#include "CGDebugInfo.h"
#include "CGObjCRuntime.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "TargetInfo.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/StmtObjC.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/InlineAsm.h"

Include dependency graph for CGObjC.cpp:

Typedefs
typedef llvm::PointerIntPair < llvm::Value *, 1, bool >	TryEmitResult
Functions
static TryEmitResult	tryEmitARCRetainScalarExpr (CodeGenFunction &CGF, const Expr *e)
static RValue	AdjustRelatedResultType (CodeGenFunction &CGF, QualType ExpT, const ObjCMethodDecl *Method, RValue Result)
	Adjust the type of the result of an Objective-C message send expression when the method has a related result type.
static llvm::Constant *	getNullForVariable (llvm::Value *addr)
static bool	shouldExtendReceiverForInnerPointerMessage (const ObjCMessageExpr *message)
static llvm::Value *	emitARCRetainLoadOfScalar (CodeGenFunction &CGF, LValue lvalue, QualType type)
static void	emitStructGetterCall (CodeGenFunction &CGF, ObjCIvarDecl *ivar, bool isAtomic, bool hasStrong)
static bool	hasUnalignedAtomics (llvm::Triple::ArchType arch)
static CharUnits	getMaxAtomicAccessSize (CodeGenModule &CGM, llvm::Triple::ArchType arch)
static bool	hasTrivialGetExpr (const ObjCPropertyImplDecl *propImpl)
static void	emitCPPObjectAtomicGetterCall (CodeGenFunction &CGF, llvm::Value returnAddr, ObjCIvarDecl ivar, llvm::Constant *AtomicHelperFn)
static void	emitStructSetterCall (CodeGenFunction &CGF, ObjCMethodDecl OMD, ObjCIvarDecl ivar)
static void	emitCPPObjectAtomicSetterCall (CodeGenFunction &CGF, ObjCMethodDecl OMD, ObjCIvarDecl ivar, llvm::Constant *AtomicHelperFn)
static bool	hasTrivialSetExpr (const ObjCPropertyImplDecl *PID)
static bool	UseOptimizedSetter (CodeGenModule &CGM)
static void	destroyARCStrongWithStore (CodeGenFunction &CGF, llvm::Value *addr, QualType type)
	Like CodeGenFunction::destroyARCStrong, but do it with a call.
static void	emitCXXDestructMethod (CodeGenFunction &CGF, ObjCImplementationDecl *impl)
static llvm::Constant *	createARCRuntimeFunction (CodeGenModule &CGM, llvm::FunctionType *type, StringRef fnName)
static llvm::Value *	emitARCValueOperation (CodeGenFunction &CGF, llvm::Value value, llvm::Constant &fn, StringRef fnName, bool isTailCall=false)
static llvm::Value *	emitARCLoadOperation (CodeGenFunction &CGF, llvm::Value addr, llvm::Constant &fn, StringRef fnName)
static llvm::Value *	emitARCStoreOperation (CodeGenFunction &CGF, llvm::Value addr, llvm::Value value, llvm::Constant *&fn, StringRef fnName, bool ignored)
static void	emitARCCopyOperation (CodeGenFunction &CGF, llvm::Value dst, llvm::Value src, llvm::Constant *&fn, StringRef fnName)
static TryEmitResult	tryEmitARCRetainLoadOfScalar (CodeGenFunction &CGF, LValue lvalue, QualType type)
static TryEmitResult	tryEmitARCRetainLoadOfScalar (CodeGenFunction &CGF, const Expr *e)
static llvm::Value *	emitARCRetainAfterCall (CodeGenFunction &CGF, llvm::Value *value)
static llvm::Value *	emitARCRetainCall (CodeGenFunction &CGF, const Expr *e)
static bool	shouldEmitSeparateBlockRetain (const Expr *e)
static TryEmitResult	tryEmitARCRetainPseudoObject (CodeGenFunction &CGF, const PseudoObjectExpr *E)

Typedef Documentation

typedef llvm::PointerIntPair<llvm::Value*,1,bool> TryEmitResult

Definition at line 31 of file CGObjC.cpp.

Function Documentation

static RValue AdjustRelatedResultType	(	CodeGenFunction &	CGF,
		QualType	ET,
		const ObjCMethodDecl *	Method,
		RValue	Result
	)		`[static]`

Adjust the type of the result of an Objective-C message send expression when the method has a related result type.

Definition at line 230 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::RValue::get(), clang::CodeGen::CodeGenFunction::getContext(), clang::ObjCMethodDecl::getReturnType(), clang::CodeGen::RValue::getScalarVal(), clang::ObjCMethodDecl::hasRelatedResultType(), clang::ASTContext::hasSameType(), and clang::CodeGen::RValue::isScalar().

