message: fix Type::getCommonAccessSize() for non-ptr vectors
diff: @@ -1424,6 +1424,13 @@ bool hasSubByte(const Type &t) {
  uint64_t getCommonAccessSize(const IR::Type &ty) {
  if (auto agg = ty.getAsAggregateType()) {
  + // non-pointer vectors are store/loaded all at once
  + if (agg->isVectorType()) {
  + auto &elemTy = agg->getChild(0);
  + if (!elemTy.isPtrType())
  + return divide_up(agg->numElementsConst() * elemTy.bits(), 8);
  + }
  +
  uint64_t sz = 1;
  for (unsigned i = 0, e = agg->numElementsConst(); i != e; ++i) {
  auto n = getCommonAccessSize(agg->getChild(i));
  