CodeGenModule.cpp File Reference

#include "CodeGenModule.h"
#include "CGCUDARuntime.h"
#include "CGCXXABI.h"
#include "CGCall.h"
#include "CGDebugInfo.h"
#include "CGObjCRuntime.h"
#include "CGOpenCLRuntime.h"
#include "CGOpenMPRuntime.h"
#include "CodeGenFunction.h"
#include "CodeGenPGO.h"
#include "CoverageMappingGen.h"
#include "CodeGenTBAA.h"
#include "TargetInfo.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/CharUnits.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Mangle.h"
#include "clang/AST/RecordLayout.h"
#include "clang/AST/RecursiveASTVisitor.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/Module.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/Version.h"
#include "clang/Frontend/CodeGenOptions.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/Triple.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/ProfileData/InstrProfReader.h"
#include "llvm/Support/ConvertUTF.h"
#include "llvm/Support/ErrorHandling.h"

Include dependency graph for CodeGenModule.cpp:

Go to the source code of this file.

Functions
static CGCXXABI *	createCXXABI (CodeGenModule &CGM)
static const llvm::GlobalObject *	getAliasedGlobal (const llvm::GlobalAlias &GA)
static llvm::GlobalVariable::ThreadLocalMode	GetLLVMTLSModel (StringRef S)
static llvm::GlobalVariable::ThreadLocalMode	GetLLVMTLSModel (CodeGenOptions::TLSModel M)
static bool	hasUnwindExceptions (const LangOptions &LangOpts)
static void	setLinkageAndVisibilityForGV (llvm::GlobalValue *GV, const NamedDecl *ND)
static void	emitUsed (CodeGenModule &CGM, StringRef Name, std::vector< llvm::WeakVH > &List)
static void	addLinkOptionsPostorder (CodeGenModule &CGM, Module *Mod, SmallVectorImpl< llvm::Value * > &Metadata, llvm::SmallPtrSet< Module *, 16 > &Visited)
	Add link options implied by the given module, including modules it depends on, using a postorder walk.
static bool	isVarDeclStrongDefinition (const ASTContext &Context, const VarDecl *D, bool NoCommon)
static void	replaceUsesOfNonProtoConstant (llvm::Constant *old, llvm::Function *newFn)
static void	ReplaceUsesOfNonProtoTypeWithRealFunction (llvm::GlobalValue *Old, llvm::Function *NewFn)
static llvm::StringMapEntry < llvm::Constant * > &	GetConstantCFStringEntry (llvm::StringMap< llvm::Constant * > &Map, const StringLiteral *Literal, bool TargetIsLSB, bool &IsUTF16, unsigned &StringLength)
static llvm::StringMapEntry < llvm::Constant * > &	GetConstantStringEntry (llvm::StringMap< llvm::Constant * > &Map, const StringLiteral *Literal, unsigned &StringLength)
static llvm::GlobalVariable *	GenerateStringLiteral (llvm::Constant *C, llvm::GlobalValue::LinkageTypes LT, CodeGenModule &CGM, StringRef GlobalName, unsigned Alignment)
static bool	needsDestructMethod (ObjCImplementationDecl *impl)
static bool	AllTrivialInitializers (CodeGenModule &CGM, ObjCImplementationDecl *D)
static llvm::Constant *	GetPointerConstant (llvm::LLVMContext &Context, const void *Ptr)
	Turns the given pointer into a constant.
static void	EmitGlobalDeclMetadata (CodeGenModule &CGM, llvm::NamedMDNode *&GlobalMetadata, GlobalDecl D, llvm::GlobalValue *Addr)
Variables
static const char	AnnotationSection [] = "llvm.metadata"

---

Function Documentation

static void addLinkOptionsPostorder	(	CodeGenModule &	CGM,
		Module *	Mod,
		SmallVectorImpl< llvm::Value * > &	Metadata,
		llvm::SmallPtrSet< Module *, 16 > &	Visited
	)		[static]

Add link options implied by the given module, including modules it depends on, using a postorder walk.

Definition at line 972 of file CodeGenModule.cpp.

