(metadata %0* %0, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)
   unreachable
 }
 
 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
 
 ; !0 should conform to the format of DIVariable.
-!0 = !DILocalVariable(name: "a", arg: 1, scope: !DISubprogram())
+!0 = !DILocalVariable(name: "a", arg: 1, scope: !1)
+!1 = distinct !DISubprogram()
diff --git a/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll b/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll
@@ -40,7 +40,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "QuIC LLVM Hexagon Clang version 6.1-pre-unknown, (git://git-hexagon-aus.quicinc.com/llvm/clang-mainline.git e9382867661454cdf44addb39430741578e9765c) (llvm/llvm-mainline.git 36412bb1fcf03ed426d4437b41198bae066675ac)", isOptimized: true, emissionKind: 1, file: !28, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2)
 !2 = !{}
 !3 = !{!5}
-!5 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !28, scope: null, type: !7, function: void (i32*, i32*)* @foo, variables: !11)
+!5 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !28, scope: null, type: !7, function: void (i32*, i32*)* @foo, variables: !11)
 !6 = !DIFile(filename: "hwloop-dbg.c", directory: "/usr2/kparzysz/s.hex/t")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null, !9, !9}

diff --git a/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll b/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
@@ -14,7 +14,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!13}
 
-!0 = !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: !1, type: !3, function: i32 ()* @main)
+!0 = distinct !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: !1, type: !3, function: i32 ()* @main)
 !1 = !DIFile(filename: "/tmp/x.c", directory: "/Users/manav")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 120996)", isOptimized: false, emissionKind: 0, file: !12, enums: !6, retainedTypes: !6, subprograms: !11)
 !3 = !DISubroutineType(types: !4)

diff --git a/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-debug-location.mir b/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-debug-location.mir
@@ -24,7 +24,7 @@
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
   !3 = !{!4}
-  !4 = !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
+  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-exclaim.mir b/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-exclaim.mir
@@ -24,7 +24,7 @@
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
   !3 = !{!4}
-  !4 = !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
+  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir b/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
@@ -35,7 +35,7 @@
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
   !3 = !{!4}
-  !4 = !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
+  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir b/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir
@@ -27,7 +27,7 @@
   !2 = !{}
   !3 = !{i32 1, !"Debug Info Version", i32 3}
   !4 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 16, type: !6)
-  !5 = !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
+  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
   !6 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
   !7 = !DIExpression()
   !8 = !DILocation(line: 0, scope: !5)

diff --git a/llvm/test/CodeGen/MIR/X86/metadata-operands.mir b/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
@@ -26,7 +26,7 @@
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
   !3 = !{!4}
-  !4 = !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
+  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir b/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
@@ -36,7 +36,7 @@
   !2 = !{}
   !3 = !{i32 1, !"Debug Info Version", i32 3}
   !4 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 16, type: !6)
-  !5 = !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
+  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
   !6 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
   !7 = !DIExpression()
   !8 = !DILocation(line: 0, scope: !5)

diff --git a/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir b/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir
@@ -24,7 +24,7 @@
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
   !3 = !{!4}
-  !4 = !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
+  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32)* @test, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}

diff --git a/llvm/test/CodeGen/PowerPC/dbg.ll b/llvm/test/CodeGen/PowerPC/dbg.ll
@@ -20,7 +20,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1", isOptimized: true, emissionKind: 0, file: !21, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1, imports: !1)
 !1 = !{}
 !3 = !{!5}
-!5 = !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !21, scope: null, type: !7, function: i32 (i32, i8**)* @main, variables: !13)
+!5 = distinct !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !21, scope: null, type: !7, function: i32 (i32, i8**)* @main, variables: !13)
 !6 = !DIFile(filename: "dbg.c", directory: "/src")
 !7 = !DISubroutineType(types: !8)
 !8 = !{!9, !9, !10}

diff --git a/llvm/test/CodeGen/PowerPC/pr17168.ll b/llvm/test/CodeGen/PowerPC/pr17168.ll
diff --git a/llvm/test/CodeGen/PowerPC/pr24546.ll b/llvm/test/CodeGen/PowerPC/pr24546.ll
@@ -62,7 +62,7 @@ attributes #3 = { nounwind }
 !3 = !{!4}
 !4 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
 !5 = !{!6, !18}
-!6 = !DISubprogram(name: "_php_math_round", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: true, function: double (double, i32, i32)* @_php_math_round, variables: !10)
+!6 = distinct !DISubprogram(name: "_php_math_round", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: true, function: double (double, i32, i32)* @_php_math_round, variables: !10)
 !7 = !DISubroutineType(types: !8)
 !8 = !{!4, !4, !9, !9}
 !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
@@ -74,7 +74,7 @@ attributes #3 = { nounwind }
 !15 = !DILocalVariable(name: "f2", scope: !6, file: !1, line: 17, type: !4)
 !16 = !DILocalVariable(name: "tmp_value", scope: !6, file: !1, line: 18, type: !4)
 !17 = !DILocalVariable(name: "precision_places", scope: !6, file: !1, line: 19, type: !9)
-!18 = !DISubprogram(name: "php_intpow10", scope: !1, file: !1, line: 1, type: !19, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, variables: !21)
+!18 = distinct !DISubprogram(name: "php_intpow10", scope: !1, file: !1, line: 1, type: !19, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, variables: !21)
 !19 = !DISubroutineType(types: !20)
 !20 = !{!4, !9}
 !21 = !{!22}

diff --git a/llvm/test/CodeGen/PowerPC/unwind-dw2-g.ll b/llvm/test/CodeGen/PowerPC/unwind-dw2-g.ll
@@ -25,7 +25,7 @@ attributes #0 = { nounwind }
 !1 = !DIFile(filename: "/tmp/unwind-dw2.c", directory: "/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @foo, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @foo, variables: !2)
 !5 = !DIFile(filename: "/tmp/unwind-dw2.c", directory: "/tmp")
 !6 = !DISubroutineType(types: !7)
 !7 = !{null}

