From cec7ce78d7fbf467aab075a3ce1fd128261b1a88 Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Tue, 4 Feb 2014 01:23:52 +0000
Subject: [PATCH] DebugInfo: Remove some unneeded conditionals now that
 DIBuilder no longer emits zero-length arrays as {i32 0}

A bunch of test cases needed to be cleaned up for this, many my fault -
when implementid imported modules I updated test cases by simply
duplicating the prior metadata field - which wasn't always the empty
metadata entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200731 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp                  | 6 ++----
 lib/CodeGen/AsmPrinter/DwarfUnit.cpp                   | 3 +--
 test/CodeGen/ARM/2010-08-04-StackVariable.ll           | 2 +-
 test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll         | 4 ++--
 test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll         | 4 ++--
 test/CodeGen/ARM/coalesce-dbgvalue.ll                  | 2 +-
 test/CodeGen/Hexagon/hwloop-dbg.ll                     | 5 +++--
 test/CodeGen/PowerPC/dbg.ll                            | 2 +-
 test/CodeGen/PowerPC/pr17168.ll                        | 2 +-
 test/CodeGen/PowerPC/unwind-dw2-g.ll                   | 2 +-
 test/CodeGen/X86/2010-05-26-DotDebugLoc.ll             | 4 ++--
 test/CodeGen/X86/2012-11-30-handlemove-dbg.ll          | 6 ++----
 test/CodeGen/X86/2012-11-30-misched-dbg.ll             | 7 +++----
 test/CodeGen/X86/dwarf-comp-dir.ll                     | 2 +-
 test/CodeGen/X86/stack-protector-dbginfo.ll            | 2 +-
 test/DebugInfo/2009-11-10-CurrentFn.ll                 | 2 +-
 test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll         | 7 ++++---
 test/DebugInfo/AArch64/dwarfdump.ll                    | 2 +-
 test/DebugInfo/AArch64/variable-loc.ll                 | 2 +-
 test/DebugInfo/ARM/PR16736.ll                          | 2 +-
 test/DebugInfo/ARM/sectionorder.ll                     | 3 +--
 test/DebugInfo/PowerPC/tls-fission.ll                  | 2 +-
 test/DebugInfo/PowerPC/tls.ll                          | 2 +-
 test/DebugInfo/Sparc/gnu-window-save.ll                | 2 +-
 test/DebugInfo/SystemZ/variable-loc.ll                 | 2 +-
 test/DebugInfo/X86/2010-08-10-DbgConstant.ll           | 3 ++-
 test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll      | 4 ++--
 test/DebugInfo/X86/2011-12-16-BadStructRef.ll          | 2 +-
 test/DebugInfo/X86/DW_AT_byte_size.ll                  | 2 +-
 test/DebugInfo/X86/DW_AT_object_pointer.ll             | 2 +-
 test/DebugInfo/X86/DW_AT_specification.ll              | 4 ++--
 test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll       | 2 +-
 test/DebugInfo/X86/DW_TAG_friend.ll                    | 4 ++--
 test/DebugInfo/X86/aligned_stack_var.ll                | 2 +-
 test/DebugInfo/X86/arange.ll                           | 2 +-
 test/DebugInfo/X86/arguments.ll                        | 2 +-
 test/DebugInfo/X86/block-capture.ll                    | 2 +-
 test/DebugInfo/X86/byvalstruct.ll                      | 2 +-
 test/DebugInfo/X86/c-type-units.ll                     | 2 +-
 test/DebugInfo/X86/coff_debug_info_type.ll             | 2 +-
 test/DebugInfo/X86/coff_relative_names.ll              | 2 +-
 test/DebugInfo/X86/concrete_out_of_line.ll             | 4 ++--
 test/DebugInfo/X86/cu-ranges-odr.ll                    | 2 +-
 test/DebugInfo/X86/cu-ranges.ll                        | 2 +-
 test/DebugInfo/X86/data_member_location.ll             | 2 +-
 test/DebugInfo/X86/dbg-declare.ll                      | 2 +-
 test/DebugInfo/X86/dbg-subrange.ll                     | 4 ++--
 test/DebugInfo/X86/dbg-value-inlined-parameter.ll      | 3 ++-
 test/DebugInfo/X86/dbg_value_direct.ll                 | 2 +-
 test/DebugInfo/X86/debug-info-block-captured-self.ll   | 2 +-
 test/DebugInfo/X86/debug-info-blocks.ll                | 2 +-
 test/DebugInfo/X86/debug-info-static-member.ll         | 4 ++--
 test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll    | 2 +-
 test/DebugInfo/X86/dwarf-aranges.ll                    | 2 +-
 test/DebugInfo/X86/dwarf-public-names.ll               | 4 ++--
 test/DebugInfo/X86/dwarf-pubnames-split.ll             | 2 +-
 test/DebugInfo/X86/elf-names.ll                        | 2 +-
 test/DebugInfo/X86/empty-and-one-elem-array.ll         | 2 +-
 test/DebugInfo/X86/empty-array.ll                      | 4 ++--
 test/DebugInfo/X86/ending-run.ll                       | 2 +-
 test/DebugInfo/X86/enum-class.ll                       | 4 ++--
 test/DebugInfo/X86/enum-fwd-decl.ll                    | 4 ++--
 test/DebugInfo/X86/fission-cu.ll                       | 4 ++--
 test/DebugInfo/X86/fission-hash.ll                     | 2 +-
 test/DebugInfo/X86/fission-ranges.ll                   | 5 +++--
 test/DebugInfo/X86/generate-odr-hash.ll                | 2 +-
 test/DebugInfo/X86/gnu-public-names-empty.ll           | 2 +-
 test/DebugInfo/X86/gnu-public-names.ll                 | 2 +-
 test/DebugInfo/X86/line-info.ll                        | 2 +-
 test/DebugInfo/X86/linkage-name.ll                     | 4 ++--
 test/DebugInfo/X86/low-pc-cu.ll                        | 2 +-
 test/DebugInfo/X86/misched-dbg-value.ll                | 4 ++--
 test/DebugInfo/X86/multiple-aranges.ll                 | 2 +-
 test/DebugInfo/X86/multiple-at-const-val.ll            | 4 ++--
 test/DebugInfo/X86/nondefault-subrange-array.ll        | 4 ++--
 test/DebugInfo/X86/objc-fwd-decl.ll                    | 4 ++--
 test/DebugInfo/X86/objc-property-void.ll               | 2 +-
 test/DebugInfo/X86/op_deref.ll                         | 2 +-
 test/DebugInfo/X86/parameters.ll                       | 2 +-
 test/DebugInfo/X86/pointer-type-size.ll                | 4 ++--
 test/DebugInfo/X86/pr11300.ll                          | 2 +-
 test/DebugInfo/X86/pr13303.ll                          | 2 +-
 test/DebugInfo/X86/prologue-stack.ll                   | 2 +-
 test/DebugInfo/X86/ref_addr_relocation.ll              | 2 +-
 test/DebugInfo/X86/reference-argument.ll               | 2 +-
 test/DebugInfo/X86/rvalue-ref.ll                       | 2 +-
 test/DebugInfo/X86/stmt-list-multiple-compile-units.ll | 2 +-
 test/DebugInfo/X86/stringpool.ll                       | 4 ++--
 test/DebugInfo/X86/struct-loc.ll                       | 4 ++--
 test/DebugInfo/X86/subrange-type.ll                    | 2 +-
 test/DebugInfo/X86/template.ll                         | 2 +-
 test/DebugInfo/X86/tls-fission.ll                      | 2 +-
 test/DebugInfo/X86/tls.ll                              | 2 +-
 test/DebugInfo/X86/union-template.ll                   | 4 ++--
 test/DebugInfo/X86/vector.ll                           | 4 ++--
 test/DebugInfo/X86/vla.ll                              | 2 +-
 test/DebugInfo/cu-ranges.ll                            | 2 +-
 test/DebugInfo/debug-info-qualifiers.ll                | 2 +-
 test/DebugInfo/dwarf-public-names.ll                   | 4 ++--
 test/DebugInfo/enum.ll                                 | 2 +-
 test/DebugInfo/global.ll                               | 2 +-
 test/DebugInfo/inlined-arguments.ll                    | 2 +-
 test/DebugInfo/inlined-vars.ll                         | 5 +++--
 test/DebugInfo/member-order.ll                         | 2 +-
 test/DebugInfo/member-pointers.ll                      | 4 ++--
 test/DebugInfo/template-recursive-void.ll              | 2 +-
 test/DebugInfo/tu-composite.ll                         | 2 +-
 test/DebugInfo/tu-member-pointer.ll                    | 2 +-
 test/DebugInfo/two-cus-from-same-file.ll               | 2 +-
 test/DebugInfo/version.ll                              | 2 +-
 test/Linker/Inputs/type-unique-simple2-a.ll            | 2 +-
 test/Linker/Inputs/type-unique-simple2-b.ll            | 2 +-
 test/Linker/type-unique-simple-a.ll                    | 2 +-
 test/Linker/type-unique-simple-b.ll                    | 2 +-
 test/Linker/type-unique-simple2-a.ll                   | 2 +-
 test/Linker/type-unique-simple2-b.ll                   | 2 +-
 116 files changed, 157 insertions(+), 158 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 24beebbd35a..c313639baa9 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -849,8 +849,7 @@ void DwarfDebug::constructSubprogramDIE(DwarfCompileUnit *TheCU,
 void DwarfDebug::constructImportedEntityDIE(DwarfCompileUnit *TheCU,
                                             const MDNode *N) {
   DIImportedEntity Module(N);
-  if (!Module.Verify())
-    return;
+  assert(Module.Verify());
   if (DIE *D = TheCU->getOrCreateContextDIE(Module.getContext()))
     constructImportedEntityDIE(TheCU, Module, D);
 }
@@ -858,8 +857,7 @@ void DwarfDebug::constructImportedEntityDIE(DwarfCompileUnit *TheCU,
 void DwarfDebug::constructImportedEntityDIE(DwarfCompileUnit *TheCU,
                                             const MDNode *N, DIE *Context) {
   DIImportedEntity Module(N);
-  if (!Module.Verify())
-    return;
+  assert(Module.Verify());
   return constructImportedEntityDIE(TheCU, Module, Context);
 }
 
diff --git a/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index 0723eb85a28..a1db1e0a2ed 100644
--- a/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -1532,8 +1532,7 @@ void DwarfCompileUnit::createGlobalVariableDIE(DIGlobalVariable GV) {
   if (getDIE(GV))
     return;
 
-  if (!GV.isGlobalVariable())
-    return;
+  assert(GV.isGlobalVariable());
 
   DIScope GVContext = GV.getContext();
   DIType GTy = GV.getType();
diff --git a/test/CodeGen/ARM/2010-08-04-StackVariable.ll b/test/CodeGen/ARM/2010-08-04-StackVariable.ll
index 7aacd1aa70c..bc4cc98d12f 100644
--- a/test/CodeGen/ARM/2010-08-04-StackVariable.ll
+++ b/test/CodeGen/ARM/2010-08-04-StackVariable.ll
@@ -124,6 +124,6 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !44 = metadata !{i32 786688, metadata !39, metadata !"k", metadata !2, i32 26, metadata !13, i32 0, i32 0} ; [ DW_TAG_auto_variable ]
 !45 = metadata !{i32 27, i32 0, metadata !39, null}
 !46 = metadata !{metadata !0, metadata !9, metadata !16, metadata !17, metadata !20}
-!47 = metadata !{i32 0}
+!47 = metadata !{}
 !48 = metadata !{metadata !"small.cc", metadata !"/Users/manav/R8248330"}
 !49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll b/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
index f57411bb2c5..93f9bffe861 100644
--- a/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
+++ b/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
@@ -80,7 +80,7 @@ entry:
 
 !0 = metadata !{i32 786478, metadata !47, metadata !1, metadata !"get1", metadata !"get1", metadata !"get1", i32 4, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get1, null, null, metadata !42, i32 4} ; [ DW_TAG_subprogram ]
 !1 = metadata !{i32 786473, metadata !47} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 786449, metadata !47, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41,  metadata !41, metadata !""} ; [ DW_TAG_compile_unit ]
+!2 = metadata !{i32 786449, metadata !47, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41,  metadata !48, metadata !""} ; [ DW_TAG_compile_unit ]
 !3 = metadata !{i32 786453, metadata !47, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !4 = metadata !{metadata !5, metadata !5}
 !5 = metadata !{i32 786468, metadata !47, metadata !1, metadata !"_Bool", i32 0, i64 8, i64 8, i64 0, i32 0, i32 2} ; [ DW_TAG_base_type ]
@@ -126,5 +126,5 @@ entry:
 !45 = metadata !{metadata !24, metadata !25}
 !46 = metadata !{metadata !27, metadata !28}
 !47 = metadata !{metadata !"foo.c", metadata !"/tmp/"}
-!48 = metadata !{i32 0}
+!48 = metadata !{}
 !49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll b/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
index bb7870764c5..0100f2af4f1 100644
--- a/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
+++ b/test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
@@ -75,7 +75,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!49}
 
