MergeFunctions.cpp File Reference

#include "llvm/Transforms/IPO.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/Pass.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ValueHandle.h"
#include "llvm/Support/raw_ostream.h"
#include <vector>

Include dependency graph for MergeFunctions.cpp:

Go to the source code of this file.

Classes
struct	llvm::DenseMapInfo< ComparableFunction >

Namespaces
	llvm
	List of target independent CodeGen pass IDs.

Macros
#define	DEBUG_TYPE   "mergefunc"

Functions
	STATISTIC (NumFunctionsMerged,"Number of functions merged")
	STATISTIC (NumThunksWritten,"Number of thunks generated")
	STATISTIC (NumAliasesWritten,"Number of aliases generated")
	STATISTIC (NumDoubleWeak,"Number of new functions created")
static Type::TypeID	getTypeIDForHash (Type *Ty)
static unsigned	profileFunction (const Function *F)
static Value *	createCast (IRBuilder< false > &Builder, Value *V, Type *DestTy)

Macro Definition Documentation

#define DEBUG_TYPE   "mergefunc"

Definition at line 46 of file MergeFunctions.cpp.

Function Documentation

static Value* createCast ( IRBuilder< false > &  Builder, Value *  V, Type *  DestTy  )

static

Definition at line 727 of file MergeFunctions.cpp.

References llvm::IRBuilder< preserveNames, T, Inserter >::CreateBitCast(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateIntToPtr(), llvm::IRBuilder< preserveNames, T, Inserter >::CreatePtrToInt(), llvm::Value::getType(), llvm::Type::isIntegerTy(), and llvm::Type::isPointerTy().

static Type::TypeID getTypeIDForHash ( Type *  Ty )

static

Returns the type id for a type to be hashed. We turn pointer types into integers here because the actual compare logic below considers pointers and integers of the same size as equal.

Definition at line 78 of file MergeFunctions.cpp.

References llvm::Type::getTypeID(), llvm::Type::IntegerTyID, and llvm::Type::isPointerTy().

Referenced by profileFunction().

static unsigned profileFunction ( const Function *  F )

static

Creates a hash-code for the function which is the same for any two functions that will compare equal, without looking at the instructions inside the function.

Definition at line 87 of file MergeFunctions.cpp.

References llvm::FoldingSetNodeID::AddBoolean(), llvm::FoldingSetNodeID::AddInteger(), llvm::FoldingSetNodeID::ComputeHash(), llvm::Function::getCallingConv(), llvm::Function::getFunctionType(), llvm::FunctionType::getNumParams(), llvm::FunctionType::getParamType(), llvm::FunctionType::getReturnType(), getTypeIDForHash(), llvm::Function::hasGC(), llvm::FunctionType::isVarArg(), and llvm::Function::size().

STATISTIC	(	NumFunctionsMerged	,
		"Number of functions merged"
	)

STATISTIC	(	NumThunksWritten	,
		"Number of thunks generated"
	)

STATISTIC	(	NumAliasesWritten	,
		"Number of aliases generated"
	)

STATISTIC	(	NumDoubleWeak	,
		"Number of new functions created"
	)