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

static llvm::Constant* createARCRuntimeFunction	(	CodeGenModule &	CGM,
		llvm::FunctionType *	type,
		StringRef	fnName
	)		`[static]`

Definition at line 1770 of file CGObjC.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::ObjCRuntime::hasNativeARC(), and clang::LangOptions::ObjCRuntime.

Referenced by emitARCCopyOperation(), clang::CodeGen::CodeGenFunction::EmitARCDestroyWeak(), emitARCLoadOperation(), clang::CodeGen::CodeGenFunction::EmitARCRelease(), emitARCStoreOperation(), clang::CodeGen::CodeGenFunction::EmitARCStoreStrongCall(), emitARCValueOperation(), clang::CodeGen::CodeGenFunction::EmitObjCAutoreleasePoolPop(), and clang::CodeGen::CodeGenFunction::EmitObjCAutoreleasePoolPush().

static void destroyARCStrongWithStore	(	CodeGenFunction &	CGF,
		llvm::Value *	addr,
		QualType	type
	)		`[static]`

Like CodeGenFunction::destroyARCStrong, but do it with a call.

Definition at line 1312 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::EmitARCStoreStrongCall(), and getNullForVariable().

Referenced by emitCXXDestructMethod().

static void emitARCCopyOperation	(	CodeGenFunction &	CGF,
		llvm::Value *	dst,
		llvm::Value *	src,
		llvm::Constant *&	fn,
		StringRef	fnName
	)		`[static]`

Perform an operation having the following signature: void (i8**, i8**)

Definition at line 1881 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, createARCRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), and clang::CodeGen::CodeGenTypeCache::Int8PtrPtrTy.

Referenced by clang::CodeGen::CodeGenFunction::EmitARCCopyWeak(), and clang::CodeGen::CodeGenFunction::EmitARCMoveWeak().

static llvm::Value* emitARCLoadOperation	(	CodeGenFunction &	CGF,
		llvm::Value *	addr,
		llvm::Constant *&	fn,
		StringRef	fnName
	)		`[static]`

Perform an operation having the following signature: i8* (i8**)

Definition at line 1822 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, createARCRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), getElementType(), clang::CodeGen::CodeGenTypeCache::Int8PtrPtrTy, and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

Referenced by clang::CodeGen::CodeGenFunction::EmitARCLoadWeak(), and clang::CodeGen::CodeGenFunction::EmitARCLoadWeakRetained().

static llvm::Value * emitARCRetainAfterCall	(	CodeGenFunction &	CGF,
		llvm::Value *	value
	)		`[static]`

Definition at line 2430 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleasedReturnValue(), and clang::CodeGen::CodeGenFunction::EmitARCRetainNonBlock().

Referenced by emitARCRetainCall().

static llvm::Value* emitARCRetainCall	(	CodeGenFunction &	CGF,
		const Expr *	e
	)		`[static]`

Given that the given expression is some sort of call (which does not return retained), emit a retain following it.

Definition at line 2425 of file CGObjC.cpp.

References emitARCRetainAfterCall(), and clang::CodeGen::CodeGenFunction::EmitScalarExpr().

Referenced by tryEmitARCRetainScalarExpr().

static llvm::Value * emitARCRetainLoadOfScalar	(	CodeGenFunction &	CGF,
		LValue	lvalue,
		QualType	type
	)		`[static]`

Definition at line 2700 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::EmitARCRetain(), and tryEmitARCRetainLoadOfScalar().

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

static llvm::Value* emitARCStoreOperation	(	CodeGenFunction &	CGF,
		llvm::Value *	addr,
		llvm::Value *	value,
		llvm::Constant *&	fn,
		StringRef	fnName,
		bool	ignored
	)		`[static]`

Perform an operation having the following signature: i8* (i8**, i8*)

Definition at line 1849 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, createARCRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), getElementType(), clang::CodeGen::CodeGenTypeCache::Int8PtrPtrTy, and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

Referenced by clang::CodeGen::CodeGenFunction::EmitARCInitWeak(), and clang::CodeGen::CodeGenFunction::EmitARCStoreWeak().

static llvm::Value* emitARCValueOperation	(	CodeGenFunction &	CGF,
		llvm::Value *	value,
		llvm::Constant *&	fn,
		StringRef	fnName,
		bool	isTailCall = `false`
	)		`[static]`

Perform an operation having the signature i8* (i8*) where a null input causes a no-op and returns null.

