llvm::X86GenRegisterBankInfo Class Reference
#include "Target/X86/GISel/X86RegisterBankInfo.h"
Inheritance diagram for llvm::X86GenRegisterBankInfo:
Static Protected Member Functions | |
| static PartialMappingIdx | getPartialMappingIdx (const MachineInstr &MI, const LLT &Ty, bool isFP) |
| static const RegisterBankInfo::ValueMapping * | getValueMapping (PartialMappingIdx Idx, unsigned NumOperands) |
Static Protected Attributes | |
| static RegisterBankInfo::PartialMapping | PartMappings [] |
| static RegisterBankInfo::ValueMapping | ValMappings [] |
Additional Inherited Members | |
| Public Types inherited from llvm::RegisterBankInfo | |
| using | InstructionMappings = SmallVector<const InstructionMapping *, 4> |
| Convenient type to represent the alternatives for mapping an instruction. | |
| Public Member Functions inherited from llvm::RegisterBankInfo | |
| const RegisterBank * | getRegBankFromConstraints (const MachineInstr &MI, unsigned OpIdx, const TargetInstrInfo &TII, const MachineRegisterInfo &MRI) const |
Get the register bank for the OpIdx-th operand of MI form the encoding constraints, if any. | |
| virtual void | applyMappingImpl (MachineIRBuilder &Builder, const OperandsMapper &OpdMapper) const |
| See applyMapping. | |
| virtual | ~RegisterBankInfo ()=default |
| const RegisterBank & | getRegBank (unsigned ID) const |
Get the register bank identified by ID. | |
| unsigned | getMaximumSize (unsigned RegBankID) const |
| Get the maximum size in bits that fits in the given register bank. | |
| const RegisterBank * | getRegBank (Register Reg, const MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI) const |
Get the register bank of Reg. | |
| unsigned | getNumRegBanks () const |
| Get the total number of register banks. | |
| virtual bool | isDivergentRegBank (const RegisterBank *RB) const |
| Returns true if the register bank is considered divergent. | |
| virtual const RegisterBank & | getRegBankFromRegClass (const TargetRegisterClass &RC, LLT Ty) const |
Get a register bank that covers RC. | |
| virtual unsigned | copyCost (const RegisterBank &A, const RegisterBank &B, TypeSize Size) const |
Get the cost of a copy from B to A, or put differently, get the cost of A = COPY B. | |
| bool | cannotCopy (const RegisterBank &Dst, const RegisterBank &Src, TypeSize Size) const |
| virtual unsigned | getBreakDownCost (const ValueMapping &ValMapping, const RegisterBank *CurBank=nullptr) const |
Get the cost of using ValMapping to decompose a register. | |
| virtual const InstructionMapping & | getInstrMapping (const MachineInstr &MI) const |
Get the mapping of the different operands of MI on the register bank. | |
| virtual InstructionMappings | getInstrAlternativeMappings (const MachineInstr &MI) const |
Get the alternative mappings for MI. | |
| InstructionMappings | getInstrPossibleMappings (const MachineInstr &MI) const |
Get the possible mapping for MI. | |
| void | applyMapping (MachineIRBuilder &Builder, const OperandsMapper &OpdMapper) const |
Apply OpdMapper.getInstrMapping() to OpdMapper.getMI(). | |
| TypeSize | getSizeInBits (Register Reg, const MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI) const |
Get the size in bits of Reg. | |
| bool | verify (const TargetRegisterInfo &TRI) const |
Check that information hold by this instance make sense for the given TRI. | |
| const InstructionMapping & | getInstructionMapping (unsigned ID, unsigned Cost, const ValueMapping *OperandsMapping, unsigned NumOperands) const |
| Method to get a uniquely generated InstructionMapping. | |
| const InstructionMapping & | getInvalidInstructionMapping () const |
| Method to get a uniquely generated invalid InstructionMapping. | |
| Static Public Member Functions inherited from llvm::RegisterBankInfo | |
| static void | applyDefaultMapping (const OperandsMapper &OpdMapper) |
| Helper method to apply something that is like the default mapping. | |
| static const TargetRegisterClass * | constrainGenericRegister (Register Reg, const TargetRegisterClass &RC, MachineRegisterInfo &MRI) |
Constrain the (possibly generic) virtual register Reg to RC. | |
| Static Public Attributes inherited from llvm::RegisterBankInfo | |
| static const unsigned | DefaultMappingID = UINT_MAX |
| Identifier used when the related instruction mapping instance is generated by target independent code. | |
