Update the comments for ComputeMaskedBits, which lost its Mask parameter

in r154011.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208757 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 7 deletions

diff --git a/include/llvm/Analysis/ValueTracking.h b/include/llvm/Analysis/ValueTracking.h
index 55f5bd1475..b1afc795a0 100644
--- a/include/llvm/Analysis/ValueTracking.h
+++ b/include/llvm/Analysis/ValueTracking.h
@@ -27,14 +27,13 @@ namespace llvm {
   class MDNode;
   class TargetLibraryInfo;
 
-  /// ComputeMaskedBits - Determine which of the bits specified in Mask are
+  /// ComputeMaskedBits - Determine which bits of V are
   /// known to be either zero or one and return them in the KnownZero/KnownOne
-  /// bit sets.  This code only analyzes bits in Mask, in order to short-circuit
-  /// processing.
+  /// bit sets.
   ///
   /// This function is defined on values with integer type, values with pointer
   /// type (but only if TD is non-null), and vectors of integers.  In the case
-  /// where V is a vector, the mask, known zero, and known one values are the
+  /// where V is a vector, the known zero and known one values are the
   /// same width as the vector element, and the bit is set only if it is true
   /// for all of the elements in the vector.
   void ComputeMaskedBits(Value *V,  APInt &KnownZero, APInt &KnownOne,
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index 2dce0b3371..691092ad8b 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -1079,10 +1079,9 @@ public:
   bool MaskedValueIsZero(SDValue Op, const APInt &Mask, unsigned Depth = 0)
     const;
 
-  /// 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.  Targets can implement the computeMaskedBitsForTargetNode
+  /// bitsets.  Targets can implement the computeMaskedBitsForTargetNode
   /// method in the TargetLowering class to allow target nodes to be understood.
   void ComputeMaskedBits(SDValue Op, APInt &KnownZero, APInt &KnownOne,
                          unsigned Depth = 0) const;