Update aosp/master LLVM for rebase to r230699.

Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9

121 files changed, 1336 insertions, 765 deletions

diff --git a/test/Linker/2006-06-15-GlobalVarAlignment.ll b/test/Linker/2006-06-15-GlobalVarAlignment.ll
deleted file mode 100644
index c9f9b0e..0000000
--- a/test/Linker/2006-06-15-GlobalVarAlignment.ll
+++ /dev/null
@@ -1,8 +0,0 @@
-; The linker should choose the largest alignment when linking.
-
-; RUN: echo "@X = global i32 7, align 8" | llvm-as > %t.2.bc
-; RUN: llvm-as < %s > %t.1.bc
-; RUN: llvm-link %t.1.bc %t.2.bc -S | FileCheck %s
-; CHECK: align 8
-
-@X = weak global i32 7, align 4
diff --git a/test/Linker/2009-09-03-mdnode.ll b/test/Linker/2009-09-03-mdnode.ll
index d9871b2..1f308e7 100644
--- a/test/Linker/2009-09-03-mdnode.ll
+++ b/test/Linker/2009-09-03-mdnode.ll
@@ -26,6 +26,6 @@ declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
 
 declare void @llvm.dbg.region.end(metadata) nounwind readnone
 
-!0 = metadata !{metadata !"0x2e\00main\00main\00main\002\000\001\000\006\000\000\000", i32 0, metadata !1, null, null, null, null, null} ; [ DW_TAG_subprogram ]
-!1 = metadata !{metadata !"0x11\0012\00ellcc 0.1.0\001\00\000\00\000", metadata !2, null, null, null, null, null} ; [ DW_TAG_compile_unit ]
-!2 = metadata !{metadata !"a.c", metadata !"/home/rich/ellcc/test/source"}
+!0 = !{!"0x2e\00main\00main\00main\002\000\001\000\006\000\000\000", i32 0, !1, null, null, null, null, null} ; [ DW_TAG_subprogram ]
+!1 = !{!"0x11\0012\00ellcc 0.1.0\001\00\000\00\000", !2, null, null, null, null, null} ; [ DW_TAG_compile_unit ]
+!2 = !{!"a.c", !"/home/rich/ellcc/test/source"}
diff --git a/test/Linker/2009-09-03-mdnode2.ll b/test/Linker/2009-09-03-mdnode2.ll
index b01f947..68e3294 100644
--- a/test/Linker/2009-09-03-mdnode2.ll
+++ b/test/Linker/2009-09-03-mdnode2.ll
@@ -21,6 +21,6 @@ declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
 
 declare void @llvm.dbg.region.end(metadata) nounwind readnone
 
-!0 = metadata !{metadata !"0x2e\00f\00f\00f\001\000\001\000\006\000\000\000", i32 0, metadata !1, null, null, null, null, null} ; [ DW_TAG_subprogram ]
-!1 = metadata !{metadata !"0x11\0012\00ellcc 0.1.0\001\00\000\00\000", metadata !2, null, null, null, null, null} ; [ DW_TAG_compile_unit ]
-!2 = metadata !{metadata !"b.c", metadata !"/home/rich/ellcc/test/source"}
+!0 = !{!"0x2e\00f\00f\00f\001\000\001\000\006\000\000\000", i32 0, !1, null, null, null, null, null} ; [ DW_TAG_subprogram ]
+!1 = !{!"0x11\0012\00ellcc 0.1.0\001\00\000\00\000", !2, null, null, null, null, null} ; [ DW_TAG_compile_unit ]
+!2 = !{!"b.c", !"/home/rich/ellcc/test/source"}
diff --git a/test/Linker/2011-08-04-DebugLoc.ll b/test/Linker/2011-08-04-DebugLoc.ll
index a9307af..85b9e17 100644
--- a/test/Linker/2011-08-04-DebugLoc.ll
+++ b/test/Linker/2011-08-04-DebugLoc.ll
@@ -17,15 +17,15 @@ define i32 @foo() nounwind ssp {
 !llvm.module.flags = !{!11}
 !llvm.dbg.sp = !{!1}
 
-!0 = metadata !{metadata !"0x11\0012\00Apple clang version 3.0 (tags/Apple/clang-209.11) (based on LLVM 3.0svn)\001\00\000\00\000", metadata !8, metadata !9, metadata !9, metadata !10, null, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !"0x2e\00foo\00foo\00\002\000\001\000\006\000\000\000", metadata !8, metadata !2, metadata !3, null, i32 ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 0] [foo]
-!2 = metadata !{metadata !"0x29", metadata !8} ; [ DW_TAG_file_type ]
-!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !8, metadata !2, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!4 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !0} ; [ DW_TAG_base_type ]
-!6 = metadata !{i32 2, i32 13, metadata !7, null}
-!7 = metadata !{metadata !"0xb\002\0011\000", metadata !8, metadata !1} ; [ DW_TAG_lexical_block ]
-!8 = metadata !{metadata !"a.c", metadata !"/private/tmp"}
-!9 = metadata !{i32 0}
-!10 = metadata !{metadata !1}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00Apple clang version 3.0 (tags/Apple/clang-209.11) (based on LLVM 3.0svn)\001\00\000\00\000", !8, !9, !9, !10, null, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!"0x2e\00foo\00foo\00\002\000\001\000\006\000\000\000", !8, !2, !3, null, i32 ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 0] [foo]
+!2 = !{!"0x29", !8} ; [ DW_TAG_file_type ]
+!3 = !{!"0x15\00\000\000\000\000\000\000", !8, !2, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = !{!5}
+!5 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !0} ; [ DW_TAG_base_type ]
+!6 = !MDLocation(line: 2, column: 13, scope: !7)
+!7 = !{!"0xb\002\0011\000", !8, !1} ; [ DW_TAG_lexical_block ]
+!8 = !{!"a.c", !"/private/tmp"}
+!9 = !{i32 0}
+!10 = !{!1}
+!11 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-04-DebugLoc2.ll b/test/Linker/2011-08-04-DebugLoc2.ll
index 948dd18..a3cd001 100644
--- a/test/Linker/2011-08-04-DebugLoc2.ll
+++ b/test/Linker/2011-08-04-DebugLoc2.ll
@@ -14,15 +14,15 @@ define i32 @bar() nounwind ssp {
 !llvm.module.flags = !{!11}
 !llvm.dbg.sp = !{!1}
 
-!0 = metadata !{metadata !"0x11\0012\00Apple clang version 3.0 (tags/Apple/clang-209.11) (based on LLVM 3.0svn)\001\00\000\00\000", metadata !8, metadata !9, metadata !9, metadata !10, null, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !"0x2e\00bar\00bar\00\001\000\001\000\006\000\000\000", metadata !8, metadata !2, metadata !3, null, i32 ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [bar]
-!2 = metadata !{metadata !"0x29", metadata !8} ; [ DW_TAG_file_type ]
-!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !8, metadata !2, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!4 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !0} ; [ DW_TAG_base_type ]
-!6 = metadata !{i32 1, i32 13, metadata !7, null}
-!7 = metadata !{metadata !"0xb\001\0011\000", metadata !8, metadata !1} ; [ DW_TAG_lexical_block ]
-!8 = metadata !{metadata !"b.c", metadata !"/private/tmp"}
-!9 = metadata !{i32 0}
-!10 = metadata !{metadata !1}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00Apple clang version 3.0 (tags/Apple/clang-209.11) (based on LLVM 3.0svn)\001\00\000\00\000", !8, !9, !9, !10, null, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!"0x2e\00bar\00bar\00\001\000\001\000\006\000\000\000", !8, !2, !3, null, i32 ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [bar]
+!2 = !{!"0x29", !8} ; [ DW_TAG_file_type ]
+!3 = !{!"0x15\00\000\000\000\000\000\000", !8, !2, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = !{!5}
+!5 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !0} ; [ DW_TAG_base_type ]
+!6 = !MDLocation(line: 1, column: 13, scope: !7)
+!7 = !{!"0xb\001\0011\000", !8, !1} ; [ DW_TAG_lexical_block ]
+!8 = !{!"b.c", !"/private/tmp"}
+!9 = !{i32 0}
+!10 = !{!1}
+!11 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-04-Metadata.ll b/test/Linker/2011-08-04-Metadata.ll
index 7bdbb33..da98f20 100644
--- a/test/Linker/2011-08-04-Metadata.ll
+++ b/test/Linker/2011-08-04-Metadata.ll
@@ -2,8 +2,8 @@
 ; RUN: llvm-dis < %t.bc | FileCheck %s
 ; Test if internal global variable's debug info is merged appropriately or not.
 
-;CHECK:  metadata !{metadata !"0x34\00x\00x\00\002\001\001", metadata !{{[0-9]+}}, metadata !{{[0-9]+}}, metadata !{{[0-9]+}}, i32* @x}
-;CHECK:  metadata !{metadata !"0x34\00x\00x\00\001\001\001", metadata !{{[0-9]+}}, metadata !{{[0-9]+}}, metadata !{{[0-9]+}}, i32* @x1}
+;CHECK:   !"0x34\00x\00x\00\002\001\001", !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, i32* @x}
+;CHECK:   !"0x34\00x\00x\00\001\001\001", !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, i32* @x1}
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-apple-macosx10.7.0"
 
@@ -20,15 +20,15 @@ entry:
 !llvm.dbg.sp = !{!1}
 !llvm.dbg.gv = !{!5}
 
-!0 = metadata !{metadata !"0x11\0012\00clang version 3.0 ()\001\00\000\00\000", metadata !9, metadata !4, metadata !4, metadata !10, null, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !"0x2e\00foo\00foo\00\003\000\001\000\006\000\000\000", metadata !9, metadata !2, metadata !3, null, void ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 0] [foo]
-!2 = metadata !{metadata !"0x29", metadata !9} ; [ DW_TAG_file_type ]
-!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !9, metadata !2, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!4 = metadata !{null}
-!5 = metadata !{metadata !"0x34\00x\00x\00\002\001\001", metadata !0, metadata !2, metadata !6, i32* @x} ; [ DW_TAG_variable ]
-!6 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !0} ; [ DW_TAG_base_type ]
-!7 = metadata !{i32 3, i32 14, metadata !8, null}
-!8 = metadata !{metadata !"0xb\003\0012\000", metadata !9, metadata !1} ; [ DW_TAG_lexical_block ]
-!9 = metadata !{metadata !"/tmp/one.c", metadata !"/Volumes/Lalgate/Slate/D"}
-!10 = metadata !{metadata !1}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00clang version 3.0 ()\001\00\000\00\000", !9, !4, !4, !10, null, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!"0x2e\00foo\00foo\00\003\000\001\000\006\000\000\000", !9, !2, !3, null, void ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 0] [foo]
+!2 = !{!"0x29", !9} ; [ DW_TAG_file_type ]
+!3 = !{!"0x15\00\000\000\000\000\000\000", !9, !2, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = !{null}
+!5 = !{!"0x34\00x\00x\00\002\001\001", !0, !2, !6, i32* @x} ; [ DW_TAG_variable ]
+!6 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !0} ; [ DW_TAG_base_type ]
+!7 = !MDLocation(line: 3, column: 14, scope: !8)
+!8 = !{!"0xb\003\0012\000", !9, !1} ; [ DW_TAG_lexical_block ]
+!9 = !{!"/tmp/one.c", !"/Volumes/Lalgate/Slate/D"}
+!10 = !{!1}
+!11 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-04-Metadata2.ll b/test/Linker/2011-08-04-Metadata2.ll
index fcf72aa..fb196d9 100644
--- a/test/Linker/2011-08-04-Metadata2.ll
+++ b/test/Linker/2011-08-04-Metadata2.ll
@@ -19,15 +19,15 @@ entry:
 !llvm.dbg.sp = !{!1}
 !llvm.dbg.gv = !{!5}
 
-!0 = metadata !{metadata !"0x11\0012\00clang version 3.0 ()\001\00\000\00\000", metadata !9, metadata !4, metadata !4, metadata !10, null, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !"0x2e\00bar\00bar\00\002\000\001\000\006\000\000\000", metadata !9, metadata !2, metadata !3, null, void ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 0] [bar]
-!2 = metadata !{metadata !"0x29", metadata !9} ; [ DW_TAG_file_type ]
-!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !9, metadata !2, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!4 = metadata !{null}
-!5 = metadata !{metadata !"0x34\00x\00x\00\001\001\001", metadata !0, metadata !2, metadata !6, i32* @x} ; [ DW_TAG_variable ]
-!6 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !0} ; [ DW_TAG_base_type ]
-!7 = metadata !{i32 2, i32 14, metadata !8, null}
-!8 = metadata !{metadata !"0xb\002\0012\000", metadata !9, metadata !1} ; [ DW_TAG_lexical_block ]
-!9 = metadata !{metadata !"/tmp/two.c", metadata !"/Volumes/Lalgate/Slate/D"}
-!10 = metadata !{metadata !1}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00clang version 3.0 ()\001\00\000\00\000", !9, !4, !4, !10, null, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!"0x2e\00bar\00bar\00\002\000\001\000\006\000\000\000", !9, !2, !3, null, void ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 0] [bar]
+!2 = !{!"0x29", !9} ; [ DW_TAG_file_type ]
+!3 = !{!"0x15\00\000\000\000\000\000\000", !9, !2, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = !{null}
+!5 = !{!"0x34\00x\00x\00\001\001\001", !0, !2, !6, i32* @x} ; [ DW_TAG_variable ]
+!6 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !0} ; [ DW_TAG_base_type ]
+!7 = !MDLocation(line: 2, column: 14, scope: !8)
+!8 = !{!"0xb\002\0012\000", !9, !1} ; [ DW_TAG_lexical_block ]
+!9 = !{!"/tmp/two.c", !"/Volumes/Lalgate/Slate/D"}
+!10 = !{!1}
+!11 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-18-unique-class-type.ll b/test/Linker/2011-08-18-unique-class-type.ll
index 6fa2126..a8f1350 100644
--- a/test/Linker/2011-08-18-unique-class-type.ll
+++ b/test/Linker/2011-08-18-unique-class-type.ll
@@ -11,7 +11,7 @@ target triple = "x86_64-apple-macosx10.7.0"
 define void @_Z3fooN2N11AE() nounwind uwtable ssp {
 entry:
   %mya = alloca %"class.N1::A", align 1
-  call void @llvm.dbg.declare(metadata !{%"class.N1::A"* %mya}, metadata !9, metadata !{metadata !"0x102"}), !dbg !13
+  call void @llvm.dbg.declare(metadata %"class.N1::A"* %mya, metadata !9, metadata !{!"0x102"}), !dbg !13
   ret void, !dbg !14
 }
 
@@ -20,21 +20,21 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!18}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.0 (trunk 137954)\001\00\000\00\000", metadata !16, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00foo\00foo\00_Z3fooN2N11AE\004\000\001\000\006\00256\000\000", metadata !16, metadata !6, metadata !7, null, void ()* @_Z3fooN2N11AE, null, null, null} ; [ DW_TAG_subprogram ] [line 4] [def] [scope 0] [foo]
-!6 = metadata !{metadata !"0x29", metadata !16} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !16, metadata !6, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{null}
-!9 = metadata !{metadata !"0x101\00mya\0016777220\000", metadata !5, metadata !6, metadata !10} ; [ DW_TAG_arg_variable ]
-!10 = metadata !{metadata !"0x2\00A\003\008\008\000\000\000", metadata !17, metadata !11, null, metadata !2, null, null, null} ; [ DW_TAG_class_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
-!11 = metadata !{metadata !"0x39\00N1\002", metadata !17, null} ; [ DW_TAG_namespace ]
-!12 = metadata !{metadata !"0x29", metadata !17} ; [ DW_TAG_file_type ]
-!13 = metadata !{i32 4, i32 12, metadata !5, null}
-!14 = metadata !{i32 4, i32 18, metadata !15, null}
-!15 = metadata !{metadata !"0xb\004\0017\000", metadata !16, metadata !5} ; [ DW_TAG_lexical_block ]
-!16 = metadata !{metadata !"n1.c", metadata !"/private/tmp"}
-!17 = metadata !{metadata !"./n.h", metadata !"/private/tmp"}
-!18 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.0 (trunk 137954)\001\00\000\00\000", !16, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00foo\00foo\00_Z3fooN2N11AE\004\000\001\000\006\00256\000\000", !16, !6, !7, null, void ()* @_Z3fooN2N11AE, null, null, null} ; [ DW_TAG_subprogram ] [line 4] [def] [scope 0] [foo]
+!6 = !{!"0x29", !16} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", !16, !6, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{null}
+!9 = !{!"0x101\00mya\0016777220\000", !5, !6, !10} ; [ DW_TAG_arg_variable ]
+!10 = !{!"0x2\00A\003\008\008\000\000\000", !17, !11, null, !2, null, null, null} ; [ DW_TAG_class_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
+!11 = !{!"0x39\00N1\002", !17, null} ; [ DW_TAG_namespace ]
+!12 = !{!"0x29", !17} ; [ DW_TAG_file_type ]
+!13 = !MDLocation(line: 4, column: 12, scope: !5)
+!14 = !MDLocation(line: 4, column: 18, scope: !15)
+!15 = !{!"0xb\004\0017\000", !16, !5} ; [ DW_TAG_lexical_block ]
+!16 = !{!"n1.c", !"/private/tmp"}
+!17 = !{!"./n.h", !"/private/tmp"}
+!18 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-18-unique-class-type2.ll b/test/Linker/2011-08-18-unique-class-type2.ll
index 97fdcd0..dd0df58 100644
--- a/test/Linker/2011-08-18-unique-class-type2.ll
+++ b/test/Linker/2011-08-18-unique-class-type2.ll
@@ -9,7 +9,7 @@ target triple = "x86_64-apple-macosx10.7.0"
 define void @_Z3barN2N11AE() nounwind uwtable ssp {
 entry:
   %youra = alloca %"class.N1::A", align 1
-  call void @llvm.dbg.declare(metadata !{%"class.N1::A"* %youra}, metadata !9, metadata !{metadata !"0x102"}), !dbg !13
+  call void @llvm.dbg.declare(metadata %"class.N1::A"* %youra, metadata !9, metadata !{!"0x102"}), !dbg !13
   ret void, !dbg !14
 }
 
@@ -18,21 +18,21 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!18}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.0 (trunk 137954)\001\00\000\00\000", metadata !16, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00bar\00bar\00_Z3barN2N11AE\004\000\001\000\006\00256\000\000", i32 0, metadata !6, metadata !7, null, void ()* @_Z3barN2N11AE, null, null, null} ; [ DW_TAG_subprogram ] [line 4] [def] [scope 0] [bar]
-!6 = metadata !{metadata !"0x29", metadata !16} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !16, metadata !6, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{null}
-!9 = metadata !{metadata !"0x101\00youra\0016777220\000", metadata !5, metadata !6, metadata !10} ; [ DW_TAG_arg_variable ]
-!10 = metadata !{metadata !"0x2\00A\003\008\008\000\000\000", metadata !17, metadata !11, null, metadata !2, null, null, null} ; [ DW_TAG_class_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
-!11 = metadata !{metadata !"0x39\00N1\002", metadata !17, null} ; [ DW_TAG_namespace ]
-!12 = metadata !{metadata !"0x29", metadata !17} ; [ DW_TAG_file_type ]
-!13 = metadata !{i32 4, i32 12, metadata !5, null}
-!14 = metadata !{i32 4, i32 20, metadata !15, null}
-!15 = metadata !{metadata !"0xb\004\0019\000", metadata !16, metadata !5} ; [ DW_TAG_lexical_block ]
-!16 = metadata !{metadata !"n2.c", metadata !"/private/tmp"}
-!17 = metadata !{metadata !"./n.h", metadata !"/private/tmp"}
-!18 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.0 (trunk 137954)\001\00\000\00\000", !16, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00bar\00bar\00_Z3barN2N11AE\004\000\001\000\006\00256\000\000", i32 0, !6, !7, null, void ()* @_Z3barN2N11AE, null, null, null} ; [ DW_TAG_subprogram ] [line 4] [def] [scope 0] [bar]
+!6 = !{!"0x29", !16} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", !16, !6, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{null}
+!9 = !{!"0x101\00youra\0016777220\000", !5, !6, !10} ; [ DW_TAG_arg_variable ]
+!10 = !{!"0x2\00A\003\008\008\000\000\000", !17, !11, null, !2, null, null, null} ; [ DW_TAG_class_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
+!11 = !{!"0x39\00N1\002", !17, null} ; [ DW_TAG_namespace ]
+!12 = !{!"0x29", !17} ; [ DW_TAG_file_type ]
+!13 = !MDLocation(line: 4, column: 12, scope: !5)
+!14 = !MDLocation(line: 4, column: 20, scope: !15)
+!15 = !{!"0xb\004\0019\000", !16, !5} ; [ DW_TAG_lexical_block ]
+!16 = !{!"n2.c", !"/private/tmp"}
+!17 = !{!"./n.h", !"/private/tmp"}
+!18 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-18-unique-debug-type.ll b/test/Linker/2011-08-18-unique-debug-type.ll
index e9dcf87..c1b3a1d 100644
--- a/test/Linker/2011-08-18-unique-debug-type.ll
+++ b/test/Linker/2011-08-18-unique-debug-type.ll
@@ -12,16 +12,16 @@ entry:
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!13}
 
-!0 = metadata !{metadata !"0x11\0012\00clang version 3.0 (trunk 137954)\001\00\000\00\000", metadata !12, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\000\000\000", metadata !12, metadata !6, metadata !7, null, i32 ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [foo]
-!6 = metadata !{metadata !"0x29", metadata !12} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !12, metadata !6, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{metadata !9}
-!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
-!10 = metadata !{i32 1, i32 13, metadata !11, null}
-!11 = metadata !{metadata !"0xb\001\0011\000", metadata !12, metadata !5} ; [ DW_TAG_lexical_block ]
-!12 = metadata !{metadata !"one.c", metadata !"/private/tmp"}
-!13 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00clang version 3.0 (trunk 137954)\001\00\000\00\000", !12, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\000\000\000", !12, !6, !7, null, i32 ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [foo]
+!6 = !{!"0x29", !12} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", !12, !6, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{!9}
+!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
+!10 = !MDLocation(line: 1, column: 13, scope: !11)
+!11 = !{!"0xb\001\0011\000", !12, !5} ; [ DW_TAG_lexical_block ]
+!12 = !{!"one.c", !"/private/tmp"}
+!13 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/2011-08-18-unique-debug-type2.ll b/test/Linker/2011-08-18-unique-debug-type2.ll
index 7bbed9f..49c0a5c 100644
--- a/test/Linker/2011-08-18-unique-debug-type2.ll
+++ b/test/Linker/2011-08-18-unique-debug-type2.ll
@@ -12,16 +12,16 @@ entry:
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!13}
 
