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implement some methods.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-12-08 22:40:18 +00:00
parent 13c6a1740c
commit e4af7b5a57
2 changed files with 29 additions and 2 deletions
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27
lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
View File

@ -320,8 +320,7 @@ void DAGTypeLegalizer::GetExpandedOp(SDOperand Op, SDOperand &Lo,
Hi = Entry.second;
}
void DAGTypeLegalizer::SetExpandedOp(SDOperand Op, SDOperand Lo,
SDOperand Hi) {
void DAGTypeLegalizer::SetExpandedOp(SDOperand Op, SDOperand Lo, SDOperand Hi) {
// Remember that this is the result of the node.
std::pair<SDOperand, SDOperand> &Entry = ExpandedNodes[Op];
assert(Entry.first.Val == 0 && "Node already expanded");
@ -335,6 +334,30 @@ void DAGTypeLegalizer::SetExpandedOp(SDOperand Op, SDOperand Lo,
MarkNewNodes(Hi.Val);
}
void DAGTypeLegalizer::GetSplitOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi) {
std::pair<SDOperand, SDOperand> &Entry = SplitNodes[Op];
RemapNode(Entry.first);
RemapNode(Entry.second);
assert(Entry.first.Val && "Operand isn't split");
Lo = Entry.first;
Hi = Entry.second;
}
void DAGTypeLegalizer::SetSplitOp(SDOperand Op, SDOperand Lo, SDOperand Hi) {
// Remember that this is the result of the node.
std::pair<SDOperand, SDOperand> &Entry = SplitNodes[Op];
assert(Entry.first.Val == 0 && "Node already split");
Entry.first = Lo;
Entry.second = Hi;
// Lo/Hi may have been newly allocated, if so, add nodeid's as relevant.
if (Lo.Val->getNodeId() == NewNode)
MarkNewNodes(Lo.Val);
if (Hi.Val->getNodeId() == NewNode)
MarkNewNodes(Hi.Val);
}
SDOperand DAGTypeLegalizer::CreateStackStoreLoad(SDOperand Op,
MVT::ValueType DestVT) {
// Create the stack frame object.

4
lib/CodeGen/SelectionDAG/LegalizeTypes.h
View File

@ -97,6 +97,10 @@ class VISIBILITY_HIDDEN DAGTypeLegalizer {
/// ScalarizedNodes - For nodes that are <1 x ty>, this map indicates the
/// scalar value of type 'ty' to use.
DenseMap<SDOperand, SDOperand> ScalarizedNodes;
/// SplitNodes - For nodes that need to be split this map indicates
/// which operands are the expanded version of the input.
DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes;
/// ReplacedNodes - For nodes that have been replaced with another,
/// indicates the replacement node to use.