-!0 = metadata !{i32 786449, metadata !47, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41,  metadata !41, null} ; [ DW_TAG_compile_unit ]
+!0 = metadata !{i32 786449, metadata !47, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41,  metadata !48, null} ; [ DW_TAG_compile_unit ]
 !1 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get1", metadata !"get1", metadata !"", i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get1, null, null, metadata !42, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [get1]
 !2 = metadata !{i32 786473, metadata !47} ; [ DW_TAG_file_type ]
 !3 = metadata !{i32 786453, metadata !47, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
@@ -123,5 +123,5 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !45 = metadata !{metadata !19, metadata !20}
 !46 = metadata !{metadata !27, metadata !28}
 !47 = metadata !{metadata !"ss3.c", metadata !"/private/tmp"}
-!48 = metadata !{i32 0}
+!48 = metadata !{}
 !49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/CodeGen/ARM/coalesce-dbgvalue.ll b/test/CodeGen/ARM/coalesce-dbgvalue.ll
index 86106a04520..606c9bc52d6 100644
--- a/test/CodeGen/ARM/coalesce-dbgvalue.ll
+++ b/test/CodeGen/ARM/coalesce-dbgvalue.ll
@@ -81,7 +81,7 @@ attributes #3 = { nounwind }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 182024) (llvm/trunk 182023)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !15, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/d/b/pr16110.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"pr16110.c", metadata !"/d/b"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"pr16110", metadata !"pr16110", metadata !"", i32 7, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, i32 ()* @pr16110, null, null, metadata !9, i32 7} ; [ DW_TAG_subprogram ] [line 7] [def] [pr16110]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/d/b/pr16110.c]
diff --git a/test/CodeGen/Hexagon/hwloop-dbg.ll b/test/CodeGen/Hexagon/hwloop-dbg.ll
index bfdd8130d5b..4e858f7cca8 100644
--- a/test/CodeGen/Hexagon/hwloop-dbg.ll
+++ b/test/CodeGen/Hexagon/hwloop-dbg.ll
@@ -7,7 +7,7 @@ define void @foo(i32* nocapture %a, i32* nocapture %b) nounwind {
 entry:
   tail call void @llvm.dbg.value(metadata !{i32* %a}, i64 0, metadata !13), !dbg !17
   tail call void @llvm.dbg.value(metadata !{i32* %b}, i64 0, metadata !14), !dbg !18
-  tail call void @llvm.dbg.value(metadata !2, i64 0, metadata !15), !dbg !19
+  tail call void @llvm.dbg.value(metadata !30, i64 0, metadata !15), !dbg !19
   br label %for.body, !dbg !19
 
 for.body:                                         ; preds = %for.body, %entry
@@ -38,7 +38,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.module.flags = !{!29}
 
 !0 = metadata !{i32 786449, metadata !28, i32 12, metadata !"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)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/hwloop-dbg.c] [DW_LANG_C99]
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !28, null, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32*, i32*)* @foo, null, null, metadata !11, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
 !6 = metadata !{i32 786473, metadata !28} ; [ DW_TAG_file_type ]
@@ -62,3 +62,4 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !27 = metadata !{i32 6, i32 1, metadata !16, null}
 !28 = metadata !{metadata !"hwloop-dbg.c", metadata !"/usr2/kparzysz/s.hex/t"}
 !29 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!30 = metadata !{i32 0}
diff --git a/test/CodeGen/PowerPC/dbg.ll b/test/CodeGen/PowerPC/dbg.ll
index cb93decac8e..0d6c4a63e41 100644
--- a/test/CodeGen/PowerPC/dbg.ll
+++ b/test/CodeGen/PowerPC/dbg.ll
@@ -18,7 +18,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.module.flags = !{!22}
 
 !0 = metadata !{i32 720913, metadata !21, i32 12, metadata !"clang version 3.1", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, metadata !"", metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720942, metadata !21, null, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32, i8**)* @main, null, null, metadata !13, i32 0} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 720937, metadata !21} ; [ DW_TAG_file_type ]
diff --git a/test/CodeGen/PowerPC/pr17168.ll b/test/CodeGen/PowerPC/pr17168.ll
index 2848221e076..24bcda02b3a 100644
--- a/test/CodeGen/PowerPC/pr17168.ll
+++ b/test/CodeGen/PowerPC/pr17168.ll
@@ -56,7 +56,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 190311)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !298, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/home/hfinkel/src/NPB2.3-omp-C/BT/bt.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"bt.c", metadata !"/home/hfinkel/src/NPB2.3-omp-C/BT"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !82, metadata !102, metadata !114, metadata !132, metadata !145, metadata !154, metadata !155, metadata !162, metadata !183, metadata !200, metadata !201, metadata !207, metadata !208, metadata !215, metadata !221, metadata !230, metadata !238, metadata !246, metadata !255, metadata !260, metadata !261, metadata !268, metadata !274, metadata !279, metadata !280, metadata !287, metadata !293}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 74, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, null, metadata !12, i32 74} ; [ DW_TAG_subprogram ] [line 74] [def] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/home/hfinkel/src/NPB2.3-omp-C/BT/bt.c]
diff --git a/test/CodeGen/PowerPC/unwind-dw2-g.ll b/test/CodeGen/PowerPC/unwind-dw2-g.ll
index 260d0366429..24b52070f4f 100644
--- a/test/CodeGen/PowerPC/unwind-dw2-g.ll
+++ b/test/CodeGen/PowerPC/unwind-dw2-g.ll
@@ -23,7 +23,7 @@ attributes #0 = { nounwind }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/unwind-dw2.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"/tmp/unwind-dw2.c", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/unwind-dw2.c]
diff --git a/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll b/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
index c5736eb9b44..e11b5382c23 100644
--- a/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
+++ b/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
@@ -26,7 +26,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 
 !0 = metadata !{i32 786484, i32 0, metadata !1, metadata !"ret", metadata !"ret", metadata !"", metadata !1, i32 7, metadata !3, i1 false, i1 true, null, null} ; [ DW_TAG_variable ]
 !1 = metadata !{i32 786473, metadata !36} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 786449, metadata !36, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !37, metadata !37, metadata !32, metadata !31,  metadata !31, metadata !""} ; [ DW_TAG_compile_unit ]
+!2 = metadata !{i32 786449, metadata !36, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !37, metadata !37, metadata !32, metadata !31,  metadata !37, metadata !""} ; [ DW_TAG_compile_unit ]
 !3 = metadata !{i32 786468, metadata !36, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
 !4 = metadata !{i32 786689, metadata !5, metadata !"x", metadata !1, i32 12, metadata !3, i32 0, null} ; [ DW_TAG_arg_variable ]
 !5 = metadata !{i32 786478, metadata !36, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 13, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, void (i32)* @foo, null, null, metadata !33, i32 13} ; [ DW_TAG_subprogram ]
@@ -61,7 +61,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !34 = metadata !{metadata !8}
 !35 = metadata !{metadata !18, metadata !25, metadata !26}
 !36 = metadata !{metadata !"foo.c", metadata !"/tmp/"}
-!37 = metadata !{i32 0}
+!37 = metadata !{}
 
 ; The variable bar:myvar changes registers after the first movq.
 ; It is cobbered by popq %rbx
diff --git a/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll b/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
index d41b43228b6..62ee1e15fda 100644
--- a/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
+++ b/test/CodeGen/X86/2012-11-30-handlemove-dbg.ll
@@ -38,10 +38,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!12}
 
-!0 = metadata !{i32 786449, metadata !11, i32 12, metadata !"clang version 3.3 (trunk 168918) (llvm/trunk 168920)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, null, metadata !""} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/Olden/bh/newbh.c] [DW_LANG_C99]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{null}
+!0 = metadata !{i32 786449, metadata !11, i32 12, metadata !"clang version 3.3 (trunk 168918) (llvm/trunk 168920)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/Olden/bh/newbh.c] [DW_LANG_C99]
+!2 = metadata !{}
 !4 = metadata !{i32 786689, null, metadata !"hg", metadata !5, i32 67109589, metadata !6, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [hg] [line 725]
 !5 = metadata !{i32 786473, metadata !11} ; [ DW_TAG_file_type ]
 !6 = metadata !{i32 786454, metadata !11, null, metadata !"hgstruct", i32 492, i64 0, i64 0, i64 0, i32 0, metadata !7} ; [ DW_TAG_typedef ] [hgstruct] [line 492, size 0, align 0, offset 0] [from ]
diff --git a/test/CodeGen/X86/2012-11-30-misched-dbg.ll b/test/CodeGen/X86/2012-11-30-misched-dbg.ll
index 7befa6b4757..650839a657d 100644
--- a/test/CodeGen/X86/2012-11-30-misched-dbg.ll
+++ b/test/CodeGen/X86/2012-11-30-misched-dbg.ll
@@ -65,10 +65,9 @@ declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!35}
 
-!0 = metadata !{i32 786449, metadata !19, i32 12, metadata !"clang version 3.3 (trunk 168918) (llvm/trunk 168920)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/MiBench/consumer-typeset/MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c] [DW_LANG_C99]
+!0 = metadata !{i32 786449, metadata !19, i32 12, metadata !"clang version 3.3 (trunk 168918) (llvm/trunk 168920)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/MiBench/consumer-typeset/MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c] [DW_LANG_C99]
 !1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{}
+!2 = metadata !{}
 !4 = metadata !{i32 786688, metadata !5, metadata !"num1", metadata !14, i32 815, metadata !15, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [num1] [line 815]
 !5 = metadata !{i32 786443, metadata !6, i32 815, i32 0, metadata !14, i32 177} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
 !6 = metadata !{i32 786443, metadata !7, i32 812, i32 0, metadata !14, i32 176} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
@@ -78,7 +77,7 @@ declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
 !10 = metadata !{i32 786443, metadata !11, i32 434, i32 0, metadata !14, i32 90} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
 !11 = metadata !{i32 786443, metadata !12, i32 250, i32 0, metadata !14, i32 24} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
 !12 = metadata !{i32 786443, metadata !13, i32 249, i32 0, metadata !14, i32 23} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
-!13 = metadata !{i32 786443, metadata !3, i32 221, i32 0, metadata !14, i32 19} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
+!13 = metadata !{i32 786443, metadata !2, i32 221, i32 0, metadata !14, i32 19} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
 !14 = metadata !{i32 786473, metadata !19} ; [ DW_TAG_file_type ]
 !15 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64 160, i64 8, i32 0, i32 0, metadata !16, metadata !17, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 160, align 8, offset 0] [from char]
 !16 = metadata !{i32 786468, null, null, metadata !"char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
diff --git a/test/CodeGen/X86/dwarf-comp-dir.ll b/test/CodeGen/X86/dwarf-comp-dir.ll
index 3b4a8689060..ee2fa07becb 100644
--- a/test/CodeGen/X86/dwarf-comp-dir.ll
+++ b/test/CodeGen/X86/dwarf-comp-dir.ll
@@ -8,7 +8,7 @@ target triple = "x86_64-unknown-linux-gnu"
 !llvm.module.flags = !{!5}
 
 !0 = metadata !{i32 720913, metadata !4, i32 12, metadata !"clang version 3.1 (trunk 143523)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ]
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{i32 786473, metadata !4} ; [ DW_TAG_file_type ]
 !4 = metadata !{metadata !"empty.c", metadata !"/home/nlewycky"}
 
diff --git a/test/CodeGen/X86/stack-protector-dbginfo.ll b/test/CodeGen/X86/stack-protector-dbginfo.ll
index bd27ac34769..fb7e2db3e8f 100644
--- a/test/CodeGen/X86/stack-protector-dbginfo.ll
+++ b/test/CodeGen/X86/stack-protector-dbginfo.ll
@@ -30,7 +30,7 @@ attributes #0 = { sspreq }
 !2 = metadata !{metadata !3}
 !3 = metadata !{i32 786436, metadata !1, metadata !4, metadata !"", i32 20, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [line 20, size 32, align 32, offset 0] [def] [from ]
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"C", i32 19, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [C] [line 19, size 8, align 8, offset 0] [def] [from ]
-!5 = metadata !{i32 0}
+!5 = metadata !{}
 !6 = metadata !{metadata !7}
 !7 = metadata !{i32 786472, metadata !"max_frame_size", i64 0} ; [ DW_TAG_enumerator ] [max_frame_size :: 0]
 !8 = metadata !{metadata !9}
diff --git a/test/DebugInfo/2009-11-10-CurrentFn.ll b/test/DebugInfo/2009-11-10-CurrentFn.ll
index d154c439986..151d631d686 100644
--- a/test/DebugInfo/2009-11-10-CurrentFn.ll
+++ b/test/DebugInfo/2009-11-10-CurrentFn.ll
@@ -14,7 +14,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.module.flags = !{!18}
 