Definition at line 1794 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, createARCRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

Referenced by clang::CodeGen::CodeGenFunction::EmitARCAutorelease(), clang::CodeGen::CodeGenFunction::EmitARCAutoreleaseReturnValue(), clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleasedReturnValue(), clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleaseNonBlock(), clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleaseReturnValue(), clang::CodeGen::CodeGenFunction::EmitARCRetainBlock(), and clang::CodeGen::CodeGenFunction::EmitARCRetainNonBlock().

static void emitCPPObjectAtomicGetterCall	(	CodeGenFunction &	CGF,
		llvm::Value *	returnAddr,
		ObjCIvarDecl *	ivar,
		llvm::Constant *	AtomicHelperFn
	)		`[static]`

emitCPPObjectAtomicGetterCall - Call the runtime function to copy the ivar into the resturn slot.

Definition at line 784 of file CGObjC.cpp.

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

static void emitCPPObjectAtomicSetterCall	(	CodeGenFunction &	CGF,
		ObjCMethodDecl *	OMD,
		ObjCIvarDecl *	ivar,
		llvm::Constant *	AtomicHelperFn
	)		`[static]`

emitCPPObjectAtomicSetterCall - Call the runtime function to store the value from the first formal parameter into the given ivar, using the Cpp API for atomic Cpp objects with non-trivial copy assignment.

Definition at line 1026 of file CGObjC.cpp.

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

static void emitCXXDestructMethod	(	CodeGenFunction &	CGF,
		ObjCImplementationDecl *	impl
	)		`[static]`

Definition at line 1319 of file CGObjC.cpp.

References clang::ObjCInterfaceDecl::all_declared_ivar_begin(), destroyARCStrongWithStore(), clang::QualType::DK_objc_strong_lifetime, clang::CodeGen::EHCleanup, clang::CodeGen::CodeGenFunction::EHStack, clang::ObjCImplDecl::getClassInterface(), clang::CodeGen::CodeGenFunction::getCleanupKind(), clang::CodeGen::CodeGenFunction::getDestroyer(), clang::ObjCIvarDecl::getNextIvar(), clang::QualType::isDestructedType(), clang::CodeGen::CodeGenFunction::LoadObjCSelf(), clang::CodeGen::CodeGenFunction::RunCleanupsScope::requiresCleanups(), and clang::ast_matchers::type.

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

static void emitStructGetterCall	(	CodeGenFunction &	CGF,
		ObjCIvarDecl *	ivar,
		bool	isAtomic,
		bool	hasStrong
	)		`[static]`

emitStructGetterCall - Call the runtime function to load a property into the return value slot.

Definition at line 517 of file CGObjC.cpp.

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

static void emitStructSetterCall	(	CodeGenFunction &	CGF,
		ObjCMethodDecl *	OMD,
		ObjCIvarDecl *	ivar
	)		`[static]`

emitStructSetterCall - Call the runtime function to store the value from the first formal parameter into the given ivar.

Definition at line 982 of file CGObjC.cpp.

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

static CharUnits getMaxAtomicAccessSize	(	CodeGenModule &	CGM,
		llvm::Triple::ArchType	arch
	)		`[static]`

Return the maximum size that permits atomic accesses for the given architecture.

Definition at line 558 of file CGObjC.cpp.

References clang::CharUnits::fromQuantity(), and clang::CodeGen::CodeGenTypeCache::PointerSizeInBytes.

static llvm::Constant* getNullForVariable ( llvm::Value * addr ) [static]

Given the address of a variable of pointer type, find the correct null to store into it.

Definition at line 41 of file CGObjC.cpp.

References getElementType(), and clang::ast_matchers::type.

Referenced by destroyARCStrongWithStore(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), and tryEmitARCRetainLoadOfScalar().

static bool hasTrivialGetExpr ( const ObjCPropertyImplDecl * propImpl ) [static]

Definition at line 759 of file CGObjC.cpp.

References clang::ObjCPropertyImplDecl::getGetterCXXConstructor(), and clang::Expr::isGLValue().

Referenced by clang::CodeGen::CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(), and clang::CodeGen::CodeGenFunction::generateObjCGetterBody().

static bool hasTrivialSetExpr ( const ObjCPropertyImplDecl * PID ) [static]

Definition at line 1062 of file CGObjC.cpp.

References clang::ObjCPropertyImplDecl::getSetterCXXAssignment().

Referenced by clang::CodeGen::CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(), and clang::CodeGen::CodeGenFunction::generateObjCSetterBody().

static bool hasUnalignedAtomics ( llvm::Triple::ArchType arch ) [static]

Determine whether the given architecture supports unaligned atomic accesses. They don't have to be fast, just faster than a function call and a mutex.

Definition at line 550 of file CGObjC.cpp.

static bool shouldEmitSeparateBlockRetain ( const Expr * e ) [static]

Determine whether it might be important to emit a separate objc_retain_block on the result of the given expression, or whether it's okay to just emit it in a +1 context.

Definition at line 2472 of file CGObjC.cpp.

