1.7.6.1Copyright © 2003-2014 University of Illinois at Urbana-Champaign. All Rights Reserved.
LLVM API Documentation
#include <MachineRegisterInfo.h>
MachineRegisterInfo - Keep track of information for virtual and physical registers, including vreg register classes, use/def chains for registers, etc.
Definition at line 32 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<false,true,false,false,false,true> llvm::MachineRegisterInfo::def_bundle_iterator |
def_bundle_iterator/def_bundle_begin/def_bundle_end - Walk all defs of the specified register, stepping by bundle.
Definition at line 360 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<false,true,false,false,true,false> llvm::MachineRegisterInfo::def_instr_iterator |
def_instr_iterator/def_instr_begin/def_instr_end - Walk all defs of the specified register, stepping by MachineInst.
Definition at line 343 of file MachineRegisterInfo.h.
| typedef defusechain_iterator<false,true,false,true,false,false> llvm::MachineRegisterInfo::def_iterator |
def_iterator/def_begin/def_end - Walk all defs of the specified register.
Definition at line 330 of file MachineRegisterInfo.h.
| typedef std::vector<std::pair<unsigned,unsigned> >::const_iterator llvm::MachineRegisterInfo::livein_iterator |
Definition at line 750 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,true,false,false,false,true> llvm::MachineRegisterInfo::reg_bundle_iterator |
reg_bundle_iterator/reg_bundle_begin/reg_bundle_end - Walk all defs and uses of the specified register, stepping by bundle.
Definition at line 252 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,true,true,false,false,true> llvm::MachineRegisterInfo::reg_bundle_nodbg_iterator |
reg_bundle_nodbg_iterator/reg_bundle_nodbg_begin/reg_bundle_nodbg_end - Walk all defs and uses of the specified register, stepping by bundle, skipping those marked as Debug.
Definition at line 308 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,true,false,false,true,false> llvm::MachineRegisterInfo::reg_instr_iterator |
reg_instr_iterator/reg_instr_begin/reg_instr_end - Walk all defs and uses of the specified register, stepping by MachineInstr.
Definition at line 235 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,true,true,false,true,false> llvm::MachineRegisterInfo::reg_instr_nodbg_iterator |
reg_instr_nodbg_iterator/reg_instr_nodbg_begin/reg_instr_nodbg_end - Walk all defs and uses of the specified register, stepping by MachineInstr, skipping those marked as Debug.
Definition at line 290 of file MachineRegisterInfo.h.
| typedef defusechain_iterator<true,true,false,true,false,false> llvm::MachineRegisterInfo::reg_iterator |
reg_iterator/reg_begin/reg_end - Walk all defs and uses of the specified register.
Definition at line 222 of file MachineRegisterInfo.h.
| typedef defusechain_iterator<true,true,true,true,false,false> llvm::MachineRegisterInfo::reg_nodbg_iterator |
reg_nodbg_iterator/reg_nodbg_begin/reg_nodbg_end - Walk all defs and uses of the specified register, skipping those marked as Debug.
Definition at line 272 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,false,false,false,false,true> llvm::MachineRegisterInfo::use_bundle_iterator |
use_bundle_iterator/use_bundle_begin/use_bundle_end - Walk all uses of the specified register, stepping by bundle.
Definition at line 418 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,false,true,false,false,true> llvm::MachineRegisterInfo::use_bundle_nodbg_iterator |
use_bundle_nodbg_iterator/use_bundle_nodbg_begin/use_bundle_nodbg_end - Walk all uses of the specified register, stepping by bundle, skipping those marked as Debug.
Definition at line 483 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,false,false,false,true,false> llvm::MachineRegisterInfo::use_instr_iterator |
use_instr_iterator/use_instr_begin/use_instr_end - Walk all uses of the specified register, stepping by MachineInstr.
Definition at line 401 of file MachineRegisterInfo.h.
| typedef defusechain_instr_iterator<true,false,true,false,true,false> llvm::MachineRegisterInfo::use_instr_nodbg_iterator |
use_instr_nodbg_iterator/use_instr_nodbg_begin/use_instr_nodbg_end - Walk all uses of the specified register, stepping by MachineInstr, skipping those marked as Debug.
Definition at line 465 of file MachineRegisterInfo.h.
| typedef defusechain_iterator<true,false,false,true,false,false> llvm::MachineRegisterInfo::use_iterator |
use_iterator/use_begin/use_end - Walk all uses of the specified register.
Definition at line 388 of file MachineRegisterInfo.h.
| typedef defusechain_iterator<true,false,true,true,false,false> llvm::MachineRegisterInfo::use_nodbg_iterator |
use_nodbg_iterator/use_nodbg_begin/use_nodbg_end - Walk all uses of the specified register, skipping those marked as Debug.
Definition at line 447 of file MachineRegisterInfo.h.
| MachineRegisterInfo::MachineRegisterInfo | ( | const MachineFunction * | MF | ) | [explicit] |
Definition at line 26 of file MachineRegisterInfo.cpp.
References getTargetRegisterInfo(), llvm::IndexedMap< T, ToIndexT >::reserve(), and llvm::BitVector::resize().
| void llvm::MachineRegisterInfo::addLiveIn | ( | unsigned | Reg, |
| unsigned | vreg = 0 |
||
| ) | [inline] |
addLiveIn - Add the specified register as a live-in. Note that it is an error to add the same register to the same set more than once.
Definition at line 743 of file MachineRegisterInfo.h.
Referenced by llvm::MachineFunction::addLiveIn(), addLiveIn(), llvm::AMDGPUTargetLowering::CreateLiveInRegister(), llvm::HexagonTargetLowering::LowerFormalArguments(), llvm::SystemZTargetLowering::LowerFormalArguments(), llvm::SparcTargetLowering::LowerFormalArguments_32(), and llvm::R600TargetLowering::LowerOperation().
| void llvm::MachineRegisterInfo::addPhysRegsUsedFromRegMask | ( | const uint32_t * | RegMask | ) | [inline] |
addPhysRegsUsedFromRegMask - Mark any registers not in RegMask as used. This corresponds to the bit mask attached to register mask operands.
Definition at line 664 of file MachineRegisterInfo.h.
References llvm::BitVector::setBitsNotInMask().
Add MO to the linked list of operands for its register.
Definition at line 167 of file MachineRegisterInfo.cpp.
References llvm::MachineOperand::getReg(), llvm::MachineOperand::isDef(), llvm::IndexedInstrProf::Last, and llvm::MachineOperand::Reg.