References clang::TargetCodeGenInfo::getDependentLibraryOption(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::CodeGen::CodeGenModule::getTargetCodeGenInfo(), clang::Module::Imports, clang::Module::LinkLibraries, and clang::Module::Parent.

static bool AllTrivialInitializers	(	CodeGenModule &	CGM,
		ObjCImplementationDecl *	D
	)		[static]

Definition at line 3020 of file CodeGenModule.cpp.

References clang::CXXCtorInitializer::getInit(), clang::ObjCImplementationDecl::init_begin(), clang::ObjCImplementationDecl::init_end(), and clang::CodeGen::CodeGenFunction::isTrivialInitializer().

static CGCXXABI* createCXXABI

(

CodeGenModule &

CGM

)

[static]

Definition at line 61 of file CodeGenModule.cpp.

References clang::CodeGen::CreateItaniumCXXABI(), clang::CodeGen::CreateMicrosoftCXXABI(), clang::TargetCXXABI::GenericAArch64, clang::TargetCXXABI::GenericARM, clang::TargetCXXABI::GenericItanium, clang::TargetInfo::getCXXABI(), clang::TargetCXXABI::getKind(), clang::CodeGen::CodeGenModule::getTarget(), clang::TargetCXXABI::iOS, clang::TargetCXXABI::iOS64, and clang::TargetCXXABI::Microsoft.

static void EmitGlobalDeclMetadata	(	CodeGenModule &	CGM,
		llvm::NamedMDNode *&	GlobalMetadata,
		GlobalDecl	D,
		llvm::GlobalValue *	Addr
	)		[static]

Definition at line 3370 of file CodeGenModule.cpp.

References clang::CodeGen::CodeGenModule::addUsedGlobal(), clang::serialized_diags::create(), clang::GlobalDecl::getDecl(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::CodeGen::CodeGenModule::getModule(), clang::IdentifierInfo::getName(), and GetPointerConstant().

static void emitUsed	(	CodeGenModule &	CGM,
		StringRef	Name,
		std::vector< llvm::WeakVH > &	List
	)		[static]

Definition at line 920 of file CodeGenModule.cpp.

References clang::CodeGen::CodeGenModule::getModule(), and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

static llvm::GlobalVariable* GenerateStringLiteral	(	llvm::Constant *	C,
		llvm::GlobalValue::LinkageTypes	LT,
		CodeGenModule &	CGM,
		StringRef	GlobalName,
		unsigned	Alignment
	)		[static]

Definition at line 2794 of file CodeGenModule.cpp.

References AttributeLangSupport::C, clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::CodeGen::CodeGenModule::getModule(), clang::ASTContext::getTargetAddressSpace(), and clang::LangAS::opencl_constant.

Referenced by clang::CodeGen::CodeGenModule::GetAddrOfConstantCString(), and clang::CodeGen::CodeGenModule::GetAddrOfConstantStringFromLiteral().

static const llvm::GlobalObject* getAliasedGlobal

(

const llvm::GlobalAlias &

GA

)

[static]

Definition at line 237 of file CodeGenModule.cpp.

References AttributeLangSupport::C.

static llvm::StringMapEntry<llvm::Constant*>& GetConstantCFStringEntry	(	llvm::StringMap< llvm::Constant * > &	Map,
		const StringLiteral *	Literal,
		bool	TargetIsLSB,
		bool &	IsUTF16,
		unsigned &	StringLength
	)		[static]

Definition at line 2462 of file CodeGenModule.cpp.

References clang::StringLiteral::containsNonAsciiOrNull(), and clang::StringLiteral::getString().

Referenced by clang::CodeGen::CodeGenModule::GetAddrOfConstantCFString().

static llvm::StringMapEntry<llvm::Constant*>& GetConstantStringEntry	(	llvm::StringMap< llvm::Constant * > &	Map,
		const StringLiteral *	Literal,
		unsigned &	StringLength
	)		[static]

Definition at line 2498 of file CodeGenModule.cpp.

References clang::StringLiteral::getString().

Referenced by clang::CodeGen::CodeGenModule::GetAddrOfConstantString().

static llvm::GlobalVariable::ThreadLocalMode GetLLVMTLSModel

(

StringRef

S

)

[static]

Definition at line 515 of file CodeGenModule.cpp.

References S.

