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comparison src/cpu/sparc/vm/interpreter_sparc.hpp @ 1506:2338d41fbd81

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6943304: remove tagged stack interpreter Reviewed-by: coleenp, never, gbenson
author twisti
date Fri, 30 Apr 2010 08:37:24 -0700
parents a61af66fc99e
children c18cbe5936b8
comparison
equal deleted inserted replaced
1505:0c5b3cf3c1f5 1506:2338d41fbd81
1 /* 1 /*
2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
22 * 22 *
23 */ 23 */
24 24
25 public: 25 public:
26 26
27 // Support for Tagged Stacks 27 static int expr_offset_in_bytes(int i) { return stackElementSize * i + wordSize; }
28 28
29 // Stack index relative to tos (which points at value) 29 // Stack index relative to tos (which points at value)
30 static int expr_index_at(int i) { 30 static int expr_index_at(int i) { return stackElementWords * i; }
31 return stackElementWords() * i;
32 }
33
34 static int expr_tag_index_at(int i) {
35 assert(TaggedStackInterpreter, "should not call this");
36 // tag is one word above java stack element
37 return stackElementWords() * i + 1;
38 }
39
40 static int expr_offset_in_bytes(int i) { return stackElementSize()*i + wordSize; }
41 static int expr_tag_offset_in_bytes (int i) {
42 assert(TaggedStackInterpreter, "should not call this");
43 return expr_offset_in_bytes(i) + wordSize;
44 }
45 31
46 // Already negated by c++ interpreter 32 // Already negated by c++ interpreter
47 static int local_index_at(int i) { 33 static int local_index_at(int i) {
48 assert(i<=0, "local direction already negated"); 34 assert(i <= 0, "local direction already negated");
49 return stackElementWords() * i + (value_offset_in_bytes()/wordSize); 35 return stackElementWords * i;
50 } 36 }
51
52 static int local_tag_index_at(int i) {
53 assert(i<=0, "local direction already negated");
54 assert(TaggedStackInterpreter, "should not call this");
55 return stackElementWords() * i + (tag_offset_in_bytes()/wordSize);
56 }