#define LLVM_CODEGEN_SELECTIONDAG_H
#include "llvm/CodeGen/SelectionDAGNodes.h"
+#include "llvm/CodeGen/SelectionDAGCSEMap.h"
#include "llvm/ADT/ilist"
#include <list>
MachineFunction &MF;
MachineDebugInfo *DI;
- // Root - The root of the entire DAG. EntryNode - The starting token.
+ /// Root - The root of the entire DAG. EntryNode - The starting token.
SDOperand Root, EntryNode;
- // AllNodes - A linked list of nodes in the current DAG.
+ /// AllNodes - A linked list of nodes in the current DAG.
ilist<SDNode> AllNodes;
- // ValueNodes - track SrcValue nodes
- std::map<std::pair<const Value*, int>, SDNode*> ValueNodes;
+ /// CSEMap - This structure is used to memoize nodes, automatically performing
+ /// CSE with existing nodes with a duplicate is requested.
+ SelectionDAGCSEMap CSEMap;
public:
SelectionDAG(TargetLowering &tli, MachineFunction &mf, MachineDebugInfo *di)
/// RemoveDeadNodes - This method deletes all unreachable nodes in the
/// SelectionDAG.
void RemoveDeadNodes();
-
+
+ /// getVTList - Return an SDVTList that represents the list of values
+ /// specified.
+ SDVTList getVTList(MVT::ValueType VT);
+ SDVTList getVTList(MVT::ValueType VT1, MVT::ValueType VT2);
+ SDVTList getVTList(MVT::ValueType VT1, MVT::ValueType VT2,MVT::ValueType VT3);
+ SDVTList getVTList(const MVT::ValueType *VTs, unsigned NumVTs);
+
+ /// getNodeValueTypes - These are obsolete, use getVTList instead.
+ const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT) {
+ return getVTList(VT).VTs;
+ }
+ const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1,
+ MVT::ValueType VT2) {
+ return getVTList(VT1, VT2).VTs;
+ }
+ const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1,MVT::ValueType VT2,
+ MVT::ValueType VT3) {
+ return getVTList(VT1, VT2, VT3).VTs;
+ }
+ const MVT::ValueType *getNodeValueTypes(std::vector<MVT::ValueType> &VTList) {
+ return getVTList(&VTList[0], VTList.size()).VTs;
+ }
+
+
+ //===----------------------------------------------------------------------===//
+ // Node creation methods.
+ //
SDOperand getString(const std::string &Val);
- SDOperand getConstant(uint64_t Val, MVT::ValueType VT);
- SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT);
- SDOperand getConstantFP(double Val, MVT::ValueType VT);
- SDOperand getTargetConstantFP(double Val, MVT::ValueType VT);
+ SDOperand getConstant(uint64_t Val, MVT::ValueType VT, bool isTarget = false);
+ SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT) {
+ return getConstant(Val, VT, true);
+ }
+ SDOperand getConstantFP(double Val, MVT::ValueType VT, bool isTarget = false);
+ SDOperand getTargetConstantFP(double Val, MVT::ValueType VT) {
+ return getConstantFP(Val, VT, true);
+ }
SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT,
- int offset = 0);
+ int offset = 0, bool isTargetGA = false);
SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT,
- int offset = 0);
- SDOperand getFrameIndex(int FI, MVT::ValueType VT);
- SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT);
- SDOperand getJumpTable(int JTI, MVT::ValueType VT);
- SDOperand getTargetJumpTable(int JTI, MVT::ValueType VT);
+ int offset = 0) {
+ return getGlobalAddress(GV, VT, offset, true);
+ }
+ SDOperand getFrameIndex(int FI, MVT::ValueType VT, bool isTarget = false);
+ SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT) {
+ return getFrameIndex(FI, VT, true);
+ }
+ SDOperand getJumpTable(int JTI, MVT::ValueType VT, bool isTarget = false);
+ SDOperand getTargetJumpTable(int JTI, MVT::ValueType VT) {
+ return getJumpTable(JTI, VT, true);
+ }
SDOperand getConstantPool(Constant *C, MVT::ValueType VT,
- unsigned Alignment=0, int offset = 0);
+ unsigned Align = 0, int Offs = 0, bool isT=false);
SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT,
- unsigned Alignment=0, int offset = 0);
+ unsigned Align = 0, int Offset = 0) {
+ return getConstantPool(C, VT, Align, Offset, true);
+ }
SDOperand getBasicBlock(MachineBasicBlock *MBB);
SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT);
SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT);
// null) and that there should be a flag result.
SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N,
SDOperand Flag) {
- std::vector<MVT::ValueType> VTs;
- VTs.push_back(MVT::Other);
- VTs.push_back(MVT::Flag);
- std::vector<SDOperand> Ops;
- Ops.push_back(Chain);
- Ops.push_back(getRegister(Reg, N.getValueType()));
- Ops.push_back(N);
- if (Flag.Val) Ops.push_back(Flag);
- return getNode(ISD::CopyToReg, VTs, Ops);
+ const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDOperand Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Flag };
+ return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.Val ? 4 : 3);
}
// Similar to last getCopyToReg() except parameter Reg is a SDOperand
SDOperand getCopyToReg(SDOperand Chain, SDOperand Reg, SDOperand N,
SDOperand Flag) {
- std::vector<MVT::ValueType> VTs;
- VTs.push_back(MVT::Other);
- VTs.push_back(MVT::Flag);
- std::vector<SDOperand> Ops;
- Ops.push_back(Chain);
- Ops.push_back(Reg);
- Ops.push_back(N);
- if (Flag.Val) Ops.push_back(Flag);
- return getNode(ISD::CopyToReg, VTs, Ops);
+ const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDOperand Ops[] = { Chain, Reg, N, Flag };
+ return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.Val ? 4 : 3);
}
SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) {
- std::vector<MVT::ValueType> ResultTys;
- ResultTys.push_back(VT);
- ResultTys.push_back(MVT::Other);
- std::vector<SDOperand> Ops;
- Ops.push_back(Chain);
- Ops.push_back(getRegister(Reg, VT));
- return getNode(ISD::CopyFromReg, ResultTys, Ops);
+ const MVT::ValueType *VTs = getNodeValueTypes(VT, MVT::Other);
+ SDOperand Ops[] = { Chain, getRegister(Reg, VT) };
+ return getNode(ISD::CopyFromReg, VTs, 2, Ops, 2);
}
// This version of the getCopyFromReg method takes an extra operand, which
// null) and that there should be a flag result.
SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT,
SDOperand Flag) {
- std::vector<MVT::ValueType> ResultTys;
- ResultTys.push_back(VT);
- ResultTys.push_back(MVT::Other);
- ResultTys.push_back(MVT::Flag);
- std::vector<SDOperand> Ops;
- Ops.push_back(Chain);
- Ops.push_back(getRegister(Reg, VT));
- if (Flag.Val) Ops.push_back(Flag);
- return getNode(ISD::CopyFromReg, ResultTys, Ops);
+ const MVT::ValueType *VTs = getNodeValueTypes(VT, MVT::Other, MVT::Flag);
+ SDOperand Ops[] = { Chain, getRegister(Reg, VT), Flag };
+ return getNode(ISD::CopyFromReg, VTs, 3, Ops, Flag.Val ? 3 : 2);
}
SDOperand getCondCode(ISD::CondCode Cond);
/// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have
/// a flag result (to ensure it's not CSE'd).
SDOperand getCALLSEQ_START(SDOperand Chain, SDOperand Op) {
- std::vector<MVT::ValueType> ResultTys;
- ResultTys.push_back(MVT::Other);
- ResultTys.push_back(MVT::Flag);
- std::vector<SDOperand> Ops;
- Ops.push_back(Chain);
- Ops.push_back(Op);
- return getNode(ISD::CALLSEQ_START, ResultTys, Ops);
+ const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDOperand Ops[] = { Chain, Op };
+ return getNode(ISD::CALLSEQ_START, VTs, 2, Ops, 2);
}
/// getNode - Gets or creates the specified node.
SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4,
SDOperand N5);
SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- std::vector<SDOperand> &Children);
+ const SDOperand *Ops, unsigned NumOps);
SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys,
- std::vector<SDOperand> &Ops);
-
+ const SDOperand *Ops, unsigned NumOps);
+ SDOperand getNode(unsigned Opcode, const MVT::ValueType *VTs, unsigned NumVTs,
+ const SDOperand *Ops, unsigned NumOps);
+
/// getSetCC - Helper function to make it easier to build SetCC's if you just
/// have an ISD::CondCode instead of an SDOperand.
