527   RelaxAux Aux;  in initRelaxAux()  local
528   Aux.Config.IsRV32 = G.getTargetTriple().isRISCV32();  in initRelaxAux()
530   Aux.Config.HasRVC = llvm::is_contained(Features, "+c") ||  in initRelaxAux()
537       auto BlockEmplaceResult = Aux.Blocks.try_emplace(B);  in initRelaxAux()
546         Aux.Blocks.erase(BlockEmplaceResult.first);  in initRelaxAux()
570   for (auto &BlockAuxIter : Aux.Blocks) {  in initRelaxAux()
576   return Aux;  in initRelaxAux()
593 static void relaxCall(const Block &B, BlockRelaxAux &Aux,  in relaxCall()  argument
605     Aux.Writes.push_back(0xa001); // c.j  in relaxCall()
609     Aux.Writes.push_back(0x2001); // c.jal  in relaxCall()
613     Aux.Writes.push_back(0x6f | RD << 7); // jal  in relaxCall()
622 static bool relaxBlock(LinkGraph &G, Block &Block, BlockRelaxAux &Aux,  in relaxBlock()  argument
626   ArrayRef<SymbolAnchor> SA = ArrayRef(Aux.Anchors);  in relaxBlock()
629   Aux.EdgeKinds.assign(Aux.EdgeKinds.size(), Edge::Invalid);  in relaxBlock()
630   Aux.Writes.clear();  in relaxBlock()
632   for (auto [I, E] : llvm::enumerate(Aux.RelaxEdges)) {  in relaxBlock()
634     auto &Cur = Aux.RelocDeltas[I];  in relaxBlock()
638       relaxAlign(Loc, *E, Remove, Aux.EdgeKinds[I]);  in relaxBlock()
641       relaxCall(Block, Aux, Config, Loc, *E, Remove, Aux.EdgeKinds[I]);  in relaxBlock()
674 static bool relaxOnce(LinkGraph &G, RelaxAux &Aux) {  in relaxOnce()  argument
677   for (auto &[B, BlockAux] : Aux.Blocks)  in relaxOnce()
678     Changed |= relaxBlock(G, *B, BlockAux, Aux.Config);  in relaxOnce()
683 static void finalizeBlockRelax(LinkGraph &G, Block &Block, BlockRelaxAux &Aux) {  in finalizeBlockRelax()  argument
686   auto NextWrite = Aux.Writes.begin();  in finalizeBlockRelax()
692   for (auto [I, E] : llvm::enumerate(Aux.RelaxEdges)) {  in finalizeBlockRelax()
693     uint32_t Remove = Aux.RelocDeltas[I] - Delta;  in finalizeBlockRelax()
694     Delta = Aux.RelocDeltas[I];  in finalizeBlockRelax()
695     if (Remove == 0 && Aux.EdgeKinds[I] == Edge::Invalid)  in finalizeBlockRelax()
704     switch (Aux.EdgeKinds[I]) {  in finalizeBlockRelax()
746     if (I < Aux.RelaxEdges.size() && Aux.RelaxEdges[I] == &E) {  in finalizeBlockRelax()
747       if (Aux.EdgeKinds[I] != Edge::Invalid)  in finalizeBlockRelax()
748         E.setKind(Aux.EdgeKinds[I]);  in finalizeBlockRelax()
750       Delta = Aux.RelocDeltas[I];  in finalizeBlockRelax()
766 static void finalizeRelax(LinkGraph &G, RelaxAux &Aux) {  in finalizeRelax()  argument
767   for (auto &[B, BlockAux] : Aux.Blocks)  in finalizeRelax()
772   auto Aux = initRelaxAux(G);  in relax()  local
773   while (relaxOnce(G, Aux)) {  in relax()
775   finalizeRelax(G, Aux);  in relax()