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Add promote operand support for [su]int_to_fp. 

llvm-svn: 43204
This commit is contained in:
Chris Lattner 2007-10-20 22:57:56 +00:00
parent 18be874e67
commit 36f06c80e6
1 changed files with 15 additions and 0 deletions
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15
llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
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@ -185,6 +185,7 @@ private:
SDOperand PromoteOperand_TRUNCATE(SDNode *N); SDOperand PromoteOperand_TRUNCATE(SDNode *N);
SDOperand PromoteOperand_FP_EXTEND(SDNode *N); SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
SDOperand PromoteOperand_FP_ROUND(SDNode *N); SDOperand PromoteOperand_FP_ROUND(SDNode *N);
SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo);
@ -1326,6 +1327,8 @@ bool DAGTypeLegalizer::PromoteOperand(SDNode *N, unsigned OpNo) {
case ISD::TRUNCATE: Res = PromoteOperand_TRUNCATE(N); break; case ISD::TRUNCATE: Res = PromoteOperand_TRUNCATE(N); break;
case ISD::FP_EXTEND: Res = PromoteOperand_FP_EXTEND(N); break; case ISD::FP_EXTEND: Res = PromoteOperand_FP_EXTEND(N); break;
case ISD::FP_ROUND: Res = PromoteOperand_FP_ROUND(N); break; case ISD::FP_ROUND: Res = PromoteOperand_FP_ROUND(N); break;
case ISD::SINT_TO_FP:
case ISD::UINT_TO_FP: Res = PromoteOperand_INT_TO_FP(N); break;
case ISD::SELECT: Res = PromoteOperand_SELECT(N, OpNo); break; case ISD::SELECT: Res = PromoteOperand_SELECT(N, OpNo); break;
case ISD::BRCOND: Res = PromoteOperand_BRCOND(N, OpNo); break; case ISD::BRCOND: Res = PromoteOperand_BRCOND(N, OpNo); break;
@ -1390,6 +1393,18 @@ SDOperand DAGTypeLegalizer::PromoteOperand_FP_ROUND(SDNode *N) {
return DAG.getNode(ISD::FP_ROUND, N->getValueType(0), Op); return DAG.getNode(ISD::FP_ROUND, N->getValueType(0), Op);
} }
SDOperand DAGTypeLegalizer::PromoteOperand_INT_TO_FP(SDNode *N) {
SDOperand In = GetPromotedOp(N->getOperand(0));
MVT::ValueType OpVT = N->getOperand(0).getValueType();
if (N->getOpcode() == ISD::UINT_TO_FP)
In = DAG.getZeroExtendInReg(In, OpVT);
else
In = DAG.getNode(ISD::SIGN_EXTEND_INREG, In.getValueType(),
In, DAG.getValueType(OpVT));
return DAG.UpdateNodeOperands(SDOperand(N, 0), In);
}
SDOperand DAGTypeLegalizer::PromoteOperand_SELECT(SDNode *N, unsigned OpNo) { SDOperand DAGTypeLegalizer::PromoteOperand_SELECT(SDNode *N, unsigned OpNo) {
assert(OpNo == 0 && "Only know how to promote condition"); assert(OpNo == 0 && "Only know how to promote condition");