#include <CGFunctionInfo.h>

Collaboration diagram for clang::CodeGen::ABIArgInfo:

Public Types
enum	Kind { Direct, Extend, Indirect, Ignore, Expand, InAlloca, KindFirst = Direct, KindLast = InAlloca }
Public Member Functions
	ABIArgInfo ()
Kind	getKind () const
bool	isDirect () const
bool	isInAlloca () const
bool	isExtend () const
bool	isIgnore () const
bool	isIndirect () const
bool	isExpand () const
bool	canHaveCoerceToType () const
unsigned	getDirectOffset () const
void	setDirectOffset (unsigned Offset)
llvm::Type *	getPaddingType () const
void	setPaddingType (llvm::Type *T)
bool	getPaddingInReg () const
void	setPaddingInReg (bool PIR)
llvm::Type *	getCoerceToType () const
void	setCoerceToType (llvm::Type *T)
bool	getInReg () const
void	setInReg (bool IR)
unsigned	getIndirectAlign () const
void	setIndirectAlign (unsigned IA)
bool	getIndirectByVal () const
void	setIndirectByVal (unsigned IBV)
bool	getIndirectRealign () const
void	setIndirectRealign (bool IR)
bool	isSRetAfterThis () const
void	setSRetAfterThis (bool AfterThis)
unsigned	getInAllocaFieldIndex () const
void	setInAllocaFieldIndex (unsigned FieldIndex)
bool	getInAllocaSRet () const
	Return true if this field of an inalloca struct should be returned to implement a struct return calling convention.
void	setInAllocaSRet (bool SRet)
bool	getCanBeFlattened () const
void	setCanBeFlattened (bool Flatten)
void	dump () const
Static Public Member Functions
static ABIArgInfo	getDirect (llvm::Type T=nullptr, unsigned Offset=0, llvm::Type Padding=nullptr, bool CanBeFlattened=true)
static ABIArgInfo	getDirectInReg (llvm::Type *T=nullptr)
static ABIArgInfo	getExtend (llvm::Type *T=nullptr)
static ABIArgInfo	getExtendInReg (llvm::Type *T=nullptr)
static ABIArgInfo	getIgnore ()
static ABIArgInfo	getIndirect (unsigned Alignment, bool ByVal=true, bool Realign=false, llvm::Type *Padding=nullptr)
static ABIArgInfo	getIndirectInReg (unsigned Alignment, bool ByVal=true, bool Realign=false)
static ABIArgInfo	getInAlloca (unsigned FieldIndex)
static ABIArgInfo	getExpand ()
static ABIArgInfo	getExpandWithPadding (bool PaddingInReg, llvm::Type *Padding)

Detailed Description

ABIArgInfo - Helper class to encapsulate information about how a specific C type should be passed to or returned from a function.

Definition at line 36 of file CGFunctionInfo.h.

Member Enumeration Documentation

enum clang::CodeGen::ABIArgInfo::Kind

Enumerator:

Direct	Direct - Pass the argument directly using the normal converted LLVM type, or by coercing to another specified type stored in 'CoerceToType'). If an offset is specified (in UIntData), then the argument passed is offset by some number of bytes in the memory representation. A dummy argument is emitted before the real argument if the specified type stored in "PaddingType" is not zero.
Extend	Extend - Valid only for integer argument types. Same as 'direct' but also emit a zero/sign extension attribute.
Indirect	Indirect - Pass the argument indirectly via a hidden pointer with the specified alignment (0 indicates default alignment).
Ignore	Ignore - Ignore the argument (treat as void). Useful for void and empty structs.
Expand	Expand - Only valid for aggregate argument types. The structure should be expanded into consecutive arguments for its constituent fields. Currently expand is only allowed on structures whose fields are all scalar types or are themselves expandable types.
InAlloca	InAlloca - Pass the argument directly using the LLVM inalloca attribute. This is similar to 'direct', except it only applies to arguments stored in memory and forbids any implicit copies. When applied to a return type, it means the value is returned indirectly via an implicit sret parameter stored in the argument struct.
KindFirst
KindLast

Definition at line 38 of file CGFunctionInfo.h.

Constructor & Destructor Documentation

clang::CodeGen::ABIArgInfo::ABIArgInfo ( ) [inline]

Definition at line 96 of file CGFunctionInfo.h.

Referenced by getDirect(), getExpand(), getExtend(), getIgnore(), getInAlloca(), and getIndirect().

