Self-consistent classification that conforms to no particular ABI. More...

#include "llvm/ABI/DefaultTargetInfo.h"

Inheritance diagram for llvm::abi::DefaultTargetInfo:

Public Member Functions
ArgInfo	classifyArgumentType (const Type *Ty) const
ArgInfo	classifyReturnType (const Type *RetTy) const
void	computeInfo (FunctionInfo &FI) const override
	Populate FI with the target's ABI-lowering decisions for each argument and return value.
	TargetInfo (TypeBuilder &Builder)
Public Member Functions inherited from llvm::abi::TargetInfo
	TargetInfo (TypeBuilder &Builder)
virtual	~TargetInfo ()=default
virtual bool	isPassByRef (const Type *Ty) const
virtual const ABICompatInfo &	getABICompatInfo () const =0
	Return this target's ABI compatibility flags.
virtual unsigned	getAllocaAddrSpace () const
	Address space in which indirect arguments are allocated (the target's alloca/stack space).
virtual bool	hasInt128Type () const
	Whether the target has a 128-bit integer type. Default true.
virtual unsigned	getLongLongWidth () const
	Width of long long in bits. Default 64.

Additional Inherited Members
Protected Member Functions inherited from llvm::abi::TargetInfo
LLVM_ABI RecordArgABI	getRecordArgABI (const RecordType *RT) const
LLVM_ABI RecordArgABI	getRecordArgABI (const Type *Ty) const
LLVM_ABI bool	isPromotableInteger (const IntegerType *IT) const
unsigned	getBitIntRegThreshold () const
	Bit width above which a _BitInt cannot stay in registers.
LLVM_ABI ArgInfo	getNaturalAlignIndirect (const Type *Ty, unsigned AddrSpace, bool ByVal=true) const
LLVM_ABI bool	isAggregateTypeForABI (const Type *Ty) const
LLVM_ABI const Type *	useFirstFieldIfTransparentUnion (const Type *Ty) const
	If Ty is a transparent union, return its first field type; otherwise return Ty unchanged.
LLVM_ABI const Type *	isSingleElementStruct (const Type *Ty) const
	Returns the scalar a single-element struct reduces to, else null.
LLVM_ABI bool	maybeCommonClassifyReturnType (FunctionInfo &FI) const
	Apply rules for classifying return types that are common to all targets.
virtual bool	isHomogeneousAggregateBaseType (const Type *Ty) const
	Return true if `Ty` is a valid base type for a homogeneous aggregate.
virtual bool	isHomogeneousAggregateSmallEnough (const Type *Base, uint64_t Members) const
	Return true if a homogeneous aggregate with `Members` copies of `Base` is small enough to be passed in registers for this ABI.
virtual bool	isZeroLengthBitfieldPermittedInHomogeneousAggregate () const
	Return true if zero-length bitfields should be ignored when deciding whether an aggregate is homogeneous.
virtual bool	isPermittedToBeHomogeneousAggregate (const RecordType *RT) const
	Return true if the C++ ABI permits `RT` to be a homogeneous aggregate.
LLVM_ABI bool	isHomogeneousAggregate (const Type Ty, const Type &Base, uint64_t &Members) const
	Return true if `Ty` is an ELFv2-style homogeneous aggregate.
Protected Attributes inherited from llvm::abi::TargetInfo
TypeBuilder &	TB

Detailed Description

Self-consistent classification that conforms to no particular ABI.

Definition at line 25 of file DefaultTargetInfo.h.

Member Function Documentation

◆ classifyArgumentType()

ArgInfo DefaultTargetInfo::classifyArgumentType ( const Type * Ty ) const

Definition at line 15 of file DefaultTargetInfo.cpp.

References llvm::dyn_cast(), llvm::abi::TargetInfo::getAllocaAddrSpace(), llvm::abi::TargetInfo::getBitIntRegThreshold(), llvm::abi::ArgInfo::getDirect(), llvm::abi::ArgInfo::getExtend(), llvm::abi::TargetInfo::getNaturalAlignIndirect(), llvm::abi::TargetInfo::getRecordArgABI(), llvm::abi::TargetInfo::isAggregateTypeForABI(), llvm::abi::TargetInfo::isPromotableInteger(), IT, llvm::abi::RAA_DirectInMemory, and llvm::abi::TargetInfo::useFirstFieldIfTransparentUnion().

Referenced by computeInfo().

◆ classifyReturnType()

ArgInfo DefaultTargetInfo::classifyReturnType ( const Type * RetTy ) const

Definition at line 39 of file DefaultTargetInfo.cpp.

References llvm::dyn_cast(), llvm::abi::TargetInfo::getAllocaAddrSpace(), llvm::abi::TargetInfo::getBitIntRegThreshold(), llvm::abi::ArgInfo::getDirect(), llvm::abi::ArgInfo::getExtend(), llvm::abi::ArgInfo::getIgnore(), llvm::abi::TargetInfo::getNaturalAlignIndirect(), llvm::abi::TargetInfo::isAggregateTypeForABI(), llvm::abi::TargetInfo::isPromotableInteger(), llvm::abi::Type::isVoid(), and IT.

Referenced by computeInfo().

◆ computeInfo()

void DefaultTargetInfo::computeInfo ( FunctionInfo & FI ) const

overridevirtual

Populate FI with the target's ABI-lowering decisions for each argument and return value.

Implements llvm::abi::TargetInfo.

Definition at line 58 of file DefaultTargetInfo.cpp.

References llvm::abi::FunctionInfo::arguments(), classifyArgumentType(), classifyReturnType(), llvm::abi::FunctionInfo::getReturnInfo(), llvm::abi::FunctionInfo::getReturnType(), I, and llvm::abi::TargetInfo::maybeCommonClassifyReturnType().

◆ TargetInfo()

llvm::abi::TargetInfo::TargetInfo ( TypeBuilder & Builder )

inlineexplicit

Definition at line 70 of file TargetInfo.h.

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

include/llvm/ABI/DefaultTargetInfo.h
lib/ABI/DefaultTargetInfo.cpp