[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.

Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
author: Adrian Prantl <aprantl@apple.com> 2016-04-15 15:57:41 +0000
committer: Adrian Prantl <aprantl@apple.com> 2016-04-15 15:57:41 +0000
commit: 75819aedf6d774a424e35793b266442708e57050 (patch)
tree: e4eabf3bd19e9dee6ed3aefc8f4e2cb16d6bb285 /llvm/test/CodeGen
parent: e76bda544bbf52d9ff3b55e6018b494a1e6bbc00 (diff)
download: bcm5719-llvm-75819aedf6d774a424e35793b266442708e57050.tar.gz
bcm5719-llvm-75819aedf6d774a424e35793b266442708e57050.zip
75 files changed, 223 insertions, 285 deletions
diff --git a/llvm/test/CodeGen/AArch64/aarch64-2014-08-11-MachineCombinerCrash.ll b/llvm/test/CodeGen/AArch64/aarch64-2014-08-11-MachineCombinerCrash.ll
index 8dee27c6ebb..d12c4c6f9fa 100644
--- a/llvm/test/CodeGen/AArch64/aarch64-2014-08-11-MachineCombinerCrash.ll
+++ b/llvm/test/CodeGen/AArch64/aarch64-2014-08-11-MachineCombinerCrash.ll
@@ -44,11 +44,10 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!36, !37}
 !llvm.ident = !{!38}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "test.c", directory: "")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "", line: 140, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 141, file: !1, scope: !1, type: !6, variables: !12)
+!4 = distinct !DISubprogram(name: "", line: 140, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 141, file: !1, scope: !1, type: !6, variables: !12)
 !6 = !DISubroutineType(types: !7)
 !7 = !{null, !8}
 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
diff --git a/llvm/test/CodeGen/AArch64/arm64-2011-03-17-AsmPrinterCrash.ll b/llvm/test/CodeGen/AArch64/arm64-2011-03-17-AsmPrinterCrash.ll
index 5e12f8e4186..caafde0a1bb 100644
--- a/llvm/test/CodeGen/AArch64/arm64-2011-03-17-AsmPrinterCrash.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-2011-03-17-AsmPrinterCrash.ll
@@ -21,18 +21,18 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 
 !0 = !DIGlobalVariable(name: "vsplive", line: 617, isLocal: true, isDefinition: true, scope: !1, file: !2, type: !6)
-!1 = distinct !DISubprogram(name: "drt_vsprintf", line: 616, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !20, scope: !2, type: !4)
+!1 = distinct !DISubprogram(name: "drt_vsprintf", line: 616, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, file: !20, scope: !2, type: !4)
 !2 = !DIFile(filename: "print.i", directory: "/Volumes/Ebi/echeng/radars/r9146594")
-!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (http://llvm.org/git/clang.git git:/git/puzzlebox/clang.git/ c4d1aea01c4444eb81bdbf391f1be309127c3cf1)", isOptimized: true, emissionKind: FullDebug, file: !20, subprograms: !22, enums: !21, retainedTypes: !21, globals: !{!0})
+!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (http://llvm.org/git/clang.git git:/git/puzzlebox/clang.git/ c4d1aea01c4444eb81bdbf391f1be309127c3cf1)", isOptimized: true, emissionKind: FullDebug, file: !20, enums: !21, retainedTypes: !21, globals: !{!0})
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6}
 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!7 = distinct !DISubprogram(name: "putc_mem", line: 30, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !20, scope: !2, type: !8)
+!7 = distinct !DISubprogram(name: "putc_mem", line: 30, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, file: !20, scope: !2, type: !8)
 !8 = !DISubroutineType(types: !9)
 !9 = !{null}
-!10 = distinct !DISubprogram(name: "print_double", line: 203, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !20, scope: !2, type: !4)
-!11 = distinct !DISubprogram(name: "print_number", line: 75, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !20, scope: !2, type: !4)
-!12 = distinct !DISubprogram(name: "get_flags", line: 508, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !20, scope: !2, type: !8)
+!10 = distinct !DISubprogram(name: "print_double", line: 203, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, file: !20, scope: !2, type: !4)
+!11 = distinct !DISubprogram(name: "print_number", line: 75, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, file: !20, scope: !2, type: !4)
+!12 = distinct !DISubprogram(name: "get_flags", line: 508, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, file: !20, scope: !2, type: !8)
 !13 = !DILocation(line: 653, column: 5, scope: !14)
 !14 = distinct !DILexicalBlock(line: 652, column: 35, file: !20, scope: !15)
 !15 = distinct !DILexicalBlock(line: 616, column: 1, file: !20, scope: !1)
@@ -42,4 +42,3 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !19 = !DILocation(line: 853, column: 29, scope: !17)
 !20 = !DIFile(filename: "print.i", directory: "/Volumes/Ebi/echeng/radars/r9146594")
 !21 = !{i32 0}
-!22 = !{!1, !7, !10, !11, !12}
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.dbg.value.ll b/llvm/test/CodeGen/AMDGPU/llvm.dbg.value.ll
index 284069320e3..dde5393be8a 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.dbg.value.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.dbg.value.ll
@@ -20,11 +20,10 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!11, !12}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 244715) (llvm/trunk 244718)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 244715) (llvm/trunk 244718)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "/tmp/test_debug_value.cl", directory: "/Users/matt/src/llvm/build_debug")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "test_debug_value", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, variables: !9)
+!4 = distinct !DISubprogram(name: "test_debug_value", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !9)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null, !7}
 !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64, align: 32)
diff --git a/llvm/test/CodeGen/ARM/2009-10-16-Scope.ll b/llvm/test/CodeGen/ARM/2009-10-16-Scope.ll
index 835862d8933..3e687322de4 100644
--- a/llvm/test/CodeGen/ARM/2009-10-16-Scope.ll
+++ b/llvm/test/CodeGen/ARM/2009-10-16-Scope.ll
@@ -25,7 +25,7 @@ declare i32 @foo(i32) ssp
 !llvm.dbg.cu = !{!0}
 !0 = !DILocation(line: 5, column: 2, scope: !1)
 !1 = distinct !DILexicalBlock(line: 1, column: 1, file: null, scope: !2)
-!2 = distinct !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, unit: !3, scope: !3)
 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 1.1", isOptimized: true, emissionKind: FullDebug, 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/ARM/2010-04-15-ScavengerDebugValue.ll b/llvm/test/CodeGen/ARM/2010-04-15-ScavengerDebugValue.ll
index 4bb2ad558b2..089cff82bc5 100644
--- a/llvm/test/CodeGen/ARM/2010-04-15-ScavengerDebugValue.ll
+++ b/llvm/test/CodeGen/ARM/2010-04-15-ScavengerDebugValue.ll
@@ -15,10 +15,10 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!3}
 !llvm.module.flags = !{!15}
 !0 = !DILocalVariable(name: "b", line: 93, arg: 2, scope: !1, file: !2, type: !6)
-!1 = distinct !DISubprogram(name: "__addvsi3", linkageName: "__addvsi3", line: 94, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: null, type: !4)
+!1 = distinct !DISubprogram(name: "__addvsi3", linkageName: "__addvsi3", line: 94, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !12, scope: null, type: !4)
 !2 = !DIFile(filename: "libgcc2.c", directory: "/Users/bwilson/local/nightly/test-2010-04-14/build/llvmgcc.roots/llvmgcc~obj/src/gcc")
 !12 = !DIFile(filename: "libgcc2.c", directory: "/Users/bwilson/local/nightly/test-2010-04-14/build/llvmgcc.roots/llvmgcc~obj/src/gcc")
-!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 00)", isOptimized: true, emissionKind: FullDebug, file: !12, enums: !13, retainedTypes: !13, subprograms: !14)
+!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 00)", isOptimized: true, emissionKind: FullDebug, file: !12, enums: !13, retainedTypes: !13)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6, !6, !6}
 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "SItype", line: 152, file: !12, baseType: !8)
@@ -28,5 +28,4 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !10 = distinct !DILexicalBlock(line: 94, column: 0, file: !12, scope: !1)
 !11 = !DILocation(line: 100, scope: !10)
 !13 = !{}
-!14 = !{!1}
 !15 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/ARM/2010-06-25-Thumb2ITInvalidIterator.ll b/llvm/test/CodeGen/ARM/2010-06-25-Thumb2ITInvalidIterator.ll
index 2bea37c5486..5ae1b6626f1 100644
--- a/llvm/test/CodeGen/ARM/2010-06-25-Thumb2ITInvalidIterator.ll
+++ b/llvm/test/CodeGen/ARM/2010-06-25-Thumb2ITInvalidIterator.ll
@@ -47,9 +47,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!3}
 
