18 #include "llvm/ADT/StringExtras.h" 19 #include "llvm/IR/Intrinsics.h" 20 #include "llvm/IR/MDBuilder.h" 21 #include "llvm/Support/Path.h" 23 using namespace clang;
24 using namespace CodeGen;
31 "VarDecl must have global or local (in the case of OpenCL) storage!");
33 "Should not call EmitDeclInit on a reference!");
62 llvm_unreachable(
"bad evaluation kind");
96 assert(!D.
getTLSKind() &&
"should have rejected this");
100 llvm::FunctionCallee Func;
101 llvm::Constant *Argument;
108 bool CanRegisterDestructor =
116 if (Record && (CanRegisterDestructor || UsingExternalHelper)) {
121 Argument = llvm::ConstantExpr::getBitCast(
129 Argument = llvm::Constant::getNullValue(CGF.
Int8PtrTy);
138 llvm::Constant *Addr) {
152 llvm::Function *InvariantStart =
CGM.
getIntrinsic(InvStartID, ObjectPtr);
157 llvm::ConstantExpr::getBitCast(Addr,
Int8PtrTy)};
158 Builder.CreateCall(InvariantStart, Args);
162 llvm::Constant *DeclPtr,
184 unsigned ActualAddrSpace = DeclPtr->getType()->getPointerAddressSpace();
185 if (ActualAddrSpace != ExpectedAddrSpace) {
187 llvm::PointerType *PTy = llvm::PointerType::get(LTy, ExpectedAddrSpace);
188 DeclPtr = llvm::ConstantExpr::getAddrSpaceCast(DeclPtr, PTy);
195 D.
hasAttr<OMPThreadPrivateDeclAttr>()) {
197 &D, DeclAddr, D.
getAttr<OMPThreadPrivateDeclAttr>()->getLocation(),
209 assert(PerformInit &&
"cannot have constant initializer which needs " 210 "destruction for reference");
218 llvm::FunctionCallee dtor,
219 llvm::Constant *addr) {
221 llvm::FunctionType *ty = llvm::FunctionType::get(
CGM.
VoidTy,
false);
224 llvm::raw_svector_ostream Out(FnName);
237 llvm::CallInst *call = CGF.
Builder.CreateCall(dtor, addr);
240 if (llvm::Function *dtorFn =
241 dyn_cast<llvm::Function>(dtor.getCallee()->stripPointerCasts()))
242 call->setCallingConv(dtorFn->getCallingConv());
251 llvm::FunctionCallee dtor,
252 llvm::Constant *addr) {
260 llvm::FunctionType *atexitTy =
261 llvm::FunctionType::get(
IntTy, dtorStub->getType(),
false);
263 llvm::FunctionCallee atexit =
266 if (llvm::Function *atexitFn = dyn_cast<llvm::Function>(atexit.getCallee()))
267 atexitFn->setDoesNotThrow();
273 llvm::GlobalVariable *DeclPtr,
280 "this initialization requires a guard variable, which " 281 "the kernel does not support");
287 llvm::BasicBlock *InitBlock,
288 llvm::BasicBlock *NoInitBlock,
295 static const uint64_t InitsPerTLSVar = 1024;
296 static const uint64_t InitsPerLocalVar = 1024 * 1024;
298 llvm::MDNode *Weights;
310 NumInits = InitsPerTLSVar;
312 NumInits = InitsPerLocalVar;
317 Weights = MDHelper.createBranchWeights(1, NumInits - 1);
320 Builder.CreateCondBr(NeedsInit, InitBlock, NoInitBlock, Weights);
324 llvm::FunctionType *FTy,
const Twine &Name,
const CGFunctionInfo &FI,
331 if (
const char *Section =
getTarget().getStaticInitSectionSpecifier())
332 Fn->setSection(Section);
335 SetInternalFunctionAttributes(
GlobalDecl(), Fn, FI);
340 Fn->setDoesNotThrow();
342 if (
getLangOpts().Sanitize.has(SanitizerKind::Address) &&
343 !isInSanitizerBlacklist(SanitizerKind::Address, Fn, Loc))
344 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
346 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelAddress) &&
347 !isInSanitizerBlacklist(SanitizerKind::KernelAddress, Fn, Loc))
348 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
350 if (
getLangOpts().Sanitize.has(SanitizerKind::HWAddress) &&