-!0 = metadata !{metadata !"0x11\0012\00clang version 3.0 (trunk 137954)\001\00\000\00\000", metadata !12, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00bar\00bar\00\001\000\001\000\006\000\000\000", metadata !12, metadata !6, metadata !7, null, i32 ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [bar]
-!6 = metadata !{metadata !"0x29", metadata !12} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !12, metadata !6, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{metadata !9}
-!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
-!10 = metadata !{i32 1, i32 13, metadata !11, null}
-!11 = metadata !{metadata !"0xb\001\0011\000", metadata !12, metadata !5} ; [ DW_TAG_lexical_block ]
-!12 = metadata !{metadata !"two.c", metadata !"/private/tmp"}
-!13 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\0012\00clang version 3.0 (trunk 137954)\001\00\000\00\000", !12, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00bar\00bar\00\001\000\001\000\006\000\000\000", !12, !6, !7, null, i32 ()* @bar, null, null, null} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 0] [bar]
+!6 = !{!"0x29", !12} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", !12, !6, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{!9}
+!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
+!10 = !MDLocation(line: 1, column: 13, scope: !11)
+!11 = !{!"0xb\001\0011\000", !12, !5} ; [ DW_TAG_lexical_block ]
+!12 = !{!"two.c", !"/private/tmp"}
+!13 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/DbgDeclare.ll b/test/Linker/DbgDeclare.ll
index 3d39b30..de5ac9e 100644
--- a/test/Linker/DbgDeclare.ll
+++ b/test/Linker/DbgDeclare.ll
@@ -4,12 +4,12 @@
 
 ; rdar://13089880
 ; CHECK: define i32 @main(i32 %argc, i8** %argv)
-; CHECK: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !{{[0-9]+}}, metadata {{.*}})
-; CHECK: call void @llvm.dbg.declare(metadata !{i8*** %argv.addr}, metadata !{{[0-9]+}}, metadata {{.*}})
+; CHECK: call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !{{[0-9]+}}, metadata {{.*}})
+; CHECK: call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !{{[0-9]+}}, metadata {{.*}})
 ; CHECK: define void @test(i32 %argc, i8** %argv)
-; CHECK: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !{{[0-9]+}}, metadata {{.*}})
-; CHECK: call void @llvm.dbg.declare(metadata !{i8*** %argv.addr}, metadata !{{[0-9]+}}, metadata {{.*}})
-; CHECK: call void @llvm.dbg.declare(metadata !{i32* %i}, metadata !{{[0-9]+}}, metadata {{.*}})
+; CHECK: call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !{{[0-9]+}}, metadata {{.*}})
+; CHECK: call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !{{[0-9]+}}, metadata {{.*}})
+; CHECK: call void @llvm.dbg.declare(metadata i32* %i, metadata !{{[0-9]+}}, metadata {{.*}})
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.9.0"
@@ -21,9 +21,9 @@ entry:
   %argv.addr = alloca i8**, align 8
   store i32 0, i32* %retval
   store i32 %argc, i32* %argc.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14, metadata !{metadata !"0x102"}), !dbg !15
+  call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !14, metadata !{!"0x102"}), !dbg !15
   store i8** %argv, i8*** %argv.addr, align 8
-  call void @llvm.dbg.declare(metadata !{i8*** %argv.addr}, metadata !16, metadata !{metadata !"0x102"}), !dbg !15
+  call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !16, metadata !{!"0x102"}), !dbg !15
   %0 = load i32* %argc.addr, align 4, !dbg !17
   %1 = load i8*** %argv.addr, align 8, !dbg !17
   call void @test(i32 %0, i8** %1), !dbg !17
@@ -37,24 +37,24 @@ declare void @test(i32, i8**)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!21}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.3 (trunk 173515)\001\00\000\00\000", metadata !20, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00main\00main\00\003\000\001\000\006\00256\000\004", metadata !20, null, metadata !7, null, i32 (i32, i8**)* @main, null, null, metadata !1} ; [ DW_TAG_subprogram ]
-!6 = metadata !{metadata !"0x29", metadata !20} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{metadata !9, metadata !9, metadata !10}
-!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
-!10 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !11} ; [ DW_TAG_pointer_type ]
-!11 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !12} ; [ DW_TAG_pointer_type ]
-!12 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !13} ; [ DW_TAG_const_type ]
-!13 = metadata !{metadata !"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ]
-!14 = metadata !{metadata !"0x101\00argc\0016777219\000", metadata !5, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ]
-!15 = metadata !{i32 3, i32 0, metadata !5, null}
-!16 = metadata !{metadata !"0x101\00argv\0033554435\000", metadata !5, metadata !6, metadata !10} ; [ DW_TAG_arg_variable ]
-!17 = metadata !{i32 5, i32 0, metadata !18, null}
-!18 = metadata !{metadata !"0xb\004\000\000", metadata !20, metadata !5} ; [ DW_TAG_lexical_block ]
-!19 = metadata !{i32 6, i32 0, metadata !18, null}
-!20 = metadata !{metadata !"main.cpp", metadata !"/private/tmp"}
-!21 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.3 (trunk 173515)\001\00\000\00\000", !20, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00main\00main\00\003\000\001\000\006\00256\000\004", !20, null, !7, null, i32 (i32, i8**)* @main, null, null, !1} ; [ DW_TAG_subprogram ]
+!6 = !{!"0x29", !20} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{!9, !9, !10}
+!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
+!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !11} ; [ DW_TAG_pointer_type ]
+!11 = !{!"0xf\00\000\0064\0064\000\000", null, null, !12} ; [ DW_TAG_pointer_type ]
+!12 = !{!"0x26\00\000\000\000\000\000", null, null, !13} ; [ DW_TAG_const_type ]
+!13 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ]
+!14 = !{!"0x101\00argc\0016777219\000", !5, !6, !9} ; [ DW_TAG_arg_variable ]
+!15 = !MDLocation(line: 3, scope: !5)
+!16 = !{!"0x101\00argv\0033554435\000", !5, !6, !10} ; [ DW_TAG_arg_variable ]
+!17 = !MDLocation(line: 5, scope: !18)
+!18 = !{!"0xb\004\000\000", !20, !5} ; [ DW_TAG_lexical_block ]
+!19 = !MDLocation(line: 6, scope: !18)
+!20 = !{!"main.cpp", !"/private/tmp"}
+!21 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/DbgDeclare2.ll b/test/Linker/DbgDeclare2.ll
index d27ce53..2f01b0e 100644
--- a/test/Linker/DbgDeclare2.ll
+++ b/test/Linker/DbgDeclare2.ll
@@ -11,10 +11,10 @@ entry:
   %argv.addr = alloca i8**, align 8
   %i = alloca i32, align 4
   store i32 %argc, i32* %argc.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14, metadata !{metadata !"0x102"}), !dbg !15
+  call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !14, metadata !{!"0x102"}), !dbg !15
   store i8** %argv, i8*** %argv.addr, align 8
-  call void @llvm.dbg.declare(metadata !{i8*** %argv.addr}, metadata !16, metadata !{metadata !"0x102"}), !dbg !15
-  call void @llvm.dbg.declare(metadata !{i32* %i}, metadata !17, metadata !{metadata !"0x102"}), !dbg !20
+  call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !16, metadata !{!"0x102"}), !dbg !15
+  call void @llvm.dbg.declare(metadata i32* %i, metadata !17, metadata !{!"0x102"}), !dbg !20
   store i32 0, i32* %i, align 4, !dbg !20
   br label %for.cond, !dbg !20
 
@@ -50,30 +50,30 @@ declare i32 @puts(i8*)
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!27}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.3 (trunk 173515)\001\00\000\00\000", metadata !25, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !5}
-!5 = metadata !{metadata !"0x2e\00print_args\00print_args\00test\004\000\001\000\006\00256\000\005", metadata !26, null, metadata !7, null, void (i32, i8**)* @test, null, null, metadata !1} ; [ DW_TAG_subprogram ]
-!6 = metadata !{metadata !"0x29", metadata !26} ; [ DW_TAG_file_type ]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{null, metadata !9, metadata !10}
-!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
-!10 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !11} ; [ DW_TAG_pointer_type ]
-!11 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !12} ; [ DW_TAG_pointer_type ]
-!12 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !13} ; [ DW_TAG_const_type ]
-!13 = metadata !{metadata !"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ]
-!14 = metadata !{metadata !"0x101\00argc\0016777220\000", metadata !5, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ]
-!15 = metadata !{i32 4, i32 0, metadata !5, null}
-!16 = metadata !{metadata !"0x101\00argv\0033554436\000", metadata !5, metadata !6, metadata !10} ; [ DW_TAG_arg_variable ]
-!17 = metadata !{metadata !"0x100\00i\006\000", metadata !18, metadata !6, metadata !9} ; [ DW_TAG_auto_variable ]
-!18 = metadata !{metadata !"0xb\006\000\001", metadata !26, metadata !19} ; [ DW_TAG_lexical_block ]
-!19 = metadata !{metadata !"0xb\005\000\000", metadata !26, metadata !5} ; [ DW_TAG_lexical_block ]
-!20 = metadata !{i32 6, i32 0, metadata !18, null}
-!21 = metadata !{i32 8, i32 0, metadata !22, null}
-!22 = metadata !{metadata !"0xb\007\000\002", metadata !26, metadata !18} ; [ DW_TAG_lexical_block ]
-!23 = metadata !{i32 9, i32 0, metadata !22, null}
-!24 = metadata !{i32 10, i32 0, metadata !19, null}
-!25 = metadata !{metadata !"main.cpp", metadata !"/private/tmp"}
-!26 = metadata !{metadata !"test.cpp", metadata !"/private/tmp"}
-!27 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.3 (trunk 173515)\001\00\000\00\000", !25, !2, !2, !3, !2, null} ; [ DW_TAG_compile_unit ]
+!1 = !{!2}
+!2 = !{i32 0}
+!3 = !{!5}
+!5 = !{!"0x2e\00print_args\00print_args\00test\004\000\001\000\006\00256\000\005", !26, null, !7, null, void (i32, i8**)* @test, null, null, !1} ; [ DW_TAG_subprogram ]
+!6 = !{!"0x29", !26} ; [ DW_TAG_file_type ]
+!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{null, !9, !10}
+!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
+!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !11} ; [ DW_TAG_pointer_type ]
+!11 = !{!"0xf\00\000\0064\0064\000\000", null, null, !12} ; [ DW_TAG_pointer_type ]
+!12 = !{!"0x26\00\000\000\000\000\000", null, null, !13} ; [ DW_TAG_const_type ]
+!13 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ]
+!14 = !{!"0x101\00argc\0016777220\000", !5, !6, !9} ; [ DW_TAG_arg_variable ]
+!15 = !MDLocation(line: 4, scope: !5)
+!16 = !{!"0x101\00argv\0033554436\000", !5, !6, !10} ; [ DW_TAG_arg_variable ]
+!17 = !{!"0x100\00i\006\000", !18, !6, !9} ; [ DW_TAG_auto_variable ]
+!18 = !{!"0xb\006\000\001", !26, !19} ; [ DW_TAG_lexical_block ]
+!19 = !{!"0xb\005\000\000", !26, !5} ; [ DW_TAG_lexical_block ]
+!20 = !MDLocation(line: 6, scope: !18)
+!21 = !MDLocation(line: 8, scope: !22)
+!22 = !{!"0xb\007\000\002", !26, !18} ; [ DW_TAG_lexical_block ]
+!23 = !MDLocation(line: 9, scope: !22)
+!24 = !MDLocation(line: 10, scope: !19)
+!25 = !{!"main.cpp", !"/private/tmp"}
+!26 = !{!"test.cpp", !"/private/tmp"}
+!27 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/Inputs/alignment.ll b/test/Linker/Inputs/alignment.ll
new file mode 100644
index 0000000..337cb8e
--- /dev/null
+++ b/test/Linker/Inputs/alignment.ll
@@ -0,0 +1,12 @@
+@A = global i32 7, align 8
+@B = global i32 7, align 4
+
+define void @C() align 8 {
+  ret void
+}
+
+define void @D() align 4 {
+  ret void
+}
+
+@E = common global i32 0, align 8
diff --git a/test/Linker/Inputs/apple-version/1.ll b/test/Linker/Inputs/apple-version/1.ll
new file mode 100644
index 0000000..5cafa5e
--- /dev/null
+++ b/test/Linker/Inputs/apple-version/1.ll
@@ -0,0 +1 @@
+target triple = "x86_64-apple-macosx10.10.0"
diff --git a/test/Linker/Inputs/apple-version/2.ll b/test/Linker/Inputs/apple-version/2.ll
new file mode 100644
index 0000000..b63ea1f
--- /dev/null
+++ b/test/Linker/Inputs/apple-version/2.ll
@@ -0,0 +1 @@
+target triple = "x86_64-apple-macosx10.8.0"
diff --git a/test/Linker/Inputs/apple-version/3.ll b/test/Linker/Inputs/apple-version/3.ll
new file mode 100644
index 0000000..68e58ca
--- /dev/null
+++ b/test/Linker/Inputs/apple-version/3.ll
@@ -0,0 +1 @@
+target triple = "i386-apple-macosx10.9.0"
diff --git a/test/Linker/Inputs/apple-version/4.ll b/test/Linker/Inputs/apple-version/4.ll
new file mode 100644
index 0000000..467a634
--- /dev/null
+++ b/test/Linker/Inputs/apple-version/4.ll
@@ -0,0 +1 @@
+target triple = "x86_64h-apple-macosx10.9.0"
diff --git a/test/Linker/Inputs/comdat.ll b/test/Linker/Inputs/comdat.ll
index fdcca49..74a805c 100644
--- a/test/Linker/Inputs/comdat.ll
+++ b/test/Linker/Inputs/comdat.ll
@@ -2,19 +2,19 @@ target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 
 $foo = comdat largest
-@foo = global i64 43, comdat $foo
+@foo = global i64 43, comdat($foo)
 
-define i32 @bar() comdat $foo {
+define i32 @bar() comdat($foo) {
   ret i32 43
 }
 
 $qux = comdat largest
-@qux = global i32 13, comdat $qux
-@in_unselected_group = global i32 13, comdat $qux
+@qux = global i32 13, comdat($qux)
+@in_unselected_group = global i32 13, comdat($qux)
 
-define i32 @baz() comdat $qux {
+define i32 @baz() comdat($qux) {
   ret i32 13
 }
 
 $any = comdat any
-@any = global i64 7, comdat $any
+@any = global i64 7, comdat($any)
diff --git a/test/Linker/Inputs/comdat2.ll b/test/Linker/Inputs/comdat2.ll
index 9e18304..ed2af62 100644
--- a/test/Linker/Inputs/comdat2.ll
+++ b/test/Linker/Inputs/comdat2.ll
@@ -1,2 +1,2 @@
 $foo = comdat largest
-@foo = global i64 43, comdat $foo
+@foo = global i64 43, comdat($foo)
diff --git a/test/Linker/Inputs/comdat3.ll b/test/Linker/Inputs/comdat3.ll
index 06f08b9..a1b730f 100644
--- a/test/Linker/Inputs/comdat3.ll
+++ b/test/Linker/Inputs/comdat3.ll
@@ -1,2 +1,2 @@
 $foo = comdat noduplicates
-@foo = global i64 43, comdat $foo
+@foo = global i64 43, comdat($foo)
diff --git a/test/Linker/Inputs/comdat4.ll b/test/Linker/Inputs/comdat4.ll
index bbfe3f7..5b4b812 100644
--- a/test/Linker/Inputs/comdat4.ll
+++ b/test/Linker/Inputs/comdat4.ll
@@ -2,4 +2,4 @@ target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 
 $foo = comdat samesize
-@foo = global i64 42, comdat $foo
+@foo = global i64 42, comdat($foo)
diff --git a/test/Linker/Inputs/comdat5.ll b/test/Linker/Inputs/comdat5.ll
index 800af18..98c42b7 100644
--- a/test/Linker/Inputs/comdat5.ll
+++ b/test/Linker/Inputs/comdat5.ll
@@ -1,15 +1,9 @@
 target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
-target triple = "i686-pc-windows-msvc"
 
-%MSRTTICompleteObjectLocator = type { i32, i32, i32, i8*, %MSRTTIClassHierarchyDescriptor* }
-%MSRTTIClassHierarchyDescriptor = type { i32, i32, i32, %MSRTTIBaseClassDescriptor** }
-%MSRTTIBaseClassDescriptor = type { i8*, i32, i32, i32, i32, i32, %MSRTTIClassHierarchyDescriptor* }
-%struct.S = type { i32 (...)** }
+$foo = comdat largest
 
-$"\01??_7S@@6B@" = comdat largest
+@zed = external constant i8
+@some_name = private unnamed_addr constant [2 x i8*] [i8* @zed, i8* bitcast (void ()* @bar to i8*)], comdat($foo)
+@foo = alias getelementptr([2 x i8*]* @some_name, i32 0, i32 1)
 
-@"\01??_R4S@@6B@" = external constant %MSRTTICompleteObjectLocator
-@some_name = private unnamed_addr constant [2 x i8*] [i8* bitcast (%MSRTTICompleteObjectLocator* @"\01??_R4S@@6B@" to i8*), i8* bitcast (void (%struct.S*, i32)* @"\01??_GS@@UAEPAXI@Z" to i8*)], comdat $"\01??_7S@@6B@"
-@"\01??_7S@@6B@" = alias getelementptr([2 x i8*]* @some_name, i32 0, i32 1)
-
-declare x86_thiscallcc void @"\01??_GS@@UAEPAXI@Z"(%struct.S*, i32) unnamed_addr
+declare void @bar() unnamed_addr
diff --git a/test/Linker/Inputs/comdat8.ll b/test/Linker/Inputs/comdat8.ll
index eaa9625..a2833b0 100644
--- a/test/Linker/Inputs/comdat8.ll
+++ b/test/Linker/Inputs/comdat8.ll
@@ -1,4 +1,4 @@
 $c1 = comdat largest
 
-@some_name = private unnamed_addr constant i32 42, comdat $c1
+@some_name = private unnamed_addr constant i32 42, comdat($c1)
 @c1 = alias i32* @some_name
diff --git a/test/Linker/Inputs/comdat9.ll b/test/Linker/Inputs/comdat9.ll
deleted file mode 100644
index 679dbde..0000000
--- a/test/Linker/Inputs/comdat9.ll
+++ /dev/null
@@ -1,5 +0,0 @@
-$c = comdat any
-@a = alias void ()* @f
-define internal void @f() comdat $c {
-  ret void
-}
diff --git a/test/Linker/Inputs/distinct.ll b/test/Linker/Inputs/distinct.ll
new file mode 100644
index 0000000..07ae224
--- /dev/null
+++ b/test/Linker/Inputs/distinct.ll
@@ -0,0 +1,13 @@
+@global = linkonce global i32 0
+
+!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8}
+
+!0 = !{}
+!1 = !{!0}
+!2 = !{i32* @global}
+!3 = distinct !{}
+!4 = distinct !{!0}
+!5 = distinct !{i32* @global}
+!6 = !{!3}
+!7 = !{!4}
+!8 = !{!5}
diff --git a/test/Linker/Inputs/ident.a.ll b/test/Linker/Inputs/ident.a.ll
index ebda940..3c3fb19 100644
--- a/test/Linker/Inputs/ident.a.ll
+++ b/test/Linker/Inputs/ident.a.ll
@@ -1,3 +1,3 @@
 !llvm.ident = !{!0, !1}
-!0 = metadata !{metadata !"Compiler V1"}
-!1 = metadata !{metadata !"Compiler V2"}
+!0 = !{!"Compiler V1"}
+!1 = !{!"Compiler V2"}
diff --git a/test/Linker/Inputs/ident.b.ll b/test/Linker/Inputs/ident.b.ll
index 21ee1d8..d9daf85 100644
--- a/test/Linker/Inputs/ident.b.ll
+++ b/test/Linker/Inputs/ident.b.ll
@@ -1,2 +1,2 @@
 !llvm.ident = !{!0}
-!0 = metadata !{metadata !"Compiler V3"}
+!0 = !{!"Compiler V3"}
diff --git a/test/Linker/Inputs/mdlocation.ll b/test/Linker/Inputs/mdlocation.ll
new file mode 100644
index 0000000..f85c1dc
--- /dev/null
+++ b/test/Linker/Inputs/mdlocation.ll
@@ -0,0 +1,13 @@
+!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9}
+
+!0 = !{} ; Use this as a scope.
+!1 = !MDLocation(line: 3, column: 7, scope: !0)
+!2 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !1)
+!3 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !2)
+!4 = distinct !{} ; Test actual remapping.
+!5 = !MDLocation(line: 3, column: 7, scope: !4)
+!6 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !5)
+!7 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !6)
+; Test distinct nodes.
+!8 = distinct !MDLocation(line: 3, column: 7, scope: !0)
+!9 = distinct !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !8)
diff --git a/test/Linker/Inputs/module-flags-dont-change-others.ll b/test/Linker/Inputs/module-flags-dont-change-others.ll
new file mode 100644
index 0000000..61d57e5
--- /dev/null
+++ b/test/Linker/Inputs/module-flags-dont-change-others.ll
@@ -0,0 +1,8 @@
+!llvm.module.flags = !{!3, !4, !5}
+
+!0 = !{}
+!1 = !{!0}
+!2 = !{!0, !1}
+!3 = !{i32 4, !"foo", i32 37} ; Override the "foo" value.
+!4 = !{i32 5, !"bar", !1}
+!5 = !{i32 6, !"baz", !2}
diff --git a/test/Linker/Inputs/module-flags-pic-2-b.ll b/test/Linker/Inputs/module-flags-pic-2-b.ll
index 228e04a..0d78caf 100644
--- a/test/Linker/Inputs/module-flags-pic-2-b.ll
+++ b/test/Linker/Inputs/module-flags-pic-2-b.ll
@@ -1,3 +1,3 @@
-!0 = metadata !{ i32 1, metadata !"PIC Level", i32 2 }
+!0 = !{ i32 1, !"PIC Level", i32 2 }
 
