diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index af309926afd6..a2edf0505087 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -357,7 +357,9 @@ bool LLParser::ParseNamedGlobal() {
 /// ParseAlias:
 ///   ::= GlobalVar '=' OptionalVisibility 'alias' OptionalLinkage Aliasee
 /// Aliasee
-///   ::= TypeAndValue | 'bitcast' '(' TypeAndValue 'to' Type ')'
+///   ::= TypeAndValue
+///   ::= 'bitcast' '(' TypeAndValue 'to' Type ')'
+///   ::= 'getelementptr' '(' ... ')'
 ///
 /// Everything through visibility has already been parsed.
 ///
@@ -379,7 +381,8 @@ bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc,
   
   Constant *Aliasee;
   LocTy AliaseeLoc = Lex.getLoc();
-  if (Lex.getKind() != lltok::kw_bitcast) {
+  if (Lex.getKind() != lltok::kw_bitcast &&
+      Lex.getKind() != lltok::kw_getelementptr) {
     if (ParseGlobalTypeAndValue(Aliasee)) return true;
   } else {
     // The bitcast dest type is not present, it is implied by the dest type.
diff --git a/llvm/test/Assembler/2009-04-25-AliasGEP.ll b/llvm/test/Assembler/2009-04-25-AliasGEP.ll
new file mode 100644
index 000000000000..6d07208defe3
--- /dev/null
+++ b/llvm/test/Assembler/2009-04-25-AliasGEP.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis
+; PR4066
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i386-apple-darwin9"
+	%struct.i2c_device_id = type { }
+@w83l785ts_id = internal constant [0 x %struct.i2c_device_id] zeroinitializer, align 1		; <[0 x %struct.i2c_device_id]*> [#uses=1]
+
+@__mod_i2c_device_table = alias getelementptr ([0 x %struct.i2c_device_id]* @w83l785ts_id, i32 0, i32 0)		; <%struct.i2c_device_id*> [#uses=0]