 !0 = !DILocalVariable(name: "buf", line: 4, arg: 1, scope: !1, file: !2, type: !6)
-!1 = distinct !DISubprogram(name: "x0", linkageName: "x0", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !26, scope: null, type: !4)
+!1 = distinct !DISubprogram(name: "x0", linkageName: "x0", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !26, scope: null, type: !4)
 !2 = !DIFile(filename: "t.c", directory: "/private/tmp")
-!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 2.0", isOptimized: true, file: !26, subprograms: !{!0, !8, !10, !12}, globals: !{!14})
+!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 2.0", isOptimized: true, file: !26, globals: !{!14})
 !4 = !DISubroutineType(types: !5)
 !5 = !{null}
 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, file: !26, scope: !2, baseType: !7)
diff --git a/llvm/test/CodeGen/ARM/2010-08-04-StackVariable.ll b/llvm/test/CodeGen/ARM/2010-08-04-StackVariable.ll
index d0cd001f6b6..a90ea137cb7 100644
--- a/llvm/test/CodeGen/ARM/2010-08-04-StackVariable.ll
+++ b/llvm/test/CodeGen/ARM/2010-08-04-StackVariable.ll
@@ -83,7 +83,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = !DISubprogram(name: "SVal", line: 11, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, file: !48, scope: !1, type: !14)
 !1 = !DICompositeType(tag: DW_TAG_structure_type, name: "SVal", line: 1, size: 64, align: 64, file: !48, elements: !4)
 !2 = !DIFile(filename: "small.cc", directory: "/Users/manav/R8248330")
-!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !48, enums: !47, retainedTypes: !47, subprograms: !46, globals: !47, imports:  !47)
+!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !48, enums: !47, retainedTypes: !47, globals: !47, imports:  !47)
 !4 = !{!5, !7, !0, !9}
 !5 = !DIDerivedType(tag: DW_TAG_member, name: "Data", line: 7, size: 64, align: 64, file: !48, scope: !1, baseType: !6)
 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !48, baseType: null)
@@ -96,11 +96,11 @@ 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 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !48, scope: !1, type: !14)
-!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !48, scope: !2, type: !18)
+!16 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !48, scope: !1, type: !14)
+!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !48, scope: !2, type: !18)
 !18 = !DISubroutineType(types: !19)
 !19 = !{!13, !13, !1}
-!20 = distinct !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !48, scope: !2, type: !21)
+!20 = distinct !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !48, scope: !2, type: !21)
 !21 = !DISubroutineType(types: !22)
 !22 = !{!13}
 !23 = !DILocalVariable(name: "i", line: 16, arg: 1, scope: !17, file: !2, type: !13)
@@ -126,7 +126,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !43 = !DILocation(line: 26, scope: !39)
 !44 = !DILocalVariable(name: "k", line: 26, scope: !39, file: !2, type: !13)
 !45 = !DILocation(line: 27, scope: !39)
-!46 = !{!16, !17, !20}
 !47 = !{}
 !48 = !DIFile(filename: "small.cc", directory: "/Users/manav/R8248330")
 !49 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll b/llvm/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
index 0221f810a62..8c6cf00cc3a 100644
--- 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 = 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, variables: !42)
+!0 = distinct !DISubprogram(name: "get1", linkageName: "get1", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 4, file: !47, scope: !1, type: !3, 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: FullDebug, file: !47, enums: !48, retainedTypes: !48, subprograms: !40, globals: !41, imports:  !48)
+!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", isOptimized: true, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, 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 = 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, 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, 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, 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, variables: !46)
+!6 = distinct !DISubprogram(name: "get2", linkageName: "get2", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 7, file: !47, scope: !1, type: !3, variables: !43)
+!7 = distinct !DISubprogram(name: "get3", linkageName: "get3", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 10, file: !47, scope: !1, type: !3, variables: !44)
+!8 = distinct !DISubprogram(name: "get4", linkageName: "get4", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 13, file: !47, scope: !1, type: !3, variables: !45)
+!9 = distinct !DISubprogram(name: "get5", linkageName: "get5", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 16, file: !47, scope: !1, type: !3, 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)
@@ -118,7 +118,6 @@ entry:
 !37 = !DILocation(line: 13, scope: !26)
 !38 = !DILocation(line: 16, scope: !9)
 !39 = !DILocation(line: 16, scope: !29)
-!40 = !{!0, !6, !7, !8, !9}
 !41 = !{!13, !14, !15, !16, !17}
 !42 = !{!10, !11}
 !43 = !{!18, !19}
diff --git a/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll b/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
index 9dd65232955..4da4fd4c926 100644
--- a/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
+++ b/llvm/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
@@ -73,16 +73,16 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!49}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, subprograms: !40, globals: !41, imports:  !48)
-!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, variables: !42)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, globals: !41, imports:  !48)
+!1 = distinct !DISubprogram(name: "get1", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !47, scope: !2, type: !3, 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 = distinct !DISubprogram(name: "get2", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !47, scope: !2, type: !3, 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, 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, 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, variables: !46)
+!6 = distinct !DISubprogram(name: "get2", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 8, file: !47, scope: !2, type: !3, variables: !43)
+!7 = distinct !DISubprogram(name: "get3", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 11, file: !47, scope: !2, type: !3, variables: !44)
+!8 = distinct !DISubprogram(name: "get4", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 14, file: !47, scope: !2, type: !3, variables: !45)
+!9 = distinct !DISubprogram(name: "get5", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 17, file: !47, scope: !2, type: !3, 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)
@@ -110,7 +110,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !37 = !DILocation(line: 14, column: 32, scope: !21)
 !38 = !DILocation(line: 17, column: 16, scope: !9)
 !39 = !DILocation(line: 17, column: 32, scope: !29)
-!40 = !{!1, !6, !7, !8, !9}
 !41 = !{!25, !26}
 !42 = !{!10, !11}
 !43 = !{!13, !14}
diff --git a/llvm/test/CodeGen/ARM/arm-shrink-wrapping.ll b/llvm/test/CodeGen/ARM/arm-shrink-wrapping.ll
index 2d8fa7c633c..bee4238ce6a 100644
--- a/llvm/test/CodeGen/ARM/arm-shrink-wrapping.ll
+++ b/llvm/test/CodeGen/ARM/arm-shrink-wrapping.ll
@@ -677,7 +677,7 @@ bb13:                                             ; preds = %bb3, %bb
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!3}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "LLVM", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !2, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "LLVM", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "a.cpp", directory: "b")
 !2 = !{}
 !3 = !{i32 2, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll b/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll
index dc4cc512e9d..cd45af338fd 100644
--- a/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll
+++ b/llvm/test/CodeGen/ARM/coalesce-dbgvalue.ll
@@ -79,11 +79,10 @@ attributes #3 = { nounwind }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!33}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 182024) (llvm/trunk 182023)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !15, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 182024) (llvm/trunk 182023)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !15, imports: !2)
 !1 = !DIFile(filename: "pr16110.c", directory: "/d/b")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "pr16110", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !9)
+!4 = distinct !DISubprogram(name: "pr16110", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !6, 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
index 7cabd83a246..b9eae59cc32 100644
--- a/llvm/test/CodeGen/ARM/debug-frame-vararg.ll
+++ b/llvm/test/CodeGen/ARM/debug-frame-vararg.ll
@@ -25,11 +25,10 @@
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "var.c", directory: "/tmp")
 !2 = !{}
-!3 = !{!4}
-!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, variables: !2)
+!4 = distinct !DISubprogram(name: "sum", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, 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
index 15cad7fc1d5..9b54a4a463d 100644
--- a/llvm/test/CodeGen/ARM/debug-frame.ll
+++ b/llvm/test/CodeGen/ARM/debug-frame.ll
@@ -125,11 +125,10 @@ declare void @_ZSt9terminatev()
 !llvm.module.flags = !{!10, !11}
 !llvm.ident = !{!12}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "exp.cpp", directory: "/tmp")
 !2 = !{}
-!3 = !{!4}
-!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, variables: !2)
+!4 = distinct !DISubprogram(name: "test", linkageName: "_Z4testiiiiiddddd", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, 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
index 6fe0df2804f..9dd820134dd 100644
--- a/llvm/test/CodeGen/ARM/debug-info-arg.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-arg.ll
@@ -32,8 +32,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !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: FullDebug, file: !32, enums: !{}, retainedTypes: !{}, subprograms: !30, imports:  null)
-!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, variables: !31)
+!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: FullDebug, file: !32, enums: !{}, retainedTypes: !{}, imports:  null)
+!1 = distinct !DISubprogram(name: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 11, file: !2, scope: !2, type: !3, variables: !31)
 !2 = !DIFile(filename: "one.c", directory: "/Volumes/Athwagate/R10048772")
 !3 = !DISubroutineType(types: !4)
 !4 = !{null}
@@ -62,7 +62,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !27 = distinct !DILexicalBlock(line: 11, column: 107, file: !2, scope: !1)
 !28 = !DILocation(line: 13, column: 5, scope: !27)
 !29 = !DILocation(line: 14, column: 1, scope: !27)
-!30 = !{!1}
 !31 = !{!5, !13, !14, !17, !18, !19}
 !32 = !DIFile(filename: "one.c", directory: "/Volumes/Athwagate/R10048772")
 !33 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/ARM/debug-info-blocks.ll b/llvm/test/CodeGen/ARM/debug-info-blocks.ll
index 343e56a8476..1e9d890e933 100644
--- a/llvm/test/CodeGen/ARM/debug-info-blocks.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-blocks.ll
@@ -111,7 +111,7 @@ define hidden void @foobar_func_block_invoke_0(i8* %.block_descriptor, %0* %load
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!162}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "Apple clang version 2.1", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !153, enums: !147, retainedTypes: !{}, subprograms: !148)
+!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "Apple clang version 2.1", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !153, enums: !147, retainedTypes: !{})
 !1 = !DICompositeType(tag: DW_TAG_enumeration_type, line: 248, size: 32, align: 32, file: !160, scope: !0, elements: !3)
 !2 = !DIFile(filename: "header.h", directory: "/Volumes/Sandbox/llvm")
 !3 = !{!4}
@@ -134,7 +134,7 @@ 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 = 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)
+!23 = distinct !DISubprogram(name: "foobar_func_block_invoke_0", line: 609, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 609, file: !152, scope: !24, type: !25)
 !24 = !DIFile(filename: "MyLibrary.m", directory: "/Volumes/Sandbox/llvm")
 !25 = !DISubroutineType(types: !26)
 !26 = !{null}
@@ -259,7 +259,6 @@ define hidden void @foobar_func_block_invoke_0(i8* %.block_descriptor, %0* %load
 !145 = !DILocation(line: 613, column: 17, scope: !142)
 !146 = !DILocation(line: 615, column: 13, scope: !142)
 !147 = !{!1, !1, !5, !5, !9, !14, !19, !19, !14, !14, !14, !19, !19, !19}
-!148 = !{!23}
 !149 = !DIFile(filename: "header3.h", directory: "/Volumes/Sandbox/llvm")
 !150 = !DIFile(filename: "Private.h", directory: "/Volumes/Sandbox/llvm")
 !151 = !DIFile(filename: "header4.h", directory: "/Volumes/Sandbox/llvm")
diff --git a/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll b/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
index 518f9eb8ea5..b4e48c4c423 100644
--- a/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
@@ -42,9 +42,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.module.flags = !{!56}
 !llvm.dbg.cu = !{!2}
 
-!0 = distinct !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !3, variables: !51)
+!0 = distinct !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, file: !54, scope: null, type: !3, 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: FullDebug, file: !54, enums: !{}, retainedTypes: !{}, subprograms: !50, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: FullDebug, file: !54, enums: !{}, retainedTypes: !{}, imports:  null)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIDerivedType(tag: DW_TAG_typedef, name: "v4f32", line: 14, file: !54, scope: !2, baseType: !6)
@@ -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 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !54, scope: null, type: !11, variables: !52)
+!10 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, file: !54, scope: null, type: !11, 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 = distinct !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, unit: !2, 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}
@@ -92,7 +92,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !47 = distinct !DILexicalBlock(line: 41, column: 28, file: !15, scope: !14)
 !48 = !DILocation(line: 95, column: 3, scope: !25)
 !49 = !DILocation(line: 99, column: 3, scope: !25)
-!50 = !{!0, !10, !14}
 !51 = !{!18}
 !52 = !{!19, !20, !24, !26, !27, !28, !29}
 !53 = !{!30}
diff --git a/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll b/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll
index f0892be8d31..46146c7b8bf 100644
--- a/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll
@@ -59,17 +59,17 @@ declare i32 @puts(i8* nocapture) nounwind
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!48}
 
-!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, variables: !43)
+!0 = distinct !DISubprogram(name: "printer", linkageName: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 12, file: !46, scope: !1, type: !3, variables: !43)
 !1 = !DIFile(filename: "a.c", directory: "/tmp/")
-!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "(LLVM build 00)", isOptimized: true, emissionKind: FullDebug, file: !46, enums: !47, retainedTypes: !47, subprograms: !42, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "(LLVM build 00)", isOptimized: true, emissionKind: FullDebug, file: !46, enums: !47, retainedTypes: !47, imports:  null)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5, !6, !7, !8}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !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 = 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, 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, variables: !45)
+!9 = distinct !DISubprogram(name: "inlineprinter", linkageName: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 5, file: !46, scope: !1, type: !3, variables: !44)
+!10 = distinct !DISubprogram(name: "main", linkageName: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 18, file: !46, scope: !1, type: !11, 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)
@@ -106,7 +106,6 @@ declare i32 @puts(i8* nocapture) nounwind
 !39 = !DILocation(line: 6, scope: !28, inlinedAt: !37)
 !40 = !DILocation(line: 22, scope: !25)
 !41 = !DILocation(line: 23, scope: !25)
-!42 = !{!0, !9, !10}
 !43 = !{!16, !17, !18}
 !44 = !{!19, !20, !21}
 !45 = !{!22, !23, !24}
diff --git a/llvm/test/CodeGen/ARM/debug-info-no-frame.ll b/llvm/test/CodeGen/ARM/debug-info-no-frame.ll
index afaeee9d2c5..861c4ecefa9 100644
--- a/llvm/test/CodeGen/ARM/debug-info-no-frame.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-no-frame.ll
@@ -21,10 +21,10 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!7, !8}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, subprograms: !{!3}, emissionKind: FullDebug)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, emissionKind: FullDebug)
 !1 = !DIFile(filename: "file.c", directory: "/dir")
 !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, 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, unit: !0, 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
index fba74816035..581b3e915ef 100644
--- a/llvm/test/CodeGen/ARM/debug-info-qreg.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-qreg.ll
@@ -38,9 +38,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!56}
 
