SelectionDAG.h revision ea61c358720aa6c7a159d51658b34276316aa841
1c3aae25116e66c177579b0b79182b09340b19753Chris Lattner//===-- llvm/CodeGen/SelectionDAG.h - InstSelection DAG ---------*- C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 36fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// The LLVM Compiler Infrastructure 46fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 56fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// This file was developed by the LLVM research group and is distributed under 66fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// the University of Illinois Open Source License. See LICENSE.TXT for details. 7ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 86fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell//===----------------------------------------------------------------------===// 9ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 10c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// This file declares the SelectionDAG class, and transitively defines the 11c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// SDNode class and subclasses. 12ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 13cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner//===----------------------------------------------------------------------===// 14cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 15cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#ifndef LLVM_CODEGEN_SELECTIONDAG_H 16cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#define LLVM_CODEGEN_SELECTIONDAG_H 17cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 18c3aae25116e66c177579b0b79182b09340b19753Chris Lattner#include "llvm/CodeGen/SelectionDAGNodes.h" 19cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#include <map> 20c3aae25116e66c177579b0b79182b09340b19753Chris Lattner#include <string> // FIXME remove eventually, turning map into const char* map. 21d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 22d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 23c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetLowering; 24c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetMachine; 25c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class MachineFunction; 26c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 27c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 28c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 29c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 30c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 31c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 32c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 33c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 34c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 35c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 36c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 37cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 38cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 39063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 40c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &MF; 41cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 42c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Root - The root of the entire DAG. EntryNode - The starting token. 43c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Root, EntryNode; 44cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 45cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner // AllNodes - All of the nodes in the DAG 46c3aae25116e66c177579b0b79182b09340b19753Chris Lattner std::vector<SDNode*> AllNodes; 47cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 48063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner SelectionDAG(TargetLowering &tli, MachineFunction &mf) : TLI(tli), MF(mf) { 49c3aae25116e66c177579b0b79182b09340b19753Chris Lattner EntryNode = Root = getNode(ISD::EntryToken, MVT::Other); 50c3aae25116e66c177579b0b79182b09340b19753Chris Lattner } 51cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 52cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 53c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &getMachineFunction() const { return MF; } 54063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 55063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 56cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 571080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// viewGraph - Pop up a ghostview window with the DAG rendered using 'dot'. 581080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 591080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner void viewGraph(); 601080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 611080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 621080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef std::vector<SDNode*>::const_iterator allnodes_iterator; 631080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner allnodes_iterator allnodes_begin() const { return AllNodes.begin(); } 641080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner allnodes_iterator allnodes_end() const { return AllNodes.end(); } 65ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 66c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 67cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 68c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getRoot() const { return Root; } 69cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 70c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 71c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 72c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getEntryNode() const { return EntryNode; } 73cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 74c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 75cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 76c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &setRoot(SDOperand N) { return Root = N; } 77cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 78c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 79c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 80c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 81cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 82c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 83c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 84063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 85c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 86d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 87d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// SelectionDAG, including nodes (like loads) that have uses of their token 88d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// chain but no other uses and no side effect. If a node is passed in as an 89d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// argument, it is used as the seed for node deletion. 90d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void RemoveDeadNodes(SDNode *N = 0); 91d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 92c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstant(uint64_t Val, MVT::ValueType VT); 93c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantFP(double Val, MVT::ValueType VT); 94c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT); 95c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getFrameIndex(int FI, MVT::ValueType VT); 96c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantPool(unsigned CPIdx, MVT::ValueType VT); 97c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getBasicBlock(MachineBasicBlock *MBB); 98c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT); 99c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 1009ffdfb6bae9a8befd23e002f71f08aa42caee627Chris Lattner SDOperand getCopyToReg(SDOperand Chain, SDOperand N, unsigned Reg) { 101c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Note: these are auto-CSE'd because the caller doesn't make requests that 102c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // could cause duplicates to occur. 10360e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner SDNode *NN = new RegSDNode(ISD::CopyToReg, Chain, N, Reg); 10460e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner NN->setValueTypes(MVT::Other); 105c3aae25116e66c177579b0b79182b09340b19753Chris Lattner AllNodes.push_back(NN); 106c3aae25116e66c177579b0b79182b09340b19753Chris Lattner return SDOperand(NN, 0); 107cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 108cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 10960e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner SDOperand getCopyFromReg(unsigned Reg, MVT::ValueType VT, SDOperand Chain) { 110c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Note: These nodes are auto-CSE'd by the caller of this method. 11160e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner SDNode *NN = new RegSDNode(ISD::CopyFromReg, Chain, Reg); 11260e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner NN->setValueTypes(VT, MVT::Other); 11318c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner AllNodes.push_back(NN); 11418c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner return SDOperand(NN, 0); 11518c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 11618c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 1171cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDOperand getImplicitDef(SDOperand Chain, unsigned Reg) { 11818c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner // Note: These nodes are auto-CSE'd by the caller of this method. 