diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
-rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 2b7ba1ffb30..36c43691891 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1489,24 +1489,20 @@ SDValue SelectionDAGLegalize::ExpandFCOPYSIGN(SDNode *Node) const { // Get the signbit at the right position for MagAsInt. int ShiftAmount = SignAsInt.SignBit - MagAsInt.SignBit; + EVT ShiftVT = IntVT; + if (SignBit.getValueSizeInBits() < ClearedSign.getValueSizeInBits()) { + SignBit = DAG.getNode(ISD::ZERO_EXTEND, DL, MagVT, SignBit); + ShiftVT = MagVT; + } + if (ShiftAmount > 0) { + SDValue ShiftCnst = DAG.getConstant(ShiftAmount, DL, ShiftVT); + SignBit = DAG.getNode(ISD::SRL, DL, ShiftVT, SignBit, ShiftCnst); + } else if (ShiftAmount < 0) { + SDValue ShiftCnst = DAG.getConstant(-ShiftAmount, DL, ShiftVT); + SignBit = DAG.getNode(ISD::SHL, DL, ShiftVT, SignBit, ShiftCnst); + } if (SignBit.getValueSizeInBits() > ClearedSign.getValueSizeInBits()) { - if (ShiftAmount > 0) { - SDValue ShiftCnst = DAG.getConstant(ShiftAmount, DL, IntVT); - SignBit = DAG.getNode(ISD::SRL, DL, IntVT, SignBit, ShiftCnst); - } else if (ShiftAmount < 0) { - SDValue ShiftCnst = DAG.getConstant(-ShiftAmount, DL, IntVT); - SignBit = DAG.getNode(ISD::SHL, DL, IntVT, SignBit, ShiftCnst); - } SignBit = DAG.getNode(ISD::TRUNCATE, DL, MagVT, SignBit); - } else if (SignBit.getValueSizeInBits() < ClearedSign.getValueSizeInBits()) { - SignBit = DAG.getNode(ISD::ZERO_EXTEND, DL, MagVT, SignBit); - if (ShiftAmount > 0) { - SDValue ShiftCnst = DAG.getConstant(ShiftAmount, DL, MagVT); - SignBit = DAG.getNode(ISD::SRL, DL, MagVT, SignBit, ShiftCnst); - } else if (ShiftAmount < 0) { - SDValue ShiftCnst = DAG.getConstant(-ShiftAmount, DL, MagVT); - SignBit = DAG.getNode(ISD::SHL, DL, MagVT, SignBit, ShiftCnst); - } } // Store the part with the modified sign and convert back to float. |