llvm::AllocationOrder Class Reference

#include "CodeGen/AllocationOrder.h"

Classes
class	Iterator
	Forward iterator for an AllocationOrder. More...

Public Member Functions
	AllocationOrder (SmallVector< MCPhysReg, 16 > &&Hints, ArrayRef< MCPhysReg > Order, bool HardHints)
	Create an AllocationOrder given the Hits, Order, and HardHits values.
Iterator	begin () const
Iterator	end () const
Iterator	getOrderLimitEnd (unsigned OrderLimit) const
ArrayRef< MCPhysReg >	getOrder () const
	Get the allocation order without reordered hints.
bool	isHint (Register Reg) const
	Return true if Reg is a preferred physical register.

Static Public Member Functions
static AllocationOrder	create (unsigned VirtReg, const VirtRegMap &VRM, const RegisterClassInfo &RegClassInfo, const LiveRegMatrix *Matrix)
	Create a new AllocationOrder for VirtReg.

Detailed Description

Definition at line 30 of file AllocationOrder.h.

Constructor & Destructor Documentation

AllocationOrder()

llvm::AllocationOrder::AllocationOrder ( SmallVector< MCPhysReg, 16 > &&  Hints, ArrayRef< MCPhysReg >  Order, bool  HardHints  )

inline

Create an AllocationOrder given the Hits, Order, and HardHits values.

Use the create method above - the ctor is for unittests.

Definition at line 90 of file AllocationOrder.h.

References llvm::move(), and llvm::size().

Member Function Documentation

begin()

Iterator llvm::AllocationOrder::begin ( ) const

inline

Definition at line 95 of file AllocationOrder.h.

create()

AllocationOrder AllocationOrder::create ( unsigned  VirtReg, const VirtRegMap &  VRM, const RegisterClassInfo &  RegClassInfo, const LiveRegMatrix *  Matrix  )

static

Create a new AllocationOrder for VirtReg.

Parameters

VirtReg	Virtual register to allocate for.
VRM	Virtual register map for function.
RegClassInfo	Information about reserved and allocatable registers.

Definition at line 29 of file AllocationOrder.cpp.

References llvm::all_of(), assert(), llvm::SmallVectorBase< Size_T >::empty(), llvm::VirtRegMap::getMachineFunction(), llvm::RegisterClassInfo::getOrder(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::VirtRegMap::getTargetRegInfo(), llvm::is_contained(), LLVM_DEBUG, Matrix, and TRI.

Referenced by llvm::RegAllocEvictionAdvisor::canReassign().

end()

Iterator llvm::AllocationOrder::end ( ) const

inline

Definition at line 99 of file AllocationOrder.h.

getOrder()

ArrayRef< MCPhysReg > llvm::AllocationOrder::getOrder ( ) const

inline

Get the allocation order without reordered hints.

Definition at line 111 of file AllocationOrder.h.

Referenced by llvm::RegAllocEvictionAdvisor::getOrderLimit().

getOrderLimitEnd()

Iterator llvm::AllocationOrder::getOrderLimitEnd ( unsigned  OrderLimit ) const

inline

Definition at line 101 of file AllocationOrder.h.

References assert(), and llvm::ArrayRef< T >::size().

isHint()

bool llvm::AllocationOrder::isHint ( Register  Reg ) const

inline

Return true if Reg is a preferred physical register.

Definition at line 114 of file AllocationOrder.h.

References assert(), llvm::is_contained(), and Reg.

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

• lib/CodeGen/AllocationOrder.h
• lib/CodeGen/AllocationOrder.cpp