19 #include "llvm/ADT/StringExtras.h" 20 #include "llvm/IR/Intrinsics.h" 21 #include "llvm/IR/MDBuilder.h" 22 #include "llvm/Support/Path.h" 24 using namespace clang;
25 using namespace CodeGen;
32 "VarDecl must have global or local (in the case of OpenCL) storage!");
34 "Should not call EmitDeclInit on a reference!");
63 llvm_unreachable(
"bad evaluation kind");
91 assert(!D.
getTLSKind() &&
"should have rejected this");
95 llvm::FunctionCallee Func;
96 llvm::Constant *Argument;
106 bool CanRegisterDestructor =
114 if (Record && (CanRegisterDestructor || UsingExternalHelper)) {
126 Argument = llvm::ConstantExpr::getBitCast(Addr.
getPointer(), DestTy);
130 Argument = llvm::ConstantPointerNull::get(DestTy);
132 Argument = llvm::ConstantExpr::getBitCast(
140 Argument = llvm::Constant::getNullValue(CGF.
Int8PtrTy);
149 llvm::Constant *Addr) {
163 llvm::Function *InvariantStart =
CGM.
getIntrinsic(InvStartID, ObjectPtr);
168 llvm::ConstantExpr::getBitCast(Addr,
Int8PtrTy)};
169 Builder.CreateCall(InvariantStart, Args);
173 llvm::Constant *DeclPtr,
195 unsigned ActualAddrSpace = DeclPtr->getType()->getPointerAddressSpace();
196 if (ActualAddrSpace != ExpectedAddrSpace) {
198 llvm::PointerType *PTy = llvm::PointerType::get(LTy, ExpectedAddrSpace);
199 DeclPtr = llvm::ConstantExpr::getAddrSpaceCast(DeclPtr, PTy);
206 D.
hasAttr<OMPThreadPrivateDeclAttr>()) {
208 &D, DeclAddr, D.
getAttr<OMPThreadPrivateDeclAttr>()->getLocation(),
220 assert(PerformInit &&
"cannot have constant initializer which needs " 221 "destruction for reference");
229 llvm::FunctionCallee dtor,
230 llvm::Constant *addr) {
232 llvm::FunctionType *ty = llvm::FunctionType::get(
CGM.
VoidTy,
false);
235 llvm::raw_svector_ostream Out(FnName);
248 llvm::CallInst *call = CGF.
Builder.CreateCall(dtor, addr);
251 if (
auto *dtorFn = dyn_cast<llvm::Function>(
252 dtor.getCallee()->stripPointerCastsAndAliases()))
253 call->setCallingConv(dtorFn->getCallingConv());
262 llvm::FunctionCallee dtor,
263 llvm::Constant *addr) {
271 llvm::FunctionType *atexitTy =
272 llvm::FunctionType::get(
IntTy, dtorStub->getType(),
false);
274 llvm::FunctionCallee atexit =
277 if (llvm::Function *atexitFn = dyn_cast<llvm::Function>(atexit.getCallee()))
278 atexitFn->setDoesNotThrow();
284 llvm::GlobalVariable *DeclPtr,
291 "this initialization requires a guard variable, which " 292 "the kernel does not support");
298 llvm::BasicBlock *InitBlock,
299 llvm::BasicBlock *NoInitBlock,
306 static const uint64_t InitsPerTLSVar = 1024;
307 static const uint64_t InitsPerLocalVar = 1024 * 1024;
309 llvm::MDNode *Weights;
321 NumInits = InitsPerTLSVar;
323 NumInits = InitsPerLocalVar;
328 Weights = MDHelper.createBranchWeights(1, NumInits - 1);
331 Builder.CreateCondBr(NeedsInit, InitBlock, NoInitBlock, Weights);
335 llvm::FunctionType *FTy,
const Twine &Name,
const CGFunctionInfo &FI,
342 if (
const char *Section =
getTarget().getStaticInitSectionSpecifier())
343 Fn->setSection(Section);
346 SetInternalFunctionAttributes(
GlobalDecl(), Fn, FI);
351 Fn->setDoesNotThrow();
353 if (
getLangOpts().Sanitize.has(SanitizerKind::Address) &&
354 !isInSanitizerBlacklist(SanitizerKind::Address, Fn, Loc))
355 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
357 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelAddress) &&
358 !isInSanitizerBlacklist(SanitizerKind::KernelAddress, Fn, Loc))
359 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
361 if (
getLangOpts().Sanitize.has(SanitizerKind::HWAddress) &&
362 !isInSanitizerBlacklist(SanitizerKind::HWAddress, Fn, Loc))
363 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
365 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelHWAddress) &&
366 !isInSanitizerBlacklist(SanitizerKind::KernelHWAddress, Fn, Loc))
