SelectionDAG.h revision 80274268b99e5a066825c8cc5aba58dbc5ad0a52
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> 23eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner#include <string> 24d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 26c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetLowering; 27c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetMachine; 28b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey class MachineDebugInfo; 29c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class MachineFunction; 30c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 31c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 32c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 33c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 34c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 35c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 36c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 37c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 38c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 39c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 40c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 41cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 42cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 43063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 44c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &MF; 45b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DI; 46cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 47c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Root - The root of the entire DAG. EntryNode - The starting token. 48c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Root, EntryNode; 49cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 50b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner // AllNodes - A linked list of nodes in the current DAG. 51b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner ilist<SDNode> AllNodes; 52691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 53691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // ValueNodes - track SrcValue nodes 54691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth std::map<std::pair<const Value*, int>, SDNode*> ValueNodes; 55691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 56cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 57b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey SelectionDAG(TargetLowering &tli, MachineFunction &mf, MachineDebugInfo *di) 58b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey : TLI(tli), MF(mf), DI(di) { 59c3aae25116e66c177579b0b79182b09340b19753Chris Lattner EntryNode = Root = getNode(ISD::EntryToken, MVT::Other); 60c3aae25116e66c177579b0b79182b09340b19753Chris Lattner } 61cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 62cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 63c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &getMachineFunction() const { return MF; } 64063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 65063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 66b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *getMachineDebugInfo() const { return DI; } 67cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// viewGraph - Pop up a ghostview window with the DAG rendered using 'dot'. 691080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 701080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner void viewGraph(); 711080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 721080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 73b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 74b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 75b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 76b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::iterator allnodes_iterator; 77b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 78b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 79b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 80c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 81cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 82c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getRoot() const { return Root; } 83cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 84c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 85c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 86c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getEntryNode() const { return EntryNode; } 87cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 88c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 89cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 90c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &setRoot(SDOperand N) { return Root = N; } 91cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 921d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 931d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// certain types of nodes together, or eliminating superfluous nodes. When 941d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// the AfterLegalize argument is set to 'true', Combine takes care not to 951d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// generate any nodes that will be illegal on the target. 961d4d41411190dd9e62764e56713753d4155764ddNate Begeman void Combine(bool AfterLegalize); 971d4d41411190dd9e62764e56713753d4155764ddNate Begeman 98c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 99c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 100c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 101cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 102c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 103c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 104063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 105c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 106d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 107d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// SelectionDAG, including nodes (like loads) that have uses of their token 108d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// chain but no other uses and no side effect. If a node is passed in as an 109d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// argument, it is used as the seed for node deletion. 110d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void RemoveDeadNodes(SDNode *N = 0); 111d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 11247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner SDOperand getString(const std::string &Val); 113c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstant(uint64_t Val, MVT::ValueType VT); 114056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT); 115c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantFP(double Val, MVT::ValueType VT); 116ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner SDOperand getTargetConstantFP(double Val, MVT::ValueType VT); 11714229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 11814229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng int offset = 0); 11961ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 12014229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng int offset = 0); 121c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getFrameIndex(int FI, MVT::ValueType VT); 122afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT); 123b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng SDOperand getConstantPool(Constant *C, MVT::ValueType VT, 124b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned Alignment=0); 125b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT, 126b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned Alignment=0); 127c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getBasicBlock(MachineBasicBlock *MBB); 128c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT); 1292a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT); 13015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner SDOperand getValueType(MVT::ValueType); 131d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getRegister(unsigned Reg, MVT::ValueType VT); 132c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 133d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N) { 134d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyToReg, MVT::Other, Chain, 135d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner getRegister(Reg, N.getValueType()), N); 136cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 137cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 138e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 139e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 140e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 141e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N, 142e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 143e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> VTs; 144e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Other); 145e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Flag); 146e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 147e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 148e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, N.getValueType())); 149e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(N); 150e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 151e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyToReg, VTs, Ops); 152e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 15366a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng 15466a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng // Similar to last getCopyToReg() except parameter Reg is a SDOperand 15566a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng SDOperand getCopyToReg(SDOperand Chain, SDOperand Reg, SDOperand N, 15666a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng SDOperand Flag) { 15766a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng std::vector<MVT::ValueType> VTs; 15866a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng VTs.push_back(MVT::Other); 15966a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng VTs.push_back(MVT::Flag); 16066a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng std::vector<SDOperand> Ops; 16166a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng Ops.push_back(Chain); 16266a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng Ops.push_back(Reg); 16366a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng Ops.push_back(N); 16466a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng if (Flag.Val) Ops.push_back(Flag); 16566a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng return getNode(ISD::CopyToReg, VTs, Ops); 16666a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng } 167e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 168d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 169d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<MVT::ValueType> ResultTys; 170d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(VT); 171d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(MVT::Other); 172d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<SDOperand> Ops; 173d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(Chain); 174d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(getRegister(Reg, VT)); 175d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 17618c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 177e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 178e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 179e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 180e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 181e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT, 182e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 183e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 184e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT); 185e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Other); 186e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Flag); 187e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 188e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 189e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, VT)); 190e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 191e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 192e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 19318c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 1947cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getCondCode(ISD::CondCode Cond); 195cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1961ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 1971ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 1981ccae666f596d5aeca5c9942995763600b622062Chris Lattner SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy); 1996a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner 2006a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have 2016a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// a flag result (to ensure it's not CSE'd). 