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;
31 "Should not call EmitDeclInit on a reference!");
60 llvm_unreachable(
"bad evaluation kind");
85 assert(!D.
getTLSKind() &&
"should have rejected this");
89 llvm::Constant *
function;
90 llvm::Constant *argument;
96 bool CanRegisterDestructor =
104 if (Record && (CanRegisterDestructor || UsingExternalHelper)) {
109 argument = llvm::ConstantExpr::getBitCast(
117 argument = llvm::Constant::getNullValue(CGF.
Int8PtrTy);
126 llvm::Constant *Addr) {
135 llvm::Constant *InvariantStart = CGF.
CGM.
getIntrinsic(InvStartID, ObjectPtr);
141 llvm::ConstantExpr::getBitCast(Addr, CGF.
Int8PtrTy)};
142 CGF.
Builder.CreateCall(InvariantStart, Args);
146 llvm::Constant *DeclPtr,
168 unsigned ActualAddrSpace = DeclPtr->getType()->getPointerAddressSpace();
169 if (ActualAddrSpace != ExpectedAddrSpace) {
171 llvm::PointerType *PTy = llvm::PointerType::get(LTy, ExpectedAddrSpace);
172 DeclPtr = llvm::ConstantExpr::getAddrSpaceCast(DeclPtr, PTy);
179 D.
hasAttr<OMPThreadPrivateDeclAttr>()) {
181 &D, DeclAddr, D.
getAttr<OMPThreadPrivateDeclAttr>()->getLocation(),
193 assert(PerformInit &&
"cannot have constant initializer which needs " 194 "destruction for reference");
202 llvm::Constant *dtor,
203 llvm::Constant *addr) {
205 llvm::FunctionType *ty = llvm::FunctionType::get(
CGM.
VoidTy,
false);
208 llvm::raw_svector_ostream Out(FnName);
221 llvm::CallInst *call = CGF.
Builder.CreateCall(dtor, addr);
224 if (llvm::Function *dtorFn =
225 dyn_cast<llvm::Function>(dtor->stripPointerCasts()))
226 call->setCallingConv(dtorFn->getCallingConv());
235 llvm::Constant *dtor,
236 llvm::Constant *addr) {
244 llvm::FunctionType *atexitTy =
245 llvm::FunctionType::get(
IntTy, dtorStub->getType(),
false);
247 llvm::Constant *atexit =
250 if (llvm::Function *atexitFn = dyn_cast<llvm::Function>(atexit))
251 atexitFn->setDoesNotThrow();
257 llvm::GlobalVariable *DeclPtr,
264 "this initialization requires a guard variable, which " 265 "the kernel does not support");
271 llvm::BasicBlock *InitBlock,
272 llvm::BasicBlock *NoInitBlock,
279 static const uint64_t InitsPerTLSVar = 1024;
280 static const uint64_t InitsPerLocalVar = 1024 * 1024;
282 llvm::MDNode *Weights;
294 NumInits = InitsPerTLSVar;
296 NumInits = InitsPerLocalVar;
301 Weights = MDHelper.createBranchWeights(1, NumInits - 1);
304 Builder.CreateCondBr(NeedsInit, InitBlock, NoInitBlock, Weights);
308 llvm::FunctionType *FTy,
const Twine &Name,
const CGFunctionInfo &FI,
315 if (
const char *Section =
getTarget().getStaticInitSectionSpecifier())
316 Fn->setSection(Section);
319 SetInternalFunctionAttributes(
GlobalDecl(), Fn, FI);
324 Fn->setDoesNotThrow();
326 if (
getLangOpts().Sanitize.has(SanitizerKind::Address) &&
327 !isInSanitizerBlacklist(SanitizerKind::Address, Fn, Loc))
328 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
330 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelAddress) &&
331 !isInSanitizerBlacklist(SanitizerKind::KernelAddress, Fn, Loc))
332 Fn->addFnAttr(llvm::Attribute::SanitizeAddress);
334 if (
getLangOpts().Sanitize.has(SanitizerKind::HWAddress) &&
335 !isInSanitizerBlacklist(SanitizerKind::HWAddress, Fn, Loc))
336 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
338 if (
getLangOpts().Sanitize.has(SanitizerKind::KernelHWAddress) &&
339 !isInSanitizerBlacklist(SanitizerKind::KernelHWAddress, Fn, Loc))
340 Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
342 if (
getLangOpts().Sanitize.has(SanitizerKind::Thread) &&
343 !isInSanitizerBlacklist(SanitizerKind::Thread, Fn, Loc))
344 Fn->addFnAttr(llvm::Attribute::SanitizeThread);
346 if (
getLangOpts().Sanitize.has(SanitizerKind::Memory) &&
347 !isInSanitizerBlacklist(SanitizerKind::Memory, Fn, Loc))
348 Fn->addFnAttr(llvm::Attribute::SanitizeMemory);
350 if (
getLangOpts().Sanitize.has(SanitizerKind::SafeStack) &&
351 !isInSanitizerBlacklist(SanitizerKind::SafeStack, Fn, Loc))
352 Fn->addFnAttr(llvm::Attribute::SafeStack);