Referenced by llvm::MachineInstr::addOperand(), llvm::MachineOperand::ChangeToRegister(), llvm::MachineOperand::setIsDef(), and llvm::MachineOperand::setReg().
| bool llvm::MachineRegisterInfo::canReserveReg | ( | unsigned | PhysReg | ) | const [inline] |
canReserveReg - Returns true if PhysReg can be used as a reserved register. Any register can be reserved before freezeReservedRegs() is called.
Definition at line 703 of file MachineRegisterInfo.h.
References reservedRegsFrozen(), and llvm::BitVector::test().
Referenced by llvm::ARMBaseRegisterInfo::canRealignStack().
| void MachineRegisterInfo::clearKillFlags | ( | unsigned | Reg | ) | const |
clearKillFlags - Iterate over all the uses of the given register and clear the kill flag from the MachineOperand. This function is used by optimization passes which extend register lifetimes and need only preserve conservative kill flag information.
Definition at line 332 of file MachineRegisterInfo.cpp.
References use_operands().
Referenced by llvm::AArch64InstrInfo::insertSelect(), and llvm::HexagonInstrInfo::PredicateInstruction().
| void MachineRegisterInfo::clearVirtRegs | ( | ) |
clearVirtRegs - Remove all virtual registers (after physreg assignment).
Definition at line 107 of file MachineRegisterInfo.cpp.
References llvm::IndexedMap< T, ToIndexT >::clear(), getNumVirtRegs(), llvm::TargetRegisterInfo::index2VirtReg(), llvm_unreachable, and verifyUseList().
Referenced by llvm::PEI::runOnMachineFunction().
| const TargetRegisterClass * MachineRegisterInfo::constrainRegClass | ( | unsigned | Reg, |
| const TargetRegisterClass * | RC, | ||
| unsigned | MinNumRegs = 0 |
||
| ) |
constrainRegClass - Constrain the register class of the specified virtual register to be a common subclass of RC and the current register class, but only if the new class has at least MinNumRegs registers. Return the new register class, or NULL if no such class exists. This should only be used when the constraint is known to be trivial, like GR32 -> GR32_NOSP. Beware of increasing register pressure.
Definition at line 46 of file MachineRegisterInfo.cpp.
References llvm::TargetRegisterInfo::getCommonSubClass(), llvm::TargetRegisterClass::getNumRegs(), getRegClass(), getTargetRegisterInfo(), and setRegClass().
Referenced by llvm::MachineBasicBlock::addLiveIn(), llvm::FastISel::constrainOperandRegClass(), llvm::SystemZInstrInfo::convertToThreeAddress(), llvm::FastISel::fastEmitInst_extractsubreg(), llvm::AArch64InstrInfo::foldMemoryOperandImpl(), genMadd(), genMaddR(), llvm::AArch64InstrInfo::insertSelect(), llvm::Thumb2InstrInfo::loadRegFromStackSlot(), llvm::AArch64InstrInfo::loadRegFromStackSlot(), llvm::AArch64RegisterInfo::materializeFrameBaseRegister(), llvm::PPCRegisterInfo::materializeFrameBaseRegister(), llvm::ARMBaseRegisterInfo::materializeFrameBaseRegister(), llvm::ARMBaseInstrInfo::optimizeSelect(), llvm::PPCRegisterInfo::resolveFrameIndex(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::Thumb2InstrInfo::storeRegToStackSlot(), llvm::AArch64InstrInfo::storeRegToStackSlot(), and UpdateOperandRegClass().
createVirtualRegister - Create and return a new virtual register in the function with the specified register class.
Definition at line 91 of file MachineRegisterInfo.cpp.
References getNumVirtRegs(), llvm::IndexedMap< T, ToIndexT >::grow(), llvm::TargetRegisterInfo::index2VirtReg(), llvm::TargetRegisterClass::isAllocatable(), and llvm::MachineRegisterInfo::Delegate::MRI_NoteNewVirtualRegister().
Referenced by llvm::MachineFunction::addLiveIn(), llvm::MachineBasicBlock::addLiveIn(), addLiveIn(), llvm::LiveRangeEdit::createEmptyIntervalFrom(), llvm::LiveRangeEdit::createFrom(), llvm::AMDGPUTargetLowering::CreateLiveInRegister(), llvm::FunctionLoweringInfo::CreateReg(), llvm::FastISel::createResultReg(), llvm::HexagonInstrInfo::createVR(), llvm::SystemZRegisterInfo::eliminateFrameIndex(), llvm::Thumb1RegisterInfo::eliminateFrameIndex(), llvm::AArch64RegisterInfo::eliminateFrameIndex(), llvm::PPCRegisterInfo::eliminateFrameIndex(), llvm::ARMBaseRegisterInfo::eliminateFrameIndex(), llvm::PPCTargetLowering::EmitAtomicBinary(), llvm::PPCTargetLowering::emitEHSjLjLongJmp(), llvm::PPCTargetLowering::emitEHSjLjSetJmp(), llvm::R600TargetLowering::EmitInstrWithCustomInserter(), llvm::SITargetLowering::EmitInstrWithCustomInserter(), llvm::ARMTargetLowering::EmitInstrWithCustomInserter(), llvm::PPCTargetLowering::EmitInstrWithCustomInserter(), llvm::PPCTargetLowering::EmitPartwordAtomicBinary(), llvm::NVPTXFrameLowering::emitPrologue(), llvm::MSP430TargetLowering::EmitShiftInstr(), emitThumbRegPlusImmInReg(), llvm::SparcTargetLowering::expandAtomicRMW(), llvm::ARMBaseInstrInfo::FoldImmediate(), forceReg(), llvm::AArch64InstrInfo::genAlternativeCodeSequence(), llvm::MipsFunctionInfo::getGlobalBaseReg(), llvm::SparcInstrInfo::getGlobalBaseReg(), llvm::MipsFunctionInfo::getMips16SPAliasReg(), GetRegistersForValue(), InsertNewDef(), llvm::SIInstrInfo::legalizeOperands(), llvm::SIInstrInfo::legalizeOpWithMove(), llvm::MipsSEInstrInfo::loadImmediate(), llvm::PPCRegisterInfo::lowerCRBitRestore(), llvm::PPCRegisterInfo::lowerCRBitSpilling(), llvm::PPCRegisterInfo::lowerCRRestore(), llvm::PPCRegisterInfo::lowerCRSpilling(), llvm::PPCRegisterInfo::lowerDynamicAlloc(), llvm::HexagonTargetLowering::LowerFormalArguments(), llvm::SystemZTargetLowering::LowerFormalArguments(), llvm::SparcTargetLowering::LowerFormalArguments_32(), llvm::PPCRegisterInfo::lowerVRSAVERestore(), llvm::PPCRegisterInfo::lowerVRSAVESpilling(), llvm::SIInstrInfo::moveSMRDToVALU(), llvm::SIInstrInfo::moveToVALU(), and llvm::SIInstrInfo::splitSMRD().
| def_iterator llvm::MachineRegisterInfo::def_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 331 of file MachineRegisterInfo.h.
