20 #include "llvm/ADT/StringExtras.h" 21 #include "llvm/IR/Intrinsics.h" 22 #include "llvm/IR/MDBuilder.h" 23 #include "llvm/Support/Path.h" 25 using namespace clang;
26 using namespace CodeGen;
33 "VarDecl must have global or local (in the case of OpenCL) storage!");
35 "Should not call EmitDeclInit on a reference!");
65 llvm_unreachable(
"bad evaluation kind");
93 assert(!D.
getTLSKind() &&
"should have rejected this");
97 llvm::FunctionCallee Func;
98 llvm::Constant *Argument;
108 bool CanRegisterDestructor =
116 if (Record && (CanRegisterDestructor || UsingExternalHelper)) {
128 Argument = llvm::ConstantExpr::getBitCast(Addr.
getPointer(), DestTy);
132 Argument = llvm::ConstantPointerNull::get(DestTy);
134 Argument = llvm::ConstantExpr::getBitCast(
142 Argument = llvm::Constant::getNullValue(CGF.
Int8PtrTy);
151 llvm::Constant *Addr) {
165 llvm::Function *InvariantStart =
CGM.
getIntrinsic(InvStartID, ObjectPtr);
170 llvm::ConstantExpr::getBitCast(Addr,
Int8PtrTy)};
171 Builder.CreateCall(InvariantStart, Args);
175 llvm::Constant *DeclPtr,
197 unsigned ActualAddrSpace = DeclPtr->getType()->getPointerAddressSpace();
198 if (ActualAddrSpace != ExpectedAddrSpace) {
200 llvm::PointerType *PTy = llvm::PointerType::get(LTy, ExpectedAddrSpace);
201 DeclPtr = llvm::ConstantExpr::getAddrSpaceCast(DeclPtr, PTy);
208 D.
hasAttr<OMPThreadPrivateDeclAttr>()) {
210 &D, DeclAddr, D.
getAttr<OMPThreadPrivateDeclAttr>()->getLocation(),
222 assert(PerformInit &&
"cannot have constant initializer which needs " 223 "destruction for reference");
231 llvm::FunctionCallee dtor,
232 llvm::Constant *addr) {
234 llvm::FunctionType *ty = llvm::FunctionType::get(
CGM.
VoidTy,
false);
237 llvm::raw_svector_ostream Out(FnName);
250 llvm::CallInst *call = CGF.
Builder.CreateCall(dtor, addr);
253 if (
auto *dtorFn = dyn_cast<llvm::Function>(
254 dtor.getCallee()->stripPointerCastsAndAliases()))
255 call->setCallingConv(dtorFn->getCallingConv());
264 llvm::FunctionCallee dtor,
265 llvm::Constant *addr) {
273 llvm::FunctionType *atexitTy =
274 llvm::FunctionType::get(
IntTy, dtorStub->getType(),
false);
276 llvm::FunctionCallee atexit =
279 if (llvm::Function *atexitFn = dyn_cast<llvm::Function>(atexit.getCallee()))
280 atexitFn->setDoesNotThrow();
286 llvm::GlobalVariable *DeclPtr,
293 "this initialization requires a guard variable, which " 294 "the kernel does not support");
300 llvm::BasicBlock *InitBlock,
301 llvm::BasicBlock *NoInitBlock,
308 static const uint64_t InitsPerTLSVar = 1024;
309 static const uint64_t InitsPerLocalVar = 1024 * 1024;
311 llvm::MDNode *Weights;
323 NumInits = InitsPerTLSVar;
325 NumInits = InitsPerLocalVar;
330 Weights = MDHelper.createBranchWeights(1, NumInits - 1);
333 Builder.CreateCondBr(NeedsInit, InitBlock, NoInitBlock, Weights);
337 llvm::FunctionType *FTy,
const Twine &Name,
const CGFunctionInfo &FI,
344 if (
const char *Section =
getTarget().getStaticInitSectionSpecifier())
345 Fn->setSection(Section);
348 SetInternalFunctionAttributes(
GlobalDecl(), Fn, FI);
353 Fn->setDoesNotThrow();
355 if (
getLangOpts().Sanitize.has(SanitizerKind::Address) &&
356 !isInSanitizerBlacklist(SanitizerKind::Address, Fn, Loc))
357 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
359 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelAddress) &&
360 !isInSanitizerBlacklist(SanitizerKind::KernelAddress, Fn, Loc))
361 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
363 if (
getLangOpts().Sanitize.has(SanitizerKind::HWAddress) &&
364 !isInSanitizerBlacklist(SanitizerKind::HWAddress, Fn, Loc))
365 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
367 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelHWAddress) &&