-!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, variables: !51)
+!0 = distinct !DISubprogram(name: "test0001", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 3, file: !54, scope: !1, type: !3, 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: FullDebug, file: !54, enums: !{}, retainedTypes: !{}, subprograms: !50, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: FullDebug, file: !54, enums: !{}, retainedTypes: !{}, imports:  null)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIDerivedType(tag: DW_TAG_typedef, name: "v4f32", line: 14, file: !54, scope: !2, baseType: !6)
@@ -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 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 59, file: !54, scope: !1, type: !11, variables: !52)
+!10 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 59, file: !54, scope: !1, type: !11, 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 = 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)
+!14 = distinct !DISubprogram(name: "printFV", line: 41, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, 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}
@@ -88,7 +88,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !47 = distinct !DILexicalBlock(line: 41, column: 28, file: !55, scope: !14)
 !48 = !DILocation(line: 95, column: 3, scope: !25)
 !49 = !DILocation(line: 99, column: 3, scope: !25)
-!50 = !{!0, !10, !14}
 !51 = !{!18}
 !52 = !{!19, !20, !24, !26, !27, !28, !29}
 !53 = !{!30}
diff --git a/llvm/test/CodeGen/ARM/debug-info-s16-reg.ll b/llvm/test/CodeGen/ARM/debug-info-s16-reg.ll
index 64944ac0d49..2987b9a2105 100644
--- 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 = distinct !DISubprogram(name: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !51, scope: !1, type: !3, variables: !48)
+!0 = distinct !DISubprogram(name: "inlineprinter", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 5, file: !51, scope: !1, type: !3, 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: FullDebug, file: !51, enums: !52, retainedTypes: !52, subprograms: !47, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 129915)", isOptimized: true, emissionKind: FullDebug, file: !51, enums: !52, retainedTypes: !52, 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 = distinct !DISubprogram(name: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !51, scope: !1, type: !3, 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, variables: !50)
+!6 = distinct !DISubprogram(name: "printer", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 12, file: !51, scope: !1, type: !3, variables: !49)
+!7 = distinct !DISubprogram(name: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 18, file: !51, scope: !1, type: !3, 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)
@@ -117,7 +117,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !44 = !DILocation(line: 6, column: 3, scope: !28, inlinedAt: !40)
 !45 = !DILocation(line: 22, column: 3, scope: !23)
 !46 = !DILocation(line: 23, column: 1, scope: !23)
-!47 = !{!0, !6, !7}
 !48 = !{!8, !10, !12}
 !49 = !{!14, !15, !16}
 !50 = !{!17, !18, !22}
diff --git a/llvm/test/CodeGen/ARM/debug-info-sreg2.ll b/llvm/test/CodeGen/ARM/debug-info-sreg2.ll
index 4f5878670fc..b31d1b7bed4 100644
--- a/llvm/test/CodeGen/ARM/debug-info-sreg2.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-sreg2.ll
@@ -43,8 +43,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!20}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130845)", isOptimized: true, emissionKind: FullDebug, file: !18, enums: !19, retainedTypes: !19, subprograms: !16, imports:  null)
-!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, variables: !17)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130845)", isOptimized: true, emissionKind: FullDebug, file: !18, enums: !19, retainedTypes: !19, imports:  null)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !18, scope: !2, type: !3, variables: !17)
 !2 = !DIFile(filename: "k.cc", directory: "/private/tmp")
 !3 = !DISubroutineType(types: !4)
 !4 = !{null}
@@ -59,7 +59,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !13 = !DILocation(line: 8, column: 20, scope: !9)
 !14 = !DILocation(line: 7, column: 20, scope: !10)
 !15 = !DILocation(line: 10, column: 1, scope: !6)
-!16 = !{!1}
 !17 = !{!5, !8}
 !18 = !DIFile(filename: "k.cc", directory: "/private/tmp")
 !19 = !{}
diff --git a/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll b/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
index a3d107fd7cb..3aa33f75411 100644
--- a/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
+++ b/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
@@ -39,11 +39,10 @@ define void @test_basic() #0 !dbg !4 {
 ; ARM-linux       .cfi_same_value r5
 }
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "var.c", directory: "/tmp")
 !2 = !{}
-!3 = !{!4}
-!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, variables: !2)
+!4 = distinct !DISubprogram(name: "test_basic", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, variables: !2)
 !5 = !DIFile(filename: "var.c", directory: "/tmp")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8}
diff --git a/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll b/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll
index 253f5f6911d..2ab85053a91 100644
--- a/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll
+++ b/llvm/test/CodeGen/ARM/vfp-regs-dwarf.ll
@@ -31,11 +31,10 @@ define void @stack_offsets() !dbg !4 {
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!8, !9}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "tmp.c", directory: "/Users/tim/llvm/build")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "bar", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
+!4 = distinct !DISubprogram(name: "bar", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
 !5 = !DIFile(filename: "tmp.c", directory: "/Users/tim/llvm/build")
 !6 = !DISubroutineType(types: !7)
 !7 = !{null}
diff --git a/llvm/test/CodeGen/Hexagon/cfi-late.ll b/llvm/test/CodeGen/Hexagon/cfi-late.ll
index 4480a4d15ac..d24732929ad 100644
--- a/llvm/test/CodeGen/Hexagon/cfi-late.ll
+++ b/llvm/test/CodeGen/Hexagon/cfi-late.ll
@@ -41,11 +41,10 @@ attributes #3 = { nounwind }
 !llvm.module.flags = !{!11, !12}
 !llvm.ident = !{!13}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (http://llvm.org/git/clang.git 15506a21305e212c406f980ed9b6b1bac785df56)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (http://llvm.org/git/clang.git 15506a21305e212c406f980ed9b6b1bac785df56)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "cfi-late.c", directory: "/test")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, variables: !8)
+!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
 !5 = !DISubroutineType(types: !6)
 !6 = !{!7, !7, !7}
 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
diff --git a/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll b/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll
index 95d6f7f81c4..1e305e30f62 100644
--- a/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll
+++ b/llvm/test/CodeGen/Hexagon/hwloop-dbg.ll
@@ -37,10 +37,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!29}
 
-!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: FullDebug, file: !28, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2)
+!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: FullDebug, file: !28, enums: !2, retainedTypes: !2, globals: !2)
 !2 = !{}
-!3 = !{!5}
-!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, variables: !11)
+!5 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !28, scope: null, type: !7, 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
index 29210f475fa..ce015c0727c 100644
--- a/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
+++ b/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
@@ -14,9 +14,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!13}
 
-!0 = distinct !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: !1, type: !3)
+!0 = distinct !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2, file: !12, scope: !1, type: !3)
 !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: FullDebug, file: !12, enums: !6, retainedTypes: !6, subprograms: !11)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 120996)", isOptimized: false, emissionKind: FullDebug, file: !12, enums: !6, retainedTypes: !6)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
@@ -25,6 +25,5 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !8 = distinct !DILexicalBlock(line: 2, column: 12, file: !12, scope: !0)
 !9 = !DILocation(line: 3, column: 11, scope: !8)
 !10 = !DILocation(line: 4, column: 2, scope: !8)
-!11 = !{!0}
 !12 = !DIFile(filename: "/tmp/x.c", directory: "/Users/manav")
 !13 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/MIR/ARM/ARMLoadStoreDBG.mir b/llvm/test/CodeGen/MIR/ARM/ARMLoadStoreDBG.mir
index 6ec36593cad..efebdf7ce57 100644
--- a/llvm/test/CodeGen/MIR/ARM/ARMLoadStoreDBG.mir
+++ b/llvm/test/CodeGen/MIR/ARM/ARMLoadStoreDBG.mir
@@ -39,11 +39,10 @@
   !llvm.module.flags = !{!22, !23, !24, !25}
   !llvm.ident = !{!26}
   
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0  (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0  (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, variables: !17)
+  !4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !17)
   !5 = !DISubroutineType(types: !6)
   !6 = !{!7, !8, !11, !12, !16}
   !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
diff --git a/llvm/test/CodeGen/MIR/ARM/sched-it-debug-nodes.mir b/llvm/test/CodeGen/MIR/ARM/sched-it-debug-nodes.mir
index ade7ada2098..44d370908e9 100644
--- a/llvm/test/CodeGen/MIR/ARM/sched-it-debug-nodes.mir
+++ b/llvm/test/CodeGen/MIR/ARM/sched-it-debug-nodes.mir
@@ -50,11 +50,10 @@
   !llvm.module.flags = !{!22, !23, !24, !25}
   !llvm.ident = !{!26}
   
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0  (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0  (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, variables: !17)
+  !4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !17)
   !5 = !DISubroutineType(types: !6)
   !6 = !{!7, !8, !11, !12, !16}
   !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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
index 22910240e20..9041683525c 100644
--- 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
@@ -20,11 +20,10 @@
   !llvm.module.flags = !{!9, !10}
   !llvm.ident = !{!11}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, 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, unit: !0, 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
index bca2e5f3be8..6b4c51b394d 100644
--- a/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-exclaim.mir
+++ b/llvm/test/CodeGen/MIR/X86/expected-metadata-node-after-exclaim.mir
@@ -20,11 +20,10 @@
   !llvm.module.flags = !{!9, !10}
   !llvm.ident = !{!11}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, 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, unit: !0, 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
index 7816cb60401..53f11ec37ff 100644
--- a/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
+++ b/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
@@ -31,11 +31,10 @@
   !llvm.module.flags = !{!9, !10}
   !llvm.ident = !{!11}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, 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, unit: !0, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}
@@ -62,9 +61,9 @@ stack:
 body: |
   bb.0.entry:
     liveins: %edi
-    ; CHECK: DBG_VALUE debug-use _, 0, !12, !13, debug-location !14
-    ; CHECK: %eax = COPY %0, debug-location !15
-    ; CHECK: RETQ %eax, debug-location !15
+    ; CHECK: DBG_VALUE debug-use _, 0, !11, !12, debug-location !13
+    ; CHECK: %eax = COPY %0, debug-location !14
+    ; CHECK: RETQ %eax, debug-location !14
     %0 = COPY %edi
     DBG_VALUE debug-use _, 0, !12, !13, debug-location !14
     MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
@@ -86,9 +85,9 @@ body: |
     liveins: %edi
 
     %0 = COPY %edi
-  ; CHECK:      DBG_VALUE _, i32 0, !12, !13
-  ; CHECK-NEXT: DBG_VALUE _, i64 -22, !12, !13
-  ; CHECK-NEXT: DBG_VALUE _, i128 123492148938512984928424384934328985928, !12, !13
+  ; CHECK:      DBG_VALUE _, i32 0, !11, !12
+  ; CHECK-NEXT: DBG_VALUE _, i64 -22, !11, !12
+  ; CHECK-NEXT: DBG_VALUE _, i128 123492148938512984928424384934328985928, !11, !12
     DBG_VALUE _, i32 0, !12, !13
     DBG_VALUE _, i64 -22, !12, !13
     DBG_VALUE _, i128 123492148938512984928424384934328985928, !12, !13
diff --git a/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir b/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir
index 160909619f4..a5d9ce29448 100644
--- a/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir
+++ b/llvm/test/CodeGen/MIR/X86/invalid-metadata-node-type.mir
@@ -22,12 +22,12 @@
   !llvm.dbg.cu = !{!0}
   !llvm.module.flags = !{!3}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !{!5})
+  !0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2)
   !1 = !DIFile(filename: "t.c", directory: "")
   !2 = !{}
   !3 = !{i32 1, !"Debug Info Version", i32 3}
   !4 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 16, type: !6)
-  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
+  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !0)
   !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
index acf76f58732..0ee25dd830a 100644
--- a/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
@@ -22,11 +22,10 @@
   !llvm.module.flags = !{!9, !10}
   !llvm.ident = !{!11}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, 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, unit: !0, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}
@@ -54,7 +53,7 @@ body: |
   bb.0.entry:
     liveins: %edi
     ; CHECK:      %0 = COPY %edi
-    ; CHECK-NEXT: DBG_VALUE _, 0, !12, !13
+    ; CHECK-NEXT: DBG_VALUE _, 0, !11, !12
     %0 = COPY %edi
     DBG_VALUE _, 0, !12, ! 13
     MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
diff --git a/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir b/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
index d30ee39a7e7..54f4e822b5f 100644
--- a/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
+++ b/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
@@ -31,13 +31,12 @@
   !llvm.dbg.cu = !{!0}
   !llvm.module.flags = !{!3}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2,
-                               subprograms: !{!5})
+  !0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2)
   !1 = !DIFile(filename: "t.c", directory: "")
   !2 = !{}
   !3 = !{i32 1, !"Debug Info Version", i32 3}
   !4 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 16, type: !9)
-  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
+  !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !0)
   !6 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
   !7 = !DIExpression()
   !8 = !DILocation(line: 0, scope: !5)
@@ -53,8 +52,8 @@ frameInfo:
   maxAlignment:    16
 # CHECK-LABEL: foo
 # CHECK: stack:
-# CHECK:  - { id: 0, name: y.i, offset: 0, size: 256, alignment: 16, di-variable: '!6',
-# CHECK-NEXT: di-expression: '!11', di-location: '!12' }
+# CHECK:  - { id: 0, name: y.i, offset: 0, size: 256, alignment: 16, di-variable: '!4',
+# CHECK-NEXT: di-expression: '!10', di-location: '!11' }
 stack:
   - { id: 0, name: y.i, offset: 0, size: 256, alignment: 16, di-variable: '!4',
       di-expression: '!7', di-location: '!8' }
diff --git a/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir b/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir
index 250645a5416..630e20fb133 100644
--- a/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir
+++ b/llvm/test/CodeGen/MIR/X86/unknown-metadata-node.mir
@@ -20,11 +20,10 @@
   !llvm.module.flags = !{!9, !10}
   !llvm.ident = !{!11}
 
