InstCombineAddSub.cpp File Reference

#include "InstCombine.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/PatternMatch.h"

Include dependency graph for InstCombineAddSub.cpp:

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Functions
static Constant *	AddOne (Constant *C)
	AddOne - Add one to a ConstantInt. More...
static Constant *	SubOne (ConstantInt *C)
	SubOne - Subtract one from a ConstantInt. More...
static Value *	dyn_castFoldableMul (Value *V, ConstantInt *&CST)

Function Documentation

static Constant* AddOne ( Constant *  C )

static

AddOne - Add one to a ConstantInt.

Definition at line 849 of file InstCombineAddSub.cpp.

References llvm::ConstantInt::get(), llvm::ConstantExpr::getAdd(), and llvm::Value::getType().

Referenced by llvm::ScalarEvolution::getAddExpr(), llvm::InstCombiner::visitAdd(), and llvm::InstCombiner::visitSub().

static Value* dyn_castFoldableMul ( Value *  V, ConstantInt *&  CST  )

inlinestatic

Definition at line 864 of file InstCombineAddSub.cpp.

References llvm::dyn_cast(), llvm::ConstantInt::get(), getBitWidth(), llvm::Type::getContext(), llvm::ConstantInt::getLimitedValue(), llvm::APInt::getOneBitSet(), llvm::Instruction::getOpcode(), llvm::User::getOperand(), llvm::Value::getType(), llvm::Value::hasOneUse(), and llvm::Type::isIntegerTy().

Referenced by llvm::InstCombiner::visitAdd(), and llvm::InstCombiner::visitSub().

static Constant* SubOne ( ConstantInt *  C )

static

SubOne - Subtract one from a ConstantInt.

Definition at line 854 of file InstCombineAddSub.cpp.

References llvm::ConstantInt::get(), llvm::Value::getContext(), and llvm::ConstantInt::getValue().

Referenced by llvm::InstCombiner::visitAdd(), and llvm::InstCombiner::visitSub().