| static const unsigned | InvalidMappingID = UINT_MAX - 1 |
| Identifier used when the related instruction mapping instance is generated by the default constructor. | |
| Protected Member Functions inherited from llvm::RegisterBankInfo | |
| RegisterBankInfo (const RegisterBank **RegBanks, unsigned NumRegBanks, const unsigned *Sizes, unsigned HwMode) | |
Create a RegisterBankInfo that can accommodate up to NumRegBanks RegisterBank instances. | |
| RegisterBankInfo () | |
| This constructor is meaningless. | |
| const RegisterBank & | getRegBank (unsigned ID) |
Get the register bank identified by ID. | |
| const TargetRegisterClass * | getMinimalPhysRegClass (MCRegister Reg, const TargetRegisterInfo &TRI) const |
| Get the MinimalPhysRegClass for Reg. | |
| const InstructionMapping & | getInstrMappingImpl (const MachineInstr &MI) const |
Try to get the mapping of MI. | |
| const PartialMapping & | getPartialMapping (unsigned StartIdx, unsigned Length, const RegisterBank &RegBank) const |
| Get the uniquely generated PartialMapping for the given arguments. | |
| const ValueMapping & | getValueMapping (unsigned StartIdx, unsigned Length, const RegisterBank &RegBank) const |
| The most common ValueMapping consists of a single PartialMapping. | |
| const ValueMapping & | getValueMapping (const PartialMapping *BreakDown, unsigned NumBreakDowns) const |
| Get the ValueMapping for the given arguments. | |
| template<typename Iterator> | |
| const ValueMapping * | getOperandsMapping (Iterator Begin, Iterator End) const |
Get the uniquely generated array of ValueMapping for the elements of between Begin and End. | |
| const ValueMapping * | getOperandsMapping (const SmallVectorImpl< const ValueMapping * > &OpdsMapping) const |
Get the uniquely generated array of ValueMapping for the elements of OpdsMapping. | |
| const ValueMapping * | getOperandsMapping (std::initializer_list< const ValueMapping * > OpdsMapping) const |
| Get the uniquely generated array of ValueMapping for the given arguments. | |
| Protected Attributes inherited from llvm::RegisterBankInfo | |
| const RegisterBank ** | RegBanks |
| Hold the set of supported register banks. | |
| unsigned | NumRegBanks |
| Total number of register banks. | |
| const unsigned * | Sizes |
| Hold the sizes of the register banks for all HwModes. | |
| unsigned | HwMode |
| Current HwMode for the target. | |
| DenseMap< hash_code, std::unique_ptr< const PartialMapping > > | MapOfPartialMappings |
| Keep dynamically allocated PartialMapping in a separate map. | |
| DenseMap< hash_code, std::unique_ptr< const ValueMapping > > | MapOfValueMappings |
| Keep dynamically allocated ValueMapping in a separate map. | |
| DenseMap< hash_code, std::unique_ptr< ValueMapping[]> > | MapOfOperandsMappings |
| Keep dynamically allocated array of ValueMapping in a separate map. | |
| DenseMap< hash_code, std::unique_ptr< const InstructionMapping > > | MapOfInstructionMappings |
| Keep dynamically allocated InstructionMapping in a separate map. | |
| DenseMap< MCRegister, const TargetRegisterClass * > | PhysRegMinimalRCs |
| Getting the minimal register class of a physreg is expensive. | |
Detailed Description
Definition at line 25 of file X86RegisterBankInfo.h.
Member Function Documentation
◆ getPartialMappingIdx()
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staticprotected |
Definition at line 142 of file X86RegisterBankInfo.cpp.
References llvm::MachineFunction::getSubtarget(), llvm_unreachable, and MI.
Referenced by llvm::X86RegisterBankInfo::getInstrMapping().
◆ getValueMapping()
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staticprotected |
Referenced by llvm::X86RegisterBankInfo::getInstrMapping().
Member Data Documentation
◆ PartMappings
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staticprotected |
Definition at line 32 of file X86RegisterBankInfo.h.
◆ ValMappings
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staticprotected |
Definition at line 33 of file X86RegisterBankInfo.h.
The documentation for this class was generated from the following files:
- lib/Target/X86/GISel/X86RegisterBankInfo.h
- lib/Target/X86/GISel/X86RegisterBankInfo.cpp
Generated on for LLVM by
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