diff options
Diffstat (limited to 'include/llvm/CodeGen')
| -rw-r--r-- | include/llvm/CodeGen/SelectionDAG.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h index c402958..cdb15a9 100644 --- a/include/llvm/CodeGen/SelectionDAG.h +++ b/include/llvm/CodeGen/SelectionDAG.h @@ -555,10 +555,14 @@ public: SDOperand FoldSetCC(MVT::ValueType VT, SDOperand N1, SDOperand N2, ISD::CondCode Cond); + /// SignBitIsZero - Return true if the sign bit of Op is known to be zero. We + /// use this predicate to simplify operations downstream. + bool SignBitIsZero(SDOperand Op, unsigned Depth = 0) const; + /// MaskedValueIsZero - Return true if 'Op & Mask' is known to be zero. We /// use this predicate to simplify operations downstream. Op and Mask are /// known to be the same type. - bool MaskedValueIsZero(SDOperand Op, uint64_t Mask, unsigned Depth = 0) + bool MaskedValueIsZero(SDOperand Op, const APInt &Mask, unsigned Depth = 0) const; /// ComputeMaskedBits - Determine which of the bits specified in Mask are |