auto rhs_index = rhs_map.find(lhs[i]);
    auto out_index = out_map.find(lhs[i]);
    if (rhs_index == rhs_map.end() && out_index == out_map.end()) {
      dnums.lhs.emplace_back(i);
    } else if (rhs_index == rhs_map.end()) {
      dnums.lhs_out.emplace_back(i, out_index->second);
    } else if (out_index == out_map.end()) {
      dnums.lhs_rhs.emplace_back(i, rhs_index->second);
    } else {

	{name: "GetCallerPC"},                         // for getcallerpc intrinsic
	{name: "GetCallerSP", argLength: 1},           // for getcallersp intrinsic. arg0=mem.

	// Indexing operations
	{name: "PtrIndex", argLength: 2},             // arg0=ptr, arg1=index. Computes ptr+sizeof(*v.type)*index, where index is extended to ptrwidth type
	{name: "OffPtr", argLength: 1, aux: "Int64"}, // arg0 + auxint (arg0 and result are pointers)