354 if (
getLangOpts().Sanitize.has(SanitizerKind::ShadowCallStack) &&
355 !isInSanitizerBlacklist(SanitizerKind::ShadowCallStack, Fn, Loc))
356 Fn->addFnAttr(llvm::Attribute::ShadowCallStack);
364 void CodeGenModule::EmitPointerToInitFunc(
const VarDecl *D,
365 llvm::GlobalVariable *GV,
366 llvm::Function *InitFunc,
368 llvm::GlobalVariable *PtrArray =
new llvm::GlobalVariable(
369 TheModule, InitFunc->getType(),
true,
370 llvm::GlobalValue::PrivateLinkage, InitFunc,
"__cxx_init_fn_ptr");
371 PtrArray->setSection(ISA->getSection());
372 addUsedGlobal(PtrArray);
375 if (llvm::Comdat *C = GV->getComdat())
376 PtrArray->setComdat(C);
380 CodeGenModule::EmitCXXGlobalVarDeclInitFunc(
const VarDecl *D,
381 llvm::GlobalVariable *Addr,
390 (D->
hasAttr<CUDADeviceAttr>() || D->
hasAttr<CUDAConstantAttr>() ||
399 auto I = DelayedCXXInitPosition.find(D);
400 if (I != DelayedCXXInitPosition.end() && I->second == ~0U)
403 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
406 llvm::raw_svector_ostream Out(FnName);
407 getCXXABI().getMangleContext().mangleDynamicInitializer(D, Out);
412 CreateGlobalInitOrDestructFunction(FTy, FnName.str(),
416 auto *ISA = D->
getAttr<InitSegAttr>();
420 llvm::GlobalVariable *COMDATKey =
427 CXXThreadLocalInits.push_back(Fn);
428 CXXThreadLocalInitVars.push_back(D);
429 }
else if (PerformInit && ISA) {
430 EmitPointerToInitFunc(D, Addr, Fn, ISA);
431 }
else if (
auto *IPA = D->
getAttr<InitPriorityAttr>()) {
433 PrioritizedCXXGlobalInits.push_back(std::make_pair(Key, Fn));
447 AddGlobalCtor(Fn, 65535, COMDATKey);
448 }
else if (D->
hasAttr<SelectAnyAttr>()) {
452 AddGlobalCtor(Fn, 65535, COMDATKey);
454 I = DelayedCXXInitPosition.find(D);
455 if (I == DelayedCXXInitPosition.end()) {
456 CXXGlobalInits.push_back(Fn);
457 }
else if (I->second != ~0U) {
458 assert(I->second < CXXGlobalInits.size() &&
459 CXXGlobalInits[I->second] ==
nullptr);
460 CXXGlobalInits[I->second] = Fn;
465 DelayedCXXInitPosition[D] = ~0U;
468 void CodeGenModule::EmitCXXThreadLocalInitFunc() {
469 getCXXABI().EmitThreadLocalInitFuncs(
470 *
this, CXXThreadLocals, CXXThreadLocalInits, CXXThreadLocalInitVars);
472 CXXThreadLocalInits.clear();
473 CXXThreadLocalInitVars.clear();
474 CXXThreadLocals.clear();
478 CodeGenModule::EmitCXXGlobalInitFunc() {
479 while (!CXXGlobalInits.empty() && !CXXGlobalInits.back())
480 CXXGlobalInits.pop_back();
482 if (CXXGlobalInits.empty() && PrioritizedCXXGlobalInits.empty())
485 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
489 if (!PrioritizedCXXGlobalInits.empty()) {
491 llvm::array_pod_sort(PrioritizedCXXGlobalInits.begin(),
492 PrioritizedCXXGlobalInits.end());
497 I = PrioritizedCXXGlobalInits.begin(),
498 E = PrioritizedCXXGlobalInits.end(); I != E; ) {
500 PrioE = std::upper_bound(I + 1, E, *I, GlobalInitPriorityCmp());
502 LocalCXXGlobalInits.clear();
503 unsigned Priority = I->first.priority;
506 std::string PrioritySuffix = llvm::utostr(Priority);
508 PrioritySuffix = std::string(6-PrioritySuffix.size(),
'0')+PrioritySuffix;
509 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
510 FTy,
"_GLOBAL__I_" + PrioritySuffix, FI);
512 for (; I < PrioE; ++I)
513 LocalCXXGlobalInits.push_back(I->second);
516 AddGlobalCtor(Fn, Priority);
518 PrioritizedCXXGlobalInits.clear();
525 if (FileName.empty())
528 for (
size_t i = 0; i < FileName.size(); ++i) {
535 llvm::Function *Fn = CreateGlobalInitOrDestructFunction(
536 FTy, llvm::Twine(
"_GLOBAL__sub_I_", FileName), FI);
541 CXXGlobalInits.clear();
544 void CodeGenModule::EmitCXXGlobalDtorFunc() {
545 if (CXXGlobalDtors.empty())
548 llvm::FunctionType *FTy = llvm::FunctionType::get(
VoidTy,
false);
553 CreateGlobalInitOrDestructFunction(FTy,
"_GLOBAL__D_a", FI);
562 llvm::GlobalVariable *Addr,
571 getTypes().arrangeNullaryFunction(),
578 if (Addr->hasWeakLinkage() || Addr->hasLinkOnceLinkage()) {
598 llvm::BasicBlock *ExitBlock =
nullptr;
604 "guard.uninitialized");
625 for (