///
///
SDOperand getSelectCC(SDOperand LHS, SDOperand RHS,
SDOperand True, SDOperand False, ISD::CondCode Cond) {
- MVT::ValueType VT = True.getValueType();
- return getNode(ISD::SELECT_CC, VT, LHS, RHS, True, False,getCondCode(Cond));
+ return getNode(ISD::SELECT_CC, True.getValueType(), LHS, RHS, True, False,
+ getCondCode(Cond));
}
/// getVAArg - VAArg produces a result and token chain, and takes a pointer
SDOperand Op3, SDOperand Op4);
SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
SDOperand Op3, SDOperand Op4, SDOperand Op5);
- SDOperand UpdateNodeOperands(SDOperand N, const std::vector<SDOperand> &Op);
+ SDOperand UpdateNodeOperands(SDOperand N, SDOperand *Ops, unsigned NumOps);
/// SelectNodeTo - These are used for target selectors to *mutate* the
/// specified node to have the specified return type, Target opcode, and
SDOperand Op4, SDOperand Op5, SDOperand Op6,
SDOperand Op7, SDOperand Op8);
SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT,
- std::vector<SDOperand> &Ops);
+ const SDOperand *Ops, unsigned NumOps);
SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
MVT::ValueType VT2, SDOperand Op1);
SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
SDOperand Op3, SDOperand Op4, SDOperand Op5,
SDOperand Op6, SDOperand Op7);
SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, std::vector<SDOperand> &Ops);
+ MVT::ValueType VT2,
+ const SDOperand *Ops, unsigned NumOps);
/// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.
/// This can cause recursive merging of nodes in the DAG. Use the first
std::vector<SDNode*> *Deleted = 0);
void ReplaceAllUsesWith(SDNode *From, SDNode *To,
std::vector<SDNode*> *Deleted = 0);
- void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To,
+ void ReplaceAllUsesWith(SDNode *From, const SDOperand *To,
std::vector<SDNode*> *Deleted = 0);
/// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving
void dump() const;
- /// InsertISelMapEntry - A helper function to insert a key / element pair
- /// into a SDOperand to SDOperand map. This is added to avoid the map
- /// insertion operator from being inlined.
- static void InsertISelMapEntry(std::map<SDOperand, SDOperand> &Map,
- SDNode *Key, unsigned KeyResNo,
- SDNode *Element, unsigned ElementResNo);
-
private:
void RemoveNodeFromCSEMaps(SDNode *N);
SDNode *AddNonLeafNodeToCSEMaps(SDNode *N);
- SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op);
- SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2);
- SDNode **FindModifiedNodeSlot(SDNode *N, const std::vector<SDOperand> &Ops);
+ SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op, void *&InsertPos);
+ SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2,
+ void *&InsertPos);
+ SDNode *FindModifiedNodeSlot(SDNode *N, const SDOperand *Ops, unsigned NumOps,
+ void *&InsertPos);
void DeleteNodeNotInCSEMaps(SDNode *N);
- void setNodeValueTypes(SDNode *N, std::vector<MVT::ValueType> &RetVals);
- void setNodeValueTypes(SDNode *N, MVT::ValueType VT1, MVT::ValueType VT2);
-
/// SimplifySetCC - Try to simplify a setcc built with the specified operands
/// and cc. If unable to simplify it, return a null SDOperand.
std::list<std::vector<MVT::ValueType> > VTList;
// Maps to auto-CSE operations.
- std::map<std::pair<unsigned, MVT::ValueType>, SDNode *> NullaryOps;
- std::map<std::pair<unsigned, std::pair<SDOperand, MVT::ValueType> >,
- SDNode *> UnaryOps;
- std::map<std::pair<unsigned, std::pair<SDOperand, SDOperand> >,
- SDNode *> BinaryOps;
-
- std::map<std::pair<unsigned, MVT::ValueType>, RegisterSDNode*> RegNodes;
std::vector<CondCodeSDNode*> CondCodeNodes;
- std::map<std::pair<SDOperand, std::pair<SDOperand, MVT::ValueType> >,
- SDNode *> Loads;
-
- std::map<std::pair<const GlobalValue*, int>, SDNode*> GlobalValues;
- std::map<std::pair<const GlobalValue*, int>, SDNode*> TargetGlobalValues;
- std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> Constants;
- std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstants;
- std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs;
- std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstantFPs;
- std::map<int, SDNode*> FrameIndices, TargetFrameIndices, JumpTableIndices,
- TargetJumpTableIndices;
- std::map<std::pair<Constant *,
- std::pair<int, unsigned> >, SDNode*> ConstantPoolIndices;
- std::map<std::pair<Constant *,
- std::pair<int, unsigned> >, SDNode*> TargetConstantPoolIndices;
- std::map<MachineBasicBlock *, SDNode*> BBNodes;
std::vector<SDNode*> ValueTypeNodes;
std::map<std::string, SDNode*> ExternalSymbols;
std::map<std::string, SDNode*> TargetExternalSymbols;
std::map<std::string, StringSDNode*> StringNodes;
- std::map<std::pair<unsigned,
- std::pair<MVT::ValueType, std::vector<SDOperand> > >,
- SDNode*> OneResultNodes;
- std::map<std::pair<unsigned,
- std::pair<std::vector<MVT::ValueType>,
- std::vector<SDOperand> > >,
- SDNode*> ArbitraryNodes;
};
template <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> {
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