MachineBasicBlock.h revision 5e61fa95196b85281eec655787e9c73267532bd1
151a8d8528135ba4e3e4cf7cd711a9e47b19078a3Chris Lattner//===-- llvm/CodeGen/MachineBasicBlock.h ------------------------*- C++ -*-===// 2deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve// 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. 76fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 86fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell//===----------------------------------------------------------------------===// 96fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 10e8b5413e5d0c7c0fc5b384e975c4ca87f4c00699Chris Lattner// Collect the sequence of machine instructions for a basic block. 11e8b5413e5d0c7c0fc5b384e975c4ca87f4c00699Chris Lattner// 1251a8d8528135ba4e3e4cf7cd711a9e47b19078a3Chris Lattner//===----------------------------------------------------------------------===// 13deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 14fce1143bcfa73f61845002fa50473d1a01384202Misha Brukman#ifndef LLVM_CODEGEN_MACHINEBASICBLOCK_H 15fce1143bcfa73f61845002fa50473d1a01384202Misha Brukman#define LLVM_CODEGEN_MACHINEBASICBLOCK_H 16deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 17c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos#include "llvm/CodeGen/MachineInstr.h" 1894dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos#include "Support/ilist" 19f13a3f4dd1eaa89ca9a64a1e820b089facca3366Brian Gaeke#include <iosfwd> 20d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 21d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 225e61fa95196b85281eec655787e9c73267532bd1Chris Lattner class MachineFunction; 23d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 2494dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos// ilist_traits 2594dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenostemplate <> 265e61fa95196b85281eec655787e9c73267532bd1Chris Lattnerclass ilist_traits<MachineInstr> { 2794dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos // this is only set by the MachineBasicBlock owning the ilist 2894dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos friend class MachineBasicBlock; 2994dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos MachineBasicBlock* parent; 3094dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 3194dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenospublic: 3294dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos ilist_traits<MachineInstr>() : parent(0) { } 3394dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 3494dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static MachineInstr* getPrev(MachineInstr* N) { return N->prev; } 3594dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static MachineInstr* getNext(MachineInstr* N) { return N->next; } 3694dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 3794dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static const MachineInstr* 3894dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos getPrev(const MachineInstr* N) { return N->prev; } 3994dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 4094dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static const MachineInstr* 4194dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos getNext(const MachineInstr* N) { return N->next; } 4294dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 4394dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static void setPrev(MachineInstr* N, MachineInstr* prev) { N->prev = prev; } 4494dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos static void setNext(MachineInstr* N, MachineInstr* next) { N->next = next; } 4594dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 46aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos static MachineInstr* createNode(); 47aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos void addNodeToList(MachineInstr* N); 48aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos void removeNodeFromList(MachineInstr* N); 49aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos void transferNodesFromList( 50aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos iplist<MachineInstr, ilist_traits<MachineInstr> >& toList, 51aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos ilist_iterator<MachineInstr> first, 52aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos ilist_iterator<MachineInstr> last); 5394dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos}; 5494dc07728f091c652f0a8059aba6dce5018485eeAlkis Evlogimenos 55aec11f1decda111112c39803cb89dace81cd0568Chris Lattnerclass BasicBlock; 56deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 57d0aa0cdbc6fee00f2b2019633a9b9d00d301ac68Chris Lattnerclass MachineBasicBlock { 58c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenospublic: 59c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos typedef ilist<MachineInstr> Instructions; 60c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos Instructions Insts; 618e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner MachineBasicBlock *Prev, *Next; 621194e9501984daf0d3237ed1bf18a156173e7fd4Chris Lattner const BasicBlock *BB; 63deb9654056939a12981446f6ed1139dca3412746Vikram S. Advepublic: 64ab8672c8bb83e722b856eac67863542ea7e0cbb2Alkis Evlogimenos MachineBasicBlock(const BasicBlock *bb = 0) : Prev(0), Next(0), BB(bb) { 65ab8672c8bb83e722b856eac67863542ea7e0cbb2Alkis Evlogimenos Insts.parent = this; 66ab8672c8bb83e722b856eac67863542ea7e0cbb2Alkis Evlogimenos } 67fce1143bcfa73f61845002fa50473d1a01384202Misha Brukman ~MachineBasicBlock() {} 68deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 69d0aa0cdbc6fee00f2b2019633a9b9d00d301ac68Chris Lattner /// getBasicBlock - Return the LLVM basic block that this instance 70d0aa0cdbc6fee00f2b2019633a9b9d00d301ac68Chris Lattner /// corresponded to originally. 71d0aa0cdbc6fee00f2b2019633a9b9d00d301ac68Chris Lattner /// 721194e9501984daf0d3237ed1bf18a156173e7fd4Chris Lattner const BasicBlock *getBasicBlock() const { return BB; } 735e61fa95196b85281eec655787e9c73267532bd1Chris Lattner 745e61fa95196b85281eec655787e9c73267532bd1Chris Lattner /// getParent - Return the MachineFunction containing this basic block. 755e61fa95196b85281eec655787e9c73267532bd1Chris Lattner /// 765e61fa95196b85281eec655787e9c73267532bd1Chris Lattner const MachineFunction *getParent() const; 775e61fa95196b85281eec655787e9c73267532bd1Chris Lattner 78c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos typedef ilist<MachineInstr>::iterator iterator; 79c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos typedef ilist<MachineInstr>::const_iterator const_iterator; 80deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve typedef std::reverse_iterator<const_iterator> const_reverse_iterator; 81deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve typedef std::reverse_iterator<iterator> reverse_iterator; 82deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 83deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve unsigned size() const { return Insts.size(); } 84deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve bool empty() const { return Insts.empty(); } 85deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 86c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos MachineInstr& front() { return Insts.front(); } 87c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos MachineInstr& back() { return Insts.back(); } 88deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 89deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve iterator begin() { return Insts.begin(); } 90deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve const_iterator begin() const { return Insts.begin(); } 91deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve iterator end() { return Insts.end(); } 92deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve const_iterator end() const { return Insts.end(); } 93deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve reverse_iterator rbegin() { return Insts.rbegin(); } 94deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve const_reverse_iterator rbegin() const { return Insts.rbegin(); } 95deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve reverse_iterator rend () { return Insts.rend(); } 96deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve const_reverse_iterator rend () const { return Insts.rend(); } 97deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 98deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve void push_back(MachineInstr *MI) { Insts.push_back(MI); } 99deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve template<typename IT> 100deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve void insert(iterator I, IT S, IT E) { Insts.insert(I, S, E); } 101deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve iterator insert(iterator I, MachineInstr *M) { return Insts.insert(I, M); } 102deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 10346d6a1aeb549a2e4ccd982a1a2cefda541d79c52Vikram S. Adve // erase - Remove the specified element or range from the instruction list. 104c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos // These functions delete any instructions removed. 105deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve // 10646d6a1aeb549a2e4ccd982a1a2cefda541d79c52Vikram S. Adve iterator erase(iterator I) { return Insts.erase(I); } 107deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve iterator erase(iterator I, iterator E) { return Insts.erase(I, E); } 108c0b9dc5be79f009d260edb5cd5e1d8346587aaa2Alkis Evlogimenos MachineInstr* remove(iterator &I) { return Insts.remove(I); } 1098e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner 110f13a3f4dd1eaa89ca9a64a1e820b089facca3366Brian Gaeke // Debugging methods. 111f13a3f4dd1eaa89ca9a64a1e820b089facca3366Brian Gaeke void dump() const; 112f13a3f4dd1eaa89ca9a64a1e820b089facca3366Brian Gaeke void print(std::ostream &OS) const; 113f13a3f4dd1eaa89ca9a64a1e820b089facca3366Brian Gaeke 1148e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattnerprivate: // Methods used to maintain doubly linked list of blocks... 1158e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner friend class ilist_traits<MachineBasicBlock>; 1168e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner 1178e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner MachineBasicBlock *getPrev() const { return Prev; } 1188e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner MachineBasicBlock *getNext() const { return Next; } 1198e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner void setPrev(MachineBasicBlock *P) { Prev = P; } 1208e7ae9860bd1f29c95e4e10fe151a22aaafafef9Chris Lattner void setNext(MachineBasicBlock *N) { Next = N; } 121deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve}; 122deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 123d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke} // End llvm namespace 124deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve 125deb9654056939a12981446f6ed1139dca3412746Vikram S. Adve#endif 126