message: [Assembler] Handle fallback case if pseudo-instr alias with normal instruction
diff: @@ -486,14 +486,26 @@ protected:
  virtual PseudoExpandRes expandPseudoOp(const TokenizedSrcLine& line) const {
  if (line.tokens.empty()) {
  - return std::nullopt;
  + return PseudoExpandRes(std::nullopt);
  }
  const auto& opcode = line.tokens.at(0);
  if (m_pseudoInstructionMap.count(opcode) == 0) {
  // Not a pseudo instruction
  - return std::nullopt;
  + return PseudoExpandRes(std::nullopt);
  + }
  + auto res = m_pseudoInstructionMap.at(opcode)->expand(line);
  + try {
  + auto& error = std::get<Error>(res);
  + if (m_instructionMap.count(opcode) != 0) {
  + // If this pseudo-instruction aliases with an instruction but threw an error (could arise if ie.
  + // arguments provided were intended for the normal instruction and not the pseudoinstruction), then
  + // return as if not a pseudo-instruction, falling to normal instruction handling
  + return PseudoExpandRes(std::nullopt);
  + }
  + } catch (const std::bad_variant_access&) {
  }
  - return m_pseudoInstructionMap.at(opcode)->expand(line);
  + // Return result (containing either a valid pseudo-instruction expand error or the expanded pseudo instruction
  + return {res};
  }
  virtual AssembleRes assembleInstruction(const TokenizedSrcLine& line, std::weak_ptr<Instr>& assembledWith) const {
  