SelectionDAG.h revision cbea3045ce0bdd061c494a831d0ce2d5834211cc
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" 19a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner#include "llvm/CodeGen/SelectionDAGCSEMap.h" 20b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner#include "llvm/ADT/ilist" 21b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 22109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner#include <list> 23322812e603705e1c2037313633e72f689524b163Evan Cheng#include <map> 24322812e603705e1c2037313633e72f689524b163Evan Cheng#include <set> 25eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner#include <string> 26d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 27d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 28c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetLowering; 29c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetMachine; 30b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey class MachineDebugInfo; 31c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class MachineFunction; 32c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 33c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 34c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 35c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 36c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 37c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 38c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 39c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 40c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 41c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 42c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 43cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 44cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 45063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 46c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &MF; 47b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DI; 48cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 49c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Root - The root of the entire DAG. EntryNode - The starting token. 50c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Root, EntryNode; 51cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 52b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner // AllNodes - A linked list of nodes in the current DAG. 53b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner ilist<SDNode> AllNodes; 54691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 55cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 56b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey SelectionDAG(TargetLowering &tli, MachineFunction &mf, MachineDebugInfo *di) 57b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey : TLI(tli), MF(mf), DI(di) { 58c3aae25116e66c177579b0b79182b09340b19753Chris Lattner EntryNode = Root = getNode(ISD::EntryToken, MVT::Other); 59c3aae25116e66c177579b0b79182b09340b19753Chris Lattner } 60cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 61cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 62c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &getMachineFunction() const { return MF; } 63063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 64063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 65b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *getMachineDebugInfo() const { return DI; } 66cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 671080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// viewGraph - Pop up a ghostview window with the DAG rendered using 'dot'. 681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 691080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner void viewGraph(); 701080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 711080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 72b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 73b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 74b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 75b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::iterator allnodes_iterator; 76b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 77b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 78b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 79c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 80cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 81c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getRoot() const { return Root; } 82cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 83c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 84c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 85c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getEntryNode() const { return EntryNode; } 86cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 87c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 88cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 89c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &setRoot(SDOperand N) { return Root = N; } 90cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 911d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 921d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// certain types of nodes together, or eliminating superfluous nodes. When 931d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// the AfterLegalize argument is set to 'true', Combine takes care not to 941d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// generate any nodes that will be illegal on the target. 951d4d41411190dd9e62764e56713753d4155764ddNate Begeman void Combine(bool AfterLegalize); 961d4d41411190dd9e62764e56713753d4155764ddNate Begeman 97c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 98c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 99c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 100cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 101c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 102c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 103063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 104c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 105d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 106190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner /// SelectionDAG. 107190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner void RemoveDeadNodes(); 108d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 10947725d059b259f8a0c145478300c9e9caa006b59Chris Lattner SDOperand getString(const std::string &Val); 110cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner SDOperand getConstant(uint64_t Val, MVT::ValueType VT, bool isTarget = false); 111cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT) { 112cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner return getConstant(Val, VT, true); 113cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 114c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantFP(double Val, MVT::ValueType VT); 115ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner SDOperand getTargetConstantFP(double Val, MVT::ValueType VT); 11614229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 117cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner int offset = 0, bool isTargetGA = false); 11861ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 119cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner int offset = 0) { 120cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner return getGlobalAddress(GV, VT, offset, true); 121cbea3045ce0bdd061c494a831d0ce2d5834211ccChris Lattner } 122c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getFrameIndex(int FI, MVT::ValueType VT); 123afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT); 12437efe6764568a3829fee26aba532283131d1a104Nate Begeman SDOperand getJumpTable(int JTI, MVT::ValueType VT); 12537efe6764568a3829fee26aba532283131d1a104Nate Begeman SDOperand getTargetJumpTable(int JTI, MVT::ValueType VT); 126b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng SDOperand getConstantPool(Constant *C, MVT::ValueType VT, 127404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng unsigned Alignment=0, int offset = 0); 128b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT, 129404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng unsigned Alignment=0, int offset = 0); 130c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getBasicBlock(MachineBasicBlock *MBB); 131c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT); 1322a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT); 13315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner SDOperand getValueType(MVT::ValueType); 134d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getRegister(unsigned Reg, MVT::ValueType VT); 135c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 136d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N) { 137d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyToReg, MVT::Other, Chain, 138d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner getRegister(Reg, N.getValueType()), N); 139cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 140cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 141e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 142e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 143e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 144e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N, 145e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 146e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> VTs; 147e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Other); 148e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Flag); 149bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Flag }; 150bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return getNode(ISD::CopyToReg, VTs, Ops, Flag.Val ? 