 !llvm.module.flags = !{!0}
diff --git a/test/Linker/Inputs/opaque.ll b/test/Linker/Inputs/opaque.ll
new file mode 100644
index 0000000..2b0d7d3
--- /dev/null
+++ b/test/Linker/Inputs/opaque.ll
@@ -0,0 +1,13 @@
+%A = type { }
+%B = type { %D, %E, %B* }
+
+%D = type { %E }
+%E = type opaque
+
+@g2 = external global %A
+@g3 = external global %B
+
+define void @f1()  {
+  getelementptr %A* null, i32 0
+  ret void
+}
diff --git a/test/Linker/Inputs/pr21374.ll b/test/Linker/Inputs/pr21374.ll
new file mode 100644
index 0000000..fcddeaf
--- /dev/null
+++ b/test/Linker/Inputs/pr21374.ll
@@ -0,0 +1,4 @@
+%foo = type { i8* }
+define void @g(%foo* %x) {
+  ret void
+}
diff --git a/test/Linker/Inputs/replaced-function-matches-first-subprogram.ll b/test/Linker/Inputs/replaced-function-matches-first-subprogram.ll
new file mode 100644
index 0000000..a5de89f
--- /dev/null
+++ b/test/Linker/Inputs/replaced-function-matches-first-subprogram.ll
@@ -0,0 +1,27 @@
+%struct.Class = type { i8 }
+
+define weak_odr i32 @_ZN5ClassIiE3fooEv(%struct.Class* %this) align 2 {
+entry:
+  %this.addr = alloca %struct.Class*, align 8
+  store %struct.Class* %this, %struct.Class** %this.addr, align 8
+  %this1 = load %struct.Class** %this.addr
+  ret i32 0, !dbg !12
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!8, !9, !10}
+!llvm.ident = !{!11}
+
+!0 = !{!"0x11\004\00clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)\000\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2/t2.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"t2.cpp", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2"}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x2e\00foo\00foo\00\002\000\001\000\000\00256\000\002", !5, !6, !7, null, i32 (%struct.Class*)* @_ZN5ClassIiE3fooEv, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
+!5 = !{!"../t.h", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2"}
+!6 = !{!"0x29", !5}    ; [ DW_TAG_file_type ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2/../t.h]
+!7 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{i32 2, !"Dwarf Version", i32 2}
+!9 = !{i32 2, !"Debug Info Version", i32 2}
+!10 = !{i32 1, !"PIC Level", i32 2}
+!11 = !{!"clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)"}
+!12 = !MDLocation(line: 2, column: 15, scope: !4)
diff --git a/test/Linker/Inputs/targettriple-a.ll b/test/Linker/Inputs/targettriple-a.ll
index 296d2df..b8c7901 100644
--- a/test/Linker/Inputs/targettriple-a.ll
+++ b/test/Linker/Inputs/targettriple-a.ll
@@ -1 +1 @@
-target triple = "e"
+target triple = "x86_64-unknown-linux-gnu"
diff --git a/test/Linker/Inputs/targettriple-b.ll b/test/Linker/Inputs/targettriple-b.ll
index cca872e..0122b4a 100644
--- a/test/Linker/Inputs/targettriple-b.ll
+++ b/test/Linker/Inputs/targettriple-b.ll
@@ -1 +1 @@
-target triple = "E"
+target triple = "i386-unknown-linux-gnu"
diff --git a/test/Linker/Inputs/targettriple-c.ll b/test/Linker/Inputs/targettriple-c.ll
new file mode 100644
index 0000000..e669a4c
--- /dev/null
+++ b/test/Linker/Inputs/targettriple-c.ll
@@ -0,0 +1 @@
+target triple = "x86_64h-unknown-linux-gnu"
diff --git a/test/Linker/testlink2.ll b/test/Linker/Inputs/testlink.ll
index ff8e529..89f02ba 100644
--- a/test/Linker/testlink2.ll
+++ b/test/Linker/Inputs/testlink.ll
@@ -1,7 +1,3 @@
-; This file is used by testlink1.ll, so it doesn't actually do anything itself
-;
-; RUN: true
-
 %intlist = type { %intlist*, i32 }
 
 
@@ -21,6 +17,8 @@
 ;; Intern in both testlink[12].ll
 @Intern1 = internal constant i32 52
 
+@Use2Intern1 = global i32* @Intern1
+
 ;; Intern in one but not in other
 @Intern2 = constant i32 12345
 
diff --git a/test/Linker/Inputs/type-unique-alias.ll b/test/Linker/Inputs/type-unique-alias.ll
new file mode 100644
index 0000000..3ee162c
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-alias.ll
@@ -0,0 +1,4 @@
+%u = type { i8 }
+
+@g2 = global %u zeroinitializer
+@a = weak alias %u* @g2
diff --git a/test/Linker/Inputs/type-unique-dst-types2.ll b/test/Linker/Inputs/type-unique-dst-types2.ll
new file mode 100644
index 0000000..b565c6d
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-dst-types2.ll
@@ -0,0 +1,3 @@
+%A.11 = type { %B }
+%B = type { i8 }
+@g1 = external global %A.11
diff --git a/test/Linker/Inputs/type-unique-dst-types3.ll b/test/Linker/Inputs/type-unique-dst-types3.ll
new file mode 100644
index 0000000..c5794ad
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-dst-types3.ll
@@ -0,0 +1,2 @@
+%A.11 = type opaque
+@g2 = external global %A.11
diff --git a/test/Linker/Inputs/type-unique-inheritance-a.ll b/test/Linker/Inputs/type-unique-inheritance-a.ll
index 31df5b2..c503919 100644
--- a/test/Linker/Inputs/type-unique-inheritance-a.ll
+++ b/test/Linker/Inputs/type-unique-inheritance-a.ll
@@ -52,8 +52,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %class.A, align 4
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !20, metadata !{metadata !"0x102"}), !dbg !21
-  call void @llvm.dbg.declare(metadata !{%class.A* %t}, metadata !22, metadata !{metadata !"0x102"}), !dbg !23
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !20, metadata !{!"0x102"}), !dbg !21
+  call void @llvm.dbg.declare(metadata %class.A* %t, metadata !22, metadata !{!"0x102"}), !dbg !23
   ret void, !dbg !24
 }
 
@@ -66,29 +66,29 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!19, !25}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git f54e02f969d02d640103db73efc30c45439fceab) (http://llvm.org/git/llvm.git 284353b55896cb1babfaa7add7c0a363245342d2)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/inher/foo.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"foo.cpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !4, metadata !8}
-!4 = metadata !{metadata !"0x2\00A\003\0064\0032\000\000\000", metadata !5, null, null, metadata !6, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 3, size 64, align 32, offset 0] [def] [from ]
-!5 = metadata !{metadata !"./a.hpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!6 = metadata !{metadata !7, metadata !13}
-!7 = metadata !{metadata !"0x1c\00\000\000\000\000\001", null, metadata !"_ZTS1A", metadata !8} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [private] [from Base]
-!8 = metadata !{metadata !"0x2\00Base\003\0032\0032\000\000\000", metadata !9, null, null, metadata !10, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_class_type ] [Base] [line 3, size 32, align 32, offset 0] [def] [from ]
-!9 = metadata !{metadata !"./b.hpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!10 = metadata !{metadata !11}
-!11 = metadata !{metadata !"0xd\00b\004\0032\0032\000\001", metadata !9, metadata !"_ZTS4Base", metadata !12} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 0] [private] [from int]
-!12 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!13 = metadata !{metadata !"0xd\00x\004\0032\0032\0032\001", metadata !5, metadata !"_ZTS1A", metadata !12} ; [ DW_TAG_member ] [x] [line 4, size 32, align 32, offset 32] [private] [from int]
-!14 = metadata !{metadata !15}
-!15 = metadata !{metadata !"0x2e\00f\00f\00_Z1fi\005\000\001\000\006\00256\000\005", metadata !1, metadata !16, metadata !17, null, void (i32)* @_Z1fi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 5] [def] [f]
-!16 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/inher/foo.cpp]
-!17 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!18 = metadata !{null, metadata !12}
-!19 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!20 = metadata !{metadata !"0x101\00a\0016777221\000", metadata !15, metadata !16, metadata !12} ; [ DW_TAG_arg_variable ] [a] [line 5]
-!21 = metadata !{i32 5, i32 0, metadata !15, null}
-!22 = metadata !{metadata !"0x100\00t\006\000", metadata !15, metadata !16, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 6]
-!23 = metadata !{i32 6, i32 0, metadata !15, null}
-!24 = metadata !{i32 7, i32 0, metadata !15, null}
-!25 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git f54e02f969d02d640103db73efc30c45439fceab) (http://llvm.org/git/llvm.git 284353b55896cb1babfaa7add7c0a363245342d2)\000\00\000\00\000", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/inher/foo.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"foo.cpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!2 = !{i32 0}
+!3 = !{!4, !8}
+!4 = !{!"0x2\00A\003\0064\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 3, size 64, align 32, offset 0] [def] [from ]
+!5 = !{!"./a.hpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!6 = !{!7, !13}
+!7 = !{!"0x1c\00\000\000\000\000\001", null, !"_ZTS1A", !8} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [private] [from Base]
+!8 = !{!"0x2\00Base\003\0032\0032\000\000\000", !9, null, null, !10, null, null, !"_ZTS4Base"} ; [ DW_TAG_class_type ] [Base] [line 3, size 32, align 32, offset 0] [def] [from ]
+!9 = !{!"./b.hpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!10 = !{!11}
+!11 = !{!"0xd\00b\004\0032\0032\000\001", !9, !"_ZTS4Base", !12} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 0] [private] [from int]
+!12 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!13 = !{!"0xd\00x\004\0032\0032\0032\001", !5, !"_ZTS1A", !12} ; [ DW_TAG_member ] [x] [line 4, size 32, align 32, offset 32] [private] [from int]
+!14 = !{!15}
+!15 = !{!"0x2e\00f\00f\00_Z1fi\005\000\001\000\006\00256\000\005", !1, !16, !17, null, void (i32)* @_Z1fi, null, null, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [f]
+!16 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/inher/foo.cpp]
+!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!18 = !{null, !12}
+!19 = !{i32 2, !"Dwarf Version", i32 2}
+!20 = !{!"0x101\00a\0016777221\000", !15, !16, !12} ; [ DW_TAG_arg_variable ] [a] [line 5]
+!21 = !MDLocation(line: 5, scope: !15)
+!22 = !{!"0x100\00t\006\000", !15, !16, !4} ; [ DW_TAG_auto_variable ] [t] [line 6]
+!23 = !MDLocation(line: 6, scope: !15)
+!24 = !MDLocation(line: 7, scope: !15)
+!25 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/Inputs/type-unique-inheritance-b.ll b/test/Linker/Inputs/type-unique-inheritance-b.ll
index d915e45..d3b9dea 100644
--- a/test/Linker/Inputs/type-unique-inheritance-b.ll
+++ b/test/Linker/Inputs/type-unique-inheritance-b.ll
@@ -10,8 +10,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %class.B, align 8
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !28, metadata !{metadata !"0x102"}), !dbg !29
-  call void @llvm.dbg.declare(metadata !{%class.B* %t}, metadata !30, metadata !{metadata !"0x102"}), !dbg !31
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !28, metadata !{!"0x102"}), !dbg !29
+  call void @llvm.dbg.declare(metadata %class.B* %t, metadata !30, metadata !{!"0x102"}), !dbg !31
   ret void, !dbg !32
 }
 
@@ -24,7 +24,7 @@ entry:
   %retval = alloca i32, align 4
   %a = alloca %class.A, align 4
   store i32 0, i32* %retval
-  call void @llvm.dbg.declare(metadata !{%class.A* %a}, metadata !33, metadata !{metadata !"0x102"}), !dbg !34
+  call void @llvm.dbg.declare(metadata %class.A* %a, metadata !33, metadata !{!"0x102"}), !dbg !34
   call void @_Z1fi(i32 0), !dbg !35
   call void @_Z1gi(i32 1), !dbg !36
   ret i32 0, !dbg !37
@@ -40,42 +40,42 @@ attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!27, !38}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git f54e02f969d02d640103db73efc30c45439fceab) (http://llvm.org/git/llvm.git 284353b55896cb1babfaa7add7c0a363245342d2)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !19, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/inher/bar.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"bar.cpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !4, metadata !11, metadata !15}
-!4 = metadata !{metadata !"0x2\00B\007\00128\0064\000\000\000", metadata !5, null, null, metadata !6, null, null, metadata !"_ZTS1B"} ; [ DW_TAG_class_type ] [B] [line 7, size 128, align 64, offset 0] [def] [from ]
-!5 = metadata !{metadata !"./b.hpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!6 = metadata !{metadata !7, metadata !9}
-!7 = metadata !{metadata !"0xd\00bb\008\0032\0032\000\001", metadata !5, metadata !"_ZTS1B", metadata !8} ; [ DW_TAG_member ] [bb] [line 8, size 32, align 32, offset 0] [private] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !"0xd\00a\009\0064\0064\0064\001", metadata !5, metadata !"_ZTS1B", metadata !10} ; [ DW_TAG_member ] [a] [line 9, size 64, align 64, offset 64] [private] [from ]
-!10 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !11} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from A]
-!11 = metadata !{metadata !"0x2\00A\003\0064\0032\000\000\000", metadata !12, null, null, metadata !13, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 3, size 64, align 32, offset 0] [def] [from ]
-!12 = metadata !{metadata !"./a.hpp", metadata !"/Users/mren/c_testing/type_unique_air/inher"}
-!13 = metadata !{metadata !14, metadata !18}
-!14 = metadata !{metadata !"0x1c\00\000\000\000\000\001", null, metadata !"_ZTS1A", metadata !15} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [private] [from Base]
-!15 = metadata !{metadata !"0x2\00Base\003\0032\0032\000\000\000", metadata !5, null, null, metadata !16, null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_class_type ] [Base] [line 3, size 32, align 32, offset 0] [def] [from ]
-!16 = metadata !{metadata !17}
-!17 = metadata !{metadata !"0xd\00b\004\0032\0032\000\001", metadata !5, metadata !"_ZTS4Base", metadata !8} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 0] [private] [from int]
-!18 = metadata !{metadata !"0xd\00x\004\0032\0032\0032\001", metadata !12, metadata !"_ZTS1A", metadata !8} ; [ DW_TAG_member ] [x] [line 4, size 32, align 32, offset 32] [private] [from int]
-!19 = metadata !{metadata !20, metadata !24}
-!20 = metadata !{metadata !"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", metadata !1, metadata !21, metadata !22, null, void (i32)* @_Z1gi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
-!21 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/inher/bar.cpp]
-!22 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !23, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!23 = metadata !{null, metadata !8}
-!24 = metadata !{metadata !"0x2e\00main\00main\00\009\000\001\000\006\00256\000\009", metadata !1, metadata !21, metadata !25, null, i32 ()* @main, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 9] [def] [main]
-!25 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !26, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!26 = metadata !{metadata !8}
-!27 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!28 = metadata !{metadata !"0x101\00a\0016777220\000", metadata !20, metadata !21, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
-!29 = metadata !{i32 4, i32 0, metadata !20, null}
-!30 = metadata !{metadata !"0x100\00t\005\000", metadata !20, metadata !21, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
-!31 = metadata !{i32 5, i32 0, metadata !20, null}
-!32 = metadata !{i32 6, i32 0, metadata !20, null}
-!33 = metadata !{metadata !"0x100\00a\0010\000", metadata !24, metadata !21, metadata !11} ; [ DW_TAG_auto_variable ] [a] [line 10]
-!34 = metadata !{i32 10, i32 0, metadata !24, null}
-!35 = metadata !{i32 11, i32 0, metadata !24, null}
-!36 = metadata !{i32 12, i32 0, metadata !24, null}
-!37 = metadata !{i32 13, i32 0, metadata !24, null}
-!38 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git f54e02f969d02d640103db73efc30c45439fceab) (http://llvm.org/git/llvm.git 284353b55896cb1babfaa7add7c0a363245342d2)\000\00\000\00\000", !1, !2, !3, !19, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/inher/bar.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"bar.cpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!2 = !{i32 0}
+!3 = !{!4, !11, !15}
+!4 = !{!"0x2\00B\007\00128\0064\000\000\000", !5, null, null, !6, null, null, !"_ZTS1B"} ; [ DW_TAG_class_type ] [B] [line 7, size 128, align 64, offset 0] [def] [from ]
+!5 = !{!"./b.hpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!6 = !{!7, !9}
+!7 = !{!"0xd\00bb\008\0032\0032\000\001", !5, !"_ZTS1B", !8} ; [ DW_TAG_member ] [bb] [line 8, size 32, align 32, offset 0] [private] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!"0xd\00a\009\0064\0064\0064\001", !5, !"_ZTS1B", !10} ; [ DW_TAG_member ] [a] [line 9, size 64, align 64, offset 64] [private] [from ]
+!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !11} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from A]
+!11 = !{!"0x2\00A\003\0064\0032\000\000\000", !12, null, null, !13, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 3, size 64, align 32, offset 0] [def] [from ]
+!12 = !{!"./a.hpp", !"/Users/mren/c_testing/type_unique_air/inher"}
+!13 = !{!14, !18}
+!14 = !{!"0x1c\00\000\000\000\000\001", null, !"_ZTS1A", !15} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [private] [from Base]
+!15 = !{!"0x2\00Base\003\0032\0032\000\000\000", !5, null, null, !16, null, null, !"_ZTS4Base"} ; [ DW_TAG_class_type ] [Base] [line 3, size 32, align 32, offset 0] [def] [from ]
+!16 = !{!17}
+!17 = !{!"0xd\00b\004\0032\0032\000\001", !5, !"_ZTS4Base", !8} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 0] [private] [from int]
+!18 = !{!"0xd\00x\004\0032\0032\0032\001", !12, !"_ZTS1A", !8} ; [ DW_TAG_member ] [x] [line 4, size 32, align 32, offset 32] [private] [from int]
+!19 = !{!20, !24}
+!20 = !{!"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", !1, !21, !22, null, void (i32)* @_Z1gi, null, null, !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
+!21 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/inher/bar.cpp]
+!22 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !23, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!23 = !{null, !8}
+!24 = !{!"0x2e\00main\00main\00\009\000\001\000\006\00256\000\009", !1, !21, !25, null, i32 ()* @main, null, null, !2} ; [ DW_TAG_subprogram ] [line 9] [def] [main]
+!25 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !26, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!26 = !{!8}
+!27 = !{i32 2, !"Dwarf Version", i32 2}
+!28 = !{!"0x101\00a\0016777220\000", !20, !21, !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
+!29 = !MDLocation(line: 4, scope: !20)
+!30 = !{!"0x100\00t\005\000", !20, !21, !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
+!31 = !MDLocation(line: 5, scope: !20)
+!32 = !MDLocation(line: 6, scope: !20)
+!33 = !{!"0x100\00a\0010\000", !24, !21, !11} ; [ DW_TAG_auto_variable ] [a] [line 10]
+!34 = !MDLocation(line: 10, scope: !24)
+!35 = !MDLocation(line: 11, scope: !24)
+!36 = !MDLocation(line: 12, scope: !24)
+!37 = !MDLocation(line: 13, scope: !24)
+!38 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/Inputs/type-unique-name.ll b/test/Linker/Inputs/type-unique-name.ll
new file mode 100644
index 0000000..2553246
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-name.ll
@@ -0,0 +1,5 @@
+%t = type { i8 }
+
+define %t* @f() {
+  ret %t* null
+}
diff --git a/test/Linker/Inputs/type-unique-opaque.ll b/test/Linker/Inputs/type-unique-opaque.ll
new file mode 100644
index 0000000..872b601
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-opaque.ll
@@ -0,0 +1,6 @@
+%t = type { i8 }
+%t2 = type { %t*, i16 }
+
+define %t2* @f() {
+  ret %t2* null
+}
diff --git a/test/Linker/Inputs/type-unique-simple2-a.ll b/test/Linker/Inputs/type-unique-simple2-a.ll
index 5ed5c2a..6d6e93c 100644
--- a/test/Linker/Inputs/type-unique-simple2-a.ll
+++ b/test/Linker/Inputs/type-unique-simple2-a.ll
@@ -49,8 +49,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %struct.Base, align 8
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !17, metadata !{metadata !"0x102"}), !dbg !18
-  call void @llvm.dbg.declare(metadata !{%struct.Base* %t}, metadata !19, metadata !{metadata !"0x102"}), !dbg !20
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !17, metadata !{!"0x102"}), !dbg !18
+  call void @llvm.dbg.declare(metadata %struct.Base* %t, metadata !19, metadata !{!"0x102"}), !dbg !20
   ret void, !dbg !21
 }
 
@@ -63,26 +63,26 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!16, !22}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !11, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"foo.cpp", metadata !"."}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x13\00Base\001\00128\0064\000\000\000", metadata !5, null, null, metadata !6, 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 !"."}
-!6 = metadata !{metadata !7, metadata !9}
-!7 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !5, metadata !"_ZTS4Base", metadata !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !"0xd\00b\003\0064\0064\0064\000", metadata !5, metadata !"_ZTS4Base", metadata !10} ; [ DW_TAG_member ] [b] [line 3, size 64, align 64, offset 64] [from ]
-!10 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_pointer_type ]
-!11 = metadata !{metadata !12}
-!12 = metadata !{metadata !"0x2e\00f\00f\00_Z1fi\003\000\001\000\006\00256\000\003", metadata !1, metadata !13, metadata !14, null, void (i32)* @_Z1fi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
-!13 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [foo.cpp]
-!14 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!15 = metadata !{null, metadata !8}
-!16 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!17 = metadata !{metadata !"0x101\00a\0016777219\000", metadata !12, metadata !13, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 3]
-!18 = metadata !{i32 3, i32 0, metadata !12, null}
-!19 = metadata !{metadata !"0x100\00t\004\000", metadata !12, metadata !13, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 4]
-!20 = metadata !{i32 4, i32 0, metadata !12, null}
-!21 = metadata !{i32 5, i32 0, metadata !12, null}
-!22 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)\000\00\000\00\000", !1, !2, !3, !11, !2, !2} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"foo.cpp", !"."}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x13\00Base\001\00128\0064\000\000\000", !5, null, null, !6, null, null, !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 128, align 64, offset 0] [def] [from ]
+!5 = !{!"./a.hpp", !"."}
+!6 = !{!7, !9}
+!7 = !{!"0xd\00a\002\0032\0032\000\000", !5, !"_ZTS4Base", !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!"0xd\00b\003\0064\0064\0064\000", !5, !"_ZTS4Base", !10} ; [ DW_TAG_member ] [b] [line 3, size 64, align 64, offset 64] [from ]
+!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS4Base"} ; [ DW_TAG_pointer_type ]
+!11 = !{!12}
+!12 = !{!"0x2e\00f\00f\00_Z1fi\003\000\001\000\006\00256\000\003", !1, !13, !14, null, void (i32)* @_Z1fi, null, null, !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
+!13 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [foo.cpp]
+!14 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!15 = !{null, !8}
+!16 = !{i32 2, !"Dwarf Version", i32 2}
+!17 = !{!"0x101\00a\0016777219\000", !12, !13, !8} ; [ DW_TAG_arg_variable ] [a] [line 3]
+!18 = !MDLocation(line: 3, scope: !12)
+!19 = !{!"0x100\00t\004\000", !12, !13, !4} ; [ DW_TAG_auto_variable ] [t] [line 4]
+!20 = !MDLocation(line: 4, scope: !12)
+!21 = !MDLocation(line: 5, scope: !12)
+!22 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/Inputs/type-unique-simple2-b.ll b/test/Linker/Inputs/type-unique-simple2-b.ll
index 241218d..d3b2f7e 100644
--- a/test/Linker/Inputs/type-unique-simple2-b.ll
+++ b/test/Linker/Inputs/type-unique-simple2-b.ll
@@ -8,8 +8,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %struct.Base, align 8
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !20, metadata !{metadata !"0x102"}), !dbg !21
-  call void @llvm.dbg.declare(metadata !{%struct.Base* %t}, metadata !22, metadata !{metadata !"0x102"}), !dbg !23
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !20, metadata !{!"0x102"}), !dbg !21
+  call void @llvm.dbg.declare(metadata %struct.Base* %t, metadata !22, metadata !{!"0x102"}), !dbg !23
   ret void, !dbg !24
 }
 
