Index: lib/CodeGen/AsmPrinter/AsmPrinter.cpp
===================================================================
--- lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -318,17 +318,14 @@
       OutStreamer->EmitSymbolAttribute(GVSym, MCSA_Weak);
     }
     return;
-  case GlobalValue::AppendingLinkage:
-    // FIXME: appending linkage variables should go into a section of
-    // their name or something.  For now, just emit them as external.
   case GlobalValue::ExternalLinkage:
-    // If external or appending, declare as a global symbol.
-    // .globl _foo
+    // If external, declare as a global symbol: .globl _foo
     OutStreamer->EmitSymbolAttribute(GVSym, MCSA_Global);
     return;
   case GlobalValue::PrivateLinkage:
   case GlobalValue::InternalLinkage:
     return;
+  case GlobalValue::AppendingLinkage:
   case GlobalValue::AvailableExternallyLinkage:
   case GlobalValue::ExternalWeakLinkage:
     llvm_unreachable("Should never emit this");
@@ -1562,7 +1559,7 @@
     return true;
   }
 
-  return false;
+  report_fatal_error("unknown special variable");
 }
 
 /// EmitLLVMUsedList - For targets that define a MAI::UsedDirective, mark each
Index: test/CodeGen/X86/2007-08-13-AppendingLinkage.ll
===================================================================
--- test/CodeGen/X86/2007-08-13-AppendingLinkage.ll
+++ /dev/null
@@ -1,12 +0,0 @@
-; RUN: llc < %s -march=x86 | not grep drectve
-; PR1607
-
-%hlvm_programs_element = type { i8*, i32 (i32, i8**)* }
-@hlvm_programs = appending constant [1 x %hlvm_programs_element]
-zeroinitializer
-
-define %hlvm_programs_element* @hlvm_get_programs() {
-entry:
-  ret %hlvm_programs_element* getelementptr([1 x %hlvm_programs_element], [1 x %hlvm_programs_element]*  
-                                            @hlvm_programs, i32 0, i32 0)
-}
Index: test/CodeGen/X86/AppendingLinkage.ll
===================================================================
--- /dev/null
+++ test/CodeGen/X86/AppendingLinkage.ll
@@ -0,0 +1,4 @@
+; RUN: not llc < %s -march=x86 2>&1 | FileCheck %s
+
+; CHECK: unknown special variable
+@foo = appending constant [1 x i32 ]zeroinitializer