diff --git a/llvm/test/CodeGen/Thumb/2010-07-15-debugOrdering.ll b/llvm/test/CodeGen/Thumb/2010-07-15-debugOrdering.ll
@@ -51,7 +51,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = !DILocation(line: 46, scope: !1)
 !1 = distinct !DILexicalBlock(line: 44, column: 0, file: !101, scope: !2)
 !2 = distinct !DILexicalBlock(line: 44, column: 0, file: !101, scope: !3)
-!3 = !DISubprogram(name: "getClosestDiagonal3", linkageName: "_Z19getClosestDiagonal3ii", line: 44, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !101, scope: null, type: !6)
+!3 = distinct !DISubprogram(name: "getClosestDiagonal3", linkageName: "_Z19getClosestDiagonal3ii", line: 44, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !101, scope: null, type: !6)
 !4 = !DIFile(filename: "ggEdgeDiscrepancy.cc", directory: "/Volumes/Home/grosbaj/sources/llvm-externals/speccpu2000/benchspec/CINT2000/252.eon/src")
 !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 00)", isOptimized: true, emissionKind: 0, file: !101, enums: !102, retainedTypes: !102, subprograms: !103)
 !6 = !DISubroutineType(types: !7)
@@ -87,12 +87,12 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !34 = !DIDerivedType(tag: DW_TAG_const_type, size: 192, align: 32, file: !101, scope: !4, baseType: !8)
 !35 = !DISubprogram(name: "y", linkageName: "_ZNK9ggVector31yEv", line: 83, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !31)
 !36 = !DISubprogram(name: "z", linkageName: "_ZNK9ggVector31zEv", line: 84, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !31)
-!37 = !DISubprogram(name: "x", linkageName: "_ZN9ggVector31xEv", line: 85, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
+!37 = distinct !DISubprogram(name: "x", linkageName: "_ZN9ggVector31xEv", line: 85, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
 !38 = !DISubroutineType(types: !39)
 !39 = !{!40, !19}
 !40 = !DIDerivedType(tag: DW_TAG_reference_type, name: "double", size: 32, align: 32, file: !101, scope: !4, baseType: !13)
-!41 = !DISubprogram(name: "y", linkageName: "_ZN9ggVector31yEv", line: 86, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
-!42 = !DISubprogram(name: "z", linkageName: "_ZN9ggVector31zEv", line: 87, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
+!41 = distinct !DISubprogram(name: "y", linkageName: "_ZN9ggVector31yEv", line: 86, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
+!42 = distinct !DISubprogram(name: "z", linkageName: "_ZN9ggVector31zEv", line: 87, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !38)
 !43 = !DISubprogram(name: "SetX", linkageName: "_ZN9ggVector34SetXEd", line: 88, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !44)
 !44 = !DISubroutineType(types: !45)
 !45 = !{null, !19, !13}
@@ -127,7 +127,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !74 = !DISubprogram(name: "operator/=", linkageName: "_ZN9ggVector3dVEd", line: 324, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !72)
 !75 = !DISubprogram(name: "length", linkageName: "_ZNK9ggVector36lengthEv", line: 121, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !31)
 !76 = !DISubprogram(name: "squaredLength", linkageName: "_ZNK9ggVector313squaredLengthEv", line: 122, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !31)
-!77 = !DISubprogram(name: "MakeUnitVector", linkageName: "_ZN9ggVector314MakeUnitVectorEv", line: 217, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !24)
+!77 = distinct !DISubprogram(name: "MakeUnitVector", linkageName: "_ZN9ggVector314MakeUnitVectorEv", line: 217, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !24)
 !78 = !DISubprogram(name: "Perturb", linkageName: "_ZNK9ggVector37PerturbEdd", line: 126, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !9, scope: !8, type: !79)
 !79 = !DISubroutineType(types: !80)
 !80 = !{!8, !33, !13, !13}

diff --git a/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll b/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll
@@ -77,7 +77,7 @@ declare i64 @strlen(i8*) nounwind readonly
 declare void @llvm.stackrestore(i8*) nounwind
 
 !0 = !DILocalVariable(name: "s1", line: 2, arg: 1, scope: !1, file: !2, type: !6)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !2, type: !3)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !2, type: !3)
 !2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !17, enums: !18, retainedTypes: !18)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5, !6}

diff --git a/llvm/test/CodeGen/X86/2009-10-16-Scope.ll b/llvm/test/CodeGen/X86/2009-10-16-Scope.ll
@@ -24,7 +24,7 @@ declare i32 @foo(i32) ssp
 
 !0 = !DILocation(line: 5, column: 2, scope: !1)
 !1 = distinct !DILexicalBlock(line: 1, column: 1, file: null, scope: !2)
-!2 = !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !3)
+!2 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !3)
 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 1.1", isOptimized: true, emissionKind: 0, file: !8, retainedTypes: !9)
 !4 = !DILocalVariable(name: "count_", line: 5, scope: !5, file: !3, type: !6)
 !5 = distinct !DILexicalBlock(line: 1, column: 1, file: null, scope: !1)

diff --git a/llvm/test/CodeGen/X86/2010-01-18-DbgValue.ll b/llvm/test/CodeGen/X86/2010-01-18-DbgValue.ll
@@ -32,7 +32,7 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!21}
 
 !0 = !DILocalVariable(name: "my_r0", line: 11, arg: 1, scope: !1, file: !2, type: !7)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !19, scope: !2, type: !4, function: double (%struct.Rect*)* @foo)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !19, scope: !2, type: !4, function: double (%struct.Rect*)* @foo)
 !2 = !DIFile(filename: "b2.c", directory: "/tmp/")
 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !19, enums: !20, retainedTypes: !20, subprograms: !18)
 !4 = !DISubroutineType(types: !5)

diff --git a/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll b/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll
@@ -26,7 +26,7 @@ declare void @"tart.reflect.ComplexType.create->tart.core.Object"(%tart.reflect.
 !7 = !DIDerivedType(tag: DW_TAG_member, name: "z", line: 1, size: 64, align: 64, offset: 128, file: !15, scope: !2, baseType: !5)
 !8 = !DILocalVariable(name: "t", line: 5, scope: !9, file: !0, type: !2)
 !9 = distinct !DILexicalBlock(line: 0, column: 0, file: null, scope: !10)
-!10 = !DISubprogram(name: "foo", linkageName: "foo", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !0, type: !11)
+!10 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !0, type: !11)
 !11 = !DISubroutineType(types: !12)
 !12 = !{!13}
 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/CodeGen/X86/2010-05-25-DotDebugLoc.ll b/llvm/test/CodeGen/X86/2010-05-25-DotDebugLoc.ll
@@ -200,7 +200,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!48}
 
 !0 = !DILocalVariable(name: "a", line: 1921, arg: 1, scope: !1, file: !2, type: !9)
-!1 = !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 1922, file: !45, scope: !2, type: !4, function: %0 (float, float, float, float)* @__divsc3, variables: !43)
+!1 = distinct !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 1922, file: !45, scope: !2, type: !4, function: %0 (float, float, float, float)* @__divsc3, variables: !43)
 !2 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 1, file: !45, enums: !47, retainedTypes: !47, subprograms: !44, imports:  null)
 !4 = !DISubroutineType(types: !5)

diff --git a/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll b/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
@@ -29,11 +29,11 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 1, file: !36, enums: !37, retainedTypes: !37, subprograms: !32, globals: !31, imports:  !37)
 !3 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !4 = !DILocalVariable(name: "x", line: 12, arg: 1, scope: !5, file: !1, type: !3)
-!5 = !DISubprogram(name: "foo", linkageName: "foo", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 13, file: !36, scope: !1, type: !6, function: void (i32)* @foo, variables: !33)
+!5 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 13, file: !36, scope: !1, type: !6, function: void (i32)* @foo, variables: !33)
 !6 = !DISubroutineType(types: !7)
 !7 = !{null, !3}
 !8 = !DILocalVariable(name: "myvar", line: 17, arg: 1, scope: !9, file: !1, type: !13)
-!9 = !DISubprogram(name: "bar", linkageName: "bar", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 17, file: !36, scope: !1, type: !10, function: i8* (%struct.a*)* @bar, variables: !34)
+!9 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 17, file: !36, scope: !1, type: !10, function: i8* (%struct.a*)* @bar, variables: !34)
 !10 = !DISubroutineType(types: !11)
 !11 = !{!12, !13}
 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !36, scope: !1, baseType: null)
@@ -43,7 +43,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !16 = !DIDerivedType(tag: DW_TAG_member, name: "c", line: 3, size: 32, align: 32, file: !36, scope: !14, baseType: !3)
 !17 = !DIDerivedType(tag: DW_TAG_member, name: "d", line: 4, size: 64, align: 64, offset: 64, file: !36, scope: !14, baseType: !13)
 !18 = !DILocalVariable(name: "argc", line: 22, arg: 1, scope: !19, file: !1, type: !3)
-!19 = !DISubprogram(name: "main", linkageName: "main", line: 22, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 22, file: !36, scope: !1, type: !20, variables: !35)
+!19 = distinct !DISubprogram(name: "main", linkageName: "main", line: 22, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 22, file: !36, scope: !1, type: !20, variables: !35)
 !20 = !DISubroutineType(types: !21)
 !21 = !{!3, !3, !22}
 !22 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !36, scope: !1, baseType: !23)

diff --git a/llvm/test/CodeGen/X86/2010-05-28-Crash.ll b/llvm/test/CodeGen/X86/2010-05-28-Crash.ll
@@ -26,14 +26,14 @@ entry:
 !llvm.module.flags = !{!20}
 
