clang 20.0.0git
Public Member Functions | Protected Attributes | List of all members
clang::CodeGen::ABIInfo Class Referenceabstract

ABIInfo - Target specific hooks for defining how a type should be passed or returned from functions. More...

#include "/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/CodeGen/ABIInfo.h"

Inheritance diagram for clang::CodeGen::ABIInfo:
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Public Member Functions

 ABIInfo (CodeGen::CodeGenTypes &cgt)
 
virtual ~ABIInfo ()
 
virtual bool allowBFloatArgsAndRet () const
 
CodeGen::CGCXXABI & getCXXABI () const
 
ASTContext & getContext () const
 
llvm::LLVMContext & getVMContext () const
 
const llvm::DataLayout & getDataLayout () const
 
const TargetInfo & getTarget () const
 
const CodeGenOptions & getCodeGenOpts () const
 
llvm::CallingConv::ID getRuntimeCC () const
 Return the calling convention to use for system runtime functions.
 
virtual void computeInfo (CodeGen::CGFunctionInfo &FI) const =0
 
virtual RValue EmitVAArg (CodeGen::CodeGenFunction &CGF, CodeGen::Address VAListAddr, QualType Ty, AggValueSlot Slot) const =0
 EmitVAArg - Emit the target dependent code to load a value of.
 
bool isAndroid () const
 
bool isOHOSFamily () const
 
virtual RValue EmitMSVAArg (CodeGen::CodeGenFunction &CGF, CodeGen::Address VAListAddr, QualType Ty, AggValueSlot Slot) const
 Emit the target dependent code to load a value of.
 
virtual bool isHomogeneousAggregateBaseType (QualType Ty) const
 
virtual bool isHomogeneousAggregateSmallEnough (const Type *Base, uint64_t Members) const
 
virtual bool isZeroLengthBitfieldPermittedInHomogeneousAggregate () const
 
bool isHomogeneousAggregate (QualType Ty, const Type *&Base, uint64_t &Members) const
 isHomogeneousAggregate - Return true if a type is an ELFv2 homogeneous aggregate.
 
bool isPromotableIntegerTypeForABI (QualType Ty) const
 
CodeGen::ABIArgInfo getNaturalAlignIndirect (QualType Ty, bool ByVal=true, bool Realign=false, llvm::Type *Padding=nullptr) const
 A convenience method to return an indirect ABIArgInfo with an expected alignment equal to the ABI alignment of the given type.
 
CodeGen::ABIArgInfo getNaturalAlignIndirectInReg (QualType Ty, bool Realign=false) const
 
virtual void appendAttributeMangling (TargetAttr *Attr, raw_ostream &Out) const
 
virtual void appendAttributeMangling (TargetVersionAttr *Attr, raw_ostream &Out) const
 
virtual void appendAttributeMangling (TargetClonesAttr *Attr, unsigned Index, raw_ostream &Out) const
 
virtual void appendAttributeMangling (StringRef AttrStr, raw_ostream &Out) const
 
virtual llvm::FixedVectorType * getOptimalVectorMemoryType (llvm::FixedVectorType *T, const LangOptions &Opt) const
 Returns the optimal vector memory type based on the given vector type.
 

Protected Attributes

CodeGen::CodeGenTypes & CGT
 
llvm::CallingConv::ID RuntimeCC
 

Detailed Description

ABIInfo - Target specific hooks for defining how a type should be passed or returned from functions.

Definition at line 48 of file ABIInfo.h.

Constructor & Destructor Documentation

◆ ABIInfo()

clang::CodeGen::ABIInfo::ABIInfo ( CodeGen::CodeGenTypes &  cgt)
inline

Definition at line 54 of file ABIInfo.h.

◆ ~ABIInfo()

ABIInfo::~ABIInfo ( )
virtualdefault

Member Function Documentation

◆ allowBFloatArgsAndRet()

virtual bool clang::CodeGen::ABIInfo::allowBFloatArgsAndRet ( ) const
inlinevirtual

Definition at line 59 of file ABIInfo.h.

◆ appendAttributeMangling() [1/4]

void ABIInfo::appendAttributeMangling ( StringRef  AttrStr,
raw_ostream &  Out 
) const
virtual

Definition at line 205 of file ABIInfo.cpp.

References CGT, clang::ParsedTargetAttr::Features, clang::TargetInfo::getFMVPriority(), clang::CodeGen::CodeGenTypes::getTarget(), and clang::TargetInfo::parseTargetAttr().

◆ appendAttributeMangling() [2/4]

void ABIInfo::appendAttributeMangling ( TargetAttr *  Attr,
raw_ostream &  Out 
) const
virtual

Definition at line 187 of file ABIInfo.cpp.