-  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.ll", directory: "")
   !2 = !{}
-  !3 = !{!4}
-  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, 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, unit: !0, variables: !2)
   !5 = !DIFile(filename: "test.c", directory: "")
   !6 = !DISubroutineType(types: !7)
   !7 = !{!8, !8}
diff --git a/llvm/test/CodeGen/NVPTX/debug-file-loc.ll b/llvm/test/CodeGen/NVPTX/debug-file-loc.ll
index ccea7228109..008e9ce5458 100644
--- a/llvm/test/CodeGen/NVPTX/debug-file-loc.ll
+++ b/llvm/test/CodeGen/NVPTX/debug-file-loc.ll
@@ -30,14 +30,13 @@ bb:
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!8, !9}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
 !1 = !DIFile(filename: "bar.cu", directory: "/source/dir")
 !2 = !{}
-!3 = !{!4, !7}
-!4 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
 !5 = !DIFile(filename: "foo.h", directory: "/source/dir")
 !6 = !DISubroutineType(types: !2)
-!7 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
+!7 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
 !8 = !{i32 2, !"Dwarf Version", i32 4}
 !9 = !{i32 2, !"Debug Info Version", i32 3}
 !10 = !DILocation(line: 1, column: 31, scope: !4)
diff --git a/llvm/test/CodeGen/PowerPC/dbg.ll b/llvm/test/CodeGen/PowerPC/dbg.ll
index 68671c5be0f..94c8a88316a 100644
--- a/llvm/test/CodeGen/PowerPC/dbg.ll
+++ b/llvm/test/CodeGen/PowerPC/dbg.ll
@@ -17,10 +17,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!22}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1", isOptimized: true, emissionKind: FullDebug, file: !21, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1, imports: !1)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1", isOptimized: true, emissionKind: FullDebug, file: !21, enums: !1, retainedTypes: !1, globals: !1, imports: !1)
 !1 = !{}
-!3 = !{!5}
-!5 = distinct !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !21, scope: null, type: !7, variables: !13)
+!5 = distinct !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, file: !21, scope: null, type: !7, 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
index 3b343ae61dc..852ebfec576 100644
--- a/llvm/test/CodeGen/PowerPC/pr17168.ll
+++ b/llvm/test/CodeGen/PowerPC/pr17168.ll
@@ -54,11 +54,10 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!438, !464}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 190311)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !298, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 190311)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !298, imports: !2)
 !1 = !DIFile(filename: "bt.c", directory: "/home/hfinkel/src/NPB2.3-omp-C/BT")
 !2 = !{}
-!3 = !{!4, !82, !102, !114, !132, !145, !154, !155, !162, !183, !200, !201, !207, !208, !215, !221, !230, !238, !246, !255, !260, !261, !268, !274, !279, !280, !287, !293}
-!4 = distinct !DISubprogram(name: "main", line: 74, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 74, file: !1, scope: !5, type: !6, variables: !12)
+!4 = distinct !DISubprogram(name: "main", line: 74, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 74, file: !1, scope: !5, type: !6, variables: !12)
 !5 = !DIFile(filename: "bt.c", directory: "/home/hfinkel/src/NPB2.3-omp-C/BT")
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8, !9}
@@ -136,7 +135,7 @@ attributes #1 = { nounwind readnone }
 !79 = !DICompositeType(tag: DW_TAG_array_type, size: 160, align: 8, baseType: !11, elements: !80)
 !80 = !{!81}
 !81 = !DISubrange(count: 20)
-!82 = distinct !DISubprogram(name: "verify", line: 2388, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2388, file: !1, scope: !5, type: !83, variables: !86)
+!82 = distinct !DISubprogram(name: "verify", line: 2388, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2388, file: !1, scope: !5, type: !83, variables: !86)
 !83 = !DISubroutineType(types: !84)
 !84 = !{null, !8, !10, !85}
 !85 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !24)
@@ -156,7 +155,7 @@ attributes #1 = { nounwind readnone }
 !99 = !DILocalVariable(name: "xcr", line: 2398, scope: !82, file: !5, type: !91)
 !100 = !DILocalVariable(name: "dtref", line: 2398, scope: !82, file: !5, type: !20)
 !101 = !DILocalVariable(name: "m", line: 2399, scope: !82, file: !5, type: !8)
-!102 = distinct !DISubprogram(name: "rhs_norm", line: 266, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 266, file: !1, scope: !5, type: !103, variables: !106)
+!102 = distinct !DISubprogram(name: "rhs_norm", line: 266, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 266, file: !1, scope: !5, type: !103, variables: !106)
 !103 = !DISubroutineType(types: !104)
 !104 = !{null, !105}
 !105 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !20)
@@ -168,7 +167,7 @@ attributes #1 = { nounwind readnone }
 !111 = !DILocalVariable(name: "d", line: 271, scope: !102, file: !5, type: !8)
 !112 = !DILocalVariable(name: "m", line: 271, scope: !102, file: !5, type: !8)
 !113 = !DILocalVariable(name: "add", line: 272, scope: !102, file: !5, type: !20)
-!114 = distinct !DISubprogram(name: "compute_rhs", line: 1767, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1767, file: !1, scope: !5, type: !115, variables: !117)
+!114 = distinct !DISubprogram(name: "compute_rhs", line: 1767, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1767, file: !1, scope: !5, type: !115, variables: !117)
 !115 = !DISubroutineType(types: !116)
 !116 = !{null}
 !117 = !{!118, !119, !120, !121, !122, !123, !124, !125, !126, !127, !128, !129, !130, !131}
@@ -186,7 +185,7 @@ attributes #1 = { nounwind readnone }
 !129 = !DILocalVariable(name: "wijk", line: 1770, scope: !114, file: !5, type: !20)
 !130 = !DILocalVariable(name: "wp1", line: 1770, scope: !114, file: !5, type: !20)
 !131 = !DILocalVariable(name: "wm1", line: 1770, scope: !114, file: !5, type: !20)
-!132 = distinct !DISubprogram(name: "error_norm", line: 225, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 225, file: !1, scope: !5, type: !103, variables: !133)
+!132 = distinct !DISubprogram(name: "error_norm", line: 225, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 225, file: !1, scope: !5, type: !103, variables: !133)
 !133 = !{!134, !135, !136, !137, !138, !139, !140, !141, !142, !143, !144}
 !134 = !DILocalVariable(name: "rms", line: 225, arg: 1, scope: !132, file: !5, type: !105)
 !135 = !DILocalVariable(name: "i", line: 232, scope: !132, file: !5, type: !8)
@@ -199,7 +198,7 @@ attributes #1 = { nounwind readnone }
 !142 = !DILocalVariable(name: "zeta", line: 233, scope: !132, file: !5, type: !20)
 !143 = !DILocalVariable(name: "u_exact", line: 233, scope: !132, file: !5, type: !91)
 !144 = !DILocalVariable(name: "add", line: 233, scope: !132, file: !5, type: !20)
-!145 = distinct !DISubprogram(name: "exact_solution", line: 643, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 644, file: !1, scope: !5, type: !146, variables: !148)
+!145 = distinct !DISubprogram(name: "exact_solution", line: 643, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 644, file: !1, scope: !5, type: !146, variables: !148)
 !146 = !DISubroutineType(types: !147)
 !147 = !{null, !20, !20, !20, !105}
 !148 = !{!149, !150, !151, !152, !153}
@@ -208,15 +207,15 @@ attributes #1 = { nounwind readnone }
 !151 = !DILocalVariable(name: "zeta", line: 643, arg: 3, scope: !145, file: !5, type: !20)
 !152 = !DILocalVariable(name: "dtemp", line: 644, arg: 4, scope: !145, file: !5, type: !105)
 !153 = !DILocalVariable(name: "m", line: 653, scope: !145, file: !5, type: !8)
-!154 = distinct !DISubprogram(name: "set_constants", line: 2191, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2191, file: !1, scope: !5, type: !115, variables: !2)
-!155 = distinct !DISubprogram(name: "lhsinit", line: 855, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 855, file: !1, scope: !5, type: !115, variables: !156)
+!154 = distinct !DISubprogram(name: "set_constants", line: 2191, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2191, file: !1, scope: !5, type: !115, variables: !2)
+!155 = distinct !DISubprogram(name: "lhsinit", line: 855, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 855, file: !1, scope: !5, type: !115, variables: !156)
 !156 = !{!157, !158, !159, !160, !161}
 !157 = !DILocalVariable(name: "i", line: 857, scope: !155, file: !5, type: !8)
 !158 = !DILocalVariable(name: "j", line: 857, scope: !155, file: !5, type: !8)
 !159 = !DILocalVariable(name: "k", line: 857, scope: !155, file: !5, type: !8)
 !160 = !DILocalVariable(name: "m", line: 857, scope: !155, file: !5, type: !8)
 !161 = !DILocalVariable(name: "n", line: 857, scope: !155, file: !5, type: !8)
-!162 = distinct !DISubprogram(name: "initialize", line: 669, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 669, file: !1, scope: !5, type: !115, variables: !163)
+!162 = distinct !DISubprogram(name: "initialize", line: 669, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 669, file: !1, scope: !5, type: !115, variables: !163)
 !163 = !{!164, !165, !166, !167, !168, !169, !170, !171, !172, !173, !174, !179, !180, !181, !182}
 !164 = !DILocalVariable(name: "i", line: 679, scope: !162, file: !5, type: !8)
 !165 = !DILocalVariable(name: "j", line: 679, scope: !162, file: !5, type: !8)
@@ -237,7 +236,7 @@ attributes #1 = { nounwind readnone }
 !180 = !DILocalVariable(name: "Peta", line: 680, scope: !162, file: !5, type: !20)
 !181 = !DILocalVariable(name: "Pzeta", line: 680, scope: !162, file: !5, type: !20)
 !182 = !DILocalVariable(name: "temp", line: 680, scope: !162, file: !5, type: !91)
-!183 = distinct !DISubprogram(name: "exact_rhs", line: 301, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 301, file: !1, scope: !5, type: !115, variables: !184)
+!183 = distinct !DISubprogram(name: "exact_rhs", line: 301, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 301, file: !1, scope: !5, type: !115, variables: !184)
 !184 = !{!185, !186, !187, !188, !189, !190, !191, !192, !193, !194, !195, !196, !197, !198, !199}
 !185 = !DILocalVariable(name: "dtemp", line: 310, scope: !183, file: !5, type: !91)
 !186 = !DILocalVariable(name: "xi", line: 310, scope: !183, file: !5, type: !20)
@@ -254,28 +253,28 @@ attributes #1 = { nounwind readnone }
 !197 = !DILocalVariable(name: "jm1", line: 311, scope: !183, file: !5, type: !8)
 !198 = !DILocalVariable(name: "km1", line: 311, scope: !183, file: !5, type: !8)
 !199 = !DILocalVariable(name: "kp1", line: 311, scope: !183, file: !5, type: !8)
-!200 = distinct !DISubprogram(name: "adi", line: 210, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 210, file: !1, scope: !5, type: !115, variables: !2)
-!201 = distinct !DISubprogram(name: "add", line: 187, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 187, file: !1, scope: !5, type: !115, variables: !202)
+!200 = distinct !DISubprogram(name: "adi", line: 210, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 210, file: !1, scope: !5, type: !115, variables: !2)
+!201 = distinct !DISubprogram(name: "add", line: 187, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 187, file: !1, scope: !5, type: !115, variables: !202)
 !202 = !{!203, !204, !205, !206}
 !203 = !DILocalVariable(name: "i", line: 193, scope: !201, file: !5, type: !8)
 !204 = !DILocalVariable(name: "j", line: 193, scope: !201, file: !5, type: !8)
 !205 = !DILocalVariable(name: "k", line: 193, scope: !201, file: !5, type: !8)
 !206 = !DILocalVariable(name: "m", line: 193, scope: !201, file: !5, type: !8)
-!207 = distinct !DISubprogram(name: "z_solve", line: 3457, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3457, file: !1, scope: !5, type: !115, variables: !2)
-!208 = distinct !DISubprogram(name: "z_backsubstitute", line: 3480, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3480, file: !1, scope: !5, type: !115, variables: !209)
+!207 = distinct !DISubprogram(name: "z_solve", line: 3457, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3457, file: !1, scope: !5, type: !115, variables: !2)
+!208 = distinct !DISubprogram(name: "z_backsubstitute", line: 3480, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3480, file: !1, scope: !5, type: !115, variables: !209)
 !209 = !{!210, !211, !212, !213, !214}
 !210 = !DILocalVariable(name: "i", line: 3492, scope: !208, file: !5, type: !8)
 !211 = !DILocalVariable(name: "j", line: 3492, scope: !208, file: !5, type: !8)
 !212 = !DILocalVariable(name: "k", line: 3492, scope: !208, file: !5, type: !8)
 !213 = !DILocalVariable(name: "m", line: 3492, scope: !208, file: !5, type: !8)
 !214 = !DILocalVariable(name: "n", line: 3492, scope: !208, file: !5, type: !8)
-!215 = distinct !DISubprogram(name: "z_solve_cell", line: 3512, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3512, file: !1, scope: !5, type: !115, variables: !216)