 !0 = !DILocalVariable(name: "y", line: 2, arg: 1, scope: !1, file: !2, type: !6)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 2, file: !18, scope: !2, type: !4, function: i32 (i32)* @foo, variables: !15)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 2, file: !18, scope: !2, type: !4, function: i32 (i32)* @foo, variables: !15)
 !2 = !DIFile(filename: "f.c", directory: "/tmp")
 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 1, file: !18, enums: !19, retainedTypes: !19, subprograms: !17, imports:  null)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6, !6}
 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !7 = !DILocalVariable(name: "x", line: 6, arg: 1, scope: !8, file: !2, type: !6)
-!8 = !DISubprogram(name: "bar", linkageName: "bar", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 6, file: !18, scope: !2, type: !4, function: i32 (i32)* @bar, variables: !16)
+!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 6, file: !18, scope: !2, type: !4, function: i32 (i32)* @bar, variables: !16)
 !9 = !DILocation(line: 3, scope: !10)
 !10 = distinct !DILexicalBlock(line: 2, column: 0, file: !18, scope: !1)
 !11 = !{i32 1}

diff --git a/llvm/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll b/llvm/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll
@@ -24,14 +24,14 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.lv = !{!0, !14, !15, !16, !17, !24, !25, !28}
 
 !0 = !DILocalVariable(name: "this", line: 11, arg: 1, scope: !1, file: !3, type: !12)
-!1 = !DISubprogram(name: "bar", linkageName: "_ZN3foo3barEi", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 11, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* null)
+!1 = distinct !DISubprogram(name: "bar", linkageName: "_ZN3foo3barEi", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 11, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* null)
 !2 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 3, size: 32, align: 32, file: !31, scope: !3, elements: !5)
 !3 = !DIFile(filename: "foo.cp", directory: "/tmp/")
 !4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 LLVM build", isOptimized: true, emissionKind: 0, file: !31, enums: !32, retainedTypes: !32, subprograms: !33)
 !5 = !{!6, !1, !8}
 !6 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 8, size: 32, align: 32, file: !31, scope: !2, baseType: !7)
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!8 = !DISubprogram(name: "baz", linkageName: "_ZN3foo3bazEi", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 15, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* @_ZN3foo3bazEi)
+!8 = distinct !DISubprogram(name: "baz", linkageName: "_ZN3foo3bazEi", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 15, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* @_ZN3foo3bazEi)
 !9 = !DISubroutineType(types: !10)
 !10 = !{!7, !11, !7}
 !11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !31, scope: !3, baseType: !2)
@@ -41,7 +41,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !15 = !DILocalVariable(name: "this", line: 15, arg: 1, scope: !8, file: !3, type: !12)
 !16 = !DILocalVariable(name: "x", line: 15, arg: 2, scope: !8, file: !3, type: !7)
 !17 = !DILocalVariable(name: "argc", line: 19, arg: 1, scope: !18, file: !3, type: !7)
-!18 = !DISubprogram(name: "main", linkageName: "main", line: 19, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 19, file: !31, scope: !3, type: !19)
+!18 = distinct !DISubprogram(name: "main", linkageName: "main", line: 19, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 19, file: !31, scope: !3, type: !19)
 !19 = !DISubroutineType(types: !20)
 !20 = !{!7, !7, !21}
 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !31, scope: !3, baseType: !22)

diff --git a/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll b/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll
@@ -7,7 +7,7 @@
 !39 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", isOptimized: true, emissionKind: 0, file: !109, enums: !108, retainedTypes: !108)
 !46 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !109, baseType: !47)
 !47 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
-!97 = !DISubprogram(name: "main", linkageName: "main", line: 73, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !39, type: !98)
+!97 = distinct !DISubprogram(name: "main", linkageName: "main", line: 73, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !39, type: !98)
 !98 = !DISubroutineType(types: !99)
 !99 = !{!100}
 !100 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/CodeGen/X86/2010-08-04-StackVariable.ll b/llvm/test/CodeGen/X86/2010-08-04-StackVariable.ll
@@ -94,11 +94,11 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !14 = !DISubroutineType(types: !15)
 !15 = !{null, !12}
-!16 = !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !47, scope: !1, type: !14, function: void (%struct.SVal*)* @_ZN4SValC1Ev)
-!17 = !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 16, file: !47, scope: !2, type: !18, function: i32 (i32, %struct.SVal*)* @_Z3fooi4SVal)
+!16 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !47, scope: !1, type: !14, function: void (%struct.SVal*)* @_ZN4SValC1Ev)
+!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 16, file: !47, scope: !2, type: !18, function: i32 (i32, %struct.SVal*)* @_Z3fooi4SVal)
 !18 = !DISubroutineType(types: !19)
 !19 = !{!13, !13, !1}
-!20 = !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 23, file: !47, scope: !2, type: !21, function: i32 ()* @main)
+!20 = distinct !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 23, file: !47, scope: !2, type: !21, function: i32 ()* @main)
 !21 = !DISubroutineType(types: !22)
 !22 = !{!13}
 !23 = !DILocalVariable(name: "i", line: 16, arg: 1, scope: !17, file: !2, type: !13)

diff --git a/llvm/test/CodeGen/X86/2010-09-16-EmptyFilename.ll b/llvm/test/CodeGen/X86/2010-09-16-EmptyFilename.ll
@@ -15,13 +15,13 @@ entry:
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!17}
 
-!0 = !DISubprogram(name: "foo", linkageName: "foo", line: 53, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !14, scope: !1, type: !3, function: i32 ()* @foo)
+!0 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 53, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !14, scope: !1, type: !3, function: i32 ()* @foo)
 !1 = !DIFile(filename: "", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 114084)", isOptimized: false, emissionKind: 0, file: !15, enums: !16, retainedTypes: !16, subprograms: !13)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !15, scope: !7, type: !3, function: i32 ()* @bar)
+!6 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !15, scope: !7, type: !3, function: i32 ()* @bar)
 !7 = !DIFile(filename: "bug.c", directory: "/private/tmp")
 !8 = !DILocation(line: 53, column: 13, scope: !9)
 !9 = distinct !DILexicalBlock(line: 53, column: 11, file: !14, scope: !0)

diff --git a/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll b/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll
@@ -18,7 +18,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!19}
 
-!0 = !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !17, scope: !1, type: !3, function: i32 (%struct.bar*)* @foo, variables: !16)
+!0 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !17, scope: !1, type: !3, function: i32 (%struct.bar*)* @foo, variables: !16)
 !1 = !DIFile(filename: "one.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 117922)", isOptimized: true, emissionKind: 0, file: !17, enums: !18, retainedTypes: !18, subprograms: !15, imports:  null)
 !3 = !DISubroutineType(types: !4)

diff --git a/llvm/test/CodeGen/X86/2011-01-24-DbgValue-Before-Use.ll b/llvm/test/CodeGen/X86/2011-01-24-DbgValue-Before-Use.ll
@@ -78,13 +78,13 @@ declare i32 @puts(i8* nocapture) nounwind
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!33}
 
