SCCP.cpp File Reference

#include "llvm/Transforms/Scalar.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/InstVisitor.h"
#include "llvm/Pass.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Utils/Local.h"
#include <algorithm>

Include dependency graph for SCCP.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "sccp"

Functions
	STATISTIC (NumInstRemoved,"Number of instructions removed")
	STATISTIC (NumDeadBlocks,"Number of basic blocks unreachable")
	STATISTIC (IPNumInstRemoved,"Number of instructions removed by IPSCCP")
	STATISTIC (IPNumArgsElimed,"Number of arguments constant propagated by IPSCCP")
	STATISTIC (IPNumGlobalConst,"Number of globals found to be constant by IPSCCP")
	INITIALIZE_PASS (SCCP,"sccp","Sparse Conditional Constant Propagation", false, false) FunctionPass *llvm
static void	DeleteInstructionInBlock (BasicBlock *BB)
	INITIALIZE_PASS_BEGIN (IPSCCP,"ipsccp","Interprocedural Sparse Conditional Constant Propagation", false, false) INITIALIZE_PASS_END(IPSCCP
static bool	AddressIsTaken (const GlobalValue *GV)

Variables
	ipsccp
Interprocedural Sparse Conditional Constant	Propagation
Interprocedural Sparse Conditional Constant	false

Macro Definition Documentation

#define DEBUG_TYPE   "sccp"

Definition at line 20 of file SCCP.cpp.

Function Documentation

static bool AddressIsTaken ( const GlobalValue *  GV )

static

Definition at line 1657 of file SCCP.cpp.

References llvm::User::getOperand(), llvm::CallSiteBase< FunTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::isCallee(), llvm::StoreInst::isVolatile(), LI, llvm::Constant::removeDeadConstantUsers(), llvm::Value::use_begin(), and llvm::Value::use_end().

static void DeleteInstructionInBlock ( BasicBlock *  BB )

static

Definition at line 1526 of file SCCP.cpp.

References llvm::BasicBlock::begin(), llvm::dbgs(), DEBUG, llvm::iplist< NodeTy, Traits >::erase(), llvm::UndefValue::get(), llvm::BasicBlock::getInstList(), llvm::BasicBlock::getTerminator(), llvm::Value::getType(), I, llvm::Value::replaceAllUsesWith(), and llvm::Value::use_empty().

INITIALIZE_PASS	(	SCCP	,
		"sccp"	,
		"Sparse Conditional Constant Propagation"	,
		false	,
		false
	)

Definition at line 1518 of file SCCP.cpp.

INITIALIZE_PASS_BEGIN	(	IPSCCP	,
		"ipsccp"	,
		"Interprocedural Sparse Conditional Constant Propagation"	,
		false	,
		false
	)

STATISTIC	(	NumInstRemoved	,
		"Number of instructions removed"
	)

STATISTIC	(	NumDeadBlocks	,
		"Number of basic blocks unreachable"
	)

STATISTIC	(	IPNumInstRemoved	,
		"Number of instructions removed by IPSCCP"
	)

STATISTIC	(	IPNumArgsElimed	,
		"Number of arguments constant propagated by IPSCCP"
	)

STATISTIC	(	IPNumGlobalConst	,
		"Number of globals found to be constant by IPSCCP"
	)

Variable Documentation

Interprocedural Sparse Conditional Constant false

Definition at line 1647 of file SCCP.cpp.

ipsccp

Definition at line 1647 of file SCCP.cpp.

Interprocedural Sparse Conditional Constant Propagation

Definition at line 1647 of file SCCP.cpp.