 !0 = metadata !{i32 720913, metadata !17, i32 12, metadata !"clang version 3.0 (trunk 139632)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, null, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720942, metadata !17, metadata !6, metadata !"bar", metadata !"bar", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32)* @bar, null, null, metadata !9, metadata !""} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 0] [bar]
 !6 = metadata !{i32 720937, metadata !17} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll b/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
index 35530e6d99b..a461abdcdf5 100644
--- a/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
+++ b/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
@@ -15,7 +15,7 @@ define i32 @bar() nounwind ssp {
 entry:
   %0 = load i32* @i, align 4, !dbg !17            ; <i32> [#uses=2]
   tail call void @llvm.dbg.value(metadata !{i32 %0}, i64 0, metadata !9), !dbg !19
-  tail call void @llvm.dbg.declare(metadata !20, metadata !10), !dbg !21
+  tail call void @llvm.dbg.declare(metadata !29, metadata !10), !dbg !21
   %1 = mul nsw i32 %0, %0, !dbg !22               ; <i32> [#uses=2]
   store i32 %1, i32* @i, align 4, !dbg !17
   ret i32 %1, !dbg !23
@@ -26,7 +26,7 @@ entry:
 
 !0 = metadata !{i32 786478, metadata !27, metadata !1, metadata !"foo", metadata !"foo", metadata !"", i32 9, metadata !3, i1 true, i1 true, i32 0, i32 0, null, i1 false, i1 true, null, null, null, metadata !24, i32 9} ; [ DW_TAG_subprogram ]
 !1 = metadata !{i32 786473, metadata !27} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 786449, metadata !27, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !20, metadata !20, metadata !25, metadata !26,  metadata !26, metadata !""} ; [ DW_TAG_compile_unit ]
+!2 = metadata !{i32 786449, metadata !27, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !20, metadata !20, metadata !25, metadata !26,  metadata !20, metadata !""} ; [ DW_TAG_compile_unit ]
 !3 = metadata !{i32 786453, metadata !27, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !4 = metadata !{metadata !5, metadata !5}
 !5 = metadata !{i32 786468, metadata !27, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
@@ -44,7 +44,7 @@ entry:
 !17 = metadata !{i32 15, i32 0, metadata !18, null}
 !18 = metadata !{i32 786443, metadata !1, metadata !6, i32 14, i32 0, i32 1} ; [ DW_TAG_lexical_block ]
 !19 = metadata !{i32 9, i32 0, metadata !0, metadata !17}
-!20 = metadata !{null}
+!20 = metadata !{}
 !21 = metadata !{i32 9, i32 0, metadata !11, metadata !17}
 !22 = metadata !{i32 11, i32 0, metadata !11, metadata !17}
 !23 = metadata !{i32 16, i32 0, metadata !18, null}
@@ -53,3 +53,4 @@ entry:
 !26 = metadata !{metadata !16}
 !27 = metadata !{metadata !"bar.c", metadata !"/tmp/"}
 !28 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!29 = metadata !{null}
diff --git a/test/DebugInfo/AArch64/dwarfdump.ll b/test/DebugInfo/AArch64/dwarfdump.ll
index 4c205077e6d..3325f30293a 100644
--- a/test/DebugInfo/AArch64/dwarfdump.ll
+++ b/test/DebugInfo/AArch64/dwarfdump.ll
@@ -24,7 +24,7 @@ attributes #0 = { nounwind }
 !llvm.module.flags = !{!10}
 
 !0 = metadata !{i32 786449, metadata !9, i32 12, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !2, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/timnor01/llvm/build/tmp.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !2 = metadata !{metadata !3}
 !3 = metadata !{i32 786478, metadata !9, metadata !4, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !1, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [main]
 !4 = metadata !{i32 786473, metadata !9} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/AArch64/variable-loc.ll b/test/DebugInfo/AArch64/variable-loc.ll
index f42cb746480..f28ee76ebfa 100644
--- a/test/DebugInfo/AArch64/variable-loc.ll
+++ b/test/DebugInfo/AArch64/variable-loc.ll
@@ -72,7 +72,7 @@ declare i32 @printf(i8*, ...)
 !llvm.module.flags = !{!30}
 
 !0 = metadata !{i32 786449, metadata !29, i32 12, metadata !"clang version 3.2 ", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/timnor01/a64-trunk/build/simple.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !11, metadata !14}
 !5 = metadata !{i32 786478, metadata !29, metadata !6, metadata !"populate_array", metadata !"populate_array", metadata !"", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32*, i32)* @populate_array, null, null, metadata !1, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [populate_array]
 !6 = metadata !{i32 786473, metadata !29} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/ARM/PR16736.ll b/test/DebugInfo/ARM/PR16736.ll
index d01fa22318d..8c025ad487b 100644
--- a/test/DebugInfo/ARM/PR16736.ll
+++ b/test/DebugInfo/ARM/PR16736.ll
@@ -43,7 +43,7 @@ attributes #3 = { nounwind }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 190804) (llvm/trunk 190797)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [//<unknown>] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"/<unknown>", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"h", metadata !"h", metadata !"_Z1hiiiif", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32, i32, i32, i32, float)* @_Z1hiiiif, null, null, metadata !11, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [h]
 !5 = metadata !{metadata !"/arm.cpp", metadata !""}
diff --git a/test/DebugInfo/ARM/sectionorder.ll b/test/DebugInfo/ARM/sectionorder.ll
index 2e3f3bf9a17..a7030cd1b67 100644
--- a/test/DebugInfo/ARM/sectionorder.ll
+++ b/test/DebugInfo/ARM/sectionorder.ll
@@ -12,7 +12,6 @@ target triple = "thumbv7-apple-ios"
 !llvm.dbg.cu = !{!0}
 
 !0 = metadata !{i32 786449, i32 0, i32 12, metadata !"test.c", metadata !"/Volumes/Data/radar/15623193", metadata !"LLVM", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ] [/Volumes/Data/radar/15623193/test.c] [DW_LANG_C99]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
 !4 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/DebugInfo/PowerPC/tls-fission.ll b/test/DebugInfo/PowerPC/tls-fission.ll
index 4a744c72253..9cde2c79a00 100644
--- a/test/DebugInfo/PowerPC/tls-fission.ll
+++ b/test/DebugInfo/PowerPC/tls-fission.ll
@@ -23,7 +23,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !"tls.dwo"} ; [ DW_TAG_compile_unit ] [/tmp/tls.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tls.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/tls.cpp]
diff --git a/test/DebugInfo/PowerPC/tls.ll b/test/DebugInfo/PowerPC/tls.ll
index 6557f5ea47b..f2586eda424 100644
--- a/test/DebugInfo/PowerPC/tls.ll
+++ b/test/DebugInfo/PowerPC/tls.ll
@@ -19,7 +19,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/tls.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tls.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/tls.cpp]
diff --git a/test/DebugInfo/Sparc/gnu-window-save.ll b/test/DebugInfo/Sparc/gnu-window-save.ll
index 5bbad0f47bd..303a2877758 100644
--- a/test/DebugInfo/Sparc/gnu-window-save.ll
+++ b/test/DebugInfo/Sparc/gnu-window-save.ll
@@ -57,7 +57,7 @@ attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 (http://llvm.org/git/clang.git 6a0714fee07fb7c4e32d3972b4fe2ce2f5678cf4) (llvm/ 672e88e934757f76d5c5e5258be41e7615094844)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/home/venkatra/work/benchmarks/test/hello/hello.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"hello.c", metadata !"/home/venkatra/work/benchmarks/test/hello"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 4} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 4] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/home/venkatra/work/benchmarks/test/hello/hello.c]
diff --git a/test/DebugInfo/SystemZ/variable-loc.ll b/test/DebugInfo/SystemZ/variable-loc.ll
index f3b454835fd..2d92fd9edcc 100644
--- a/test/DebugInfo/SystemZ/variable-loc.ll
+++ b/test/DebugInfo/SystemZ/variable-loc.ll
@@ -58,7 +58,7 @@ declare i32 @printf(i8*, ...)
 !llvm.module.flags = !{!30}
 
 !0 = metadata !{i32 786449, metadata !29, i32 12, metadata !"clang version 3.2 ", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/timnor01/a64-trunk/build/simple.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !11, metadata !14}
 !5 = metadata !{i32 786478, metadata !29, metadata !6, metadata !"populate_array", metadata !"populate_array", metadata !"", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32*, i32)* @populate_array, null, null, metadata !1, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [populate_array]
 !6 = metadata !{i32 786473, metadata !29} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/2010-08-10-DbgConstant.ll b/test/DebugInfo/X86/2010-08-10-DbgConstant.ll
index d0a2dfaa1f3..7f42e7b70ec 100644
--- a/test/DebugInfo/X86/2010-08-10-DbgConstant.ll
+++ b/test/DebugInfo/X86/2010-08-10-DbgConstant.ll
@@ -16,7 +16,7 @@ declare void @bar(i32)
 
 !0 = metadata !{i32 786478, metadata !12, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 3, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, void ()* @foo, null, null, null, i32 3} ; [ DW_TAG_subprogram ]
 !1 = metadata !{i32 786473, metadata !12} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 786449, metadata !12, i32 12, metadata !"clang 2.8", i1 false, metadata !"", i32 0, metadata !4, metadata !4, metadata !10, metadata !11,  metadata !11, metadata !""} ; [ DW_TAG_compile_unit ]
+!2 = metadata !{i32 786449, metadata !12, i32 12, metadata !"clang 2.8", i1 false, metadata !"", i32 0, metadata !4, metadata !4, metadata !10, metadata !11,  metadata !14, metadata !""} ; [ DW_TAG_compile_unit ]
 !3 = metadata !{i32 786453, metadata !12, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !4 = metadata !{null}
 !5 = metadata !{i32 786471, i32 0, metadata !1, metadata !"ro", metadata !"ro", metadata !"ro", metadata !1, i32 1, metadata !6, i1 true, i1 true, i32 201, null} ; [ DW_TAG_constant ]
@@ -28,3 +28,4 @@ declare void @bar(i32)
 !11 = metadata !{metadata !5}
 !12 = metadata !{metadata !"/tmp/l.c", metadata !"/Volumes/Lalgate/clean/D"}
 !13 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!14 = metadata !{}
diff --git a/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll b/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
index cdfd9527d00..0c905873dc8 100644
--- a/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
+++ b/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
@@ -19,8 +19,8 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!21}
 
-!0 = metadata !{i32 786449, metadata !20, i32 12, metadata !"clang version 3.0 (trunk)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !12,  metadata !12, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !20, i32 12, metadata !"clang version 3.0 (trunk)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !12,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720942, metadata !6, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @f, null, null, metadata !10, i32 0} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 0] [f]
 !6 = metadata !{i32 720937, metadata !20} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/2011-12-16-BadStructRef.ll b/test/DebugInfo/X86/2011-12-16-BadStructRef.ll
index 5e6a6014d69..8898cf1f305 100644
--- a/test/DebugInfo/X86/2011-12-16-BadStructRef.ll
+++ b/test/DebugInfo/X86/2011-12-16-BadStructRef.ll
@@ -90,7 +90,7 @@ entry:
 !llvm.module.flags = !{!83}
 
 !0 = metadata !{i32 720913, metadata !82, i32 4, metadata !"clang version 3.1 (trunk 146596)", i1 false, metadata !"", i32 0, metadata !1, metadata !3, metadata !27, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !9}
 !5 = metadata !{i32 720898, metadata !82, null, metadata !"bar", i32 9, i64 128, i64 64, i32 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_class_type ] [bar] [line 9, size 128, align 64, offset 0] [def] [from ]
 !6 = metadata !{i32 720937, metadata !82} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/DW_AT_byte_size.ll b/test/DebugInfo/X86/DW_AT_byte_size.ll
index 87e242a0bb1..6884c41b2ae 100644
--- a/test/DebugInfo/X86/DW_AT_byte_size.ll
+++ b/test/DebugInfo/X86/DW_AT_byte_size.ll
@@ -27,7 +27,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!21}
 
 !0 = metadata !{i32 786449, metadata !20, i32 4, metadata !"clang version 3.1 (trunk 150996)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !20, metadata !6, metadata !"foo", metadata !"foo", metadata !"_Z3fooP1A", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (%struct.A*)* @_Z3fooP1A, null, null, metadata !14, i32 3} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !20} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/DW_AT_object_pointer.ll b/test/DebugInfo/X86/DW_AT_object_pointer.ll
index 6e6c3a177ab..5fa96994a8b 100644
--- a/test/DebugInfo/X86/DW_AT_object_pointer.ll
+++ b/test/DebugInfo/X86/DW_AT_object_pointer.ll
@@ -51,7 +51,7 @@ entry:
 !llvm.module.flags = !{!38}
 
 !0 = metadata !{i32 786449, metadata !37, i32 4, metadata !"clang version 3.2 (trunk 163586) (llvm/trunk 163570)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/echristo/debug-tests/bar.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !10, metadata !20}
 !5 = metadata !{i32 786478, metadata !6, metadata !6, metadata !"foo", metadata !"foo", metadata !"_Z3fooi", i32 7, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z3fooi, null, null, metadata !1, i32 7} ; [ DW_TAG_subprogram ] [line 7] [def] [foo]
 !6 = metadata !{i32 786473, metadata !37} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/DW_AT_specification.ll b/test/DebugInfo/X86/DW_AT_specification.ll
index 4d7ef4fd36f..c1e7d9ce386 100644
--- a/test/DebugInfo/X86/DW_AT_specification.ll
+++ b/test/DebugInfo/X86/DW_AT_specification.ll
@@ -19,8 +19,8 @@ entry:
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!28}
 