Referenced by def_empty(), def_operands(), hasOneDef(), isKilled(), and MustSaveLR().
| def_bundle_iterator llvm::MachineRegisterInfo::def_bundle_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 361 of file MachineRegisterInfo.h.
Referenced by def_bundles().
| static def_bundle_iterator llvm::MachineRegisterInfo::def_bundle_end | ( | ) | [inline, static] |
Definition at line 364 of file MachineRegisterInfo.h.
Referenced by def_bundles().
| iterator_range<def_bundle_iterator> llvm::MachineRegisterInfo::def_bundles | ( | unsigned | Reg | ) | const [inline] |
Definition at line 368 of file MachineRegisterInfo.h.
References def_bundle_begin(), and def_bundle_end().
| bool llvm::MachineRegisterInfo::def_empty | ( | unsigned | RegNo | ) | const [inline] |
def_empty - Return true if there are no instructions defining the specified register (it may be live-in).
Definition at line 375 of file MachineRegisterInfo.h.
References def_begin(), and def_end().
Referenced by llvm::PBQPBuilder::build(), getUniqueVRegDef(), and isConstantPhysReg().
| static def_iterator llvm::MachineRegisterInfo::def_end | ( | ) | [inline, static] |
Definition at line 334 of file MachineRegisterInfo.h.
Referenced by def_empty(), def_operands(), hasOneDef(), isKilled(), and MustSaveLR().
| def_instr_iterator llvm::MachineRegisterInfo::def_instr_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 344 of file MachineRegisterInfo.h.
Referenced by def_instructions(), getUniqueVRegDef(), getVRegDef(), and regIsPICBase().
| static def_instr_iterator llvm::MachineRegisterInfo::def_instr_end | ( | ) | [inline, static] |
Definition at line 347 of file MachineRegisterInfo.h.
Referenced by def_instructions(), getUniqueVRegDef(), getVRegDef(), and regIsPICBase().
| iterator_range<def_instr_iterator> llvm::MachineRegisterInfo::def_instructions | ( | unsigned | Reg | ) | const [inline] |
Definition at line 352 of file MachineRegisterInfo.h.
References def_instr_begin(), and def_instr_end().
Referenced by isImplicitlyDefined().
| iterator_range<def_iterator> llvm::MachineRegisterInfo::def_operands | ( | unsigned | Reg | ) | const [inline] |
Definition at line 336 of file MachineRegisterInfo.h.
References def_begin(), and def_end().
Referenced by llvm::LiveRangeCalc::createDeadDefs().
| void MachineRegisterInfo::dumpUses | ( | unsigned | RegNo | ) | const |
Definition at line 395 of file MachineRegisterInfo.cpp.
References I, and use_instructions().
| void MachineRegisterInfo::EmitLiveInCopies | ( | MachineBasicBlock * | EntryMBB, |
| const TargetRegisterInfo & | TRI, | ||
| const TargetInstrInfo & | TII | ||
| ) |
EmitLiveInCopies - Emit copies to initialize livein virtual registers into the given entry block.
Definition at line 365 of file MachineRegisterInfo.cpp.
References llvm::MachineBasicBlock::addLiveIn(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::TargetOpcode::COPY, llvm::MCInstrInfo::get(), and use_empty().
Referenced by llvm::SelectionDAGISel::runOnMachineFunction().
| void MachineRegisterInfo::freezeReservedRegs | ( | const MachineFunction & | MF | ) |
freezeReservedRegs - Called by the register allocator to freeze the set of reserved registers before allocation begins.
Definition at line 401 of file MachineRegisterInfo.cpp.
References llvm::MCRegisterInfo::getNumRegs(), llvm::TargetRegisterInfo::getReservedRegs(), getTargetRegisterInfo(), and llvm::BitVector::size().
Referenced by llvm::RegAllocBase::init(), and llvm::SelectionDAGISel::runOnMachineFunction().
| unsigned MachineRegisterInfo::getLiveInPhysReg | ( | unsigned | VReg | ) | const |
getLiveInPhysReg - If VReg is a live-in virtual register, return the corresponding live-in physical register.
Definition at line 346 of file MachineRegisterInfo.cpp.
References I, livein_begin(), and livein_end().
| unsigned MachineRegisterInfo::getLiveInVirtReg | ( | unsigned | PReg | ) | const |
getLiveInVirtReg - If PReg is a live-in physical register, return the corresponding live-in physical register.
Definition at line 355 of file MachineRegisterInfo.cpp.
References I, livein_begin(), and livein_end().
Referenced by llvm::MachineFunction::addLiveIn(), and llvm::AMDGPUTargetLowering::CreateLiveInRegister().
| unsigned llvm::MachineRegisterInfo::getNumVirtRegs | ( | ) | const [inline] |
getNumVirtRegs - Return the number of virtual registers created.
Definition at line 596 of file MachineRegisterInfo.h.
References llvm::IndexedMap< T, ToIndexT >::size().
Referenced by llvm::LiveIntervals::addKillFlags(), llvm::LiveVariables::addNewBlock(), llvm::ScheduleDAGInstrs::buildSchedGraph(), clearVirtRegs(), createVirtualRegister(), llvm::VirtRegMap::grow(), llvm::RegPressureTracker::init(), llvm::VirtRegMap::print(), llvm::LiveIntervals::print(), llvm::PEI::runOnMachineFunction(), llvm::LiveIntervals::runOnMachineFunction(), llvm::ScheduleDAGInstrs::ScheduleDAGInstrs(), llvm::MachineBasicBlock::SplitCriticalEdge(), and verifyUseLists().
| PSetIterator llvm::MachineRegisterInfo::getPressureSets | ( | unsigned | RegUnit | ) | const [inline] |
Get an iterator over the pressure sets affected by the given physical or virtual register. If RegUnit is physical, it must be a register unit (from MCRegUnitIterator).
Definition at line 1010 of file MachineRegisterInfo.h.
Referenced by llvm::PressureDiff::addPressureChange(), llvm::RegPressureTracker::decreaseRegPressure(), llvm::RegPressureTracker::discoverLiveIn(), llvm::RegPressureTracker::discoverLiveOut(), llvm::RegPressureTracker::increaseRegPressure(), and llvm::RegPressureTracker::initLiveThru().
| std::pair<unsigned, unsigned> llvm::MachineRegisterInfo::getRegAllocationHint | ( | unsigned | Reg | ) | const [inline] |
getRegAllocationHint - Return the register allocation hint for the specified virtual register.