367 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
369 if (
getLangOpts().Sanitize.has(SanitizerKind::MemTag) &&
370 !isInSanitizerBlacklist(SanitizerKind::MemTag, Fn, Loc))
371 Fn->addFnAttr(llvm::Attribute::SanitizeMemTag);
373 if (
getLangOpts().Sanitize.has(SanitizerKind::Thread) &&
374 !isInSanitizerBlacklist(SanitizerKind::Thread, Fn, Loc))
375 Fn->addFnAttr(llvm::Attribute::SanitizeThread);
377 if (
getLangOpts().Sanitize.has(SanitizerKind::Memory) &&
378 !isInSanitizerBlacklist(SanitizerKind::Memory, Fn, Loc))
379 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
381 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelMemory) &&
382 !isInSanitizerBlacklist(SanitizerKind::KernelMemory, Fn, Loc))
383 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
385 if (
getLangOpts().Sanitize.has(SanitizerKind::SafeStack) &&
386 !isInSanitizerBlacklist(SanitizerKind::SafeStack, Fn, Loc))
387 Fn->addFnAttr(llvm::Attribute::SafeStack);
389 if (
getLangOpts().Sanitize.has(SanitizerKind::ShadowCallStack) &&
390 !isInSanitizerBlacklist(SanitizerKind::ShadowCallStack, Fn, Loc))
391 Fn->addFnAttr(llvm::Attribute::ShadowCallStack);
393 auto RASignKind = getCodeGenOpts().getSignReturnAddress();
395 Fn->addFnAttr(
"sign-return-address",
399 auto RASignKey = getCodeGenOpts().getSignReturnAddressKey();
400 Fn->addFnAttr(
"sign-return-address-key",
401 RASignKey == CodeGenOptions::SignReturnAddressKeyValue::AKey
406 if (getCodeGenOpts().BranchTargetEnforcement)
407 Fn->addFnAttr(
"branch-target-enforcement");
415 void CodeGenModule::EmitPointerToInitFunc(
const VarDecl *D,
416 llvm::GlobalVariable *GV,
417 llvm::Function *InitFunc,
419 llvm::GlobalVariable *PtrArray =
new llvm::GlobalVariable(
420 TheModule, InitFunc->getType(),
true,
421 llvm::GlobalValue::PrivateLinkage, InitFunc,
"__cxx_init_fn_ptr");
422 PtrArray->setSection(ISA->getSection());
423 addUsedGlobal(PtrArray);
426 if (llvm::Comdat *C = GV->getComdat())
427 PtrArray->setComdat(C);
431 CodeGenModule::EmitCXXGlobalVarDeclInitFunc(
const VarDecl *D,
432 llvm::GlobalVariable *Addr,
441 (D->
hasAttr<CUDADeviceAttr>() || D->
hasAttr<CUDAConstantAttr>() ||
450 auto I = DelayedCXXInitPosition.find(D);
451 if (I != DelayedCXXInitPosition.end() && I->second == ~0U)
454 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
457 llvm::raw_svector_ostream Out(FnName);
458 getCXXABI().getMangleContext().mangleDynamicInitializer(D, Out);
463 CreateGlobalInitOrDestructFunction(FTy, FnName.str(),
467 auto *ISA = D->
getAttr<InitSegAttr>();
471 llvm::GlobalVariable *COMDATKey =
478 CXXThreadLocalInits.push_back(Fn);
479 CXXThreadLocalInitVars.push_back(D);
480 }
else if (PerformInit && ISA) {
481 EmitPointerToInitFunc(D, Addr, Fn, ISA);
482 }
else if (
auto *IPA = D->
getAttr<InitPriorityAttr>()) {
484 PrioritizedCXXGlobalInits.push_back(std::make_pair(Key, Fn));
499 AddGlobalCtor(Fn, 65535, COMDATKey);
500 if (
getTarget().getCXXABI().isMicrosoft() && COMDATKey) {
503 addUsedGlobal(COMDATKey);
505 }
else if (D->
hasAttr<SelectAnyAttr>()) {
509 AddGlobalCtor(Fn, 65535, COMDATKey);
511 I = DelayedCXXInitPosition.find(D);
512 if (I == DelayedCXXInitPosition.end()) {
513 CXXGlobalInits.push_back(Fn);
514 }
else if (I->second != ~0U) {
515 assert(I->second < CXXGlobalInits.size() &&
516 CXXGlobalInits[I->second] ==
nullptr);
517 CXXGlobalInits[I->second] = Fn;
522 DelayedCXXInitPosition[D] = ~0U;
525 void CodeGenModule::EmitCXXThreadLocalInitFunc() {
526 getCXXABI().EmitThreadLocalInitFuncs(
527 *
this, CXXThreadLocals, CXXThreadLocalInits, CXXThreadLocalInitVars);
529 CXXThreadLocalInits.clear();
530 CXXThreadLocalInitVars.clear();
531 CXXThreadLocals.clear();
535 CodeGenModule::EmitCXXGlobalInitFunc() {
536 while (!CXXGlobalInits.empty() && !CXXGlobalInits.back())
