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Remove allocatable registers vector. It is already provided by
LiveVariables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -94,8 +94,6 @@ namespace llvm {
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MachineBasicBlock::iterator currentInstr_;
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LiveVariables* lv_;
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std::vector<bool> allocatableRegisters_;
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typedef std::map<unsigned, MachineBasicBlock*> MbbIndex2MbbMap;
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MbbIndex2MbbMap mbbi2mbbMap_;
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@ -94,8 +94,6 @@ namespace llvm {
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MachineBasicBlock::iterator currentInstr_;
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LiveVariables* lv_;
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std::vector<bool> allocatableRegisters_;
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typedef std::map<unsigned, MachineBasicBlock*> MbbIndex2MbbMap;
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MbbIndex2MbbMap mbbi2mbbMap_;
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@ -65,27 +65,12 @@ bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
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tm_ = &fn.getTarget();
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mri_ = tm_->getRegisterInfo();
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lv_ = &getAnalysis<LiveVariables>();
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allocatableRegisters_.clear();
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mbbi2mbbMap_.clear();
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mi2iMap_.clear();
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r2iMap_.clear();
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r2iMap_.clear();
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intervals_.clear();
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// mark allocatable registers
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allocatableRegisters_.resize(MRegisterInfo::FirstVirtualRegister);
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// Loop over all of the register classes...
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for (MRegisterInfo::regclass_iterator
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rci = mri_->regclass_begin(), rce = mri_->regclass_end();
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rci != rce; ++rci) {
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// Loop over all of the allocatable registers in the function...
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for (TargetRegisterClass::iterator
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i = (*rci)->allocation_order_begin(*mf_),
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e = (*rci)->allocation_order_end(*mf_); i != e; ++i) {
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allocatableRegisters_[*i] = true; // The reg is allocatable!
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}
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}
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// number MachineInstrs
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unsigned miIndex = 0;
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for (MachineFunction::iterator mbb = mf_->begin(), mbbEnd = mf_->end();
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@ -206,11 +191,7 @@ void LiveIntervals::handlePhysicalRegisterDef(MachineBasicBlock* mbb,
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MachineBasicBlock::iterator mi,
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unsigned reg)
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{
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DEBUG(std::cerr << "\t\tregister: ";printRegName(reg); std::cerr << '\n');
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if (!lv_->getAllocatablePhysicalRegisters()[reg]) {
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DEBUG(std::cerr << "\t\t\tnon allocatable register: ignoring\n");
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return;
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}
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DEBUG(std::cerr << "\t\tregister: "; printRegName(reg));
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unsigned start = getInstructionIndex(*mi);
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unsigned end = start;
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@ -259,7 +240,7 @@ void LiveIntervals::handleRegisterDef(MachineBasicBlock* mbb,
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unsigned reg)
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{
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if (reg < MRegisterInfo::FirstVirtualRegister) {
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if (allocatableRegisters_[reg]) {
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if (lv_->getAllocatablePhysicalRegisters()[reg]) {
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handlePhysicalRegisterDef(mbb, mi, reg);
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for (const unsigned* as = mri_->getAliasSet(reg); *as; ++as)
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handlePhysicalRegisterDef(mbb, mi, *as);
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@ -94,8 +94,6 @@ namespace llvm {
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MachineBasicBlock::iterator currentInstr_;
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LiveVariables* lv_;
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std::vector<bool> allocatableRegisters_;
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typedef std::map<unsigned, MachineBasicBlock*> MbbIndex2MbbMap;
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MbbIndex2MbbMap mbbi2mbbMap_;
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