CGAtomic.cpp File Reference

#include "CodeGenFunction.h"
#include "CGCall.h"
#include "CodeGenModule.h"
#include "clang/AST/ASTContext.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Operator.h"

Include dependency graph for CGAtomic.cpp:

Go to the source code of this file.

Functions
static RValue	emitAtomicLibcall (CodeGenFunction &CGF, StringRef fnName, QualType resultType, CallArgList &args)
static bool	isFullSizeType (CodeGenModule &CGM, llvm::Type *type, uint64_t expectedSize)
	Does a store of the given IR type modify the full expected width?
static void	emitAtomicCmpXchg (CodeGenFunction &CGF, AtomicExpr *E, bool IsWeak, llvm::Value *Dest, llvm::Value *Ptr, llvm::Value *Val1, llvm::Value *Val2, uint64_t Size, unsigned Align, llvm::AtomicOrdering SuccessOrder, llvm::AtomicOrdering FailureOrder)
static void	emitAtomicCmpXchgFailureSet (CodeGenFunction &CGF, AtomicExpr *E, bool IsWeak, llvm::Value *Dest, llvm::Value *Ptr, llvm::Value *Val1, llvm::Value *Val2, llvm::Value *FailureOrderVal, uint64_t Size, unsigned Align, llvm::AtomicOrdering SuccessOrder)
static void	EmitAtomicOp (CodeGenFunction &CGF, AtomicExpr *E, llvm::Value *Dest, llvm::Value *Ptr, llvm::Value *Val1, llvm::Value *Val2, llvm::Value *IsWeak, llvm::Value *FailureOrder, uint64_t Size, unsigned Align, llvm::AtomicOrdering Order)
static llvm::Value *	EmitValToTemp (CodeGenFunction &CGF, Expr *E)
static void	AddDirectArgument (CodeGenFunction &CGF, CallArgList &Args, bool UseOptimizedLibcall, llvm::Value *Val, QualType ValTy, SourceLocation Loc, CharUnits SizeInChars)

---

Function Documentation

static void AddDirectArgument	(	CodeGenFunction &	CGF,
		CallArgList &	Args,
		bool	UseOptimizedLibcall,
		llvm::Value *	Val,
		QualType	ValTy,
		SourceLocation	Loc,
		CharUnits	SizeInChars
	)		[static]

Definition at line 466 of file CGAtomic.cpp.

References clang::CodeGen::CallArgList::add(), clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::EmitCastToVoidPtr(), clang::CodeGen::CodeGenFunction::EmitLoadOfScalar(), clang::CodeGen::RValue::get(), clang::CodeGen::CodeGenFunction::getContext(), clang::ASTContext::getIntTypeForBitwidth(), clang::CodeGen::CodeGenFunction::getLLVMContext(), clang::ASTContext::getPointerType(), clang::CharUnits::getQuantity(), clang::ASTContext::getTypeAlignInChars(), clang::ASTContext::toBits(), and clang::ASTContext::VoidPtrTy.

Referenced by clang::CodeGen::CodeGenFunction::EmitAtomicExpr().

static void emitAtomicCmpXchg	(	CodeGenFunction &	CGF,
		AtomicExpr *	E,
		bool	IsWeak,
		llvm::Value *	Dest,
		llvm::Value *	Ptr,
		llvm::Value *	Val1,
		llvm::Value *	Val2,
		uint64_t	Size,
		unsigned	Align,
		llvm::AtomicOrdering	SuccessOrder,
		llvm::AtomicOrdering	FailureOrder
	)		[static]

Definition at line 181 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CodeGenFunction::CurFn, clang::CodeGen::CodeGenFunction::EmitStoreOfScalar(), clang::Expr::getType(), clang::AtomicExpr::isVolatile(), and clang::CodeGen::CodeGenFunction::MakeAddrLValue().

Referenced by emitAtomicCmpXchgFailureSet().

static void emitAtomicCmpXchgFailureSet	(	CodeGenFunction &	CGF,
		AtomicExpr *	E,
		bool	IsWeak,
		llvm::Value *	Dest,
		llvm::Value *	Ptr,
		llvm::Value *	Val1,
		llvm::Value *	Val2,
		llvm::Value *	FailureOrderVal,
		uint64_t	Size,
		unsigned	Align,
		llvm::AtomicOrdering	SuccessOrder
	)		[static]

Given an ordering required on success, emit all possible cmpxchg instructions to cope with the provided (but possibly only dynamically known) FailureOrder.

Definition at line 233 of file CGAtomic.cpp.

References clang::AtomicExpr::AO_ABI_memory_order_acquire, clang::AtomicExpr::AO_ABI_memory_order_consume, clang::AtomicExpr::AO_ABI_memory_order_seq_cst, clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CodeGenFunction::CurFn, and emitAtomicCmpXchg().

Referenced by EmitAtomicOp().

static RValue emitAtomicLibcall	(	CodeGenFunction &	CGF,
		StringRef	fnName,
		QualType	resultType,
		CallArgList &	args
	)		[static]

Definition at line 128 of file CGAtomic.cpp.

References clang::CodeGen::RequiredArgs::All, clang::CodeGen::CodeGenTypes::arrangeFreeFunctionCall(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenTypes::GetFunctionType(), and clang::CodeGen::CodeGenModule::getTypes().

Referenced by clang::CodeGen::CodeGenFunction::EmitAtomicLoad(), and clang::CodeGen::CodeGenFunction::EmitAtomicStore().

static void EmitAtomicOp	(	CodeGenFunction &	CGF,
		AtomicExpr *	E,
		llvm::Value *	Dest,
		llvm::Value *	Ptr,
		llvm::Value *	Val1,
		llvm::Value *	Val2,
		llvm::Value *	IsWeak,
		llvm::Value *	FailureOrder,
		uint64_t	Size,
		unsigned	Align,
		llvm::AtomicOrdering	Order
	)		[static]

Definition at line 309 of file CGAtomic.cpp.

References clang::prec::And, clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CodeGenFunction::CurFn, emitAtomicCmpXchgFailureSet(), clang::AtomicExpr::getOp(), and clang::AtomicExpr::isVolatile().

Referenced by clang::CodeGen::CodeGenFunction::EmitAtomicExpr().

static llvm::Value* EmitValToTemp	(	CodeGenFunction &	CGF,
		Expr *	E
	)		[static]

Definition at line 458 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::CreateMemTemp(), clang::CodeGen::CodeGenFunction::EmitAnyExprToMem(), clang::QualType::getQualifiers(), and clang::Expr::getType().

Referenced by clang::CodeGen::CodeGenFunction::EmitAtomicExpr().

static bool isFullSizeType	(	CodeGenModule &	CGM,
		llvm::Type *	type,
		uint64_t	expectedSize
	)		[static]

Does a store of the given IR type modify the full expected width?

Definition at line 141 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenModule::getDataLayout().