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bring sanity to EnforceVectorEltType

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-03-24 00:01:16 +00:00
parent 640a3f5309
commit 66fb9d26c6
2 changed files with 31 additions and 27 deletions
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56
utils/TableGen/CodeGenDAGPatterns.cpp
View File

@ -394,24 +394,39 @@ bool EEVT::TypeSet::EnforceSmallerThan(EEVT::TypeSet &Other, TreePattern &TP) {
}
/// EnforceVectorEltTypeIs - 'this' is now constrainted to be a vector type
/// whose element is VT.
bool EEVT::TypeSet::EnforceVectorEltTypeIs(MVT::SimpleValueType VT,
/// whose element is specified by VTOperand.
bool EEVT::TypeSet::EnforceVectorEltTypeIs(EEVT::TypeSet &VTOperand,
TreePattern &TP) {
TypeSet InputSet(*this);
// "This" must be a vector and "VTOperand" must be a scalar.
bool MadeChange = false;
MadeChange |= EnforceVector(TP);
MadeChange |= VTOperand.EnforceScalar(TP);
// If we know the vector type, it forces the scalar to agree.
if (isConcrete()) {
EVT IVT = getConcrete();
IVT = IVT.getVectorElementType();
return MadeChange |
VTOperand.MergeInTypeInfo(IVT.getSimpleVT().SimpleTy, TP);
}
// If the scalar type is known, filter out vector types whose element types
// disagree.
if (!VTOperand.isConcrete())
return MadeChange;
// If we know nothing, then get the full set.
if (TypeVec.empty())
MadeChange = FillWithPossibleTypes(TP, isVector, "vector");
MVT::SimpleValueType VT = VTOperand.getConcrete();
// Filter out all the non-vector types and types which don't have the right
// element type.
for (unsigned i = 0; i != TypeVec.size(); ++i)
if (!isVector(TypeVec[i]) ||
EVT(TypeVec[i]).getVectorElementType().getSimpleVT().SimpleTy != VT) {
TypeSet InputSet(*this);
// Filter out all the types which don't have the right element type.
for (unsigned i = 0; i != TypeVec.size(); ++i) {
assert(isVector(TypeVec[i]) && "EnforceVector didn't work");
if (EVT(TypeVec[i]).getVectorElementType().getSimpleVT().SimpleTy != VT) {
TypeVec.erase(TypeVec.begin()+i--);
MadeChange = true;
}
}
if (TypeVec.empty()) // FIXME: Really want an SMLoc here!
TP.error("Type inference contradiction found, forcing '" +
@ -642,22 +657,11 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
TreePatternNode *VecOperand =
getOperandNum(x.SDTCisEltOfVec_Info.OtherOperandNum, N, NodeInfo,
VResNo);
if (VecOperand->hasTypeSet(VResNo)) {
if (!isVector(VecOperand->getType(VResNo)))
TP.error(N->getOperator()->getName() + " VT operand must be a vector!");
EVT IVT = VecOperand->getType(VResNo);
IVT = IVT.getVectorElementType();
return NodeToApply->UpdateNodeType(ResNo, IVT.getSimpleVT().SimpleTy, TP);
}
if (NodeToApply->hasTypeSet(ResNo) &&
VecOperand->getExtType(VResNo).hasVectorTypes()){
// Filter vector types out of VecOperand that don't have the right element
// type.
return VecOperand->getExtType(VResNo).
EnforceVectorEltTypeIs(NodeToApply->getType(ResNo), TP);
}
return false;
// Filter vector types out of VecOperand that don't have the right element
// type.
return VecOperand->getExtType(VResNo).
EnforceVectorEltTypeIs(NodeToApply->getExtType(ResNo), TP);
}
}
return false;

2
utils/TableGen/CodeGenDAGPatterns.h
View File

@ -129,7 +129,7 @@ namespace EEVT {
/// EnforceVectorEltTypeIs - 'this' is now constrainted to be a vector type
/// whose element is VT.
bool EnforceVectorEltTypeIs(MVT::SimpleValueType VT, TreePattern &TP);
bool EnforceVectorEltTypeIs(EEVT::TypeSet &VT, TreePattern &TP);
bool operator!=(const TypeSet &RHS) const { return TypeVec != RHS.TypeVec; }
bool operator==(const TypeSet &RHS) const { return TypeVec == RHS.TypeVec; }