537 CXXGlobalInits.pop_back();
539 if (CXXGlobalInits.empty() && PrioritizedCXXGlobalInits.empty())
542 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
546 if (!PrioritizedCXXGlobalInits.empty()) {
548 llvm::array_pod_sort(PrioritizedCXXGlobalInits.begin(),
549 PrioritizedCXXGlobalInits.end());
554 I = PrioritizedCXXGlobalInits.begin(),
555 E = PrioritizedCXXGlobalInits.end(); I != E; ) {
557 PrioE = std::upper_bound(I + 1, E, *I, GlobalInitPriorityCmp());
559 LocalCXXGlobalInits.clear();
560 unsigned Priority = I->first.priority;
563 std::string PrioritySuffix = llvm::utostr(Priority);
565 PrioritySuffix = std::string(6-PrioritySuffix.size(),
'0')+PrioritySuffix;
566 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
567 FTy,
"_GLOBAL__I_" + PrioritySuffix, FI);
569 for (; I < PrioE; ++I)
570 LocalCXXGlobalInits.push_back(I->second);
573 AddGlobalCtor(Fn, Priority);
575 PrioritizedCXXGlobalInits.clear();
582 if (FileName.empty())
585 for (
size_t i = 0; i < FileName.size(); ++i) {
592 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
593 FTy, llvm::Twine(
"_GLOBAL__sub_I_", FileName), FI);
607 GenOpenCLArgMetadata(Fn);
608 Fn->setCallingConv(llvm::CallingConv::SPIR_KERNEL);
611 CXXGlobalInits.clear();
614 void CodeGenModule::EmitCXXGlobalDtorFunc() {
615 if (CXXGlobalDtors.empty())
618 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
623 CreateGlobalInitOrDestructFunction(FTy,
"_GLOBAL__D_a", FI);
632 llvm::GlobalVariable *Addr,
652 if (Addr->hasWeakLinkage() || Addr->hasLinkOnceLinkage() ||
674 llvm::BasicBlock *ExitBlock =
nullptr;
680 "guard.uninitialized");
707 for (
unsigned i = 0, e = Decls.size(); i != e; ++i)
711 Scope.ForceCleanup();
724 const std::vector<std::tuple<llvm::FunctionType *, llvm::WeakTrackingVH,
725 llvm::Constant *>> &DtorsAndObjects) {
734 for (
unsigned i = 0, e = DtorsAndObjects.size(); i != e; ++i) {
735 llvm::FunctionType *CalleeTy;
738 std::tie(CalleeTy, Callee, Arg) = DtorsAndObjects[e - i - 1];
739 llvm::CallInst *CI =
Builder.CreateCall(CalleeTy, Callee, Arg);
741 if (llvm::Function *F = dyn_cast<llvm::Function>(Callee))
742 CI->setCallingConv(F->getCallingConv());
754 bool useEHCleanupForArray,
const VarDecl *VD) {
758 args.push_back(&Dst);
764 FTy,
"__cxx_global_array_dtor", FI, VD->
getLocation());
770 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.
QualType::DestructionKind needsDestruction(const ASTContext &Ctx) const
Do we need to emit an exit-time destructor for this variable, and if so, what kind?
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.
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...
LangAS getAddressSpace() const
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
const TargetCodeGenInfo & getTargetCodeGenInfo()
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.
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.
TLS with a dynamic initializer.
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. ...
GVALinkage GetGVALinkageForVariable(const VarDecl *VD)
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)
llvm::FunctionCallee getAddrAndTypeOfCXXStructor(GlobalDecl GD, const CGFunctionInfo *FnInfo=nullptr, llvm::FunctionType *FnType=nullptr, bool DontDefer=false, ForDefinition_t IsForDefinition=NotForDefinition)
Represents a C++ struct/union/class.
llvm::Function * CreateGlobalInitOrDestructFunction(llvm::FunctionType *ty, const Twine &name, const CGFunctionInfo &FI, SourceLocation Loc=SourceLocation(), bool TLS=false)
Qualifiers getQualifiers() const
Retrieve the set of qualifiers applied to this type.
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
virtual LangAS getAddrSpaceOfCxaAtexitPtrParam() const
Get address space of pointer parameter for __cxa_atexit.
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.