Definition at line 611 of file MachineRegisterInfo.h.
Referenced by llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), llvm::ARMBaseRegisterInfo::getRegAllocationHints(), llvm::TargetRegisterInfo::getRegAllocationHints(), getSimpleHint(), llvm::VirtRegMap::hasKnownPreference(), and llvm::ARMBaseRegisterInfo::UpdateRegAllocHint().
| const TargetRegisterClass* llvm::MachineRegisterInfo::getRegClass | ( | unsigned | Reg | ) | const [inline] |
getRegClass - Return the register class of the specified virtual register.
Definition at line 560 of file MachineRegisterInfo.h.
Referenced by llvm::MachineFunction::addLiveIn(), llvm::RegAllocBase::allocatePhysRegs(), llvm::AllocationOrder::AllocationOrder(), llvm::VirtRegMap::assignVirt2StackSlot(), llvm::PBQPBuilder::build(), llvm::LiveRangeEdit::calculateRegClassAndHint(), canFoldCopy(), canFoldIntoCSel(), llvm::PPCInstrInfo::canInsertSelect(), llvm::AArch64InstrInfo::canInsertSelect(), constrainRegClass(), llvm::SystemZInstrInfo::convertToThreeAddress(), copyHint(), llvm::NVPTXInstrInfo::copyPhysReg(), llvm::LiveRangeEdit::createEmptyIntervalFrom(), llvm::LiveRangeEdit::createFrom(), llvm::PPCTargetLowering::emitEHSjLjSetJmp(), llvm::SparcTargetLowering::expandAtomicRMW(), llvm::FastISel::fastEmitInst_extractsubreg(), llvm::ARMBaseInstrInfo::FoldImmediate(), llvm::SystemZInstrInfo::foldMemoryOperandImpl(), foldPatchpoint(), GetCostForDef(), llvm::PPCInstrInfo::getOperandLatency(), llvm::SIInstrInfo::getOpRegClass(), getRegTy(), hasVGPROperands(), llvm::MachineSSAUpdater::Initialize(), isFPR64(), isGPR64(), llvm::SIInstrInfo::isOperandLegal(), isPartialRegisterLoad(), isVGPR(), llvm::SIInstrInfo::legalizeOperands(), llvm::SIInstrInfo::moveToVALU(), llvm::ARMBaseInstrInfo::optimizeSelect(), llvm::VirtRegMap::print(), llvm::MachineInstr::print(), llvm::PSetIterator::PSetIterator(), recomputeRegClass(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::CoalescerPair::setRegisters(), and UpdateOperandRegClass().
| const BitVector& llvm::MachineRegisterInfo::getReservedRegs | ( | ) | const [inline] |
getReservedRegs - Returns a reference to the frozen set of reserved registers. This method should always be preferred to calling TRI::getReservedRegs() when possible.
Definition at line 710 of file MachineRegisterInfo.h.
References reservedRegsFrozen().
Referenced by isReserved(), and llvm::RegisterClassInfo::runOnMachineFunction().
| unsigned llvm::MachineRegisterInfo::getSimpleHint | ( | unsigned | Reg | ) | const [inline] |
getSimpleHint - Return the preferred register allocation hint, or 0 if a standard simple hint (Type == 0) is not set.
Definition at line 617 of file MachineRegisterInfo.h.
References getRegAllocationHint(), and Hint().
Referenced by llvm::VirtRegMap::hasPreferredPhys().
| const TargetRegisterInfo* llvm::MachineRegisterInfo::getTargetRegisterInfo | ( | ) | const [inline] |
Definition at line 128 of file MachineRegisterInfo.h.
Referenced by constrainRegClass(), freezeReservedRegs(), isAllocatable(), isConstantPhysReg(), isPhysRegUsed(), MachineRegisterInfo(), llvm::PSetIterator::PSetIterator(), recomputeRegClass(), replaceRegWith(), setPhysRegUnused(), setPhysRegUsed(), llvm::ARMBaseRegisterInfo::shouldCoalesce(), llvm::tryFoldSPUpdateIntoPushPop(), verifyUseList(), and verifyUseLists().
| MachineInstr * MachineRegisterInfo::getUniqueVRegDef | ( | unsigned | Reg | ) | const |
getUniqueVRegDef - Return the unique machine instr that defines the specified virtual register or null if none is found. If there are multiple definitions or no definition, return null.
Definition at line 313 of file MachineRegisterInfo.cpp.
References def_empty(), def_instr_begin(), def_instr_end(), and I.
Referenced by canCombineWithMUL(), foldImmediates(), genMadd(), genMaddR(), getDef(), llvm::AArch64InstrInfo::optimizeCompareInstr(), llvm::PPCInstrInfo::optimizeCompareInstr(), and llvm::ARMBaseInstrInfo::optimizeCompareInstr().
| MachineInstr * MachineRegisterInfo::getVRegDef | ( | unsigned | Reg | ) | const |
getVRegDef - Return the machine instr that defines the specified virtual register or null if none is found. This assumes that the code is in SSA form, so there should only be one definition.
Definition at line 302 of file MachineRegisterInfo.cpp.
References llvm::MachineRegisterInfo::defusechain_instr_iterator< ReturnUses, ReturnDefs, SkipDebug, ByOperand, ByInstr, ByBundle >::atEnd(), def_instr_begin(), def_instr_end(), and I.
Referenced by canCompareBeNewValueJump(), canFoldIntoCSel(), canFoldIntoMOVCC(), llvm::R600TargetLowering::EmitInstrWithCustomInserter(), llvm::LiveVariables::HandleVirtRegUse(), llvm::LiveVariables::VarInfo::isLiveIn(), MatchingStackOffset(), llvm::ARMBaseInstrInfo::produceSameValue(), removeCopies(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::LiveVariables::runOnMachineFunction(), and llvm::SSAUpdaterTraits< MachineSSAUpdater >::ValueIsPHI().
| bool llvm::MachineRegisterInfo::hasOneDef | ( | unsigned | RegNo | ) | const [inline] |
hasOneDef - Return true if there is exactly one instruction defining the specified register.
Definition at line 379 of file MachineRegisterInfo.h.
References def_begin(), and def_end().
Referenced by llvm::ScheduleDAGInstrs::addVRegDefDeps().
| bool MachineRegisterInfo::hasOneNonDBGUse | ( | unsigned | RegNo | ) | const |
hasOneNonDBGUse - Return true if there is exactly one non-Debug instruction using the specified register.
Definition at line 321 of file MachineRegisterInfo.cpp.
