#include "CGCXXABI.h"
#include "CGDebugInfo.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "clang/AST/Attr.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/RecordLayout.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "clang/CodeGen/ConstantInitBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include <algorithm>
#include <cstdio>
#include <utility>

Functions
static void	setThunkProperties (CodeGenModule &CGM, const ThunkInfo &Thunk, llvm::Function *ThunkFn, bool ForVTable, GlobalDecl GD)
static bool	similar (const ABIArgInfo &infoL, CanQualType typeL, const ABIArgInfo &infoR, CanQualType typeR)
static RValue	PerformReturnAdjustment (CodeGenFunction &CGF, QualType ResultType, RValue RV, const ThunkInfo &Thunk)
static void	resolveTopLevelMetadata (llvm::Function *Fn, llvm::ValueToValueMapTy &VMap)
	This function clones a function's DISubprogram node and enters it into a value map with the intent that the map can be utilized by the cloner to short-circuit Metadata node mapping.
static bool	shouldEmitVTableThunk (CodeGenModule &CGM, const CXXMethodDecl *MD, bool IsUnprototyped, bool ForVTable)
static bool	UseRelativeLayout (const CodeGenModule &CGM)
static void	AddPointerLayoutOffset (const CodeGenModule &CGM, ConstantArrayBuilder &builder, CharUnits offset)
static void	AddRelativeLayoutOffset (const CodeGenModule &CGM, ConstantArrayBuilder &builder, CharUnits offset)
static bool	shouldEmitAvailableExternallyVTable (const CodeGenModule &CGM, const CXXRecordDecl *RD)
static bool	shouldEmitVTableAtEndOfTranslationUnit (CodeGenModule &CGM, const CXXRecordDecl *RD)
	Given that we're currently at the end of the translation unit, and we've emitted a reference to the vtable for this class, should we define that vtable?

Function Documentation

◆ AddPointerLayoutOffset()

void AddPointerLayoutOffset	(	const CodeGenModule &	CGM,
		ConstantArrayBuilder &	builder,
		CharUnits	offset )

static

Definition at line 726 of file CGVTables.cpp.

References clang::CodeGen::ConstantAggregateBuilderBase::add(), clang::CharUnits::getQuantity(), clang::CodeGen::CodeGenTypeCache::GlobalsInt8PtrTy, and clang::CodeGen::CodeGenTypeCache::PtrDiffTy.

◆ AddRelativeLayoutOffset()

void AddRelativeLayoutOffset	(	const CodeGenModule &	CGM,
		ConstantArrayBuilder &	builder,
		CharUnits	offset )

static

Definition at line 734 of file CGVTables.cpp.

References clang::CodeGen::ConstantAggregateBuilderBase::add(), clang::CharUnits::getQuantity(), and clang::CodeGen::CodeGenTypeCache::Int32Ty.

◆ PerformReturnAdjustment()

RValue PerformReturnAdjustment	(	CodeGenFunction &	CGF,
		QualType	ResultType,
		RValue	RV,
		const ThunkInfo &	Thunk )

static

Definition at line 70 of file CGVTables.cpp.

Referenced by clang::CodeGen::CodeGenFunction::EmitCallAndReturnForThunk(), and clang::CodeGen::CodeGenFunction::GenerateVarArgsThunk().

◆ resolveTopLevelMetadata()

void resolveTopLevelMetadata	(	llvm::Function *	Fn,
		llvm::ValueToValueMapTy &	VMap )

static

This function clones a function's DISubprogram node and enters it into a value map with the intent that the map can be utilized by the cloner to short-circuit Metadata node mapping.

Furthermore, the function resolves any DILocalVariable nodes referenced by dbg.value intrinsics so they can be properly mapped during cloning.

Definition at line 121 of file CGVTables.cpp.

Referenced by clang::CodeGen::CodeGenFunction::GenerateVarArgsThunk().

◆ setThunkProperties()

void setThunkProperties	(	CodeGenModule &	CGM,
		const ThunkInfo &	Thunk,
		llvm::Function *	ThunkFn,
		bool	ForVTable,
		GlobalDecl	GD )

static

Definition at line 41 of file CGVTables.cpp.

References clang::CodeGen::CGCXXABI::exportThunk(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::CodeGen::CodeGenModule::getModule(), clang::ReturnAdjustment::isEmpty(), clang::ThunkInfo::Return, clang::CodeGen::CodeGenModule::setFunctionLinkage(), clang::CodeGen::CodeGenModule::setGVProperties(), clang::CodeGen::CGCXXABI::setThunkLinkage(), and clang::CodeGen::CodeGenModule::supportsCOMDAT().

◆ shouldEmitAvailableExternallyVTable()

bool shouldEmitAvailableExternallyVTable	(	const CodeGenModule &	CGM,
		const CXXRecordDecl *	RD )

static

Definition at line 1076 of file CGVTables.cpp.

References clang::CodeGen::CGCXXABI::canSpeculativelyEmitVTable(), clang::CodeGen::CodeGenModule::getCodeGenOpts(), and clang::CodeGen::CodeGenModule::getCXXABI().

Referenced by clang::CodeGen::CodeGenModule::getVTableLinkage(), and shouldEmitVTableAtEndOfTranslationUnit().

◆ shouldEmitVTableAtEndOfTranslationUnit()

bool shouldEmitVTableAtEndOfTranslationUnit	(	CodeGenModule &	CGM,
		const CXXRecordDecl *	RD )

static

Given that we're currently at the end of the translation unit, and we've emitted a reference to the vtable for this class, should we define that vtable?

Definition at line 1257 of file CGVTables.cpp.

References clang::CodeGen::CodeGenModule::getVTables(), clang::CodeGen::CodeGenVTables::isVTableExternal(), and shouldEmitAvailableExternallyVTable().