# HG changeset patch
# User coleenp
# Date 1452193189 18000
# Node ID 95af21ea8eb03bbed78026452afc9792c8966cd6
# Parent  291ee208fb72e728dd6fd6cf9d2b295a263d9576
8146518: Zero interpreter broken with better byte behaviours
Summary: replaced Method::_result_type_index with Method::_result_type for better byte behaviours should be used for Zero also.
Reviewed-by: roland, kvn, bdelsart, kevinw

diff -r 291ee208fb72 -r 95af21ea8eb0 hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp
--- a/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Tue Oct 13 18:13:34 2015 -0400
+++ b/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Thu Jan 07 13:59:49 2016 -0500
@@ -94,6 +94,7 @@
     case T_SHORT:
       return (intptr_t)(jshort)result;
     case T_OBJECT:  // nothing to do fall through
+    case T_ARRAY:
     case T_LONG:
     case T_INT:
     case T_FLOAT:
@@ -184,7 +185,7 @@
     }
     else if (istate->msg() == BytecodeInterpreter::return_from_method) {
       // Copy the result into the caller's frame
-      result_slots = type2size[result_type_of(method)];
+      result_slots = type2size[method->result_type()];
       assert(result_slots >= 0 && result_slots <= 2, "what?");
       result = istate->stack() + result_slots;
       break;
@@ -222,7 +223,7 @@
     // Adjust result to smaller
     intptr_t res = result[-i];
     if (result_slots == 1) {
-      res = narrow(result_type_of(method), res);
+      res = narrow(method->result_type(), res);
     }
     stack->push(res);
   }
@@ -436,7 +437,7 @@
 
   // Push our result
   if (!HAS_PENDING_EXCEPTION) {
-    BasicType type = result_type_of(method);
+    BasicType type = method->result_type();
     stack->set_sp(stack->sp() - type2size[type]);
 
     switch (type) {
diff -r 291ee208fb72 -r 95af21ea8eb0 hotspot/src/cpu/zero/vm/cppInterpreter_zero.hpp
--- a/hotspot/src/cpu/zero/vm/cppInterpreter_zero.hpp	Tue Oct 13 18:13:34 2015 -0400
+++ b/hotspot/src/cpu/zero/vm/cppInterpreter_zero.hpp	Thu Jan 07 13:59:49 2016 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -49,8 +49,4 @@
   static intptr_t* calculate_unwind_sp(ZeroStack* stack, oop method_handle);
   static void throw_exception(JavaThread* thread, Symbol* name,char *msg=NULL);
 
- private:
-  // Fast result type determination
-  static BasicType result_type_of(Method* method);
-
 #endif // CPU_ZERO_VM_CPPINTERPRETER_ZERO_HPP
diff -r 291ee208fb72 -r 95af21ea8eb0 hotspot/src/share/vm/oops/method.cpp
--- a/hotspot/src/share/vm/oops/method.cpp	Tue Oct 13 18:13:34 2015 -0400
+++ b/hotspot/src/share/vm/oops/method.cpp	Thu Jan 07 13:59:49 2016 -0500
@@ -84,9 +84,6 @@
   NoSafepointVerifier no_safepoint;
   set_constMethod(xconst);
   set_access_flags(access_flags);
-#ifdef CC_INTERP
-  set_result_index(T_VOID);
-#endif
   set_intrinsic_id(vmIntrinsics::_none);
   set_jfr_towrite(false);
   set_force_inline(false);
@@ -445,12 +442,6 @@
   set_size_of_parameters(asc.size() + (is_static() ? 0 : 1));
 }
 
-#ifdef CC_INTERP
-void Method::set_result_index(BasicType type)          {
-  _result_index = Interpreter::BasicType_as_index(type);
-}
-#endif
-
 BasicType Method::result_type() const {
   ResultTypeFinder rtf(signature());
   return rtf.type();
diff -r 291ee208fb72 -r 95af21ea8eb0 hotspot/src/share/vm/oops/method.hpp
--- a/hotspot/src/share/vm/oops/method.hpp	Tue Oct 13 18:13:34 2015 -0400
+++ b/hotspot/src/share/vm/oops/method.hpp	Thu Jan 07 13:59:49 2016 -0500
@@ -69,9 +69,6 @@
   AccessFlags       _access_flags;               // Access flags
   int               _vtable_index;               // vtable index of this method (see VtableIndexFlag)
                                                  // note: can have vtables with >2**16 elements (because of inheritance)
-#ifdef CC_INTERP
-  int               _result_index;               // C++ interpreter needs for converting results to/from stack
-#endif
   u2                _intrinsic_id;               // vmSymbols::intrinsic_id (0 == _none)
 
   // Flags
@@ -171,11 +168,6 @@
     return constMethod()->type_annotations();
   }
 
-#ifdef CC_INTERP
-  void set_result_index(BasicType type);
-  int  result_index()                            { return _result_index; }
-#endif
-
   // Helper routine: get klass name + "." + method name + signature as
   // C string, for the purpose of providing more useful NoSuchMethodErrors
   // and fatal error handling. The string is allocated in resource
@@ -552,7 +544,6 @@
   void compute_size_of_parameters(Thread *thread); // word size of parameters (receiver if any + arguments)
   Symbol* klass_name() const;                    // returns the name of the method holder
   BasicType result_type() const;                 // type of the method result
-  int result_type_index() const;                 // type index of the method result
   bool is_returning_oop() const                  { BasicType r = result_type(); return (r == T_OBJECT || r == T_ARRAY); }
   bool is_returning_fp() const                   { BasicType r = result_type(); return (r == T_FLOAT || r == T_DOUBLE); }
 
@@ -653,9 +644,6 @@
   // interpreter support
   static ByteSize const_offset()                 { return byte_offset_of(Method, _constMethod       ); }
   static ByteSize access_flags_offset()          { return byte_offset_of(Method, _access_flags      ); }
-#ifdef CC_INTERP
-  static ByteSize result_index_offset()          { return byte_offset_of(Method, _result_index ); }
-#endif /* CC_INTERP */
   static ByteSize from_compiled_offset()         { return byte_offset_of(Method, _from_compiled_entry); }
   static ByteSize code_offset()                  { return byte_offset_of(Method, _code); }
   static ByteSize method_data_offset()           {