Member Function Documentation

bool clang::CodeGen::ABIArgInfo::canHaveCoerceToType ( ) const [inline]

Definition at line 170 of file CGFunctionInfo.h.

References isDirect(), and isExtend().

Referenced by clang::CodeGen::CodeGenTypes::arrangeLLVMFunctionInfo(), getCoerceToType(), and setCoerceToType().

void ABIArgInfo::dump ( ) const

Definition at line 110 of file CodeGen/TargetInfo.cpp.

References Direct, Expand, Extend, getCoerceToType(), getInAllocaFieldIndex(), getIndirectAlign(), getIndirectByVal(), getIndirectRealign(), Ignore, InAlloca, and Indirect.

bool clang::CodeGen::ABIArgInfo::getCanBeFlattened ( ) const [inline]

Definition at line 271 of file CGFunctionInfo.h.

References isDirect().

Referenced by clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitFunctionProlog(), and clang::CodeGen::CodeGenTypes::GetFunctionType().

llvm::Type* clang::CodeGen::ABIArgInfo::getCoerceToType ( ) const [inline]

Definition at line 193 of file CGFunctionInfo.h.

References canHaveCoerceToType().

Referenced by clang::CodeGen::CodeGenTypes::arrangeLLVMFunctionInfo(), dump(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitFunctionEpilog(), clang::CodeGen::CodeGenFunction::EmitFunctionProlog(), and clang::CodeGen::CodeGenTypes::GetFunctionType().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getDirect	(	llvm::Type *	T = `nullptr`,
		unsigned	Offset = `0`,
		llvm::Type *	Padding = `nullptr`,
		bool	CanBeFlattened = `true`
	)		`[inline, static]`

Definition at line 100 of file CGFunctionInfo.h.

References ABIArgInfo(), and Direct.

Referenced by getDirectInReg().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getDirectInReg ( llvm::Type * T = nullptr ) [inline, static]

Definition at line 110 of file CGFunctionInfo.h.

References getDirect().

unsigned clang::CodeGen::ABIArgInfo::getDirectOffset ( ) const [inline]

Definition at line 173 of file CGFunctionInfo.h.

References DirectOffset, isDirect(), and isExtend().

Referenced by clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitFunctionEpilog(), and clang::CodeGen::CodeGenFunction::EmitFunctionProlog().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getExpand ( ) [inline, static]

Definition at line 151 of file CGFunctionInfo.h.

References ABIArgInfo(), and Expand.

Referenced by getExpandWithPadding().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getExpandWithPadding	(	bool	PaddingInReg,
		llvm::Type *	Padding
	)		`[inline, static]`

Definition at line 154 of file CGFunctionInfo.h.

References getExpand().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getExtend ( llvm::Type * T = nullptr ) [inline, static]

Definition at line 115 of file CGFunctionInfo.h.

References ABIArgInfo(), and Extend.

Referenced by getExtendInReg().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getExtendInReg ( llvm::Type * T = nullptr ) [inline, static]

Definition at line 121 of file CGFunctionInfo.h.

References getExtend().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getIgnore ( ) [inline, static]

Definition at line 126 of file CGFunctionInfo.h.

References ABIArgInfo(), and Ignore.

static ABIArgInfo clang::CodeGen::ABIArgInfo::getInAlloca ( unsigned FieldIndex ) [inline, static]

Definition at line 146 of file CGFunctionInfo.h.

References ABIArgInfo(), and InAlloca.

unsigned clang::CodeGen::ABIArgInfo::getInAllocaFieldIndex ( ) const [inline]

Definition at line 250 of file CGFunctionInfo.h.

References AllocaFieldIndex, and isInAlloca().

Referenced by dump(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitFunctionEpilog(), clang::CodeGen::CodeGenFunction::EmitFunctionProlog(), and clang::CodeGen::CodeGenFunction::StartFunction().

bool clang::CodeGen::ABIArgInfo::getInAllocaSRet ( ) const [inline]

Return true if this field of an inalloca struct should be returned to implement a struct return calling convention.

Definition at line 261 of file CGFunctionInfo.h.

References isInAlloca().

Referenced by clang::CodeGen::CodeGenFunction::EmitFunctionEpilog(), and clang::CodeGen::CodeGenTypes::GetFunctionType().

static ABIArgInfo clang::CodeGen::ABIArgInfo::getIndirect	(	unsigned	Alignment,
		bool	ByVal = `true`,
		bool	Realign = `false`,
		llvm::Type *	Padding = `nullptr`
	)		`[inline, static]`