#include <HexagonCallingConvLower.h>

Public Member Functions
	Hexagon_CCState (CallingConv::ID CC, bool isVarArg, const TargetMachine &TM, SmallVector< CCValAssign, 16 > &locs, LLVMContext &c)
void	addLoc (const CCValAssign &V)
LLVMContext &	getContext () const
const TargetMachine &	getTarget () const
unsigned	getCallingConv () const
bool	isVarArg () const
unsigned	getNextStackOffset () const
bool	isAllocated (unsigned Reg) const
void	AnalyzeFormalArguments (const SmallVectorImpl< ISD::InputArg > &Ins, Hexagon_CCAssignFn Fn, unsigned SretValueInRegs)
void	AnalyzeReturn (const SmallVectorImpl< ISD::OutputArg > &Outs, Hexagon_CCAssignFn Fn, unsigned SretValueInRegs)
void	AnalyzeCallOperands (const SmallVectorImpl< ISD::OutputArg > &Outs, Hexagon_CCAssignFn Fn, int NonVarArgsParams, unsigned SretValueSize)
void	AnalyzeCallOperands (SmallVectorImpl< EVT > &ArgVTs, SmallVectorImpl< ISD::ArgFlagsTy > &Flags, Hexagon_CCAssignFn Fn)
void	AnalyzeCallResult (const SmallVectorImpl< ISD::InputArg > &Ins, Hexagon_CCAssignFn Fn, unsigned SretValueInRegs)
void	AnalyzeCallResult (EVT VT, Hexagon_CCAssignFn Fn)
unsigned	getFirstUnallocated (const unsigned *Regs, unsigned NumRegs) const
unsigned	AllocateReg (unsigned Reg)
unsigned	AllocateReg (unsigned Reg, unsigned ShadowReg)
	Version of AllocateReg with extra register to be shadowed.
unsigned	AllocateReg (const unsigned *Regs, unsigned NumRegs)
unsigned	AllocateReg (const unsigned Regs, const unsigned ShadowRegs, unsigned NumRegs)
	Version of AllocateReg with list of registers to be shadowed.
unsigned	AllocateStack (unsigned Size, unsigned Align)
void	HandleByVal (unsigned ValNo, EVT ValVT, EVT LocVT, CCValAssign::LocInfo LocInfo, int MinSize, int MinAlign, ISD::ArgFlagsTy ArgFlags)

Detailed Description

CCState - This class holds information needed while lowering arguments and return values. It captures which registers are already assigned and which stack slots are used. It provides accessors to allocate these values.

Definition at line 47 of file HexagonCallingConvLower.h.

Constructor & Destructor Documentation

Hexagon_CCState::Hexagon_CCState	(	CallingConv::ID	CC,
		bool	isVarArg,
		const TargetMachine &	TM,
		SmallVector< CCValAssign, 16 > &	locs,
		LLVMContext &	c
	)

Definition at line 26 of file HexagonCallingConvLower.cpp.

References llvm::MCRegisterInfo::getNumRegs(), and llvm::SmallVectorImpl< T >::resize().

Member Function Documentation

void llvm::Hexagon_CCState::addLoc ( const CCValAssign & V ) [inline]

Definition at line 61 of file HexagonCallingConvLower.h.

References llvm::SmallVectorTemplateBase< T, isPodLike >::push_back().

Referenced by AnalyzeReturn(), and HandleByVal().

unsigned llvm::Hexagon_CCState::AllocateReg ( unsigned Reg ) [inline]

AllocateReg - Attempt to allocate one register. If it is not available, return zero. Otherwise, return the register, marking it and any aliases as allocated.

Definition at line 121 of file HexagonCallingConvLower.h.

References isAllocated().

unsigned llvm::Hexagon_CCState::AllocateReg	(	unsigned	Reg,
		unsigned	ShadowReg
	)		`[inline]`

Version of AllocateReg with extra register to be shadowed.

Definition at line 128 of file HexagonCallingConvLower.h.

References isAllocated().

unsigned llvm::Hexagon_CCState::AllocateReg	(	const unsigned *	Regs,
		unsigned	NumRegs
	)		`[inline]`

AllocateReg - Attempt to allocate one of the specified registers. If none are available, return zero. Otherwise, return the first one available, marking it and any aliases as allocated.

Definition at line 138 of file HexagonCallingConvLower.h.

References getFirstUnallocated().

unsigned llvm::Hexagon_CCState::AllocateReg	(	const unsigned *	Regs,
		const unsigned *	ShadowRegs,
		unsigned	NumRegs
	)		`[inline]`

Version of AllocateReg with list of registers to be shadowed.

Definition at line 150 of file HexagonCallingConvLower.h.

References getFirstUnallocated().

unsigned llvm::Hexagon_CCState::AllocateStack	(	unsigned	Size,
		unsigned	Align
	)		`[inline]`

AllocateStack - Allocate a chunk of stack space with the specified size and alignment.

