diff options
author | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-08-04 09:46:26 +0000 |
---|---|---|
committer | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-08-04 09:46:26 +0000 |
commit | 1a8ea01f01b30e28e4e3ac0e3a344c4a4d579270 (patch) | |
tree | fe4811145a99784f3d2ddb8ada34c3825682f967 /include/llvm/CodeGen | |
parent | 3e0ef892799a1841f0ddc5e9b832bef8e8ca41e1 (diff) | |
download | llvm-1a8ea01f01b30e28e4e3ac0e3a344c4a4d579270.tar.gz llvm-1a8ea01f01b30e28e4e3ac0e3a344c4a4d579270.tar.bz2 llvm-1a8ea01f01b30e28e4e3ac0e3a344c4a4d579270.tar.xz |
Convert indentation to 2 spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15489 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen')
-rw-r--r-- | include/llvm/CodeGen/LiveIntervalAnalysis.h | 304 |
1 files changed, 152 insertions, 152 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h index e4e31ec249..de7cc8001f 100644 --- a/include/llvm/CodeGen/LiveIntervalAnalysis.h +++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h @@ -25,160 +25,160 @@ namespace llvm { - class LiveVariables; - class MRegisterInfo; - class VirtRegMap; - - class LiveIntervals : public MachineFunctionPass { - MachineFunction* mf_; - const TargetMachine* tm_; - const MRegisterInfo* mri_; - LiveVariables* lv_; - - typedef std::map<MachineInstr*, unsigned> Mi2IndexMap; - Mi2IndexMap mi2iMap_; - - typedef std::vector<MachineInstr*> Index2MiMap; - Index2MiMap i2miMap_; - - typedef std::map<unsigned, LiveInterval> Reg2IntervalMap; - Reg2IntervalMap r2iMap_; - - typedef std::map<unsigned, unsigned> Reg2RegMap; - Reg2RegMap r2rMap_; - - public: - struct InstrSlots - { - enum { - LOAD = 0, - USE = 1, - DEF = 2, - STORE = 3, - NUM = 4, - }; - }; - - static unsigned getBaseIndex(unsigned index) { - return index - (index % InstrSlots::NUM); - } - static unsigned getBoundaryIndex(unsigned index) { - return getBaseIndex(index + InstrSlots::NUM - 1); - } - static unsigned getLoadIndex(unsigned index) { - return getBaseIndex(index) + InstrSlots::LOAD; - } - static unsigned getUseIndex(unsigned index) { - return getBaseIndex(index) + InstrSlots::USE; - } - static unsigned getDefIndex(unsigned index) { - return getBaseIndex(index) + InstrSlots::DEF; - } - static unsigned getStoreIndex(unsigned index) { - return getBaseIndex(index) + InstrSlots::STORE; - } - - // FIXME: this should really be a const_iterator - typedef Reg2IntervalMap::iterator iterator; - iterator begin() { return r2iMap_.begin(); } - iterator end() { return r2iMap_.end(); } - unsigned getNumIntervals() const { return r2iMap_.size(); } - - LiveInterval &getInterval(unsigned reg) { - Reg2IntervalMap::iterator I = r2iMap_.find(reg); - assert(I != r2iMap_.end() && "Interval does not exist for register"); - return I->second; - } - - const LiveInterval &getInterval(unsigned reg) const { - Reg2IntervalMap::const_iterator I = r2iMap_.find(reg); - assert(I != r2iMap_.end() && "Interval does not exist for register"); - return I->second; - } - - /// getInstructionIndex - returns the base index of instr - unsigned getInstructionIndex(MachineInstr* instr) const { - Mi2IndexMap::const_iterator it = mi2iMap_.find(instr); - assert(it != mi2iMap_.end() && "Invalid instruction!"); - return it->second; - } - - /// getInstructionFromIndex - given an index in any slot of an - /// instruction return a pointer the instruction - MachineInstr* getInstructionFromIndex(unsigned index) const { - index /= InstrSlots::NUM; // convert index to vector index - assert(index < i2miMap_.size() && - "index does not correspond to an instruction"); - return i2miMap_[index]; - } - - std::vector<LiveInterval*> addIntervalsForSpills(const LiveInterval& i, - VirtRegMap& vrm, - int slot); - - virtual void getAnalysisUsage(AnalysisUsage &AU) const; - virtual void releaseMemory(); - - /// runOnMachineFunction - pass entry point - virtual bool runOnMachineFunction(MachineFunction&); - - private: - /// computeIntervals - compute live intervals - void computeIntervals(); - - /// joinIntervals - join compatible live intervals - void joinIntervals(); - - /// joinIntervalsInMachineBB - Join intervals based on move - /// instructions in the specified basic block. - void joinIntervalsInMachineBB(MachineBasicBlock *MBB); - - /// handleRegisterDef - update intervals for a register def - /// (calls handlePhysicalRegisterDef and - /// handleVirtualRegisterDef) - void handleRegisterDef(MachineBasicBlock* mbb, - MachineBasicBlock::iterator mi, - unsigned reg); - - /// handleVirtualRegisterDef - update intervals for a virtual - /// register def - void handleVirtualRegisterDef(MachineBasicBlock* mbb, - MachineBasicBlock::iterator mi, - LiveInterval& interval); - - /// handlePhysicalRegisterDef - update intervals for a - /// physical register def - void handlePhysicalRegisterDef(MachineBasicBlock* mbb, - MachineBasicBlock::iterator mi, - LiveInterval& interval); - - /// Return true if the two specified registers belong to different - /// register classes. The registers may be either phys or virt regs. - bool differingRegisterClasses(unsigned RegA, unsigned RegB) const; - - bool overlapsAliases(const LiveInterval *lhs, - const LiveInterval *rhs) const; - - static LiveInterval createInterval(unsigned Reg); - - LiveInterval &getOrCreateInterval(unsigned reg) { - Reg2IntervalMap::iterator I = r2iMap_.find(reg); - if (I == r2iMap_.end()) - I = r2iMap_.insert(I, std::make_pair(reg, createInterval(reg))); - return I->second; - } - - /// rep - returns the representative of this register - unsigned rep(unsigned reg) { - Reg2RegMap::iterator it = r2rMap_.find(reg); - if (it != r2rMap_.end()) - return it->second = rep(it->second); - return reg; - } - - void printRegName(unsigned reg) const; + class LiveVariables; + class MRegisterInfo; + class VirtRegMap; + + class LiveIntervals : public MachineFunctionPass { + MachineFunction* mf_; + const TargetMachine* tm_; + const MRegisterInfo* mri_; + LiveVariables* lv_; + + typedef std::map<MachineInstr*, unsigned> Mi2IndexMap; + Mi2IndexMap mi2iMap_; + + typedef std::vector<MachineInstr*> Index2MiMap; + Index2MiMap i2miMap_; + + typedef std::map<unsigned, LiveInterval> Reg2IntervalMap; + Reg2IntervalMap r2iMap_; + + typedef std::map<unsigned, unsigned> Reg2RegMap; + Reg2RegMap r2rMap_; + + public: + struct InstrSlots + { + enum { + LOAD = 0, + USE = 1, + DEF = 2, + STORE = 3, + NUM = 4, + }; }; + static unsigned getBaseIndex(unsigned index) { + return index - (index % InstrSlots::NUM); + } + static unsigned getBoundaryIndex(unsigned index) { + return getBaseIndex(index + InstrSlots::NUM - 1); + } + static unsigned getLoadIndex(unsigned index) { + return getBaseIndex(index) + InstrSlots::LOAD; + } + static unsigned getUseIndex(unsigned index) { + return getBaseIndex(index) + InstrSlots::USE; + } + static unsigned getDefIndex(unsigned index) { + return getBaseIndex(index) + InstrSlots::DEF; + } + static unsigned getStoreIndex(unsigned index) { + return getBaseIndex(index) + InstrSlots::STORE; + } + + // FIXME: this should really be a const_iterator + typedef Reg2IntervalMap::iterator iterator; + iterator begin() { return r2iMap_.begin(); } + iterator end() { return r2iMap_.end(); } + unsigned getNumIntervals() const { return r2iMap_.size(); } + + LiveInterval &getInterval(unsigned reg) { + Reg2IntervalMap::iterator I = r2iMap_.find(reg); + assert(I != r2iMap_.end() && "Interval does not exist for register"); + return I->second; + } + + const LiveInterval &getInterval(unsigned reg) const { + Reg2IntervalMap::const_iterator I = r2iMap_.find(reg); + assert(I != r2iMap_.end() && "Interval does not exist for register"); + return I->second; + } + + /// getInstructionIndex - returns the base index of instr + unsigned getInstructionIndex(MachineInstr* instr) const { + Mi2IndexMap::const_iterator it = mi2iMap_.find(instr); + assert(it != mi2iMap_.end() && "Invalid instruction!"); + return it->second; + } + + /// getInstructionFromIndex - given an index in any slot of an + /// instruction return a pointer the instruction + MachineInstr* getInstructionFromIndex(unsigned index) const { + index /= InstrSlots::NUM; // convert index to vector index + assert(index < i2miMap_.size() && + "index does not correspond to an instruction"); + return i2miMap_[index]; + } + + std::vector<LiveInterval*> addIntervalsForSpills(const LiveInterval& i, + VirtRegMap& vrm, + int slot); + + virtual void getAnalysisUsage(AnalysisUsage &AU) const; + virtual void releaseMemory(); + + /// runOnMachineFunction - pass entry point + virtual bool runOnMachineFunction(MachineFunction&); + + private: + /// computeIntervals - compute live intervals + void computeIntervals(); + + /// joinIntervals - join compatible live intervals + void joinIntervals(); + + /// joinIntervalsInMachineBB - Join intervals based on move + /// instructions in the specified basic block. + void joinIntervalsInMachineBB(MachineBasicBlock *MBB); + + /// handleRegisterDef - update intervals for a register def + /// (calls handlePhysicalRegisterDef and + /// handleVirtualRegisterDef) + void handleRegisterDef(MachineBasicBlock* mbb, + MachineBasicBlock::iterator mi, + unsigned reg); + + /// handleVirtualRegisterDef - update intervals for a virtual + /// register def + void handleVirtualRegisterDef(MachineBasicBlock* mbb, + MachineBasicBlock::iterator mi, + LiveInterval& interval); + + /// handlePhysicalRegisterDef - update intervals for a + /// physical register def + void handlePhysicalRegisterDef(MachineBasicBlock* mbb, + MachineBasicBlock::iterator mi, + LiveInterval& interval); + + /// Return true if the two specified registers belong to different + /// register classes. The registers may be either phys or virt regs. + bool differingRegisterClasses(unsigned RegA, unsigned RegB) const; + + bool overlapsAliases(const LiveInterval *lhs, + const LiveInterval *rhs) const; + + static LiveInterval createInterval(unsigned Reg); + + LiveInterval &getOrCreateInterval(unsigned reg) { + Reg2IntervalMap::iterator I = r2iMap_.find(reg); + if (I == r2iMap_.end()) + I = r2iMap_.insert(I, std::make_pair(reg, createInterval(reg))); + return I->second; + } + + /// rep - returns the representative of this register + unsigned rep(unsigned reg) { + Reg2RegMap::iterator it = r2rMap_.find(reg); + if (it != r2rMap_.end()) + return it->second = rep(it->second); + return reg; + } + + void printRegName(unsigned reg) const; + }; + } // End llvm namespace #endif |