4 : 3); 151e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 15266a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng 15366a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng // Similar to last getCopyToReg() except parameter Reg is a SDOperand 15466a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng SDOperand getCopyToReg(SDOperand Chain, SDOperand Reg, SDOperand N, 15566a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng SDOperand Flag) { 15666a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng std::vector<MVT::ValueType> VTs; 15766a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng VTs.push_back(MVT::Other); 15866a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng VTs.push_back(MVT::Flag); 159bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { Chain, Reg, N, Flag }; 160bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return getNode(ISD::CopyToReg, VTs, Ops, Flag.Val ? 4 : 3); 16166a48bbc3565b40ea0e6f2d58cf5e3a8e64802efEvan Cheng } 162e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 163d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 164d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<MVT::ValueType> ResultTys; 165d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(VT); 166d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(MVT::Other); 167f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDOperand Ops[] = { Chain, getRegister(Reg, VT) }; 168f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops, 2); 16918c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 170e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 171e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 172e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 173e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 174e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT, 175e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 176e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 177e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT); 178e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Other); 179e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Flag); 180f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDOperand Ops[] = { Chain, getRegister(Reg, VT), Flag }; 181f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops, Flag.Val ? 3 : 2); 182e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 18318c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 1847cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getCondCode(ISD::CondCode Cond); 185cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 1861ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 1871ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 1881ccae666f596d5aeca5c9942995763600b622062Chris Lattner SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy); 1896a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner 1906a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have 1916a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner /// a flag result (to ensure it's not CSE'd). 1926a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner SDOperand getCALLSEQ_START(SDOperand Chain, SDOperand Op) { 1936a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner std::vector<MVT::ValueType> ResultTys; 1946a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner ResultTys.push_back(MVT::Other); 1956a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner ResultTys.push_back(MVT::Flag); 196f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDOperand Ops[] = { Chain, Op }; 197f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner return getNode(ISD::CALLSEQ_START, ResultTys, Ops, 2); 1986a5b6d7633c96c72ca7d5f8ba0c855e4690ada04Chris Lattner } 1991ccae666f596d5aeca5c9942995763600b622062Chris Lattner 200c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 201cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 202c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT); 203c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N); 204c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 205c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2); 206c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 207c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2, SDOperand N3); 208c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 2092d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4); 2102d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 211f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4, 212f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N5); 213f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 214f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner const SDOperand *Ops, unsigned NumOps); 215f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys, 216f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner const SDOperand *Ops, unsigned NumOps); 217f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner 2187cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 2197cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// have an ISD::CondCode instead of an SDOperand. 2207cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 2217cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getSetCC(MVT::ValueType VT, SDOperand LHS, SDOperand RHS, 2227cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode Cond) { 2237cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond)); 2247cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 2259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 2279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// just have an ISD::CondCode instead of an SDOperand. 2289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 2299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand getSelectCC(SDOperand LHS, SDOperand RHS, 2309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand True, SDOperand False, ISD::CondCode Cond) { 2319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman MVT::ValueType VT = True.getValueType(); 2329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman return getNode(ISD::SELECT_CC, VT, LHS, RHS, True, False,getCondCode(Cond)); 2339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 2347cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 235acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// getVAArg - VAArg produces a result and token chain, and takes a pointer 236acc398c195a697795bff3245943d104eb19192b9Nate Begeman /// and a source value as input. 237acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand getVAArg(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 238acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand SV); 2397cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 240c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 241c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 242cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 24321074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 24421074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand SV); 2455fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand getVecLoad(unsigned Count, MVT::ValueType VT, SDOperand Chain, 2465fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand Ptr, SDOperand SV); 2475f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand getExtLoad(unsigned Opcode, MVT::ValueType VT, SDOperand Chain, 2485f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand Ptr, SDOperand SV, MVT::ValueType EVT); 2492d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 2502d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth // getSrcValue - construct a node to track a Value* through the backend 251691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SDOperand getSrcValue(const Value* I, int offset = 0); 252cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 253b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// UpdateNodeOperands - *Mutate* the specified node in-place to have the 254b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// specified operands. If the resultant node already exists in the DAG, 255b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// this does not modify the specified node, instead it returns the node that 256b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// already exists. If the resultant node does not exist in the DAG, the 257b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input node is returned. As a degenerate case, if you specify the same 258b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner /// input operands as the node already has, the input node is returned. 259b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op); 260b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2); 261b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 262b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand Op3); 263b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 264b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner SDOperand Op3, SDOperand Op4); 2659b88361befd2a94202dc60ccfb3e31756916a9caChris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, 2669b88361befd2a94202dc60ccfb3e31756916a9caChris Lattner SDOperand Op3, SDOperand Op4, SDOperand Op5); 267f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDOperand UpdateNodeOperands(SDOperand N, SDOperand *Ops, unsigned NumOps); 2681b95095857b78e12138c22e76c7936611c51355bChris Lattner 2691b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 2701b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 2711b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 272eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field. The 0th value 273eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// of the resultant node is returned. 274eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT); 275eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 276eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1); 277eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 278eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2); 279eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 280eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3); 281eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 282eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 283eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4); 284eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 285eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 286eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5); 287eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 288eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 289eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5, SDOperand Op6); 2908c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 2918c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op1, SDOperand Op2, SDOperand Op3, 2928c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, 2938c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op7); 2947cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 2957cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op1, SDOperand Op2, SDOperand Op3, 2967cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, 2977cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op7, SDOperand Op8); 298eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 299eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 300eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 301eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 302eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3); 303eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 304eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 305eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4); 306eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 307eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 308eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4, SDOperand Op5); 309753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 3106ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// getTargetNode - These are used for target selectors to create a new node 3116ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// with specified return type(s), target opcode, and operands. 3126ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// 3136ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// Note that getTargetNode returns the resultant node. If there is already a 3146ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// node of the specified opcode and operands, it returns that node instead of 3156ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng /// the current one. 3166ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT); 3176ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3186ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1); 3196ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3206ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2); 3216ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3226ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3); 3236ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3246ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3256ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4); 3266ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3276ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3286ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5); 3296ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3306ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3316ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6); 3326ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3336ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3346ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6, 3356ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op7); 3366ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 3376ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, SDOperand Op3, 3386ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op4, SDOperand Op5, SDOperand Op6, 3396ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op7, SDOperand Op8); 3406ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT, 341bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner const SDOperand *Ops, unsigned NumOps); 3426ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3436ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1); 3446ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3456ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 3466ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3476ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3486ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3); 3496ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3506ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3516ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4); 3526ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3536ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3546ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5); 3556ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3566ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3576ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3586ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6); 3596ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3606ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 3616ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3626ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6, SDOperand Op7); 3636ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3646ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3656ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2); 3666ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3676ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3686ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, 