-!0 = !DISubprogram(name: "gcd", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !31, scope: !1, type: !3, function: i64 (i64, i64)* @gcd, variables: !29)
+!0 = distinct !DISubprogram(name: "gcd", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !31, scope: !1, type: !3, function: i64 (i64, i64)* @gcd, variables: !29)
 !1 = !DIFile(filename: "rem_small.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 124117)", isOptimized: true, emissionKind: 1, file: !31, enums: !32, retainedTypes: !32, subprograms: !28, imports:  null)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "main", line: 25, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !31, scope: !1, type: !7, function: i32 ()* @main, variables: !30)
+!6 = distinct !DISubprogram(name: "main", line: 25, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !31, scope: !1, type: !7, function: i32 ()* @main, variables: !30)
 !7 = !DISubroutineType(types: !8)
 !8 = !{!9}
 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
@@ -47,6 +47,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !11 = !DIFile(filename: "MultiSource/Benchmarks/Olden/bh/newbh.c", directory: "MultiSource/Benchmarks/Olden/bh")
 !12 = !{i32 1, !"Debug Info Version", i32 3}
 !13 = !{!14}
-!14 = !DISubprogram(name: "subdivp", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !11, scope: !5, type: !15, function: i16 (%struct.node.0.27*, double, double, %struct.hgstruct.2.29* )* @subdivp)
+!14 = distinct !DISubprogram(name: "subdivp", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !11, scope: !5, type: !15, function: i16 (%struct.node.0.27*, double, double, %struct.hgstruct.2.29* )* @subdivp)
 !15 = !DISubroutineType(types: !16)
 !16 = !{null}
diff --git a/llvm/test/CodeGen/X86/2012-11-30-misched-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-misched-dbg.ll
@@ -86,7 +86,7 @@ declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
 !19 = !DIFile(filename: "MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c", directory: "MultiSource/Benchmarks/MiBench/consumer-typeset")
 
 !20 = !{!21}
-!21 = !DISubprogram(name: "AttachGalley", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22, function: i32 (%union.rec**)* @AttachGalley)
+!21 = distinct !DISubprogram(name: "AttachGalley", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22, function: i32 (%union.rec**)* @AttachGalley)
 !22 = !DISubroutineType(types: !23)
 !23 = !{null}
 
@@ -141,4 +141,4 @@ declare void @_Znwm()
 !34 = !DIFile(filename: "SingleSource/Benchmarks/Shootout-C++/hash.cpp", directory: "SingleSource/Benchmarks/Shootout-C++")
 !35 = !{i32 1, !"Debug Info Version", i32 3}
 !36 = !{!37}
-!37 = !DISubprogram(name: "main", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22, function: void ()* @main)
+!37 = distinct !DISubprogram(name: "main", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22, function: void ()* @main)
diff --git a/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
@@ -38,7 +38,7 @@ invoke.cont44:                                    ; preds = %if.end
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 168984) (llvm/trunk 168983)", isOptimized: true, emissionKind: 0, file: !6, subprograms: !1)
 !1 = !{!2}
-!2 = !DISubprogram(name: "test", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !6, scope: !5, type: !7, function: void ()* @test)
+!2 = distinct !DISubprogram(name: "test", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !6, scope: !5, type: !7, function: void ()* @test)
 !3 = !DILocalVariable(name: "callback", line: 214, scope: !2, type: !4)
 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "btCompoundLeafCallback", line: 90, size: 512, align: 64, file: !6)
 !5 = !DIFile(filename: "MultiSource/Benchmarks/Bullet/btCompoundCollisionAlgorithm.cpp", directory: "MultiSource/Benchmarks/Bullet")

diff --git a/llvm/test/CodeGen/X86/MachineSink-DbgValue.ll b/llvm/test/CodeGen/X86/MachineSink-DbgValue.ll
@@ -29,7 +29,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!22}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "Apple clang version 3.0 (tags/Apple/clang-211.10.1) (based on LLVM 3.0svn)", isOptimized: true, emissionKind: 1, file: !20, enums: !21, retainedTypes: !21, subprograms: !18, imports:  null)
-!1 = !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !20, scope: !2, type: !3, function: i32 (i32, i32*)* @foo, variables: !19)
+!1 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !20, scope: !2, type: !3, function: i32 (i32, i32*)* @foo, variables: !19)
 !2 = !DIFile(filename: "a.c", directory: "/private/tmp")
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}

diff --git a/llvm/test/CodeGen/X86/StackColoring-dbg.ll b/llvm/test/CodeGen/X86/StackColoring-dbg.ll
@@ -30,6 +30,6 @@ declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind
 !0 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "clang", isOptimized: true, emissionKind: 0, file: !1, enums: !{}, retainedTypes: !{})
 !1 = !DIFile(filename: "t.c", directory: "")
 !16 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
-!2 = !DISubprogram()
+!2 = distinct !DISubprogram()
 !22 = !DILocalVariable(name: "x", line: 16, scope: !2, file: !1, type: !16)
 !23 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll b/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
@@ -137,7 +137,7 @@ attributes #2 = { nounwind readnone }
 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !22)
 !22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !"_ZTS4AAA3")
 !23 = !{!24, !35, !40}
-!24 = !DISubprogram(name: "bar", linkageName: "_Z3barii", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !1, scope: !25, type: !26, function: void (i32, i32)* @_Z3barii, variables: !29)
+!24 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barii", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !1, scope: !25, type: !26, function: void (i32, i32)* @_Z3barii, variables: !29)
 !25 = !DIFile(filename: "dbg-changes-codegen-branch-folding.cpp", directory: "/tmp/dbginfo")
 !26 = !DISubroutineType(types: !27)
 !27 = !{null, !28, !28}
@@ -148,12 +148,12 @@ attributes #2 = { nounwind readnone }
 !32 = !DILocalVariable(name: "temp", line: 12, scope: !24, file: !25, type: !15)
 !33 = !DILocalVariable(name: "var1", line: 17, scope: !24, file: !25, type: !"_ZTS4AAA3")
 !34 = !DILocalVariable(name: "var2", line: 18, scope: !24, file: !25, type: !"_ZTS4AAA3")
-!35 = !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !1, scope: !"_ZTS4AAA3", type: !12, declaration: !17, variables: !36)
+!35 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !1, scope: !"_ZTS4AAA3", type: !12, declaration: !17, variables: !36)
 !36 = !{!37, !39}
 !37 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38)
 !38 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS4AAA3")
 !39 = !DILocalVariable(name: "value", line: 6, arg: 2, scope: !35, file: !25, type: !15)
-!40 = !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !1, scope: !"_ZTS4AAA3", type: !12, declaration: !11, variables: !41)
+!40 = distinct !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !1, scope: !"_ZTS4AAA3", type: !12, declaration: !11, variables: !41)
 !41 = !{!42, !43}
 !42 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !40, type: !38)
 !43 = !DILocalVariable(name: "value", line: 5, arg: 2, scope: !40, file: !25, type: !15)

diff --git a/llvm/test/CodeGen/X86/dbg-changes-codegen.ll b/llvm/test/CodeGen/X86/dbg-changes-codegen.ll
@@ -44,7 +44,7 @@
 define zeroext i1 @_ZN3Foo3batEv(%struct.Foo* %this) #0 align 2 {
 entry:
   %0 = load %struct.Foo*, %struct.Foo** @pfoo, align 8
-  tail call void @llvm.dbg.value(metadata %struct.Foo* %0, i64 0, metadata !62, metadata !DIExpression()), !dbg !DILocation(scope: !DISubprogram())
+  tail call void @llvm.dbg.value(metadata %struct.Foo* %0, i64 0, metadata !62, metadata !DIExpression()), !dbg !DILocation(scope: !1)
   %cmp.i = icmp eq %struct.Foo* %0, %this
   ret i1 %cmp.i
 }
@@ -53,7 +53,7 @@ entry:
 define void @_Z3bazv() #1 {
 entry:
   %0 = load %struct.Wibble*, %struct.Wibble** @wibble1, align 8
-  tail call void @llvm.dbg.value(metadata %struct.Flibble* undef, i64 0, metadata !65, metadata !DIExpression()), !dbg !DILocation(scope: !DISubprogram())
+  tail call void @llvm.dbg.value(metadata %struct.Flibble* undef, i64 0, metadata !65, metadata !DIExpression()), !dbg !DILocation(scope: !1)
   %1 = load %struct.Wibble*, %struct.Wibble** @wibble2, align 8
   %cmp.i = icmp ugt %struct.Wibble* %1, %0
   br i1 %cmp.i, label %if.then.i, label %_ZN7Flibble3barEP6Wibble.exit
@@ -75,9 +75,10 @@ attributes #0 = { nounwind readonly uwtable "less-precise-fpmad"="false" "no-fra
 attributes #1 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
 attributes #2 = { nounwind readnone }
 
