try to match alpha pattern


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19972 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaTargetMachine.h b/lib/Target/Alpha/AlphaTargetMachine.h
index 75d1353..d67dd3f 100644
--- a/lib/Target/Alpha/AlphaTargetMachine.h
+++ b/lib/Target/Alpha/AlphaTargetMachine.h
@@ -38,7 +38,8 @@
   }
  
   virtual bool addPassesToEmitAssembly(PassManager &PM, std::ostream &Out);
-  
+
+  static unsigned getModuleMatchQuality(const Module &M);
 };
 
 } // end namespace llvm