-!0 = metadata !{i32 786449, metadata !27, i32 4, metadata !"clang version 3.0 ()", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !18,  metadata !18, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !27, i32 4, metadata !"clang version 3.0 ()", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !18,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720942, metadata !6, null, metadata !"bar", metadata !"bar", metadata !"_ZN3foo3barEv", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZN3foo3barEv, null, metadata !11, metadata !16, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [bar]
 !6 = metadata !{i32 720937, metadata !27} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll b/test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll
index dc27dfdc32a..f16cbb061bf 100644
--- a/test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll
+++ b/test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll
@@ -32,7 +32,7 @@ attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"=
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [C:\Projects/test.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"test.c", metadata !"C:\5CProjects"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [C:\Projects/test.c]
diff --git a/test/DebugInfo/X86/DW_TAG_friend.ll b/test/DebugInfo/X86/DW_TAG_friend.ll
index 2da962752a6..2facc409e8d 100644
--- a/test/DebugInfo/X86/DW_TAG_friend.ll
+++ b/test/DebugInfo/X86/DW_TAG_friend.ll
@@ -18,8 +18,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!29}
 
-!0 = metadata !{i32 786449, metadata !28, i32 4, metadata !"clang version 3.1 (trunk 153413) (llvm/trunk 153428)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !28, i32 4, metadata !"clang version 3.1 (trunk 153413) (llvm/trunk 153428)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !17}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 10, metadata !7, i32 0, i32 1, %class.A* @a, null} ; [ DW_TAG_variable ]
 !6 = metadata !{i32 786473, metadata !28} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/aligned_stack_var.ll b/test/DebugInfo/X86/aligned_stack_var.ll
index d733dfda946..54484acc785 100644
--- a/test/DebugInfo/X86/aligned_stack_var.ll
+++ b/test/DebugInfo/X86/aligned_stack_var.ll
@@ -28,7 +28,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!15}
 
 !0 = metadata !{i32 786449, metadata !14, i32 4, metadata !"clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !14, metadata !6, metadata !"run", metadata !"run", metadata !"_Z3runv", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z3runv, null, null, metadata !1, i32 1} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !14} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/arange.ll b/test/DebugInfo/X86/arange.ll
index 819f9863bc7..c797b5de797 100644
--- a/test/DebugInfo/X86/arange.ll
+++ b/test/DebugInfo/X86/arange.ll
@@ -31,7 +31,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !2, metadata !9, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/simple.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"simple.cpp", metadata !"/tmp/dbginfo"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"foo<&i>", i32 3, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, metadata !5, metadata !"_ZTS3fooIXadL_Z1iEEE"} ; [ DW_TAG_structure_type ] [foo<&i>] [line 3, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !6}
diff --git a/test/DebugInfo/X86/arguments.ll b/test/DebugInfo/X86/arguments.ll
index 1d51049a5f6..67352845571 100644
--- a/test/DebugInfo/X86/arguments.ll
+++ b/test/DebugInfo/X86/arguments.ll
@@ -48,7 +48,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/scratch.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"scratch.cpp", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func", metadata !"func", metadata !"_Z4func3fooS_", i32 6, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.foo*, %struct.foo*)* @_Z4func3fooS_, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [func]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/scratch.cpp]
diff --git a/test/DebugInfo/X86/block-capture.ll b/test/DebugInfo/X86/block-capture.ll
index aa4be76eee1..9f4c391c242 100644
--- a/test/DebugInfo/X86/block-capture.ll
+++ b/test/DebugInfo/X86/block-capture.ll
@@ -70,7 +70,7 @@ declare i32 @__objc_personality_v0(...)
 !llvm.module.flags = !{!35, !36, !37, !38, !64}
 
 !0 = metadata !{i32 786449, metadata !63, i32 16, metadata !"clang version 3.1 (trunk 151227)", i1 false, metadata !"", i32 2, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !28, metadata !31, metadata !34}
 !5 = metadata !{i32 786478, metadata !6, metadata !6, metadata !"foo", metadata !"foo", metadata !"", i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, null, null, null, metadata !26, i32 5} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !63} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/byvalstruct.ll b/test/DebugInfo/X86/byvalstruct.ll
index 3dea8632a70..731f8dbc672 100644
--- a/test/DebugInfo/X86/byvalstruct.ll
+++ b/test/DebugInfo/X86/byvalstruct.ll
@@ -88,7 +88,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 17, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 2, metadata !2, metadata !3, metadata !6, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/t.mm] [DW_LANG_ObjC_plus_plus]
 !1 = metadata !{metadata !"t.mm", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !1, metadata !5, metadata !"Bitmap", i32 8, i64 8, i64 8, i32 0, i32 512, null, metadata !2, i32 17, null, null, null} ; [ DW_TAG_structure_type ] [Bitmap] [line 8, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/t.mm]
diff --git a/test/DebugInfo/X86/c-type-units.ll b/test/DebugInfo/X86/c-type-units.ll
index 0d0ff0e0883..431b0295148 100644
--- a/test/DebugInfo/X86/c-type-units.ll
+++ b/test/DebugInfo/X86/c-type-units.ll
@@ -19,7 +19,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/simple.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"simple.c", metadata !"/tmp/dbginfo"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"f", metadata !"f", metadata !"", metadata !5, i32 2, metadata !6, i32 0, i32 1, %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 2] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/dbginfo/simple.c]
diff --git a/test/DebugInfo/X86/coff_debug_info_type.ll b/test/DebugInfo/X86/coff_debug_info_type.ll
index 2d63f58e4e6..e61c8076b60 100644
--- a/test/DebugInfo/X86/coff_debug_info_type.ll
+++ b/test/DebugInfo/X86/coff_debug_info_type.ll
@@ -27,7 +27,7 @@ attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"=
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [C:\Projects/test.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"test.c", metadata !"C:\5CProjects"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [C:\Projects/test.c]
diff --git a/test/DebugInfo/X86/coff_relative_names.ll b/test/DebugInfo/X86/coff_relative_names.ll
index e5a54460634..3b4854e733d 100644
--- a/test/DebugInfo/X86/coff_relative_names.ll
+++ b/test/DebugInfo/X86/coff_relative_names.ll
@@ -25,7 +25,7 @@ attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"=
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [C:\Projects/test.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"test.c", metadata !"C:\5CProjects"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [C:\Projects/test.c]
diff --git a/test/DebugInfo/X86/concrete_out_of_line.ll b/test/DebugInfo/X86/concrete_out_of_line.ll
index 4a152963a14..381b7b09ffe 100644
--- a/test/DebugInfo/X86/concrete_out_of_line.ll
+++ b/test/DebugInfo/X86/concrete_out_of_line.ll
@@ -35,8 +35,8 @@ declare void @_Z8moz_freePv(i8*)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!60}
 
-!0 = metadata !{i32 786449, metadata !59, i32 4, metadata !"clang version 3.1 ()", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !47,  metadata !47, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !59, i32 4, metadata !"clang version 3.1 ()", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !47,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !23, metadata !27, metadata !31}
 !5 = metadata !{i32 720942, metadata !6, null, metadata !"Release", metadata !"Release", metadata !"_ZN17nsAutoRefCnt7ReleaseEv", i32 14, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32* null, null, metadata !12, metadata !20, i32 14} ; [ DW_TAG_subprogram ] [line 14] [def] [Release]
 !6 = metadata !{i32 720937, metadata !59} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/cu-ranges-odr.ll b/test/DebugInfo/X86/cu-ranges-odr.ll
index c641a5597f7..209f55fe001 100644
--- a/test/DebugInfo/X86/cu-ranges-odr.ll
+++ b/test/DebugInfo/X86/cu-ranges-odr.ll
@@ -63,7 +63,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 (trunk 199923) (llvm/trunk 199940)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !13, metadata !21, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/baz.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"baz.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786434, metadata !1, null, metadata !"A", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !8}
diff --git a/test/DebugInfo/X86/cu-ranges.ll b/test/DebugInfo/X86/cu-ranges.ll
index e582ea73324..59e8d6bed5a 100644
--- a/test/DebugInfo/X86/cu-ranges.ll
+++ b/test/DebugInfo/X86/cu-ranges.ll
@@ -42,7 +42,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 (trunk 199256) (llvm/trunk 199254)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/foo.c]
diff --git a/test/DebugInfo/X86/data_member_location.ll b/test/DebugInfo/X86/data_member_location.ll
index bec0eaa4068..1c76258ec20 100644
--- a/test/DebugInfo/X86/data_member_location.ll
+++ b/test/DebugInfo/X86/data_member_location.ll
@@ -36,7 +36,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !2, metadata !10, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/data_member_location.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"data_member_location.cpp", metadata !"/tmp/dbginfo"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"foo", i32 1, i64 64, i64 32, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 64, align 32, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !8}
diff --git a/test/DebugInfo/X86/dbg-declare.ll b/test/DebugInfo/X86/dbg-declare.ll
index 988d0bcb771..8bb574ec998 100644
--- a/test/DebugInfo/X86/dbg-declare.ll
+++ b/test/DebugInfo/X86/dbg-declare.ll
@@ -31,7 +31,7 @@ declare void @llvm.stackrestore(i8*) nounwind
 !llvm.module.flags = !{!27}
 
 !0 = metadata !{i32 786449, metadata !26, i32 12, metadata !"clang version 3.1 (trunk 153698)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, null, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !26, metadata !0, metadata !"foo", metadata !"foo", metadata !"", i32 6, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32*)* @foo, null, null, metadata !12, i32 0} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !26} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/dbg-subrange.ll b/test/DebugInfo/X86/dbg-subrange.ll
index 5bf330c9b9d..f253caca9a8 100644
--- a/test/DebugInfo/X86/dbg-subrange.ll
+++ b/test/DebugInfo/X86/dbg-subrange.ll
@@ -15,8 +15,8 @@ entry:
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!22}
 
-!0 = metadata !{i32 786449, metadata !21, i32 12, metadata !"clang version 3.1 (trunk 144833)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !11,  metadata !11, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !21, i32 12, metadata !"clang version 3.1 (trunk 144833)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !11,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720942, metadata !21, metadata !6, metadata !"bar", metadata !"bar", metadata !"", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @bar, null, null, metadata !9, i32 0} ; [ DW_TAG_subprogram ] [line 4] [def] [scope 0] [bar]
 !6 = metadata !{i32 720937, metadata !21} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/dbg-value-inlined-parameter.ll b/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
index 1a78772e2e3..c2fdfc089a5 100644
--- a/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
+++ b/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
@@ -51,7 +51,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 
 !0 = metadata !{i32 786478, metadata !1, metadata !1, metadata !"foo", metadata !"foo", metadata !"", i32 8, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (%struct.S1*, i32)* @foo, null, null, metadata !41, i32 8} ; [ DW_TAG_subprogram ] [line 8] [def] [foo]
 !1 = metadata !{i32 786473, metadata !42} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 786449, metadata !42, i32 12, metadata !"clang version 2.9 (trunk 125693)", i1 true, metadata !"", i32 0, metadata !8, metadata !8, metadata !39, metadata !40,  metadata !40, null} ; [ DW_TAG_compile_unit ]
+!2 = metadata !{i32 786449, metadata !42, i32 12, metadata !"clang version 2.9 (trunk 125693)", i1 true, metadata !"", i32 0, metadata !8, metadata !8, metadata !39, metadata !40,  metadata !44, null} ; [ DW_TAG_compile_unit ]
 !3 = metadata !{i32 786453, metadata !42, metadata !1, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !4 = metadata !{metadata !5}
 !5 = metadata !{i32 786468, null, metadata !2, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
@@ -89,3 +89,4 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !41 = metadata !{metadata !9, metadata !18}
 !42 = metadata !{metadata !"nm2.c", metadata !"/private/tmp"}
 !43 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!44 = metadata !{}
diff --git a/test/DebugInfo/X86/dbg_value_direct.ll b/test/DebugInfo/X86/dbg_value_direct.ll
index 8a22cd7cca0..28b7dc6b9b2 100644
--- a/test/DebugInfo/X86/dbg_value_direct.ll
+++ b/test/DebugInfo/X86/dbg_value_direct.ll
@@ -149,7 +149,7 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/crash.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"crash.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func", metadata !"func", metadata !"_Z4funci", i32 6, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.A*, i32)* @_Z4funci, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [func]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/crash.cpp]
diff --git a/test/DebugInfo/X86/debug-info-block-captured-self.ll b/test/DebugInfo/X86/debug-info-block-captured-self.ll
index 6e4d2007a97..87e8f03d267 100644
--- a/test/DebugInfo/X86/debug-info-block-captured-self.ll
+++ b/test/DebugInfo/X86/debug-info-block-captured-self.ll
@@ -83,7 +83,7 @@ define internal void @"__24-[Main initWithContext:]_block_invoke_2"(i8* %.block_
 !2 = metadata !{metadata !3}
 !3 = metadata !{i32 786436, metadata !107, null, metadata !"", i32 20, i64 32, i64 32, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [line 20, size 32, align 32, offset 0] [def] [from ]
 !4 = metadata !{}
-!15 = metadata !{i32 0}
+!15 = metadata !{}
 !23 = metadata !{metadata !38, metadata !42}
 !27 = metadata !{i32 786454, metadata !107, null, metadata !"id", i32 31, i64 0, i64 0, i64 0, i32 0, metadata !28} ; [ DW_TAG_typedef ] [id] [line 31, size 0, align 0, offset 0] [from ]
 !28 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !29} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from objc_object]
diff --git a/test/DebugInfo/X86/debug-info-blocks.ll b/test/DebugInfo/X86/debug-info-blocks.ll
index c3bedf2b264..9daeceeb779 100644
--- a/test/DebugInfo/X86/debug-info-blocks.ll
+++ b/test/DebugInfo/X86/debug-info-blocks.ll
@@ -264,7 +264,7 @@ attributes #3 = { nounwind }
 