+!1 = distinct !DISubprogram()
 
 !17 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: null)
 !45 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: null)
-!62 = !DILocalVariable(name: "arg", line: 4, arg: 2, scope: !DISubprogram(), type: !17)
+!62 = !DILocalVariable(name: "arg", line: 4, arg: 2, scope: !1, type: !17)
 !64 = !{%struct.Flibble* undef}
-!65 = !DILocalVariable(name: "this", line: 13, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !DISubprogram(), type: !45)
+!65 = !DILocalVariable(name: "this", line: 13, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !1, type: !45)
diff --git a/llvm/test/CodeGen/X86/dbg-combine.ll b/llvm/test/CodeGen/X86/dbg-combine.ll
@@ -78,7 +78,7 @@ attributes #2 = { nounwind }
 !1 = !DIFile(filename: "dbg-combine.c", directory: "/home/probinson/projects/scratch")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: i32 ()* @foo, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: i32 ()* @foo, variables: !2)
 !5 = !DIFile(filename: "dbg-combine.c", directory: "/home/probinson/projects/scratch")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8}

diff --git a/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll b/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll
@@ -47,7 +47,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !1 = !DIFile(filename: "fpu_ieee.cpp", directory: "x87stackifier")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "fpuop_arithmetic", linkageName: "_Z16fpuop_arithmeticjj", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !6, type: !7, function: void (i32, i32)* @_Z16fpuop_arithmeticjj, variables: !10)
+!4 = distinct !DISubprogram(name: "fpuop_arithmetic", linkageName: "_Z16fpuop_arithmeticjj", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !6, type: !7, function: void (i32, i32)* @_Z16fpuop_arithmeticjj, variables: !10)
 !5 = !DIFile(filename: "f1.cpp", directory: "x87stackifier")
 !6 = !DIFile(filename: "f1.cpp", directory: "x87stackifier")
 !7 = !DISubroutineType(types: !8)

diff --git a/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll b/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll
@@ -54,7 +54,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: 1)
 !1 = !DIFile(filename: "24199.cpp", directory: "/bin")
 !2 = !{i32 2, !"Debug Info Version", i32 3}
-!3 = !DISubprogram(linkageName: "foo", file: !1, line: 18, isLocal: false, isDefinition: true, scopeLine: 18, function: void (%struct.A*)* @foo)
+!3 = distinct !DISubprogram(linkageName: "foo", file: !1, line: 18, isLocal: false, isDefinition: true, scopeLine: 18, function: void (%struct.A*)* @foo)
 !4 = !DIExpression()
 !5 = !DILocalVariable(name: "this", arg: 1, scope: !3, flags: DIFlagArtificial | DIFlagObjectPointer)
 !6 = !DILocation(line: 0, scope: !3)

diff --git a/llvm/test/CodeGen/X86/misched-code-difference-with-debug.ll b/llvm/test/CodeGen/X86/misched-code-difference-with-debug.ll
@@ -68,14 +68,14 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !3 = !{!4}
 !4 = !DICompositeType(tag: DW_TAG_class_type, name: "C", line: 2, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS1C")
 !5 = !{!6}
-!6 = !DISubprogram(name: "test", file: !1, scope: !"_ZTS1C", type: !7)
+!6 = !DISubprogram(name: "test", file: !1, scope: !"_ZTS1C", type: !7, isDefinition: false)
 !7 = !DISubroutineType(types: !8)
 !8 = !{!9, !10, !11, !11, !11, null}
 !9 = !DIBasicType(encoding: DW_ATE_signed, size: 32, align: 32, name: "int")
 !10 = !DIDerivedType(baseType: !"_ZTS1C", tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial)
 !11 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
 !12 = !{!13}
-!13 = !DISubprogram(name: "test_with_debug", linkageName: "test_with_debug", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !1, scope: !14, type: !15, function: void ()* @test_with_debug, variables: !17)
+!13 = distinct !DISubprogram(name: "test_with_debug", linkageName: "test_with_debug", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !1, scope: !14, type: !15, function: void ()* @test_with_debug, variables: !17)
 !14 = !DIFile(filename: "test.cpp", directory: "")
 !15 = !DISubroutineType(types: !16)
 !16 = !{null}

diff --git a/llvm/test/CodeGen/X86/null-streamer.ll b/llvm/test/CodeGen/X86/null-streamer.ll
@@ -18,7 +18,7 @@ define void @f1() {
 !1 = !DIFile(filename: "file.c", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !1, type: !6, function: i32 ()* null, variables: !2)
+!4 = distinct !DISubprogram(name: "", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !1, type: !6, function: i32 ()* null, variables: !2)
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8}
 !8 = !DIBasicType(tag: DW_TAG_base_type, size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll b/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
@@ -34,7 +34,7 @@ attributes #0 = { sspreq }
 !6 = !{!7}
 !7 = !DIEnumerator(name: "max_frame_size", value: 0) ; [ DW_TAG_enumerator ] [max_frame_size :: 0]
 !8 = !{!9, !24, !41, !65}
-!9 = !DISubprogram(name: "read_response_size", linkageName: "_Z18read_response_sizev", line: 27, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 27, file: !1, scope: !10, type: !11, function: i32 ()* @_Z18read_response_sizev, variables: !14)
+!9 = distinct !DISubprogram(name: "read_response_size", linkageName: "_Z18read_response_sizev", line: 27, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 27, file: !1, scope: !10, type: !11, function: i32 ()* @_Z18read_response_sizev, variables: !14)
 !10 = !DIFile(filename: "<unknown>", directory: "/Users/matt/ryan_bug")
 !11 = !DISubroutineType(types: !12)
 !12 = !{!13}
@@ -49,7 +49,7 @@ attributes #0 = { sspreq }
 !21 = !{i32 2, !"Dwarf Version", i32 2}
 !22 = !{i64* getelementptr inbounds ({ i64, [56 x i8] }, { i64, [56 x i8] }* @a, i32 0, i32 0)}
 !23 = !DILocalVariable(name: "p2", line: 12, arg: 2, scope: !24, file: !10, type: !32)
-!24 = !DISubprogram(name: "min<unsigned long long>", linkageName: "_ZN3__13minIyEERKT_S3_RS1_", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !1, scope: !25, type: !27, templateParams: !33, variables: !35)
+!24 = distinct !DISubprogram(name: "min<unsigned long long>", linkageName: "_ZN3__13minIyEERKT_S3_RS1_", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !1, scope: !25, type: !27, templateParams: !33, variables: !35)
 !25 = !DINamespace(name: "__1", line: 1, file: !26, scope: null)
 !26 = !DIFile(filename: "main.cpp", directory: "/Users/matt/ryan_bug")
 !27 = !DISubroutineType(types: !28)
@@ -66,7 +66,7 @@ attributes #0 = { sspreq }
 !38 = !DILocation(line: 33, scope: !9)
 !39 = !DILocation(line: 12, scope: !24, inlinedAt: !38)
 !40 = !DILocation(line: 9, scope: !41, inlinedAt: !59)
-!41 = !DISubprogram(name: "min<unsigned long long, __1::A>", linkageName: "_ZN3__13minIyNS_1AEEERKT_S4_RS2_T0_", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !1, scope: !25, type: !42, templateParams: !53, variables: !55)
+!41 = distinct !DISubprogram(name: "min<unsigned long long, __1::A>", linkageName: "_ZN3__13minIyNS_1AEEERKT_S4_RS2_T0_", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !1, scope: !25, type: !42, templateParams: !53, variables: !55)
 !42 = !DISubroutineType(types: !43)
 !43 = !{!29, !29, !32, !44}
 !44 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", size: 8, align: 8, file: !1, scope: !25, elements: !45)
@@ -86,7 +86,7 @@ attributes #0 = { sspreq }
 !59 = !DILocation(line: 13, scope: !24, inlinedAt: !38)
 !63 = !{i32 undef}
 !64 = !DILocalVariable(name: "p1", line: 1, arg: 2, scope: !65, file: !10, type: !50)
-!65 = !DISubprogram(name: "operator()", linkageName: "_ZN3__11AclERKiS2_", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !25, type: !47, declaration: !46, variables: !66)
+!65 = distinct !DISubprogram(name: "operator()", linkageName: "_ZN3__11AclERKiS2_", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !25, type: !47, declaration: !46, variables: !66)
 !66 = !{!67, !69, !70}
 !67 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !65, type: !68)
 !68 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !44)

diff --git a/llvm/test/CodeGen/X86/unknown-location.ll b/llvm/test/CodeGen/X86/unknown-location.ll
@@ -22,7 +22,7 @@ entry:
 !llvm.module.flags = !{!12}
 
