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At long last, you can say that f32 isn't supported for setcc

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24537 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2005-11-30 17:12:26 +00:00
parent b2156f91f5
commit ae35575957
1 changed files with 28 additions and 1 deletions
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29
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -1438,10 +1438,37 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
default:
assert(0 && "Cannot handle this action for SETCC yet!");
break;
case TargetLowering::Promote:
case TargetLowering::Promote: {
// First step, figure out the appropriate operation to use.
// Allow SETCC to not be supported for all legal data types
// Mostly this targets FP
MVT::ValueType NewInTy = Node->getOperand(0).getValueType();
MVT::ValueType OldVT = NewInTy;
// Scan for the appropriate larger type to use.
while (1) {
NewInTy = (MVT::ValueType)(NewInTy+1);
assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) &&
"Fell off of the edge of the integer world");
assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) &&
"Fell off of the edge of the floating point world");
// If the target supports SETCC of this type, use it.
if (TLI.getOperationAction(ISD::SETCC, NewInTy) == TargetLowering::Legal)
break;
}
if (MVT::isInteger(NewInTy))
assert(0 && "Cannot promote Legal Integer SETCC yet");
else {
Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1);
Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2);
}
Result = DAG.getNode(ISD::SETCC, Node->getValueType(0), Tmp1, Tmp2,
Node->getOperand(2));
break;
}
case TargetLowering::Legal:
if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1))
Result = DAG.getNode(ISD::SETCC, Node->getValueType(0), Tmp1, Tmp2,