2026a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner SDOperand getCALLSEQ_START(SDOperand Chain, SDOperand Op) { 2036a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner std::vector<MVT::ValueType> ResultTys; 2046a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner ResultTys.push_back(MVT::Other); 2056a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner ResultTys.push_back(MVT::Flag); 2066a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner std::vector<SDOperand> Ops; 2076a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner Ops.push_back(Chain); 2086a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner Ops.push_back(Op); 2096a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner return getNode(ISD::CALLSEQ_START, ResultTys, Ops); 2106a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner } 2111ccae666f596d5aeca5c9942995763600b622062Chris Lattner 212c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 213cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 214c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT); 215c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N); 216c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 217c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2); 218c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 219c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2, SDOperand N3); 220c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 2212d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4); 2222d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 223f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4, 224f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N5); 225f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 226c3aae25116e66c177579b0b79182b09340b19753Chris Lattner std::vector<SDOperand> &Children); 2274211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys, 2284211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> &Ops); 229c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 2307cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 2317cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// have an ISD::CondCode instead of an SDOperand. 2327cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 2337cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getSetCC(MVT::ValueType VT, SDOperand LHS, SDOperand RHS, 2347cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode Cond) { 2357cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond)); 2367cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 2379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 2399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// just have an ISD::CondCode instead of an SDOperand. 2409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 2419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand getSelectCC(SDOperand LHS, SDOperand RHS, 2429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand True, SDOperand False, ISD::CondCode Cond) { 2439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman MVT::ValueType VT = True.getValueType(); 2449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman return getNode(ISD::SELECT_CC, VT, LHS, RHS, True, False,getCondCode(Cond)); 2459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 2467cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 247acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// getVAArg - VAArg produces a result and token chain, and takes a pointer 248acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// and a source value as input. 249acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand getVAArg(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 250acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand SV); 2517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 252c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 253c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 254cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 25521074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 25621074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand SV); 2575fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand getVecLoad(unsigned Count, MVT::ValueType VT, SDOperand Chain, 2585fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand Ptr, SDOperand SV); 2595f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand getExtLoad(unsigned Opcode, MVT::ValueType VT, SDOperand Chain, 2605f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand Ptr, SDOperand SV, MVT::ValueType EVT); 2612d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 2622d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth // getSrcValue - construct a node to track a Value* through the backend 263691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SDOperand getSrcValue(const Value* I, int offset = 0); 264cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 265b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// UpdateNodeOperands - *Mutate* the specified node in-place to have the 266b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// specified operands. If the resultant node already exists in the DAG, 267b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// this does not modify the specified node, instead it returns the node that 268b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// already exists. If the resultant node does not exist in the DAG, the 269b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input node is returned. As a degenerate case, if you specify the same 270b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input operands as the node already has, the input node is returned. 271b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op); 272b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2); 273b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 274b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand Op3); 275b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 276b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand Op3, SDOperand Op4); 2779b88361befd2a94202dc60ccfb3e31756916a9caChris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 2789b88361befd2a94202dc60ccfb3e31756916a9caChris Lattner SDOperand Op3, SDOperand Op4, SDOperand Op5); 279b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, const std::vector<SDOperand> &Op); 2801b95095857b78e12138c22e76c7936611c51355bChris Lattner 2811b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 2821b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 2831b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 284eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field. The 0th value 285eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// of the resultant node is returned. 286eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT); 287eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 288eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1); 289eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 290eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2); 291eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 292eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3); 293eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 294eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 295eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4); 296eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 297eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 298eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5); 299eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 300eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 301eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5, SDOperand Op6); 3028c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 3038c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op1, SDOperand Op2, SDOperand Op3, 3048c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, 3058c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op7); 3067cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 3077cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op1, SDOperand Op2, SDOperand Op3, 3087cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, 3097cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op7, SDOperand Op8); 310eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 311eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 312eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 313eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 314eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3); 315eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 316eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 317eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4); 318eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 319eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 320eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4, SDOperand Op5); 321753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 3226ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// getTargetNode - These are used for target selectors to create a new node 3236ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// with specified return type(s), target opcode, and operands. 