src/hotspot/share/oops/resolvedFieldEntry.cpp

@@ -22,10 +22,13 @@
   *
   */
  
  #include "precompiled.hpp"
  #include "resolvedFieldEntry.hpp"
+ #include "interpreter/bytecodes.hpp"
+ #include "oops/instanceOop.hpp"
+ #include "utilities/globalDefinitions.hpp"
  
  void ResolvedFieldEntry::print_on(outputStream* st) const {
    st->print_cr("Field Entry:");
  
    if (field_holder() != nullptr) {

@@ -37,14 +40,25 @@
    st->print_cr(" - Field Index: %d", field_index());
    st->print_cr(" - CP Index: %d", constant_pool_index());
    st->print_cr(" - TOS: %s", type2name(as_BasicType((TosState)tos_state())));
    st->print_cr(" - Is Final: %d", is_final());
    st->print_cr(" - Is Volatile: %d", is_volatile());
+   st->print_cr(" - Is Flat: %d", is_flat());
+   st->print_cr(" - Is Null Free Inline Type: %d", is_null_free_inline_type());
    st->print_cr(" - Get Bytecode: %s", Bytecodes::name((Bytecodes::Code)get_code()));
    st->print_cr(" - Put Bytecode: %s", Bytecodes::name((Bytecodes::Code)put_code()));
  }
  
+ bool ResolvedFieldEntry::is_valid() const {
+   return field_holder()->is_instance_klass() &&
+     field_offset() >= instanceOopDesc::base_offset_in_bytes() && field_offset() < 0x7fffffff &&
+     as_BasicType((TosState)tos_state()) != T_ILLEGAL &&
+     _flags < (1 << (max_flag_shift + 1)) &&
+     (get_code() == 0 || get_code() == Bytecodes::_getstatic || get_code() == Bytecodes::_getfield) &&
+     (put_code() == 0 || put_code() == Bytecodes::_putstatic || put_code() == Bytecodes::_putfield);
+ }
+ 
  void ResolvedFieldEntry::remove_unshareable_info() {
    u2 saved_cpool_index = _cpool_index;
    memset(this, 0, sizeof(*this));
    _cpool_index = saved_cpool_index;
  }