References appendAttributeMangling().

Referenced by appendAttributeMangling(), and getMangledNameImpl().

◆ appendAttributeMangling() [3/4]

void ABIInfo::appendAttributeMangling ( TargetClonesAttr *  Attr,
unsigned  Index,
raw_ostream &  Out 
) const
virtual

Definition at line 199 of file ABIInfo.cpp.

References appendAttributeMangling().

◆ appendAttributeMangling() [4/4]

void ABIInfo::appendAttributeMangling ( TargetVersionAttr *  Attr,
raw_ostream &  Out 
) const
virtual

Definition at line 194 of file ABIInfo.cpp.

References appendAttributeMangling().

◆ computeInfo()

virtual void clang::CodeGen::ABIInfo::computeInfo ( CodeGen::CGFunctionInfo &  FI) const
pure virtual

Implemented in clang::CodeGen::DefaultABIInfo, and PNaClABIInfo.

Referenced by clang::CodeGen::CodeGenTypes::arrangeLLVMFunctionInfo().

◆ EmitMSVAArg()

RValue ABIInfo::EmitMSVAArg ( CodeGen::CodeGenFunction &  CGF,
CodeGen::Address  VAListAddr,
QualType  Ty,
AggValueSlot  Slot 
) const
virtual

Emit the target dependent code to load a value of.

  • Ty from the __builtin_ms_va_list pointed to by
  • VAListAddr.

Definition at line 42 of file ABIInfo.cpp.

References clang::CodeGen::RValue::getIgnored().

◆ EmitVAArg()

virtual RValue clang::CodeGen::ABIInfo::EmitVAArg ( CodeGen::CodeGenFunction &  CGF,
CodeGen::Address  VAListAddr,
QualType  Ty,
AggValueSlot  Slot 
) const
pure virtual

EmitVAArg - Emit the target dependent code to load a value of.

  • Ty from the va_list pointed to by
  • VAListAddr.

Implemented in clang::CodeGen::DefaultABIInfo, and PNaClABIInfo.

◆ getCodeGenOpts()

const CodeGenOptions & ABIInfo::getCodeGenOpts ( ) const

Definition at line 32 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getCodeGenOpts().

◆ getContext()

ASTContext & ABIInfo::getContext ( ) const

Definition at line 20 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getContext().

Referenced by clang::CodeGen::DefaultABIInfo::classifyArgumentType(), clang::CodeGen::DefaultABIInfo::classifyReturnType(), getNaturalAlignIndirect(), getNaturalAlignIndirectInReg(), isHomogeneousAggregate(), isPromotableIntegerTypeForABI(), and isZeroLengthBitfieldPermittedInHomogeneousAggregate().

◆ getCXXABI()

CGCXXABI & ABIInfo::getCXXABI ( ) const

Definition at line 18 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getCXXABI().

Referenced by clang::CodeGen::DefaultABIInfo::classifyArgumentType(), PNaClABIInfo::classifyArgumentType(), clang::CodeGen::DefaultABIInfo::computeInfo(), PNaClABIInfo::computeInfo(), and isHomogeneousAggregate().

◆ getDataLayout()

const llvm::DataLayout & ABIInfo::getDataLayout ( ) const

Definition at line 26 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getDataLayout().

◆ getNaturalAlignIndirect()

ABIArgInfo ABIInfo::getNaturalAlignIndirect ( QualType  Ty,
bool  ByVal = true,
bool  Realign = false,
llvm::Type *  Padding = nullptr 
) const

A convenience method to return an indirect ABIArgInfo with an expected alignment equal to the ABI alignment of the given type.

Definition at line 174 of file ABIInfo.cpp.

References getContext(), and clang::CodeGen::ABIArgInfo::getIndirect().

Referenced by clang::CodeGen::DefaultABIInfo::classifyArgumentType(), PNaClABIInfo::classifyArgumentType(), clang::CodeGen::classifyReturnType(), clang::CodeGen::DefaultABIInfo::classifyReturnType(), and PNaClABIInfo::classifyReturnType().

◆ getNaturalAlignIndirectInReg()

ABIArgInfo ABIInfo::getNaturalAlignIndirectInReg ( QualType  Ty,
bool  Realign = false 
) const

Definition at line 181 of file ABIInfo.cpp.

References getContext(), and clang::CodeGen::ABIArgInfo::getIndirectInReg().

◆ getOptimalVectorMemoryType()

llvm::FixedVectorType * ABIInfo::getOptimalVectorMemoryType ( llvm::FixedVectorType *  T,
const LangOptions &  Opt 
) const
virtual

Returns the optimal vector memory type based on the given vector type.