 !0 = metadata !{i32 786449, metadata !1, i32 16, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 2, metadata !2, metadata !3, metadata !12, metadata !2,  metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [llvm/tools/clang/test/CodeGenObjC/<unknown>] [DW_LANG_ObjC]
 !1 = metadata !{metadata !"llvm/tools/clang/test/CodeGenObjC/<unknown>", metadata !"llvm/_build.ninja.Debug"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, metadata !6, metadata !"A", i32 33, i64 32, i64 32, i32 0, i32 512, null, metadata !7, i32 16, null, null, null} ; [ DW_TAG_structure_type ] [A] [line 33, size 32, align 32, offset 0] [def] [from ]
 !5 = metadata !{metadata !"llvm/tools/clang/test/CodeGenObjC/debug-info-blocks.m", metadata !"llvm/_build.ninja.Debug"}
diff --git a/test/DebugInfo/X86/debug-info-static-member.ll b/test/DebugInfo/X86/debug-info-static-member.ll
index 1792bb4783b..adf8ff09b6d 100644
--- a/test/DebugInfo/X86/debug-info-static-member.ll
+++ b/test/DebugInfo/X86/debug-info-static-member.ll
@@ -59,8 +59,8 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!34}
 
-!0 = metadata !{i32 786449, metadata !33, i32 4, metadata !"clang version 3.3 (trunk 171914)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !10,  metadata !10, metadata !""} ; [ DW_TAG_compile_unit ] [/home/probinson/projects/upstream/static-member/test/debug-info-static-member.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !33, i32 4, metadata !"clang version 3.3 (trunk 171914)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !10,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/probinson/projects/upstream/static-member/test/debug-info-static-member.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !33, metadata !6, metadata !"main", metadata !"main", metadata !"", i32 18, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !1, i32 23} ; [ DW_TAG_subprogram ] [line 18] [def] [scope 23] [main]
 !6 = metadata !{i32 786473, metadata !33} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll b/test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll
index 42a57bfed72..29af6b215a4 100644
--- a/test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll
+++ b/test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll
@@ -62,7 +62,7 @@ attributes #2 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (191881)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !17, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/debug_ranges/a.cc] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tmp/debug_ranges/a.cc", metadata !"/"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !11, metadata !14}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"_Z3fooi", i32 2, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @_Z3fooi, null, null, metadata !9, i32 2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/debug_ranges/a.cc]
diff --git a/test/DebugInfo/X86/dwarf-aranges.ll b/test/DebugInfo/X86/dwarf-aranges.ll
index 66976c625f6..b44a84a85a9 100644
--- a/test/DebugInfo/X86/dwarf-aranges.ll
+++ b/test/DebugInfo/X86/dwarf-aranges.ll
@@ -67,7 +67,7 @@ entry:
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !8, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/home/kayamon/test.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"test.c", metadata !"/home/kayamon"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"some_code", metadata !"some_code", metadata !"", i32 5, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @some_code, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 6] [some_code]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/home/kayamon/test.c]
diff --git a/test/DebugInfo/X86/dwarf-public-names.ll b/test/DebugInfo/X86/dwarf-public-names.ll
index 43e5af469e0..d870ccb5db0 100644
--- a/test/DebugInfo/X86/dwarf-public-names.ll
+++ b/test/DebugInfo/X86/dwarf-public-names.ll
@@ -91,8 +91,8 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!38}
 
-!0 = metadata !{i32 786449, metadata !37, i32 4, metadata !"clang version 3.3 (http://llvm.org/git/clang.git a09cd8103a6a719cb2628cdf0c91682250a17bd2) (http://llvm.org/git/llvm.git 47d03cec0afca0c01ae42b82916d1d731716cd20)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !2, metadata !24,  metadata !24, metadata !""} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/dwarf-public-names.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !37, i32 4, metadata !"clang version 3.3 (http://llvm.org/git/clang.git a09cd8103a6a719cb2628cdf0c91682250a17bd2) (http://llvm.org/git/llvm.git 47d03cec0afca0c01ae42b82916d1d731716cd20)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !2, metadata !24,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/dwarf-public-names.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !2 = metadata !{metadata !3, metadata !18, metadata !19, metadata !20}
 !3 = metadata !{i32 786478, metadata !4, null, metadata !"member_function", metadata !"member_function", metadata !"_ZN1C15member_functionEv", i32 9, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.C*)* @_ZN1C15member_functionEv, null, metadata !12, metadata !1, i32 9} ; [ DW_TAG_subprogram ] [line 9] [def] [member_function]
 !4 = metadata !{i32 786473, metadata !37} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/dwarf-pubnames-split.ll b/test/DebugInfo/X86/dwarf-pubnames-split.ll
index 131e5aae51f..683aac5ef02 100644
--- a/test/DebugInfo/X86/dwarf-pubnames-split.ll
+++ b/test/DebugInfo/X86/dwarf-pubnames-split.ll
@@ -26,7 +26,7 @@ attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointe
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 189287) (llvm/trunk 189296)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/foo.c]
diff --git a/test/DebugInfo/X86/elf-names.ll b/test/DebugInfo/X86/elf-names.ll
index 7b38fde5d34..7eef2deaa50 100644
--- a/test/DebugInfo/X86/elf-names.ll
+++ b/test/DebugInfo/X86/elf-names.ll
@@ -63,7 +63,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.module.flags = !{!54}
 
 !0 = metadata !{i32 786449, metadata !53, i32 4, metadata !"clang version 3.2 (trunk 167506) (llvm/trunk 167505)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/foo.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !31}
 !5 = metadata !{i32 786478, metadata !6, null, metadata !"D", metadata !"D", metadata !"_ZN1DC2Ev", i32 12, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (%class.D*)* @_ZN1DC2Ev, null, metadata !17, metadata !27, i32 12} ; [ DW_TAG_subprogram ] [line 12] [def] [D]
 !6 = metadata !{i32 786473, metadata !53} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/empty-and-one-elem-array.ll b/test/DebugInfo/X86/empty-and-one-elem-array.ll
index a3a08f0e3b9..f5c37df1e5e 100644
--- a/test/DebugInfo/X86/empty-and-one-elem-array.ll
+++ b/test/DebugInfo/X86/empty-and-one-elem-array.ll
@@ -67,7 +67,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!33}
 
 !0 = metadata !{i32 786449, metadata !32, i32 12, metadata !"clang version 3.3 (trunk 169136)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/test.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !6, metadata !6, metadata !"func", metadata !"func", metadata !"", i32 11, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @func, null, null, metadata !1, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [func]
 !6 = metadata !{i32 786473, metadata !32} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/empty-array.ll b/test/DebugInfo/X86/empty-array.ll
index 24364676f8a..461b9da3add 100644
--- a/test/DebugInfo/X86/empty-array.ll
+++ b/test/DebugInfo/X86/empty-array.ll
@@ -27,8 +27,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!21}
 
-!0 = metadata !{i32 786449, metadata !20, i32 4, metadata !"clang version 3.3 (trunk 169136)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/t.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !20, i32 4, metadata !"clang version 3.3 (trunk 169136)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/t.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, %class.A* @a, null} ; [ DW_TAG_variable ] [a] [line 1] [def]
 !6 = metadata !{i32 786473, metadata !20} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/ending-run.ll b/test/DebugInfo/X86/ending-run.ll
index ae17fd0c0ae..c18af8ac7f5 100644
--- a/test/DebugInfo/X86/ending-run.ll
+++ b/test/DebugInfo/X86/ending-run.ll
@@ -30,7 +30,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!20}
 
 !0 = metadata !{i32 786449, metadata !19, i32 12, metadata !"clang version 3.1 (trunk 153921) (llvm/trunk 153916)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !19, metadata !6, metadata !"callee", metadata !"callee", metadata !"", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 (i32)* @callee, null, null, metadata !10, i32 7} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !19} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/enum-class.ll b/test/DebugInfo/X86/enum-class.ll
index a31e254c24c..23ffbcc8f78 100644
--- a/test/DebugInfo/X86/enum-class.ll
+++ b/test/DebugInfo/X86/enum-class.ll
@@ -8,7 +8,7 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!23}
 
-!0 = metadata !{i32 786449, metadata !22, i32 4, metadata !"clang version 3.2 (trunk 157269) (llvm/trunk 157264)", i1 false, metadata !"", i32 0, metadata !1, metadata !15, metadata !15, metadata !17,  metadata !17, metadata !""} ; [ DW_TAG_compile_unit ]
+!0 = metadata !{i32 786449, metadata !22, i32 4, metadata !"clang version 3.2 (trunk 157269) (llvm/trunk 157264)", i1 false, metadata !"", i32 0, metadata !1, metadata !15, metadata !15, metadata !17,  metadata !15, metadata !""} ; [ DW_TAG_compile_unit ]
 !1 = metadata !{metadata !3, metadata !8, metadata !12}
 !3 = metadata !{i32 786436, metadata !4, null, metadata !"A", i32 1, i64 32, i64 32, i32 0, i32 0, metadata !5, metadata !6, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from int]
 !4 = metadata !{i32 786473, metadata !22} ; [ DW_TAG_file_type ]
@@ -22,7 +22,7 @@
 !12 = metadata !{i32 786436, metadata !4, null, metadata !"C", i32 3, i64 32, i64 32, i32 0, i32 0, null, metadata !13, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [C] [line 3, size 32, align 32, offset 0] [def] [from ]
 !13 = metadata !{metadata !14}
 !14 = metadata !{i32 786472, metadata !"C1", i64 1} ; [ DW_TAG_enumerator ]
-!15 = metadata !{i32 0}
+!15 = metadata !{}
 !17 = metadata !{metadata !19, metadata !20, metadata !21}
 !19 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !4, i32 4, metadata !3, i32 0, i32 1, i32* @a, null} ; [ DW_TAG_variable ]
 !20 = metadata !{i32 786484, i32 0, null, metadata !"b", metadata !"b", metadata !"", metadata !4, i32 5, metadata !8, i32 0, i32 1, i64* @b, null} ; [ DW_TAG_variable ]
diff --git a/test/DebugInfo/X86/enum-fwd-decl.ll b/test/DebugInfo/X86/enum-fwd-decl.ll
index 6bfb930cb6e..adb962ea527 100644
--- a/test/DebugInfo/X86/enum-fwd-decl.ll
+++ b/test/DebugInfo/X86/enum-fwd-decl.ll
@@ -6,8 +6,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!9}
 
-!0 = metadata !{i32 786449, metadata !8, i32 4, metadata !"clang version 3.2 (trunk 165274) (llvm/trunk 165272)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/foo.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !8, i32 4, metadata !"clang version 3.2 (trunk 165274) (llvm/trunk 165272)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/foo.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"e", metadata !"e", metadata !"", metadata !6, i32 2, metadata !7, i32 0, i32 1, i16* @e, null} ; [ DW_TAG_variable ] [e] [line 2] [def]
 !6 = metadata !{i32 786473, metadata !8} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/fission-cu.ll b/test/DebugInfo/X86/fission-cu.ll
index 1af7f97b317..85f007d71d4 100644
--- a/test/DebugInfo/X86/fission-cu.ll
+++ b/test/DebugInfo/X86/fission-cu.ll
@@ -7,8 +7,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!9}
 
-!0 = metadata !{i32 786449, metadata !8, i32 12, metadata !"clang version 3.3 (trunk 169021) (llvm/trunk 169020)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !"baz.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/baz.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !8, i32 12, metadata !"clang version 3.3 (trunk 169021) (llvm/trunk 169020)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !"baz.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/baz.c] [DW_LANG_C99]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, i32* @a, null} ; [ DW_TAG_variable ] [a] [line 1] [def]
 !6 = metadata !{i32 786473, metadata !8} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/fission-hash.ll b/test/DebugInfo/X86/fission-hash.ll
index d3e46a9c4ff..ff6cf26db3b 100644
--- a/test/DebugInfo/X86/fission-hash.ll
+++ b/test/DebugInfo/X86/fission-hash.ll
@@ -11,6 +11,6 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 188230) (llvm/trunk 188234)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, metadata !2, metadata !"foo.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
 !4 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/DebugInfo/X86/fission-ranges.ll b/test/DebugInfo/X86/fission-ranges.ll
index 37d7c3d2a37..6a2bb487a75 100644
--- a/test/DebugInfo/X86/fission-ranges.ll
+++ b/test/DebugInfo/X86/fission-ranges.ll
@@ -44,7 +44,7 @@ entry:
 define internal fastcc void @foo() #0 {
 entry:
   tail call void @llvm.dbg.value(metadata !29, i64 0, metadata !13), !dbg !30
-  tail call void @llvm.dbg.value(metadata !2, i64 0, metadata !14), !dbg !31
+  tail call void @llvm.dbg.value(metadata !44, i64 0, metadata !14), !dbg !31
   %c.promoted9 = load i32* @c, align 4, !dbg !32, !tbaa !33
   br label %for.cond1.preheader, !dbg !31
 
