support for hashCode on inline types

Author: MichaelHaas99

src/hotspot/share/jvmci/jvmciRuntime.cpp

@@ -427,6 +427,18 @@ JRT_ENTRY(jboolean, JVMCIRuntime::substitutability_check(JavaThread* current, oo
   return result.get_jboolean();
 JRT_END
 
+JRT_ENTRY(jint, JVMCIRuntime::value_object_hashCode(JavaThread* current, oopDesc* obj))
+  JavaCallArguments args;
+  args.push_oop(Handle(THREAD, obj));
+  JavaValue result(T_INT);
+  JavaCalls::call_static(&result,
+                         vmClasses::ValueObjectMethods_klass(),
+                         vmSymbols::valueObjectHashCode_name(),
+                         vmSymbols::object_int_signature(),
+                         &args, CHECK_0);
+  return result.get_jint();
+JRT_END
+
 // Object.notifyAll() fast path, caller does slow path
 JRT_LEAF(jboolean, JVMCIRuntime::object_notifyAll(JavaThread* current, oopDesc* obj))
   assert(current == JavaThread::current(), "pre-condition");

src/hotspot/share/jvmci/jvmciRuntime.hpp

@@ -521,13 +521,14 @@ class JVMCIRuntime: public CHeapObj<mtJVMCI> {
 
   static void vm_message(jboolean vmError, jlong format, jlong v1, jlong v2, jlong v3);
   static jint identity_hash_code(JavaThread* current, oopDesc* obj);
+  static jint value_object_hashCode(JavaThread* current, oopDesc* obj);
   static address exception_handler_for_pc(JavaThread* current);
   static void monitorenter(JavaThread* current, oopDesc* obj, BasicLock* lock);
   static void monitorexit (JavaThread* current, oopDesc* obj, BasicLock* lock);
   static jboolean object_notify(JavaThread* current, oopDesc* obj);
   static jboolean object_notifyAll(JavaThread* current, oopDesc* obj);
   static jboolean substitutability_check(JavaThread* current, oopDesc* left, oopDesc* right);
-  
+
   static void vm_error(JavaThread* current, jlong where, jlong format, jlong value);
   static oopDesc* load_and_clear_exception(JavaThread* thread);
   static void log_printf(JavaThread* thread, const char* format, jlong v1, jlong v2, jlong v3);

src/hotspot/share/jvmci/vmStructs_jvmci.cpp

@@ -878,6 +878,7 @@
   declare_function(JVMCIRuntime::monitorenter)                            \
   declare_function(JVMCIRuntime::monitorexit)                             \
   declare_function(JVMCIRuntime::substitutability_check)                  \
+  declare_function(JVMCIRuntime::value_object_hashCode)                   \
   declare_function(JVMCIRuntime::object_notify)                           \
   declare_function(JVMCIRuntime::object_notifyAll)                        \
   declare_function(JVMCIRuntime::throw_and_post_jvmti_exception)          \