@@ -36,32 +36,32 @@ attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!19, !28}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !11, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [bar.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"bar.cpp", metadata !"."}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x13\00Base\001\00128\0064\000\000\000", metadata !5, null, null, metadata !6, 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 !"."}
-!6 = metadata !{metadata !7, metadata !9}
-!7 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !5, metadata !"_ZTS4Base", metadata !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !"0xd\00b\003\0064\0064\0064\000", metadata !5, metadata !"_ZTS4Base", metadata !10} ; [ DW_TAG_member ] [b] [line 3, size 64, align 64, offset 64] [from ]
-!10 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS4Base"} ; [ DW_TAG_pointer_type ]
-!11 = metadata !{metadata !12, metadata !16}
-!12 = metadata !{metadata !"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", metadata !1, metadata !13, metadata !14, null, void (i32)* @_Z1gi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
-!13 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [bar.cpp]
-!14 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!15 = metadata !{null, metadata !8}
-!16 = metadata !{metadata !"0x2e\00main\00main\00\007\000\001\000\006\00256\000\007", metadata !1, metadata !13, metadata !17, null, i32 ()* @main, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [main]
-!17 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!18 = metadata !{metadata !8}
-!19 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!20 = metadata !{metadata !"0x101\00a\0016777220\000", metadata !12, metadata !13, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
-!21 = metadata !{i32 4, i32 0, metadata !12, null}
-!22 = metadata !{metadata !"0x100\00t\005\000", metadata !12, metadata !13, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
-!23 = metadata !{i32 5, i32 0, metadata !12, null}
-!24 = metadata !{i32 6, i32 0, metadata !12, null}
-!25 = metadata !{i32 8, i32 0, metadata !16, null}
-!26 = metadata !{i32 9, i32 0, metadata !16, null}
-!27 = metadata !{i32 10, i32 0, metadata !16, null}
-!28 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git 8a3f9e46cb988d2c664395b21910091e3730ae82) (http://llvm.org/git/llvm.git 4699e9549358bc77824a59114548eecc3f7c523c)\000\00\000\00\000", !1, !2, !3, !11, !2, !2} ; [ DW_TAG_compile_unit ] [bar.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"bar.cpp", !"."}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x13\00Base\001\00128\0064\000\000\000", !5, null, null, !6, null, null, !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 128, align 64, offset 0] [def] [from ]
+!5 = !{!"./a.hpp", !"."}
+!6 = !{!7, !9}
+!7 = !{!"0xd\00a\002\0032\0032\000\000", !5, !"_ZTS4Base", !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!"0xd\00b\003\0064\0064\0064\000", !5, !"_ZTS4Base", !10} ; [ DW_TAG_member ] [b] [line 3, size 64, align 64, offset 64] [from ]
+!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS4Base"} ; [ DW_TAG_pointer_type ]
+!11 = !{!12, !16}
+!12 = !{!"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", !1, !13, !14, null, void (i32)* @_Z1gi, null, null, !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
+!13 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [bar.cpp]
+!14 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!15 = !{null, !8}
+!16 = !{!"0x2e\00main\00main\00\007\000\001\000\006\00256\000\007", !1, !13, !17, null, i32 ()* @main, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [main]
+!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!18 = !{!8}
+!19 = !{i32 2, !"Dwarf Version", i32 2}
+!20 = !{!"0x101\00a\0016777220\000", !12, !13, !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
+!21 = !MDLocation(line: 4, scope: !12)
+!22 = !{!"0x100\00t\005\000", !12, !13, !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
+!23 = !MDLocation(line: 5, scope: !12)
+!24 = !MDLocation(line: 6, scope: !12)
+!25 = !MDLocation(line: 8, scope: !16)
+!26 = !MDLocation(line: 9, scope: !16)
+!27 = !MDLocation(line: 10, scope: !16)
+!28 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/Inputs/type-unique-unrelated2.ll b/test/Linker/Inputs/type-unique-unrelated2.ll
new file mode 100644
index 0000000..b7c2cec
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-unrelated2.ll
@@ -0,0 +1,7 @@
+%t = type { i8* }
+declare %t @g()
+
+define %t @g2() {
+ %x = call %t @g()
+ ret %t %x
+}
diff --git a/test/Linker/Inputs/type-unique-unrelated3.ll b/test/Linker/Inputs/type-unique-unrelated3.ll
new file mode 100644
index 0000000..e3f2dd9
--- /dev/null
+++ b/test/Linker/Inputs/type-unique-unrelated3.ll
@@ -0,0 +1,7 @@
+%t = type { i8* }
+declare %t @f()
+
+define %t @g() {
+ %x = call %t @f()
+ ret %t %x
+}
diff --git a/test/Linker/Inputs/unique-fwd-decl-b.ll b/test/Linker/Inputs/unique-fwd-decl-b.ll
index 240fbee..24099b8 100644
--- a/test/Linker/Inputs/unique-fwd-decl-b.ll
+++ b/test/Linker/Inputs/unique-fwd-decl-b.ll
@@ -1,3 +1,3 @@
 !b = !{!0}
-!0 = metadata !{metadata !1}
-!1 = metadata !{}
+!0 = !{!1}
+!1 = !{}
diff --git a/test/Linker/Inputs/unique-fwd-decl-order.ll b/test/Linker/Inputs/unique-fwd-decl-order.ll
new file mode 100644
index 0000000..e87ac84
--- /dev/null
+++ b/test/Linker/Inputs/unique-fwd-decl-order.ll
@@ -0,0 +1,6 @@
+!named = !{!0}
+
+; These nodes are intentionally in the opposite order from the test-driver.
+; However, they are numbered the same for the reader's convenience.
+!1 = !{}
+!0 = !{!1}
diff --git a/test/Linker/Inputs/visibility.ll b/test/Linker/Inputs/visibility.ll
index 2ab58fd..2cd112e 100644
--- a/test/Linker/Inputs/visibility.ll
+++ b/test/Linker/Inputs/visibility.ll
@@ -4,7 +4,7 @@ $c1 = comdat any
 @v1 = weak hidden global i32 0
 @v2 = weak protected global i32 0
 @v3 = weak hidden global i32 0
-@v4 = hidden global i32 1, comdat $c1
+@v4 = hidden global i32 1, comdat($c1)
 
 ; Aliases
 @a1 = weak hidden alias i32* @v1
diff --git a/test/Linker/alignment.ll b/test/Linker/alignment.ll
new file mode 100644
index 0000000..16cfe62
--- /dev/null
+++ b/test/Linker/alignment.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-link %p/alignment.ll %p/Inputs/alignment.ll -S | FileCheck %s
+; RUN: llvm-link %p/Inputs/alignment.ll %p/alignment.ll -S | FileCheck %s
+
+
+@A = weak global i32 7, align 4
+; CHECK-DAG: @A = global i32 7, align 8
+
+@B = weak global i32 7, align 8
+; CHECK-DAG: @B = global i32 7, align 4
+
+define weak void @C() align 4 {
+  ret void
+}
+; CHECK-DAG: define void @C() align 8 {
+
+define weak void @D() align 8 {
+  ret void
+}
+; CHECK-DAG: define void @D() align 4 {
+
+@E = common global i32 0, align 4
+; CHECK-DAG: @E = common global i32 0, align 8
diff --git a/test/Linker/apple-version.ll b/test/Linker/apple-version.ll
new file mode 100644
index 0000000..4dbc866
--- /dev/null
+++ b/test/Linker/apple-version.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-link %s %S/Inputs/apple-version/1.ll -S -o - 2>%t.err | FileCheck %s -check-prefix=CHECK1
+; RUN: cat %t.err | FileCheck --check-prefix=WARN1 --allow-empty %s
+; RUN: llvm-link %s %S/Inputs/apple-version/2.ll -S -o - 2>%t.err | FileCheck %s -check-prefix=CHECK2
+; RUN: cat %t.err | FileCheck --check-prefix=WARN2 --allow-empty %s
+; RUN: llvm-link %s %S/Inputs/apple-version/3.ll -S -o /dev/null 2>%t.err
+; RUN: cat %t.err | FileCheck --check-prefix=WARN3 %s
+; RUN: llvm-link %s %S/Inputs/apple-version/4.ll -S -o /dev/null 2>%t.err
+; RUN: cat %t.err | FileCheck --check-prefix=WARN4 --allow-empty %s
+
+; Check that the triple that has the larger version number is chosen and no
+; warnings are issued when the Triples differ only in version numbers.
+
+; CHECK1: target triple = "x86_64-apple-macosx10.10.0"
+; WARN1-NOT: WARNING
+; CHECK2: target triple = "x86_64-apple-macosx10.9.0"
+; WARN2-NOT: WARNING
+
+; i386 and x86_64 map to different ArchType enums.
+; WARN3: WARNING: Linking two modules of different target triples
+
+; x86_64h and x86_64 map to the same ArchType enum.
+; WARN4-NOT: WARNING
+
+target triple = "x86_64-apple-macosx10.9.0"
diff --git a/test/Linker/comdat.ll b/test/Linker/comdat.ll
index 4d2aef7..2a2ec3b 100644
--- a/test/Linker/comdat.ll
+++ b/test/Linker/comdat.ll
@@ -3,30 +3,30 @@ target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 
 $foo = comdat largest
-@foo = global i32 42, comdat $foo
+@foo = global i32 42, comdat($foo)
 
-define i32 @bar() comdat $foo {
+define i32 @bar() comdat($foo) {
   ret i32 42
 }
 
 $qux = comdat largest
-@qux = global i64 12, comdat $qux
+@qux = global i64 12, comdat($qux)
 
-define i32 @baz() comdat $qux {
+define i32 @baz() comdat($qux) {
   ret i32 12
 }
 
 $any = comdat any
-@any = global i64 6, comdat $any
+@any = global i64 6, comdat($any)
 
 ; CHECK: $qux = comdat largest
 ; CHECK: $foo = comdat largest
 ; CHECK: $any = comdat any
 
-; CHECK: @qux = global i64 12, comdat $qux
-; CHECK: @any = global i64 6, comdat $any
-; CHECK: @foo = global i64 43, comdat $foo
+; CHECK: @qux = global i64 12, comdat{{$}}
+; CHECK: @any = global i64 6, comdat{{$}}
+; CHECK: @foo = global i64 43, comdat{{$}}
 ; CHECK-NOT: @in_unselected_group = global i32 13, comdat $qux
 
-; CHECK: define i32 @baz() comdat $qux
-; CHECK: define i32 @bar() comdat $foo
+; CHECK: define i32 @baz() comdat($qux)
+; CHECK: define i32 @bar() comdat($foo)
diff --git a/test/Linker/comdat2.ll b/test/Linker/comdat2.ll
index 60c3d7c..ba8115d 100644
--- a/test/Linker/comdat2.ll
+++ b/test/Linker/comdat2.ll
@@ -3,5 +3,5 @@ target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 
 $foo = comdat samesize
-@foo = global i32 42, comdat $foo
+@foo = global i32 42, comdat($foo)
 ; CHECK: Linking COMDATs named 'foo': invalid selection kinds!
diff --git a/test/Linker/comdat3.ll b/test/Linker/comdat3.ll
index f0d9a48..3b5db0a 100644
--- a/test/Linker/comdat3.ll
+++ b/test/Linker/comdat3.ll
@@ -1,5 +1,5 @@
 ; RUN: not llvm-link %s %p/Inputs/comdat2.ll -S -o - 2>&1 | FileCheck %s
 
 $foo = comdat largest
-@foo = global i32 43, comdat $foo
+@foo = global i32 43, comdat($foo)
 ; CHECK: Linking COMDATs named 'foo': can't do size dependent selection without DataLayout!
diff --git a/test/Linker/comdat4.ll b/test/Linker/comdat4.ll
index 50c1778..cf7ac5f 100644
--- a/test/Linker/comdat4.ll
+++ b/test/Linker/comdat4.ll
@@ -1,5 +1,5 @@
 ; RUN: not llvm-link %s %p/Inputs/comdat3.ll -S -o - 2>&1 | FileCheck %s
 
 $foo = comdat noduplicates
-@foo = global i64 43, comdat $foo
+@foo = global i64 43, comdat($foo)
 ; CHECK: Linking COMDATs named 'foo': noduplicates has been violated!
diff --git a/test/Linker/comdat5.ll b/test/Linker/comdat5.ll
index 011fb8c..759688e 100644
--- a/test/Linker/comdat5.ll
+++ b/test/Linker/comdat5.ll
@@ -3,5 +3,5 @@ target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 
 $foo = comdat samesize
-@foo = global i32 42, comdat $foo
+@foo = global i32 42, comdat($foo)
 ; CHECK: Linking COMDATs named 'foo': SameSize violated!
diff --git a/test/Linker/comdat6.ll b/test/Linker/comdat6.ll
index efa5dfb..b5360a7 100644
--- a/test/Linker/comdat6.ll
+++ b/test/Linker/comdat6.ll
@@ -1,13 +1,10 @@
-; RUN: llvm-link %s %p/Inputs/comdat5.ll -S -o - 2>&1 | FileCheck %s
-; RUN: llvm-link %p/Inputs/comdat5.ll %s -S -o - 2>&1 | FileCheck %s
+; RUN: llvm-link %s %p/Inputs/comdat5.ll -S -o - | FileCheck %s
+; RUN: llvm-link %p/Inputs/comdat5.ll %s -S -o - | FileCheck %s
 target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
-target triple = "i686-pc-windows-msvc"
 
-%struct.S = type { i32 (...)** }
+$foo = comdat largest
+@foo = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (void ()* @bar to i8*)], comdat($foo)
 
-$"\01??_7S@@6B@" = comdat largest
-@"\01??_7S@@6B@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (void (%struct.S*, i32)* @"\01??_GS@@UAEPAXI@Z" to i8*)], comdat $"\01??_7S@@6B@"
+; CHECK: @foo = alias getelementptr inbounds ([2 x i8*]* @some_name, i32 0, i32 1)
 
-; CHECK: @"\01??_7S@@6B@" = alias getelementptr inbounds ([2 x i8*]* @some_name, i32 0, i32 1)
-
-declare x86_thiscallcc void @"\01??_GS@@UAEPAXI@Z"(%struct.S*, i32) unnamed_addr
+declare void @bar() unnamed_addr
diff --git a/test/Linker/comdat7.ll b/test/Linker/comdat7.ll
index d7e5e2d..ef938a7 100644
--- a/test/Linker/comdat7.ll
+++ b/test/Linker/comdat7.ll
@@ -2,7 +2,7 @@
 
 $c1 = comdat largest
 
-define void @c1() comdat $c1 {
+define void @c1() comdat($c1) {
   ret void
 }
 ; CHECK: GlobalVariable required for data dependent selection!
diff --git a/test/Linker/comdat8.ll b/test/Linker/comdat8.ll
index e6da583..5ca352a 100644
--- a/test/Linker/comdat8.ll
+++ b/test/Linker/comdat8.ll
@@ -2,7 +2,7 @@
 
 $c1 = comdat largest
 
-@some_name = private unnamed_addr constant i32 42, comdat $c1
+@some_name = private unnamed_addr constant i32 42, comdat($c1)
 @c1 = alias i8* inttoptr (i32 ptrtoint (i32* @some_name to i32) to i8*)
 
 ; CHECK: COMDAT key involves incomputable alias size.
diff --git a/test/Linker/comdat9.ll b/test/Linker/comdat9.ll
index eada8c6..f155a6e 100644
--- a/test/Linker/comdat9.ll
+++ b/test/Linker/comdat9.ll
@@ -1,7 +1,19 @@
-; RUN: llvm-link %s %p/Inputs/comdat9.ll -S -o - | FileCheck %s
+; RUN: llvm-link %s -S -o - | FileCheck %s
 
-; CHECK: $c = comdat any
-; CHECK: @a = alias void ()* @f
-; CHECK: define internal void @f() comdat $c {
-; CHECK:   ret void
-; CHECK: }
+$c = comdat any
+@a = alias void ()* @f
+define internal void @f() comdat($c) {
+  ret void
+}
+
+; CHECK-DAG: $c = comdat any
+; CHECK-DAG: @a = alias void ()* @f
+; CHECK-DAG: define internal void @f() comdat($c)
+
+$f2 = comdat largest
+define internal void @f2() comdat($f2) {
+  ret void
+}
+
+; CHECK-DAG: $f2 = comdat largest
+; CHECK-DAG: define internal void @f2() comdat {
diff --git a/test/Linker/constructor-comdat.ll b/test/Linker/constructor-comdat.ll
index 42e2d83..dfc8992 100644
--- a/test/Linker/constructor-comdat.ll
+++ b/test/Linker/constructor-comdat.ll
@@ -7,7 +7,7 @@ $_ZN3fooIiEC5Ev = comdat any
 @_ZN3fooIiEC1Ev = weak_odr alias void ()* @_ZN3fooIiEC2Ev
 ; CHECK: @_ZN3fooIiEC1Ev = weak_odr alias void ()* @_ZN3fooIiEC2Ev
 
-; CHECK: define weak_odr void @_ZN3fooIiEC2Ev() comdat $_ZN3fooIiEC5Ev {
-define weak_odr void @_ZN3fooIiEC2Ev() comdat $_ZN3fooIiEC5Ev {
+; CHECK: define weak_odr void @_ZN3fooIiEC2Ev() comdat($_ZN3fooIiEC5Ev) {
+define weak_odr void @_ZN3fooIiEC2Ev() comdat($_ZN3fooIiEC5Ev) {
   ret void
 }
diff --git a/test/Linker/debug-info-version-a.ll b/test/Linker/debug-info-version-a.ll
index 64a0583..352fcdc 100644
--- a/test/Linker/debug-info-version-a.ll
+++ b/test/Linker/debug-info-version-a.ll
@@ -4,13 +4,13 @@
 ; from the other file should be dropped.
 
 ; CHECK-NOT: metadata !{metadata !"b.c", metadata !""}
-; CHECK: metadata !{metadata !"a.c", metadata !""}
+; CHECK:  !"a.c", !""}
 ; CHECK-NOT: metadata !{metadata !"b.c", metadata !""}
 
 !llvm.module.flags = !{ !0 }
 !llvm.dbg.cu = !{!1}
 
-!0 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
-!1 = metadata !{metadata !"0x11\0012\00clang\001\00\000\00\000", metadata !2, metadata !3, metadata !3, metadata !3, null, null} ; [ DW_TAG_compile_unit ]
-!2 = metadata !{metadata !"a.c", metadata !""}
-!3 = metadata !{}
+!0 = !{i32 2, !"Debug Info Version", i32 2}
+!1 = !{!"0x11\0012\00clang\001\00\000\00\000", !2, !3, !3, !3, null, null} ; [ DW_TAG_compile_unit ]
+!2 = !{!"a.c", !""}
+!3 = !{}
diff --git a/test/Linker/debug-info-version-b.ll b/test/Linker/debug-info-version-b.ll
index 515291f..e494420 100644
--- a/test/Linker/debug-info-version-b.ll
+++ b/test/Linker/debug-info-version-b.ll
@@ -4,7 +4,7 @@
 !llvm.module.flags = !{ !0 }
 !llvm.dbg.cu = !{!1}
 
-!0 = metadata !{i32 2, metadata !"Debug Info Version", i32 42}
-!1 = metadata !{metadata !"0x11\0012\00clang\000\00", metadata !"I AM UNEXPECTED!"} ; [ DW_TAG_compile_unit ]
-!2 = metadata !{metadata !"b.c", metadata !""}
-!3 = metadata !{}
+!0 = !{i32 2, !"Debug Info Version", i32 42}
+!1 = !{!"0x11\0012\00clang\000\00", !"I AM UNEXPECTED!"} ; [ DW_TAG_compile_unit ]
+!2 = !{!"b.c", !""}
+!3 = !{}
diff --git a/test/Linker/distinct-cycles.ll b/test/Linker/distinct-cycles.ll
new file mode 100644
index 0000000..b9b496c
--- /dev/null
+++ b/test/Linker/distinct-cycles.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-link -o - -S %s | FileCheck %s
+; Crasher for PR22456: MapMetadata() should resolve all cycles.
+
+; CHECK: !named = !{!0}
+!named = !{!0}
+
+; CHECK: !0 = distinct !{!1}
+!0 = distinct !{!1}
+
+; CHECK-NEXT: !1 = !{!2}
+; CHECK-NEXT: !2 = !{!1}
+!1 = !{!2}
+!2 = !{!1}
diff --git a/test/Linker/distinct.ll b/test/Linker/distinct.ll
new file mode 100644
index 0000000..c8e5c89
--- /dev/null
+++ b/test/Linker/distinct.ll
@@ -0,0 +1,37 @@
+; RUN: llvm-link %s %S/Inputs/distinct.ll -o - -S | FileCheck %s
+
+; Test that distinct nodes from other modules remain distinct.  The @global
+; cases are the most interesting, since the operands actually need to be
+; remapped.
+
+; CHECK: @global = linkonce global i32 0
+@global = linkonce global i32 0
+
+; CHECK: !named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !0, !1, !2, !9, !10, !11, !12, !13, !14}
+!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8}
+
+; CHECK:      !0 = !{}
+; CHECK-NEXT: !1 = !{!0}
+; CHECK-NEXT: !2 = !{i32* @global}
+; CHECK-NEXT: !3 = distinct !{}
+; CHECK-NEXT: !4 = distinct !{!0}
+; CHECK-NEXT: !5 = distinct !{i32* @global}
+; CHECK-NEXT: !6 = !{!3}
+; CHECK-NEXT: !7 = !{!4}
+; CHECK-NEXT: !8 = !{!5}
+; CHECK-NEXT: !9 = distinct !{}
+; CHECK-NEXT: !10 = distinct !{!0}
+; CHECK-NEXT: !11 = distinct !{i32* @global}
+; CHECK-NEXT: !12 = !{!9}
+; CHECK-NEXT: !13 = !{!10}
+; CHECK-NEXT: !14 = !{!11}
+; CHECK-NOT:  !
+!0 = !{}
+!1 = !{!0}
+!2 = !{i32* @global}
+!3 = distinct !{}
+!4 = distinct !{!0}
+!5 = distinct !{i32* @global}
+!6 = !{!3}
+!7 = !{!4}
+!8 = !{!5}
diff --git a/test/Linker/linkmdnode.ll b/test/Linker/linkmdnode.ll
index 5f11580..2469c29 100644
--- a/test/Linker/linkmdnode.ll
+++ b/test/Linker/linkmdnode.ll
@@ -3,7 +3,7 @@
 ; RUN: llvm-link %t.bc %t2.bc
 
