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diff src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 6123:2fe087c3e814

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7172967: Eliminate constMethod's _method backpointer to methodOop. Summary: Eliminate constMethod's _method backpointer to methodOop, and move the _constant field from methodOop to constMethod. Reviewed-by: roland, bdelsart, kamg
author jiangli
date Wed, 06 Jun 2012 14:33:43 -0400
parents 6759698e3140
children 1d7922586cf6
line wrap: on
line diff
--- a/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Fri Jun 01 15:30:44 2012 -0700
+++ b/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Wed Jun 06 14:33:43 2012 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2012, 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
@@ -522,7 +522,8 @@
     // get receiver (assume this is frequent case)
     __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0)));
     __ jcc(Assembler::zero, done);
-    __ movptr(rax, Address(rbx, methodOopDesc::constants_offset()));
+    __ movptr(rax, Address(rbx, methodOopDesc::const_offset()));
+    __ movptr(rax, Address(rax, constMethodOopDesc::constants_offset()));
     __ movptr(rax, Address(rax,
                            constantPoolOopDesc::pool_holder_offset_in_bytes()));
     __ movptr(rax, Address(rax, mirror_offset));
@@ -579,7 +580,8 @@
     __ push(0);
   }
 
-  __ movptr(rdx, Address(rbx, methodOopDesc::constants_offset()));
+  __ movptr(rdx, Address(rbx, methodOopDesc::const_offset()));
+  __ movptr(rdx, Address(rdx, constMethodOopDesc::constants_offset()));
   __ movptr(rdx, Address(rdx, constantPoolOopDesc::cache_offset_in_bytes()));
   __ push(rdx); // set constant pool cache
   __ push(r14); // set locals pointer
@@ -629,9 +631,9 @@
     __ testptr(rax, rax);
     __ jcc(Assembler::zero, slow_path);
 
-    __ movptr(rdi, Address(rbx, methodOopDesc::constants_offset()));
     // read first instruction word and extract bytecode @ 1 and index @ 2
     __ movptr(rdx, Address(rbx, methodOopDesc::const_offset()));
+    __ movptr(rdi, Address(rdx, constMethodOopDesc::constants_offset()));
     __ movl(rdx, Address(rdx, constMethodOopDesc::codes_offset()));
     // Shift codes right to get the index on the right.
     // The bytecode fetched looks like <index><0xb4><0x2a>
@@ -1020,7 +1022,8 @@
     __ testl(t, JVM_ACC_STATIC);
     __ jcc(Assembler::zero, L);
     // get mirror
-    __ movptr(t, Address(method, methodOopDesc::constants_offset()));
+    __ movptr(t, Address(method, methodOopDesc::const_offset()));
+    __ movptr(t, Address(t, constMethodOopDesc::constants_offset()));
     __ movptr(t, Address(t, constantPoolOopDesc::pool_holder_offset_in_bytes()));
     __ movptr(t, Address(t, mirror_offset));
     // copy mirror into activation frame