368 !isInSanitizerBlacklist(SanitizerKind::KernelHWAddress, Fn, Loc))
369 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
371 if (
getLangOpts().Sanitize.has(SanitizerKind::MemTag) &&
372 !isInSanitizerBlacklist(SanitizerKind::MemTag, Fn, Loc))
373 Fn->addFnAttr(llvm::Attribute::SanitizeMemTag);
375 if (
getLangOpts().Sanitize.has(SanitizerKind::Thread) &&
376 !isInSanitizerBlacklist(SanitizerKind::Thread, Fn, Loc))
377 Fn->addFnAttr(llvm::Attribute::SanitizeThread);
379 if (
getLangOpts().Sanitize.has(SanitizerKind::Memory) &&
380 !isInSanitizerBlacklist(SanitizerKind::Memory, Fn, Loc))
381 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
383 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelMemory) &&
384 !isInSanitizerBlacklist(SanitizerKind::KernelMemory, Fn, Loc))
385 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
387 if (
getLangOpts().Sanitize.has(SanitizerKind::SafeStack) &&
388 !isInSanitizerBlacklist(SanitizerKind::SafeStack, Fn, Loc))
389 Fn->addFnAttr(llvm::Attribute::SafeStack);
391 if (
getLangOpts().Sanitize.has(SanitizerKind::ShadowCallStack) &&
392 !isInSanitizerBlacklist(SanitizerKind::ShadowCallStack, Fn, Loc))
393 Fn->addFnAttr(llvm::Attribute::ShadowCallStack);
395 auto RASignKind = getCodeGenOpts().getSignReturnAddress();
397 Fn->addFnAttr(
"sign-return-address",
401 auto RASignKey = getCodeGenOpts().getSignReturnAddressKey();
402 Fn->addFnAttr(
"sign-return-address-key",
408 if (getCodeGenOpts().BranchTargetEnforcement)
409 Fn->addFnAttr(
"branch-target-enforcement");
417 void CodeGenModule::EmitPointerToInitFunc(
const VarDecl *D,
418 llvm::GlobalVariable *GV,
419 llvm::Function *InitFunc,
421 llvm::GlobalVariable *PtrArray =
new llvm::GlobalVariable(
422 TheModule, InitFunc->getType(),
true,
423 llvm::GlobalValue::PrivateLinkage, InitFunc,
"__cxx_init_fn_ptr");
424 PtrArray->setSection(ISA->getSection());
425 addUsedGlobal(PtrArray);
428 if (llvm::Comdat *C = GV->getComdat())
429 PtrArray->setComdat(C);
433 CodeGenModule::EmitCXXGlobalVarDeclInitFunc(
const VarDecl *D,
434 llvm::GlobalVariable *Addr,
443 (D->
hasAttr<CUDADeviceAttr>() || D->
hasAttr<CUDAConstantAttr>() ||
452 auto I = DelayedCXXInitPosition.find(D);
453 if (I != DelayedCXXInitPosition.end() && I->second == ~0U)
456 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
459 llvm::raw_svector_ostream Out(FnName);
460 getCXXABI().getMangleContext().mangleDynamicInitializer(D, Out);
465 CreateGlobalInitOrDestructFunction(FTy, FnName.str(),
469 auto *ISA = D->
getAttr<InitSegAttr>();
473 llvm::GlobalVariable *COMDATKey =
480 CXXThreadLocalInits.push_back(Fn);
481 CXXThreadLocalInitVars.push_back(D);
482 }
else if (PerformInit && ISA) {
483 EmitPointerToInitFunc(D, Addr, Fn, ISA);
484 }
else if (
auto *IPA = D->
getAttr<InitPriorityAttr>()) {
486 PrioritizedCXXGlobalInits.push_back(std::make_pair(Key, Fn));
501 AddGlobalCtor(Fn, 65535, COMDATKey);
502 if (
getTarget().getCXXABI().isMicrosoft() && COMDATKey) {
505 addUsedGlobal(COMDATKey);
507 }
else if (D->
hasAttr<SelectAnyAttr>()) {
511 AddGlobalCtor(Fn, 65535, COMDATKey);
513 I = DelayedCXXInitPosition.find(D);
514 if (I == DelayedCXXInitPosition.end()) {
515 CXXGlobalInits.push_back(Fn);
516 }
else if (I->second != ~0U) {
517 assert(I->second < CXXGlobalInits.size() &&
518 CXXGlobalInits[I->second] ==
nullptr);
519 CXXGlobalInits[I->second] = Fn;
524 DelayedCXXInitPosition[D] = ~0U;
527 void CodeGenModule::EmitCXXThreadLocalInitFunc() {
528 getCXXABI().EmitThreadLocalInitFuncs(
529 *
this, CXXThreadLocals, CXXThreadLocalInits, CXXThreadLocalInitVars);
531 CXXThreadLocalInits.clear();
532 CXXThreadLocalInitVars.clear();
