clang API Documentation

Typedefs | Functions
CGObjC.cpp File Reference
#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:

Go to the source code of this file.

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::ValueemitARCRetainLoadOfScalar (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::ValueemitARCValueOperation (CodeGenFunction &CGF, llvm::Value *value, llvm::Constant *&fn, StringRef fnName, bool isTailCall=false)
static llvm::ValueemitARCLoadOperation (CodeGenFunction &CGF, llvm::Value *addr, llvm::Constant *&fn, StringRef fnName)
static llvm::ValueemitARCStoreOperation (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::ValueemitARCRetainAfterCall (CodeGenFunction &CGF, llvm::Value *value)
static llvm::ValueemitARCRetainCall (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]
static llvm::Constant* createARCRuntimeFunction ( CodeGenModule CGM,
llvm::FunctionType *  type,
StringRef  fnName 
) [static]
static void destroyARCStrongWithStore ( CodeGenFunction CGF,
llvm::Value addr,
QualType  type 
) [static]

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

Definition at line 1324 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]
static llvm::Value* emitARCLoadOperation ( CodeGenFunction CGF,
llvm::Value addr,
llvm::Constant *&  fn,
StringRef  fnName 
) [static]
static llvm::Value * emitARCRetainAfterCall ( CodeGenFunction CGF,
llvm::Value value 
) [static]
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 2437 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]
static llvm::Value* emitARCStoreOperation ( CodeGenFunction CGF,
llvm::Value addr,
llvm::Value value,
llvm::Constant *&  fn,
StringRef  fnName,
bool  ignored 
) [static]
static llvm::Value* emitARCValueOperation ( CodeGenFunction CGF,
llvm::Value value,
llvm::Constant *&  fn,
StringRef  fnName,
bool  isTailCall = false 
) [static]
static void emitCPPObjectAtomicGetterCall ( CodeGenFunction CGF,
llvm::Value returnAddr,
ObjCIvarDecl ivar,
llvm::Constant *  AtomicHelperFn 
) [static]
static void emitCPPObjectAtomicSetterCall ( CodeGenFunction CGF,
ObjCMethodDecl OMD,
ObjCIvarDecl ivar,
llvm::Constant *  AtomicHelperFn 
) [static]
static void emitCXXDestructMethod ( CodeGenFunction CGF,
ObjCImplementationDecl impl 
) [static]
static void emitStructGetterCall ( CodeGenFunction CGF,
ObjCIvarDecl ivar,
bool  isAtomic,
bool  hasStrong 
) [static]
static void emitStructSetterCall ( CodeGenFunction CGF,
ObjCMethodDecl OMD,
ObjCIvarDecl ivar 
) [static]
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 570 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]
static bool hasTrivialSetExpr ( const ObjCPropertyImplDecl PID) [static]
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 562 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 2484 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]
static TryEmitResult tryEmitARCRetainLoadOfScalar ( CodeGenFunction CGF,
LValue  lvalue,
QualType  type 
) [static]
static TryEmitResult tryEmitARCRetainLoadOfScalar ( CodeGenFunction CGF,
const Expr e 
) [static]
static TryEmitResult tryEmitARCRetainPseudoObject ( CodeGenFunction CGF,
const PseudoObjectExpr E 
) [static]
static TryEmitResult tryEmitARCRetainScalarExpr ( CodeGenFunction CGF,
const Expr e 
) [static]
static bool UseOptimizedSetter ( CodeGenModule CGM) [static]