References clang::CK_AnyPointerToBlockPointerCast, clang::CK_ARCConsumeObject, clang::CK_ARCProduceObject, clang::CK_ARCReclaimReturnedObject, clang::CK_BitCast, clang::CK_LValueToRValue, clang::CK_NoOp, clang::Expr::getType(), clang::Expr::IgnoreParens(), and clang::Type::isBlockPointerType().

Referenced by clang::CodeGen::CodeGenFunction::EmitARCExtendBlockObject(), and tryEmitARCRetainScalarExpr().

static bool shouldExtendReceiverForInnerPointerMessage ( const ObjCMessageExpr * message ) [static]

Decide whether to extend the lifetime of the receiver of a returns-inner-pointer message.

Definition at line 250 of file CGObjC.cpp.

References clang::CK_LValueToRValue, clang::ObjCMessageExpr::Class, clang::CastExpr::getCastKind(), clang::DeclRefExpr::getDecl(), clang::ObjCMessageExpr::getInstanceReceiver(), clang::QualType::getObjCLifetime(), clang::ObjCMessageExpr::getReceiverKind(), clang::CastExpr::getSubExpr(), clang::Expr::getType(), clang::Decl::hasAttr(), clang::VarDecl::hasLocalStorage(), clang::Expr::IgnoreParens(), clang::ObjCMessageExpr::Instance, clang::Qualifiers::OCL_Strong, clang::ObjCMessageExpr::SuperClass, and clang::ObjCMessageExpr::SuperInstance.

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

static TryEmitResult tryEmitARCRetainLoadOfScalar	(	CodeGenFunction &	CGF,
		LValue	lvalue,
		QualType	type
	)		`[static]`

Definition at line 2363 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::EmitARCLoadWeakRetained(), clang::CodeGen::CodeGenFunction::EmitLoadOfLValue(), clang::CodeGen::LValue::getAddress(), clang::QualType::getObjCLifetime(), clang::CodeGen::RValue::getScalarVal(), clang::Qualifiers::OCL_Autoreleasing, clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_None, clang::Qualifiers::OCL_Strong, and clang::Qualifiers::OCL_Weak.

Referenced by emitARCRetainLoadOfScalar(), tryEmitARCRetainLoadOfScalar(), and tryEmitARCRetainScalarExpr().

static TryEmitResult tryEmitARCRetainLoadOfScalar	(	CodeGenFunction &	CGF,
		const Expr *	e
	)		`[static]`

static TryEmitResult tryEmitARCRetainPseudoObject	(	CodeGenFunction &	CGF,
		const PseudoObjectExpr *	E
	)		`[static]`

Try to emit a PseudoObjectExpr at +1.

This massively duplicates emitPseudoObjectRValue.

Definition at line 2508 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(), clang::CodeGen::RValue::get(), clang::PseudoObjectExpr::getResultExpr(), clang::PseudoObjectExpr::semantics_begin(), clang::PseudoObjectExpr::semantics_end(), and tryEmitARCRetainScalarExpr().

Referenced by tryEmitARCRetainScalarExpr().

static TryEmitResult tryEmitARCRetainScalarExpr	(	CodeGenFunction &	CGF,
		const Expr *	e
	)		`[static]`

Definition at line 2559 of file CGObjC.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CK_AnyPointerToBlockPointerCast, clang::CK_ARCConsumeObject, clang::CK_ARCExtendBlockObject, clang::CK_ARCReclaimReturnedObject, clang::CK_BitCast, clang::CK_BlockPointerToObjCPointerCast, clang::CK_CPointerToObjCPointerCast, clang::CK_LValueToRValue, clang::CK_NoOp, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::CodeGenFunction::EmitARCRetainBlock(), emitARCRetainCall(), clang::CodeGen::CodeGenFunction::EmitScalarExpr(), clang::Expr::getType(), clang::Type::hasPointerRepresentation(), clang::Expr::IgnoreParens(), shouldEmitSeparateBlockRetain(), tryEmitARCRetainLoadOfScalar(), tryEmitARCRetainPseudoObject(), and clang::UO_Extension.

Referenced by clang::CodeGen::CodeGenFunction::EmitARCExtendBlockObject(), clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleaseScalarExpr(), clang::CodeGen::CodeGenFunction::EmitARCRetainScalarExpr(), clang::CodeGen::CodeGenFunction::EmitARCStoreStrong(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), and tryEmitARCRetainPseudoObject().

static bool UseOptimizedSetter ( CodeGenModule & CGM ) [static]

Definition at line 1086 of file CGObjC.cpp.

References clang::CodeGen::CodeGenModule::getLangOpts(), clang::ObjCRuntime::hasOptimizedSetter(), clang::LangOptions::NonGC, and clang::LangOptions::ObjCRuntime.

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

Typedefs

Functions

Typedef Documentation

Function Documentation