References use_nodbg_begin(), and use_nodbg_end().
Referenced by canCombineWithMUL(), canFoldIntoMOVCC(), findOnlyInterestingUse(), llvm::PPCInstrInfo::FoldImmediate(), llvm::ARMBaseInstrInfo::FoldImmediate(), and isOperandKill().
| bool llvm::MachineRegisterInfo::hasOneUse | ( | unsigned | RegNo | ) | const [inline] |
hasOneUse - Return true if there is exactly one instruction using the specified register.
Definition at line 437 of file MachineRegisterInfo.h.
References use_begin(), and use_end().
Referenced by isKilled(), and llvm::FastISel::tryToFoldLoad().
| void llvm::MachineRegisterInfo::invalidateLiveness | ( | ) | [inline] |
invalidateLiveness - Indicates that register liveness is no longer being tracked accurately.
This should be called by late passes that invalidate the liveness information.
Definition at line 180 of file MachineRegisterInfo.h.
Referenced by llvm::BranchFolder::OptimizeFunction().
| bool llvm::MachineRegisterInfo::isAllocatable | ( | unsigned | PhysReg | ) | const [inline] |
isAllocatable - Returns true when PhysReg belongs to an allocatable register class and it hasn't been reserved.
Allocatable registers may show up in the allocation order of some virtual register, so a register allocator needs to track its liveness and availability.
Definition at line 732 of file MachineRegisterInfo.h.
References getTargetRegisterInfo(), llvm::TargetRegisterInfo::isInAllocatableClass(), and isReserved().
Referenced by llvm::CriticalAntiDepBreaker::BreakAntiDependencies(), llvm::AggressiveAntiDepBreaker::BreakAntiDependencies(), llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), and isConstantPhysReg().
| bool MachineRegisterInfo::isConstantPhysReg | ( | unsigned | PhysReg, |
| const MachineFunction & | MF | ||
| ) | const |
isConstantPhysReg - Returns true if PhysReg is unallocatable and constant throughout the function. It is safe to move instructions that read such a physreg.
Definition at line 407 of file MachineRegisterInfo.cpp.
References def_empty(), getTargetRegisterInfo(), isAllocatable(), llvm::TargetRegisterInfo::isPhysicalRegister(), and llvm::MCRegAliasIterator::isValid().
| bool MachineRegisterInfo::isLiveIn | ( | unsigned | Reg | ) | const |
Definition at line 337 of file MachineRegisterInfo.cpp.
References I, livein_begin(), and livein_end().
Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue(), llvm::X86FrameLowering::adjustForSegmentedStacks(), llvm::AMDGPUTargetLowering::CreateLiveInRegister(), getPrologueDeath(), and llvm::Thumb1FrameLowering::spillCalleeSavedRegisters().
| bool llvm::MachineRegisterInfo::isPhysRegUsed | ( | unsigned | Reg | ) | const [inline] |
isPhysRegUsed - Return true if the specified register is used in this function. Also check for clobbered aliases and registers clobbered by function calls with register mask operands.
This only works after register allocation. It is primarily used by PrologEpilogInserter to determine which callee-saved registers need spilling.
Definition at line 638 of file MachineRegisterInfo.h.
References getTargetRegisterInfo(), llvm::MCRegisterInfo::DiffListIterator::isValid(), and llvm::BitVector::test().
Referenced by checkNumAlignedDPRCS2Regs(), llvm::Thumb1FrameLowering::emitEpilogue(), llvm::ARMFrameLowering::emitEpilogue(), findUnusedVGPR(), HandleVRSaveUpdate(), llvm::SystemZFrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::PPCFrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::XCoreFrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::ARMFrameLowering::processFunctionBeforeCalleeSavedScan(), and verifyLeafProcRegUse().
| bool llvm::MachineRegisterInfo::isReserved | ( | unsigned | PhysReg | ) | const [inline] |
isReserved - Returns true when PhysReg is a reserved register.
Reserved registers may belong to an allocatable register class, but the target has explicitly requested that they are not used.
Definition at line 722 of file MachineRegisterInfo.h.
References getReservedRegs(), and llvm::BitVector::test().
Referenced by llvm::PBQPBuilder::build(), llvm::ScheduleDAGInstrs::fixupKills(), llvm::ARMBaseRegisterInfo::getRegAllocationHints(), llvm::TargetRegisterInfo::getRegAllocationHints(), isAllocatable(), and llvm::ARMFrameLowering::processFunctionBeforeCalleeSavedScan().
| bool llvm::MachineRegisterInfo::isSSA | ( | ) | const [inline] |
Definition at line 160 of file MachineRegisterInfo.h.
Referenced by foldImmediates(), llvm::MachineFunction::print(), and llvm::LiveVariables::runOnMachineFunction().
| void llvm::MachineRegisterInfo::leaveSSA | ( | ) | [inline] |
Definition at line 163 of file MachineRegisterInfo.h.
| livein_iterator llvm::MachineRegisterInfo::livein_begin | ( | ) | const [inline] |
Definition at line 751 of file MachineRegisterInfo.h.
Referenced by checkFnHasLiveInYmm(), llvm::AMDGPUInstrInfo::getIndirectIndexBegin(), getLiveInPhysReg(), getLiveInVirtReg(), HandleVRSaveUpdate(), isEAXLiveIn(), isLiveIn(), llvm::MachineFunction::print(), and llvm::SelectionDAGISel::runOnMachineFunction().
| bool llvm::MachineRegisterInfo::livein_empty | ( | ) | const [inline] |
Definition at line 753 of file MachineRegisterInfo.h.
Referenced by llvm::AMDGPUInstrInfo::getIndirectIndexBegin(), and llvm::MachineFunction::print().
| livein_iterator llvm::MachineRegisterInfo::livein_end | ( | ) | const [inline] |
Definition at line 752 of file MachineRegisterInfo.h.
Referenced by checkFnHasLiveInYmm(), llvm::AMDGPUInstrInfo::getIndirectIndexBegin(), getLiveInPhysReg(), getLiveInVirtReg(), HandleVRSaveUpdate(), isEAXLiveIn(), isLiveIn(), llvm::MachineFunction::print(), and llvm::SelectionDAGISel::runOnMachineFunction().
| void MachineRegisterInfo::markUsesInDebugValueAsUndef | ( | unsigned | Reg | ) | const |
markUsesInDebugValueAsUndef - Mark every DBG_VALUE referencing the specified register as undefined which causes the DBG_VALUE to be deleted during LiveDebugVariables analysis.
Definition at line 423 of file MachineRegisterInfo.cpp.
