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Allow targets to define custom expanders for FP_TO_*INT 

llvm-svn: 22548
This commit is contained in:
Chris Lattner 2005-07-29 00:33:32 +00:00
parent 44fe26ff07
commit fe68d75aad
1 changed files with 18 additions and 0 deletions
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18
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -2772,12 +2772,30 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
// These operators cannot be expanded directly, emit them as calls to
// library functions.
case ISD::FP_TO_SINT:
if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) {
SDOperand Op = DAG.getNode(ISD::FP_TO_SINT, VT,
LegalizeOp(Node->getOperand(0)));
// Now that the custom expander is done, expand the result, which is still
// VT.
ExpandOp(TLI.LowerOperation(Op, DAG), Lo, Hi);
break;
}
if (Node->getOperand(0).getValueType() == MVT::f32)
Lo = ExpandLibCall("__fixsfdi", Node, Hi);
else
Lo = ExpandLibCall("__fixdfdi", Node, Hi);
break;
case ISD::FP_TO_UINT:
if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) {
SDOperand Op = DAG.getNode(ISD::FP_TO_UINT, VT,
LegalizeOp(Node->getOperand(0)));
// Now that the custom expander is done, expand the result, which is still
// VT.
ExpandOp(TLI.LowerOperation(Op, DAG), Lo, Hi);
break;
}
if (Node->getOperand(0).getValueType() == MVT::f32)
Lo = ExpandLibCall("__fixunssfdi", Node, Hi);
else