DemandedBits.cpp File Reference

#include "llvm/Analysis/DemandedBits.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Use.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/KnownBits.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cstdint>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "demanded-bits"

Functions
static bool	isAlwaysLive (Instruction *I)
static APInt	determineLiveOperandBitsAddCarry (unsigned OperandNo, const APInt &AOut, const KnownBits &LHS, const KnownBits &RHS, bool CarryZero, bool CarryOne)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "demanded-bits"

Definition at line 47 of file DemandedBits.cpp.

Function Documentation

determineLiveOperandBitsAddCarry()

static APInt determineLiveOperandBitsAddCarry ( unsigned  OperandNo, const APInt &  AOut, const KnownBits &  LHS, const KnownBits &  RHS, bool  CarryZero, bool  CarryOne  )

static

Definition at line 492 of file DemandedBits.cpp.

References assert(), LHS, llvm::APInt::reverseBits(), and RHS.

Referenced by llvm::DemandedBits::determineLiveOperandBitsAdd(), and llvm::DemandedBits::determineLiveOperandBitsSub().

isAlwaysLive()

static bool isAlwaysLive ( Instruction *  I )

static

Definition at line 49 of file DemandedBits.cpp.

References I.

Referenced by llvm::DemandedBits::isInstructionDead(), and llvm::DemandedBits::isUseDead().