XCoreLowerThreadLocal.cpp File Reference

This file contains a pass that lowers thread local variables on the XCore. More...

#include "XCore.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/NoFolder.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"

Include dependency graph for XCoreLowerThreadLocal.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "xcore-lower-thread-local"
Functions
	INITIALIZE_PASS (XCoreLowerThreadLocal,"xcore-lower-thread-local","Lower thread local variables", false, false) ModulePass *llvm
static ArrayType *	createLoweredType (Type *OriginalType)
static Constant *	createLoweredInitializer (ArrayType *NewType, Constant *OriginalInitializer)
static Instruction *	createReplacementInstr (ConstantExpr *CE, Instruction *Instr)
static bool	replaceConstantExprOp (ConstantExpr *CE, Pass *P)
static bool	rewriteNonInstructionUses (GlobalVariable *GV, Pass *P)
static bool	isZeroLengthArray (Type *Ty)
Variables
static cl::opt< unsigned >	MaxThreads ("xcore-max-threads", cl::Optional, cl::desc("Maximum number of threads (for emulation thread-local storage)"), cl::Hidden, cl::value_desc("number"), cl::init(8))

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Detailed Description

This file contains a pass that lowers thread local variables on the XCore.

Definition in file XCoreLowerThreadLocal.cpp.

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Define Documentation

#define DEBUG_TYPE   "xcore-lower-thread-local"

Definition at line 29 of file XCoreLowerThreadLocal.cpp.

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Function Documentation

static Constant* createLoweredInitializer	(	ArrayType *	NewType,
		Constant *	OriginalInitializer
	)		[static]

Definition at line 69 of file XCoreLowerThreadLocal.cpp.

References llvm::ConstantArray::get(), and MaxThreads.

static ArrayType* createLoweredType

(

Type *

OriginalType

)

[static]

Definition at line 64 of file XCoreLowerThreadLocal.cpp.

References llvm::ArrayType::get(), and MaxThreads.

static Instruction* createReplacementInstr	(	ConstantExpr *	CE,
		Instruction *	Instr
	)		[static]

Definition at line 78 of file XCoreLowerThreadLocal.cpp.

References llvm::APIntOps::And(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateBinOp(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateCast(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateInBoundsGEP(), llvm::dyn_cast(), llvm::FPExt, llvm::FPToSI, llvm::Value::getName(), llvm::ConstantExpr::getOpcode(), llvm::User::getOperand(), llvm::Value::getType(), llvm::IntToPtr, llvm_unreachable, llvm::LShr, llvm::User::op_begin(), llvm::User::op_end(), llvm::APIntOps::Or(), llvm::SExt, llvm::SIToFP, llvm::Trunc, and llvm::APIntOps::Xor().

Referenced by replaceConstantExprOp().

INITIALIZE_PASS	(	XCoreLowerThreadLocal	,
		"xcore-lower-thread-local"	,
		"Lower thread local variables"	,
		false	,
		false
	)

Definition at line 57 of file XCoreLowerThreadLocal.cpp.

static bool isZeroLengthArray

(

Type *

Ty

)

[static]

Definition at line 174 of file XCoreLowerThreadLocal.cpp.

References llvm::dyn_cast(), and llvm::ArrayType::getNumElements().

static bool replaceConstantExprOp	(	ConstantExpr *	CE,
		Pass *	P
	)		[static]

Definition at line 128 of file XCoreLowerThreadLocal.cpp.

References llvm::WinEH::CE, createReplacementInstr(), llvm::ConstantExpr::destroyConstant(), llvm::dyn_cast(), llvm::SmallVectorImpl< T >::erase(), llvm::TerminatorInst::getNumSuccessors(), llvm::BasicBlock::getParent(), llvm::BasicBlock::getTerminator(), llvm::Value::hasNUsesOrMore(), I, llvm::SplitEdge(), llvm::Value::user_begin(), and llvm::Value::user_end().

Referenced by rewriteNonInstructionUses().

static bool rewriteNonInstructionUses	(	GlobalVariable *	GV,
		Pass *	P
	)		[static]

Definition at line 160 of file XCoreLowerThreadLocal.cpp.

References llvm::WinEH::CE, llvm::dyn_cast(), llvm::SmallVectorBase::empty(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T, isPodLike >::push_back(), replaceConstantExprOp(), and llvm::Value::users().

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Variable Documentation

cl::opt<unsigned> MaxThreads("xcore-max-threads", cl::Optional, cl::desc("Maximum number of threads (for emulation thread-local storage)"), cl::Hidden, cl::value_desc("number"), cl::init(8)) [static]

Referenced by createLoweredInitializer(), and createLoweredType().