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make getOperandNum a static function (since it's just used by

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ApplyTypeConstraint) and make it handle multiple result nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99003 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-03-19 21:56:21 +00:00
parent 6c7ed6b549
commit 2e68a02c26
2 changed files with 28 additions and 31 deletions
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54
utils/TableGen/CodeGenDAGPatterns.cpp
View File

@ -538,24 +538,27 @@ SDTypeConstraint::SDTypeConstraint(Record *R) {
}
/// getOperandNum - Return the node corresponding to operand #OpNo in tree
/// N, which has NumResults results.
TreePatternNode *SDTypeConstraint::getOperandNum(unsigned OpNo,
TreePatternNode *N,
unsigned NumResults) const {
assert(NumResults <= 1 &&
"We only work with nodes with zero or one result so far!");
/// N, and the result number in ResNo.
static TreePatternNode *getOperandNum(unsigned OpNo, TreePatternNode *N,
const SDNodeInfo &NodeInfo,
unsigned &ResNo) {
unsigned NumResults = NodeInfo.getNumResults();
if (OpNo < NumResults) {
ResNo = OpNo;
return N;
}
if (OpNo >= (NumResults + N->getNumChildren())) {
errs() << "Invalid operand number " << OpNo << " ";
OpNo -= NumResults;
if (OpNo >= N->getNumChildren()) {
errs() << "Invalid operand number in type constraint "
<< (OpNo+NumResults) << " ";
N->dump();
errs() << '\n';
exit(1);
}
if (OpNo < NumResults)
return N; // FIXME: need value #
else
return N->getChild(OpNo-NumResults);
return N->getChild(OpNo);
}
/// ApplyTypeConstraint - Given a node in a pattern, apply this type
@ -565,11 +568,6 @@ TreePatternNode *SDTypeConstraint::getOperandNum(unsigned OpNo,
bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
const SDNodeInfo &NodeInfo,
TreePattern &TP) const {
unsigned NumResults = NodeInfo.getNumResults();
unsigned ResNo = 0; // TODO: Set to the result # we're working with.
assert(NumResults <= 1 &&
"We only work with nodes with zero or one result so far!");
// Check that the number of operands is sane. Negative operands -> varargs.
if (NodeInfo.getNumOperands() >= 0) {
if (N->getNumChildren() != (unsigned)NodeInfo.getNumOperands())
@ -577,7 +575,8 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
itostr(NodeInfo.getNumOperands()) + " operands!");
}
TreePatternNode *NodeToApply = getOperandNum(OperandNo, N, NumResults);
unsigned ResNo = 0; // The result number being referenced.
TreePatternNode *NodeToApply = getOperandNum(OperandNo, N, NodeInfo, ResNo);
switch (ConstraintType) {
default: assert(0 && "Unknown constraint type!");
@ -597,9 +596,9 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
// Require it to be one of the legal vector VTs.
return NodeToApply->getExtType(ResNo).EnforceVector(TP);
case SDTCisSameAs: {
unsigned OResNo = 0; // FIXME: getOperandNum should return pair.
unsigned OResNo = 0;
TreePatternNode *OtherNode =
getOperandNum(x.SDTCisSameAs_Info.OtherOperandNum, N, NumResults);
getOperandNum(x.SDTCisSameAs_Info.OtherOperandNum, N, NodeInfo, OResNo);
return NodeToApply->UpdateNodeType(OResNo, OtherNode->getExtType(ResNo),TP)|
OtherNode->UpdateNodeType(ResNo,NodeToApply->getExtType(OResNo),TP);
}
@ -616,9 +615,10 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
if (!isInteger(VT))
TP.error(N->getOperator()->getName() + " VT operand must be integer!");
unsigned OResNo = 0; // FIXME: getOperandNum should return pair.
unsigned OResNo = 0;
TreePatternNode *OtherNode =
getOperandNum(x.SDTCisVTSmallerThanOp_Info.OtherOperandNum, N,NumResults);
getOperandNum(x.SDTCisVTSmallerThanOp_Info.OtherOperandNum, N, NodeInfo,
OResNo);
// It must be integer.
bool MadeChange = OtherNode->getExtType(OResNo).EnforceInteger(TP);
@ -630,16 +630,18 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
return MadeChange;
}
case SDTCisOpSmallerThanOp: {
unsigned BResNo = 0; // FIXME: getOperandNum should return pair.
unsigned BResNo = 0;
TreePatternNode *BigOperand =
getOperandNum(x.SDTCisOpSmallerThanOp_Info.BigOperandNum, N, NumResults);
getOperandNum(x.SDTCisOpSmallerThanOp_Info.BigOperandNum, N, NodeInfo,
BResNo);
return NodeToApply->getExtType(ResNo).
EnforceSmallerThan(BigOperand->getExtType(BResNo), TP);
}
case SDTCisEltOfVec: {
unsigned VResNo = 0; // FIXME: getOperandNum should return pair.
unsigned VResNo = 0;
TreePatternNode *VecOperand =
getOperandNum(x.SDTCisEltOfVec_Info.OtherOperandNum, N, NumResults);
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!");

5
utils/TableGen/CodeGenDAGPatterns.h
View File

@ -182,11 +182,6 @@ struct SDTypeConstraint {
/// exception.
bool ApplyTypeConstraint(TreePatternNode *N, const SDNodeInfo &NodeInfo,
TreePattern &TP) const;
/// getOperandNum - Return the node corresponding to operand #OpNo in tree
/// N, which has NumResults results.
TreePatternNode *getOperandNum(unsigned OpNo, TreePatternNode *N,
unsigned NumResults) const;
};
/// SDNodeInfo - One of these records is created for each SDNode instance in