Wed, 15 Feb 2012 16:29:40 -0800
7142680: default GC affected by jvm path
Summary: Removed old tiered code
Reviewed-by: never, kvn
1 /*
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "runtime/stackValueCollection.hpp"
27 #ifdef TARGET_ARCH_x86
28 # include "jniTypes_x86.hpp"
29 #endif
30 #ifdef TARGET_ARCH_sparc
31 # include "jniTypes_sparc.hpp"
32 #endif
33 #ifdef TARGET_ARCH_zero
34 # include "jniTypes_zero.hpp"
35 #endif
36 #ifdef TARGET_ARCH_arm
37 # include "jniTypes_arm.hpp"
38 #endif
39 #ifdef TARGET_ARCH_ppc
40 # include "jniTypes_ppc.hpp"
41 #endif
43 jint StackValueCollection::int_at(int slot) const {
44 intptr_t val = at(slot)->get_int();
45 jint ival = *((jint*) (&val));
46 return ival;
47 }
49 jlong StackValueCollection::long_at(int slot) const {
50 #ifdef _LP64
51 return at(slot+1)->get_int();
52 #else
53 union {
54 jlong jl;
55 jint array[2];
56 } value;
57 // Interpreter stack is reversed in memory:
58 // low memory location is in higher java local slot.
59 value.array[0] = at(slot+1)->get_int();
60 value.array[1] = at(slot )->get_int();
61 return value.jl;
62 #endif
63 }
65 Handle StackValueCollection::obj_at(int slot) const {
66 return at(slot)->get_obj();
67 }
69 jfloat StackValueCollection::float_at(int slot) const {
70 intptr_t res = at(slot)->get_int();
71 return *((jfloat*) (&res));
72 }
74 jdouble StackValueCollection::double_at(int slot) const {
75 #ifdef _LP64
76 intptr_t res = at(slot+1)->get_int();
77 return *((jdouble*) (&res));
78 #else
79 union {
80 jdouble jd;
81 jint array[2];
82 } value;
83 // Interpreter stack is reversed in memory:
84 // low memory location is in higher java local slot.
85 value.array[0] = at(slot+1)->get_int();
86 value.array[1] = at(slot )->get_int();
87 return value.jd;
88 #endif
89 }
91 void StackValueCollection::set_int_at(int slot, jint value) {
92 intptr_t val;
93 *((jint*) (&val)) = value;
94 at(slot)->set_int(val);
95 }
97 void StackValueCollection::set_long_at(int slot, jlong value) {
98 #ifdef _LP64
99 at(slot+1)->set_int(value);
100 #else
101 union {
102 jlong jl;
103 jint array[2];
104 } x;
105 // Interpreter stack is reversed in memory:
106 // low memory location is in higher java local slot.
107 x.jl = value;
108 at(slot+1)->set_int(x.array[0]);
109 at(slot+0)->set_int(x.array[1]);
110 #endif
111 }
113 void StackValueCollection::set_obj_at(int slot, Handle value) {
114 at(slot)->set_obj(value);
115 }
117 void StackValueCollection::set_float_at(int slot, jfloat value) {
118 #ifdef _LP64
119 union {
120 intptr_t jd;
121 jint array[2];
122 } val;
123 // Interpreter stores 32 bit floats in first half of 64 bit word.
124 val.array[0] = *(jint*)(&value);
125 val.array[1] = 0;
126 at(slot)->set_int(val.jd);
127 #else
128 at(slot)->set_int(*(jint*)(&value));
129 #endif
130 }
132 void StackValueCollection::set_double_at(int slot, jdouble value) {
133 #ifdef _LP64
134 at(slot+1)->set_int(*(intptr_t*)(&value));
135 #else
136 union {
137 jdouble jd;
138 jint array[2];
139 } x;
140 // Interpreter stack is reversed in memory:
141 // low memory location is in higher java local slot.
142 x.jd = value;
143 at(slot+1)->set_int(x.array[0]);
144 at(slot+0)->set_int(x.array[1]);
145 #endif
146 }
148 #ifndef PRODUCT
149 void StackValueCollection::print() {
150 for(int index = 0; index < size(); index++) {
151 tty->print("\t %2d ", index);
152 at(index)->print_on(tty);
153 if( at(index )->type() == T_INT &&
154 index+1 < size() &&
155 at(index+1)->type() == T_INT ) {
156 tty->print(" " INT64_FORMAT " (long)", long_at(index));
157 tty->cr();
158 tty->print("\t %.15e (double)", double_at(index));
159 tty->print(" " PTR64_FORMAT " (longhex)", long_at(index));
160 }
161 tty->cr();
162 }
163 }
164 #endif