Referenced by clang::CodeGen::CodeGenModule::setTLSMode().

static llvm::GlobalVariable::ThreadLocalMode GetLLVMTLSModel

(

CodeGenOptions::TLSModel

M

)

[static]

Definition at line 523 of file CodeGenModule.cpp.

References clang::CodeGenOptions::GeneralDynamicTLSModel, clang::CodeGenOptions::InitialExecTLSModel, clang::CodeGenOptions::LocalDynamicTLSModel, and clang::CodeGenOptions::LocalExecTLSModel.

static llvm::Constant* GetPointerConstant	(	llvm::LLVMContext &	Context,
		const void *	Ptr
	)		[static]

Turns the given pointer into a constant.

Definition at line 3363 of file CodeGenModule.cpp.

Referenced by EmitGlobalDeclMetadata().

static bool hasUnwindExceptions

(

const LangOptions &

LangOpts

)

[static]

Determines whether the language options require us to model unwind exceptions. We treat -fexceptions as mandating this except under the fragile ObjC ABI with only ObjC exceptions enabled. This means, for example, that C with -fexceptions enables this.

Definition at line 689 of file CodeGenModule.cpp.

References clang::ObjCRuntime::hasUnwindExceptions(), and clang::LangOptions::ObjCRuntime.

Referenced by clang::CodeGen::CodeGenModule::SetLLVMFunctionAttributesForDefinition().

static bool isVarDeclStrongDefinition	(	const ASTContext &	Context,
		const VarDecl *	D,
		bool	NoCommon
	)		[static]

Definition at line 2048 of file CodeGenModule.cpp.

References clang::VarDecl::getInit(), clang::ASTContext::getLangOpts(), clang::VarDecl::getTLSKind(), clang::ValueDecl::getType(), clang::Decl::hasAttr(), clang::VarDecl::hasExternalStorage(), and clang::ASTContext::isAlignmentRequired().

Referenced by clang::CodeGen::CodeGenModule::getLLVMLinkageForDeclarator().

static bool needsDestructMethod

(

ObjCImplementationDecl *

impl

)

[static]

Definition at line 3010 of file CodeGenModule.cpp.

References clang::ObjCInterfaceDecl::all_declared_ivar_begin(), clang::ObjCImplDecl::getClassInterface(), and clang::ObjCIvarDecl::getNextIvar().

static void replaceUsesOfNonProtoConstant	(	llvm::Constant *	old,
		llvm::Function *	newFn
	)		[static]

Replace the uses of a function that was declared with a non-proto type. We want to silently drop extra arguments from call sites

Definition at line 2150 of file CodeGenModule.cpp.

Referenced by ReplaceUsesOfNonProtoTypeWithRealFunction().

static void ReplaceUsesOfNonProtoTypeWithRealFunction	(	llvm::GlobalValue *	Old,
		llvm::Function *	NewFn
	)		[static]

ReplaceUsesOfNonProtoTypeWithRealFunction - This function is called when we implement a function with no prototype, e.g. "int foo() {}". If there are existing call uses of the old function in the module, this adjusts them to call the new function directly.

This is not just a cleanup: the always_inline pass requires direct calls to functions to be able to inline them. If there is a bitcast in the way, it won't inline them. Instcombine normally deletes these calls, but it isn't run at -O0.

Definition at line 2264 of file CodeGenModule.cpp.

References replaceUsesOfNonProtoConstant().

static void setLinkageAndVisibilityForGV	(	llvm::GlobalValue *	GV,
		const NamedDecl *	ND
	)		[static]

Definition at line 832 of file CodeGenModule.cpp.

References clang::ExternalLinkage, clang::LinkageInfo::getLinkage(), clang::NamedDecl::getLinkageAndVisibility(), clang::CodeGen::CodeGenModule::GetLLVMVisibility(), clang::LinkageInfo::getVisibility(), clang::Decl::hasAttr(), clang::LinkageInfo::isVisibilityExplicit(), clang::Decl::isWeakImported(), and clang::LinkageInfo::setLinkage().

---

Variable Documentation

const char AnnotationSection[] = "llvm.metadata" [static]

Definition at line 59 of file CodeGenModule.cpp.

Referenced by clang::CodeGen::CodeGenModule::EmitAnnotationString(), and clang::CodeGen::CodeGenModule::EmitGlobalAnnotations().