+!215 = distinct !DISubprogram(name: "z_solve_cell", line: 3512, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3512, file: !1, scope: !5, type: !115, variables: !216)
 !216 = !{!217, !218, !219, !220}
 !217 = !DILocalVariable(name: "i", line: 3527, scope: !215, file: !5, type: !8)
 !218 = !DILocalVariable(name: "j", line: 3527, scope: !215, file: !5, type: !8)
 !219 = !DILocalVariable(name: "k", line: 3527, scope: !215, file: !5, type: !8)
 !220 = !DILocalVariable(name: "ksize", line: 3527, scope: !215, file: !5, type: !8)
-!221 = distinct !DISubprogram(name: "binvrhs", line: 3154, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3154, file: !1, scope: !5, type: !222, variables: !225)
+!221 = distinct !DISubprogram(name: "binvrhs", line: 3154, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3154, file: !1, scope: !5, type: !222, variables: !225)
 !222 = !DISubroutineType(types: !223)
 !223 = !{null, !224, !105}
 !224 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !91)
@@ -284,7 +283,7 @@ attributes #1 = { nounwind readnone }
 !227 = !DILocalVariable(name: "r", line: 3154, arg: 2, scope: !221, file: !5, type: !105)
 !228 = !DILocalVariable(name: "pivot", line: 3159, scope: !221, file: !5, type: !20)
 !229 = !DILocalVariable(name: "coeff", line: 3159, scope: !221, file: !5, type: !20)
-!230 = distinct !DISubprogram(name: "matmul_sub", line: 2841, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2842, file: !1, scope: !5, type: !231, variables: !233)
+!230 = distinct !DISubprogram(name: "matmul_sub", line: 2841, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2842, file: !1, scope: !5, type: !231, variables: !233)
 !231 = !DISubroutineType(types: !232)
 !232 = !{null, !224, !224, !224}
 !233 = !{!234, !235, !236, !237}
@@ -292,7 +291,7 @@ attributes #1 = { nounwind readnone }
 !235 = !DILocalVariable(name: "bblock", line: 2841, arg: 2, scope: !230, file: !5, type: !224)
 !236 = !DILocalVariable(name: "cblock", line: 2842, arg: 3, scope: !230, file: !5, type: !224)
 !237 = !DILocalVariable(name: "j", line: 2851, scope: !230, file: !5, type: !8)
-!238 = distinct !DISubprogram(name: "matvec_sub", line: 2814, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2814, file: !1, scope: !5, type: !239, variables: !241)
+!238 = distinct !DISubprogram(name: "matvec_sub", line: 2814, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2814, file: !1, scope: !5, type: !239, variables: !241)
 !239 = !DISubroutineType(types: !240)
 !240 = !{null, !224, !105, !105}
 !241 = !{!242, !243, !244, !245}
@@ -300,7 +299,7 @@ attributes #1 = { nounwind readnone }
 !243 = !DILocalVariable(name: "avec", line: 2814, arg: 2, scope: !238, file: !5, type: !105)
 !244 = !DILocalVariable(name: "bvec", line: 2814, arg: 3, scope: !238, file: !5, type: !105)
 !245 = !DILocalVariable(name: "i", line: 2823, scope: !238, file: !5, type: !8)
-!246 = distinct !DISubprogram(name: "binvcrhs", line: 2885, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2885, file: !1, scope: !5, type: !247, variables: !249)
+!246 = distinct !DISubprogram(name: "binvcrhs", line: 2885, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2885, file: !1, scope: !5, type: !247, variables: !249)
 !247 = !DISubroutineType(types: !248)
 !248 = !{null, !224, !224, !105}
 !249 = !{!250, !251, !252, !253, !254}
@@ -309,45 +308,45 @@ attributes #1 = { nounwind readnone }
 !252 = !DILocalVariable(name: "r", line: 2885, arg: 3, scope: !246, file: !5, type: !105)
 !253 = !DILocalVariable(name: "pivot", line: 2890, scope: !246, file: !5, type: !20)
 !254 = !DILocalVariable(name: "coeff", line: 2890, scope: !246, file: !5, type: !20)
-!255 = distinct !DISubprogram(name: "lhsz", line: 1475, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1475, file: !1, scope: !5, type: !115, variables: !256)
+!255 = distinct !DISubprogram(name: "lhsz", line: 1475, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1475, file: !1, scope: !5, type: !115, variables: !256)
 !256 = !{!257, !258, !259}
 !257 = !DILocalVariable(name: "i", line: 1484, scope: !255, file: !5, type: !8)
 !258 = !DILocalVariable(name: "j", line: 1484, scope: !255, file: !5, type: !8)
 !259 = !DILocalVariable(name: "k", line: 1484, scope: !255, file: !5, type: !8)
-!260 = distinct !DISubprogram(name: "y_solve", line: 3299, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3299, file: !1, scope: !5, type: !115, variables: !2)
-!261 = distinct !DISubprogram(name: "y_backsubstitute", line: 3323, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3323, file: !1, scope: !5, type: !115, variables: !262)
+!260 = distinct !DISubprogram(name: "y_solve", line: 3299, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3299, file: !1, scope: !5, type: !115, variables: !2)
+!261 = distinct !DISubprogram(name: "y_backsubstitute", line: 3323, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3323, file: !1, scope: !5, type: !115, variables: !262)
 !262 = !{!263, !264, !265, !266, !267}
 !263 = !DILocalVariable(name: "i", line: 3335, scope: !261, file: !5, type: !8)
 !264 = !DILocalVariable(name: "j", line: 3335, scope: !261, file: !5, type: !8)
 !265 = !DILocalVariable(name: "k", line: 3335, scope: !261, file: !5, type: !8)
 !266 = !DILocalVariable(name: "m", line: 3335, scope: !261, file: !5, type: !8)
 !267 = !DILocalVariable(name: "n", line: 3335, scope: !261, file: !5, type: !8)
-!268 = distinct !DISubprogram(name: "y_solve_cell", line: 3355, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3355, file: !1, scope: !5, type: !115, variables: !269)
+!268 = distinct !DISubprogram(name: "y_solve_cell", line: 3355, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3355, file: !1, scope: !5, type: !115, variables: !269)
 !269 = !{!270, !271, !272, !273}
 !270 = !DILocalVariable(name: "i", line: 3370, scope: !268, file: !5, type: !8)
 !271 = !DILocalVariable(name: "j", line: 3370, scope: !268, file: !5, type: !8)
 !272 = !DILocalVariable(name: "k", line: 3370, scope: !268, file: !5, type: !8)
 !273 = !DILocalVariable(name: "jsize", line: 3370, scope: !268, file: !5, type: !8)
-!274 = distinct !DISubprogram(name: "lhsy", line: 1181, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1181, file: !1, scope: !5, type: !115, variables: !275)
+!274 = distinct !DISubprogram(name: "lhsy", line: 1181, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1181, file: !1, scope: !5, type: !115, variables: !275)
 !275 = !{!276, !277, !278}
 !276 = !DILocalVariable(name: "i", line: 1190, scope: !274, file: !5, type: !8)
 !277 = !DILocalVariable(name: "j", line: 1190, scope: !274, file: !5, type: !8)
 !278 = !DILocalVariable(name: "k", line: 1190, scope: !274, file: !5, type: !8)
-!279 = distinct !DISubprogram(name: "x_solve", line: 2658, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2658, file: !1, scope: !5, type: !115, variables: !2)
-!280 = distinct !DISubprogram(name: "x_backsubstitute", line: 2684, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2684, file: !1, scope: !5, type: !115, variables: !281)
+!279 = distinct !DISubprogram(name: "x_solve", line: 2658, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2658, file: !1, scope: !5, type: !115, variables: !2)
+!280 = distinct !DISubprogram(name: "x_backsubstitute", line: 2684, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2684, file: !1, scope: !5, type: !115, variables: !281)
 !281 = !{!282, !283, !284, !285, !286}
 !282 = !DILocalVariable(name: "i", line: 2696, scope: !280, file: !5, type: !8)
 !283 = !DILocalVariable(name: "j", line: 2696, scope: !280, file: !5, type: !8)
 !284 = !DILocalVariable(name: "k", line: 2696, scope: !280, file: !5, type: !8)
 !285 = !DILocalVariable(name: "m", line: 2696, scope: !280, file: !5, type: !8)
 !286 = !DILocalVariable(name: "n", line: 2696, scope: !280, file: !5, type: !8)
-!287 = distinct !DISubprogram(name: "x_solve_cell", line: 2716, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2716, file: !1, scope: !5, type: !115, variables: !288)
+!287 = distinct !DISubprogram(name: "x_solve_cell", line: 2716, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2716, file: !1, scope: !5, type: !115, variables: !288)
 !288 = !{!289, !290, !291, !292}
 !289 = !DILocalVariable(name: "i", line: 2728, scope: !287, file: !5, type: !8)
 !290 = !DILocalVariable(name: "j", line: 2728, scope: !287, file: !5, type: !8)
 !291 = !DILocalVariable(name: "k", line: 2728, scope: !287, file: !5, type: !8)
 !292 = !DILocalVariable(name: "isize", line: 2728, scope: !287, file: !5, type: !8)
-!293 = distinct !DISubprogram(name: "lhsx", line: 898, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 898, file: !1, scope: !5, type: !115, variables: !294)
+!293 = distinct !DISubprogram(name: "lhsx", line: 898, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 898, file: !1, scope: !5, type: !115, variables: !294)
 !294 = !{!295, !296, !297}
 !295 = !DILocalVariable(name: "i", line: 907, scope: !293, file: !5, type: !8)
 !296 = !DILocalVariable(name: "j", line: 907, scope: !293, file: !5, type: !8)
diff --git a/llvm/test/CodeGen/PowerPC/pr24546.ll b/llvm/test/CodeGen/PowerPC/pr24546.ll
index 18f420fb8e5..2519bb623bc 100644
--- a/llvm/test/CodeGen/PowerPC/pr24546.ll
+++ b/llvm/test/CodeGen/PowerPC/pr24546.ll
@@ -56,13 +56,12 @@ attributes #3 = { nounwind }
 !llvm.module.flags = !{!29, !30}
 !llvm.ident = !{!31}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (git://github.com/llvm-mirror/clang.git e0848b6353721eb1b278a5bbea257bbf6316251e) (git://github.com/llvm-mirror/llvm.git 8724a428dfd5e78d7865bb01783708e83f9ed128)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, subprograms: !5, globals: !23)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (git://github.com/llvm-mirror/clang.git e0848b6353721eb1b278a5bbea257bbf6316251e) (git://github.com/llvm-mirror/llvm.git 8724a428dfd5e78d7865bb01783708e83f9ed128)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !23)
 !1 = !DIFile(filename: "testcase.i", directory: "/tmp/glibc.build")
 !2 = !{}
 !3 = !{!4}
 !4 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
-!5 = !{!6, !18}
-!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, 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, unit: !0, 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 +73,7 @@ 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 = 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)
+!18 = distinct !DISubprogram(name: "php_intpow10", scope: !1, file: !1, line: 1, type: !19, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, 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
index b5219cea9d0..59b68342bd9 100644
--- a/llvm/test/CodeGen/PowerPC/unwind-dw2-g.ll
+++ b/llvm/test/CodeGen/PowerPC/unwind-dw2-g.ll
@@ -21,11 +21,10 @@ attributes #0 = { nounwind }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!8, !11}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "/tmp/unwind-dw2.c", directory: "/tmp")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, 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
index 18bed613cd3..28c91330308 100644
--- a/llvm/test/CodeGen/Thumb/2010-07-15-debugOrdering.ll
+++ b/llvm/test/CodeGen/Thumb/2010-07-15-debugOrdering.ll
@@ -51,9 +51,9 @@ 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 = distinct !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, unit: !5, 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: FullDebug, file: !101, enums: !102, retainedTypes: !102, subprograms: !{!3, !37, !41, !42, !77})
+!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: FullDebug, file: !101, enums: !102, retainedTypes: !102)
 !6 = !DISubroutineType(types: !7)
 !7 = !{!8, !22, !22}
 !8 = !DICompositeType(tag: DW_TAG_structure_type, name: "ggVector3", line: 66, size: 192, align: 32, file: !99, elements: !10)
@@ -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 = distinct !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, unit: !5, 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 = 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)
+!41 = distinct !DISubprogram(name: "y", linkageName: "_ZN9ggVector31yEv", line: 86, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !5, file: !9, scope: !8, type: !38)
+!42 = distinct !DISubprogram(name: "z", linkageName: "_ZN9ggVector31zEv", line: 87, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !5, 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 = distinct !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, unit: !5, 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/WinEH/wineh-cloning.ll b/llvm/test/CodeGen/WinEH/wineh-cloning.ll
index 96b40d09fc7..86984c7b5db 100644
--- a/llvm/test/CodeGen/WinEH/wineh-cloning.ll
+++ b/llvm/test/CodeGen/WinEH/wineh-cloning.ll
@@ -383,11 +383,10 @@ exit:
 !llvm.dbg.cu = !{!1}
 