@@ -107,7 +107,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 191700) (llvm/trunk 191710)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"small.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/small.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"small.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !8}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"", i32 18, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, void ()* @bar, null, null, metadata !2, i32 19} ; [ DW_TAG_subprogram ] [line 18] [def] [scope 19] [bar]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/small.c]
@@ -149,3 +149,4 @@ attributes #1 = { nounwind readnone }
 !41 = metadata !{i32* @c}
 !42 = metadata !{i32 15, i32 0, metadata !8, null}
 !43 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!44 = metadata !{i32 0}
diff --git a/test/DebugInfo/X86/generate-odr-hash.ll b/test/DebugInfo/X86/generate-odr-hash.ll
index 74c1699ef8b..ca9f6e11d0a 100644
--- a/test/DebugInfo/X86/generate-odr-hash.ll
+++ b/test/DebugInfo/X86/generate-odr-hash.ll
@@ -205,7 +205,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !20, metadata !37, metadata !2, metadata !"bar.dwo"} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/bar.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"bar.cpp", metadata !"/tmp/dbginfo"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !5, metadata !13, metadata !16}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"bar", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, null, metadata !"_ZTS3bar"} ; [ DW_TAG_structure_type ] [bar] [line 1, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{i32 786434, metadata !1, metadata !6, metadata !"fluffy", i32 13, i64 64, i64 32, i32 0, i32 0, null, metadata !9, i32 0, null, null, metadata !"_ZTSN7echidna8capybara8mongoose6fluffyE"} ; [ DW_TAG_class_type ] [fluffy] [line 13, size 64, align 32, offset 0] [def] [from ]
diff --git a/test/DebugInfo/X86/gnu-public-names-empty.ll b/test/DebugInfo/X86/gnu-public-names-empty.ll
index 8b0309cc65b..8ee77a6d998 100644
--- a/test/DebugInfo/X86/gnu-public-names-empty.ll
+++ b/test/DebugInfo/X86/gnu-public-names-empty.ll
@@ -14,6 +14,6 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 191846) (llvm/trunk 191866)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
 !4 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/test/DebugInfo/X86/gnu-public-names.ll b/test/DebugInfo/X86/gnu-public-names.ll
index 856973ab338..b8997822938 100644
--- a/test/DebugInfo/X86/gnu-public-names.ll
+++ b/test/DebugInfo/X86/gnu-public-names.ll
@@ -256,7 +256,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 192862) (llvm/trunk 192861)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !21, metadata !29, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/pubnames.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"pubnames.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !17}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"C", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 1, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !8, metadata !13}
diff --git a/test/DebugInfo/X86/line-info.ll b/test/DebugInfo/X86/line-info.ll
index 46daccfe841..149ecc1e202 100644
--- a/test/DebugInfo/X86/line-info.ll
+++ b/test/DebugInfo/X86/line-info.ll
@@ -40,7 +40,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2,  metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/list0.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"list0.c", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !10}
 !4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
 !5 = metadata !{metadata !"./list0.h", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
diff --git a/test/DebugInfo/X86/linkage-name.ll b/test/DebugInfo/X86/linkage-name.ll
index 3d116675454..a89869d3696 100644
--- a/test/DebugInfo/X86/linkage-name.ll
+++ b/test/DebugInfo/X86/linkage-name.ll
@@ -27,8 +27,8 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!29}
 
-!0 = metadata !{i32 786449, metadata !28, i32 4, metadata !"clang version 3.1 (trunk 152691) (llvm/trunk 152692)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !18,  metadata !18, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !28, i32 4, metadata !"clang version 3.1 (trunk 152691) (llvm/trunk 152692)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !18,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !6, null, metadata !"a", metadata !"a", metadata !"_ZN1A1aEi", i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (%class.A*, i32)* @_ZN1A1aEi, null, metadata !13, metadata !16, i32 5} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !28} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/low-pc-cu.ll b/test/DebugInfo/X86/low-pc-cu.ll
index 922ae8dfed2..1d354c30d6e 100644
--- a/test/DebugInfo/X86/low-pc-cu.ll
+++ b/test/DebugInfo/X86/low-pc-cu.ll
@@ -16,7 +16,7 @@ entry:
 !llvm.module.flags = !{!16}
 
 !0 = metadata !{i32 786449, metadata !15, i32 4, metadata !"clang version 3.1 (trunk 153454) (llvm/trunk 153471)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !12}
 !5 = metadata !{i32 786478, metadata !6, null, metadata !"q", metadata !"q", metadata !"_Z1qv", i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z1qv, null, null, metadata !10, i32 0} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 0] [q]
 !6 = metadata !{i32 786473, metadata !15} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/misched-dbg-value.ll b/test/DebugInfo/X86/misched-dbg-value.ll
index cfb06672d25..478f221d3ff 100644
--- a/test/DebugInfo/X86/misched-dbg-value.ll
+++ b/test/DebugInfo/X86/misched-dbg-value.ll
@@ -90,7 +90,7 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!83}
 
-!0 = metadata !{i32 786449, metadata !82, i32 12, metadata !"clang version 3.3 (trunk 175015)", i1 true, metadata !"", i32 0, metadata !1, metadata !10, metadata !11, metadata !29,  metadata !29, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/manmanren/test-Nov/rdar_13183203/test2/dry.c] [DW_LANG_C99]
+!0 = metadata !{i32 786449, metadata !82, i32 12, metadata !"clang version 3.3 (trunk 175015)", i1 true, metadata !"", i32 0, metadata !1, metadata !10, metadata !11, metadata !29,  metadata !10, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/manmanren/test-Nov/rdar_13183203/test2/dry.c] [DW_LANG_C99]
 !1 = metadata !{metadata !2}
 !2 = metadata !{i32 786436, metadata !82, null, metadata !"", i32 128, i64 32, i64 32, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [line 128, size 32, align 32, offset 0] [def] [from ]
 !3 = metadata !{i32 786473, metadata !82} ; [ DW_TAG_file_type ]
@@ -100,7 +100,7 @@ attributes #1 = { nounwind readnone }
 !7 = metadata !{i32 786472, metadata !"Ident3", i64 10001} ; [ DW_TAG_enumerator ] [Ident3 :: 10001]
 !8 = metadata !{i32 786472, metadata !"Ident4", i64 10002} ; [ DW_TAG_enumerator ] [Ident4 :: 10002]
 !9 = metadata !{i32 786472, metadata !"Ident5", i64 10003} ; [ DW_TAG_enumerator ] [Ident5 :: 10003]
-!10 = metadata !{i32 0}
+!10 = metadata !{}
 !11 = metadata !{metadata !12}
 !12 = metadata !{i32 786478, metadata !82, metadata !3, metadata !"Proc8", metadata !"Proc8", metadata !"", i32 180, metadata !13, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, void (i32*, [51 x i32]*, i32, i32)* @Proc8, null, null, metadata !22, i32 185} ; [ DW_TAG_subprogram ] [line 180] [def] [scope 185] [Proc8]
 !13 = metadata !{i32 786453, i32 0, null, i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !14, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
diff --git a/test/DebugInfo/X86/multiple-aranges.ll b/test/DebugInfo/X86/multiple-aranges.ll
index 29dce3ca6a1..cd317a96f31 100644
--- a/test/DebugInfo/X86/multiple-aranges.ll
+++ b/test/DebugInfo/X86/multiple-aranges.ll
@@ -46,7 +46,7 @@ target triple = "x86_64-unknown-linux-gnu"
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/home/kayamon/test1.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"test1.c", metadata !"/home/kayamon"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"kittens", metadata !"kittens", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @kittens, null} ; [ DW_TAG_variable ] [kittens] [line 1] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/home/kayamon/test1.c]
diff --git a/test/DebugInfo/X86/multiple-at-const-val.ll b/test/DebugInfo/X86/multiple-at-const-val.ll
index 9a660614827..27a5510f119 100644
--- a/test/DebugInfo/X86/multiple-at-const-val.ll
+++ b/test/DebugInfo/X86/multiple-at-const-val.ll
@@ -32,7 +32,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!1803}
 
-!0 = metadata !{i32 786449, metadata !1802, i32 4, metadata !"clang version 3.3 (trunk 174207)", i1 true, metadata !"", i32 0, metadata !1, metadata !955, metadata !956, metadata !1786,  metadata !1786, metadata !""} ; [ DW_TAG_compile_unit ] [/privite/tmp/student2.cpp] [DW_LANG_C_plus_plus]
+!0 = metadata !{i32 786449, metadata !1802, i32 4, metadata !"clang version 3.3 (trunk 174207)", i1 true, metadata !"", i32 0, metadata !1, metadata !955, metadata !956, metadata !1786,  metadata !955, metadata !""} ; [ DW_TAG_compile_unit ] [/privite/tmp/student2.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !26}
 !4 = metadata !{i32 786489, null, metadata !"std", metadata !5, i32 48} ; [ DW_TAG_namespace ]
 !5 = metadata !{i32 786473, metadata !1801} ; [ DW_TAG_file_type ]
@@ -52,7 +52,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !77 = metadata !{i32 786445, metadata !1801, metadata !49, metadata !"badbit", i32 331, i64 0, i64 0, i64 0, i32 4096, metadata !78, i32 1} ; [ DW_TAG_member ]
 !78 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !79} ; [ DW_TAG_const_type ]
 !79 = metadata !{i32 786454, metadata !1801, metadata !49, metadata !"ostate", i32 327, i64 0, i64 0, i64 0, i32 0, metadata !26} ; [ DW_TAG_typedef ]
-!955 = metadata !{i32 0}
+!955 = metadata !{}
 !956 = metadata !{metadata !960}
 !960 = metadata !{i32 786478, metadata !1802, null, metadata !"main", metadata !"main", metadata !"", i32 73, metadata !54, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @main, null, null, metadata !955, i32 73} ; [ DW_TAG_subprogram ]
 !961 = metadata !{i32 786473, metadata !1802} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/nondefault-subrange-array.ll b/test/DebugInfo/X86/nondefault-subrange-array.ll
index 91065a312b6..b097578a6e2 100644
--- a/test/DebugInfo/X86/nondefault-subrange-array.ll
+++ b/test/DebugInfo/X86/nondefault-subrange-array.ll
@@ -30,8 +30,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!21}
 
-!0 = metadata !{i32 786449, metadata !20, i32 4, metadata !"clang version 3.3 (trunk 169136)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/t.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !20, i32 4, metadata !"clang version 3.3 (trunk 169136)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/t.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, %class.A* @a, null} ; [ DW_TAG_variable ] [a] [line 1] [def]
 !6 = metadata !{i32 786473, metadata !20} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/objc-fwd-decl.ll b/test/DebugInfo/X86/objc-fwd-decl.ll
index a5e9632d117..1ec56be81a4 100644
--- a/test/DebugInfo/X86/objc-fwd-decl.ll
+++ b/test/DebugInfo/X86/objc-fwd-decl.ll
@@ -12,8 +12,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!9, !10, !11, !12, !14}
 
-!0 = metadata !{i32 786449, metadata !13, i32 16, metadata !"clang version 3.1 (trunk 152054 trunk 152094)", i1 false, metadata !"", i32 2, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !13, i32 16, metadata !"clang version 3.1 (trunk 152054 trunk 152094)", i1 false, metadata !"", i32 2, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 3, metadata !7, i32 0, i32 1, %0** @a, null} ; [ DW_TAG_variable ]
 !6 = metadata !{i32 786473, metadata !13} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/objc-property-void.ll b/test/DebugInfo/X86/objc-property-void.ll
index 5e9adf5c124..d366a7acf4e 100644
--- a/test/DebugInfo/X86/objc-property-void.ll
+++ b/test/DebugInfo/X86/objc-property-void.ll
@@ -74,7 +74,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 16, metadata !"", i1 false, metadata !"", i32 2, metadata !2, metadata !3, metadata !9, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [] [DW_LANG_ObjC]
 !1 = metadata !{metadata !"-", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, metadata !6, metadata !"Foo", i32 1, i64 0, i64 8, i32 0, i32 512, null, metadata !7, i32 16, null, null, null} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !"<stdin>", metadata !""}
diff --git a/test/DebugInfo/X86/op_deref.ll b/test/DebugInfo/X86/op_deref.ll
index bd0758ff75f..810ebbc09ab 100644
--- a/test/DebugInfo/X86/op_deref.ll
+++ b/test/DebugInfo/X86/op_deref.ll
@@ -75,7 +75,7 @@ declare void @llvm.stackrestore(i8*) nounwind
 !llvm.module.flags = !{!29}
 