 
-!21 = metadata !{i32 42, metadata !"foobar"}
+!21 = !{i32 42, !"foobar"}
 
 declare i8 @llvm.something(metadata %a)
 define void @foo() {
diff --git a/test/Linker/linkmdnode2.ll b/test/Linker/linkmdnode2.ll
index a7d991a..5b2b58d 100644
--- a/test/Linker/linkmdnode2.ll
+++ b/test/Linker/linkmdnode2.ll
@@ -2,7 +2,7 @@
 ;
 ; RUN: true
 
-!22 = metadata !{i32 42, metadata !"foobar"}
+!22 = !{i32 42, !"foobar"}
 
 declare i8 @llvm.something(metadata %a)
 define void @foo1() {
@@ -18,5 +18,5 @@ define void @test() {
   ret void, !abc !0
 }
 
-!0 = metadata !{metadata !0, i32 42 }
+!0 = !{!0, i32 42 }
 
diff --git a/test/Linker/linknamedmdnode.ll b/test/Linker/linknamedmdnode.ll
index 73e7554..60f95a6 100644
--- a/test/Linker/linknamedmdnode.ll
+++ b/test/Linker/linknamedmdnode.ll
@@ -3,5 +3,5 @@
 ; RUN: llvm-link %t.bc %t2.bc -S | FileCheck %s
 ; CHECK: !llvm.stuff = !{!0, !1}
 
-!0 = metadata !{i32 42}
+!0 = !{i32 42}
 !llvm.stuff = !{!0}
diff --git a/test/Linker/linknamedmdnode2.ll b/test/Linker/linknamedmdnode2.ll
index d16f62a..ff4330d 100644
--- a/test/Linker/linknamedmdnode2.ll
+++ b/test/Linker/linknamedmdnode2.ll
@@ -2,5 +2,5 @@
 ;
 ; RUN: true
 
-!0 = metadata !{i32 41}
+!0 = !{i32 41}
 !llvm.stuff = !{!0}
diff --git a/test/Linker/lto-attributes.ll b/test/Linker/lto-attributes.ll
index 0dc78ad..e55029a 100644
--- a/test/Linker/lto-attributes.ll
+++ b/test/Linker/lto-attributes.ll
@@ -1,7 +1,10 @@
 ; RUN: llvm-link -S %s -o - | FileCheck %s
 
-; CHECK: @foo = private externally_initialized global i8* null
+; CHECK-DAG: @foo = private externally_initialized global i8* null
 @foo = private externally_initialized global i8* null
-; CHECK: @array = appending global [7 x i8] c"abcdefg", align 1
+
+@useFoo = global i8** @foo
+
+; CHECK-DAG: @array = appending global [7 x i8] c"abcdefg", align 1
 @array = appending global [7 x i8] c"abcdefg", align 1
 
diff --git a/test/Linker/mdlocation.ll b/test/Linker/mdlocation.ll
new file mode 100644
index 0000000..5ee366c
--- /dev/null
+++ b/test/Linker/mdlocation.ll
@@ -0,0 +1,34 @@
+; RUN: llvm-link %s %S/Inputs/mdlocation.ll -o - -S | FileCheck %s
+
+; Test that MDLocations are remapped properly.
+
+; CHECK: !named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !0, !1, !2, !3, !10, !11, !12, !13, !14, !15}
+!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9}
+
+; CHECK:      !0 = !{}
+; CHECK-NEXT: !1 = !MDLocation(line: 3, column: 7, scope: !0)
+; CHECK-NEXT: !2 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !1)
+; CHECK-NEXT: !3 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !2)
+; CHECK-NEXT: !4 = distinct !{}
+; CHECK-NEXT: !5 = !MDLocation(line: 3, column: 7, scope: !4)
+; CHECK-NEXT: !6 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !5)
+; CHECK-NEXT: !7 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !6)
+; CHECK-NEXT: !8 = distinct !MDLocation(line: 3, column: 7, scope: !0)
+; CHECK-NEXT: !9 = distinct !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !8)
+; CHECK-NEXT: !10 = distinct !{}
+; CHECK-NEXT: !11 = !MDLocation(line: 3, column: 7, scope: !10)
+; CHECK-NEXT: !12 = !MDLocation(line: 3, column: 7, scope: !10, inlinedAt: !11)
+; CHECK-NEXT: !13 = !MDLocation(line: 3, column: 7, scope: !10, inlinedAt: !12)
+; CHECK-NEXT: !14 = distinct !MDLocation(line: 3, column: 7, scope: !0)
+; CHECK-NEXT: !15 = distinct !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !14)
+!0 = !{} ; Use this as a scope.
+!1 = !MDLocation(line: 3, column: 7, scope: !0)
+!2 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !1)
+!3 = !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !2)
+!4 = distinct !{} ; Test actual remapping.
+!5 = !MDLocation(line: 3, column: 7, scope: !4)
+!6 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !5)
+!7 = !MDLocation(line: 3, column: 7, scope: !4, inlinedAt: !6)
+; Test distinct nodes.
+!8 = distinct !MDLocation(line: 3, column: 7, scope: !0)
+!9 = distinct !MDLocation(line: 3, column: 7, scope: !0, inlinedAt: !8)
diff --git a/test/Linker/metadata-a.ll b/test/Linker/metadata-a.ll
index 5a9d2e4..78715c6 100644
--- a/test/Linker/metadata-a.ll
+++ b/test/Linker/metadata-a.ll
@@ -1,15 +1,15 @@
 ; RUN: llvm-link %s %p/metadata-b.ll -S -o - | FileCheck %s
 
 ; CHECK: define void @foo(i32 %a)
-; CHECK: ret void, !attach !0, !also !{i32 %a}
+; CHECK: ret void, !attach !0
 ; CHECK: define void @goo(i32 %b)
-; CHECK: ret void, !attach !1, !and !{i32 %b}
-; CHECK: !0 = metadata !{i32 524334, void (i32)* @foo}
-; CHECK: !1 = metadata !{i32 524334, void (i32)* @goo}
+; CHECK: ret void, !attach !1
+; CHECK: !0 = !{i32 524334, void (i32)* @foo}
+; CHECK: !1 = !{i32 524334, void (i32)* @goo}
 
 define void @foo(i32 %a) nounwind {
 entry:
-  ret void, !attach !0, !also !{ i32 %a }
+  ret void, !attach !0
 }
 
-!0 = metadata !{i32 524334, void (i32)* @foo}
+!0 = !{i32 524334, void (i32)* @foo}
diff --git a/test/Linker/metadata-b.ll b/test/Linker/metadata-b.ll
index ef0270a..fd2fd28 100644
--- a/test/Linker/metadata-b.ll
+++ b/test/Linker/metadata-b.ll
@@ -3,7 +3,7 @@
 
 define void @goo(i32 %b) nounwind {
 entry:
-  ret void, !attach !0, !and !{ i32 %b }
+  ret void, !attach !0
 }
 
-!0 = metadata !{i32 524334, void (i32)* @goo}
+!0 = !{i32 524334, void (i32)* @goo}
diff --git a/test/Linker/module-flags-1-a.ll b/test/Linker/module-flags-1-a.ll
index 32f189c..fb3fcc1 100644
--- a/test/Linker/module-flags-1-a.ll
+++ b/test/Linker/module-flags-1-a.ll
@@ -2,15 +2,15 @@
 
 ; Test basic functionality of module flags.
 
-; CHECK: !0 = metadata !{i32 1, metadata !"foo", i32 37}
-; CHECK: !1 = metadata !{i32 2, metadata !"bar", i32 42}
-; CHECK: !2 = metadata !{i32 1, metadata !"mux", metadata !3}
-; CHECK: !3 = metadata !{metadata !"hello world", i32 927}
-; CHECK: !4 = metadata !{i32 1, metadata !"qux", i32 42}
+; CHECK: !0 = !{i32 1, !"foo", i32 37}
+; CHECK: !1 = !{i32 2, !"bar", i32 42}
+; CHECK: !2 = !{i32 1, !"mux", !3}
+; CHECK: !3 = !{!"hello world", i32 927}
+; CHECK: !4 = !{i32 1, !"qux", i32 42}
 ; CHECK: !llvm.module.flags = !{!0, !1, !2, !4}
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
-!1 = metadata !{ i32 2, metadata !"bar", i32 42 }
-!2 = metadata !{ i32 1, metadata !"mux", metadata !{ metadata !"hello world", i32 927 } }
+!0 = !{ i32 1, !"foo", i32 37 }
+!1 = !{ i32 2, !"bar", i32 42 }
+!2 = !{ i32 1, !"mux", !{ !"hello world", i32 927 } }
 
 !llvm.module.flags = !{ !0, !1, !2 }
diff --git a/test/Linker/module-flags-1-b.ll b/test/Linker/module-flags-1-b.ll
index bf3f5e5..b3d1412 100644
--- a/test/Linker/module-flags-1-b.ll
+++ b/test/Linker/module-flags-1-b.ll
@@ -1,8 +1,8 @@
 ; This file is used with module-flags-1-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
-!1 = metadata !{ i32 1, metadata !"qux", i32 42 }
-!2 = metadata !{ i32 1, metadata !"mux", metadata !{ metadata !"hello world", i32 927 } }
+!0 = !{ i32 1, !"foo", i32 37 }
+!1 = !{ i32 1, !"qux", i32 42 }
+!2 = !{ i32 1, !"mux", !{ !"hello world", i32 927 } }
 
 !llvm.module.flags = !{ !0, !1, !2 }
diff --git a/test/Linker/module-flags-2-a.ll b/test/Linker/module-flags-2-a.ll
index 3ae0288..5f03461 100644
--- a/test/Linker/module-flags-2-a.ll
+++ b/test/Linker/module-flags-2-a.ll
@@ -2,9 +2,9 @@
 
 ; Test the 'override' behavior.
 
-; CHECK: !0 = metadata !{i32 4, metadata !"foo", i32 37}
+; CHECK: !0 = !{i32 4, !"foo", i32 37}
 ; CHECK: !llvm.module.flags = !{!0}
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 927 }
+!0 = !{ i32 1, !"foo", i32 927 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-2-b.ll b/test/Linker/module-flags-2-b.ll
index ab55e4b..93d7ac1 100644
--- a/test/Linker/module-flags-2-b.ll
+++ b/test/Linker/module-flags-2-b.ll
@@ -1,6 +1,6 @@
 ; This file is used with module-flags-2-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 4, metadata !"foo", i32 37 } ; Override the "foo" value.
+!0 = !{ i32 4, !"foo", i32 37 } ; Override the "foo" value.
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-3-a.ll b/test/Linker/module-flags-3-a.ll
index e7a720e..26a9391 100644
--- a/test/Linker/module-flags-3-a.ll
+++ b/test/Linker/module-flags-3-a.ll
@@ -2,13 +2,13 @@
 
 ; Test 'require' behavior.
 
-; CHECK: !0 = metadata !{i32 1, metadata !"foo", i32 37}
-; CHECK: !1 = metadata !{i32 1, metadata !"bar", i32 42}
-; CHECK: !2 = metadata !{i32 3, metadata !"foo", metadata !3}
-; CHECK: !3 = metadata !{metadata !"bar", i32 42}
+; CHECK: !0 = !{i32 1, !"foo", i32 37}
+; CHECK: !1 = !{i32 1, !"bar", i32 42}
+; CHECK: !2 = !{i32 3, !"foo", !3}
+; CHECK: !3 = !{!"bar", i32 42}
 ; CHECK: !llvm.module.flags = !{!0, !1, !2}
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
-!1 = metadata !{ i32 1, metadata !"bar", i32 42 }
+!0 = !{ i32 1, !"foo", i32 37 }
+!1 = !{ i32 1, !"bar", i32 42 }
 
 !llvm.module.flags = !{ !0, !1 }
diff --git a/test/Linker/module-flags-3-b.ll b/test/Linker/module-flags-3-b.ll
index 76be802..2e6e529 100644
--- a/test/Linker/module-flags-3-b.ll
+++ b/test/Linker/module-flags-3-b.ll
@@ -1,8 +1,6 @@
 ; This file is used with module-flags-3-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 3, metadata !"foo",
-  metadata !{ metadata !"bar", i32 42 }
-}
+!0 = !{i32 3, !"foo", !{!"bar", i32 42}}
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-4-a.ll b/test/Linker/module-flags-4-a.ll
index a656c8b..14d850d 100644
--- a/test/Linker/module-flags-4-a.ll
+++ b/test/Linker/module-flags-4-a.ll
@@ -4,7 +4,7 @@
 
 ; CHECK: linking module flags 'bar': does not have the required value
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
-!1 = metadata !{ i32 1, metadata !"bar", i32 927 }
+!0 = !{ i32 1, !"foo", i32 37 }
+!1 = !{ i32 1, !"bar", i32 927 }
 
 !llvm.module.flags = !{ !0, !1 }
diff --git a/test/Linker/module-flags-4-b.ll b/test/Linker/module-flags-4-b.ll
index 3a460bb..25aaf19 100644
--- a/test/Linker/module-flags-4-b.ll
+++ b/test/Linker/module-flags-4-b.ll
@@ -1,8 +1,6 @@
 ; This file is used with module-flags-4-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 3, metadata !"foo",
-  metadata !{ metadata !"bar", i32 42 }
-}
+!0 = !{i32 3, !"foo", !{!"bar", i32 42}}
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-5-a.ll b/test/Linker/module-flags-5-a.ll
index 8d625cd..00fb4d1 100644
--- a/test/Linker/module-flags-5-a.ll
+++ b/test/Linker/module-flags-5-a.ll
@@ -4,6 +4,6 @@
 
 ; CHECK: linking module flags 'foo': IDs have conflicting override values
 
-!0 = metadata !{ i32 4, metadata !"foo", i32 927 }
+!0 = !{ i32 4, !"foo", i32 927 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-5-b.ll b/test/Linker/module-flags-5-b.ll
index 1e99b20..7182317 100644
--- a/test/Linker/module-flags-5-b.ll
+++ b/test/Linker/module-flags-5-b.ll
@@ -1,6 +1,6 @@
 ; This file is used with module-flags-5-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 4, metadata !"foo", i32 37 } ; Override the "foo" value.
+!0 = !{ i32 4, !"foo", i32 37 } ; Override the "foo" value.
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-6-a.ll b/test/Linker/module-flags-6-a.ll
index 5329c43..e15fd34 100644
--- a/test/Linker/module-flags-6-a.ll
+++ b/test/Linker/module-flags-6-a.ll
@@ -4,6 +4,6 @@
 
 ; CHECK: linking module flags 'foo': IDs have conflicting values
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
+!0 = !{ i32 1, !"foo", i32 37 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-6-b.ll b/test/Linker/module-flags-6-b.ll
index 2bc5a96..e277700 100644
--- a/test/Linker/module-flags-6-b.ll
+++ b/test/Linker/module-flags-6-b.ll
@@ -1,6 +1,6 @@
 ; This file is used with module-flags-6-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 38 }
+!0 = !{ i32 1, !"foo", i32 38 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-7-a.ll b/test/Linker/module-flags-7-a.ll
index 976c8fe..46c9d26 100644
--- a/test/Linker/module-flags-7-a.ll
+++ b/test/Linker/module-flags-7-a.ll
@@ -4,6 +4,6 @@
 
 ; CHECK: linking module flags 'foo': IDs have conflicting behaviors
 
-!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
+!0 = !{ i32 1, !"foo", i32 37 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-7-b.ll b/test/Linker/module-flags-7-b.ll
index 2bc7250..47d44e9 100644
--- a/test/Linker/module-flags-7-b.ll
+++ b/test/Linker/module-flags-7-b.ll
@@ -1,6 +1,6 @@
 ; This file is used with module-flags-7-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 2, metadata !"foo", i32 37 }
+!0 = !{ i32 2, !"foo", i32 37 }
 
 !llvm.module.flags = !{ !0 }
diff --git a/test/Linker/module-flags-8-a.ll b/test/Linker/module-flags-8-a.ll
index 146cae7..b65a50f 100644
--- a/test/Linker/module-flags-8-a.ll
+++ b/test/Linker/module-flags-8-a.ll
@@ -2,13 +2,13 @@
 
 ; Test append-type module flags.
 
-; CHECK: !0 = metadata !{i32 5, metadata !"flag-0", metadata !1}
-; CHECK: !1 = metadata !{i32 0, i32 0, i32 1}
-; CHECK: !2 = metadata !{i32 6, metadata !"flag-1", metadata !3}
-; CHECK: !3 = metadata !{i32 0, i32 1, i32 2}
+; CHECK: !0 = !{i32 5, !"flag-0", !1}
+; CHECK: !1 = !{i32 0, i32 0, i32 1}
+; CHECK: !2 = !{i32 6, !"flag-1", !3}
+; CHECK: !3 = !{i32 0, i32 1, i32 2}
 ; CHECK: !llvm.module.flags = !{!0, !2}
 
-!0 = metadata !{ i32 5, metadata !"flag-0", metadata !{ i32 0 } }
-!1 = metadata !{ i32 6, metadata !"flag-1", metadata !{ i32 0, i32 1 } }
+!0 = !{ i32 5, !"flag-0", !{ i32 0 } }
+!1 = !{ i32 6, !"flag-1", !{ i32 0, i32 1 } }
 
 !llvm.module.flags = !{ !0, !1 }
diff --git a/test/Linker/module-flags-8-b.ll b/test/Linker/module-flags-8-b.ll
index 08f9bc4..afd737a 100644
--- a/test/Linker/module-flags-8-b.ll
+++ b/test/Linker/module-flags-8-b.ll
@@ -1,7 +1,7 @@
 ; This file is used with module-flags-6-a.ll
 ; RUN: true
 
-!0 = metadata !{ i32 5, metadata !"flag-0", metadata !{ i32 0, i32 1 } }
-!1 = metadata !{ i32 6, metadata !"flag-1", metadata !{ i32 1, i32 2 } }
+!0 = !{ i32 5, !"flag-0", !{ i32 0, i32 1 } }
+!1 = !{ i32 6, !"flag-1", !{ i32 1, i32 2 } }
 
 !llvm.module.flags = !{ !0, !1 }
diff --git a/test/Linker/module-flags-dont-change-others.ll b/test/Linker/module-flags-dont-change-others.ll
new file mode 100644
index 0000000..4cc9f39
--- /dev/null
+++ b/test/Linker/module-flags-dont-change-others.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-link %s %S/Inputs/module-flags-dont-change-others.ll -S -o - | FileCheck %s
+
+; Test that module-flag linking doesn't change other metadata.  In particular,
+; !named should still point at the unmodified tuples (!3, !4, and !5) that
+; happen to also serve as module flags.
+
+; CHECK: !named = !{!0, !1, !2, !3, !4, !5}
+; CHECK: !llvm.module.flags = !{!6, !7, !8}
+!named = !{!0, !1, !2, !3, !4, !5}
+!llvm.module.flags = !{!3, !4, !5}
+
+; CHECK: !0 = !{}
+; CHECK: !1 = !{!0}
+; CHECK: !2 = !{!0, !1}
+; CHECK: !3 = !{i32 1, !"foo", i32 927}
+; CHECK: !4 = !{i32 5, !"bar", !0}
+; CHECK: !5 = !{i32 6, !"baz", !1}
+; CHECK: !6 = !{i32 4, !"foo", i32 37}
+; CHECK: !7 = !{i32 5, !"bar", !1}
+; CHECK: !8 = !{i32 6, !"baz", !2}
+!0 = !{}
+!1 = !{!0}
+!2 = !{!0, !1}
+!3 = !{i32 1, !"foo", i32 927}
+!4 = !{i32 5, !"bar", !0}
+!5 = !{i32 6, !"baz", !1}
diff --git a/test/Linker/module-flags-pic-1-a.ll b/test/Linker/module-flags-pic-1-a.ll
index bc4da95..ea93335 100644
--- a/test/Linker/module-flags-pic-1-a.ll
+++ b/test/Linker/module-flags-pic-1-a.ll
@@ -2,8 +2,8 @@
 
 ; test linking modules with specified and default PIC levels
 
-!0 = metadata !{ i32 1, metadata !"PIC Level", i32 1 }
+!0 = !{ i32 1, !"PIC Level", i32 1 }
 
 !llvm.module.flags = !{!0}
 ; CHECK: !llvm.module.flags = !{!0}
-; CHECK: !0 = metadata !{i32 1, metadata !"PIC Level", i32 1}
+; CHECK: !0 = !{i32 1, !"PIC Level", i32 1}
diff --git a/test/Linker/module-flags-pic-2-a.ll b/test/Linker/module-flags-pic-2-a.ll
index 3ff9c8f..e09af6b 100644
--- a/test/Linker/module-flags-pic-2-a.ll
+++ b/test/Linker/module-flags-pic-2-a.ll
@@ -3,7 +3,7 @@
 
 ; test linking modules with two different PIC levels
 
-!0 = metadata !{ i32 1, metadata !"PIC Level", i32 1 }
+!0 = !{ i32 1, !"PIC Level", i32 1 }
 