References llvm::MachineInstr::getOperand(), I, llvm::MachineInstr::isDebugValue(), llvm::MachineOperand::setReg(), use_instr_begin(), and use_instr_end().
Referenced by llvm::MachineInstr::eraseFromParentAndMarkDBGValuesForRemoval().
| void MachineRegisterInfo::moveOperands | ( | MachineOperand * | Dst, |
| MachineOperand * | Src, | ||
| unsigned | NumOps | ||
| ) |
Move NumOps operands from Src to Dst, updating use-def lists as needed.
The Dst range is assumed to be uninitialized memory. (Or it may contain operands that won't be destroyed, which is OK because the MO destructor is trivial anyway).
The Src and Dst ranges may overlap.
Definition at line 235 of file MachineRegisterInfo.cpp.
References llvm::MachineOperand::getReg(), llvm::MachineOperand::isReg(), and llvm::MachineOperand::Reg.
| bool MachineRegisterInfo::recomputeRegClass | ( | unsigned | Reg, |
| const TargetMachine & | TM | ||
| ) |
recomputeRegClass - Try to find a legal super-class of Reg's register class that still satisfies the constraints from the instructions using Reg. Returns true if Reg was upgraded.
This method can be used after constraints have been removed from a virtual register, for example after removing instructions or splitting the live range.
Definition at line 63 of file MachineRegisterInfo.cpp.
References llvm::TargetSubtargetInfo::getInstrInfo(), llvm::TargetRegisterInfo::getLargestLegalSuperClass(), llvm::MachineInstr::getOperand(), getRegClass(), llvm::MachineInstr::getRegClassConstraintEffect(), llvm::TargetMachine::getSubtargetImpl(), getTargetRegisterInfo(), llvm::AArch64CC::MI, reg_nodbg_operands(), setRegClass(), and TII.
Referenced by llvm::LiveRangeEdit::calculateRegClassAndHint().
| reg_iterator llvm::MachineRegisterInfo::reg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 223 of file MachineRegisterInfo.h.
Referenced by llvm::ConnectedVNInfoEqClasses::Distribute(), reg_empty(), reg_operands(), replaceRegWith(), and llvm::FastISel::tryToFoldLoad().
| reg_bundle_iterator llvm::MachineRegisterInfo::reg_bundle_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 253 of file MachineRegisterInfo.h.
Referenced by reg_bundles().
| static reg_bundle_iterator llvm::MachineRegisterInfo::reg_bundle_end | ( | ) | [inline, static] |
Definition at line 256 of file MachineRegisterInfo.h.
Referenced by reg_bundles().
| reg_bundle_nodbg_iterator llvm::MachineRegisterInfo::reg_bundle_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 309 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_bundles().
| static reg_bundle_nodbg_iterator llvm::MachineRegisterInfo::reg_bundle_nodbg_end | ( | ) | [inline, static] |
Definition at line 312 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_bundles().
| iterator_range<reg_bundle_iterator> llvm::MachineRegisterInfo::reg_bundles | ( | unsigned | Reg | ) | const [inline] |
Definition at line 260 of file MachineRegisterInfo.h.
References reg_bundle_begin(), and reg_bundle_end().
| bool llvm::MachineRegisterInfo::reg_empty | ( | unsigned | RegNo | ) | const [inline] |
reg_empty - Return true if there are no instructions using or defining the specified register (it may be live-in).
Definition at line 267 of file MachineRegisterInfo.h.
References reg_begin(), and reg_end().
| static reg_iterator llvm::MachineRegisterInfo::reg_end | ( | ) | [inline, static] |
Definition at line 226 of file MachineRegisterInfo.h.
Referenced by llvm::ConnectedVNInfoEqClasses::Distribute(), reg_empty(), reg_operands(), and replaceRegWith().
| reg_instr_iterator llvm::MachineRegisterInfo::reg_instr_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 236 of file MachineRegisterInfo.h.
Referenced by llvm::RegAllocBase::allocatePhysRegs(), llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), reg_instructions(), llvm::LiveIntervals::shrinkToUses(), and usesTheStack().
| static reg_instr_iterator llvm::MachineRegisterInfo::reg_instr_end | ( | ) | [inline, static] |
Definition at line 239 of file MachineRegisterInfo.h.
Referenced by llvm::RegAllocBase::allocatePhysRegs(), llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), reg_instructions(), llvm::LiveIntervals::shrinkToUses(), and usesTheStack().
| reg_instr_nodbg_iterator llvm::MachineRegisterInfo::reg_instr_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 291 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_instructions().
| static reg_instr_nodbg_iterator llvm::MachineRegisterInfo::reg_instr_nodbg_end | ( | ) | [inline, static] |
Definition at line 294 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_instructions().
| iterator_range<reg_instr_iterator> llvm::MachineRegisterInfo::reg_instructions | ( | unsigned | Reg | ) | const [inline] |
Definition at line 244 of file MachineRegisterInfo.h.
References reg_instr_begin(), and reg_instr_end().
Referenced by llvm::findPHICopyInsertPoint().
| reg_nodbg_iterator llvm::MachineRegisterInfo::reg_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 273 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_empty(), and reg_nodbg_operands().
| iterator_range<reg_bundle_nodbg_iterator> llvm::MachineRegisterInfo::reg_nodbg_bundles | ( | unsigned | Reg | ) | const [inline] |
Definition at line 317 of file MachineRegisterInfo.h.
References reg_bundle_nodbg_begin(), and reg_bundle_nodbg_end().
| bool llvm::MachineRegisterInfo::reg_nodbg_empty | ( | unsigned | RegNo | ) | const [inline] |
reg_nodbg_empty - Return true if the only instructions using or defining Reg are Debug instructions.
Definition at line 324 of file MachineRegisterInfo.h.
References reg_nodbg_begin(), and reg_nodbg_end().
Referenced by llvm::LiveIntervals::addKillFlags(), and llvm::RegAllocBase::allocatePhysRegs().
| static reg_nodbg_iterator llvm::MachineRegisterInfo::reg_nodbg_end | ( | ) | [inline, static] |
Definition at line 276 of file MachineRegisterInfo.h.
Referenced by reg_nodbg_empty(), and reg_nodbg_operands().
| iterator_range<reg_instr_nodbg_iterator> llvm::MachineRegisterInfo::reg_nodbg_instructions | ( | unsigned | Reg | ) | const [inline] |
Definition at line 299 of file MachineRegisterInfo.h.
References reg_instr_nodbg_begin(), and reg_instr_nodbg_end().
| iterator_range<reg_nodbg_iterator> llvm::MachineRegisterInfo::reg_nodbg_operands | ( | unsigned | Reg | ) | const [inline] |
Definition at line 281 of file MachineRegisterInfo.h.