For example, on certain targets, a vector with 3 elements might be promoted to one with 4 elements to improve performance.

Definition at line 240 of file ABIInfo.cpp.

References clang::T.

◆ getRuntimeCC()

llvm::CallingConv::ID clang::CodeGen::ABIInfo::getRuntimeCC ( ) const
inline

Return the calling convention to use for system runtime functions.

Definition at line 70 of file ABIInfo.h.

References RuntimeCC.

◆ getTarget()

const TargetInfo & ABIInfo::getTarget ( ) const

Definition at line 30 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getTarget().

Referenced by isAndroid(), and isOHOSFamily().

◆ getVMContext()

llvm::LLVMContext & ABIInfo::getVMContext ( ) const

Definition at line 22 of file ABIInfo.cpp.

References CGT, and clang::CodeGen::CodeGenTypes::getLLVMContext().

◆ isAndroid()

bool ABIInfo::isAndroid ( ) const

Definition at line 36 of file ABIInfo.cpp.

References getTarget(), and clang::TargetInfo::getTriple().

◆ isHomogeneousAggregate()

bool ABIInfo::isHomogeneousAggregate ( QualType  Ty,
const Type *&  Base,
uint64_t &  Members 
) const

isHomogeneousAggregate - Return true if a type is an ELFv2 homogeneous aggregate.

Base is set to the base element type, and Members is set to the number of base elements.

Definition at line 61 of file ABIInfo.cpp.

References clang::RecordDecl::fields(), clang::Type::getAs(), getContext(), getCXXABI(), clang::QualType::getTypePtr(), clang::ASTContext::getTypeSize(), clang::ASTContext::getVectorType(), clang::RecordDecl::hasFlexibleArrayMember(), clang::CodeGen::isEmptyRecord(), isHomogeneousAggregate(), isHomogeneousAggregateBaseType(), isHomogeneousAggregateSmallEnough(), clang::TagDecl::isUnion(), clang::Type::isVectorType(), and isZeroLengthBitfieldPermittedInHomogeneousAggregate().

Referenced by diagnoseIfNeedsFPReg(), isHomogeneousAggregate(), and isTrivialForMSVC().

◆ isHomogeneousAggregateBaseType()

bool ABIInfo::isHomogeneousAggregateBaseType ( QualType  Ty) const
virtual

Definition at line 47 of file ABIInfo.cpp.

Referenced by isHomogeneousAggregate().

◆ isHomogeneousAggregateSmallEnough()

bool ABIInfo::isHomogeneousAggregateSmallEnough ( const Type *  Base,
uint64_t  Members 
) const
virtual

Definition at line 51 of file ABIInfo.cpp.

Referenced by isHomogeneousAggregate().

◆ isOHOSFamily()

bool ABIInfo::isOHOSFamily ( ) const

Definition at line 38 of file ABIInfo.cpp.

References getTarget(), and clang::TargetInfo::getTriple().

◆ isPromotableIntegerTypeForABI()

bool ABIInfo::isPromotableIntegerTypeForABI ( QualType  Ty) const

Definition at line 163 of file ABIInfo.cpp.

References clang::Type::getAs(), and getContext().

Referenced by clang::CodeGen::DefaultABIInfo::classifyArgumentType(), PNaClABIInfo::classifyArgumentType(), clang::CodeGen::DefaultABIInfo::classifyReturnType(), and PNaClABIInfo::classifyReturnType().

◆ isZeroLengthBitfieldPermittedInHomogeneousAggregate()

bool ABIInfo::isZeroLengthBitfieldPermittedInHomogeneousAggregate ( ) const
virtual

Definition at line 56 of file ABIInfo.cpp.

References getContext(), and clang::ASTContext::getLangOpts().

Referenced by isHomogeneousAggregate().

Member Data Documentation

◆ CGT

CodeGen::CodeGenTypes& clang::CodeGen::ABIInfo::CGT
protected

Definition at line 50 of file ABIInfo.h.

Referenced by appendAttributeMangling(), clang::CodeGen::DefaultABIInfo::classifyArgumentType(), getCodeGenOpts(), getContext(), getCXXABI(), getDataLayout(), getTarget(), and getVMContext().

◆ RuntimeCC

llvm::CallingConv::ID clang::CodeGen::ABIInfo::RuntimeCC
protected

Definition at line 51 of file ABIInfo.h.

Referenced by getRuntimeCC().

The documentation for this class was generated from the following files:
Generated on Mon Jul 14 2025 06:20:16 for clang by doxygen 1.9.6