Fix error message to match function name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106381 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index d0c4022..333907c 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -2949,7 +2949,7 @@
   }
 
   default:
-    llvm_unreachable("unexpected size for EncodeNEONModImm");
+    llvm_unreachable("unexpected size for isNEONModifiedImm");
     return SDValue();
   }