diff --git a/llvm/include/llvm/Support/PatternMatch.h b/llvm/include/llvm/Support/PatternMatch.h
index f02bc347a17ec102db137b560247f3359cb05899..bee676863780e107257ada795b0a2dcc4a4a2a8a 100644
--- a/llvm/include/llvm/Support/PatternMatch.h
+++ b/llvm/include/llvm/Support/PatternMatch.h
@@ -453,6 +453,13 @@ struct CastClass_match {
   }
 };
 
+/// m_BitCast
+template<typename OpTy>
+inline CastClass_match<OpTy, Instruction::BitCast>
+m_BitCast(const OpTy &Op) {
+  return CastClass_match<OpTy, Instruction::BitCast>(Op);
+}
+  
 /// m_PtrToInt
 template<typename OpTy>
 inline CastClass_match<OpTy, Instruction::PtrToInt>