 !0 = !{i32 2, !"Debug Info Version", i32 3}
-!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "compiler", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, subprograms: !4)
+!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "compiler", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3)
 !2 = !DIFile(filename: "test.cpp", directory: ".")
 !3 = !{}
-!4 = !{!5}
-!5 = distinct !DISubprogram(name: "test12", scope: !2, file: !2, type: !6, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, variables: !3)
+!5 = distinct !DISubprogram(name: "test12", scope: !2, file: !2, type: !6, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !1, variables: !3)
 !6 = !DISubroutineType(types: !7)
 !7 = !{null}
 !8 = !DILocation(line: 1, scope: !5)
diff --git a/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll b/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll
index b061460be82..c0b078ab3ff 100644
--- a/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll
+++ b/llvm/test/CodeGen/X86/2009-02-12-DebugInfoVLA.ll
@@ -78,7 +78,7 @@ declare void @llvm.stackrestore(i8*) nounwind
 
 !llvm.dbg.cu = !{!2}
 !0 = !DILocalVariable(name: "s1", line: 2, arg: 1, scope: !1, file: !2, type: !6)
-!1 = distinct !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, unit: !2, 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: FullDebug, 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
index 1ef775fef42..840a479de25 100644
--- a/llvm/test/CodeGen/X86/2009-10-16-Scope.ll
+++ b/llvm/test/CodeGen/X86/2009-10-16-Scope.ll
@@ -25,7 +25,7 @@ declare i32 @foo(i32) ssp
 !llvm.dbg.cu = !{!3}
 !0 = !DILocation(line: 5, column: 2, scope: !1)
 !1 = distinct !DILexicalBlock(line: 1, column: 1, file: null, scope: !2)
-!2 = distinct !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, unit: !3, scope: !3)
 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 1.1", isOptimized: true, emissionKind: FullDebug, 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
index 0f5fec5a2c5..8b11fd86ef1 100644
--- a/llvm/test/CodeGen/X86/2010-01-18-DbgValue.ll
+++ b/llvm/test/CodeGen/X86/2010-01-18-DbgValue.ll
@@ -32,9 +32,9 @@ 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 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !19, scope: !2, type: !4)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 11, file: !19, scope: !2, type: !4)
 !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: FullDebug, file: !19, enums: !20, retainedTypes: !20, subprograms: !18)
+!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !19, enums: !20, retainedTypes: !20)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6, !7}
 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
@@ -49,7 +49,6 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !15 = !DILocation(line: 11, scope: !1)
 !16 = !DILocation(line: 12, scope: !17)
 !17 = distinct !DILexicalBlock(line: 11, column: 0, file: !19, scope: !1)
-!18 = !{!1}
 !19 = !DIFile(filename: "b2.c", directory: "/tmp/")
 !20 = !{}
 !21 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll b/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll
index 2db05d17d40..b4bb865f7f7 100644
--- a/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll
+++ b/llvm/test/CodeGen/X86/2010-02-01-DbgValueCrash.ll
@@ -29,7 +29,7 @@ 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 = distinct !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, unit: !0, 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
index 1a225321070..3172f82b286 100644
--- a/llvm/test/CodeGen/X86/2010-05-25-DotDebugLoc.ll
+++ b/llvm/test/CodeGen/X86/2010-05-25-DotDebugLoc.ll
@@ -200,9 +200,9 @@ 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 = distinct !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 1922, file: !45, scope: !2, type: !4, variables: !43)
+!1 = distinct !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !3, scopeLine: 1922, file: !45, scope: !2, type: !4, 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: FullDebug, file: !45, enums: !47, retainedTypes: !47, subprograms: !44, imports:  null)
+!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: FullDebug, file: !45, enums: !47, retainedTypes: !47, imports:  null)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6, !9, !9, !9, !9}
 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "SCtype", line: 170, file: !46, scope: !7, baseType: !8)
@@ -243,7 +243,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !41 = !DILocation(line: 1965, scope: !15)
 !42 = !DILocation(line: 1969, scope: !15)
 !43 = !{!0, !11, !12, !13, !14, !16, !17, !18}
-!44 = !{!1}
 !45 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
 !46 = !DIFile(filename: "libgcc2.h", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
 !47 = !{}
diff --git a/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll b/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
index c915ac51991..30e5e346d29 100644
--- a/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
+++ b/llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
@@ -26,14 +26,14 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 
 !0 = !DIGlobalVariable(name: "ret", line: 7, isLocal: false, isDefinition: true, scope: !1, file: !1, type: !3)
 !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)", isOptimized: true, emissionKind: FullDebug, file: !36, enums: !37, retainedTypes: !37, subprograms: !32, globals: !31, imports:  !37)
+!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: FullDebug, file: !36, enums: !37, retainedTypes: !37, 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 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 13, file: !36, scope: !1, type: !6, variables: !33)
+!5 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !2, scopeLine: 13, file: !36, scope: !1, type: !6, variables: !33)
 !6 = !DISubroutineType(types: !7)
 !7 = !{null, !3}
 !8 = !DILocalVariable(name: "myvar", line: 17, arg: 1, scope: !9, file: !1, type: !13)
-!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, variables: !34)
+!9 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 17, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !2, scopeLine: 17, file: !36, scope: !1, type: !10, 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 = 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)
+!19 = distinct !DISubprogram(name: "main", linkageName: "main", line: 22, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !2, 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)
@@ -56,7 +56,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !29 = distinct !DILexicalBlock(line: 17, column: 0, file: !36, scope: !9)
 !30 = !DILocation(line: 19, scope: !29)
 !31 = !{!0}
-!32 = !{!5, !9, !19}
 !33 = !{!4}
 !34 = !{!8}
 !35 = !{!18, !25, !26}
diff --git a/llvm/test/CodeGen/X86/2010-05-28-Crash.ll b/llvm/test/CodeGen/X86/2010-05-28-Crash.ll
index 5dfca039799..38bbe4e367b 100644
--- 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 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 2, file: !18, scope: !2, type: !4, variables: !15)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !3, scopeLine: 2, file: !18, scope: !2, type: !4, 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: FullDebug, file: !18, enums: !19, retainedTypes: !19, subprograms: !17, imports:  null)
+!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: FullDebug, file: !18, enums: !19, retainedTypes: !19, 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 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 6, file: !18, scope: !2, type: !4, variables: !16)
+!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !3, scopeLine: 6, file: !18, scope: !2, type: !4, variables: !16)
 !9 = !DILocation(line: 3, scope: !10)
 !10 = distinct !DILexicalBlock(line: 2, column: 0, file: !18, scope: !1)
 !11 = !{i32 1}
@@ -42,7 +42,6 @@ entry:
 !14 = distinct !DILexicalBlock(line: 6, column: 0, file: !18, scope: !8)
 !15 = !{!0}
 !16 = !{!7}
-!17 = !{!1, !8}
 !18 = !DIFile(filename: "f.c", directory: "/tmp")
 !19 = !{}
 
diff --git a/llvm/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll b/llvm/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll
index f5d6cee8c58..fa3932d2669 100644
--- 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 = distinct !DISubprogram(name: "bar", linkageName: "_ZN3foo3barEi", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 11, file: !31, scope: !2, type: !9)
+!1 = distinct !DISubprogram(name: "bar", linkageName: "_ZN3foo3barEi", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4, scopeLine: 11, file: !31, scope: !2, type: !9)
 !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: FullDebug, file: !31, enums: !32, retainedTypes: !32, subprograms: !33)
+!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 LLVM build", isOptimized: true, emissionKind: FullDebug, file: !31, enums: !32, retainedTypes: !32)
 !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 = distinct !DISubprogram(name: "baz", linkageName: "_ZN3foo3bazEi", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 15, file: !31, scope: !2, type: !9)
+!8 = distinct !DISubprogram(name: "baz", linkageName: "_ZN3foo3bazEi", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4, scopeLine: 15, file: !31, scope: !2, type: !9)
 !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 = distinct !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, unit: !4, 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)
@@ -56,5 +56,4 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !30 = distinct !DILexicalBlock(line: 15, column: 0, file: !31, scope: !8)
 !31 = !DIFile(filename: "foo.cp", directory: "/tmp/")
 !32 = !{}
-!33 = !{!1, !8, !18}
 !34 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll b/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll
index 8d0fd1406ac..f86a7601e21 100644
--- a/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll
+++ b/llvm/test/CodeGen/X86/2010-07-06-DbgCrash.ll
@@ -10,7 +10,7 @@
 !39 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", isOptimized: true, emissionKind: FullDebug, 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 = distinct !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, unit: !39, 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
index f3a73a39172..e63a36d7fa3 100644
--- a/llvm/test/CodeGen/X86/2010-08-04-StackVariable.ll
+++ b/llvm/test/CodeGen/X86/2010-08-04-StackVariable.ll
@@ -81,7 +81,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !0 = !DISubprogram(name: "SVal", line: 11, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !47, scope: !1, type: !14)
 !1 = !DICompositeType(tag: DW_TAG_structure_type, name: "SVal", line: 1, size: 128, align: 64, file: !47, scope: !2, elements: !4)
 !2 = !DIFile(filename: "small.cc", directory: "/Users/manav/R8248330")
-!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, subprograms: !46, imports:  null)
+!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, imports:  null)
 !4 = !{!5, !7, !0, !9}
 !5 = !DIDerivedType(tag: DW_TAG_member, name: "Data", line: 7, size: 64, align: 64, file: !47, scope: !1, baseType: !6)
 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !47, scope: !2, baseType: null)
@@ -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 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !47, scope: !1, type: !14)
-!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)
+!16 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 11, file: !47, scope: !1, type: !14)
+!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 16, file: !47, scope: !2, type: !18)
 !18 = !DISubroutineType(types: !19)
 !19 = !{!13, !13, !1}
-!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)
+!20 = distinct !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 23, file: !47, scope: !2, type: !21)
 !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
index 38df38a2fb2..0291ce0da46 100644
--- a/llvm/test/CodeGen/X86/2010-09-16-EmptyFilename.ll
+++ b/llvm/test/CodeGen/X86/2010-09-16-EmptyFilename.ll
@@ -15,20 +15,19 @@ entry:
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!17}
 