351 !isInSanitizerBlacklist(SanitizerKind::HWAddress, Fn, Loc))
352 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
354 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelHWAddress) &&
355 !isInSanitizerBlacklist(SanitizerKind::KernelHWAddress, Fn, Loc))
356 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
358 if (
getLangOpts().Sanitize.has(SanitizerKind::Thread) &&
359 !isInSanitizerBlacklist(SanitizerKind::Thread, Fn, Loc))
360 Fn->addFnAttr(llvm::Attribute::SanitizeThread);
362 if (
getLangOpts().Sanitize.has(SanitizerKind::Memory) &&
363 !isInSanitizerBlacklist(SanitizerKind::Memory, Fn, Loc))
364 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
366 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelMemory) &&
367 !isInSanitizerBlacklist(SanitizerKind::KernelMemory, Fn, Loc))
368 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
370 if (
getLangOpts().Sanitize.has(SanitizerKind::SafeStack) &&
371 !isInSanitizerBlacklist(SanitizerKind::SafeStack, Fn, Loc))
372 Fn->addFnAttr(llvm::Attribute::SafeStack);
374 if (
getLangOpts().Sanitize.has(SanitizerKind::ShadowCallStack) &&
375 !isInSanitizerBlacklist(SanitizerKind::ShadowCallStack, Fn, Loc))
376 Fn->addFnAttr(llvm::Attribute::ShadowCallStack);
378 auto RASignKind = getCodeGenOpts().getSignReturnAddress();
380 Fn->addFnAttr(
"sign-return-address",
384 auto RASignKey = getCodeGenOpts().getSignReturnAddressKey();
385 Fn->addFnAttr(
"sign-return-address-key",
386 RASignKey == CodeGenOptions::SignReturnAddressKeyValue::AKey
391 if (getCodeGenOpts().BranchTargetEnforcement)
392 Fn->addFnAttr(
"branch-target-enforcement");
400 void CodeGenModule::EmitPointerToInitFunc(
const VarDecl *D,
401 llvm::GlobalVariable *GV,
402 llvm::Function *InitFunc,
404 llvm::GlobalVariable *PtrArray =
new llvm::GlobalVariable(
405 TheModule, InitFunc->getType(),
true,
406 llvm::GlobalValue::PrivateLinkage, InitFunc,
"__cxx_init_fn_ptr");
407 PtrArray->setSection(ISA->getSection());
408 addUsedGlobal(PtrArray);
411 if (llvm::Comdat *C = GV->getComdat())
412 PtrArray->setComdat(C);
416 CodeGenModule::EmitCXXGlobalVarDeclInitFunc(
const VarDecl *D,
417 llvm::GlobalVariable *Addr,
426 (D->
hasAttr<CUDADeviceAttr>() || D->
hasAttr<CUDAConstantAttr>() ||
435 auto I = DelayedCXXInitPosition.find(D);
436 if (I != DelayedCXXInitPosition.end() && I->second == ~0U)
439 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
442 llvm::raw_svector_ostream Out(FnName);
443 getCXXABI().getMangleContext().mangleDynamicInitializer(D, Out);
448 CreateGlobalInitOrDestructFunction(FTy, FnName.str(),
452 auto *ISA = D->
getAttr<InitSegAttr>();
456 llvm::GlobalVariable *COMDATKey =
463 CXXThreadLocalInits.push_back(Fn);
464 CXXThreadLocalInitVars.push_back(D);
465 }
else if (PerformInit && ISA) {
466 EmitPointerToInitFunc(D, Addr, Fn, ISA);
467 }
else if (
auto *IPA = D->
getAttr<InitPriorityAttr>()) {
469 PrioritizedCXXGlobalInits.push_back(std::make_pair(Key, Fn));
483 AddGlobalCtor(Fn, 65535, COMDATKey);
484 }
else if (D->
hasAttr<SelectAnyAttr>()) {
488 AddGlobalCtor(Fn, 65535, COMDATKey);
490 I = DelayedCXXInitPosition.find(D);
491 if (I == DelayedCXXInitPosition.end()) {
492 CXXGlobalInits.push_back(Fn);
493 }
else if (I->second != ~0U) {
494 assert(I->second < CXXGlobalInits.size() &&
495 CXXGlobalInits[I->second] ==
nullptr);