 !0 = !DILocalVariable(name: "x", line: 1, arg: 2, scope: !1, file: !2, type: !6)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !10, scope: !2, type: !4, function: i32 (i32, i32, i32, i32)* @foo)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !10, scope: !2, type: !4, function: i32 (i32, i32, i32, i32)* @foo)
 !2 = !DIFile(filename: "test.c", directory: "/dir")
 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "producer", isOptimized: false, emissionKind: 0, file: !10, enums: !11, retainedTypes: !11, subprograms: !9)
 !4 = !DISubroutineType(types: !5)

diff --git a/llvm/test/CodeGen/XCore/dwarf_debug.ll b/llvm/test/CodeGen/XCore/dwarf_debug.ll
@@ -27,7 +27,7 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata)
 !1 = !DIFile(filename: "test.c", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !1, type: !6, function: i32 (i32)* @f, variables: !2)
+!4 = distinct !DISubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !1, type: !6, function: i32 (i32)* @f, variables: !2)
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8}
 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/DebugInfo/2009-11-05-DeadGlobalVariable.ll b/llvm/test/DebugInfo/2009-11-05-DeadGlobalVariable.ll
@@ -13,7 +13,7 @@ entry:
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 139632)", isOptimized: true, emissionKind: 0, file: !17, enums: !1, retainedTypes: !1, subprograms: !3, globals: !12)
 !1 = !{}
 !3 = !{!5}
-!5 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !17, scope: !6, type: !7, function: i32 ()* @foo)
+!5 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !17, scope: !6, type: !7, function: i32 ()* @foo)
 !6 = !DIFile(filename: "fb.c", directory: "/private/tmp")
 !7 = !DISubroutineType(types: !8)
 !8 = !{!9}

diff --git a/llvm/test/DebugInfo/2009-11-10-CurrentFn.ll b/llvm/test/DebugInfo/2009-11-10-CurrentFn.ll
@@ -16,7 +16,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 139632)", isOptimized: true, emissionKind: 0, file: !17, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1)
 !1 = !{}
 !3 = !{!5}
-!5 = !DISubprogram(name: "bar", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !17, scope: !6, type: !7, function: void (i32)* @bar, variables: !9)
+!5 = distinct !DISubprogram(name: "bar", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !17, scope: !6, type: !7, function: void (i32)* @bar, variables: !9)
 !6 = !DIFile(filename: "cf.c", directory: "/private/tmp")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null}

diff --git a/llvm/test/DebugInfo/2010-01-05-DbgScope.ll b/llvm/test/DebugInfo/2010-01-05-DbgScope.ll
@@ -13,7 +13,7 @@ entry:
 
 !0 = !DILocation(line: 571, column: 3, scope: !1)
 !1 = distinct !DILexicalBlock(line: 1, column: 1, file: !11, scope: !2)
-!2 = !DISubprogram(name: "foo", linkageName: "foo", line: 561, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !3, type: !4)
+!2 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 561, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !3, type: !4)
 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 1.1", isOptimized: true, emissionKind: 0, file: !11, enums: !12, retainedTypes: !12, subprograms: !13)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6}

diff --git a/llvm/test/DebugInfo/2010-03-12-llc-crash.ll b/llvm/test/DebugInfo/2010-03-12-llc-crash.ll
@@ -10,7 +10,7 @@ entry:
 }
 
 !0 = !DILocalVariable(name: "sy", line: 890, arg: 1, scope: !1, file: !2, type: !7)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 892, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !8, scope: !3, type: !4)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 892, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !8, scope: !3, type: !4)
 !2 = !DIFile(filename: "qpainter.h", directory: "QtGui")
 !3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang 1.1", isOptimized: true, emissionKind: 0, file: !9, enums: !10, retainedTypes: !10)
 !4 = !DISubroutineType(types: !6)

diff --git a/llvm/test/DebugInfo/2010-03-19-DbgDeclare.ll b/llvm/test/DebugInfo/2010-03-19-DbgDeclare.ll
@@ -14,7 +14,7 @@ entry:
 !0 = !DILocation(line: 662302, column: 26, scope: !1)
 !1 = !DILocalVariable(name: "foo", scope: !6)
 !4 = !DIFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch")
-!6 = !DISubprogram()
+!6 = distinct !DISubprogram()
 
 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !5 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/DebugInfo/2010-03-24-MemberFn.ll b/llvm/test/DebugInfo/2010-03-24-MemberFn.ll
@@ -42,7 +42,7 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !0 = !DILocalVariable(name: "s1", line: 3, scope: !1, file: !4, type: !9)
 !1 = distinct !DILexicalBlock(line: 3, column: 0, file: !25, scope: !2)
 !2 = distinct !DILexicalBlock(line: 3, column: 0, file: !25, scope: !3)
-!3 = !DISubprogram(name: "bar", linkageName: "_Z3barv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 3, file: !25, scope: !4, type: !6, function: i32 ()* @_Z3barv)
+!3 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 3, file: !25, scope: !4, type: !6, function: i32 ()* @_Z3barv)
 !4 = !DIFile(filename: "one.cc", directory: "/tmp/")
 !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !25, enums: !27, retainedTypes: !27, subprograms: !24, imports:  null)
 !6 = !DISubroutineType(types: !7)
@@ -51,7 +51,7 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !9 = !DICompositeType(tag: DW_TAG_structure_type, name: "S", line: 2, size: 8, align: 8, file: !26, scope: !4, elements: !11)
 !10 = !DIFile(filename: "one.h", directory: "/tmp/")
 !11 = !{!12}
-!12 = !DISubprogram(name: "foo", linkageName: "_ZN1S3fooEv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 3, file: !26, scope: !9, type: !13, function: i32 (%struct.S*)* @_ZN1S3fooEv)
+!12 = distinct !DISubprogram(name: "foo", linkageName: "_ZN1S3fooEv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 3, file: !26, scope: !9, type: !13, function: i32 (%struct.S*)* @_ZN1S3fooEv)
 !13 = !DISubroutineType(types: !14)
 !14 = !{!8, !15}
 !15 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !25, scope: !4, baseType: !9)

diff --git a/llvm/test/DebugInfo/2010-04-06-NestedFnDbgInfo.ll b/llvm/test/DebugInfo/2010-04-06-NestedFnDbgInfo.ll
@@ -72,15 +72,15 @@ entry:
 