 !llvm.module.flags = !{!0}
 
diff --git a/test/Linker/opaque.ll b/test/Linker/opaque.ll
new file mode 100644
index 0000000..1ba878c
--- /dev/null
+++ b/test/Linker/opaque.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-link %p/opaque.ll %p/Inputs/opaque.ll -S -o - | FileCheck %s
+
+; CHECK-DAG: %A =   type {}
+; CHECK-DAG: %B =   type { %C, %C, %B* }
+; CHECK-DAG: %B.1 = type { %D, %E, %B.1* }
+; CHECK-DAG: %C =   type { %A }
+; CHECK-DAG: %D =   type { %E }
+; CHECK-DAG: %E =   type opaque
+
+; CHECK-DAG: @g1 = external global %B
+; CHECK-DAG: @g2 = external global %A
+; CHECK-DAG: @g3 = external global %B.1
+
+; CHECK-DAG: getelementptr %A* null, i32 0
+
+%A = type opaque
+%B = type { %C, %C, %B* }
+
+%C = type { %A }
+
+@g1 = external global %B
diff --git a/test/Linker/pr21374.ll b/test/Linker/pr21374.ll
new file mode 100644
index 0000000..d777971
--- /dev/null
+++ b/test/Linker/pr21374.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-link -S -o - %p/pr21374.ll %p/Inputs/pr21374.ll | FileCheck %s
+; RUN: llvm-link -S -o - %p/Inputs/pr21374.ll %p/pr21374.ll | FileCheck %s
+
+; RUN: llvm-as -o %t1.bc %p/pr21374.ll
+; RUN: llvm-as -o %t2.bc %p/Inputs/pr21374.ll
+
+; RUN: llvm-link -S -o - %t1.bc %t2.bc | FileCheck %s
+; RUN: llvm-link -S -o - %t2.bc %t1.bc | FileCheck %s
+
+; Test that we get the same result with or without lazy loading.
+
+; CHECK: %foo = type { i8* }
+; CHECK-DAG: bitcast i32* null to %foo*
+; CHECK-DAG: define void @g(%foo* %x)
+
+%foo = type { i8* }
+define void @f() {
+  bitcast i32* null to %foo*
+  ret void
+}
diff --git a/test/Linker/pr21494.ll b/test/Linker/pr21494.ll
new file mode 100644
index 0000000..8a17233
--- /dev/null
+++ b/test/Linker/pr21494.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-link %s -S -o - | FileCheck %s
+
+@g1 = private global i8 0
+; CHECK-NOT: @g1
+
+@g2 = linkonce_odr global i8 0
+; CHECK-NOT: @g2
+
+@a1 = private alias i8* @g1
+; CHECK-NOT: @a1
+
+@a2 = linkonce_odr alias i8* @g2
+; CHECK-NOT: @a2
+
+define private void @f1() {
+  ret void
+}
+; CHECK-NOT: @f1
+
+define linkonce_odr void @f2() {
+  ret void
+}
+; CHECK-NOT: @f2
diff --git a/test/Linker/prefixdata.ll b/test/Linker/prefixdata.ll
deleted file mode 100644
index 1f11dc7..0000000
--- a/test/Linker/prefixdata.ll
+++ /dev/null
@@ -1,9 +0,0 @@
-; RUN: echo > %t.ll
-; RUN: llvm-link %t.ll %s -S -o - | FileCheck %s
-
-@i = linkonce_odr global i32 1
-
-; CHECK: define void @f() prefix i32* @i
-define void @f() prefix i32* @i {
-  ret void
-}
diff --git a/test/Linker/prologuedata.ll b/test/Linker/prologuedata.ll
new file mode 100644
index 0000000..70204fd
--- /dev/null
+++ b/test/Linker/prologuedata.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-link %s -S -o - | FileCheck %s
+
+@g1 = global void()* @f2
+; CHECK: @g1 = global void ()* @f2
+
+@p1 = global i8 42
+; CHECK: @p1 = global i8 42
+
+@p2 = internal global i8 43
+; CHECK: @p2 = internal global i8 43
+
+define void @f1() prologue i8* @p1 {
+  ret void
+}
+; CHECK: define void @f1() prologue i8* @p1 {
+
+define internal void @f2() prologue i8* @p2 {
+  ret void
+}
+
+; CHECK: define internal void @f2() prologue i8* @p2 {
diff --git a/test/Linker/replaced-function-matches-first-subprogram.ll b/test/Linker/replaced-function-matches-first-subprogram.ll
new file mode 100644
index 0000000..c0ec5f3
--- /dev/null
+++ b/test/Linker/replaced-function-matches-first-subprogram.ll
@@ -0,0 +1,75 @@
+; RUN: llvm-link %s %S/Inputs/replaced-function-matches-first-subprogram.ll -S | FileCheck %s
+
+; Generated from C++ source:
+;
+; // repro/t.h
+; template <class T> struct Class {
+;   int foo() { return 0; }
+; };
+; // repro/d1/t1.cpp
+; #include "t.h"
+; int foo() { return Class<int>().foo(); }
+; // repro/d2/t2.cpp
+; #include "t.h"
+; template struct Class<int>;
+
+%struct.Class = type { i8 }
+
+define i32 @_Z3foov() {
+entry:
+  %tmp = alloca %struct.Class, align 1
+  %call = call i32 @_ZN5ClassIiE3fooEv(%struct.Class* %tmp), !dbg !14
+  ret i32 %call, !dbg !14
+}
+
+; CHECK: define weak_odr i32 @_ZN5ClassIiE3fooEv(%struct.Class* %this){{.*}}{
+; CHECK-NOT: }
+; CHECK: !dbg ![[LOC:[0-9]+]]
+define linkonce_odr i32 @_ZN5ClassIiE3fooEv(%struct.Class* %this) align 2 {
+entry:
+  %this.addr = alloca %struct.Class*, align 8
+  store %struct.Class* %this, %struct.Class** %this.addr, align 8
+  %this1 = load %struct.Class** %this.addr
+  ret i32 0, !dbg !15
+}
+
+; CHECK: !llvm.dbg.cu = !{![[CU1:[0-9]+]], ![[CU2:[0-9]+]]}
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!10, !11, !12}
+!llvm.ident = !{!13}
+
+; Extract out the list of subprograms from each compile unit.
+; CHECK-DAG: ![[CU1]] = !{!"0x11{{[^"]+}}", {{[^,]+}}, {{[^,]+}}, {{[^,]+}}, ![[SPs1:[0-9]+]],
+; CHECK-DAG: ![[CU2]] = !{!"0x11{{[^"]+}}", {{[^,]+}}, {{[^,]+}}, {{[^,]+}}, ![[SPs2:[0-9]+]],
+!0 = !{!"0x11\004\00clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)\000\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/t1.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"t1.cpp", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1"}
+!2 = !{}
+
+; Extract out each compile unit's single subprogram.  The replaced subprogram
+; should be dropped by the first compile unit.
+; CHECK-DAG: ![[SPs1]] = !{![[SP1:[0-9]+]]}
+; CHECK-DAG: ![[SPs2]] = !{![[SP2:[0-9]+]]}
+!3 = !{!4, !7}
+!4 = !{!"0x2e\00foo\00foo\00\002\000\001\000\000\00256\000\002", !1, !5, !6, null, i32 ()* @_Z3foov, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
+!5 = !{!"0x29", !1}    ; [ DW_TAG_file_type ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/t1.cpp]
+!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+
+; Extract out the file from the replaced subprogram.  Confirm that each
+; subprogram is pointing at the correct function.
+; CHECK-DAG: ![[SP1]] = !{!"0x2e{{[^"]+}}", {{.*}}, i32 ()* @_Z3foov,
+; CHECK-DAG: ![[SP2]] = !{!"0x2e{{[^"]+}}", ![[FILE:[0-9]+]], {{.*}}, i32 (%struct.Class*)* @_ZN5ClassIiE3fooEv,
+!7 = !{!"0x2e\00foo\00foo\00\002\000\001\000\000\00256\000\002", !8, !9, !6, null, i32 (%struct.Class*)* @_ZN5ClassIiE3fooEv, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
+
+; The new subprogram should be pointing at the new directory.
+; CHECK-DAG: ![[FILE]] = !{!"../t.h", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2"}
+!8 = !{!"../t.h", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1"}
+!9 = !{!"0x29", !8}    ; [ DW_TAG_file_type ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/../t.h]
+!10 = !{i32 2, !"Dwarf Version", i32 2}
+!11 = !{i32 2, !"Debug Info Version", i32 2}
+!12 = !{i32 1, !"PIC Level", i32 2}
+!13 = !{!"clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)"}
+!14 = !MDLocation(line: 2, column: 20, scope: !4)
+
+; The same subprogram should be pointed to by inside the !dbg reference.
+; CHECK: ![[LOC]] = !MDLocation(line: 2, column: 15, scope: ![[SP2]])
+!15 = !MDLocation(line: 2, column: 15, scope: !7)
diff --git a/test/Linker/targettriple.ll b/test/Linker/targettriple.ll
index c544a14..8778706 100644
--- a/test/Linker/targettriple.ll
+++ b/test/Linker/targettriple.ll
@@ -1,17 +1,23 @@
 ; REQUIRES: shell
 ; RUN: llvm-link %s %S/Inputs/targettriple-a.ll -S -o - 2>%t.a.err | FileCheck %s
-; RUN: (echo foo ;cat %t.a.err) | FileCheck --check-prefix=WARN-A %s
+; RUN: cat %t.a.err | FileCheck --check-prefix=WARN-A %s --allow-empty
 
 ; RUN: llvm-link %s %S/Inputs/targettriple-b.ll -S -o - 2>%t.b.err | FileCheck %s
 ; RUN: cat %t.b.err | FileCheck --check-prefix=WARN-B %s
+; RUN: llvm-link %s %S/Inputs/targettriple-c.ll -S -o - 2>%t.c.err | FileCheck %s
+; RUN: cat %t.c.err | FileCheck --check-prefix=WARN-C %s --allow-empty
 
 ; RUN: llvm-link -suppress-warnings %s %S/Inputs/targettriple-b.ll -S -o - 2>%t.no-warn.err | FileCheck %s
-; RUN: (echo foo ;cat %t.no-warn.err) | FileCheck --check-prefix=WARN-A %s
+; RUN: cat %t.no-warn.err | FileCheck --check-prefix=WARN-A %s --allow-empty
 
-target triple = "e"
+target triple = "x86_64-unknown-linux-gnu"
 
-; CHECK: target triple = "e"
+; CHECK: target triple = "x86_64-unknown-linux-gnu"
 
 ; WARN-A-NOT: WARNING
 
+; i386 and x86_64 map to different ArchType enums.
 ; WARN-B: WARNING: Linking two modules of different target triples:
+
+; x86_64h and x86_64 map to the same ArchType enum.
+; WARN-C-NOT: WARNING
diff --git a/test/Linker/testlink1.ll b/test/Linker/testlink.ll
index 6ba6fd5..aad4b9b 100644
--- a/test/Linker/testlink1.ll
+++ b/test/Linker/testlink.ll
@@ -1,6 +1,4 @@
-; RUN: llvm-as < %s > %t.bc
-; RUN: llvm-as < %p/testlink2.ll > %t2.bc
-; RUN: llvm-link %t.bc %t2.bc -S | FileCheck %s
+; RUN: llvm-link %s %S/Inputs/testlink.ll -S | FileCheck %s
 
 ; CHECK: %Ty2 = type { %Ty1* }
 ; CHECK: %Ty1 = type { %Ty2* }
@@ -26,46 +24,51 @@
 
 
 ; This should stay the same
-; CHECK: @MyIntList = global %intlist { %intlist* null, i32 17 }
+; CHECK-DAG: @MyIntList = global %intlist { %intlist* null, i32 17 }
 @MyIntList = global %intlist { %intlist* null, i32 17 }
 
 
 ; Nothing to link here.
 
-; CHECK: @0 = external global i32
+; CHECK-DAG: @0 = external global i32
 @0 = external global i32
-; CHECK: @Inte = global i32 1
+; CHECK-DAG: @Inte = global i32 1
 @Inte = global i32 1
 
 ; Intern1 is intern in both files, rename testlink2's.
-; CHECK: @Intern1 = internal constant i32 42
+; CHECK-DAG: @Intern1 = internal constant i32 42
 @Intern1 = internal constant i32 42
 
+@UseIntern1 = global i32* @Intern1
+
 ; This should get renamed since there is a definition that is non-internal in
 ; the other module.
-; CHECK: @Intern2{{[0-9]+}} = internal constant i32 792
+; CHECK-DAG: @Intern2{{[0-9]+}} = internal constant i32 792
 @Intern2 = internal constant i32 792
 
+@UseIntern2 = global i32* @Intern2
 
-; CHECK: @MyVarPtr = linkonce global { i32* } { i32* @MyVar }
+; CHECK-DAG: @MyVarPtr = linkonce global { i32* } { i32* @MyVar }
 @MyVarPtr = linkonce global { i32* } { i32* @MyVar }
 
-; CHECK: @MyVar = global i32 4
+@UseMyVarPtr = global { i32* }* @MyVarPtr
+
+; CHECK-DAG: @MyVar = global i32 4
 @MyVar = external global i32
 
 ; Take value from other module.
-; CHECK: AConst = constant i32 1234
+; CHECK-DAG: AConst = constant i32 1234
 @AConst = linkonce constant i32 123
 
 ; Renamed version of Intern1.
-; CHECK: @Intern1{{[0-9]+}} = internal constant i32 52
+; CHECK-DAG: @Intern1{{[0-9]+}} = internal constant i32 52
 
 
 ; Globals linked from testlink2.
-; CHECK: @Intern2 = constant i32 12345
+; CHECK-DAG: @Intern2 = constant i32 12345
 
-; CHECK: @MyIntListPtr = constant 
-; CHECK: @1 = constant i32 412
+; CHECK-DAG: @MyIntListPtr = constant
+; CHECK-DAG: @1 = constant i32 412
 
 
 declare i32 @foo(i32)
diff --git a/test/Linker/type-unique-alias.ll b/test/Linker/type-unique-alias.ll
new file mode 100644
index 0000000..e43450f
--- /dev/null
+++ b/test/Linker/type-unique-alias.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-link -S %s %p/Inputs/type-unique-alias.ll | FileCheck %s
+
+%t = type { i8 }
+
+@g = global %t zeroinitializer
+@a = weak alias %t* @g
+
+; CHECK: @g = global %t zeroinitializer
+; CHECK: @g2 = global %t zeroinitializer
+; CHECK: @a = weak alias %t* @g
diff --git a/test/Linker/type-unique-dst-types.ll b/test/Linker/type-unique-dst-types.ll
new file mode 100644
index 0000000..30aecbb
--- /dev/null
+++ b/test/Linker/type-unique-dst-types.ll
@@ -0,0 +1,19 @@
+; RUN: llvm-link %p/type-unique-dst-types.ll \
+; RUN:           %p/Inputs/type-unique-dst-types2.ll \
+; RUN:           %p/Inputs/type-unique-dst-types3.ll -S -o - | FileCheck %s
+
+; This tests the importance of keeping track of which types are part of the
+; destination module.
+; When the second input is merged in, the context gets an unused A.11. When
+; the third module is then merged, we should pretend it doesn't exist.
+
+; CHECK: %A = type { %B }
+; CHECK-NEXT: %B = type { i8 }
+
+; CHECK: @g3 = external global %A
+; CHECK: @g1 = external global %A
+; CHECK: @g2 = external global %A
+
+%A = type { %B }
+%B = type { i8 }
+@g3 = external global %A
diff --git a/test/Linker/type-unique-name.ll b/test/Linker/type-unique-name.ll
new file mode 100644
index 0000000..191b6dd
--- /dev/null
+++ b/test/Linker/type-unique-name.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-link -S %s %p/Inputs/type-unique-name.ll | FileCheck %s
+
+; Test that we keep the type name
+; CHECK: %abc = type { i8 }
+
+%abc = type opaque
+
+declare %abc* @f()
+
+define %abc* @g() {
+  %x = call %abc* @f()
+  ret %abc* %x
+}
diff --git a/test/Linker/type-unique-odr-a.ll b/test/Linker/type-unique-odr-a.ll
index e17cd2b..900b035 100644
--- a/test/Linker/type-unique-odr-a.ll
+++ b/test/Linker/type-unique-odr-a.ll
@@ -59,7 +59,7 @@ entry:
 define internal void @_ZL3barv() #0 {
 entry:
   %a = alloca %class.A, align 4
-  call void @llvm.dbg.declare(metadata !{%class.A* %a}, metadata !24, metadata !{metadata !"0x102"}), !dbg !25
+  call void @llvm.dbg.declare(metadata %class.A* %a, metadata !24, metadata !{!"0x102"}), !dbg !25
   ret void, !dbg !26
 }
 
@@ -73,30 +73,30 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!20, !21}
 !llvm.ident = !{!22}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x2\00A\001\0032\0032\000\000\000", metadata !5, null, null, metadata !6, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
-!5 = metadata !{metadata !"type-unique-odr-a.cpp", metadata !""}
-!6 = metadata !{metadata !7, metadata !9}
-!7 = metadata !{metadata !"0xd\00data\002\0032\0032\000\001", metadata !5, metadata !"_ZTS1A", metadata !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\000\000\006\00258\000\004", metadata !5, metadata !"_ZTS1A", metadata !10, null, null, null, i32 0, metadata !13} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo]
-!10 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!11 = metadata !{null, metadata !12}
-!12 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
-!13 = metadata !{i32 786468}
-!14 = metadata !{metadata !15, metadata !19}
-!15 = metadata !{metadata !"0x2e\00baz\00baz\00_Z3bazv\0011\000\001\000\006\00256\000\0011", metadata !5, metadata !16, metadata !17, null, void ()* @_Z3bazv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [baz]
-!16 = metadata !{metadata !"0x29", metadata !5}         ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp]
-!17 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!18 = metadata !{null}
-!19 = metadata !{metadata !"0x2e\00bar\00bar\00_ZL3barv\007\001\001\000\006\00256\000\007", metadata !5, metadata !16, metadata !17, null, void ()* @_ZL3barv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar]
-!20 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!21 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
-!22 = metadata !{metadata !"clang version 3.5.0 "}
-!23 = metadata !{i32 11, i32 0, metadata !15, null}
-!24 = metadata !{metadata !"0x100\00a\008\000", metadata !19, metadata !16, metadata !"_ZTS1A"} ; [ DW_TAG_auto_variable ] [a] [line 8]
-!25 = metadata !{i32 8, i32 0, metadata !19, null}
-!26 = metadata !{i32 9, i32 0, metadata !19, null}
+!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
+!1 = !{!"<unknown>", !""}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x2\00A\001\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
+!5 = !{!"type-unique-odr-a.cpp", !""}
+!6 = !{!7, !9}
+!7 = !{!"0xd\00data\002\0032\0032\000\001", !5, !"_ZTS1A", !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\000\000\006\00258\000\004", !5, !"_ZTS1A", !10, null, null, null, i32 0, !13} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo]
+!10 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!11 = !{null, !12}
+!12 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
+!13 = !{i32 786468}
+!14 = !{!15, !19}
+!15 = !{!"0x2e\00baz\00baz\00_Z3bazv\0011\000\001\000\006\00256\000\0011", !5, !16, !17, null, void ()* @_Z3bazv, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [baz]
+!16 = !{!"0x29", !5}         ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp]
+!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!18 = !{null}
+!19 = !{!"0x2e\00bar\00bar\00_ZL3barv\007\001\001\000\006\00256\000\007", !5, !16, !17, null, void ()* @_ZL3barv, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar]
+!20 = !{i32 2, !"Dwarf Version", i32 4}
+!21 = !{i32 1, !"Debug Info Version", i32 2}
+!22 = !{!"clang version 3.5.0 "}
+!23 = !MDLocation(line: 11, scope: !15)
+!24 = !{!"0x100\00a\008\000", !19, !16, !"_ZTS1A"} ; [ DW_TAG_auto_variable ] [a] [line 8]
+!25 = !MDLocation(line: 8, scope: !19)
+!26 = !MDLocation(line: 9, scope: !19)
diff --git a/test/Linker/type-unique-odr-b.ll b/test/Linker/type-unique-odr-b.ll
index e5f094e..b262191 100644
--- a/test/Linker/type-unique-odr-b.ll
+++ b/test/Linker/type-unique-odr-b.ll
@@ -26,7 +26,7 @@ define void @_ZN1A6getFooEv(%class.A* %this) #0 align 2 {
 entry:
   %this.addr = alloca %class.A*, align 8
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !24, metadata !{metadata !"0x102"}), !dbg !26
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !24, metadata !{!"0x102"}), !dbg !26
   %this1 = load %class.A** %this.addr
   ret void, !dbg !27
 }
@@ -54,33 +54,33 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!21, !22}
 !llvm.ident = !{!23}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x2\00A\002\0032\0032\000\000\000", metadata !5, null, null, metadata !6, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 32, align 32, offset 0] [def] [from ]
-!5 = metadata !{metadata !"type-unique-odr-b.cpp", metadata !""}
-!6 = metadata !{metadata !7, metadata !9}
-!7 = metadata !{metadata !"0xd\00data\003\0032\0032\000\001", metadata !5, metadata !"_ZTS1A", metadata !8} ; [ DW_TAG_member ] [data] [line 3, size 32, align 32, offset 0] [private] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\000\006\00258\000\005", metadata !5, metadata !"_ZTS1A", metadata !10, null, null, null, i32 0, metadata !13} ; [ DW_TAG_subprogram ] [line 5] [protected] [getFoo]
-!10 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!11 = metadata !{null, metadata !12}
-!12 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
-!13 = metadata !{i32 786468}
-!14 = metadata !{metadata !15, metadata !16, metadata !20}
-!15 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\008\000\001\000\006\00256\000\008", metadata !5, metadata !"_ZTS1A", metadata !10, null, void (%class.A*)* @_ZN1A6getFooEv, null, metadata !9, metadata !2} ; [ DW_TAG_subprogram ] [line 8] [def] [getFoo]
-!16 = metadata !{metadata !"0x2e\00f\00f\00_Z1fv\0011\000\001\000\006\00256\000\0011", metadata !5, metadata !17, metadata !18, null, void ()* @_Z1fv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
-!17 = metadata !{metadata !"0x29", metadata !5}         ; [ DW_TAG_file_type ] [type-unique-odr-b.cpp]
-!18 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !19, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!19 = metadata !{null}
-!20 = metadata !{metadata !"0x2e\00bar\00bar\00_ZL3barv\0010\001\001\000\006\00256\000\0010", metadata !5, metadata !17, metadata !18, null, void ()* @_ZL3barv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 10] [local] [def] [bar]
-!21 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!22 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
-!23 = metadata !{metadata !"clang version 3.5.0 "}
-!24 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !15, null, metadata !25} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!25 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
-!26 = metadata !{i32 0, i32 0, metadata !15, null}
-!27 = metadata !{i32 8, i32 0, metadata !15, null}
-!28 = metadata !{i32 11, i32 0, metadata !16, null}
-!29 = metadata !{i32 10, i32 0, metadata !20, null}
+!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
+!1 = !{!"<unknown>", !""}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x2\00A\002\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 32, align 32, offset 0] [def] [from ]
+!5 = !{!"type-unique-odr-b.cpp", !""}
+!6 = !{!7, !9}
+!7 = !{!"0xd\00data\003\0032\0032\000\001", !5, !"_ZTS1A", !8} ; [ DW_TAG_member ] [data] [line 3, size 32, align 32, offset 0] [private] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\000\006\00258\000\005", !5, !"_ZTS1A", !10, null, null, null, i32 0, !13} ; [ DW_TAG_subprogram ] [line 5] [protected] [getFoo]
+!10 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!11 = !{null, !12}
+!12 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
+!13 = !{i32 786468}
+!14 = !{!15, !16, !20}
+!15 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\008\000\001\000\006\00256\000\008", !5, !"_ZTS1A", !10, null, void (%class.A*)* @_ZN1A6getFooEv, null, !9, !2} ; [ DW_TAG_subprogram ] [line 8] [def] [getFoo]
+!16 = !{!"0x2e\00f\00f\00_Z1fv\0011\000\001\000\006\00256\000\0011", !5, !17, !18, null, void ()* @_Z1fv, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
+!17 = !{!"0x29", !5}         ; [ DW_TAG_file_type ] [type-unique-odr-b.cpp]
+!18 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !19, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!19 = !{null}
+!20 = !{!"0x2e\00bar\00bar\00_ZL3barv\0010\001\001\000\006\00256\000\0010", !5, !17, !18, null, void ()* @_ZL3barv, null, null, !2} ; [ DW_TAG_subprogram ] [line 10] [local] [def] [bar]
+!21 = !{i32 2, !"Dwarf Version", i32 4}
+!22 = !{i32 1, !"Debug Info Version", i32 2}
+!23 = !{!"clang version 3.5.0 "}
+!24 = !{!"0x101\00this\0016777216\001088", !15, null, !25} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!25 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
+!26 = !MDLocation(line: 0, scope: !15)
+!27 = !MDLocation(line: 8, scope: !15)
+!28 = !MDLocation(line: 11, scope: !16)
+!29 = !MDLocation(line: 10, scope: !20)
diff --git a/test/Linker/type-unique-opaque.ll b/test/Linker/type-unique-opaque.ll
new file mode 100644
index 0000000..b4f6966
--- /dev/null
+++ b/test/Linker/type-unique-opaque.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-link -S %s %p/Inputs/type-unique-opaque.ll | FileCheck %s
+
+; Test that a failed attempt at merging %u2 and %t2 (for the other file) will
+; not cause %u and %t to get merged.
+
+; CHECK: %u = type opaque
+; CHECK: define %u* @g() {
+
+%u = type opaque
+%u2 = type { %u*, i8 }
+
+declare %u2* @f()
+
+define %u* @g() {
+  ret %u* null
+}
diff --git a/test/Linker/type-unique-simple-a.ll b/test/Linker/type-unique-simple-a.ll
index c01cd5c..ef29cd9 100644
--- a/test/Linker/type-unique-simple-a.ll
+++ b/test/Linker/type-unique-simple-a.ll
@@ -54,8 +54,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %struct.Base, align 4
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !15, metadata !{metadata !"0x102"}), !dbg !16
-  call void @llvm.dbg.declare(metadata !{%struct.Base* %t}, metadata !17, metadata !{metadata !"0x102"}), !dbg !18
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !15, metadata !{!"0x102"}), !dbg !16
+  call void @llvm.dbg.declare(metadata %struct.Base* %t, metadata !17, metadata !{!"0x102"}), !dbg !18
   ret void, !dbg !19
 }
 
