diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index 3282dc6..d396137 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -5305,7 +5305,7 @@
     return false;
 
   SmallVector<Instruction*, 4> Insts;
-  if (!recognizeBitReverseOrBSwapIdiom(&I, false, true, Insts))
+  if (!recognizeBSwapOrBitReverseIdiom(&I, false, true, Insts))
     return false;
   Instruction *LastInst = Insts.back();
   I.replaceAllUsesWith(LastInst);