533 CXXThreadLocals.clear();
537 CodeGenModule::EmitCXXGlobalInitFunc() {
538 while (!CXXGlobalInits.empty() && !CXXGlobalInits.back())
539 CXXGlobalInits.pop_back();
541 if (CXXGlobalInits.empty() && PrioritizedCXXGlobalInits.empty())
544 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
548 if (!PrioritizedCXXGlobalInits.empty()) {
550 llvm::array_pod_sort(PrioritizedCXXGlobalInits.begin(),
551 PrioritizedCXXGlobalInits.end());
556 I = PrioritizedCXXGlobalInits.begin(),
557 E = PrioritizedCXXGlobalInits.end(); I != E; ) {
559 PrioE = std::upper_bound(I + 1, E, *I, GlobalInitPriorityCmp());
561 LocalCXXGlobalInits.clear();
562 unsigned Priority = I->first.priority;
565 std::string PrioritySuffix = llvm::utostr(Priority);
567 PrioritySuffix = std::string(6-PrioritySuffix.size(),
'0')+PrioritySuffix;
568 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
569 FTy,
"_GLOBAL__I_" + PrioritySuffix, FI);
571 for (; I < PrioE; ++I)
572 LocalCXXGlobalInits.push_back(I->second);
575 AddGlobalCtor(Fn, Priority);
577 PrioritizedCXXGlobalInits.clear();
584 if (FileName.empty())
587 for (
size_t i = 0; i < FileName.size(); ++i) {
594 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
595 FTy, llvm::Twine(
"_GLOBAL__sub_I_", FileName), FI);
609 GenOpenCLArgMetadata(Fn);
610 Fn->setCallingConv(llvm::CallingConv::SPIR_KERNEL);
614 Fn->setCallingConv(llvm::CallingConv::AMDGPU_KERNEL);
615 Fn->addFnAttr(
"device-init");
618 CXXGlobalInits.clear();
621 void CodeGenModule::EmitCXXGlobalDtorFunc() {
622 if (CXXGlobalDtors.empty())
625 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
630 CreateGlobalInitOrDestructFunction(FTy,
"_GLOBAL__D_a", FI);
639 llvm::GlobalVariable *Addr,
659 if (Addr->hasWeakLinkage() || Addr->hasLinkOnceLinkage() ||
681 llvm::BasicBlock *ExitBlock =
nullptr;
687 "guard.uninitialized");
714 for (
unsigned i = 0, e = Decls.size(); i != e; ++i)
718 Scope.ForceCleanup();
731 const std::vector<std::tuple<llvm::FunctionType *, llvm::WeakTrackingVH,
732 llvm::Constant *>> &DtorsAndObjects) {
741 for (
unsigned i = 0, e = DtorsAndObjects.size(); i != e; ++i) {
742 llvm::FunctionType *CalleeTy;
745 std::tie(CalleeTy, Callee, Arg) = DtorsAndObjects[e - i - 1];
746 llvm::CallInst *CI =
Builder.CreateCall(CalleeTy, Callee, Arg);
748 if (llvm::Function *F = dyn_cast<llvm::Function>(Callee))
749 CI->setCallingConv(F->getCallingConv());
761 bool useEHCleanupForArray,
const VarDecl *VD) {
765 args.push_back(&Dst);
771 FTy,
"__cxx_global_array_dtor", FI, VD->
getLocation());
777 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
Would the destruction of this variable have any effect, 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...
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.
static AggValueSlot forLValue(const LValue &LV, CodeGenFunction &CGF, IsDestructed_t isDestructed, NeedsGCBarriers_t needsGC, IsAliased_t isAliased, Overlap_t mayOverlap, IsZeroed_t isZeroed=IsNotZeroed, IsSanitizerChecked_t isChecked=IsNotSanitizerChecked)
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.
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::FunctionCallee CreateRuntimeFunction(llvm::FunctionType *Ty, StringRef Name, llvm::AttributeList ExtraAttrs=llvm::AttributeList(), bool Local=false, bool AssumeConvergent=false)
Create or return a runtime function declaration with the specified type and name. ...
llvm::Function * getIntrinsic(unsigned IID, ArrayRef< llvm::Type *> Tys=None)
llvm::StoreInst * CreateStore(llvm::Value *Val, Address Addr, bool IsVolatile=false)
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...
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.