src/hotspot/share/code/compiledIC.cpp

*** 235,245 ****
    assert(nm->contains(ic_call), "must be in compiled method");
  
    initialize_from_iter(iter);
  }
  
! bool CompiledIC::set_to_megamorphic(CallInfo* call_info, Bytecodes::Code bytecode, TRAPS) {
    assert(CompiledICLocker::is_safe(_method), "mt unsafe call");
    assert(!is_optimized(), "cannot set an optimized virtual call to megamorphic");
    assert(is_call_to_compiled() || is_call_to_interpreted(), "going directly to megamorphic?");
  
    address entry;
--- 235,251 ----
    assert(nm->contains(ic_call), "must be in compiled method");
  
    initialize_from_iter(iter);
  }
  
! // This function may fail for two reasons: either due to running out of vtable
! // stubs, or due to running out of IC stubs in an attempted transition to a
! // transitional state. The needs_ic_stub_refill value will be set if the failure
! // was due to running out of IC stubs, in which case the caller will refill IC
! // stubs and retry.
! bool CompiledIC::set_to_megamorphic(CallInfo* call_info, Bytecodes::Code bytecode,
!                                     bool& needs_ic_stub_refill, TRAPS) {
    assert(CompiledICLocker::is_safe(_method), "mt unsafe call");
    assert(!is_optimized(), "cannot set an optimized virtual call to megamorphic");
    assert(is_call_to_compiled() || is_call_to_interpreted(), "going directly to megamorphic?");
  
    address entry;
***************
*** 259,268 ****
--- 265,275 ----
      CompiledICHolder* holder = new CompiledICHolder(call_info->resolved_method()->method_holder(),
                                                      call_info->resolved_klass(), false);
      holder->claim();
      if (!InlineCacheBuffer::create_transition_stub(this, holder, entry)) {
        delete holder;
+       needs_ic_stub_refill = true;
        return false;
      }
    } else {
      assert(call_info->call_kind() == CallInfo::vtable_call, "either itable or vtable");
      // Can be different than selected_method->vtable_index(), due to package-private etc.
***************
*** 271,280 ****
--- 278,288 ----
      entry = VtableStubs::find_vtable_stub(vtable_index);
      if (entry == NULL) {
        return false;
      }
      if (!InlineCacheBuffer::create_transition_stub(this, NULL, entry)) {
+       needs_ic_stub_refill = true;
        return false;
      }
    }
  
    if (TraceICs) {