1 /*
2 * Copyright (c) 1997, 2016, 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 *
142 int i = 0;
143 switch (type) {
144 case T_BOOLEAN: i = 0; break;
145 case T_CHAR : i = 1; break;
146 case T_BYTE : i = 2; break;
147 case T_SHORT : i = 3; break;
148 case T_INT : i = 4; break;
149 case T_LONG : i = 5; break;
150 case T_VOID : i = 6; break;
151 case T_FLOAT : i = 7; break;
152 case T_DOUBLE : i = 8; break;
153 case T_OBJECT : i = 9; break;
154 case T_ARRAY : i = 9; break;
155 default : ShouldNotReachHere();
156 }
157 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers,
158 "index out of bounds");
159 return i;
160 }
161 #endif // _LP64
162
163 // These should never be compiled since the interpreter will prefer
164 // the compiled version to the intrinsic version.
165 bool AbstractInterpreter::can_be_compiled(methodHandle m) {
166 switch (method_kind(m)) {
167 case Interpreter::java_lang_math_sin : // fall thru
168 case Interpreter::java_lang_math_cos : // fall thru
169 case Interpreter::java_lang_math_tan : // fall thru
170 case Interpreter::java_lang_math_abs : // fall thru
171 case Interpreter::java_lang_math_log : // fall thru
172 case Interpreter::java_lang_math_log10 : // fall thru
173 case Interpreter::java_lang_math_sqrt : // fall thru
174 case Interpreter::java_lang_math_pow : // fall thru
175 case Interpreter::java_lang_math_exp : // fall thru
176 case Interpreter::java_lang_math_fmaD : // fall thru
177 case Interpreter::java_lang_math_fmaF :
178 return false;
179 default:
180 return true;
181 }
182 }
183
184 // How much stack a method activation needs in words.
185 int AbstractInterpreter::size_top_interpreter_activation(Method* method) {
186 const int entry_size = frame::interpreter_frame_monitor_size();
187
188 // total overhead size: entry_size + (saved rbp thru expr stack
189 // bottom). be sure to change this if you add/subtract anything
190 // to/from the overhead area
191 const int overhead_size =
192 -(frame::interpreter_frame_initial_sp_offset) + entry_size;
193
194 #ifndef _LP64
195 const int stub_code = 4; // see generate_call_stub
196 #else
197 const int stub_code = frame::entry_frame_after_call_words;
198 #endif
199
200 const int method_stack = (method->max_locals() + method->max_stack()) *
201 Interpreter::stackElementWords;
202 return (overhead_size + method_stack + stub_code);
|
1 /*
2 * Copyright (c) 1997, 2017, 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 *
142 int i = 0;
143 switch (type) {
144 case T_BOOLEAN: i = 0; break;
145 case T_CHAR : i = 1; break;
146 case T_BYTE : i = 2; break;
147 case T_SHORT : i = 3; break;
148 case T_INT : i = 4; break;
149 case T_LONG : i = 5; break;
150 case T_VOID : i = 6; break;
151 case T_FLOAT : i = 7; break;
152 case T_DOUBLE : i = 8; break;
153 case T_OBJECT : i = 9; break;
154 case T_ARRAY : i = 9; break;
155 default : ShouldNotReachHere();
156 }
157 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers,
158 "index out of bounds");
159 return i;
160 }
161 #endif // _LP64
162
163 // How much stack a method activation needs in words.
164 int AbstractInterpreter::size_top_interpreter_activation(Method* method) {
165 const int entry_size = frame::interpreter_frame_monitor_size();
166
167 // total overhead size: entry_size + (saved rbp thru expr stack
168 // bottom). be sure to change this if you add/subtract anything
169 // to/from the overhead area
170 const int overhead_size =
171 -(frame::interpreter_frame_initial_sp_offset) + entry_size;
172
173 #ifndef _LP64
174 const int stub_code = 4; // see generate_call_stub
175 #else
176 const int stub_code = frame::entry_frame_after_call_words;
177 #endif
178
179 const int method_stack = (method->max_locals() + method->max_stack()) *
180 Interpreter::stackElementWords;
181 return (overhead_size + method_stack + stub_code);
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