496 CXXGlobalInits[I->second] = Fn;
501 DelayedCXXInitPosition[D] = ~0U;
504 void CodeGenModule::EmitCXXThreadLocalInitFunc() {
505 getCXXABI().EmitThreadLocalInitFuncs(
506 *
this, CXXThreadLocals, CXXThreadLocalInits, CXXThreadLocalInitVars);
508 CXXThreadLocalInits.clear();
509 CXXThreadLocalInitVars.clear();
510 CXXThreadLocals.clear();
514 CodeGenModule::EmitCXXGlobalInitFunc() {
515 while (!CXXGlobalInits.empty() && !CXXGlobalInits.back())
516 CXXGlobalInits.pop_back();
518 if (CXXGlobalInits.empty() && PrioritizedCXXGlobalInits.empty())
521 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
525 if (!PrioritizedCXXGlobalInits.empty()) {
527 llvm::array_pod_sort(PrioritizedCXXGlobalInits.begin(),
528 PrioritizedCXXGlobalInits.end());
533 I = PrioritizedCXXGlobalInits.begin(),
534 E = PrioritizedCXXGlobalInits.end(); I != E; ) {
536 PrioE = std::upper_bound(I + 1, E, *I, GlobalInitPriorityCmp());
538 LocalCXXGlobalInits.clear();
539 unsigned Priority = I->first.priority;
542 std::string PrioritySuffix = llvm::utostr(Priority);
544 PrioritySuffix = std::string(6-PrioritySuffix.size(),
'0')+PrioritySuffix;
545 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
546 FTy,
"_GLOBAL__I_" + PrioritySuffix, FI);
548 for (; I < PrioE; ++I)
549 LocalCXXGlobalInits.push_back(I->second);
552 AddGlobalCtor(Fn, Priority);
554 PrioritizedCXXGlobalInits.clear();
561 if (FileName.empty())
564 for (
size_t i = 0; i < FileName.size(); ++i) {
571 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
572 FTy, llvm::Twine(
"_GLOBAL__sub_I_", FileName), FI);
577 CXXGlobalInits.clear();
580 void CodeGenModule::EmitCXXGlobalDtorFunc() {
581 if (CXXGlobalDtors.empty())
584 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
589 CreateGlobalInitOrDestructFunction(FTy,
"_GLOBAL__D_a", FI);
598 llvm::GlobalVariable *Addr,
607 getTypes().arrangeNullaryFunction(),
614 if (Addr->hasWeakLinkage() || Addr->hasLinkOnceLinkage()) {
634 llvm::BasicBlock *ExitBlock =
nullptr;
640 "guard.uninitialized");
667 for (
unsigned i = 0, e = Decls.size(); i != e; ++i)
671 Scope.ForceCleanup();
684 const std::vector<std::tuple<llvm::FunctionType *, llvm::WeakTrackingVH,
685 llvm::Constant *>> &DtorsAndObjects) {
694 for (
unsigned i = 0, e = DtorsAndObjects.size(); i != e; ++i) {
695 llvm::FunctionType *CalleeTy;
698 std::tie(CalleeTy, Callee, Arg) = DtorsAndObjects[e - i - 1];
699 llvm::CallInst *CI =
Builder.CreateCall(CalleeTy, Callee, Arg);
701 if (llvm::Function *F = dyn_cast<llvm::Function>(Callee))
702 CI->setCallingConv(F->getCallingConv());
714 bool useEHCleanupForArray,
const VarDecl *VD) {
718 args.push_back(&Dst);
724 FTy,
"__cxx_global_array_dtor", FI, VD->
getLocation());
730 emitDestroy(addr, type, destroyer, useEHCleanupForArray);
const CGFunctionInfo & arrangeBuiltinFunctionDeclaration(QualType resultType, const FunctionArgList &args)
A builtin function is a freestanding function using the default C conventions.
const llvm::DataLayout & getDataLayout() const
void EmitCXXGuardedInitBranch(llvm::Value *NeedsInit, llvm::BasicBlock *InitBlock, llvm::BasicBlock *NoInitBlock, GuardKind Kind, const VarDecl *D)
Emit a branch to select whether or not to perform guarded initialization.
llvm::IntegerType * IntTy
int
Other implicit parameter.
Destroyer * getDestroyer(QualType::DestructionKind destructionKind)
A (possibly-)qualified type.
CodeGenTypes & getTypes()
const CodeGenOptions & getCodeGenOpts() const
llvm::LLVMContext & getLLVMContext()
The base class of the type hierarchy.
void EmitComplexExprIntoLValue(const Expr *E, LValue dest, bool isInit)
EmitComplexExprIntoLValue - Emit the given expression of complex type and place its result into the s...
Represents a variable declaration or definition.
llvm::Value * EmitObjCAutoreleasePoolPush()
Produce the code to do a objc_autoreleasepool_push.
llvm::Type * ConvertTypeForMem(QualType T)
ConvertTypeForMem - Convert type T into a llvm::Type.
std::string getName(ArrayRef< StringRef > Parts) const
Get the platform-specific name separator.
const TargetInfo & getTarget() const
void emitDestroy(Address addr, QualType type, Destroyer *destroyer, bool useEHCleanupForArray)
emitDestroy - Immediately perform the destruction of the given object.
CodeGenFunction - This class organizes the per-function state that is used while generating LLVM code...
llvm::Type * ConvertType(QualType T)
ConvertType - Convert type T into a llvm::Type.
llvm::IntegerType * Int64Ty
RValue EmitReferenceBindingToExpr(const Expr *E)
Emits a reference binding to the passed in expression.
bool isReferenceType() const
void registerGlobalDtorWithAtExit(const VarDecl &D, llvm::FunctionCallee fn, llvm::Constant *addr)
Call atexit() with a function that passes the given argument to the given function.
SourceLocation getBeginLoc() const LLVM_READONLY
void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D, llvm::GlobalVariable *Addr, bool PerformInit)
Emit the code necessary to initialize the given global variable.
llvm::FunctionCallee getAddrAndTypeOfCXXStructor(const CXXMethodDecl *MD, StructorType Type, const CGFunctionInfo *FnInfo=nullptr, llvm::FunctionType *FnType=nullptr, bool DontDefer=false, ForDefinition_t IsForDefinition=NotForDefinition)
void EmitStoreOfScalar(llvm::Value *Value, Address Addr, bool Volatile, QualType Ty, AlignmentSource Source=AlignmentSource::Type, bool isInit=false, bool isNontemporal=false)
EmitStoreOfScalar - Store a scalar value to an address, taking care to appropriately convert from the...
static ApplyDebugLocation CreateArtificial(CodeGenFunction &CGF)
Apply TemporaryLocation if it is valid.
CharUnits - This is an opaque type for sizes expressed in character units.
llvm::CallInst * EmitRuntimeCall(llvm::FunctionCallee callee, const Twine &name="")
llvm::PointerType * VoidPtrTy
TemplateSpecializationKind getTemplateSpecializationKind() const
If this variable is an instantiation of a variable template or a static data member of a class templa...
bool needsEHCleanup(QualType::DestructionKind kind)
Determines whether an EH cleanup is required to destroy a type with the given destruction kind...
Scope - A scope is a transient data structure that is used while parsing the program.
llvm::BasicBlock * createBasicBlock(const Twine &name="", llvm::Function *parent=nullptr, llvm::BasicBlock *before=nullptr)
createBasicBlock - Create an LLVM basic block.
bool hasTrivialDestructor() const
Determine whether this class has a trivial destructor (C++ [class.dtor]p3)
CXXDestructorDecl * getDestructor() const
Returns the destructor decl for this class.
virtual bool canCallMismatchedFunctionType() const
Returns true if the target allows calling a function through a pointer with a different signature tha...
constexpr XRayInstrMask All
virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, llvm::Value *src, Address dest, bool threadlocal=false)=0
bool isTypeConstant(QualType QTy, bool ExcludeCtorDtor)
isTypeConstant - Determine whether an object of this type can be emitted as a constant.
CXXRecordDecl * getAsCXXRecordDecl() const
Retrieves the CXXRecordDecl that this type refers to, either because the type is a RecordType or beca...
ASTContext & getContext() const
RValue - This trivial value class is used to represent the result of an expression that is evaluated...
virtual void mangleDynamicAtExitDestructor(const VarDecl *D, raw_ostream &)=0
QuantityType getQuantity() const
getQuantity - Get the raw integer representation of this quantity.
virtual bool HasThisReturn(GlobalDecl GD) const
Returns true if the given constructor or destructor is one of the kinds that the ABI says returns 'th...
llvm::CallingConv::ID getRuntimeCC() const
void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr, bool PerformInit)
Emit code in this function to perform a guarded variable initialization.
