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Change TRUNCSTORE to use a VTSDNode operand instead of being an MVTSTDNode

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-07-10 00:29:18 +00:00
parent f7db8c69a1
commit 9fadb4c1c0
9 changed files with 53 additions and 60 deletions
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77
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@@ -235,7 +235,6 @@ void SelectionDAG::DeleteNodeIfDead(SDNode *N, void *NodeSet) {
cast<SetCCSDNode>(N)->getCondition(),
N->getValueType(0))));
break;
case ISD::TRUNCSTORE:
case ISD::EXTLOAD:
case ISD::SEXTLOAD:
case ISD::ZEXTLOAD: {
@@ -1465,6 +1464,20 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
return getNode(Opcode, VT, Ops);
}
SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
SDOperand N1, SDOperand N2, SDOperand N3,
SDOperand N4, SDOperand N5) {
std::vector<SDOperand> Ops;
Ops.reserve(5);
Ops.push_back(N1);
Ops.push_back(N2);
Ops.push_back(N3);
Ops.push_back(N4);
Ops.push_back(N5);
return getNode(Opcode, VT, Ops);
}
SDOperand SelectionDAG::getSrcValue(const Value *V, int Offset) {
assert((!V || isa<PointerType>(V->getType())) &&
"SrcValue is not a pointer?");
@@ -1496,6 +1509,27 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
else // Unconditional branch to false dest.
return getNode(ISD::BR, MVT::Other, Ops[0], Ops[3]);
break;
case ISD::TRUNCSTORE: {
assert(Ops.size() == 5 && "TRUNCSTORE takes 5 operands!");
MVT::ValueType EVT = cast<VTSDNode>(Ops[4])->getVT();
#if 0 // FIXME: If the target supports EVT natively, convert to a truncate/store
// If this is a truncating store of a constant, convert to the desired type
// and store it instead.
if (isa<Constant>(Ops[0])) {
SDOperand Op = getNode(ISD::TRUNCATE, EVT, N1);
if (isa<Constant>(Op))
N1 = Op;
}
// Also for ConstantFP?
#endif
if (Ops[0].getValueType() == EVT) // Normal store?
return getNode(ISD::STORE, VT, Ops[0], Ops[1], Ops[2], Ops[3]);
assert(Ops[1].getValueType() > EVT && "Not a truncation?");
assert(MVT::isInteger(Ops[1].getValueType()) == MVT::isInteger(EVT) &&
"Can't do FP-INT conversion!");
break;
}
}
// Memoize nodes.
@@ -1596,47 +1630,6 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,SDOperand N1,
return SDOperand(N, 0);
}
SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,SDOperand N1,
SDOperand N2, SDOperand N3, SDOperand N4,
MVT::ValueType EVT) {
switch (Opcode) {
default: assert(0 && "Bad opcode for this accessor!");
case ISD::TRUNCSTORE:
#if 0 // FIXME: If the target supports EVT natively, convert to a truncate/store
// If this is a truncating store of a constant, convert to the desired type
// and store it instead.
if (isa<Constant>(N1)) {
SDOperand Op = getNode(ISD::TRUNCATE, EVT, N1);
if (isa<Constant>(Op))
N1 = Op;
}
// Also for ConstantFP?
#endif
if (N1.getValueType() == EVT) // Normal store?
return getNode(ISD::STORE, VT, N1, N2, N3, N4);
assert(N2.getValueType() > EVT && "Not a truncation?");
assert(MVT::isInteger(N2.getValueType()) == MVT::isInteger(EVT) &&
"Can't do FP-INT conversion!");
break;
}
EVTStruct NN;
NN.Opcode = Opcode;
NN.VT = VT;
NN.EVT = EVT;
NN.Ops.push_back(N1);
NN.Ops.push_back(N2);
NN.Ops.push_back(N3);
NN.Ops.push_back(N4);
SDNode *&N = MVTSDNodes[NN];
if (N) return SDOperand(N, 0);
N = new MVTSDNode(Opcode, VT, N1, N2, N3, N4, EVT);
AllNodes.push_back(N);
return SDOperand(N, 0);
}
/// hasNUsesOfValue - Return true if there are exactly NUSES uses of the
/// indicated value. This method ignores uses of other values defined by this
/// operation.