llvm::PBQPBuilder Class Reference

#include <RegAllocPBQP.h>

Inheritance diagram for llvm::PBQPBuilder:

List of all members.

Public Types
typedef std::set< unsigned >	RegSet
Public Member Functions
	PBQPBuilder ()
	Default constructor.
virtual	~PBQPBuilder ()
	Clean up a PBQPBuilder.
virtual std::unique_ptr < PBQPRAProblem >	build (MachineFunction *mf, const LiveIntervals *lis, const MachineBlockFrequencyInfo *mbfi, const RegSet &vregs)

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Detailed Description

Builds PBQP instances to represent register allocation problems. Includes spill, interference and coalescing costs by default. You can extend this class to support additional constraints for your architecture.

Definition at line 110 of file RegAllocPBQP.h.

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Member Typedef Documentation

typedef std::set<unsigned> llvm::PBQPBuilder::RegSet

Definition at line 116 of file RegAllocPBQP.h.

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Constructor & Destructor Documentation

llvm::PBQPBuilder::PBQPBuilder

(

)

[inline]

Default constructor.

Definition at line 119 of file RegAllocPBQP.h.

virtual llvm::PBQPBuilder::~PBQPBuilder

(

)

[inline, virtual]

Clean up a PBQPBuilder.

Definition at line 122 of file RegAllocPBQP.h.

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Member Function Documentation

std::unique_ptr< PBQPRAProblem > PBQPBuilder::build	(	MachineFunction *	mf,
		const LiveIntervals *	lis,
		const MachineBlockFrequencyInfo *	mbfi,
		const RegSet &	vregs
	)		[virtual]

Build a PBQP instance to represent the register allocation problem for the given MachineFunction.

Reimplemented in llvm::PBQPBuilderWithCoalescing.

Definition at line 187 of file RegAllocPBQP.cpp.

References llvm::LiveIntervals::checkRegMaskInterference(), llvm::MachineRegisterInfo::def_empty(), llvm::BitVector::empty(), llvm::LiveRange::empty(), llvm::LiveIntervals::getInterval(), llvm::MCRegisterInfo::getNumRegs(), llvm::TargetRegisterClass::getRawAllocationOrder(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::LiveIntervals::getRegUnit(), llvm::MachineFunction::getSubtarget(), llvm::MachineRegisterInfo::isReserved(), llvm::MCRegisterInfo::DiffListIterator::isValid(), llvm::LiveRange::overlaps(), llvm::MachineRegisterInfo::setPhysRegUsed(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::ArrayRef< T >::size(), llvm::BitVector::test(), and llvm::LiveInterval::weight.

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The documentation for this class was generated from the following files:

• RegAllocPBQP.h
• RegAllocPBQP.cpp