 !0 = metadata !{i32 786449, metadata !28, i32 12, metadata !"clang version 3.2 (trunk 156005) (llvm/trunk 156000)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !28, metadata !6, metadata !"testVLAwithSize", metadata !"testVLAwithSize", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32)* @testVLAwithSize, null, null, metadata !1, i32 2} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !28} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/parameters.ll b/test/DebugInfo/X86/parameters.ll
index fa91bd27ae2..8248cf63c4e 100644
--- a/test/DebugInfo/X86/parameters.ll
+++ b/test/DebugInfo/X86/parameters.ll
@@ -82,7 +82,7 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/pass.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"pass.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !17}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func", metadata !"func", metadata !"_ZN7pr147634funcENS_3fooE", i32 6, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%"struct.pr14763::foo"*, %"struct.pr14763::foo"*)* @_ZN7pr147634funcENS_3fooE, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [func]
 !5 = metadata !{i32 786489, metadata !1, null, metadata !"pr14763", i32 1} ; [ DW_TAG_namespace ] [pr14763] [line 1]
diff --git a/test/DebugInfo/X86/pointer-type-size.ll b/test/DebugInfo/X86/pointer-type-size.ll
index cf789b20234..40dc955ab52 100644
--- a/test/DebugInfo/X86/pointer-type-size.ll
+++ b/test/DebugInfo/X86/pointer-type-size.ll
@@ -11,8 +11,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!14}
 
-!0 = metadata !{i32 786449, metadata !13, i32 12, metadata !"clang version 3.1 (trunk 147882)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !13, i32 12, metadata !"clang version 3.1 (trunk 147882)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720948, i32 0, null, metadata !"crass", metadata !"crass", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, %struct.crass* @crass, null} ; [ DW_TAG_variable ]
 !6 = metadata !{i32 720937, metadata !13} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/pr11300.ll b/test/DebugInfo/X86/pr11300.ll
index caa24eeb8f6..19032fa4626 100644
--- a/test/DebugInfo/X86/pr11300.ll
+++ b/test/DebugInfo/X86/pr11300.ll
@@ -36,7 +36,7 @@ entry:
 !llvm.module.flags = !{!33}
 
 !0 = metadata !{i32 786449, metadata !32, i32 4, metadata !"clang version 3.0 ()", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !20}
 !5 = metadata !{i32 720942, metadata !6, metadata !6, metadata !"zed", metadata !"zed", metadata !"_Z3zedP3foo", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.foo*)* @_Z3zedP3foo, null, null, metadata !21, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [zed]
 !6 = metadata !{i32 720937, metadata !32} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/pr13303.ll b/test/DebugInfo/X86/pr13303.ll
index 473786216e2..16e5966f84d 100644
--- a/test/DebugInfo/X86/pr13303.ll
+++ b/test/DebugInfo/X86/pr13303.ll
@@ -16,7 +16,7 @@ entry:
 !llvm.module.flags = !{!13}
 
 !0 = metadata !{i32 786449, metadata !12, i32 12, metadata !"clang version 3.2 (trunk 160143)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/probinson/PR13303.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !12, metadata !6, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !1, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [main]
 !6 = metadata !{i32 786473, metadata !12} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/prologue-stack.ll b/test/DebugInfo/X86/prologue-stack.ll
index b37e41ac8c9..a5bae841fa3 100644
--- a/test/DebugInfo/X86/prologue-stack.ll
+++ b/test/DebugInfo/X86/prologue-stack.ll
@@ -22,7 +22,7 @@ declare i32 @callme(i32)
 !llvm.module.flags = !{!14}
 
 !0 = metadata !{i32 786449, metadata !13, i32 12, metadata !"clang version 3.2 (trunk 164980) (llvm/trunk 164979)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/bar.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !13, metadata !6, metadata !"isel_line_test2", metadata !"isel_line_test2", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @isel_line_test2, null, null, metadata !1, i32 4} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 4] [isel_line_test2]
 !6 = metadata !{i32 786473, metadata !13} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/ref_addr_relocation.ll b/test/DebugInfo/X86/ref_addr_relocation.ll
index fc5197d78eb..76e6aa6777e 100644
--- a/test/DebugInfo/X86/ref_addr_relocation.ll
+++ b/test/DebugInfo/X86/ref_addr_relocation.ll
@@ -55,7 +55,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 191799)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !2, metadata !6, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/manmanren/test-Nov/type_unique_air/ref_addr/tu1.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tu1.cpp", metadata !"/Users/manmanren/test-Nov/type_unique_air/ref_addr"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, null, metadata !"foo", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./hdr.h", metadata !"/Users/manmanren/test-Nov/type_unique_air/ref_addr"}
diff --git a/test/DebugInfo/X86/reference-argument.ll b/test/DebugInfo/X86/reference-argument.ll
index be54386a426..4a6bdca550f 100644
--- a/test/DebugInfo/X86/reference-argument.ll
+++ b/test/DebugInfo/X86/reference-argument.ll
@@ -34,7 +34,7 @@ declare void @_ZN4SValD2Ev(%class.SVal* %this)
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [aggregate-indirect-arg.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"aggregate-indirect-arg.cpp", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !29, metadata !33, metadata !34, metadata !35}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"_Z3barR4SVal", i32 19, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%class.SVal*)* @_Z3barR4SVal, null, null, metadata !2, i32 19} ; [ DW_TAG_subprogram ] [line 19] [def] [bar]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [aggregate-indirect-arg.cpp]
diff --git a/test/DebugInfo/X86/rvalue-ref.ll b/test/DebugInfo/X86/rvalue-ref.ll
index e9ea42718c8..b8ed0218568 100644
--- a/test/DebugInfo/X86/rvalue-ref.ll
+++ b/test/DebugInfo/X86/rvalue-ref.ll
@@ -24,7 +24,7 @@ declare i32 @printf(i8*, ...)
 !llvm.module.flags = !{!17}
 
 !0 = metadata !{i32 786449, metadata !16, i32 4, metadata !"clang version 3.2 (trunk 157054) (llvm/trunk 157060)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !16, metadata !6, metadata !"foo", metadata !"foo", metadata !"_Z3fooOi", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32*)* @_Z3fooOi, null, null, metadata !1, i32 5} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !16} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll b/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
index 4e14e6099a1..71cddbdb7a7 100644
--- a/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
+++ b/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
@@ -74,7 +74,7 @@ entry:
 !llvm.dbg.cu = !{!0, !10}
 !llvm.module.flags = !{!25}
 !0 = metadata !{i32 786449, metadata !23, i32 12, metadata !"clang version 3.3", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !23, metadata !6, metadata !"test", metadata !"test", metadata !"", i32 2, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @test, null, null, metadata !1, i32 3} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [test]
 !6 = metadata !{i32 786473, metadata !23} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/stringpool.ll b/test/DebugInfo/X86/stringpool.ll
index fccac2618cf..846d2101e59 100644
--- a/test/DebugInfo/X86/stringpool.ll
+++ b/test/DebugInfo/X86/stringpool.ll
@@ -6,8 +6,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!9}
 
-!0 = metadata !{i32 786449, metadata !8, i32 12, metadata !"clang version 3.1 (trunk 143009)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !8, i32 12, metadata !"clang version 3.1 (trunk 143009)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 720948, i32 0, null, metadata !"yyyy", metadata !"yyyy", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, i32* @yyyy, null} ; [ DW_TAG_variable ]
 !6 = metadata !{i32 720937, metadata !8} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/struct-loc.ll b/test/DebugInfo/X86/struct-loc.ll
index 95bdd41fb06..390d8da5d0a 100644
--- a/test/DebugInfo/X86/struct-loc.ll
+++ b/test/DebugInfo/X86/struct-loc.ll
@@ -14,8 +14,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!12}
 
-!0 = metadata !{i32 786449, metadata !11, i32 12, metadata !"clang version 3.1 (trunk 152837) (llvm/trunk 152845)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !11, i32 12, metadata !"clang version 3.1 (trunk 152837) (llvm/trunk 152845)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"f", metadata !"f", metadata !"", metadata !6, i32 5, metadata !7, i32 0, i32 1, %struct.foo* @f, null} ; [ DW_TAG_variable ]
 !6 = metadata !{i32 786473, metadata !11} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/subrange-type.ll b/test/DebugInfo/X86/subrange-type.ll
index 05b147765b1..14dca46c64f 100644
--- a/test/DebugInfo/X86/subrange-type.ll
+++ b/test/DebugInfo/X86/subrange-type.ll
@@ -22,7 +22,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !llvm.module.flags = !{!18}
 
 !0 = metadata !{i32 786449, metadata !17, i32 12, metadata !"clang version 3.3 (trunk 171472) (llvm/trunk 171487)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !6, metadata !6, metadata !"main", metadata !"main", metadata !"", i32 2, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !1, i32 3} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [main]
 !6 = metadata !{i32 786473, metadata !17} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/template.ll b/test/DebugInfo/X86/template.ll
index 64a8f7a87d1..38b5f9c3369 100644
--- a/test/DebugInfo/X86/template.ll
+++ b/test/DebugInfo/X86/template.ll
@@ -89,7 +89,7 @@ attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointe
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 192849) (llvm/trunk 192850)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !9, metadata !28, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/bar.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"bar.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !8}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"y_impl<int>", i32 2, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, metadata !5, metadata !"_ZTS6y_implIiE"} ; [ DW_TAG_structure_type ] [y_impl<int>] [line 2, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !6}
diff --git a/test/DebugInfo/X86/tls-fission.ll b/test/DebugInfo/X86/tls-fission.ll
index 8a25aced8b7..ddf9fc1e2f4 100644
--- a/test/DebugInfo/X86/tls-fission.ll
+++ b/test/DebugInfo/X86/tls-fission.ll
@@ -23,7 +23,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !"tls.dwo"} ; [ DW_TAG_compile_unit ] [/tmp/tls.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tls.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/tls.cpp]
diff --git a/test/DebugInfo/X86/tls.ll b/test/DebugInfo/X86/tls.ll
index 7cf630184e2..ed1828b9e8b 100644
--- a/test/DebugInfo/X86/tls.ll
+++ b/test/DebugInfo/X86/tls.ll
@@ -26,7 +26,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/tls.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tls.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/tls.cpp]
diff --git a/test/DebugInfo/X86/union-template.ll b/test/DebugInfo/X86/union-template.ll
index c70ae0798c7..5fdb3494cf9 100644
--- a/test/DebugInfo/X86/union-template.ll
+++ b/test/DebugInfo/X86/union-template.ll
@@ -29,9 +29,9 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!28}
 
-!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.3 (trunk 178499) (llvm/trunk 178472)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !9,  metadata !9, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.cc] [DW_LANG_C_plus_plus]
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.3 (trunk 178499) (llvm/trunk 178472)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !9,  metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.cc] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"foo.cc", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"g", metadata !"g", metadata !"_ZN7PR156371gEf", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (float)* @_ZN7PR156371gEf, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [g]
 !5 = metadata !{i32 786489, metadata !1, null, metadata !"PR15637", i32 1} ; [ DW_TAG_namespace ] [PR15637] [line 1]
diff --git a/test/DebugInfo/X86/vector.ll b/test/DebugInfo/X86/vector.ll
index 6e14ed67fc3..a7a15853984 100644
--- a/test/DebugInfo/X86/vector.ll
+++ b/test/DebugInfo/X86/vector.ll
@@ -12,8 +12,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!13}
 
-!0 = metadata !{i32 786449, metadata !12, i32 12, metadata !"clang version 3.3 (trunk 171825) (llvm/trunk 171822)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/echristo/foo.c] [DW_LANG_C99]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !12, i32 12, metadata !"clang version 3.3 (trunk 171825) (llvm/trunk 171822)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/echristo/foo.c] [DW_LANG_C99]
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 3, metadata !7, i32 0, i32 1, <4 x i32>* @a, null} ; [ DW_TAG_variable ] [a] [line 3] [def]
 !6 = metadata !{i32 786473, metadata !12} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/X86/vla.ll b/test/DebugInfo/X86/vla.ll
index 512b22323c8..a1a2e66685c 100644
--- a/test/DebugInfo/X86/vla.ll
+++ b/test/DebugInfo/X86/vla.ll
@@ -77,7 +77,7 @@ entry:
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/vla.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"vla.c", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !9}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"vla", metadata !"vla", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @vla, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [vla]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/vla.c]
diff --git a/test/DebugInfo/cu-ranges.ll b/test/DebugInfo/cu-ranges.ll
index d927980c8d6..0dd422d793d 100644
--- a/test/DebugInfo/cu-ranges.ll
+++ b/test/DebugInfo/cu-ranges.ll
@@ -35,7 +35,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 (trunk 197756) (llvm/trunk 197768)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f", metadata !"f", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @f, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [f]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/foo.c]
diff --git a/test/DebugInfo/debug-info-qualifiers.ll b/test/DebugInfo/debug-info-qualifiers.ll
index 264d8e32a29..2aea7360707 100644
--- a/test/DebugInfo/debug-info-qualifiers.ll
+++ b/test/DebugInfo/debug-info-qualifiers.ll
@@ -65,7 +65,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !16, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786434, metadata !5, null, metadata !"A", i32 2, i64 8, i64 8, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !"debug-info-qualifiers.cpp", metadata !""}
diff --git a/test/DebugInfo/dwarf-public-names.ll b/test/DebugInfo/dwarf-public-names.ll
index 399ba179eb7..ca0d721e8c6 100644
--- a/test/DebugInfo/dwarf-public-names.ll
+++ b/test/DebugInfo/dwarf-public-names.ll
@@ -88,8 +88,8 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!38}
 