unsigned i = 0, e = Decls.size(); i != e; ++i)
642 const std::vector<std::pair<llvm::WeakTrackingVH, llvm::Constant *>>
652 for (
unsigned i = 0, e = DtorsAndObjects.size(); i != e; ++i) {
653 llvm::Value *Callee = DtorsAndObjects[e - i - 1].first;
654 llvm::CallInst *CI =
Builder.CreateCall(Callee,
655 DtorsAndObjects[e - i - 1].second);
657 if (llvm::Function *F = dyn_cast<llvm::Function>(Callee))
658 CI->setCallingConv(F->getCallingConv());
670 bool useEHCleanupForArray,
const VarDecl *VD) {
674 args.push_back(&Dst);
680 FTy,
"__cxx_global_array_dtor", FI, VD->
getLocation());
686 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.
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()
void GenerateCXXGlobalInitFunc(llvm::Function *Fn, ArrayRef< llvm::Function *> CXXThreadLocals, Address Guard=Address::invalid())
GenerateCXXGlobalInitFunc - Generates code for initializing global variables.
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.
static void EmitDeclDestroy(CodeGenFunction &CGF, const VarDecl &D, ConstantAddress addr)
Emit code to cause the destruction of the given variable with static storage duration.
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.
llvm::Constant * getAddrOfCXXStructor(const CXXMethodDecl *MD, StructorType Type, const CGFunctionInfo *FnInfo=nullptr, llvm::FunctionType *FnType=nullptr, bool DontDefer=false, ForDefinition_t IsForDefinition=NotForDefinition)
Return the address of the constructor/destructor of the given type.
llvm::CallInst * EmitRuntimeCall(llvm::Value *callee, const Twine &name="")
bool isReferenceType() const
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::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...
void registerGlobalDtorWithAtExit(const VarDecl &D, llvm::Constant *fn, llvm::Constant *addr)
Call atexit() with a function that passes the given argument to the given function.
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.
void ForceCleanup(std::initializer_list< llvm::Value **> ValuesToReload={})
Force the emission of cleanups now, instead of waiting until this object is destroyed.
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...
llvm::Constant * CreateRuntimeFunction(llvm::FunctionType *Ty, StringRef Name, llvm::AttributeList ExtraAttrs=llvm::AttributeList(), bool Local=false)
Create a new runtime function with the specified type and name.
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
llvm::CallInst * EmitNounwindRuntimeCall(llvm::Value *callee, const Twine &name="")
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...
Expr - This represents one expression.
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 ...
TLSKind getTLSKind() const
virtual void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D, llvm::Constant *Dtor, llvm::Constant *Addr)=0
Emit code to force the execution of a destructor during global teardown.
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.
llvm::Constant * createAtExitStub(const VarDecl &VD, llvm::Constant *Dtor, llvm::Constant *Addr)
Create a stub function, suitable for being passed to atexit, which passes the given address to the gi...
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.
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="")
SourceLocation getLocStart() const LLVM_READONLY
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)
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...
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.
CGCXXABI & getCXXABI() const
void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr)
void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, const std::vector< std::pair< llvm::WeakTrackingVH, llvm::Constant *>> &DtorsAndObjects)
GenerateCXXGlobalDtorsFunc - Generates code for destroying global variables.
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_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_.
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.