SelectionDAG.h revision b80e2be8894db9f843f32ebaffb9b7fd6b57d206
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" 19b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner#include "llvm/ADT/ilist" 20b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 21cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#include <map> 22109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner#include <list> 23c3aae25116e66c177579b0b79182b09340b19753Chris Lattner#include <string> // FIXME remove eventually, turning map into const char* map. 24d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 26c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetLowering; 27c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetMachine; 28c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class MachineFunction; 29c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 30c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 31c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 32c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 33c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 34c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 35c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 36c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 37c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 38c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 39c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 40cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 41cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 42063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 43c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &MF; 44cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 45c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Root - The root of the entire DAG. EntryNode - The starting token. 46c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Root, EntryNode; 47cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 48b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner // AllNodes - A linked list of nodes in the current DAG. 49b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner ilist<SDNode> AllNodes; 50691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 51691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // ValueNodes - track SrcValue nodes 52691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth std::map<std::pair<const Value*, int>, SDNode*> ValueNodes; 53691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 54cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 55063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner SelectionDAG(TargetLowering &tli, MachineFunction &mf) : TLI(tli), MF(mf) { 56c3aae25116e66c177579b0b79182b09340b19753Chris Lattner EntryNode = Root = getNode(ISD::EntryToken, MVT::Other); 57c3aae25116e66c177579b0b79182b09340b19753Chris Lattner } 58cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 59cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 60c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &getMachineFunction() const { return MF; } 61063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 62063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 63cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 641080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// viewGraph - Pop up a ghostview window with the DAG rendered using 'dot'. 651080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 661080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner void viewGraph(); 671080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 69b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 70b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 71b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 72b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::iterator allnodes_iterator; 73b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 74b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 75b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 76c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 77cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 78c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getRoot() const { return Root; } 79cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 80c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 81c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 82c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getEntryNode() const { return EntryNode; } 83cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 84c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 85cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 86c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &setRoot(SDOperand N) { return Root = N; } 87cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 881d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 891d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// certain types of nodes together, or eliminating superfluous nodes. When 901d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// the AfterLegalize argument is set to 'true', Combine takes care not to 911d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// generate any nodes that will be illegal on the target. 921d4d41411190dd9e62764e56713753d4155764ddNate Begeman void Combine(bool AfterLegalize); 931d4d41411190dd9e62764e56713753d4155764ddNate Begeman 94c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 95c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 96c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 97cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 98c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 99c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 100063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 101c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 102d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 103d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// SelectionDAG, including nodes (like loads) that have uses of their token 104d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// chain but no other uses and no side effect. If a node is passed in as an 105d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// argument, it is used as the seed for node deletion. 106d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void RemoveDeadNodes(SDNode *N = 0); 107d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 108c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstant(uint64_t Val, MVT::ValueType VT); 109056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT); 110c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantFP(double Val, MVT::ValueType VT); 111c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT); 112f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT); 113c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getFrameIndex(int FI, MVT::ValueType VT); 114afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT); 1155839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner SDOperand getConstantPool(Constant *C, MVT::ValueType VT); 1165839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT); 117c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getBasicBlock(MachineBasicBlock *MBB); 118c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT); 1192a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT); 12015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner SDOperand getValueType(MVT::ValueType); 121d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getRegister(unsigned Reg, MVT::ValueType VT); 122c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 123d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N) { 124d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyToReg, MVT::Other, Chain, 125d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner getRegister(Reg, N.getValueType()), N); 126cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 127cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 128e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 129e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 130e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 131e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N, 132e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 133e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> VTs; 134e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Other); 135e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Flag); 136e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 137e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 138e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, N.getValueType())); 139e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(N); 140e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 141e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyToReg, VTs, Ops); 142e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 143e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 144d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 145d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<MVT::ValueType> ResultTys; 146d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(VT); 147d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(MVT::Other); 148d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<SDOperand> Ops; 149d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(Chain); 150d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(getRegister(Reg, VT)); 151d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 15218c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 153e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 154e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 155e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 156e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 157e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT, 158e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 159e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 160e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT); 