Add left shift

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70747 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430ISelLowering.h b/lib/Target/MSP430/MSP430ISelLowering.h
index f14af1d..d6739cb 100644
--- a/lib/Target/MSP430/MSP430ISelLowering.h
+++ b/lib/Target/MSP430/MSP430ISelLowering.h
@@ -27,8 +27,8 @@
       /// Return with a flag operand. Operand 0 is the chain operand.
       RET_FLAG,
 
-      /// Y = RRA X, rotate right arithmetically
-      RRA,
+      /// Y = R{R,L}A X, rotate right (left) arithmetically
+      RRA, RLA,
 
       /// CALL/TAILCALL - These operations represent an abstract call
       /// instruction, which includes a bunch of information.