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Change CopyFromReg to take and produce a chain node, allowing it to be used

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with physregs that are not live across the entire block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19560 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-01-14 22:37:20 +00:00
parent 2ee743ff9b
commit 60e4878f94
2 changed files with 12 additions and 17 deletions
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11
include/llvm/CodeGen/SelectionDAG.h
View File

@@ -99,21 +99,24 @@ public:
SDOperand getCopyToReg(SDOperand Chain, SDOperand N, unsigned Reg) { SDOperand getCopyToReg(SDOperand Chain, SDOperand N, unsigned Reg) {
// Note: these are auto-CSE'd because the caller doesn't make requests that // Note: these are auto-CSE'd because the caller doesn't make requests that
// could cause duplicates to occur. // could cause duplicates to occur.
SDNode *NN = new RegSDNode(ISD::CopyToReg, MVT::Other, Chain, N, Reg); SDNode *NN = new RegSDNode(ISD::CopyToReg, Chain, N, Reg);
NN->setValueTypes(MVT::Other);
AllNodes.push_back(NN); AllNodes.push_back(NN);
return SDOperand(NN, 0); return SDOperand(NN, 0);
} }
SDOperand getCopyFromReg(unsigned Reg, MVT::ValueType VT) { SDOperand getCopyFromReg(unsigned Reg, MVT::ValueType VT, SDOperand Chain) {
// Note: These nodes are auto-CSE'd by the caller of this method. // Note: These nodes are auto-CSE'd by the caller of this method.
SDNode *NN = new RegSDNode(ISD::CopyFromReg, VT, Reg); SDNode *NN = new RegSDNode(ISD::CopyFromReg, Chain, Reg);
NN->setValueTypes(VT, MVT::Other);
AllNodes.push_back(NN); AllNodes.push_back(NN);
return SDOperand(NN, 0); return SDOperand(NN, 0);
} }
SDOperand getImplicitDef(SDOperand Chain, unsigned Reg) { SDOperand getImplicitDef(SDOperand Chain, unsigned Reg) {
// Note: These nodes are auto-CSE'd by the caller of this method. // Note: These nodes are auto-CSE'd by the caller of this method.
SDNode *NN = new RegSDNode(ISD::ImplicitDef, MVT::Other, Chain, Reg); SDNode *NN = new RegSDNode(ISD::ImplicitDef, Chain, Reg);
NN->setValueTypes(MVT::Other);
AllNodes.push_back(NN); AllNodes.push_back(NN);
return SDOperand(NN, 0); return SDOperand(NN, 0);
} }

18
include/llvm/CodeGen/SelectionDAGNodes.h
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@@ -648,19 +648,11 @@ class RegSDNode : public SDNode {
unsigned Reg; unsigned Reg;
protected: protected:
friend class SelectionDAG; friend class SelectionDAG;
RegSDNode(unsigned Opc, MVT::ValueType VT, SDOperand Chain, RegSDNode(unsigned Opc, SDOperand Chain, SDOperand Src, unsigned reg)
SDOperand Src, unsigned reg)
: SDNode(Opc, Chain, Src), Reg(reg) { : SDNode(Opc, Chain, Src), Reg(reg) {
setValueTypes(VT);
}
RegSDNode(unsigned Opc, MVT::ValueType VT, SDOperand Chain,
unsigned reg)
: SDNode(Opc, Chain), Reg(reg) {
setValueTypes(VT);
}
RegSDNode(unsigned Opc, MVT::ValueType VT, unsigned reg)
: SDNode(Opc, VT), Reg(reg) {
} }
RegSDNode(unsigned Opc, SDOperand Chain, unsigned reg)
: SDNode(Opc, Chain), Reg(reg) {}
public: public:
unsigned getReg() const { return Reg; } unsigned getReg() const { return Reg; }
@@ -714,10 +706,10 @@ class MVTSDNode : public SDNode {
MVT::ValueType ExtraValueType; MVT::ValueType ExtraValueType;
protected: protected:
friend class SelectionDAG; friend class SelectionDAG;
MVTSDNode(unsigned Opc, MVT::ValueType VT, MVTSDNode(unsigned Opc, MVT::ValueType VT1, MVT::ValueType VT2,
SDOperand Op0, SDOperand Op1, MVT::ValueType EVT) SDOperand Op0, SDOperand Op1, MVT::ValueType EVT)
: SDNode(Opc, Op0, Op1), ExtraValueType(EVT) { : SDNode(Opc, Op0, Op1), ExtraValueType(EVT) {
setValueTypes(VT); setValueTypes(VT1, VT2);
} }
MVTSDNode(unsigned Opc, MVT::ValueType VT, MVTSDNode(unsigned Opc, MVT::ValueType VT,
SDOperand Op0, SDOperand Op1, SDOperand Op2, MVT::ValueType EVT) SDOperand Op0, SDOperand Op1, SDOperand Op2, MVT::ValueType EVT)