Update the comments for ComputeMaskedBits, which lost its Mask parameter

in r154011.

llvm-svn: 208757

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 4bf147730bf..62a2317d34f 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1812,10 +1812,9 @@ bool SelectionDAG::MaskedValueIsZero(SDValue Op, const APInt &Mask,
   return (KnownZero & Mask) == Mask;
 }
 
-/// ComputeMaskedBits - Determine which of the bits specified in Mask are
+/// ComputeMaskedBits - Determine which bits of Op are
 /// known to be either zero or one and return them in the KnownZero/KnownOne
-/// bitsets.  This code only analyzes bits in Mask, in order to short-circuit
-/// processing.
+/// bitsets.
 void SelectionDAG::ComputeMaskedBits(SDValue Op, APInt &KnownZero,
                                      APInt &KnownOne, unsigned Depth) const {
   const TargetLowering *TLI = TM.getTargetLowering();