src/share/vm/opto/callGenerator.cpp

*** 152,163 ****
--- 152,165 ----
      call->set_override_symbolic_info(true);
    }
    _call_node = call;  // Save the call node in case we need it later
    if (!is_static) {
      if (kit.argument(0)->is_ValueType()) {
+       if (!ValueTypePassFieldsAsArgs) {
          ValueTypeNode* vt = kit.argument(0)->as_ValueType();
          vt->store_to_memory(&kit);
+       }
      } else {
        // Make an explicit receiver null_check as part of this call.
        // Since we share a map with the caller, his JVMS gets adjusted.
        kit.null_check_receiver_before_call(method());
      }
*** 368,378 ****
    if (call == NULL || call->outcnt() == 0 ||
        call->in(0) == NULL || call->in(0)->is_top()) {
      return;
    }
  
!   const TypeTuple *r = call->tf()->domain();
    for (int i1 = 0; i1 < method()->arg_size(); i1++) {
      if (call->in(TypeFunc::Parms + i1)->is_top() && r->field_at(TypeFunc::Parms + i1) != Type::HALF) {
        assert(Compile::current()->inlining_incrementally(), "shouldn't happen during parsing");
        return;
      }
--- 370,384 ----
    if (call == NULL || call->outcnt() == 0 ||
        call->in(0) == NULL || call->in(0)->is_top()) {
      return;
    }
    
!   // FIXME: late inlining of methods that take value type arguments is
!   // broken: arguments at the call are set up so fields of value type
!   // arguments are passed but code here expects a single argument per
!   // value type (a ValueTypeNode) instead.
!   const TypeTuple *r = call->tf()->domain_sig();
    for (int i1 = 0; i1 < method()->arg_size(); i1++) {
      if (call->in(TypeFunc::Parms + i1)->is_top() && r->field_at(TypeFunc::Parms + i1) != Type::HALF) {
        assert(Compile::current()->inlining_incrementally(), "shouldn't happen during parsing");
        return;
      }