clang::CIRGen Namespace Reference

Classes
class	ABIInfo
class	Address
class	AggValueSlot
	An aggregate value slot. More...
struct	CallArg
class	CallArgList
struct	CIRGenBitFieldInfo
	Record with information about how a bitfield should be accessed. More...
class	CIRGenBuilderTy
class	CIRGenCallee
class	CIRGenCalleeInfo
	Abstract information about a function or function prototype. More...
class	CIRGenCXXABI
	Implements C++ ABI-specific code generation functions. More...
class	CIRGenFunction
class	CIRGenFunctionInfo
class	CIRGenModule
	This class organizes the cross-function state that is used while generating CIR code. More...
class	CIRGenRecordLayout
	This class handles record and union layout info while lowering AST types to CIR types. More...
struct	CIRGenTypeCache
	This structure provides a set of types that are commonly used during IR emission. More...
class	CIRGenTypes
	This class organizes the cross-module state that is used while lowering AST types to CIR types. More...
class	CIRGenVTables
class	ConstantEmitter
class	EHCleanupScope
	A cleanup scope which generates the cleanup blocks lazily. More...
class	EHScope
	A protected scope for zero-cost EH handling. More...
class	EHScopeStack
	A stack of scopes which respond to exceptions, including cleanups and catch blocks. More...
class	FunctionArgList
	Type for representing both the decl and type of parameters to a function. More...
class	LValue
class	LValueBaseInfo
class	RequiredArgs
	A class for recording the number of arguments that a function signature requires. More...
class	ReturnValueSlot
	Contains the address where the return value of a function can be stored, and whether the address is volatile or not. More...
class	RValue
	This trivial value class is used to represent the result of an expression that is evaluated. More...
class	TargetCIRGenInfo

Enumerations
enum	ForDefinition_t : bool { NotForDefinition = false , ForDefinition = true }
enum class	AlignmentSource { Decl , AttributedType , Type }
	The source of the alignment of an l-value; an expression of confidence in the alignment actually matching the estimate. More...
enum	CleanupKind : unsigned {   EHCleanup = 0x1 , NormalCleanup = 0x2 , NormalAndEHCleanup = EHCleanup | NormalCleanup , LifetimeMarker = 0x8 ,   NormalEHLifetimeMarker = LifetimeMarker | NormalAndEHCleanup }

Functions
CIRGenCXXABI *	CreateCIRGenItaniumCXXABI (CIRGenModule &cgm)
	Creates and Itanium-family ABI.
static bool	mayDropFunctionReturn (const ASTContext &astContext, QualType returnType)
static void	eraseEmptyAndUnusedBlocks (cir::FuncOp func)
static std::string	getVersionedTmpName (llvm::StringRef name, unsigned cnt)
static AlignmentSource	getFieldAlignmentSource (AlignmentSource source)
	Given that the base address has the given alignment source, what's our confidence in the alignment of the field?
bool	isEmptyFieldForLayout (const ASTContext &context, const FieldDecl *fd)
	isEmptyFieldForLayout - Return true if the field is "empty", that is, either a zero-width bit-field or an isEmptyRecordForLayout.
bool	isEmptyRecordForLayout (const ASTContext &context, QualType t)
	isEmptyRecordForLayout - Return true if a structure contains only empty base classes (per isEmptyRecordForLayout) and fields (per isEmptyFieldForLayout).
std::unique_ptr< TargetCIRGenInfo >	createX8664TargetCIRGenInfo (CIRGenTypes &cgt)

Enumeration Type Documentation

AlignmentSource

enum class clang::CIRGen::AlignmentSource

strong

The source of the alignment of an l-value; an expression of confidence in the alignment actually matching the estimate.

Enumerator
Decl	The l-value was an access to a declared entity or something equivalently strong, like the address of an array allocated by a language runtime.
AttributedType	The l-value was considered opaque, so the alignment was determined from a type, but that type was an explicitly-aligned typedef.
Type	The l-value was considered opaque, so the alignment was determined from a type.

Definition at line 115 of file CIRGenValue.h.