CGObjCRuntime & getObjCRuntime()
Return a reference to the configured Objective-C runtime.
static TypeEvaluationKind getEvaluationKind(QualType T)
getEvaluationKind - Return the TypeEvaluationKind of QualType T.
llvm::Function * generateDestroyHelper(Address addr, QualType type, Destroyer *destroyer, bool useEHCleanupForArray, const VarDecl *VD)
generateDestroyHelper - Generates a helper function which, when invoked, destroys the given object...
This represents one expression.
bool hasLocalStorage() const
Returns true if a variable with function scope is a non-static local variable.
Enters a new scope for capturing cleanups, all of which will be executed once the scope is exited...
const CGFunctionInfo & arrangeNullaryFunction()
A nullary function is a freestanding function of type 'void ()'.
Represents a C++ destructor within a class.
virtual void EmitGuardedInit(CodeGenFunction &CGF, const VarDecl &D, llvm::GlobalVariable *DeclPtr, bool PerformInit)=0
Emits the guarded initializer and destructor setup for the given variable, given that it couldn't be ...
void EmitInvariantStart(llvm::Constant *Addr, CharUnits Size)
TLSKind getTLSKind() const
static CharUnits fromQuantity(QuantityType Quantity)
fromQuantity - Construct a CharUnits quantity from a raw integer type.
void GenerateCXXGlobalInitFunc(llvm::Function *Fn, ArrayRef< llvm::Function *> CXXThreadLocals, ConstantAddress Guard=ConstantAddress::invalid())
GenerateCXXGlobalInitFunc - Generates code for initializing global variables.
void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr, bool PerformInit)
EmitCXXGlobalVarDeclInit - Create the initializer for a C++ variable with global storage.
bool isObjCStrong() const
ASTContext & getContext() const
bool isTemplateInstantiation(TemplateSpecializationKind Kind)
Determine whether this template specialization kind refers to an instantiation of an entity (as oppos...
GlobalDecl - represents a global declaration.
The l-value was considered opaque, so the alignment was determined from a type.
Encodes a location in the source.
bool hasGlobalStorage() const
Returns true for all variables that do not have local storage.
void StartFunction(GlobalDecl GD, QualType RetTy, llvm::Function *Fn, const CGFunctionInfo &FnInfo, const FunctionArgList &Args, SourceLocation Loc=SourceLocation(), SourceLocation StartLoc=SourceLocation())
Emit code for the start of a function.
DestructionKind isDestructedType() const
Returns a nonzero value if objects of this type require non-trivial work to clean up after...
MangleContext & getMangleContext()
Gets the mangle context.
constexpr XRayInstrMask None
void Error(SourceLocation loc, StringRef error)
Emit a general error that something can't be done.
void FinishFunction(SourceLocation EndLoc=SourceLocation())
FinishFunction - Complete IR generation of the current function.
SourceLocation getExprLoc() const LLVM_READONLY
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic exp...
llvm::Value * EmitScalarExpr(const Expr *E, bool IgnoreResultAssign=false)
EmitScalarExpr - Emit the computation of the specified expression of LLVM scalar type, returning the result.
FunctionArgList - Type for representing both the decl and type of parameters to a function...
llvm::Value * getScalarVal() const
getScalarVal() - Return the Value* of this scalar value.
CGFunctionInfo - Class to encapsulate the information about a function definition.
This class organizes the cross-function state that is used while generating LLVM code.
CGOpenMPRuntime & getOpenMPRuntime()
Return a reference to the configured OpenMP runtime.
Dataflow Directional Tag Classes.
const Expr * getInit() const
llvm::Constant * getPointer() const
llvm::LoadInst * CreateLoad(Address Addr, const llvm::Twine &Name="")
virtual void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D, llvm::FunctionCallee Dtor, llvm::Constant *Addr)=0
Emit code to force the execution of a destructor during global teardown.
static void EmitDeclDestroy(CodeGenFunction &CGF, const VarDecl &D, ConstantAddress Addr)
Emit code to cause the destruction of the given variable with static storage duration.
