class SCEVInitRewriter : public SCEVRewriteVisitor<SCEVInitRewriter> {
public:
- SCEVInitRewriter(const Loop *L, ScalarEvolution &SE)
- : SCEVRewriteVisitor(SE), L(L) {}
-
static const SCEV *rewrite(const SCEV *S, const Loop *L,
ScalarEvolution &SE) {
SCEVInitRewriter Rewriter(L, SE);
bool isValid() { return Valid; }
private:
+ explicit SCEVInitRewriter(const Loop *L, ScalarEvolution &SE)
+ : SCEVRewriteVisitor(SE), L(L) {}
+
const Loop *L;
bool Valid = true;
};
if (BasicBlock *Latch = L->getLoopLatch()) {
BranchInst *BI = dyn_cast<BranchInst>(Latch->getTerminator());
if (BI && BI->isConditional()) {
+ assert(BI->getSuccessor(0) != BI->getSuccessor(1) &&
+ "Both outgoing branches should not target same header!");
BECond = BI->getCondition();
IsPosBECond = BI->getSuccessor(0) == L->getHeader();
} else {
class SCEVShiftRewriter : public SCEVRewriteVisitor<SCEVShiftRewriter> {
public:
- SCEVShiftRewriter(const Loop *L, ScalarEvolution &SE)
- : SCEVRewriteVisitor(SE), L(L) {}
-
static const SCEV *rewrite(const SCEV *S, const Loop *L,
ScalarEvolution &SE) {
SCEVShiftRewriter Rewriter(L, SE);
bool isValid() { return Valid; }
private:
+ explicit SCEVShiftRewriter(const Loop *L, ScalarEvolution &SE)
+ : SCEVRewriteVisitor(SE), L(L) {}
+
const Loop *L;
bool Valid = true;
};
class SCEVPredicateRewriter : public SCEVRewriteVisitor<SCEVPredicateRewriter> {
public:
- SCEVPredicateRewriter(const Loop *L, ScalarEvolution &SE,
- SmallPtrSetImpl<const SCEVPredicate *> *NewPreds,
- SCEVUnionPredicate *Pred)
- : SCEVRewriteVisitor(SE), NewPreds(NewPreds), Pred(Pred), L(L) {}
/// Rewrites \p S in the context of a loop L and the SCEV predication
/// infrastructure.
}
private:
+ explicit SCEVPredicateRewriter(const Loop *L, ScalarEvolution &SE,
+ SmallPtrSetImpl<const SCEVPredicate *> *NewPreds,
+ SCEVUnionPredicate *Pred)
+ : SCEVRewriteVisitor(SE), NewPreds(NewPreds), Pred(Pred), L(L) {}
+
bool addOverflowAssumption(const SCEVPredicate *P) {
if (!NewPreds) {
// Check if we've already made this assumption.