diff --git a/llvm/include/llvm/Target/TargetMachineImpls.h b/llvm/include/llvm/Target/TargetMachineImpls.h
index 83bebbddaf35..e9156c7b2dc6 100644
--- a/llvm/include/llvm/Target/TargetMachineImpls.h
+++ b/llvm/include/llvm/Target/TargetMachineImpls.h
@@ -1,11 +1,12 @@
-//===-- llvm/CodeGen/Sparc.h - Sparc Target Description ----------*- C++ -*--=//
+//===-- llvm/Target/TargetMachineImpls.h - Target Descriptions --*- C++ -*-===//
 //
-// This file defines the Sparc processor targets
+// This file defines the entry point to getting access to the various target
+// machine implementations available to LLVM.
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CODEGEN_SPARC_H
-#define LLVM_CODEGEN_SPARC_H
+#ifndef LLVM_TARGET_TARGETMACHINEIMPLS_H
+#define LLVM_TARGET_TARGETMACHINEIMPLS_H
 
 class TargetMachine;
 
@@ -14,4 +15,9 @@ class TargetMachine;
 //
 TargetMachine *allocateSparcTargetMachine();
 
+// allocateX86TargetMachine - Allocate and return a subclass of TargetMachine
+// that implements the X86 backend.
+//
+TargetMachine *allocateX86TargetMachine();
+
 #endif