llvm::Function * getIntrinsic(unsigned IID, ArrayRef< llvm::Type *> Tys=None)
llvm::StoreInst * CreateStore(llvm::Value *Val, Address Addr, bool IsVolatile=false)
static AggValueSlot forLValue(const LValue &LV, IsDestructed_t isDestructed, NeedsGCBarriers_t needsGC, IsAliased_t isAliased, Overlap_t mayOverlap, IsZeroed_t isZeroed=IsNotZeroed, IsSanitizerChecked_t isChecked=IsNotSanitizerChecked)
LValue MakeAddrLValue(Address Addr, QualType T, AlignmentSource Source=AlignmentSource::Type)
llvm::Function * createAtExitStub(const VarDecl &VD, llvm::FunctionCallee Dtor, llvm::Constant *Addr)
Create a stub function, suitable for being passed to atexit, which passes the given address to the gi...
void EmitAggExpr(const Expr *E, AggValueSlot AS)
EmitAggExpr - Emit the computation of the specified expression of aggregate type. ...
virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, llvm::Value *src, Address dest)=0
virtual bool emitDeclareTargetVarDefinition(const VarDecl *VD, llvm::GlobalVariable *Addr, bool PerformInit)
Emit a code for initialization of declare target variable.
CodeGenTypes & getTypes() const
llvm::PointerType * Int8PtrTy
void EmitScalarInit(const Expr *init, const ValueDecl *D, LValue lvalue, bool capturedByInit)
Internal linkage, which indicates that the entity can be referred to from within the translation unit...
llvm::FunctionCallee CreateRuntimeFunction(llvm::FunctionType *Ty, StringRef Name, llvm::AttributeList ExtraAttrs=llvm::AttributeList(), bool Local=false)
Create or return a runtime function declaration with the specified type and name. ...
void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false)
EmitBlock - Emit the given block.
static void EmitDeclInit(CodeGenFunction &CGF, const VarDecl &D, ConstantAddress DeclPtr)
Represents a C++ struct/union/class.
llvm::Function * CreateGlobalInitOrDestructFunction(llvm::FunctionType *ty, const Twine &name, const CGFunctionInfo &FI, SourceLocation Loc=SourceLocation(), bool TLS=false)
A specialization of Address that requires the address to be an LLVM Constant.
void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, const std::vector< std::tuple< llvm::FunctionType *, llvm::WeakTrackingVH, llvm::Constant *>> &DtorsAndObjects)
GenerateCXXGlobalDtorsFunc - Generates code for destroying global variables.
CGCXXABI & getCXXABI() const
void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr)
CharUnits getTypeSizeInChars(QualType T) const
Return the size of the specified (complete) type T, in characters.
static ApplyDebugLocation CreateEmpty(CodeGenFunction &CGF)
Set the IRBuilder to not attach debug locations.
bool isLocalVarDecl() const
Returns true for local variable declarations other than parameters.
LValue - This represents an lvalue references.
const LangOptions & getLangOpts() const
unsigned getTargetAddressSpace(QualType T) const
llvm::CallInst * EmitNounwindRuntimeCall(llvm::FunctionCallee callee, const Twine &name="")
LLVM_READONLY bool isPreprocessingNumberBody(unsigned char c)
Return true if this is the body character of a C preprocessing number, which is [a-zA-Z0-9_.
const LangOptions & getLangOpts() const
SourceLocation getLocation() const
bool isExternallyVisible() const
static void EmitDeclInvariant(CodeGenFunction &CGF, const VarDecl &D, llvm::Constant *Addr)
Emit code to cause the variable at the given address to be considered as constant from this point onw...
static OMPLinearClause * Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc, OpenMPLinearClauseKind Modifier, SourceLocation ModifierLoc, SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef< Expr *> VL, ArrayRef< Expr *> PL, ArrayRef< Expr *> IL, Expr *Step, Expr *CalcStep, Stmt *PreInit, Expr *PostUpdate)
Creates clause with a list of variables VL and a linear step Step.
void Destroyer(CodeGenFunction &CGF, Address addr, QualType ty)
static CharUnits getDeclAlign(Expr *E, CharUnits TypeAlign, ASTContext &Context)
A helper function to get the alignment of a Decl referred to by DeclRefExpr or MemberExpr.
llvm::FunctionType * GetFunctionType(const CGFunctionInfo &Info)
GetFunctionType - Get the LLVM function type for.
bool isNoDestroy(const ASTContext &) const
Do we need to emit an exit-time destructor for this variable?