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legalize vbit_convert nodes whose result is a legal type.

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Legalize intrinsic nodes.

llvm-svn: 27036
This commit is contained in:
Chris Lattner 2006-03-24 02:26:29 +00:00
parent 041588d953
commit f7ceb5fdd4
1 changed files with 38 additions and 0 deletions
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38
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -552,6 +552,14 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
}
break;
}
case ISD::INTRINSIC: {
std::vector<SDOperand> Ops;
for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i)
Ops.push_back(LegalizeOp(Node->getOperand(i)));
Result = DAG.UpdateNodeOperands(Result, Ops);
break;
}
case ISD::LOCATION:
assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!");
@ -2312,6 +2320,36 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
}
}
break;
case ISD::VBIT_CONVERT: {
assert(Op.getOperand(0).getValueType() == MVT::Vector &&
"Can only have VBIT_CONVERT where input or output is MVT::Vector!");
// The input has to be a vector type, we have to either scalarize it, pack
// it, or convert it based on whether the input vector type is legal.
SDNode *InVal = Node->getOperand(0).Val;
unsigned NumElems =
cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue();
MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT();
// Figure out if there is a Packed type corresponding to this Vector
// type. If so, convert to the packed type.
MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems);
if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) {
// Turn this into a bit convert of the packed input.
Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0),
PackVectorOp(Node->getOperand(0), TVT));
break;
} else if (NumElems == 1) {
// Turn this into a bit convert of the scalar input.
Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0),
PackVectorOp(Node->getOperand(0), EVT));
break;
} else {
// FIXME: UNIMP! Store then reload
assert(0 && "Cast from unsupported vector type not implemented yet!");
}
}
// Conversion operators. The source and destination have different types.
case ISD::SINT_TO_FP:
case ISD::UINT_TO_FP: {