-!0 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 53, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !14, scope: !1, type: !3)
+!0 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 53, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2, file: !14, scope: !1, type: !3)
 !1 = !DIFile(filename: "", directory: "/private/tmp")
-!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 114084)", isOptimized: false, emissionKind: FullDebug, file: !15, enums: !16, retainedTypes: !16, subprograms: !13)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 114084)", isOptimized: false, emissionKind: FullDebug, file: !15, enums: !16, retainedTypes: !16)
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !15, scope: !7, type: !3)
+!6 = distinct !DISubprogram(name: "bar", linkageName: "bar", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2, file: !15, scope: !7, type: !3)
 !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)
 !10 = !DILocation(line: 4, column: 13, scope: !11)
 !11 = distinct !DILexicalBlock(line: 4, column: 13, file: !15, scope: !12)
 !12 = distinct !DILexicalBlock(line: 4, column: 11, file: !15, scope: !6)
-!13 = !{!0, !6}
 !14 = !DIFile(filename: "", directory: "/private/tmp")
 !15 = !DIFile(filename: "bug.c", directory: "/private/tmp")
 !16 = !{}
diff --git a/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll b/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll
index 62d1b3906a7..be2d040a0dc 100644
--- a/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll
+++ b/llvm/test/CodeGen/X86/2010-11-02-DbgParameter.ll
@@ -18,9 +18,9 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!19}
 
-!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, variables: !16)
+!0 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 3, file: !17, scope: !1, type: !3, 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: FullDebug, file: !17, enums: !18, retainedTypes: !18, subprograms: !15, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 117922)", isOptimized: true, emissionKind: FullDebug, file: !17, enums: !18, retainedTypes: !18, 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)
@@ -33,7 +33,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !12 = !DILocation(line: 3, column: 47, scope: !0)
 !13 = !DILocation(line: 4, column: 2, scope: !14)
 !14 = distinct !DILexicalBlock(line: 3, column: 50, file: !17, scope: !0)
-!15 = !{!0}
 !16 = !{!6}
 !17 = !DIFile(filename: "one.c", directory: "/private/tmp")
 !18 = !{}
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
index 15d2d2be7d2..d4f4e905710 100644
--- 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 = distinct !DISubprogram(name: "gcd", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !31, scope: !1, type: !3, variables: !29)
+!0 = distinct !DISubprogram(name: "gcd", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, file: !31, scope: !1, type: !3, 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: FullDebug, file: !31, enums: !32, retainedTypes: !32, subprograms: !28, imports:  null)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 124117)", isOptimized: true, emissionKind: FullDebug, file: !31, enums: !32, retainedTypes: !32, 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 = distinct !DISubprogram(name: "main", line: 25, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !31, scope: !1, type: !7, variables: !30)
+!6 = distinct !DISubprogram(name: "main", line: 25, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !2, file: !31, scope: !1, type: !7, 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)
@@ -106,7 +106,6 @@ declare i32 @puts(i8* nocapture) nounwind
 !25 = !DILocation(line: 27, column: 38, scope: !15)
 !26 = !DILocation(line: 28, column: 9, scope: !15)
 !27 = !DILocation(line: 30, column: 1, scope: !15)
-!28 = !{!0, !6}
 !29 = !{!10, !11, !12}
 !30 = !{!14, !17}
 !31 = !DIFile(filename: "rem_small.c", directory: "/private/tmp")
diff --git a/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
index 8f842e00a27..495ff0304b1 100644
--- a/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
+++ b/llvm/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
@@ -38,7 +38,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!12}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 168918) (llvm/trunk 168920)", isOptimized: true, emissionKind: FullDebug, file: !11, enums: !2, retainedTypes: !2, subprograms: !13, globals: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 168918) (llvm/trunk 168920)", isOptimized: true, emissionKind: FullDebug, file: !11, enums: !2, retainedTypes: !2, globals: !2)
 !2 = !{}
 !4 = !DILocalVariable(name: "hg", line: 725, arg: 4, scope: !14, file: !5, type: !6)
 !5 = !DIFile(filename: "MultiSource/Benchmarks/Olden/bh/newbh.c", directory: "MultiSource/Benchmarks/Olden/bh")
@@ -46,7 +46,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !7 = !DICompositeType(tag: DW_TAG_structure_type, line: 487, size: 512, align: 64, file: !11)
 !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 = distinct !DISubprogram(name: "subdivp", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !11, scope: !5, type: !15)
+!14 = distinct !DISubprogram(name: "subdivp", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !11, scope: !5, type: !15)
 !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
index ec66ccf016a..fbe6000d7ac 100644
--- a/llvm/test/CodeGen/X86/2012-11-30-misched-dbg.ll
+++ b/llvm/test/CodeGen/X86/2012-11-30-misched-dbg.ll
@@ -65,7 +65,7 @@ declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!35}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 168918) (llvm/trunk 168920)", isOptimized: true, emissionKind: FullDebug, file: !19, enums: !2, retainedTypes: !2, subprograms: !20, globals: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 168918) (llvm/trunk 168920)", isOptimized: true, emissionKind: FullDebug, file: !19, enums: !2, retainedTypes: !2, globals: !2)
 !1 = !{!2}
 !2 = !{}
 !4 = !DILocalVariable(name: "num1", line: 815, scope: !5, file: !14, type: !15)
@@ -85,8 +85,7 @@ declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
 !18 = !DISubrange(count: 20)
 !19 = !DIFile(filename: "MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c", directory: "MultiSource/Benchmarks/MiBench/consumer-typeset")
 
-!20 = !{!21}
-!21 = distinct !DISubprogram(name: "AttachGalley", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22)
+!21 = distinct !DISubprogram(name: "AttachGalley", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !19, scope: !14, type: !22)
 !22 = !DISubroutineType(types: !23)
 !23 = !{null}
 
@@ -134,11 +133,10 @@ declare void @_Znwm()
 