3246ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// 3256ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// Note that getTargetNode returns the resultant node. If there is already a 3266ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// node of the specified opcode and operands, it returns that node instead of 3276ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// the current one. 3286ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT); 3296ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3306ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1); 3316ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3326ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2); 3336ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3346ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3); 3356ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3366ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3376ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4); 3386ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3396ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3406ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5); 3416ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3426ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3436ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6); 3446ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3456ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3466ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6, 3476ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op7); 3486ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3496ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3506ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6, 3516ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op7, SDOperand Op8); 3526ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3536ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng std::vector<SDOperand> &Ops); 3546ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3556ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1); 3566ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3576ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 3586ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3596ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3606ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3); 3616ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3626ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3636ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4); 3646ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3656ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3666ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5); 3676ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3686ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3696ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3706ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6); 3716ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3726ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3736ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3746ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6, SDOperand Op7); 3756ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3766ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3776ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2); 3786ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3796ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3806ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, 3816ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5); 3826ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3836ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3846ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, 3856ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3866ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6); 3876ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3886ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3896ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, 3906ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3916ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6, SDOperand Op7); 3926ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3936ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, std::vector<SDOperand> &Ops); 3946542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 3956542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 39626005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 39726005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 39826005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// if you have two nodes with identical results, use the third otherwise. 3996542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 400fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// These methods all take an optional vector, which (if not null) is 401fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// populated with any nodes that are deleted from the SelectionDAG, due to 402fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// new equivalences that are discovered. 403fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 404fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDOperand From, SDOperand Op, 405fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 406fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, SDNode *To, 407fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 408fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To, 409fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 410fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng 41180274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving 41280274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// uses of other values produced by From.Val alone. The Deleted vector is 41380274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// handled the same was as for ReplaceAllUsesWith, but it is required for 41480274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// this method. 41580274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner void ReplaceAllUsesOfValueWith(SDOperand From, SDOperand To, 41680274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner std::vector<SDNode*> &Deleted); 41780274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner 418ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// DeleteNode - Remove the specified node from the system. This node must 419ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// have no referrers. 420ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner void DeleteNode(SDNode *N); 421ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner 422cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 423d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 424fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// InsertISelMapEntry - A helper function to insert a key / element pair 425fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// into a SDOperand to SDOperand map. This is added to avoid the map 426fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// insertion operator from being inlined. 427fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng static void InsertISelMapEntry(std::map<SDOperand, SDOperand> &Map, 428fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng SDNode *Key, unsigned KeyResNo, 429fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng SDNode *Element, unsigned ElementResNo); 430fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng 431d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 4321b95095857b78e12138c22e76c7936611c51355bChris Lattner void RemoveNodeFromCSEMaps(SDNode *N); 4336542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); 434b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op); 435b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2); 436b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDNode **FindModifiedNodeSlot(SDNode *N, const std::vector<SDOperand> &Ops); 437b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner 438f0e80cf909b69b5f31b8d027de6ee4b963205f66Chris Lattner void DestroyDeadNode(SDNode *N); 439fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 440109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, std::vector<MVT::ValueType> &RetVals); 441109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, MVT::ValueType VT1, MVT::ValueType VT2); 442109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 4437cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 44432c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// SimplifySetCC - Try to simplify a setcc built with the specified operands 44532c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// and cc. If unable to simplify it, return a null SDOperand. 4464cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand SimplifySetCC(MVT::ValueType VT, SDOperand N1, 4474cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand N2, ISD::CondCode Cond); 448109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 449109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner // List of non-single value types. 450109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner std::list<std::vector<MVT::ValueType> > VTList; 451109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 4521cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Maps to auto-CSE operations. 453ab2eb66f07689dc1698ace2182e77395254ad83dChris Lattner std::map<std::pair<unsigned, MVT::ValueType>, SDNode *> NullaryOps; 4541cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, MVT::ValueType> >, 4551cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> UnaryOps; 4561cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, SDOperand> >, 4571cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> BinaryOps; 4581cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 459d6a80778e5a5fab339036b2f462d3039efe28a08Chris Lattner std::map<std::pair<unsigned, MVT::ValueType>, RegisterSDNode*> RegNodes; 4607cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 4611cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 4621cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<SDOperand, std::pair<SDOperand, MVT::ValueType> >, 4631cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> Loads; 4641cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 46514229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng std::map<std::pair<const GlobalValue*, int>, SDNode*> GlobalValues; 46614229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng std::map<std::pair<const GlobalValue*, int>, SDNode*> TargetGlobalValues; 4671cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> Constants; 468056f9f61d071c6c583951678f2bf543a1316efccChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstants; 469b29cb29364d3e22f062c695d2d5740dda42d8e8eChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs; 470ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstantFPs; 471afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner std::map<int, SDNode*> FrameIndices, TargetFrameIndices; 472b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng std::map<std::pair<Constant *, unsigned>, SDNode*> ConstantPoolIndices; 473b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng std::map<std::pair<Constant *, unsigned>, SDNode*> TargetConstantPoolIndices; 4741cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<MachineBasicBlock *, SDNode*> BBNodes; 47515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 4765f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner std::map<std::string, SDNode*> ExternalSymbols; 4772a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth std::map<std::string, SDNode*> TargetExternalSymbols; 47847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::map<std::string, StringSDNode*> StringNodes; 4794211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::map<std::pair<unsigned, 4806765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::pair<MVT::ValueType, std::vector<SDOperand> > >, 4816765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner SDNode*> OneResultNodes; 4826765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::map<std::pair<unsigned, 4834211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::pair<std::vector<MVT::ValueType>, 4844211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> > >, 4854211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDNode*> ArbitraryNodes; 486cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 487cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 4881080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 4891080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 4901080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 4911080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 4921080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4931080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 4941080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 4951080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4961080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 4971080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 498b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 499cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 500cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 501