void ScalarEvolution::forgetMemoizedResults(ArrayRef<const SCEV *> SCEVs) {
for (auto *S : SCEVs)
forgetMemoizedResultsImpl(S);
-}
-
-void ScalarEvolution::forgetMemoizedResultsImpl(const SCEV *S) {
- ValuesAtScopes.erase(S);
- LoopDispositions.erase(S);
- BlockDispositions.erase(S);
- UnsignedRanges.erase(S);
- SignedRanges.erase(S);
- ExprValueMap.erase(S);
- HasRecMap.erase(S);
- MinTrailingZerosCache.erase(S);
-
+ SmallPtrSet<const SCEV *, 8> ToForget(SCEVs.begin(), SCEVs.end());
for (auto I = PredicatedSCEVRewrites.begin();
I != PredicatedSCEVRewrites.end();) {
std::pair<const SCEV *, const Loop *> Entry = I->first;
- if (Entry.first == S)
+ if (ToForget.count(Entry.first))
PredicatedSCEVRewrites.erase(I++);
else
++I;
}
- auto RemoveSCEVFromBackedgeMap =
- [S](DenseMap<const Loop *, BackedgeTakenInfo> &Map) {
+ auto RemoveSCEVFromBackedgeMap = [this, &ToForget](
+ DenseMap<const Loop *, BackedgeTakenInfo> &Map) {
for (auto I = Map.begin(), E = Map.end(); I != E;) {
BackedgeTakenInfo &BEInfo = I->second;
- if (BEInfo.hasOperand(S))
+ if (any_of(ToForget,
+ [&BEInfo](const SCEV *S) { return BEInfo.hasOperand(S); }))
Map.erase(I++);
else
++I;
}
- };
+ };
RemoveSCEVFromBackedgeMap(BackedgeTakenCounts);
RemoveSCEVFromBackedgeMap(PredicatedBackedgeTakenCounts);
}
+void ScalarEvolution::forgetMemoizedResultsImpl(const SCEV *S) {
+ ValuesAtScopes.erase(S);
+ LoopDispositions.erase(S);
+ BlockDispositions.erase(S);
+ UnsignedRanges.erase(S);
+ SignedRanges.erase(S);
+ ExprValueMap.erase(S);
+ HasRecMap.erase(S);
+ MinTrailingZerosCache.erase(S);
+}
+
void
ScalarEvolution::getUsedLoops(const SCEV *S,
SmallPtrSetImpl<const Loop *> &LoopsUsed) {