-!0 = metadata !{i32 786449, metadata !37, i32 4, metadata !"clang version 3.3 (http://llvm.org/git/clang.git a09cd8103a6a719cb2628cdf0c91682250a17bd2) (http://llvm.org/git/llvm.git 47d03cec0afca0c01ae42b82916d1d731716cd20)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !2, metadata !24,  metadata !24, metadata !""} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/dwarf-public-names.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !37, i32 4, metadata !"clang version 3.3 (http://llvm.org/git/clang.git a09cd8103a6a719cb2628cdf0c91682250a17bd2) (http://llvm.org/git/llvm.git 47d03cec0afca0c01ae42b82916d1d731716cd20)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !2, metadata !24,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/dwarf-public-names.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !2 = metadata !{metadata !3, metadata !18, metadata !19, metadata !20}
 !3 = metadata !{i32 786478, metadata !4, null, metadata !"member_function", metadata !"member_function", metadata !"_ZN1C15member_functionEv", i32 9, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.C*)* @_ZN1C15member_functionEv, null, metadata !12, metadata !1, i32 9} ; [ DW_TAG_subprogram ] [line 9] [def] [member_function]
 !4 = metadata !{i32 786473, metadata !37} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/enum.ll b/test/DebugInfo/enum.ll
index 3796fb4afbe..df097a6ea92 100644
--- a/test/DebugInfo/enum.ll
+++ b/test/DebugInfo/enum.ll
@@ -64,7 +64,7 @@ attributes #1 = { nounwind readnone }
 !8 = metadata !{i32 786436, metadata !1, null, metadata !"e2", i32 2, i64 32, i64 32, i32 0, i32 0, null, metadata !9, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [e2] [line 2, size 32, align 32, offset 0] [def] [from ]
 !9 = metadata !{metadata !10}
 !10 = metadata !{i32 786472, metadata !"X", i64 0} ; [ DW_TAG_enumerator ] [X :: 0]
-!11 = metadata !{i32 0}
+!11 = metadata !{}
 !12 = metadata !{metadata !13}
 !13 = metadata !{i32 786478, metadata !1, metadata !14, metadata !"func", metadata !"func", metadata !"_Z4funcv", i32 3, metadata !15, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z4funcv, null, null, metadata !11, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [func]
 !14 = metadata !{i32 786473, metadata !1}         ; [ DW_TAG_file_type ] [/tmp/enum.cpp]
diff --git a/test/DebugInfo/global.ll b/test/DebugInfo/global.ll
index c826fc07ebe..c515114fd50 100644
--- a/test/DebugInfo/global.ll
+++ b/test/DebugInfo/global.ll
@@ -25,7 +25,7 @@ attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-fra
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !9, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/global.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"global.cpp", metadata !"/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 2, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 2] [def] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/tmp/global.cpp]
diff --git a/test/DebugInfo/inlined-arguments.ll b/test/DebugInfo/inlined-arguments.ll
index a96301a096e..ebc81a683f7 100644
--- a/test/DebugInfo/inlined-arguments.ll
+++ b/test/DebugInfo/inlined-arguments.ll
@@ -50,7 +50,7 @@ attributes #2 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/exp.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"exp.cpp", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !8}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f2", metadata !"f2", metadata !"_Z2f2v", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @_Z2f2v, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f2]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/exp.cpp]
diff --git a/test/DebugInfo/inlined-vars.ll b/test/DebugInfo/inlined-vars.ll
index 446c28b32e6..e9c439a85d3 100644
--- a/test/DebugInfo/inlined-vars.ll
+++ b/test/DebugInfo/inlined-vars.ll
@@ -18,10 +18,11 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!27}
 
-!0 = metadata !{i32 786449, metadata !26, i32 4, metadata !"clang version 3.2 (trunk 159419)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!0 = metadata !{i32 786449, metadata !26, i32 4, metadata !"clang version 3.2 (trunk 159419)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2,  metadata !2, metadata !""} ; [ DW_TAG_compile_unit ]
 !1 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !5, metadata !10}
-!5 = metadata !{i32 786478, metadata !26, metadata !6, metadata !"main", metadata !"main", metadata !"", i32 10, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @main, null, null, metadata !1, i32 10} ; [ DW_TAG_subprogram ]
+!5 = metadata !{i32 786478, metadata !26, metadata !6, metadata !"main", metadata !"main", metadata !"", i32 10, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @main, null, null, metadata !2, i32 10} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !26} ; [ DW_TAG_file_type ]
 !7 = metadata !{i32 786453, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{metadata !9}
diff --git a/test/DebugInfo/member-order.ll b/test/DebugInfo/member-order.ll
index 3c955bc27ca..652a6cd6c31 100644
--- a/test/DebugInfo/member-order.ll
+++ b/test/DebugInfo/member-order.ll
@@ -45,7 +45,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !13, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/member-order.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"member-order.cpp", metadata !"/tmp/dbginfo"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"foo", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !11}
diff --git a/test/DebugInfo/member-pointers.ll b/test/DebugInfo/member-pointers.ll
index 4d5adaa5665..4ca69426efb 100644
--- a/test/DebugInfo/member-pointers.ll
+++ b/test/DebugInfo/member-pointers.ll
@@ -23,8 +23,8 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!16}
 
-!0 = metadata !{i32 786449, metadata !15, i32 4, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [/home/blaikie/Development/scratch/simple.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{i32 0}
+!0 = metadata !{i32 786449, metadata !15, i32 4, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] [/home/blaikie/Development/scratch/simple.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{}
 !3 = metadata !{metadata !5, metadata !10}
 !5 = metadata !{i32 786484, i32 0, null, metadata !"x", metadata !"x", metadata !"", metadata !6, i32 4, metadata !7, i32 0, i32 1, i64* @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
 !6 = metadata !{i32 786473, metadata !15} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/template-recursive-void.ll b/test/DebugInfo/template-recursive-void.ll
index e51b76c3766..ffbc30e7504 100644
--- a/test/DebugInfo/template-recursive-void.ll
+++ b/test/DebugInfo/template-recursive-void.ll
@@ -27,7 +27,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 187958) (llvm/trunk 187964)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/debug-info-template-recursive.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"debug-info-template-recursive.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786484, i32 0, null, metadata !"filters", metadata !"filters", metadata !"", metadata !5, i32 10, metadata !6, i32 0, i32 1, %class.bar* @filters, null} ; [ DW_TAG_variable ] [filters] [line 10] [def]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/debug-info-template-recursive.cpp]
diff --git a/test/DebugInfo/tu-composite.ll b/test/DebugInfo/tu-composite.ll
index 50876f79e1c..7a8ff571265 100644
--- a/test/DebugInfo/tu-composite.ll
+++ b/test/DebugInfo/tu-composite.ll
@@ -125,7 +125,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !30, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [tmp.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"tmp.cpp", metadata !"."}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !18, metadata !19, metadata !22, metadata !23, metadata !24}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"C", i32 1, i64 64, i64 64, i32 0, i32 0, null, metadata !5, i32 0, metadata !"_ZTS1C", null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 1, size 64, align 64, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !13}
diff --git a/test/DebugInfo/tu-member-pointer.ll b/test/DebugInfo/tu-member-pointer.ll
index e6fc41f508f..cd37a9892f4 100644
--- a/test/DebugInfo/tu-member-pointer.ll
+++ b/test/DebugInfo/tu-member-pointer.ll
@@ -18,7 +18,7 @@
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !2, metadata !5, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"foo.cpp", metadata !"."}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"Foo", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS3Foo"} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 0, offset 0] [decl] [from ]
 !5 = metadata !{metadata !6}
diff --git a/test/DebugInfo/two-cus-from-same-file.ll b/test/DebugInfo/two-cus-from-same-file.ll
index 560bd00084c..c4d663c5a36 100644
--- a/test/DebugInfo/two-cus-from-same-file.ll
+++ b/test/DebugInfo/two-cus-from-same-file.ll
@@ -36,7 +36,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 !llvm.module.flags = !{!33}
 
 !0 = metadata !{i32 786449, metadata !32, i32 12, metadata !"clang version 3.2 (trunk 156513)", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
+!1 = metadata !{}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, metadata !32, metadata !6, metadata !"foo", metadata !"foo", metadata !"", i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @foo, null, null, metadata !1, i32 5} ; [ DW_TAG_subprogram ]
 !6 = metadata !{i32 786473, metadata !32} ; [ DW_TAG_file_type ]
diff --git a/test/DebugInfo/version.ll b/test/DebugInfo/version.ll
index bfc2f9fabfa..9a201ebf309 100644
--- a/test/DebugInfo/version.ll
+++ b/test/DebugInfo/version.ll
@@ -20,7 +20,7 @@ attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointe
 
 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 185475)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ]
 !1 = metadata !{metadata !"CodeGen/dwarf-version.c", metadata !"test"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 6, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [main]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ]
diff --git a/test/Linker/Inputs/type-unique-simple2-a.ll b/test/Linker/Inputs/type-unique-simple2-a.ll
index 63470f3f5e8..676b4109c0d 100644
--- a/test/Linker/Inputs/type-unique-simple2-a.ll
+++ b/test/Linker/Inputs/type-unique-simple2-a.ll
@@ -65,7 +65,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !11, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"foo.cpp", metadata !"."}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, null, metadata !"Base", i32 1, i64 128, i64 64, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 128, align 64, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./a.hpp", metadata !"."}
diff --git a/test/Linker/Inputs/type-unique-simple2-b.ll b/test/Linker/Inputs/type-unique-simple2-b.ll
index f564d81f1bb..3ec79e5d9cb 100644
--- a/test/Linker/Inputs/type-unique-simple2-b.ll
+++ b/test/Linker/Inputs/type-unique-simple2-b.ll
@@ -38,7 +38,7 @@ attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !11, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [bar.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"bar.cpp", metadata !"."}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, null, metadata !"Base", i32 1, i64 128, i64 64, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 128, align 64, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./a.hpp", metadata !"."}
diff --git a/test/Linker/type-unique-simple-a.ll b/test/Linker/type-unique-simple-a.ll
index ef70ba293da..350cd1fd459 100644
--- a/test/Linker/type-unique-simple-a.ll
+++ b/test/Linker/type-unique-simple-a.ll
@@ -70,7 +70,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !9, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/simple/foo.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"foo.cpp", metadata !"/Users/mren/c_testing/type_unique_air/simple"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, null, metadata !"Base", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 32, align 32, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./a.hpp", metadata !"/Users/mren/c_testing/type_unique_air/simple"}
diff --git a/test/Linker/type-unique-simple-b.ll b/test/Linker/type-unique-simple-b.ll
index c46e67f4ff1..854ec158794 100644
--- a/test/Linker/type-unique-simple-b.ll
+++ b/test/Linker/type-unique-simple-b.ll
@@ -40,7 +40,7 @@ attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !9, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/simple/bar.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"bar.cpp", metadata !"/Users/mren/c_testing/type_unique_air/simple"}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786451, metadata !5, null, metadata !"Base", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 32, align 32, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./a.hpp", metadata !"/Users/mren/c_testing/type_unique_air/simple"}
diff --git a/test/Linker/type-unique-simple2-a.ll b/test/Linker/type-unique-simple2-a.ll
index 782bbac4e7b..d0f1155fe65 100644
--- a/test/Linker/type-unique-simple2-a.ll
+++ b/test/Linker/type-unique-simple2-a.ll
@@ -82,7 +82,7 @@ attributes #4 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !26, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786434, metadata !5, null, metadata !"A", i32 2, i64 64, i64 64, i32 0, i32 0, null, metadata !6, i32 0, metadata !"_ZTS1A", null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 64, align 64, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./ab.h", metadata !""}
diff --git a/test/Linker/type-unique-simple2-b.ll b/test/Linker/type-unique-simple2-b.ll
index cd77dfc7961..9155f69fb91 100644
--- a/test/Linker/type-unique-simple2-b.ll
+++ b/test/Linker/type-unique-simple2-b.ll
@@ -49,7 +49,7 @@ attributes #1 = { nounwind readnone }
 
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !25, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{i32 0}
+!2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{i32 786434, metadata !5, null, metadata !"A", i32 2, i64 64, i64 64, i32 0, i32 0, null, metadata !6, i32 0, metadata !"_ZTS1A", null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 64, align 64, offset 0] [def] [from ]
 !5 = metadata !{metadata !"./ab.h", metadata !""}
-- 
2.34.1