8203005: The top-of-stack type specified for nofast_* bytecodes are wrong

The change was left by 8074345 the types were wrongly put as T_ILLEGAL for T_OBJECT, and T_ILLEGAL for T_INT.

Reviewed-by: dcubed, cjplummer

Author: yminqi

src/hotspot/share/interpreter/bytecodes.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -532,8 +532,8 @@ void Bytecodes::initialize() {
   def(_nofast_getfield     , "nofast_getfield"     , "bJJ"  , NULL    , T_ILLEGAL,  0, true,  _getfield       );
   def(_nofast_putfield     , "nofast_putfield"     , "bJJ"  , NULL    , T_ILLEGAL, -2, true , _putfield       );
 
-  def(_nofast_aload_0      , "nofast_aload_0"      , "b"    , NULL    , T_ILLEGAL,  1, true , _aload_0        );
-  def(_nofast_iload        , "nofast_iload"        , "bi"   , NULL    , T_ILLEGAL,  1, false, _iload          );
+  def(_nofast_aload_0      , "nofast_aload_0"      , "b"    , NULL    , T_OBJECT,   1, true , _aload_0        );
+  def(_nofast_iload        , "nofast_iload"        , "bi"   , NULL    , T_INT,      1, false, _iload          );
 
   def(_shouldnotreachhere  , "_shouldnotreachhere" , "b"    , NULL    , T_VOID   ,  0, false);
 

src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/interpreter/Bytecodes.java

@@ -818,8 +818,8 @@ private static void initialize() {
     // CDS specific. Bytecodes rewritten at CDS dump time
     def(_nofast_getfield     , "_nofast_getfield"    , "bJJ"  , null    , BasicType.getTIllegal() , 0, true,  _getfield );
     def(_nofast_putfield     , "_nofast_putfield"    , "bJJ"  , null    , BasicType.getTIllegal() ,-2, true,  _putfield );
-    def(_nofast_aload_0      , "_nofast_aload_0"     , "b"    , null    , BasicType.getTIllegal() , 1, true,  _aload_0  );
-    def(_nofast_iload        , "_nofast_iload"       , "bi"   , null    , BasicType.getTIllegal() , 1, false, _iload    );
+    def(_nofast_aload_0      , "_nofast_aload_0"     , "b"    , null    , BasicType.getTObject()  , 1, true,  _aload_0  );
+    def(_nofast_iload        , "_nofast_iload"       , "bi"   , null    , BasicType.getTInt()     , 1, false, _iload    );
 
     def(_shouldnotreachhere  , "_shouldnotreachhere" , "b"    , null    , BasicType.getTVoid()   ,  0, false);