 !0 = !DILocalVariable(name: "b", line: 16, scope: !1, file: !3, type: !8)
 !1 = distinct !DILexicalBlock(line: 15, column: 12, file: !38, scope: !2)
-!2 = !DISubprogram(name: "main", linkageName: "main", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 15, file: !38, scope: !3, type: !5, function: i32 ()* @main)
+!2 = distinct !DISubprogram(name: "main", linkageName: "main", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 15, file: !38, scope: !3, type: !5, function: i32 ()* @main)
 !3 = !DIFile(filename: "one.cc", directory: "/tmp")
 !4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang 1.5", isOptimized: false, emissionKind: 0, file: !38, enums: !39, retainedTypes: !39, subprograms: !37, imports:  null)
 !5 = !DISubroutineType(types: !6)
 !6 = !{!7}
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !8 = !DICompositeType(tag: DW_TAG_class_type, name: "B", line: 2, size: 8, align: 8, file: !38, scope: !3, elements: !9)
 !9 = !{!10}
-!10 = !DISubprogram(name: "fn", linkageName: "_ZN1B2fnEv", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 4, file: !38, scope: !8, type: !11, function: i32 (%class.A*)* @_ZN1B2fnEv)
+!10 = distinct !DISubprogram(name: "fn", linkageName: "_ZN1B2fnEv", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 4, file: !38, scope: !8, type: !11, function: i32 (%class.A*)* @_ZN1B2fnEv)
 !11 = !DISubroutineType(types: !12)
 !12 = !{!7, !13}
 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !38, scope: !3, baseType: !8)
@@ -93,7 +93,7 @@ entry:
 !20 = distinct !DILexicalBlock(line: 4, column: 12, file: !38, scope: !10)
 !21 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 5, size: 8, align: 8, file: !38, scope: !10, elements: !22)
 !22 = !{!23}
-!23 = !DISubprogram(name: "foo", linkageName: "_ZZN1B2fnEvEN1A3fooEv", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 7, file: !38, scope: !21, type: !24, function: i32 (%class.A*)* @_ZZN1B2fnEvEN1A3fooEv)
+!23 = distinct !DISubprogram(name: "foo", linkageName: "_ZZN1B2fnEvEN1A3fooEv", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 7, file: !38, scope: !21, type: !24, function: i32 (%class.A*)* @_ZZN1B2fnEvEN1A3fooEv)
 !24 = !DISubroutineType(types: !25)
 !25 = !{!7, !26}
 !26 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !38, scope: !3, baseType: !21)

diff --git a/llvm/test/DebugInfo/2010-04-19-FramePtr.ll b/llvm/test/DebugInfo/2010-04-19-FramePtr.ll
@@ -24,7 +24,7 @@ return:                                           ; preds = %entry
 !9 = !{!1}
 
 !0 = !DILocation(line: 2, scope: !1)
-!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 2, file: !10, scope: null, type: !4, function: i32 ()* @foo)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 2, file: !10, scope: null, type: !4, function: i32 ()* @foo)
 !2 = !DIFile(filename: "a.c", directory: "/tmp")
 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !10, enums: !11, retainedTypes: !11, subprograms: !9, imports:  null)
 !4 = !DISubroutineType(types: !5)

diff --git a/llvm/test/DebugInfo/2010-05-03-DisableFramePtr.ll b/llvm/test/DebugInfo/2010-05-03-DisableFramePtr.ll
@@ -19,7 +19,7 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!3}
 !llvm.module.flags = !{!19}
 !0 = !DILocalVariable(name: "userUPP", line: 7, arg: 1, scope: !1, file: !2, type: !6)
-!1 = !DISubprogram(name: "DisposeDMNotificationUPP", linkageName: "DisposeDMNotificationUPP", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !16, scope: null, type: !4)
+!1 = distinct !DISubprogram(name: "DisposeDMNotificationUPP", linkageName: "DisposeDMNotificationUPP", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !16, scope: null, type: !4)
 !2 = !DIFile(filename: "t.c", directory: "/Users/echeng/LLVM/radars/r7937664/")
 !3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", isOptimized: true, emissionKind: 0, file: !16, enums: !17, retainedTypes: !17, subprograms: !18)
 !4 = !DISubroutineType(types: !5)

diff --git a/llvm/test/DebugInfo/2010-05-03-OriginDIE.ll b/llvm/test/DebugInfo/2010-05-03-OriginDIE.ll
@@ -52,21 +52,21 @@ declare void @uuid_LtoB(i8*, i8*)
 !llvm.module.flags = !{!41}
 !0 = !DILocation(line: 808, scope: !1)
 !1 = distinct !DILexicalBlock(line: 807, column: 0, file: !39, scope: !2)
-!2 = !DISubprogram(name: "gpt2gpm", linkageName: "gpt2gpm", line: 807, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !39, scope: null, type: !5)
+!2 = distinct !DISubprogram(name: "gpt2gpm", linkageName: "gpt2gpm", line: 807, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !39, scope: null, type: !5)
 !3 = !DIFile(filename: "G.c", directory: "/tmp")
 !4 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "llvm-gcc", isOptimized: true, emissionKind: 0, file: !39, enums: !18, retainedTypes: !18, subprograms: !40)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null}
 !7 = !DILocation(line: 810, scope: !1)
 !8 = !DILocalVariable(name: "data", line: 201, arg: 1, scope: !9, file: !10, type: !11)
-!9 = !DISubprogram(name: "_OSSwapInt64", linkageName: "_OSSwapInt64", line: 202, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !10, scope: null, type: !5)
+!9 = distinct !DISubprogram(name: "_OSSwapInt64", linkageName: "_OSSwapInt64", line: 202, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !10, scope: null, type: !5)
 !10 = !DIFile(filename: "OSByteOrder.h", directory: "/usr/include/libkern/ppc")
 !11 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint64_t", line: 59, file: !36, scope: !3, baseType: !13)
 !12 = !DIFile(filename: "stdint.h", directory: "/usr/4.2.1/include")
 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "long long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
 !14 = !DILocation(line: 202, scope: !9, inlinedAt: !7)
 !15 = !DILocalVariable(name: "base", line: 92, arg: 2, scope: !16, file: !10, type: !17)
-!16 = !DISubprogram(name: "OSReadSwapInt64", linkageName: "OSReadSwapInt64", line: 95, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !38, scope: null, type: !5)
+!16 = distinct !DISubprogram(name: "OSReadSwapInt64", linkageName: "OSReadSwapInt64", line: 95, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !38, scope: null, type: !5)
 !17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, file: !39, scope: !3, baseType: null)
 !18 = !{}
 !19 = !DILocalVariable(name: "byteOffset", line: 94, arg: 3, scope: !16, file: !10, type: !20)

diff --git a/llvm/test/DebugInfo/2010-05-10-MultipleCU.ll b/llvm/test/DebugInfo/2010-05-10-MultipleCU.ll
@@ -24,15 +24,15 @@ return:
 
 !0 = !DILocation(line: 3, scope: !1)
 !1 = distinct !DILexicalBlock(line: 2, column: 0, file: !18, scope: !2)
-!2 = !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !18, scope: !3, type: !5, function: i32 ()* @foo)
+!2 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !18, scope: !3, type: !5, function: i32 ()* @foo)
 !3 = !DIFile(filename: "a.c", directory: "/tmp/")
 !4 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !18, enums: !19, retainedTypes: !19, subprograms: !16)
 !5 = !DISubroutineType(types: !6)
 !6 = !{!7}
 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !8 = !DILocation(line: 3, scope: !9)
 !9 = distinct !DILexicalBlock(line: 2, column: 0, file: !20, scope: !10)
-!10 = !DISubprogram(name: "bar", linkageName: "bar", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !20, scope: !11, type: !13, function: i32 ()* @bar)
+!10 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !20, scope: !11, type: !13, function: i32 ()* @bar)
 !11 = !DIFile(filename: "b.c", directory: "/tmp/")
 !12 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !20, enums: !19, retainedTypes: !19, subprograms: !17)
 !13 = !DISubroutineType(types: !14)

diff --git a/llvm/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll b/llvm/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
@@ -25,13 +25,13 @@ entry:
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!28}
 