@@ -68,24 +68,24 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!14, !20}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !9, metadata !2, metadata !2} ; [ 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 !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x13\00Base\001\0032\0032\000\000\000", metadata !5, null, null, metadata !6, 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"}
-!6 = metadata !{metadata !7}
-!7 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !5, metadata !"_ZTS4Base", metadata !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !10}
-!10 = metadata !{metadata !"0x2e\00f\00f\00_Z1fi\003\000\001\000\006\00256\000\003", metadata !1, metadata !11, metadata !12, null, void (i32)* @_Z1fi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
-!11 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/simple/foo.cpp]
-!12 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!13 = metadata !{null, metadata !8}
-!14 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!15 = metadata !{metadata !"0x101\00a\0016777219\000", metadata !10, metadata !11, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 3]
-!16 = metadata !{i32 3, i32 0, metadata !10, null}
-!17 = metadata !{metadata !"0x100\00t\004\000", metadata !10, metadata !11, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 4]
-!18 = metadata !{i32 4, i32 0, metadata !10, null}
-!19 = metadata !{i32 5, i32 0, metadata !10, null}
-!20 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)\000\00\000\00\000", !1, !2, !3, !9, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/simple/foo.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"foo.cpp", !"/Users/mren/c_testing/type_unique_air/simple"}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x13\00Base\001\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 32, align 32, offset 0] [def] [from ]
+!5 = !{!"./a.hpp", !"/Users/mren/c_testing/type_unique_air/simple"}
+!6 = !{!7}
+!7 = !{!"0xd\00a\002\0032\0032\000\000", !5, !"_ZTS4Base", !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!10}
+!10 = !{!"0x2e\00f\00f\00_Z1fi\003\000\001\000\006\00256\000\003", !1, !11, !12, null, void (i32)* @_Z1fi, null, null, !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
+!11 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/simple/foo.cpp]
+!12 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!13 = !{null, !8}
+!14 = !{i32 2, !"Dwarf Version", i32 2}
+!15 = !{!"0x101\00a\0016777219\000", !10, !11, !8} ; [ DW_TAG_arg_variable ] [a] [line 3]
+!16 = !MDLocation(line: 3, scope: !10)
+!17 = !{!"0x100\00t\004\000", !10, !11, !4} ; [ DW_TAG_auto_variable ] [t] [line 4]
+!18 = !MDLocation(line: 4, scope: !10)
+!19 = !MDLocation(line: 5, scope: !10)
+!20 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/type-unique-simple-b.ll b/test/Linker/type-unique-simple-b.ll
index fabdb03..fb1a529 100644
--- a/test/Linker/type-unique-simple-b.ll
+++ b/test/Linker/type-unique-simple-b.ll
@@ -10,8 +10,8 @@ entry:
   %a.addr = alloca i32, align 4
   %t = alloca %struct.Base, align 4
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !18, metadata !{metadata !"0x102"}), !dbg !19
-  call void @llvm.dbg.declare(metadata !{%struct.Base* %t}, metadata !20, metadata !{metadata !"0x102"}), !dbg !21
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !18, metadata !{!"0x102"}), !dbg !19
+  call void @llvm.dbg.declare(metadata %struct.Base* %t, metadata !20, metadata !{!"0x102"}), !dbg !21
   ret void, !dbg !22
 }
 
@@ -38,30 +38,30 @@ attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!17, !26}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !9, metadata !2, metadata !2} ; [ 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 !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x13\00Base\001\0032\0032\000\000\000", metadata !5, null, null, metadata !6, 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"}
-!6 = metadata !{metadata !7}
-!7 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !5, metadata !"_ZTS4Base", metadata !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!9 = metadata !{metadata !10, metadata !14}
-!10 = metadata !{metadata !"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", metadata !1, metadata !11, metadata !12, null, void (i32)* @_Z1gi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
-!11 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/simple/bar.cpp]
-!12 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!13 = metadata !{null, metadata !8}
-!14 = metadata !{metadata !"0x2e\00main\00main\00\007\000\001\000\006\00256\000\007", metadata !1, metadata !11, metadata !15, null, i32 ()* @main, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [main]
-!15 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!16 = metadata !{metadata !8}
-!17 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!18 = metadata !{metadata !"0x101\00a\0016777220\000", metadata !10, metadata !11, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
-!19 = metadata !{i32 4, i32 0, metadata !10, null}
-!20 = metadata !{metadata !"0x100\00t\005\000", metadata !10, metadata !11, metadata !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
-!21 = metadata !{i32 5, i32 0, metadata !10, null}
-!22 = metadata !{i32 6, i32 0, metadata !10, null}
-!23 = metadata !{i32 8, i32 0, metadata !14, null}
-!24 = metadata !{i32 9, i32 0, metadata !14, null}
-!25 = metadata !{i32 10, i32 0, metadata !14, null}
-!26 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!0 = !{!"0x11\004\00clang version 3.4 (http://llvm.org/git/clang.git c23b1db6268c8e7ce64026d57d1510c1aac200a0) (http://llvm.org/git/llvm.git 09b98fe3978eddefc2145adc1056cf21580ce945)\000\00\000\00\000", !1, !2, !3, !9, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/mren/c_testing/type_unique_air/simple/bar.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"bar.cpp", !"/Users/mren/c_testing/type_unique_air/simple"}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x13\00Base\001\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS4Base"} ; [ DW_TAG_structure_type ] [Base] [line 1, size 32, align 32, offset 0] [def] [from ]
+!5 = !{!"./a.hpp", !"/Users/mren/c_testing/type_unique_air/simple"}
+!6 = !{!7}
+!7 = !{!"0xd\00a\002\0032\0032\000\000", !5, !"_ZTS4Base", !8} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !{!10, !14}
+!10 = !{!"0x2e\00g\00g\00_Z1gi\004\000\001\000\006\00256\000\004", !1, !11, !12, null, void (i32)* @_Z1gi, null, null, !2} ; [ DW_TAG_subprogram ] [line 4] [def] [g]
+!11 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [/Users/mren/c_testing/type_unique_air/simple/bar.cpp]
+!12 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!13 = !{null, !8}
+!14 = !{!"0x2e\00main\00main\00\007\000\001\000\006\00256\000\007", !1, !11, !15, null, i32 ()* @main, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [main]
+!15 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = !{!8}
+!17 = !{i32 2, !"Dwarf Version", i32 2}
+!18 = !{!"0x101\00a\0016777220\000", !10, !11, !8} ; [ DW_TAG_arg_variable ] [a] [line 4]
+!19 = !MDLocation(line: 4, scope: !10)
+!20 = !{!"0x100\00t\005\000", !10, !11, !4} ; [ DW_TAG_auto_variable ] [t] [line 5]
+!21 = !MDLocation(line: 5, scope: !10)
+!22 = !MDLocation(line: 6, scope: !10)
+!23 = !MDLocation(line: 8, scope: !14)
+!24 = !MDLocation(line: 9, scope: !14)
+!25 = !MDLocation(line: 10, scope: !14)
+!26 = !{i32 1, !"Debug Info Version", i32 2}
diff --git a/test/Linker/type-unique-simple2-a.ll b/test/Linker/type-unique-simple2-a.ll
index 691c5c5..72a776b 100644
--- a/test/Linker/type-unique-simple2-a.ll
+++ b/test/Linker/type-unique-simple2-a.ll
@@ -48,7 +48,7 @@ define linkonce_odr void @_ZN1AC1Ev(%class.A* %this) unnamed_addr #2 align 2 {
 entry:
   %this.addr = alloca %class.A*, align 8
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !39, metadata !{metadata !"0x102"}), !dbg !41
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !39, metadata !{!"0x102"}), !dbg !41
   %this1 = load %class.A** %this.addr
   call void @_ZN1AC2Ev(%class.A* %this1) #1, !dbg !42
   ret void, !dbg !42
@@ -64,7 +64,7 @@ define linkonce_odr void @_ZN1AC2Ev(%class.A* %this) unnamed_addr #2 align 2 {
 entry:
   %this.addr = alloca %class.A*, align 8
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !44, metadata !{metadata !"0x102"}), !dbg !45
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !44, metadata !{!"0x102"}), !dbg !45
   %this1 = load %class.A** %this.addr
   %0 = bitcast %class.A* %this1 to i8***, !dbg !46
   store i8** getelementptr inbounds ([4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !46
@@ -80,50 +80,50 @@ attributes #4 = { nounwind readnone }
 !llvm.module.flags = !{!35, !36}
 !llvm.ident = !{!37}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !26, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x2\00A\002\0064\0064\000\000\000", metadata !5, null, null, metadata !6, 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 !""}
-!6 = metadata !{metadata !7, metadata !14, metadata !19}
-!7 = metadata !{metadata !"0xd\00_vptr$A\000\0064\000\000\0064", metadata !5, metadata !8, metadata !9} ; [ DW_TAG_member ] [_vptr$A] [line 0, size 64, align 0, offset 0] [artificial] [from ]
-!8 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [/./ab.h]
-!9 = metadata !{metadata !"0xf\00\000\0064\000\000\000", null, null, metadata !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
-!10 = metadata !{metadata !"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, metadata !11} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
-!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!12 = metadata !{metadata !13}
-!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!14 = metadata !{metadata !"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\004\000\000\001\006\00259\000\004", metadata !5, metadata !"_ZTS1A", metadata !15, metadata !"_ZTS1A", null, null, i32 0, metadata !18} ; [ DW_TAG_subprogram ] [line 4] [setFoo]
-!15 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!16 = metadata !{null, metadata !17}
-!17 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
-!18 = metadata !{i32 786468}
-!19 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\001\006\00259\000\005", metadata !5, metadata !"_ZTS1A", metadata !20, metadata !"_ZTS1A", null, null, i32 0, metadata !25} ; [ DW_TAG_subprogram ] [line 5] [getFoo]
-!20 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!21 = metadata !{metadata !22, metadata !17}
-!22 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !23} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo_t]
-!23 = metadata !{metadata !"0x16\00foo_t\001\000\000\000\000", metadata !24, null, metadata !13} ; [ DW_TAG_typedef ] [foo_t] [line 1, size 0, align 0, offset 0] [from int]
-!24 = metadata !{metadata !"a.cpp", metadata !""}
-!25 = metadata !{i32 786468}
-!26 = metadata !{metadata !27, metadata !31, metadata !34}
-!27 = metadata !{metadata !"0x2e\00bar\00bar\00_Z3barv\002\000\001\000\006\00256\000\002", metadata !24, metadata !28, metadata !29, null, i32 ()* @_Z3barv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [bar]
-!28 = metadata !{metadata !"0x29", metadata !24}        ; [ DW_TAG_file_type ] [/a.cpp]
-!29 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !30, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!30 = metadata !{metadata !23}
-!31 = metadata !{metadata !"0x2e\00A\00A\00_ZN1AC1Ev\002\000\001\000\006\00320\000\002", metadata !5, metadata !"_ZTS1A", metadata !15, null, void (%class.A*)* @_ZN1AC1Ev, null, metadata !32, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [A]
-!32 = metadata !{metadata !"0x2e\00A\00A\00\000\000\000\000\006\00320\000\000", null, metadata !"_ZTS1A", metadata !15, null, null, null, i32 0, metadata !33} ; [ DW_TAG_subprogram ] [line 0] [A]
-!33 = metadata !{i32 786468}
-!34 = metadata !{metadata !"0x2e\00A\00A\00_ZN1AC2Ev\002\000\001\000\006\00320\000\002", metadata !5, metadata !"_ZTS1A", metadata !15, null, void (%class.A*)* @_ZN1AC2Ev, null, metadata !32, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [A]
-!35 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!36 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
-!37 = metadata !{metadata !"clang version 3.5 "}
-!38 = metadata !{i32 3, i32 0, metadata !27, null}
-!39 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !31, null, metadata !40} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!40 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
-!41 = metadata !{i32 0, i32 0, metadata !31, null}
-!42 = metadata !{i32 2, i32 0, metadata !43, null}
-!43 = metadata !{metadata !"0xb\000", metadata !5, metadata !31} ; [ DW_TAG_lexical_block ] [/./ab.h]
-!44 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !34, null, metadata !40} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!45 = metadata !{i32 0, i32 0, metadata !34, null}
-!46 = metadata !{i32 2, i32 0, metadata !34, null}
+!0 = !{!"0x11\004\00clang version 3.5 \000\00\000\00\000", !1, !2, !3, !26, !2, !2} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
+!1 = !{!"<unknown>", !""}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x2\00A\002\0064\0064\000\000\000", !5, null, null, !6, !"_ZTS1A", null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 64, align 64, offset 0] [def] [from ]
+!5 = !{!"./ab.h", !""}
+!6 = !{!7, !14, !19}
+!7 = !{!"0xd\00_vptr$A\000\0064\000\000\0064", !5, !8, !9} ; [ DW_TAG_member ] [_vptr$A] [line 0, size 64, align 0, offset 0] [artificial] [from ]
+!8 = !{!"0x29", !5}          ; [ DW_TAG_file_type ] [/./ab.h]
+!9 = !{!"0xf\00\000\0064\000\000\000", null, null, !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
+!10 = !{!"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, !11} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
+!11 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!12 = !{!13}
+!13 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!14 = !{!"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\004\000\000\001\006\00259\000\004", !5, !"_ZTS1A", !15, !"_ZTS1A", null, null, i32 0, !18} ; [ DW_TAG_subprogram ] [line 4] [setFoo]
+!15 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = !{null, !17}
+!17 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
+!18 = !{i32 786468}
+!19 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\001\006\00259\000\005", !5, !"_ZTS1A", !20, !"_ZTS1A", null, null, i32 0, !25} ; [ DW_TAG_subprogram ] [line 5] [getFoo]
+!20 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!21 = !{!22, !17}
+!22 = !{!"0x26\00\000\000\000\000\000", null, null, !23} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo_t]
+!23 = !{!"0x16\00foo_t\001\000\000\000\000", !24, null, !13} ; [ DW_TAG_typedef ] [foo_t] [line 1, size 0, align 0, offset 0] [from int]
+!24 = !{!"a.cpp", !""}
+!25 = !{i32 786468}
+!26 = !{!27, !31, !34}
+!27 = !{!"0x2e\00bar\00bar\00_Z3barv\002\000\001\000\006\00256\000\002", !24, !28, !29, null, i32 ()* @_Z3barv, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [bar]
+!28 = !{!"0x29", !24}        ; [ DW_TAG_file_type ] [/a.cpp]
+!29 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !30, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!30 = !{!23}
+!31 = !{!"0x2e\00A\00A\00_ZN1AC1Ev\002\000\001\000\006\00320\000\002", !5, !"_ZTS1A", !15, null, void (%class.A*)* @_ZN1AC1Ev, null, !32, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [A]
+!32 = !{!"0x2e\00A\00A\00\000\000\000\000\006\00320\000\000", null, !"_ZTS1A", !15, null, null, null, i32 0, !33} ; [ DW_TAG_subprogram ] [line 0] [A]
+!33 = !{i32 786468}
+!34 = !{!"0x2e\00A\00A\00_ZN1AC2Ev\002\000\001\000\006\00320\000\002", !5, !"_ZTS1A", !15, null, void (%class.A*)* @_ZN1AC2Ev, null, !32, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [A]
+!35 = !{i32 2, !"Dwarf Version", i32 2}
+!36 = !{i32 1, !"Debug Info Version", i32 2}
+!37 = !{!"clang version 3.5 "}
+!38 = !MDLocation(line: 3, scope: !27)
+!39 = !{!"0x101\00this\0016777216\001088", !31, null, !40} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!40 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
+!41 = !MDLocation(line: 0, scope: !31)
+!42 = !MDLocation(line: 2, scope: !43)
+!43 = !{!"0xb\000", !5, !31} ; [ DW_TAG_lexical_block ] [/./ab.h]
+!44 = !{!"0x101\00this\0016777216\001088", !34, null, !40} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!45 = !MDLocation(line: 0, scope: !34)
+!46 = !MDLocation(line: 2, scope: !34)
diff --git a/test/Linker/type-unique-simple2-b.ll b/test/Linker/type-unique-simple2-b.ll
index f851316..25e67d4 100644
--- a/test/Linker/type-unique-simple2-b.ll
+++ b/test/Linker/type-unique-simple2-b.ll
@@ -22,7 +22,7 @@ define void @_ZN1A6setFooEv(%class.A* %this) unnamed_addr #0 align 2 {
 entry:
   %this.addr = alloca %class.A*, align 8
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !32, metadata !{metadata !"0x102"}), !dbg !34
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !32, metadata !{!"0x102"}), !dbg !34
   %this1 = load %class.A** %this.addr
   ret void, !dbg !35
 }
@@ -35,7 +35,7 @@ define i32 @_ZN1A6getFooEv(%class.A* %this) unnamed_addr #0 align 2 {
 entry:
   %this.addr = alloca %class.A*, align 8
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !36, metadata !{metadata !"0x102"}), !dbg !37
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !36, metadata !{!"0x102"}), !dbg !37
   %this1 = load %class.A** %this.addr
   ret i32 1, !dbg !38
 }
@@ -47,42 +47,42 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!29, !30}
 !llvm.ident = !{!31}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !25, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"<unknown>", metadata !""}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !"0x2\00A\002\0064\0064\000\000\000", metadata !5, null, null, metadata !6, 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 !""}
-!6 = metadata !{metadata !7, metadata !14, metadata !19}
-!7 = metadata !{metadata !"0xd\00_vptr$A\000\0064\000\000\0064", metadata !5, metadata !8, metadata !9} ; [ DW_TAG_member ] [_vptr$A] [line 0, size 64, align 0, offset 0] [artificial] [from ]
-!8 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [/./ab.h]
-!9 = metadata !{metadata !"0xf\00\000\0064\000\000\000", null, null, metadata !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
-!10 = metadata !{metadata !"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, metadata !11} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
-!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!12 = metadata !{metadata !13}
-!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!14 = metadata !{metadata !"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\004\000\000\001\006\00259\000\004", metadata !5, metadata !"_ZTS1A", metadata !15, metadata !"_ZTS1A", null, null, i32 0, metadata !18} ; [ DW_TAG_subprogram ] [line 4] [setFoo]
-!15 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!16 = metadata !{null, metadata !17}
-!17 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
-!18 = metadata !{i32 786468}
-!19 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\001\006\00259\000\005", metadata !5, metadata !"_ZTS1A", metadata !20, metadata !"_ZTS1A", null, null, i32 0, metadata !24} ; [ DW_TAG_subprogram ] [line 5] [getFoo]
-!20 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!21 = metadata !{metadata !22, metadata !17}
-!22 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !23} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo_t]
-!23 = metadata !{metadata !"0x16\00foo_t\001\000\000\000\000", metadata !5, null, metadata !13} ; [ DW_TAG_typedef ] [foo_t] [line 1, size 0, align 0, offset 0] [from int]
-!24 = metadata !{i32 786468}
-!25 = metadata !{metadata !26, metadata !28}
-!26 = metadata !{metadata !"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\002\000\001\000\006\00259\000\002", metadata !27, metadata !"_ZTS1A", metadata !15, null, void (%class.A*)* @_ZN1A6setFooEv, null, metadata !14, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [setFoo]
-!27 = metadata !{metadata !"b.cpp", metadata !""}
-!28 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\001\000\006\00259\000\004", metadata !27, metadata !"_ZTS1A", metadata !20, null, i32 (%class.A*)* @_ZN1A6getFooEv, null, metadata !19, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [getFoo]
-!29 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!30 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
-!31 = metadata !{metadata !"clang version 3.5 "}
-!32 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !26, null, metadata !33} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!33 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
-!34 = metadata !{i32 0, i32 0, metadata !26, null}
-!35 = metadata !{i32 2, i32 0, metadata !26, null}
-!36 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !28, null, metadata !33} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!37 = metadata !{i32 0, i32 0, metadata !28, null}
-!38 = metadata !{i32 4, i32 0, metadata !28, null}
+!0 = !{!"0x11\004\00clang version 3.5 \000\00\000\00\000", !1, !2, !3, !25, !2, !2} ; [ DW_TAG_compile_unit ] [/<unknown>] [DW_LANG_C_plus_plus]
+!1 = !{!"<unknown>", !""}
+!2 = !{}
+!3 = !{!4}
+!4 = !{!"0x2\00A\002\0064\0064\000\000\000", !5, null, null, !6, !"_ZTS1A", null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 64, align 64, offset 0] [def] [from ]
+!5 = !{!"./ab.h", !""}
+!6 = !{!7, !14, !19}
+!7 = !{!"0xd\00_vptr$A\000\0064\000\000\0064", !5, !8, !9} ; [ DW_TAG_member ] [_vptr$A] [line 0, size 64, align 0, offset 0] [artificial] [from ]
+!8 = !{!"0x29", !5}          ; [ DW_TAG_file_type ] [/./ab.h]
+!9 = !{!"0xf\00\000\0064\000\000\000", null, null, !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
+!10 = !{!"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, !11} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
+!11 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!12 = !{!13}
+!13 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!14 = !{!"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\004\000\000\001\006\00259\000\004", !5, !"_ZTS1A", !15, !"_ZTS1A", null, null, i32 0, !18} ; [ DW_TAG_subprogram ] [line 4] [setFoo]
+!15 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = !{null, !17}
+!17 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
+!18 = !{i32 786468}
+!19 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\001\006\00259\000\005", !5, !"_ZTS1A", !20, !"_ZTS1A", null, null, i32 0, !24} ; [ DW_TAG_subprogram ] [line 5] [getFoo]
+!20 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!21 = !{!22, !17}
+!22 = !{!"0x26\00\000\000\000\000\000", null, null, !23} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo_t]
+!23 = !{!"0x16\00foo_t\001\000\000\000\000", !5, null, !13} ; [ DW_TAG_typedef ] [foo_t] [line 1, size 0, align 0, offset 0] [from int]
+!24 = !{i32 786468}
+!25 = !{!26, !28}
+!26 = !{!"0x2e\00setFoo\00setFoo\00_ZN1A6setFooEv\002\000\001\000\006\00259\000\002", !27, !"_ZTS1A", !15, null, void (%class.A*)* @_ZN1A6setFooEv, null, !14, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [setFoo]
+!27 = !{!"b.cpp", !""}
+!28 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\001\000\006\00259\000\004", !27, !"_ZTS1A", !20, null, i32 (%class.A*)* @_ZN1A6getFooEv, null, !19, !2} ; [ DW_TAG_subprogram ] [line 4] [def] [getFoo]
+!29 = !{i32 2, !"Dwarf Version", i32 2}
+!30 = !{i32 1, !"Debug Info Version", i32 2}
+!31 = !{!"clang version 3.5 "}
+!32 = !{!"0x101\00this\0016777216\001088", !26, null, !33} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!33 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
+!34 = !MDLocation(line: 0, scope: !26)
+!35 = !MDLocation(line: 2, scope: !26)
+!36 = !{!"0x101\00this\0016777216\001088", !28, null, !33} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!37 = !MDLocation(line: 0, scope: !28)
+!38 = !MDLocation(line: 4, scope: !28)
diff --git a/test/Linker/type-unique-src-type.ll b/test/Linker/type-unique-src-type.ll
new file mode 100644
index 0000000..01b33a2
--- /dev/null
+++ b/test/Linker/type-unique-src-type.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as %s -o %t.bc
+; RUN: llvm-link -S %t.bc -o - | FileCheck %s
+; RUN: llvm-link -S %s -o - | FileCheck %s
+
+; Test that we don't try to map %C.0 and C and then try to map %C to a new type.
+; This used to happen when lazy loading since we wouldn't then identify %C
+; as a destination type until it was too late.
+
+; CHECK: %C.0 = type { %B }
+; CHECK-NEXT: %B = type { %A }
+; CHECK-NEXT: %A = type { i8 }
+
+; CHECK: @g1 = external global %C.0
+; CHECK:  getelementptr %C.0* null, i64 0, i32 0, i32 0
+
+%A   = type { i8 }
+%B   = type { %A }
+%C   = type { %B }
+%C.0 = type { %B }
+define void @f1() {
+  getelementptr %C* null, i64 0, i32 0, i32 0
+  ret void
+}
+@g1 = external global %C.0
diff --git a/test/Linker/type-unique-type-array-a.ll b/test/Linker/type-unique-type-array-a.ll
index 1b908c6..9e2de88 100644
--- a/test/Linker/type-unique-type-array-a.ll
+++ b/test/Linker/type-unique-type-array-a.ll
@@ -51,8 +51,8 @@ entry:
   %coerce.dive = getelementptr %struct.SA* %sa, i32 0, i32 0
   store i32 %sa.coerce, i32* %coerce.dive
   store %class.A* %a, %class.A** %a.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %a.addr}, metadata !24, metadata !{metadata !"0x102"}), !dbg !25
-  call void @llvm.dbg.declare(metadata !{%struct.SA* %sa}, metadata !26, metadata !{metadata !"0x102"}), !dbg !27
+  call void @llvm.dbg.declare(metadata %class.A** %a.addr, metadata !24, metadata !{!"0x102"}), !dbg !25
+  call void @llvm.dbg.declare(metadata %struct.SA* %sa, metadata !26, metadata !{!"0x102"}), !dbg !27
   %0 = load %class.A** %a.addr, align 8, !dbg !28
   %1 = bitcast %struct.SA* %agg.tmp to i8*, !dbg !28
   %2 = bitcast %struct.SA* %sa to i8*, !dbg !28
@@ -74,8 +74,8 @@ entry:
   %coerce.dive = getelementptr %struct.SA* %a, i32 0, i32 0
   store i32 %a.coerce, i32* %coerce.dive
   store %class.A* %this, %class.A** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !30, metadata !{metadata !"0x102"}), !dbg !31
-  call void @llvm.dbg.declare(metadata !{%struct.SA* %a}, metadata !32, metadata !{metadata !"0x102"}), !dbg !33
+  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !30, metadata !{!"0x102"}), !dbg !31
+  call void @llvm.dbg.declare(metadata %struct.SA* %a, metadata !32, metadata !{!"0x102"}), !dbg !33
   %this1 = load %class.A** %this.addr
   ret void, !dbg !34
 }
@@ -92,38 +92,38 @@ attributes #3 = { nounwind }
 !llvm.module.flags = !{!21, !22}
 !llvm.ident = !{!23}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)\000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [a.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"a.cpp", metadata !"/Users/manmanren/test-Nov/type_unique/rdar_di_array"}
-!2 = metadata !{}
-!3 = metadata !{metadata !4, metadata !10}
-!4 = metadata !{metadata !"0x2\00A\005\008\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 5, size 8, align 8, offset 0] [def] [from ]
-!5 = metadata !{metadata !6}
-!6 = metadata !{metadata !"0x2e\00testA\00testA\00_ZN1A5testAE2SA\007\000\000\000\006\00256\000\007", metadata !1, metadata !"_ZTS1A", metadata !7, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [testA]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{null, metadata !9, metadata !"_ZTS2SA"}
-!9 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
-!10 = metadata !{metadata !"0x13\00SA\001\0032\0032\000\000\000", metadata !1, null, null, metadata !11, null, null, metadata !"_ZTS2SA"} ; [ DW_TAG_structure_type ] [SA] [line 1, size 32, align 32, offset 0] [def] [from ]
-!11 = metadata !{metadata !12}
-!12 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !1, metadata !"_ZTS2SA", metadata !13} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!14 = metadata !{metadata !15, metadata !20}
-!15 = metadata !{metadata !"0x2e\00topA\00topA\00_Z4topAP1A2SA\0011\000\001\000\006\00256\000\0011", metadata !1, metadata !16, metadata !17, null, void (%class.A*, i32)* @_Z4topAP1A2SA, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [topA]
-!16 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [a.cpp]
-!17 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!18 = metadata !{null, metadata !19, metadata !"_ZTS2SA"}
-!19 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
-!20 = metadata !{metadata !"0x2e\00testA\00testA\00_ZN1A5testAE2SA\007\000\001\000\006\00256\000\007", metadata !1, metadata !"_ZTS1A", metadata !7, null, void (%class.A*, i32)* @_ZN1A5testAE2SA, null, metadata !6, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [testA]
-!21 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!22 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
-!23 = metadata !{metadata !"clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)"}
-!24 = metadata !{metadata !"0x101\00a\0016777227\000", metadata !15, metadata !16, metadata !19} ; [ DW_TAG_arg_variable ] [a] [line 11]
-!25 = metadata !{i32 11, i32 14, metadata !15, null}
-!26 = metadata !{metadata !"0x101\00sa\0033554443\000", metadata !15, metadata !16, metadata !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 11]
-!27 = metadata !{i32 11, i32 20, metadata !15, null}
-!28 = metadata !{i32 12, i32 3, metadata !15, null}
-!29 = metadata !{i32 13, i32 1, metadata !15, null}
-!30 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !20, null, metadata !19} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!31 = metadata !{i32 0, i32 0, metadata !20, null}
-!32 = metadata !{metadata !"0x101\00a\0033554439\000", metadata !20, metadata !16, metadata !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [a] [line 7]
-!33 = metadata !{i32 7, i32 17, metadata !20, null}
-!34 = metadata !{i32 8, i32 3, metadata !20, null}
+!0 = !{!"0x11\004\00clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)\000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [a.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"a.cpp", !"/Users/manmanren/test-Nov/type_unique/rdar_di_array"}
+!2 = !{}
+!3 = !{!4, !10}
+!4 = !{!"0x2\00A\005\008\008\000\000\000", !1, null, null, !5, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 5, size 8, align 8, offset 0] [def] [from ]
+!5 = !{!6}
+!6 = !{!"0x2e\00testA\00testA\00_ZN1A5testAE2SA\007\000\000\000\006\00256\000\007", !1, !"_ZTS1A", !7, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [testA]
+!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{null, !9, !"_ZTS2SA"}
+!9 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
+!10 = !{!"0x13\00SA\001\0032\0032\000\000\000", !1, null, null, !11, null, null, !"_ZTS2SA"} ; [ DW_TAG_structure_type ] [SA] [line 1, size 32, align 32, offset 0] [def] [from ]
+!11 = !{!12}
+!12 = !{!"0xd\00a\002\0032\0032\000\000", !1, !"_ZTS2SA", !13} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!13 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!14 = !{!15, !20}
+!15 = !{!"0x2e\00topA\00topA\00_Z4topAP1A2SA\0011\000\001\000\006\00256\000\0011", !1, !16, !17, null, void (%class.A*, i32)* @_Z4topAP1A2SA, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [topA]
+!16 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [a.cpp]
+!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!18 = !{null, !19, !"_ZTS2SA"}
+!19 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
+!20 = !{!"0x2e\00testA\00testA\00_ZN1A5testAE2SA\007\000\001\000\006\00256\000\007", !1, !"_ZTS1A", !7, null, void (%class.A*, i32)* @_ZN1A5testAE2SA, null, !6, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [testA]
+!21 = !{i32 2, !"Dwarf Version", i32 2}
+!22 = !{i32 2, !"Debug Info Version", i32 2}
+!23 = !{!"clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)"}
+!24 = !{!"0x101\00a\0016777227\000", !15, !16, !19} ; [ DW_TAG_arg_variable ] [a] [line 11]
+!25 = !MDLocation(line: 11, column: 14, scope: !15)
+!26 = !{!"0x101\00sa\0033554443\000", !15, !16, !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 11]
+!27 = !MDLocation(line: 11, column: 20, scope: !15)
+!28 = !MDLocation(line: 12, column: 3, scope: !15)
+!29 = !MDLocation(line: 13, column: 1, scope: !15)
+!30 = !{!"0x101\00this\0016777216\001088", !20, null, !19} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!31 = !MDLocation(line: 0, scope: !20)
+!32 = !{!"0x101\00a\0033554439\000", !20, !16, !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [a] [line 7]
+!33 = !MDLocation(line: 7, column: 17, scope: !20)
+!34 = !MDLocation(line: 8, column: 3, scope: !20)
diff --git a/test/Linker/type-unique-type-array-b.ll b/test/Linker/type-unique-type-array-b.ll
index 85ee5a5..0fdae2a 100644
--- a/test/Linker/type-unique-type-array-b.ll
+++ b/test/Linker/type-unique-type-array-b.ll
@@ -30,8 +30,8 @@ entry:
   %coerce.dive = getelementptr %struct.SA* %sa, i32 0, i32 0
   store i32 %sa.coerce, i32* %coerce.dive
   store %class.B* %b, %class.B** %b.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.B** %b.addr}, metadata !24, metadata !{metadata !"0x102"}), !dbg !25
-  call void @llvm.dbg.declare(metadata !{%struct.SA* %sa}, metadata !26, metadata !{metadata !"0x102"}), !dbg !27
+  call void @llvm.dbg.declare(metadata %class.B** %b.addr, metadata !24, metadata !{!"0x102"}), !dbg !25
+  call void @llvm.dbg.declare(metadata %struct.SA* %sa, metadata !26, metadata !{!"0x102"}), !dbg !27
   %0 = load %class.B** %b.addr, align 8, !dbg !28
   %1 = bitcast %struct.SA* %agg.tmp to i8*, !dbg !28
   %2 = bitcast %struct.SA* %sa to i8*, !dbg !28
@@ -53,8 +53,8 @@ entry:
   %coerce.dive = getelementptr %struct.SA* %sa, i32 0, i32 0
   store i32 %sa.coerce, i32* %coerce.dive
   store %class.B* %this, %class.B** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata !{%class.B** %this.addr}, metadata !30, metadata !{metadata !"0x102"}), !dbg !31
-  call void @llvm.dbg.declare(metadata !{%struct.SA* %sa}, metadata !32, metadata !{metadata !"0x102"}), !dbg !33
+  call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !30, metadata !{!"0x102"}), !dbg !31
+  call void @llvm.dbg.declare(metadata %struct.SA* %sa, metadata !32, metadata !{!"0x102"}), !dbg !33
   %this1 = load %class.B** %this.addr
   ret void, !dbg !34
 }
@@ -71,38 +71,38 @@ attributes #3 = { nounwind }
 !llvm.module.flags = !{!21, !22}
 !llvm.ident = !{!23}
 
