RecordLayoutBuilder.cpp File Reference

#include "clang/AST/RecordLayout.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Attr.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/Expr.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/Support/CrashRecoveryContext.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"

Include dependency graph for RecordLayoutBuilder.cpp:

Go to the source code of this file.

Functions
static uint64_t	roundUpSizeToCharAlignment (uint64_t Size, const ASTContext &Context)
static unsigned	getPaddingDiagFromTagKind (TagTypeKind Tag)
	Get diagnostic select index for tag kind for field padding diagnostic message. WARNING: Indexes apply to particular diagnostics only!
static const CXXMethodDecl *	computeKeyFunction (ASTContext &Context, const CXXRecordDecl *RD)
static bool	mustSkipTailPadding (TargetCXXABI ABI, const CXXRecordDecl *RD)
static bool	isMsLayout (const RecordDecl *D)
static bool	RequiresVtordisp (const llvm::SmallPtrSetImpl< const CXXRecordDecl * > &BasesWithOverriddenMethods, const CXXRecordDecl *RD)
static uint64_t	getFieldOffset (const ASTContext &C, const FieldDecl *FD)
static void	PrintOffset (raw_ostream &OS, CharUnits Offset, unsigned IndentLevel)
static void	PrintIndentNoOffset (raw_ostream &OS, unsigned IndentLevel)
static void	DumpCXXRecordLayout (raw_ostream &OS, const CXXRecordDecl *RD, const ASTContext &C, CharUnits Offset, unsigned IndentLevel, const char *Description, bool IncludeVirtualBases)

---

Function Documentation

static const CXXMethodDecl* computeKeyFunction	(	ASTContext &	Context,
		const CXXRecordDecl *	RD
	)		[static]

Definition at line 1946 of file RecordLayoutBuilder.cpp.

References clang::TargetCXXABI::canKeyFunctionBeInline(), clang::TargetInfo::getCXXABI(), clang::ASTContext::getTargetInfo(), clang::CXXRecordDecl::getTemplateSpecializationKind(), clang::NamedDecl::isExternallyVisible(), clang::FunctionDecl::isInlineSpecified(), clang::CXXRecordDecl::isPolymorphic(), clang::CXXRecordDecl::methods(), clang::TSK_ExplicitInstantiationDeclaration, clang::TSK_ExplicitInstantiationDefinition, and clang::TSK_ImplicitInstantiation.

Referenced by clang::ASTContext::getCurrentKeyFunction().

static void DumpCXXRecordLayout	(	raw_ostream &	OS,
		const CXXRecordDecl *	RD,
		const ASTContext &	C,
		CharUnits	Offset,
		unsigned	IndentLevel,
		const char *	Description,
		bool	IncludeVirtualBases
	)		[static]

Definition at line 3003 of file RecordLayoutBuilder.cpp.

References clang::CXXRecordDecl::bases(), clang::CharUnits::fromQuantity(), clang::ASTRecordLayout::getAlignment(), clang::Type::getAsCXXRecordDecl(), clang::QualType::getAsString(), clang::ASTContext::getASTRecordLayout(), clang::ASTRecordLayout::getBaseClassOffset(), clang::ASTRecordLayout::getDataSize(), clang::ASTRecordLayout::getFieldOffset(), clang::NamedDecl::getName(), clang::ASTRecordLayout::getNonVirtualAlignment(), clang::ASTRecordLayout::getNonVirtualSize(), clang::ASTRecordLayout::getPrimaryBase(), clang::CharUnits::getQuantity(), clang::ASTRecordLayout::getSize(), clang::ValueDecl::getType(), clang::ASTContext::getTypeDeclType(), clang::ASTRecordLayout::getVBaseClassOffset(), clang::ASTRecordLayout::getVBaseOffsetsMap(), clang::ASTRecordLayout::getVBPtrOffset(), clang::ASTRecordLayout::hasOwnVBPtr(), clang::ASTRecordLayout::hasOwnVFPtr(), clang::CXXRecordDecl::isDynamicClass(), clang::CXXRecordDecl::isEmpty(), isMsLayout(), PrintIndentNoOffset(), PrintOffset(), clang::ASTContext::toCharUnitsFromBits(), and clang::CXXRecordDecl::vbases().

Referenced by clang::ASTContext::DumpRecordLayout().

static uint64_t getFieldOffset	(	const ASTContext &	C,
		const FieldDecl *	FD
	)		[static]

Definition at line 2924 of file RecordLayoutBuilder.cpp.

References clang::ASTContext::getASTRecordLayout(), clang::FieldDecl::getFieldIndex(), clang::ASTRecordLayout::getFieldOffset(), and clang::FieldDecl::getParent().

static unsigned getPaddingDiagFromTagKind

(

TagTypeKind

Tag

)

[static]

Get diagnostic select index for tag kind for field padding diagnostic message. WARNING: Indexes apply to particular diagnostics only!

Returns:

diagnostic select index.

Definition at line 1889 of file RecordLayoutBuilder.cpp.

References clang::TTK_Class, clang::TTK_Interface, and clang::TTK_Struct.

static bool isMsLayout

(

const RecordDecl *

D

)

[static]

Definition at line 2052 of file RecordLayoutBuilder.cpp.

References clang::Decl::getASTContext(), clang::TargetInfo::getCXXABI(), clang::ASTContext::getTargetInfo(), and clang::TargetCXXABI::isMicrosoft().

Referenced by DumpCXXRecordLayout(), clang::ASTContext::DumpRecordLayout(), and clang::ASTContext::getASTRecordLayout().

static bool mustSkipTailPadding	(	TargetCXXABI	ABI,
		const CXXRecordDecl *	RD
	)		[static]

Does the target C++ ABI require us to skip over the tail-padding of the given class (considering it as a base class) when allocating objects?

Definition at line 2013 of file RecordLayoutBuilder.cpp.

References clang::TargetCXXABI::AlwaysUseTailPadding, clang::TargetCXXABI::getTailPaddingUseRules(), clang::CXXRecordDecl::isPOD(), clang::CXXRecordDecl::isStandardLayout(), clang::CXXRecordDecl::isTrivial(), clang::TargetCXXABI::UseTailPaddingUnlessPOD03, and clang::TargetCXXABI::UseTailPaddingUnlessPOD11.

Referenced by clang::ASTContext::getASTRecordLayout().

static void PrintIndentNoOffset	(	raw_ostream &	OS,
		unsigned	IndentLevel
	)		[static]

Definition at line 2998 of file RecordLayoutBuilder.cpp.

Referenced by DumpCXXRecordLayout().

static void PrintOffset	(	raw_ostream &	OS,
		CharUnits	Offset,
		unsigned	IndentLevel
	)		[static]

Definition at line 2992 of file RecordLayoutBuilder.cpp.

References clang::CharUnits::getQuantity().

Referenced by DumpCXXRecordLayout().

static bool RequiresVtordisp	(	const llvm::SmallPtrSetImpl< const CXXRecordDecl * > &	BasesWithOverriddenMethods,
		const CXXRecordDecl *	RD
	)		[static]

Definition at line 2685 of file RecordLayoutBuilder.cpp.

References clang::CXXRecordDecl::bases().

static uint64_t roundUpSizeToCharAlignment	(	uint64_t	Size,
		const ASTContext &	Context
	)		[static]

Definition at line 1345 of file RecordLayoutBuilder.cpp.

References clang::TargetInfo::getCharAlign(), and clang::ASTContext::getTargetInfo().