References reg_nodbg_begin(), and reg_nodbg_end().
Referenced by llvm::LiveRangeCalc::extendToUses(), and recomputeRegClass().
| iterator_range<reg_iterator> llvm::MachineRegisterInfo::reg_operands | ( | unsigned | Reg | ) | const [inline] |
Definition at line 228 of file MachineRegisterInfo.h.
References reg_begin(), and reg_end().
Referenced by verifyUseList().
Remove MO from its use-def list.
Definition at line 206 of file MachineRegisterInfo.cpp.
References llvm::MachineOperand::getReg(), and llvm::MachineOperand::Reg.
Referenced by llvm::MachineOperand::ChangeToRegister(), foldImmediates(), llvm::MachineInstr::RemoveOperand(), llvm::MachineOperand::setIsDef(), and llvm::MachineOperand::setReg().
| void MachineRegisterInfo::replaceRegWith | ( | unsigned | FromReg, |
| unsigned | ToReg | ||
| ) |
replaceRegWith - Replace all instances of FromReg with ToReg in the machine function. This is like llvm-level X->replaceAllUsesWith(Y), except that it also changes any definitions of the register as well.
Note that it is usually necessary to first constrain ToReg's register class to match the FromReg constraints using:
constrainRegClass(ToReg, getRegClass(FromReg))
That function will return NULL if the virtual registers have incompatible constraints.
Note that if ToReg is a physical register the function will replace and apply sub registers to ToReg in order to obtain a final/proper physical register.
replaceRegWith - Replace all instances of FromReg with ToReg in the machine function. This is like llvm-level X->replaceAllUsesWith(Y), except that it also changes any definitions of the register as well. If ToReg is a physical register we apply the sub register to obtain the final/proper physical register.
Definition at line 282 of file MachineRegisterInfo.cpp.
References getTargetRegisterInfo(), I, llvm::TargetRegisterInfo::isPhysicalRegister(), reg_begin(), reg_end(), llvm::MachineOperand::setReg(), and llvm::MachineOperand::substPhysReg().
Referenced by llvm::SIInstrInfo::moveSMRDToVALU(), llvm::SIInstrInfo::moveToVALU(), and llvm::SelectionDAGISel::runOnMachineFunction().
| bool llvm::MachineRegisterInfo::reservedRegsFrozen | ( | ) | const [inline] |
reservedRegsFrozen - Returns true after freezeReservedRegs() was called to ensure the set of reserved registers stays constant.
Definition at line 696 of file MachineRegisterInfo.h.
References llvm::BitVector::empty().
Referenced by canReserveReg(), and getReservedRegs().
| void llvm::MachineRegisterInfo::resetDelegate | ( | Delegate * | delegate | ) | [inline] |
Definition at line 132 of file MachineRegisterInfo.h.
Referenced by llvm::LiveRangeEdit::~LiveRangeEdit().
| void llvm::MachineRegisterInfo::setDelegate | ( | Delegate * | delegate | ) | [inline] |
Definition at line 141 of file MachineRegisterInfo.h.
Referenced by llvm::LiveRangeEdit::LiveRangeEdit().
| void llvm::MachineRegisterInfo::setPhysRegUnused | ( | unsigned | Reg | ) | [inline] |
setPhysRegUnused - Mark the specified register unused in this function. This should only be called during and after register allocation.
Definition at line 670 of file MachineRegisterInfo.h.
References getTargetRegisterInfo(), llvm::MCRegisterInfo::DiffListIterator::isValid(), and llvm::BitVector::reset().
Referenced by llvm::PPCFrameLowering::processFunctionBeforeCalleeSavedScan(), and llvm::XCoreFrameLowering::processFunctionBeforeCalleeSavedScan().
| void llvm::MachineRegisterInfo::setPhysRegUsed | ( | unsigned | Reg | ) | [inline] |
setPhysRegUsed - Mark the specified register used in this function. This should only be called during and after register allocation.
Definition at line 656 of file MachineRegisterInfo.h.
References getTargetRegisterInfo(), llvm::MCRegisterInfo::DiffListIterator::isValid(), and llvm::BitVector::set().
Referenced by llvm::X86FrameLowering::adjustForSegmentedStacks(), llvm::LiveRegMatrix::assign(), llvm::PBQPBuilder::build(), checkNumAlignedDPRCS2Regs(), llvm::SIMachineFunctionInfo::getSpilledReg(), llvm::SystemZFrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::MipsSEFrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::Mips16FrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::X86FrameLowering::processFunctionBeforeCalleeSavedScan(), and llvm::ARMFrameLowering::processFunctionBeforeCalleeSavedScan().
| void llvm::MachineRegisterInfo::setRegAllocationHint | ( | unsigned | Reg, |
| unsigned | Type, | ||
| unsigned | PrefReg | ||
| ) | [inline] |
setRegAllocationHint - Specify a register allocation hint for the specified virtual register.
Definition at line 603 of file MachineRegisterInfo.h.
References Type.
Referenced by llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), and llvm::ARMBaseRegisterInfo::UpdateRegAllocHint().
| void MachineRegisterInfo::setRegClass | ( | unsigned | Reg, |
| const TargetRegisterClass * | RC | ||
| ) |
setRegClass - Set the register class of the specified virtual register.
Definition at line 40 of file MachineRegisterInfo.cpp.
References llvm::TargetRegisterClass::isAllocatable().
Referenced by llvm::SITargetLowering::AdjustInstrPostInstrSelection(), constrainRegClass(), and recomputeRegClass().
| void llvm::MachineRegisterInfo::setRegUnitUsed | ( | unsigned | RegUnit | ) | [inline] |
Mark the specified register unit as used in this function. This should only be called during and after register allocation.
Definition at line 650 of file MachineRegisterInfo.h.
References llvm::BitVector::set().
| bool llvm::MachineRegisterInfo::tracksLiveness | ( | ) | const [inline] |
tracksLiveness - Returns true when tracking register liveness accurately.
While this flag is true, register liveness information in basic block live-in lists and machine instruction operands is accurate. This means it can be used to change the code in ways that affect the values in registers, for example by the register scavenger.
When this flag is false, liveness is no longer reliable.
Definition at line 173 of file MachineRegisterInfo.h.
Referenced by llvm::RegScavenger::enterBasicBlock(), llvm::BranchFolder::OptimizeFunction(), and llvm::MachineFunction::print().
| use_iterator llvm::MachineRegisterInfo::use_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 389 of file MachineRegisterInfo.h.
Referenced by hasOneUse(), llvm::SIInstrInfo::moveToVALU(), use_empty(), and use_operands().
| use_bundle_iterator llvm::MachineRegisterInfo::use_bundle_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 419 of file MachineRegisterInfo.h.