 !llvm.dbg.cu = !{!30}
 
-!30 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 169129) (llvm/trunk 169135)", isOptimized: true, emissionKind: FullDebug, file: !34, enums: !2, retainedTypes: !2, subprograms: !36)
+!30 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 169129) (llvm/trunk 169135)", isOptimized: true, emissionKind: FullDebug, file: !34, enums: !2, retainedTypes: !2)
 !31 = !DILocalVariable(name: "X", line: 29, scope: !37, type: !32)
 !32 = !DIDerivedType(tag: DW_TAG_typedef, name: "HM", line: 28, file: !34, baseType: null)
 !33 = !DIFile(filename: "SingleSource/Benchmarks/Shootout-C++/hash.cpp", directory: "SingleSource/Benchmarks/Shootout-C++")
 !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 = distinct !DISubprogram(name: "main", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !19, scope: !14, type: !22)
+!37 = distinct !DISubprogram(name: "main", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !30, scopeLine: 1, file: !19, scope: !14, type: !22)
diff --git a/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
index b7904a726f6..a717202d357 100644
--- a/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
+++ b/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
@@ -36,9 +36,8 @@ invoke.cont44:                                    ; preds = %if.end
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!8}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 168984) (llvm/trunk 168983)", isOptimized: true, emissionKind: FullDebug, file: !6, subprograms: !1)
-!1 = !{!2}
-!2 = distinct !DISubprogram(name: "test", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !6, scope: !5, type: !7)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 168984) (llvm/trunk 168983)", isOptimized: true, emissionKind: FullDebug, file: !6)
+!2 = distinct !DISubprogram(name: "test", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !6, scope: !5, type: !7)
 !3 = !DILocalVariable(name: "callback", line: 214, scope: !2, type: !4)
 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "btCompoundLeafCallback", line: 90, size: 64, 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
index 33c6e2fc390..a794c896eb2 100644
--- a/llvm/test/CodeGen/X86/MachineSink-DbgValue.ll
+++ b/llvm/test/CodeGen/X86/MachineSink-DbgValue.ll
@@ -28,8 +28,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!0}
 !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: FullDebug, file: !20, enums: !21, retainedTypes: !21, subprograms: !18, imports:  null)
-!1 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, file: !20, scope: !2, type: !3, variables: !19)
+!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: FullDebug, file: !20, enums: !21, retainedTypes: !21, imports:  null)
+!1 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, file: !20, scope: !2, type: !3, variables: !19)
 !2 = !DIFile(filename: "a.c", directory: "/private/tmp")
 !3 = !DISubroutineType(types: !4)
 !4 = !{!5}
@@ -46,7 +46,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !15 = !DILocation(line: 4, column: 3, scope: !11)
 !16 = !DILocation(line: 5, column: 5, scope: !11)
 !17 = !DILocation(line: 7, column: 1, scope: !11)
-!18 = !{!1}
 !19 = !{!6, !7, !10}
 !20 = !DIFile(filename: "a.c", directory: "/private/tmp")
 !21 = !{}
diff --git a/llvm/test/CodeGen/X86/StackColoring-dbg.ll b/llvm/test/CodeGen/X86/StackColoring-dbg.ll
index aa6aa1b2f91..15be7aa1029 100644
--- a/llvm/test/CodeGen/X86/StackColoring-dbg.ll
+++ b/llvm/test/CodeGen/X86/StackColoring-dbg.ll
@@ -28,9 +28,9 @@ declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind
 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!23}
-!0 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !{}, retainedTypes: !{}, subprograms: !{!2})
+!0 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "clang", isOptimized: true, emissionKind: FullDebug, 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 = distinct !DISubprogram()
+!2 = distinct !DISubprogram(unit: !0)
 !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/bit-piece-comment.ll b/llvm/test/CodeGen/X86/bit-piece-comment.ll
index ed2d80e2564..9ebe5bc6d5a 100644
--- a/llvm/test/CodeGen/X86/bit-piece-comment.ll
+++ b/llvm/test/CodeGen/X86/bit-piece-comment.ll
@@ -39,11 +39,10 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!16, !17}
 !llvm.ident = !{!18}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 256088) (llvm/trunk 256097)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 256088) (llvm/trunk 256097)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "test.cpp", directory: "/mnt/extra")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "fn1", linkageName: "_Z3fn1v", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, variables: !7)
+!4 = distinct !DISubprogram(name: "fn1", linkageName: "_Z3fn1v", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !7)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null}
 !7 = !{!8}
diff --git a/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll b/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
index 34a046f16c8..dfc19fbe35f 100644
--- a/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
+++ b/llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
@@ -124,7 +124,7 @@ attributes #4 = { nounwind }
 !llvm.module.flags = !{!43, !44}
 !llvm.ident = !{!45}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, subprograms: !23)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
 !1 = !DIFile(filename: "test.cpp", directory: "/mnt/extra")
 !2 = !{}
 !3 = !{!4}
@@ -147,8 +147,7 @@ attributes #4 = { nounwind }
 !20 = !{!15, !21}
 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !22, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
 !22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !"_ZTS4AAA3")
-!23 = !{!24, !34, !39}
-!24 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barii", scope: !1, file: !1, line: 11, type: !25, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, variables: !28)
+!24 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barii", scope: !1, file: !1, line: 11, type: !25, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !28)
 !25 = !DISubroutineType(types: !26)
 !26 = !{null, !27, !27}
 !27 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
@@ -158,12 +157,12 @@ attributes #4 = { nounwind }
 !31 = !DILocalVariable(name: "temp", scope: !24, file: !1, line: 12, type: !15)
 !32 = !DILocalVariable(name: "var1", scope: !24, file: !1, line: 17, type: !"_ZTS4AAA3")
 !33 = !DILocalVariable(name: "var2", scope: !24, file: !1, line: 18, type: !"_ZTS4AAA3")
-!34 = distinct !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", scope: !"_ZTS4AAA3", file: !1, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, declaration: !11, variables: !35)
+!34 = distinct !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", scope: !"_ZTS4AAA3", file: !1, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !11, variables: !35)
 !35 = !{!36, !38}
 !36 = !DILocalVariable(name: "this", arg: 1, scope: !34, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer)
 !37 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !"_ZTS4AAA3", size: 64, align: 64)
 !38 = !DILocalVariable(name: "value", arg: 2, scope: !34, file: !1, line: 5, type: !15)
-!39 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !"_ZTS4AAA3", file: !1, line: 6, type: !12, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, declaration: !17, variables: !40)
+!39 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !"_ZTS4AAA3", file: !1, line: 6, type: !12, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !17, variables: !40)
 !40 = !{!41, !42}
 !41 = !DILocalVariable(name: "this", arg: 1, scope: !39, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer)
 !42 = !DILocalVariable(name: "value", arg: 2, scope: !39, file: !1, line: 6, type: !15)
diff --git a/llvm/test/CodeGen/X86/dbg-combine.ll b/llvm/test/CodeGen/X86/dbg-combine.ll
index 56b37292ceb..3a44fe186f9 100644
--- a/llvm/test/CodeGen/X86/dbg-combine.ll
+++ b/llvm/test/CodeGen/X86/dbg-combine.ll
@@ -74,11 +74,10 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 227074)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 227074)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "dbg-combine.c", directory: "/home/probinson/projects/scratch")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, 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/debugloc-argsize.ll b/llvm/test/CodeGen/X86/debugloc-argsize.ll
index 48843f629c8..75a791757c0 100644
--- a/llvm/test/CodeGen/X86/debugloc-argsize.ll
+++ b/llvm/test/CodeGen/X86/debugloc-argsize.ll
@@ -38,11 +38,10 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!7, !8}
 !llvm.ident = !{!9}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 249520)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 249520)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "foo.cpp", directory: "foo")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null}
 !7 = !{i32 2, !"Dwarf Version", i32 4}
diff --git a/llvm/test/CodeGen/X86/dwarf-comp-dir.ll b/llvm/test/CodeGen/X86/dwarf-comp-dir.ll
index 6bb15ecf291..b744a70288e 100644
--- a/llvm/test/CodeGen/X86/dwarf-comp-dir.ll
+++ b/llvm/test/CodeGen/X86/dwarf-comp-dir.ll
@@ -7,7 +7,7 @@ target triple = "x86_64-unknown-linux-gnu"
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!5}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143523)", isOptimized: true, emissionKind: FullDebug, file: !4, enums: !2, retainedTypes: !7, subprograms: !2, globals: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143523)", isOptimized: true, emissionKind: FullDebug, file: !4, enums: !2, retainedTypes: !7, globals: !2)
 !2 = !{}
 !3 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
 !4 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
diff --git a/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll b/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll
index 2eb51b6e9c1..874cc7ce7f3 100644
--- a/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll
+++ b/llvm/test/CodeGen/X86/fpstack-debuginstr-kill.ll
@@ -43,11 +43,10 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!24, !25}
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (http://llvm.org/git/clang 8444ae7cfeaefae031f8fedf0d1435ca3b14d90b) (http://llvm.org/git/llvm 886f0101a7d176543b831f5efb74c03427244a55)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !21, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (http://llvm.org/git/clang 8444ae7cfeaefae031f8fedf0d1435ca3b14d90b) (http://llvm.org/git/llvm 886f0101a7d176543b831f5efb74c03427244a55)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !21, imports: !2)
 !1 = !DIFile(filename: "fpu_ieee.cpp", directory: "x87stackifier")
 !2 = !{}
-!3 = !{!4}
-!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, variables: !10)
+!4 = distinct !DISubprogram(name: "fpuop_arithmetic", linkageName: "_Z16fpuop_arithmeticjj", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 13, file: !5, scope: !6, type: !7, 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/loc-remat.ll b/llvm/test/CodeGen/X86/loc-remat.ll
index f1ba3627288..d91ba4b9926 100644
--- a/llvm/test/CodeGen/X86/loc-remat.ll
+++ b/llvm/test/CodeGen/X86/loc-remat.ll
@@ -37,11 +37,10 @@ declare void @exit(i32)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!6, !7}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 259383) (llvm/trunk 259385)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 259383) (llvm/trunk 259385)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
 !1 = !DIFile(filename: "t.c", directory: "/home/majnemer/llvm/src")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, variables: !2)
+!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, variables: !2)
 !5 = !DISubroutineType(types: !2)
 !6 = !{i32 2, !"Dwarf Version", i32 4}
 !7 = !{i32 2, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll b/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll
index a340b0d7487..5b7c5445316 100644
--- a/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll
+++ b/llvm/test/CodeGen/X86/machine-trace-metrics-crash.ll
@@ -51,10 +51,10 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!2}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, subprograms: !{!3})
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
 !1 = !DIFile(filename: "24199.cpp", directory: "/bin")
 !2 = !{i32 2, !"Debug Info Version", i32 3}
-!3 = distinct !DISubprogram(linkageName: "foo", file: !1, line: 18, isLocal: false, isDefinition: true, scopeLine: 18)
+!3 = distinct !DISubprogram(linkageName: "foo", file: !1, line: 18, isLocal: false, isDefinition: true, scopeLine: 18, unit: !0)
 !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
index dfac8025a9a..a505a591d15 100644
--- a/llvm/test/CodeGen/X86/misched-code-difference-with-debug.ll
+++ b/llvm/test/CodeGen/X86/misched-code-difference-with-debug.ll
@@ -62,7 +62,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!22, !23}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, enums: !2, retainedTypes: !3, subprograms: !12, globals: !20, imports: !2, emissionKind: FullDebug)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, enums: !2, retainedTypes: !3, globals: !20, imports: !2, emissionKind: FullDebug)
 !1 = !DIFile(filename: "test.cpp", directory: "")
 !2 = !{}
 !3 = !{!4}
@@ -74,8 +74,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
 !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 = 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, variables: !17)
+!13 = distinct !DISubprogram(name: "test_with_debug", linkageName: "test_with_debug", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 6, file: !1, scope: !14, type: !15, variables: !17)
 !14 = !DIFile(filename: "test.cpp", directory: "")
 !15 = !DISubroutineType(types: !16)
 !16 = !{null}
diff --git a/llvm/test/CodeGen/X86/movpc32-check.ll b/llvm/test/CodeGen/X86/movpc32-check.ll
index 5575f3ba405..f50613e9c71 100644
--- a/llvm/test/CodeGen/X86/movpc32-check.ll
+++ b/llvm/test/CodeGen/X86/movpc32-check.ll
@@ -19,11 +19,10 @@ attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-
 !llvm.module.flags = !{!7, !8, !9}
 !llvm.ident = !{!10}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (http://llvm.org/git/clang.git 3490ab8630d5643f71f1f04e46984f05b27b8d67) (http://llvm.org/git/llvm.git d2643e2ff955ed234944fe3c6b4ffc1250085843)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (http://llvm.org/git/clang.git 3490ab8630d5643f71f1f04e46984f05b27b8d67) (http://llvm.org/git/llvm.git d2643e2ff955ed234944fe3c6b4ffc1250085843)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "test.c", directory: "movpc-test")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, variables: !2)
+!4 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, unit: !0, variables: !2)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null}
 !7 = !{i32 2, !"Dwarf Version", i32 4}
diff --git a/llvm/test/CodeGen/X86/null-streamer.ll b/llvm/test/CodeGen/X86/null-streamer.ll
index dcd3caddfb0..b331b92868f 100644
--- a/llvm/test/CodeGen/X86/null-streamer.ll
+++ b/llvm/test/CodeGen/X86/null-streamer.ll
@@ -14,11 +14,10 @@ define void @f1() {
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!11, !13}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: " ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !9, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: " ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !9, imports: !2)
 !1 = !DIFile(filename: "file.c", directory: "")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !1, type: !6, variables: !2)
+!4 = distinct !DISubprogram(name: "", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !1, type: !6, 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/push-cfi-debug.ll b/llvm/test/CodeGen/X86/push-cfi-debug.ll
index 66023992d55..7f438e306e4 100644
--- a/llvm/test/CodeGen/X86/push-cfi-debug.ll
+++ b/llvm/test/CodeGen/X86/push-cfi-debug.ll
@@ -38,11 +38,10 @@ attributes #0 = { nounwind optsize }
 !llvm.module.flags = !{!7, !8}
 !llvm.ident = !{!9}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 250289)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 250289)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "foo.c", directory: "foo")
 !2 = !{}
-!3 = !{!4}
-!4 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, variables: !2)
+!4 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, variables: !2)
 !5 = !DISubroutineType(types: !6)
 !6 = !{null}
 !7 = !{i32 2, !"Dwarf Version", i32 4}
diff --git a/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll b/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
index 801afdbba03..8413b8ef82c 100644
--- a/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
+++ b/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
@@ -25,7 +25,7 @@ attributes #0 = { sspreq }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!21, !72}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !5, subprograms: !8, globals: !20, imports: !5)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !5, globals: !20, imports: !5)
 !1 = !DIFile(filename: "<unknown>", directory: "/Users/matt/ryan_bug")
 !2 = !{!3}
 !3 = !DICompositeType(tag: DW_TAG_enumeration_type, line: 20, size: 32, align: 32, file: !1, scope: !4, elements: !6)
@@ -33,8 +33,7 @@ attributes #0 = { sspreq }
 !5 = !{}
 !6 = !{!7}
 !7 = !DIEnumerator(name: "max_frame_size", value: 0) ; [ DW_TAG_enumerator ] [max_frame_size :: 0]
-!8 = !{!9, !24, !41, !65}
-!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, 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, unit: !0, scopeLine: 27, file: !1, scope: !10, type: !11, variables: !14)
 !10 = !DIFile(filename: "<unknown>", directory: "/Users/matt/ryan_bug")
 !11 = !DISubroutineType(types: !12)
 !12 = !{!13}
@@ -49,7 +48,7 @@ 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 = 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)
+!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, unit: !0, 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 +65,7 @@ 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 = 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)
+!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, unit: !0, 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 +85,7 @@ 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 = 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)
+!65 = distinct !DISubprogram(name: "operator()", linkageName: "_ZN3__11AclERKiS2_", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, 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
index a2512e60940..1058994d0ee 100644
--- a/llvm/test/CodeGen/X86/unknown-location.ll
+++ b/llvm/test/CodeGen/X86/unknown-location.ll
@@ -22,15 +22,14 @@ entry:
 !llvm.module.flags = !{!12}
 
 !0 = !DILocalVariable(name: "x", line: 1, arg: 2, scope: !1, file: !2, type: !6)
-!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)
+!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 1, file: !10, scope: !2, type: !4)
 !2 = !DIFile(filename: "test.c", directory: "/dir")
-!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "producer", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !11, retainedTypes: !11, subprograms: !9)
+!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "producer", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !11, retainedTypes: !11)
 !4 = !DISubroutineType(types: !5)
 !5 = !{!6}
 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !7 = distinct !DILexicalBlock(line: 1, column: 30, file: !10, scope: !1)
 !8 = !DILocation(line: 4, column: 3, scope: !7)
-!9 = !{!1}
 !10 = !DIFile(filename: "test.c", directory: "/dir")
 !11 = !{}
 !12 = !{i32 1, !"Debug Info Version", i32 3}
diff --git a/llvm/test/CodeGen/XCore/dwarf_debug.ll b/llvm/test/CodeGen/XCore/dwarf_debug.ll
index 68a03947baa..d9b2f24d997 100644
--- a/llvm/test/CodeGen/XCore/dwarf_debug.ll
+++ b/llvm/test/CodeGen/XCore/dwarf_debug.ll
@@ -23,11 +23,10 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata)
 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!9, !10}
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "test.c", directory: "")
 !2 = !{}
-!3 = !{!4}
-!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, variables: !2)
+!4 = distinct !DISubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !1, type: !6, 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)
author	Adrian Prantl <aprantl@apple.com>	2016-04-15 15:57:41 +0000
committer	Adrian Prantl <aprantl@apple.com>	2016-04-15 15:57:41 +0000
commit	75819aedf6d774a424e35793b266442708e57050 (patch)
tree	e4eabf3bd19e9dee6ed3aefc8f4e2cb16d6bb285 /llvm/test/CodeGen
parent	e76bda544bbf52d9ff3b55e6018b494a1e6bbc00 (diff)
download	bcm5719-llvm-75819aedf6d774a424e35793b266442708e57050.tar.gz bcm5719-llvm-75819aedf6d774a424e35793b266442708e57050.zip