diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index a2eca91c67e..a69fe1d8e20 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2244,6 +2244,12 @@ bool SelectionDAG::MaskedValueIsZero(SDValue V, const APInt &Mask, return Mask.isSubsetOf(computeKnownBits(V, DemandedElts, Depth).Zero); } +/// MaskedValueIsAllOnes - Return true if '(Op & Mask) == Mask'. +bool SelectionDAG::MaskedValueIsAllOnes(SDValue V, const APInt &Mask, + unsigned Depth) const { + return Mask.isSubsetOf(computeKnownBits(V, Depth).One); +} + /// isSplatValue - Return true if the vector V has the same value /// across all DemandedElts. bool SelectionDAG::isSplatValue(SDValue V, const APInt &DemandedElts, |