-!0 = !DISubprogram(name: "foo", line: 9, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 9, file: !27, scope: !1, type: !3, variables: !24)
+!0 = distinct !DISubprogram(name: "foo", line: 9, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 9, file: !27, scope: !1, type: !3, variables: !24)
 !1 = !DIFile(filename: "bar.c", directory: "/tmp/")
 !2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !27, enums: !20, retainedTypes: !20, subprograms: !25, globals: !26, imports:  !20)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5, !5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "bar", linkageName: "bar", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !27, scope: !1, type: !7, function: i32 ()* @bar)
+!6 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !27, scope: !1, type: !7, function: i32 ()* @bar)
 !7 = !DISubroutineType(types: !8)
 !8 = !{!5}
 !9 = !DILocalVariable(name: "j", line: 9, arg: 1, scope: !0, file: !1, type: !5)

diff --git a/llvm/test/DebugInfo/2010-07-19-Crash.ll b/llvm/test/DebugInfo/2010-07-19-Crash.ll
@@ -12,13 +12,13 @@ entry:
 !llvm.dbg.sp = !{!0, !6, !11}
 !llvm.dbg.lv.foo = !{!7}
 
-!0 = !DISubprogram(name: "bar", linkageName: "bar", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !12, scope: !1, type: !3, function: i32 ()* @bar)
+!0 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !12, scope: !1, type: !3, function: i32 ()* @bar)
 !1 = !DIFile(filename: "one.c", directory: "/private/tmp")
 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 2.8", isOptimized: true, emissionKind: 0, file: !12, enums: !14, retainedTypes: !14, subprograms: !13)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !DISubprogram(name: "foo", linkageName: "foo", line: 7, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !12, scope: !1, type: !3)
+!6 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 7, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !12, scope: !1, type: !3)
 !7 = !DILocalVariable(name: "one", line: 8, scope: !8, file: !1, type: !5)
 !8 = distinct !DILexicalBlock(line: 7, column: 18, file: !12, scope: !6)
 !9 = !DILocation(line: 4, column: 3, scope: !10)

diff --git a/llvm/test/DebugInfo/2010-10-01-crash.ll b/llvm/test/DebugInfo/2010-10-01-crash.ll
@@ -13,7 +13,7 @@ declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32,
 
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!27}
-!0 = !DISubprogram(name: "CGRectStandardize", linkageName: "CGRectStandardize", line: 54, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !1, scope: null, function: void (i32*, i32*)* @CGRectStandardize)
+!0 = distinct !DISubprogram(name: "CGRectStandardize", linkageName: "CGRectStandardize", line: 54, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !1, scope: null, function: void (i32*, i32*)* @CGRectStandardize)
 !1 = !DIFile(filename: "GSFusedSilica.m", directory: "/Volumes/Data/Users/sabre/Desktop")
 !2 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "clang version 2.9 (trunk 115292)", isOptimized: true, runtimeVersion: 1, emissionKind: 0, file: !25, enums: !26, retainedTypes: !26)
 !5 = !DIDerivedType(tag: DW_TAG_typedef, name: "CGRect", line: 49, file: !25, baseType: null)

diff --git a/llvm/test/DebugInfo/AArch64/cfi-eof-prologue.ll b/llvm/test/DebugInfo/AArch64/cfi-eof-prologue.ll
@@ -89,11 +89,11 @@ attributes #3 = { nounwind }
 !25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1A")
 !26 = !DISubprogram(name: "~A", line: 3, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !"_ZTS1A", type: !23, containingType: !"_ZTS1A")
 !27 = !{!28, !32}
-!28 = !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC2Ev, declaration: !8, variables: !29)
+!28 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC2Ev, declaration: !8, variables: !29)
 !29 = !{!30}
 !30 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31)
 !31 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS1B")
-!32 = !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC1Ev, declaration: !8, variables: !33)
+!32 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC1Ev, declaration: !8, variables: !33)
 !33 = !{!34}
 !34 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !32, type: !31)
 !35 = !{i32 2, !"Dwarf Version", i32 4}

diff --git a/llvm/test/DebugInfo/AArch64/coalescing.ll b/llvm/test/DebugInfo/AArch64/coalescing.ll
@@ -48,7 +48,7 @@ attributes #3 = { nounwind optsize }
 !1 = !DIFile(filename: "<stdin>", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "start", linkageName: "_Z5startv", line: 2, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @_Z5startv, variables: !9)
+!4 = distinct !DISubprogram(name: "start", linkageName: "_Z5startv", line: 2, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @_Z5startv, variables: !9)
 !5 = !DIFile(filename: "test1.c", directory: "")
 !6 = !DIFile(filename: "test1.c", directory: "")
 !7 = !DISubroutineType(types: !8)

diff --git a/llvm/test/DebugInfo/AArch64/constant-dbgloc.ll b/llvm/test/DebugInfo/AArch64/constant-dbgloc.ll
@@ -27,7 +27,7 @@ entry:
 !1 = !DIFile(filename: "test.c", directory: "/home/user/clang/build")
 !2 = !{}
 !3 = !{!4}
-!4 = !DISubprogram(name: "main", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, function: i32 ()* @main, variables: !2)
+!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, function: i32 ()* @main, variables: !2)
 !5 = !DISubroutineType(types: !6)
 !6 = !{!7}
 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)

diff --git a/llvm/test/DebugInfo/AArch64/dwarfdump.ll b/llvm/test/DebugInfo/AArch64/dwarfdump.ll
@@ -30,7 +30,7 @@ attributes #0 = { nounwind }
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 ", isOptimized: false, emissionKind: 0, file: !9, enums: !1, retainedTypes: !1, subprograms: !2, globals: !1, imports:  !1)
 !1 = !{}
 !2 = !{!3}
-!3 = !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !9, scope: !4, type: !5, function: i32 ()* @main, variables: !1)
+!3 = distinct !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !9, scope: !4, type: !5, function: i32 ()* @main, variables: !1)
 !4 = !DIFile(filename: "tmp.c", directory: "/home/tim/llvm/build")
 !5 = !DISubroutineType(types: !6)
 !6 = !{!7}

diff --git a/llvm/test/DebugInfo/AArch64/frameindices.ll b/llvm/test/DebugInfo/AArch64/frameindices.ll
@@ -185,16 +185,16 @@ attributes #5 = { builtin }
 !22 = !DISubroutineType(types: !23)
 !23 = !{null, !19}
 !24 = !{!25, !31, !34}
-!25 = !DISubprogram(name: "f13", linkageName: "_Z3f131A", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !26, type: !27, function: void (%struct.A*)* @_Z3f131A, variables: !29)
+!25 = distinct !DISubprogram(name: "f13", linkageName: "_Z3f131A", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !26, type: !27, function: void (%struct.A*)* @_Z3f131A, variables: !29)
 !26 = !DIFile(filename: "test.cpp", directory: "")
 !27 = !DISubroutineType(types: !28)
 !28 = !{null, !"_ZTS1A"}
 !29 = !{!30}
 !30 = !DILocalVariable(name: "p1", line: 13, arg: 1, scope: !25, file: !26, type: !"_ZTS1A")
-!31 = !DISubprogram(name: "f11", linkageName: "_Z3f111A", line: 17, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 17, file: !5, scope: !26, type: !27, function: void (%struct.A*)* @_Z3f111A, variables: !32)
+!31 = distinct !DISubprogram(name: "f11", linkageName: "_Z3f111A", line: 17, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 17, file: !5, scope: !26, type: !27, function: void (%struct.A*)* @_Z3f111A, variables: !32)
 !32 = !{!33}
 !33 = !DILocalVariable(name: "p1", line: 17, arg: 1, scope: !31, file: !26, type: !"_ZTS1A")
-!34 = !DISubprogram(name: "f16", linkageName: "_Z3f16v", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !5, scope: !26, type: !35, function: void ()* @_Z3f16v, variables: !37)
+!34 = distinct !DISubprogram(name: "f16", linkageName: "_Z3f16v", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 18, file: !5, scope: !26, type: !35, function: void ()* @_Z3f16v, variables: !37)
 !35 = !DISubroutineType(types: !36)
 !36 = !{null}
 !37 = !{!38, !39}