-!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)\000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [b.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"b.cpp", metadata !"/Users/manmanren/test-Nov/type_unique/rdar_di_array"}
-!2 = metadata !{}
-!3 = metadata !{metadata !4, metadata !10}
-!4 = metadata !{metadata !"0x2\00B\005\008\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS1B"} ; [ DW_TAG_class_type ] [B] [line 5, size 8, align 8, offset 0] [def] [from ]
-!5 = metadata !{metadata !6}
-!6 = metadata !{metadata !"0x2e\00testB\00testB\00_ZN1B5testBE2SA\007\000\000\000\006\00256\000\007", metadata !1, metadata !"_ZTS1B", metadata !7, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [testB]
-!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{null, metadata !9, metadata !"_ZTS2SA"}
-!9 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1B]
-!10 = metadata !{metadata !"0x13\00SA\001\0032\0032\000\000\000", metadata !1, null, null, metadata !11, null, null, metadata !"_ZTS2SA"} ; [ DW_TAG_structure_type ] [SA] [line 1, size 32, align 32, offset 0] [def] [from ]
-!11 = metadata !{metadata !12}
-!12 = metadata !{metadata !"0xd\00a\002\0032\0032\000\000", metadata !1, metadata !"_ZTS2SA", metadata !13} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
-!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!14 = metadata !{metadata !15, metadata !20}
-!15 = metadata !{metadata !"0x2e\00topB\00topB\00_Z4topBP1B2SA\0011\000\001\000\006\00256\000\0011", metadata !1, metadata !16, metadata !17, null, void (%class.B*, i32)* @_Z4topBP1B2SA, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [topB]
-!16 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [b.cpp]
-!17 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!18 = metadata !{null, metadata !19, metadata !"_ZTS2SA"}
-!19 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1B]
-!20 = metadata !{metadata !"0x2e\00testB\00testB\00_ZN1B5testBE2SA\007\000\001\000\006\00256\000\007", metadata !1, metadata !"_ZTS1B", metadata !7, null, void (%class.B*, i32)* @_ZN1B5testBE2SA, null, metadata !6, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [testB]
-!21 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!22 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
-!23 = metadata !{metadata !"clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)"}
-!24 = metadata !{metadata !"0x101\00b\0016777227\000", metadata !15, metadata !16, metadata !19} ; [ DW_TAG_arg_variable ] [b] [line 11]
-!25 = metadata !{i32 11, i32 14, metadata !15, null}
-!26 = metadata !{metadata !"0x101\00sa\0033554443\000", metadata !15, metadata !16, metadata !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 11]
-!27 = metadata !{i32 11, i32 20, metadata !15, null}
-!28 = metadata !{i32 12, i32 3, metadata !15, null}
-!29 = metadata !{i32 13, i32 1, metadata !15, null}
-!30 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !20, null, metadata !19} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!31 = metadata !{i32 0, i32 0, metadata !20, null}
-!32 = metadata !{metadata !"0x101\00sa\0033554439\000", metadata !20, metadata !16, metadata !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 7]
-!33 = metadata !{i32 7, i32 17, metadata !20, null}
-!34 = metadata !{i32 8, i32 3, metadata !20, null}
+!0 = !{!"0x11\004\00clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)\000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [b.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"b.cpp", !"/Users/manmanren/test-Nov/type_unique/rdar_di_array"}
+!2 = !{}
+!3 = !{!4, !10}
+!4 = !{!"0x2\00B\005\008\008\000\000\000", !1, null, null, !5, null, null, !"_ZTS1B"} ; [ DW_TAG_class_type ] [B] [line 5, size 8, align 8, offset 0] [def] [from ]
+!5 = !{!6}
+!6 = !{!"0x2e\00testB\00testB\00_ZN1B5testBE2SA\007\000\000\000\006\00256\000\007", !1, !"_ZTS1B", !7, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [testB]
+!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = !{null, !9, !"_ZTS2SA"}
+!9 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1B]
+!10 = !{!"0x13\00SA\001\0032\0032\000\000\000", !1, null, null, !11, null, null, !"_ZTS2SA"} ; [ DW_TAG_structure_type ] [SA] [line 1, size 32, align 32, offset 0] [def] [from ]
+!11 = !{!12}
+!12 = !{!"0xd\00a\002\0032\0032\000\000", !1, !"_ZTS2SA", !13} ; [ DW_TAG_member ] [a] [line 2, size 32, align 32, offset 0] [from int]
+!13 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!14 = !{!15, !20}
+!15 = !{!"0x2e\00topB\00topB\00_Z4topBP1B2SA\0011\000\001\000\006\00256\000\0011", !1, !16, !17, null, void (%class.B*, i32)* @_Z4topBP1B2SA, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [topB]
+!16 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [b.cpp]
+!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!18 = !{null, !19, !"_ZTS2SA"}
+!19 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1B]
+!20 = !{!"0x2e\00testB\00testB\00_ZN1B5testBE2SA\007\000\001\000\006\00256\000\007", !1, !"_ZTS1B", !7, null, void (%class.B*, i32)* @_ZN1B5testBE2SA, null, !6, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [testB]
+!21 = !{i32 2, !"Dwarf Version", i32 2}
+!22 = !{i32 2, !"Debug Info Version", i32 2}
+!23 = !{!"clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)"}
+!24 = !{!"0x101\00b\0016777227\000", !15, !16, !19} ; [ DW_TAG_arg_variable ] [b] [line 11]
+!25 = !MDLocation(line: 11, column: 14, scope: !15)
+!26 = !{!"0x101\00sa\0033554443\000", !15, !16, !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 11]
+!27 = !MDLocation(line: 11, column: 20, scope: !15)
+!28 = !MDLocation(line: 12, column: 3, scope: !15)
+!29 = !MDLocation(line: 13, column: 1, scope: !15)
+!30 = !{!"0x101\00this\0016777216\001088", !20, null, !19} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!31 = !MDLocation(line: 0, scope: !20)
+!32 = !{!"0x101\00sa\0033554439\000", !20, !16, !"_ZTS2SA"} ; [ DW_TAG_arg_variable ] [sa] [line 7]
+!33 = !MDLocation(line: 7, column: 17, scope: !20)
+!34 = !MDLocation(line: 8, column: 3, scope: !20)
diff --git a/test/Linker/type-unique-unrelated.ll b/test/Linker/type-unique-unrelated.ll
new file mode 100644
index 0000000..26d05bb
--- /dev/null
+++ b/test/Linker/type-unique-unrelated.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-link -S %s %p/Inputs/type-unique-unrelated2.ll %p/Inputs/type-unique-unrelated3.ll | FileCheck %s
+
+; CHECK: %t = type { i8* }
+
+; CHECK: define %t @f2() {
+; CHECK-NEXT:   %x = call %t @f2()
+; CHECK-NEXT:   ret %t %x
+; CHECK-NEXT: }
+
+; CHECK: define %t @g2() {
+; CHECK-NEXT:   %x = call %t @g()
+; CHECK-NEXT:   ret %t %x
+; CHECK-NEXT: }
+
+; CHECK: define %t @g() {
+; CHECK-NEXT:  %x = call %t @f()
+; CHECK-NEXT:  ret %t %x
+; CHECK-NEXT: }
+
+; The idea of this test is that the %t in this file and the one in
+; type-unique-unrelated2.ll look unrelated until type-unique-unrelated3.ll
+; is merged in.
+
+%t = type { i8* }
+declare %t @f()
+
+define %t @f2() {
+ %x = call %t @f2()
+ ret %t %x
+}
+
diff --git a/test/Linker/unique-fwd-decl-a.ll b/test/Linker/unique-fwd-decl-a.ll
index b9c7b2f..c1a4b1d 100644
--- a/test/Linker/unique-fwd-decl-a.ll
+++ b/test/Linker/unique-fwd-decl-a.ll
@@ -5,5 +5,5 @@
 ; CHECK: !b = !{!0}
 
 !a = !{!0}
-!0 = metadata !{metadata !1}
-!1 = metadata !{}
+!0 = !{!1}
+!1 = !{}
diff --git a/test/Linker/unique-fwd-decl-order.ll b/test/Linker/unique-fwd-decl-order.ll
new file mode 100644
index 0000000..e1d8c2e
--- /dev/null
+++ b/test/Linker/unique-fwd-decl-order.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-link %s %S/Inputs/unique-fwd-decl-order.ll -S -o - | FileCheck %s
+; RUN: llvm-link %S/Inputs/unique-fwd-decl-order.ll %s -S -o - | FileCheck %s
+
+; This test exercises MDNode hashing.  For the nodes to be correctly uniqued,
+; the hash of a to-be-created MDNode has to match the hash of an
+; operand-just-changed MDNode (with the same operands).
+;
+; Note that these two assembly files number the nodes identically, even though
+; the nodes are in a different order.  This is for the reader's convenience.
+
+; CHECK: !named = !{!0, !0}
+!named = !{!0}
+
+; CHECK: !0 = !{!1}
+!0 = !{!1}
+
+; CHECK: !1 = !{}
+!1 = !{}
+
+; CHECK-NOT: !2
diff --git a/test/Linker/visibility.ll b/test/Linker/visibility.ll
index 6436197..4938d7a 100644
--- a/test/Linker/visibility.ll
+++ b/test/Linker/visibility.ll
@@ -17,8 +17,8 @@ $c1 = comdat any
 ; CHECK-DAG: @v3 = hidden global i32 0
 @v3 = protected global i32 0
 
-; CHECK-DAG: @v4 = hidden global i32 1, comdat $c1
-@v4 = global i32 1, comdat $c1
+; CHECK-DAG: @v4 = hidden global i32 1, comdat($c1)
+@v4 = global i32 1, comdat($c1)
 
 ; Aliases
 ; CHECK: @a1 = hidden alias i32* @v1
diff --git a/test/Linker/weakextern.ll b/test/Linker/weakextern.ll
index b9f2584..8d479a0 100644
--- a/test/Linker/weakextern.ll
+++ b/test/Linker/weakextern.ll
@@ -1,5 +1,5 @@
 ; RUN: llvm-as < %s > %t.bc
-; RUN: llvm-as < %p/testlink1.ll > %t2.bc
+; RUN: llvm-as < %p/testlink.ll > %t2.bc
 ; RUN: llvm-link %t.bc %t.bc %t2.bc -o %t1.bc
 ; RUN: llvm-dis < %t1.bc | FileCheck %s
 ; CHECK: kallsyms_names = extern_weak