Referenced by use_bundles().
| static use_bundle_iterator llvm::MachineRegisterInfo::use_bundle_end | ( | ) | [inline, static] |
Definition at line 422 of file MachineRegisterInfo.h.
Referenced by use_bundles().
| use_bundle_nodbg_iterator llvm::MachineRegisterInfo::use_bundle_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 484 of file MachineRegisterInfo.h.
Referenced by use_nodbg_bundles().
| static use_bundle_nodbg_iterator llvm::MachineRegisterInfo::use_bundle_nodbg_end | ( | ) | [inline, static] |
Definition at line 487 of file MachineRegisterInfo.h.
Referenced by use_nodbg_bundles().
| iterator_range<use_bundle_iterator> llvm::MachineRegisterInfo::use_bundles | ( | unsigned | Reg | ) | const [inline] |
Definition at line 426 of file MachineRegisterInfo.h.
References use_bundle_begin(), and use_bundle_end().
| bool llvm::MachineRegisterInfo::use_empty | ( | unsigned | RegNo | ) | const [inline] |
use_empty - Return true if there are no instructions using the specified register.
Definition at line 433 of file MachineRegisterInfo.h.
References use_begin(), and use_end().
Referenced by llvm::R600TargetLowering::EmitInstrWithCustomInserter(), EmitLiveInCopies(), foldImmediates(), llvm::FastISel::hasTrivialKill(), and llvm::MachineInstr::print().
| static use_iterator llvm::MachineRegisterInfo::use_end | ( | ) | [inline, static] |
Definition at line 392 of file MachineRegisterInfo.h.
Referenced by hasOneUse(), llvm::SIInstrInfo::moveToVALU(), use_empty(), and use_operands().
| use_instr_iterator llvm::MachineRegisterInfo::use_instr_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 402 of file MachineRegisterInfo.h.
Referenced by markUsesInDebugValueAsUndef(), llvm::PPCInstrInfo::optimizeCompareInstr(), llvm::ARMBaseInstrInfo::optimizeCompareInstr(), llvm::SelectionDAGISel::runOnMachineFunction(), and use_instructions().
| static use_instr_iterator llvm::MachineRegisterInfo::use_instr_end | ( | ) | [inline, static] |
Definition at line 405 of file MachineRegisterInfo.h.
Referenced by markUsesInDebugValueAsUndef(), llvm::PPCInstrInfo::optimizeCompareInstr(), llvm::ARMBaseInstrInfo::optimizeCompareInstr(), llvm::SelectionDAGISel::runOnMachineFunction(), and use_instructions().
| use_instr_nodbg_iterator llvm::MachineRegisterInfo::use_instr_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 466 of file MachineRegisterInfo.h.
Referenced by findOnlyInterestingUse(), findUseBetween(), and use_nodbg_instructions().
| static use_instr_nodbg_iterator llvm::MachineRegisterInfo::use_instr_nodbg_end | ( | ) | [inline, static] |
Definition at line 469 of file MachineRegisterInfo.h.
Referenced by findUseBetween(), and use_nodbg_instructions().
| iterator_range<use_instr_iterator> llvm::MachineRegisterInfo::use_instructions | ( | unsigned | Reg | ) | const [inline] |
Definition at line 410 of file MachineRegisterInfo.h.
References use_instr_begin(), and use_instr_end().
Referenced by dumpUses(), and isDefLiveOut().
| use_nodbg_iterator llvm::MachineRegisterInfo::use_nodbg_begin | ( | unsigned | RegNo | ) | const [inline] |
Definition at line 448 of file MachineRegisterInfo.h.
Referenced by hasOneNonDBGUse(), use_nodbg_empty(), and use_nodbg_operands().
| iterator_range<use_bundle_nodbg_iterator> llvm::MachineRegisterInfo::use_nodbg_bundles | ( | unsigned | Reg | ) | const [inline] |
Definition at line 492 of file MachineRegisterInfo.h.
References use_bundle_nodbg_begin(), and use_bundle_nodbg_end().
| bool llvm::MachineRegisterInfo::use_nodbg_empty | ( | unsigned | RegNo | ) | const [inline] |
use_nodbg_empty - Return true if there are no non-Debug instructions using the specified register.
Definition at line 499 of file MachineRegisterInfo.h.
References use_nodbg_begin(), and use_nodbg_end().
Referenced by eraseIfDead(), and llvm::AArch64InstrInfo::optimizeCompareInstr().
| static use_nodbg_iterator llvm::MachineRegisterInfo::use_nodbg_end | ( | ) | [inline, static] |
Definition at line 451 of file MachineRegisterInfo.h.
Referenced by hasOneNonDBGUse(), use_nodbg_empty(), and use_nodbg_operands().
| iterator_range<use_instr_nodbg_iterator> llvm::MachineRegisterInfo::use_nodbg_instructions | ( | unsigned | Reg | ) | const [inline] |
Definition at line 474 of file MachineRegisterInfo.h.
References use_instr_nodbg_begin(), and use_instr_nodbg_end().
| iterator_range<use_nodbg_iterator> llvm::MachineRegisterInfo::use_nodbg_operands | ( | unsigned | Reg | ) | const [inline] |
Definition at line 456 of file MachineRegisterInfo.h.
References use_nodbg_begin(), and use_nodbg_end().
| iterator_range<use_iterator> llvm::MachineRegisterInfo::use_operands | ( | unsigned | Reg | ) | const [inline] |
Definition at line 394 of file MachineRegisterInfo.h.
References use_begin(), and use_end().
Referenced by clearKillFlags().
| void MachineRegisterInfo::verifyUseList | ( | unsigned | Reg | ) | const |
Verify the sanity of the use list for Reg.
Definition at line 120 of file MachineRegisterInfo.cpp.
References llvm::errs(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getParent(), llvm::MachineOperand::getReg(), getTargetRegisterInfo(), llvm::MachineOperand::isReg(), llvm::AArch64CC::MI, and reg_operands().
Referenced by clearVirtRegs(), and verifyUseLists().
| void MachineRegisterInfo::verifyUseLists | ( | ) | const |
Verify the use list of all registers.
Definition at line 157 of file MachineRegisterInfo.cpp.
References getNumVirtRegs(), getTargetRegisterInfo(), llvm::TargetRegisterInfo::index2VirtReg(), and verifyUseList().
friend class defusechain_instr_iterator [friend] |
Definition at line 215 of file MachineRegisterInfo.h.
friend class defusechain_iterator [friend] |
Definition at line 209 of file MachineRegisterInfo.h.
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