11960e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner SDNode *NN = new RegSDNode(ISD::ImplicitDef, Chain, Reg); 12060e4878f9414227a92fec423d5fc39f0d00a2478Chris Lattner NN->setValueTypes(MVT::Other); 121c3aae25116e66c177579b0b79182b09340b19753Chris Lattner AllNodes.push_back(NN); 122c3aae25116e66c177579b0b79182b09340b19753Chris Lattner return SDOperand(NN, 0); 123cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 124cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 125c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getCall - Note that this destroys the vector of RetVals passed in. 126c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// 127c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 128c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Callee) { 129c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDNode *NN = new SDNode(ISD::CALL, Chain, Callee); 130c3aae25116e66c177579b0b79182b09340b19753Chris Lattner NN->setValueTypes(RetVals); 131c3aae25116e66c177579b0b79182b09340b19753Chris Lattner AllNodes.push_back(NN); 132c3aae25116e66c177579b0b79182b09340b19753Chris Lattner return NN; 133cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 134cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 13502b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// getCall - This is identical to the one above, and should be used for calls 13602b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// where arguments are passed in physical registers. This destroys the 13702b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// RetVals and ArgsInRegs vectors. 13802b86f52ed19213ef4911da902145155c03fb136Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 13902b86f52ed19213ef4911da902145155c03fb136Chris Lattner SDOperand Callee, std::vector<SDOperand> &ArgsInRegs) { 14002b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Callee); 14102b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Chain); 14202b86f52ed19213ef4911da902145155c03fb136Chris Lattner SDNode *NN = new SDNode(ISD::CALL, ArgsInRegs); 14302b86f52ed19213ef4911da902145155c03fb136Chris Lattner NN->setValueTypes(RetVals); 14402b86f52ed19213ef4911da902145155c03fb136Chris Lattner AllNodes.push_back(NN); 14502b86f52ed19213ef4911da902145155c03fb136Chris Lattner return NN; 14602b86f52ed19213ef4911da902145155c03fb136Chris Lattner } 14702b86f52ed19213ef4911da902145155c03fb136Chris Lattner 14802b86f52ed19213ef4911da902145155c03fb136Chris Lattner 14930c0fc23c548f75d4e501c39be4be597089d516fChris Lattner SDOperand getSetCC(ISD::CondCode, MVT::ValueType VT, 15030c0fc23c548f75d4e501c39be4be597089d516fChris Lattner SDOperand LHS, SDOperand RHS); 151cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1521ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 1531ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 1541ccae666f596d5aeca5c9942995763600b622062Chris Lattner SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy); 1551ccae666f596d5aeca5c9942995763600b622062Chris Lattner 156c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 157cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 158c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT); 159c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N); 160c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 161c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2); 162c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 163c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2, SDOperand N3); 164c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 165c3aae25116e66c177579b0b79182b09340b19753Chris Lattner std::vector<SDOperand> &Children); 166c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 1671cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // getNode - These versions take an extra value type for extending and 168859157daee6a4b49e99921832e1dde065167b317Chris Lattner // truncating loads, stores, rounds, extends etc. 1691cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N1, 1701cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDOperand N2, MVT::ValueType EVT); 171859157daee6a4b49e99921832e1dde065167b317Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 172859157daee6a4b49e99921832e1dde065167b317Chris Lattner SDOperand N, MVT::ValueType EVT); 1731cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N1, 1741cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDOperand N2, SDOperand N3, MVT::ValueType EVT); 1751cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 176c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 177c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 178cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 179c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr); 180cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 181c3aae25116e66c177579b0b79182b09340b19753Chris Lattner void replaceAllUsesWith(SDOperand Old, SDOperand New) { 182c3aae25116e66c177579b0b79182b09340b19753Chris Lattner assert(Old != New && "RAUW self!"); 183c3aae25116e66c177579b0b79182b09340b19753Chris Lattner assert(0 && "Unimplemented!"); 184cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 185cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 186cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 187d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 188d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 189d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void DeleteNodeIfDead(SDNode *N, void *NodeSet); 1901cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 1911cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Maps to auto-CSE operations. 1921cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, MVT::ValueType> >, 1931cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> UnaryOps; 1941cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, SDOperand> >, 1951cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> BinaryOps; 1961cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 197c7ba0eb5eb170daeb13ed97b23f1283f13bb33ebChris Lattner std::map<std::pair<std::pair<SDOperand, SDOperand>, 198c7ba0eb5eb170daeb13ed97b23f1283f13bb33ebChris Lattner std::pair<ISD::CondCode, MVT::ValueType> >, 1991cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SetCCSDNode*> SetCCs; 2001cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 2011cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<SDOperand, std::pair<SDOperand, MVT::ValueType> >, 2021cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> Loads; 2031cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 2041cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<const GlobalValue*, SDNode*> GlobalValues; 2051cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> Constants; 206b29cb29364d3e22f062c695d2d5740dda42d8e8eChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs; 2071cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<int, SDNode*> FrameIndices; 2081cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<unsigned, SDNode*> ConstantPoolIndices; 2091cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<MachineBasicBlock *, SDNode*> BBNodes; 2101cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::string, SDNode*> ExternalSymbols; 2111cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner struct EVTStruct { 2121cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner unsigned Opcode; 2131cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner MVT::ValueType VT, EVT; 2141cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::vector<SDOperand> Ops; 2151cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner bool operator<(const EVTStruct &RHS) const { 2161cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (Opcode < RHS.Opcode) return true; 2171cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (Opcode > RHS.Opcode) return false; 2181cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (VT < RHS.VT) return true; 2191cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (VT > RHS.VT) return false; 2201cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (EVT < RHS.EVT) return true; 2211cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner if (EVT > RHS.EVT) return false; 2221cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner return Ops < RHS.Ops; 2231cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner } 2241cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner }; 2251cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<EVTStruct, SDNode*> MVTSDNodes; 226cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 227cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2281080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 2291080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 2301080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 2311080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 2321080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 2331080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 2341080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 2351080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 2361080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 2371080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 238cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner} 239cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 240cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 241