#include "CGCXXABI.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/Support/Format.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()

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

static

Definition at line 701 of file CGVTables.cpp.

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

◆ AddRelativeLayoutOffset()

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

static

Definition at line 709 of file CGVTables.cpp.

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

◆ PerformReturnAdjustment()

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

static

Definition at line 70 of file CGVTables.cpp.

◆ resolveTopLevelMetadata()

static 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.

◆ setThunkProperties()

static 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()

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

static

Definition at line 1034 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()

static 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 1203 of file CGVTables.cpp.

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