SDValue ExpandEXTRACT_SUBVECTOR(SDValue Op);
SDValue ExpandEXTRACT_VECTOR_ELT(SDValue Op);
+
+ // Returns the legalized (truncated or extended) shift amount.
+ SDValue LegalizeShiftAmount(SDValue ShiftAmt);
};
}
Operands[j] = Operand;
}
}
- Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT,
- &Operands[0], Operands.size()));
+
+ switch (Op.getOpcode()) {
+ default:
+ Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT,
+ &Operands[0], Operands.size()));
+ break;
+ case ISD::SHL:
+ case ISD::SRA:
+ case ISD::SRL:
+ Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, Operands[0],
+ LegalizeShiftAmount(Operands[1])));
+ break;
+ }
}
return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size());
PseudoSourceValue::getFixedStack(SPFI), 0);
}
+SDValue SelectionDAGLegalize::LegalizeShiftAmount(SDValue ShiftAmt) {
+ if (TLI.getShiftAmountTy().bitsLT(ShiftAmt.getValueType()))
+ return DAG.getNode(ISD::TRUNCATE, TLI.getShiftAmountTy(), ShiftAmt);
+
+ if (TLI.getShiftAmountTy().bitsGT(ShiftAmt.getValueType()))
+ return DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), ShiftAmt);
+
+ return ShiftAmt;
+}
+
+
/// LegalizeOp - We know that the specified value has a legal type, and
/// that its operands are legal. Now ensure that the operation itself
/// is legal, recursively ensuring that the operands' operations remain
Node->getOpcode() == ISD::SRL ||
Node->getOpcode() == ISD::SRA) &&
!Node->getValueType(0).isVector()) {
- if (TLI.getShiftAmountTy().bitsLT(Tmp2.getValueType()))
- Tmp2 = DAG.getNode(ISD::TRUNCATE, TLI.getShiftAmountTy(), Tmp2);
- else if (TLI.getShiftAmountTy().bitsGT(Tmp2.getValueType()))
- Tmp2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Tmp2);
- }
+ Tmp2 = LegalizeShiftAmount(Tmp2);
+ }
Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2);