3696ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5); 3706ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3716ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng MVT::ValueType VT2, MVT::ValueType VT3, 3726ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op1, SDOperand Op2, 3736ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op3, SDOperand Op4, SDOperand Op5, 3746ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6); 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 SDOperand Op3, SDOperand Op4, SDOperand Op5, 3796ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDOperand Op6, SDOperand Op7); 3806ae46c4c8757237bca2b78b589c96c37015bc356Evan Cheng SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 381bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner MVT::ValueType VT2, 382bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner const SDOperand *Ops, unsigned NumOps); 3836542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 3846542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 38526005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 38626005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 38726005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// if you have two nodes with identical results, use the third otherwise. 3886542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 389fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// These methods all take an optional vector, which (if not null) is 390fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// populated with any nodes that are deleted from the SelectionDAG, due to 391fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// new equivalences that are discovered. 392fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 393fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDOperand From, SDOperand Op, 394fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 395fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, SDNode *To, 396fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 3978a842cf8287ee957e15b95ceeb6ee5f189caba3dChris Lattner void ReplaceAllUsesWith(SDNode *From, const SDOperand *To, 398fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 399fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng 40080274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving 40180274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// uses of other values produced by From.Val alone. The Deleted vector is 40280274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// handled the same was as for ReplaceAllUsesWith, but it is required for 40380274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner /// this method. 40480274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner void ReplaceAllUsesOfValueWith(SDOperand From, SDOperand To, 40580274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner std::vector<SDNode*> &Deleted); 40680274268b99e5a066825c8cc5aba58dbc5ad0a52Chris Lattner 407ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// DeleteNode - Remove the specified node from the system. This node must 408ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// have no referrers. 409ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner void DeleteNode(SDNode *N); 410b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng 411e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng /// AssignNodeIds - Assign a unique node id for each node in the DAG based on 412e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng /// their allnodes order. It returns the maximum id. 4137c16d776cb827922dd0f8f0a88c5b65a90810c0bEvan Cheng unsigned AssignNodeIds(); 414b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng 415e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng /// AssignTopologicalOrder - Assign a unique node id for each node in the DAG 41609fd736058ec3f69b856ae3ad65177bc31904a8cEvan Cheng /// based on their topological order. It returns the maximum id and a vector 41709fd736058ec3f69b856ae3ad65177bc31904a8cEvan Cheng /// of the SDNodes* in assigned order by reference. 41809fd736058ec3f69b856ae3ad65177bc31904a8cEvan Cheng unsigned AssignTopologicalOrder(std::vector<SDNode*> &TopOrder); 419e6f35d8a5cc92d776cf460200e2b815e8c301b14Evan Cheng 420cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 421d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 422fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// InsertISelMapEntry - A helper function to insert a key / element pair 423fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// into a SDOperand to SDOperand map. This is added to avoid the map 424fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng /// insertion operator from being inlined. 425fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng static void InsertISelMapEntry(std::map<SDOperand, SDOperand> &Map, 426fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng SDNode *Key, unsigned KeyResNo, 427fae9f1cb34d6d2c4dbd007f2d748a70b67776a82Evan Cheng SDNode *Element, unsigned ElementResNo); 428322812e603705e1c2037313633e72f689524b163Evan Cheng 429d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 4301b95095857b78e12138c22e76c7936611c51355bChris Lattner void RemoveNodeFromCSEMaps(SDNode *N); 4316542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); 432a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op, void *&InsertPos); 433a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2, 434a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 435f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SDNode *FindModifiedNodeSlot(SDNode *N, const SDOperand *Ops, unsigned NumOps, 436a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner void *&InsertPos); 437b9aff659e82e4ec1a507e6e7fe7969379a431613Chris Lattner 438fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 439a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1); 440a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1, MVT::ValueType VT2); 441a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner MVT::ValueType *getNodeValueTypes(std::vector<MVT::ValueType> &RetVals); 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. 4537cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 4541cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 455b29cb29364d3e22f062c695d2d5740dda42d8e8eChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs; 456ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstantFPs; 45737efe6764568a3829fee26aba532283131d1a104Nate Begeman std::map<int, SDNode*> FrameIndices, TargetFrameIndices, JumpTableIndices, 45837efe6764568a3829fee26aba532283131d1a104Nate Begeman TargetJumpTableIndices; 459404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng std::map<std::pair<Constant *, 460404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng std::pair<int, unsigned> >, SDNode*> ConstantPoolIndices; 461404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng std::map<std::pair<Constant *, 462404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng std::pair<int, unsigned> >, SDNode*> TargetConstantPoolIndices; 46315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 4645f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner std::map<std::string, SDNode*> ExternalSymbols; 4652a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth std::map<std::string, SDNode*> TargetExternalSymbols; 46647725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::map<std::string, StringSDNode*> StringNodes; 467a5682853b9921bbb0dd2ee175c9bd44142d4819eChris Lattner SelectionDAGCSEMap CSEMap; 468cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 469cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 4701080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 4711080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 4721080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 4731080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 4741080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4751080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 4761080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 4771080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4781080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 4791080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 480b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 481cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 482cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 483