ScalarEvolutionExpander.h File Reference

#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
#include "llvm/Analysis/ScalarEvolutionNormalization.h"
#include "llvm/Analysis/TargetFolder.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/InstructionCost.h"

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Classes
struct	llvm::SCEVOperand
	struct for holding enough information to help calculate the cost of the given SCEV when expanded into IR. More...
class	llvm::SCEVExpander
	This class uses information about analyze scalars to rewrite expressions in canonical form. More...
class	llvm::SCEVExpanderCleaner
	Helper to remove instructions inserted during SCEV expansion, unless they are marked as used. More...

Namespaces
	llvm
	This file implements support for optimizing divisions by a constant.

Functions
bool	llvm::isSafeToExpand (const SCEV *S, ScalarEvolution &SE, bool CanonicalMode=true)
	Return true if the given expression is safe to expand in the sense that all materialized values are safe to speculate anywhere their operands are defined, and the expander is capable of expanding the expression. More...
bool	llvm::isSafeToExpandAt (const SCEV *S, const Instruction *InsertionPoint, ScalarEvolution &SE)
	Return true if the given expression is safe to expand in the sense that all materialized values are defined and safe to speculate at the specified location and their operands are defined at this location. More...

Variables
cl::opt< unsigned >	llvm::SCEVCheapExpansionBudget