//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_ANALYSIS_SCALAREVOLUTION_EXPANDER_H
-#define LLVM_ANALYSIS_SCALAREVOLUTION_EXPANDER_H
+#ifndef LLVM_ANALYSIS_SCALAREVOLUTIONEXPANDER_H
+#define LLVM_ANALYSIS_SCALAREVOLUTIONEXPANDER_H
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
#include "llvm/Analysis/ScalarEvolutionNormalization.h"
#include <set>
namespace llvm {
- class TargetLowering;
+ class TargetTransformInfo;
/// Return true if the given expression is safe to expand in the sense that
/// all materialized values are safe to speculate.
- bool isSafeToExpand(const SCEV *S);
+ bool isSafeToExpand(const SCEV *S, ScalarEvolution &SE);
/// SCEVExpander - This class uses information about analyze scalars to
/// rewrite expressions in canonical form.
// New instructions receive a name to identifies them with the current pass.
const char* IVName;
- std::map<std::pair<const SCEV *, Instruction *>, AssertingVH<Value> >
+ // InsertedExpressions caches Values for reuse, so must track RAUW.
+ std::map<std::pair<const SCEV *, Instruction *>, TrackingVH<Value> >
InsertedExpressions;
+ // InsertedValues only flags inserted instructions so needs no RAUW.
std::set<AssertingVH<Value> > InsertedValues;
std::set<AssertingVH<Value> > InsertedPostIncValues;
/// representative. Return the number of phis eliminated.
unsigned replaceCongruentIVs(Loop *L, const DominatorTree *DT,
SmallVectorImpl<WeakVH> &DeadInsts,
- const TargetLowering *TLI = NULL);
+ const TargetTransformInfo *TTI = NULL);
/// expandCodeFor - Insert code to directly compute the specified SCEV
/// expression into the program. The inserted code is inserted into the
void rememberInstruction(Value *I);
- void restoreInsertPoint(BasicBlock *BB, BasicBlock::iterator I);
-
bool isNormalAddRecExprPHI(PHINode *PN, Instruction *IncV, const Loop *L);
bool isExpandedAddRecExprPHI(PHINode *PN, Instruction *IncV, const Loop *L);