161e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Other); 162e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Flag); 163e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 164e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 165e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, VT)); 166e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 167e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 168e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 16918c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 170d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getImplicitDef(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 171d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::ImplicitDef, MVT::Other, Chain, getRegister(Reg, VT)); 172cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 173cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 174c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getCall - Note that this destroys the vector of RetVals passed in. 175c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// 176c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 1774c1eae9fb329e0e371d453957c56426294de24e9Chris Lattner SDOperand Callee, bool isTailCall = false) { 1784211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, Chain, 1794211e73c4905af413db7524f24414c16a7f69102Chris Lattner Callee); 180109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner setNodeValueTypes(NN, RetVals); 181c3aae25116e66c177579b0b79182b09340b19753Chris Lattner AllNodes.push_back(NN); 182c3aae25116e66c177579b0b79182b09340b19753Chris Lattner return NN; 183cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 184cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 18502b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// getCall - This is identical to the one above, and should be used for calls 18602b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// where arguments are passed in physical registers. This destroys the 18702b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// RetVals and ArgsInRegs vectors. 18802b86f52ed19213ef4911da902145155c03fb136Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 1894211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDOperand Callee, std::vector<SDOperand> &ArgsInRegs, 1904211e73c4905af413db7524f24414c16a7f69102Chris Lattner bool isTailCall = false) { 19102b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Callee); 19202b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Chain); 1934c1eae9fb329e0e371d453957c56426294de24e9Chris Lattner SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, ArgsInRegs); 194109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner setNodeValueTypes(NN, RetVals); 19502b86f52ed19213ef4911da902145155c03fb136Chris Lattner AllNodes.push_back(NN); 19602b86f52ed19213ef4911da902145155c03fb136Chris Lattner return NN; 19702b86f52ed19213ef4911da902145155c03fb136Chris Lattner } 19802b86f52ed19213ef4911da902145155c03fb136Chris Lattner 1997cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getCondCode(ISD::CondCode Cond); 200cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2011ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 2021ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 2031ccae666f596d5aeca5c9942995763600b622062Chris Lattner SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy); 2041ccae666f596d5aeca5c9942995763600b622062Chris Lattner 205c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 206cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 207c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT); 208c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N); 209c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 210c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2); 211c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 212c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2, SDOperand N3); 213c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 2142d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4); 2152d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 216f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4, 217f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N5); 218f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 219c3aae25116e66c177579b0b79182b09340b19753Chris Lattner std::vector<SDOperand> &Children); 2204211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys, 2214211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> &Ops); 222c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 2237cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 2247cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// have an ISD::CondCode instead of an SDOperand. 2257cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 2267cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getSetCC(MVT::ValueType VT, SDOperand LHS, SDOperand RHS, 2277cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode Cond) { 2287cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond)); 2297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 2309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 2329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// just have an ISD::CondCode instead of an SDOperand. 2339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 2349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand getSelectCC(SDOperand LHS, SDOperand RHS, 2359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand True, SDOperand False, ISD::CondCode Cond) { 2369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman MVT::ValueType VT = True.getValueType(); 2379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman return getNode(ISD::SELECT_CC, VT, LHS, RHS, True, False,getCondCode(Cond)); 2389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 2397cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 2407cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// getBR2Way_CC - Helper function to make it easier to build BRTWOWAY_CC 2417cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// nodes. 2427cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// 2437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman SDOperand getBR2Way_CC(SDOperand Chain, SDOperand CCNode, SDOperand LHS, 2447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman SDOperand RHS, SDOperand True, SDOperand False) { 2457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman std::vector<SDOperand> Ops; 2467cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(Chain); 2477cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(CCNode); 2487cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(LHS); 2497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(RHS); 2507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(True); 2517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(False); 2527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman return getNode(ISD::BRTWOWAY_CC, MVT::Other, Ops); 2537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 2547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 255c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 256c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 257cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 25821074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 25921074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand SV); 2605f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand getExtLoad(unsigned Opcode, MVT::ValueType VT, SDOperand Chain, 2615f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand Ptr, SDOperand SV, MVT::ValueType EVT); 2622d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 2632d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth // getSrcValue - construct a node to track a Value* through the backend 264691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SDOperand getSrcValue(const Value* I, int offset = 0); 265cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2661b95095857b78e12138c22e76c7936611c51355bChris Lattner 2671b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 2681b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 2691b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 2701b95095857b78e12138c22e76c7936611c51355bChris Lattner /// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field. 2712bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT); 2722bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 2731b95095857b78e12138c22e76c7936611c51355bChris Lattner SDOperand Op1); 2742bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 2751b95095857b78e12138c22e76c7936611c51355bChris Lattner SDOperand Op1, SDOperand Op2); 2762bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 2771b95095857b78e12138c22e76c7936611c51355bChris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3); 2782bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 279294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman SDOperand Op1, SDOperand Op2, SDOperand Op3, SDOperand Op4); 2802bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 281d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, SDOperand Op4, 282d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner SDOperand Op5); 2832bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 2842bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 2852bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner void SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 2862bb06cdf27905cf95bd39e4120f1ad57c68ac73eChris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 2874fbde4d871d3c826b4dbe5fab1f5bacbffeb3937Chris Lattner SDOperand Op3); 288753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 289753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT) { 290753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT); 291753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner } 292056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 293056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1) { 