423   bool canReduce(const Rule &R, RuleID RID,  in canReduce()  argument
427     if (auto Guard = Lang.Guards.lookup(RID))  in canReduce()
431                                 Lang.G.dumpRule(RID)));  in canReduce()
436   void pop(const GSS::Node *Head, RuleID RID, const Rule &Rule) {  in pop()  argument
437     LLVM_DEBUG(llvm::dbgs() << "  Pop " << Lang.G.dumpRule(RID) << "\n");  in pop()
438     Family F{/*Start=*/0, /*Symbol=*/Rule.Target, /*Rule=*/RID};  in pop()
448         if (!canReduce(Rule, RID, TempSequence))  in pop()
471       for (RuleID RID :  in popPending()  local
473         const auto &Rule = Lang.G.lookupRule(RID);  in popPending()
475           pop((*Heads)[NextPopHead], RID, Rule);  in popPending()
560     llvm::Optional<RuleID> RID;  in popAndPushTrivial()  local
562       if (RID.has_value())  in popAndPushTrivial()
564       RID = R;  in popAndPushTrivial()
566     if (!RID)  in popAndPushTrivial()
568     const auto &Rule = Lang.G.lookupRule(*RID);  in popAndPushTrivial()
579     if (!canReduce(Rule, *RID, TempSequence))  in popAndPushTrivial()
582         &Params.Forest.createSequence(Rule.Target, *RID, TempSequence);  in popAndPushTrivial()