CleanupKind

enum clang::CIRGen::CleanupKind : unsigned

Enumerator
EHCleanup	Denotes a cleanup that should run when a scope is exited using exceptional control flow (a throw statement leading to stack unwinding, ).
NormalCleanup	Denotes a cleanup that should run when a scope is exited using normal control flow (falling off the end of the scope, return, goto, ...).
NormalAndEHCleanup
LifetimeMarker
NormalEHLifetimeMarker

Definition at line 27 of file EHScopeStack.h.

ForDefinition_t

enum clang::CIRGen::ForDefinition_t : bool

Enumerator
NotForDefinition
ForDefinition

Definition at line 52 of file CIRGenModule.h.

Function Documentation

CreateCIRGenItaniumCXXABI()

CIRGenCXXABI * clang::CIRGen::CreateCIRGenItaniumCXXABI

(

CIRGenModule &

cgm

)

Creates and Itanium-family ABI.

Definition at line 395 of file CIRGenItaniumCXXABI.cpp.

References cir::MissingFeatures::cxxabiAppleARM64CXXABI(), clang::CIRGen::CIRGenModule::getASTContext(), and clang::ASTContext::getCXXABIKind().

Referenced by createCXXABI().

createX8664TargetCIRGenInfo()

std::unique_ptr< TargetCIRGenInfo > clang::CIRGen::createX8664TargetCIRGenInfo

(

CIRGenTypes &

cgt

)

Definition at line 57 of file TargetInfo.cpp.

Referenced by clang::CIRGen::CIRGenModule::getTargetCIRGenInfo().

eraseEmptyAndUnusedBlocks()

static void clang::CIRGen::eraseEmptyAndUnusedBlocks ( cir::FuncOp  func )

static

Definition at line 495 of file CIRGenFunction.cpp.

Referenced by clang::CIRGen::CIRGenFunction::generateCode().

getFieldAlignmentSource()

static AlignmentSource clang::CIRGen::getFieldAlignmentSource ( AlignmentSource  source )

inlinestatic

Given that the base address has the given alignment source, what's our confidence in the alignment of the field?

Definition at line 133 of file CIRGenValue.h.

References Decl.

Referenced by clang::CIRGen::CIRGenFunction::emitLValueForField(), and clang::CIRGen::CIRGenFunction::emitLValueForFieldInitialization().

getVersionedTmpName()

static std::string clang::CIRGen::getVersionedTmpName ( llvm::StringRef  name, unsigned  cnt  )

static

Definition at line 810 of file CIRGenFunction.cpp.

References clang::out.

Referenced by clang::CIRGen::CIRGenFunction::getCounterAggTmpAsString(), and clang::CIRGen::CIRGenFunction::getCounterRefTmpAsString().

isEmptyFieldForLayout()

bool clang::CIRGen::isEmptyFieldForLayout	(	const ASTContext &	context,
		const FieldDecl *	fd
	)

isEmptyFieldForLayout - Return true if the field is "empty", that is, either a zero-width bit-field or an isEmptyRecordForLayout.

Definition at line 30 of file TargetInfo.cpp.

References clang::ValueDecl::getType(), isEmptyRecordForLayout(), clang::FieldDecl::isUnnamedBitField(), and clang::FieldDecl::isZeroLengthBitField().

Referenced by isEmptyRecordForLayout().

isEmptyRecordForLayout()

bool clang::CIRGen::isEmptyRecordForLayout	(	const ASTContext &	context,
		QualType	t
	)

isEmptyRecordForLayout - Return true if a structure contains only empty base classes (per isEmptyRecordForLayout) and fields (per isEmptyFieldForLayout).

Note, C++ record fields are considered empty if the [[no_unique_address]] attribute would have made them empty.

Definition at line 7 of file TargetInfo.cpp.

References clang::Type::getAsRecordDecl(), isEmptyFieldForLayout(), and isEmptyRecordForLayout().

Referenced by isEmptyFieldForLayout(), and isEmptyRecordForLayout().

mayDropFunctionReturn()

static bool clang::CIRGen::mayDropFunctionReturn ( const ASTContext &  astContext, QualType  returnType  )

static

Definition at line 355 of file CIRGenFunction.cpp.

References clang::Type::getAsCXXRecordDecl(), and clang::QualType::isTriviallyCopyableType().