294056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1); 295056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 296056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 297056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1, SDOperand Op2) { 298056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2); 299056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 3003cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3013cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2) { 3023cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner std::vector<MVT::ValueType> ResultTys; 3033cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner ResultTys.push_back(VT1); 3043cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner ResultTys.push_back(VT2); 3053cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner std::vector<SDOperand> Ops; 3063cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner Ops.push_back(Op1); 3073cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner Ops.push_back(Op2); 3083cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, ResultTys, Ops); 3093cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner } 310056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 311056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3) { 312056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3); 313056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 3145ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 3155ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op1, SDOperand Op2, SDOperand Op3, 3165ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op4) { 3175ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3, Op4); 3185ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman } 3195ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 3205ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op1, SDOperand Op2, SDOperand Op3, 3215ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op4, SDOperand Op5) { 3225ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3, Op4, Op5); 3235ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman } 324420089c47c58f41c188a5f5f282377771d67462bChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 325420089c47c58f41c188a5f5f282377771d67462bChris Lattner std::vector<SDOperand> &Ops) { 326420089c47c58f41c188a5f5f282377771d67462bChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Ops); 327420089c47c58f41c188a5f5f282377771d67462bChris Lattner } 328e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT1, 329e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner MVT::ValueType VT2, std::vector<SDOperand> &Ops) { 330e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 331e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT1); 332e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT2); 333e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, ResultTys, Ops); 334e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 3356542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 3366542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 33726005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 33826005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 33926005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// if you have two nodes with identical results, use the third otherwise. 3406542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 341fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// These methods all take an optional vector, which (if not null) is 342fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// populated with any nodes that are deleted from the SelectionDAG, due to 343fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// new equivalences that are discovered. 344fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 345fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDOperand From, SDOperand Op, 346fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 347fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, SDNode *To, 348fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 349fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To, 350fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 3516542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 352ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner 353ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// DeleteNode - Remove the specified node from the system. This node must 354ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// have no referrers. 355ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner void DeleteNode(SDNode *N); 356ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner 357cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 358d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 359d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 3601b95095857b78e12138c22e76c7936611c51355bChris Lattner void RemoveNodeFromCSEMaps(SDNode *N); 3616542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); 362f0e80cf909b69b5f31b8d027de6ee4b963205f66Chris Lattner void DestroyDeadNode(SDNode *N); 363fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 364109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, std::vector<MVT::ValueType> &RetVals); 365109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, MVT::ValueType VT1, MVT::ValueType VT2); 366109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 3677cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 36832c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// SimplifySetCC - Try to simplify a setcc built with the specified operands 36932c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// and cc. If unable to simplify it, return a null SDOperand. 3704cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand SimplifySetCC(MVT::ValueType VT, SDOperand N1, 3714cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand N2, ISD::CondCode Cond); 372109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 373109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner // List of non-single value types. 374109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner std::list<std::vector<MVT::ValueType> > VTList; 375109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 3761cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Maps to auto-CSE operations. 377ab2eb66f07689dc1698ace2182e77395254ad83dChris Lattner std::map<std::pair<unsigned, MVT::ValueType>, SDNode *> NullaryOps; 3781cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, MVT::ValueType> >, 3791cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> UnaryOps; 3801cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, SDOperand> >, 3811cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> BinaryOps; 3821cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 383d6a80778e5a5fab339036b2f462d3039efe28a08Chris Lattner std::map<std::pair<unsigned, MVT::ValueType>, RegisterSDNode*> RegNodes; 3847cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 3851cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 3861cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<SDOperand, std::pair<SDOperand, MVT::ValueType> >, 3871cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> Loads; 3881cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 3891cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<const GlobalValue*, SDNode*> GlobalValues; 390f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner std::map<const GlobalValue*, SDNode*> TargetGlobalValues; 3911cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> Constants; 392056f9f61d071c6c583951678f2bf543a1316efccChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstants; 393b29cb29364d3e22f062c695d2d5740dda42d8e8eChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs; 394afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner std::map<int, SDNode*> FrameIndices, TargetFrameIndices; 3955839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner std::map<Constant *, SDNode*> ConstantPoolIndices; 3965839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner std::map<Constant *, SDNode*> TargetConstantPoolIndices; 3971cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<MachineBasicBlock *, SDNode*> BBNodes; 39815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 3995f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner std::map<std::string, SDNode*> ExternalSymbols; 4002a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth std::map<std::string, SDNode*> TargetExternalSymbols; 4014211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::map<std::pair<unsigned, 4026765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::pair<MVT::ValueType, std::vector<SDOperand> > >, 4036765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner SDNode*> OneResultNodes; 4046765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::map<std::pair<unsigned, 4054211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::pair<std::vector<MVT::ValueType>, 4064211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> > >, 4074211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDNode*> ArbitraryNodes; 408cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 409cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 4101080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 4111080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 4121080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 4131080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 4141080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4151080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 4161080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 4171080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4181080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 4191080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 420b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 421cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 422cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 423