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.

Macros
#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))

Detailed Description

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

Definition in file XCoreLowerThreadLocal.cpp.

Macro Definition Documentation

DEBUG_TYPE

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

Definition at line 29 of file XCoreLowerThreadLocal.cpp.

Function Documentation

createLoweredInitializer()

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

static

Definition at line 69 of file XCoreLowerThreadLocal.cpp.

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

Referenced by isZeroLengthArray().

createLoweredType()

static ArrayType* createLoweredType ( Type *  OriginalType )

static

Definition at line 64 of file XCoreLowerThreadLocal.cpp.

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

Referenced by isZeroLengthArray().

createReplacementInstr()

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

static

Definition at line 78 of file XCoreLowerThreadLocal.cpp.

References llvm::MCID::Add, llvm::IRBuilder< T, Inserter >::CreateBinOp(), llvm::IRBuilder< T, Inserter >::CreateCast(), llvm::IRBuilder< T, Inserter >::CreateInBoundsGEP(), llvm::dyn_cast(), llvm::Value::getName(), llvm::ConstantExpr::getOpcode(), llvm::User::getOperand(), llvm::Value::getType(), llvm_unreachable, llvm::User::op_begin(), and llvm::User::op_end().

Referenced by replaceConstantExprOp().

INITIALIZE_PASS()

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

Definition at line 57 of file XCoreLowerThreadLocal.cpp.

isZeroLengthArray()

static bool isZeroLengthArray ( Type *  Ty )

static

Definition at line 175 of file XCoreLowerThreadLocal.cpp.

References createLoweredInitializer(), createLoweredType(), llvm::dyn_cast(), E, llvm::GlobalVariable::eraseFromParent(), llvm::PointerType::getAddressSpace(), llvm::Intrinsic::getDeclaration(), llvm::GlobalVariable::getInitializer(), llvm::GlobalValue::getLinkage(), llvm::SequentialType::getNumElements(), llvm::GlobalValue::getParent(), llvm::GlobalValue::getType(), llvm::GlobalValue::getValueType(), llvm::Module::globals(), llvm::GlobalVariable::hasInitializer(), I, llvm::GlobalVariable::isConstant(), llvm::GlobalVariable::isExternallyInitialized(), llvm::Type::isSized(), llvm::GlobalValue::isThreadLocal(), llvm::GlobalValue::NotThreadLocal, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::User::replaceUsesOfWith(), rewriteNonInstructionUses(), llvm::SmallVectorBase::size(), llvm::Value::takeName(), llvm::Value::user_begin(), llvm::Value::user_end(), Users, and llvm::Intrinsic::xcore_getid.

replaceConstantExprOp()

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

static

Definition at line 129 of file XCoreLowerThreadLocal.cpp.

References createReplacementInstr(), llvm::Constant::destroyConstant(), llvm::dyn_cast(), E, llvm::Instruction::getNumSuccessors(), llvm::BasicBlock::getParent(), llvm::BasicBlock::getTerminator(), llvm::Value::hasNUsesOrMore(), I, llvm::sort(), llvm::SplitEdge(), llvm::Value::user_begin(), and llvm::Value::user_end().

Referenced by rewriteNonInstructionUses().

rewriteNonInstructionUses()

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

static

Definition at line 161 of file XCoreLowerThreadLocal.cpp.

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

Referenced by isZeroLengthArray().

Variable Documentation

MaxThreads

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().