Definition at line 165 of file HexagonCallingConvLower.h.

Referenced by HandleByVal().

void Hexagon_CCState::AnalyzeCallOperands	(	const SmallVectorImpl< ISD::OutputArg > &	Outs,
		Hexagon_CCAssignFn	Fn,
		int	NonVarArgsParams,
		unsigned	SretValueSize
	)

AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info about the passed values into this state.

Definition at line 131 of file HexagonCallingConvLower.cpp.

References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

void Hexagon_CCState::AnalyzeCallOperands	(	SmallVectorImpl< EVT > &	ArgVTs,
		SmallVectorImpl< ISD::ArgFlagsTy > &	Flags,
		Hexagon_CCAssignFn	Fn
	)

AnalyzeCallOperands - Same as above except it takes vectors of types and argument flags.

Definition at line 161 of file HexagonCallingConvLower.cpp.

References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), and llvm::SmallVectorTemplateCommon< T >::size().

void Hexagon_CCState::AnalyzeCallResult	(	const SmallVectorImpl< ISD::InputArg > &	Ins,
		Hexagon_CCAssignFn	Fn,
		unsigned	SretValueInRegs
	)

AnalyzeCallResult - Analyze the return values of an ISD::CALL node, incorporating info about the passed values into this state.

Definition at line 180 of file HexagonCallingConvLower.cpp.

References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

void Hexagon_CCState::AnalyzeCallResult	(	EVT	VT,
		Hexagon_CCAssignFn	Fn
	)

AnalyzeCallResult - Same as above except it's specialized for calls which produce a single value.

Definition at line 197 of file HexagonCallingConvLower.cpp.

References llvm::dbgs(), llvm::CCValAssign::Full, and llvm::EVT::getEVTString().

void Hexagon_CCState::AnalyzeFormalArguments	(	const SmallVectorImpl< ISD::InputArg > &	Ins,
		Hexagon_CCAssignFn	Fn,
		unsigned	SretValueInRegs
	)

AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node, incorporating info about the formals into this state.

Definition at line 66 of file HexagonCallingConvLower.cpp.

References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

void Hexagon_CCState::AnalyzeReturn	(	const SmallVectorImpl< ISD::OutputArg > &	Outs,
		Hexagon_CCAssignFn	Fn,
		unsigned	SretValueInRegs
	)

AnalyzeReturn - Analyze the returned values of an ISD::RET node, incorporating info about the result values into this state.

Definition at line 94 of file HexagonCallingConvLower.cpp.

References addLoc(), llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm::CCValAssign::getReg(), llvm::MVT::i32, llvm::MVT::i64, and llvm::SmallVectorTemplateCommon< T, typename >::size().

unsigned llvm::Hexagon_CCState::getCallingConv ( ) const [inline]

Definition at line 67 of file HexagonCallingConvLower.h.

LLVMContext& llvm::Hexagon_CCState::getContext ( ) const [inline]

Definition at line 65 of file HexagonCallingConvLower.h.

unsigned llvm::Hexagon_CCState::getFirstUnallocated	(	const unsigned *	Regs,
		unsigned	NumRegs
	)		const `[inline]`

getFirstUnallocated - Return the first unallocated register in the set, or NumRegs if they are all allocated.

Definition at line 111 of file HexagonCallingConvLower.h.

References isAllocated().

Referenced by AllocateReg().

unsigned llvm::Hexagon_CCState::getNextStackOffset ( ) const [inline]

Definition at line 70 of file HexagonCallingConvLower.h.

const TargetMachine& llvm::Hexagon_CCState::getTarget ( ) const [inline]

Definition at line 66 of file HexagonCallingConvLower.h.

void Hexagon_CCState::HandleByVal	(	unsigned	ValNo,
		EVT	ValVT,
		EVT	LocVT,
		CCValAssign::LocInfo	LocInfo,
		int	MinSize,
		int	MinAlign,
		ISD::ArgFlagsTy	ArgFlags
	)

Definition at line 41 of file HexagonCallingConvLower.cpp.

References addLoc(), Align(), AllocateStack(), llvm::ISD::ArgFlagsTy::getByValAlign(), llvm::ISD::ArgFlagsTy::getByValSize(), llvm::CCValAssign::getMem(), llvm::EVT::getSimpleVT(), and llvm::MinAlign().

bool llvm::Hexagon_CCState::isAllocated ( unsigned Reg ) const [inline]

isAllocated - Return true if the specified register (or an alias) is allocated.

Definition at line 74 of file HexagonCallingConvLower.h.

Referenced by AllocateReg(), and getFirstUnallocated().

bool llvm::Hexagon_CCState::isVarArg ( ) const [inline]

Definition at line 68 of file HexagonCallingConvLower.h.

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

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation