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rev 2237 : [mq]: initial-intrinsification-changes
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--- old/src/share/vm/interpreter/abstractInterpreter.hpp
+++ new/src/share/vm/interpreter/abstractInterpreter.hpp
1 1 /*
2 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 4 *
5 5 * This code is free software; you can redistribute it and/or modify it
6 6 * under the terms of the GNU General Public License version 2 only, as
7 7 * published by the Free Software Foundation.
8 8 *
9 9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 12 * version 2 for more details (a copy is included in the LICENSE file that
13 13 * accompanied this code).
14 14 *
15 15 * You should have received a copy of the GNU General Public License version
16 16 * 2 along with this work; if not, write to the Free Software Foundation,
17 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 18 *
19 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 20 * or visit www.oracle.com if you need additional information or have any
21 21 * questions.
22 22 *
23 23 */
24 24
25 25 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
26 26 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
27 27
28 28 #include "code/stubs.hpp"
29 29 #include "interpreter/bytecodes.hpp"
30 30 #include "runtime/vmThread.hpp"
31 31 #include "utilities/top.hpp"
32 32 #ifdef TARGET_ARCH_MODEL_x86_32
33 33 # include "interp_masm_x86_32.hpp"
34 34 #endif
35 35 #ifdef TARGET_ARCH_MODEL_x86_64
36 36 # include "interp_masm_x86_64.hpp"
37 37 #endif
38 38 #ifdef TARGET_ARCH_MODEL_sparc
39 39 # include "interp_masm_sparc.hpp"
40 40 #endif
41 41 #ifdef TARGET_ARCH_MODEL_zero
42 42 # include "interp_masm_zero.hpp"
43 43 #endif
44 44 #ifdef TARGET_ARCH_MODEL_arm
45 45 # include "interp_masm_arm.hpp"
46 46 #endif
47 47 #ifdef TARGET_ARCH_MODEL_ppc
48 48 # include "interp_masm_ppc.hpp"
49 49 #endif
50 50 #ifdef TARGET_OS_FAMILY_linux
51 51 # include "thread_linux.inline.hpp"
52 52 #endif
53 53 #ifdef TARGET_OS_FAMILY_solaris
54 54 # include "thread_solaris.inline.hpp"
55 55 #endif
56 56 #ifdef TARGET_OS_FAMILY_windows
57 57 # include "thread_windows.inline.hpp"
58 58 #endif
59 59
60 60 // This file contains the platform-independent parts
61 61 // of the abstract interpreter and the abstract interpreter generator.
62 62
63 63 // Organization of the interpreter(s). There exists two different interpreters in hotpot
64 64 // an assembly language version (aka template interpreter) and a high level language version
65 65 // (aka c++ interpreter). Th division of labor is as follows:
66 66
67 67 // Template Interpreter C++ Interpreter Functionality
68 68 //
69 69 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes
70 70 //
71 71 // templateInterpreter* cppInterpreter* generation of assembly code that creates
72 72 // and manages interpreter runtime frames.
73 73 // Also code for populating interpreter
74 74 // frames created during deoptimization.
75 75 //
76 76 // For both template and c++ interpreter. There are common files for aspects of the interpreter
77 77 // that are generic to both interpreters. This is the layout:
78 78 //
79 79 // abstractInterpreter.hpp: generic description of the interpreter.
80 80 // interpreter*: generic frame creation and handling.
81 81 //
82 82
83 83 //------------------------------------------------------------------------------------------------------------------------
84 84 // The C++ interface to the bytecode interpreter(s).
85 85
86 86 class AbstractInterpreter: AllStatic {
87 87 friend class VMStructs;
88 88 friend class Interpreter;
89 89 friend class CppInterpreterGenerator;
90 90 public:
91 91 enum MethodKind {
92 92 zerolocals, // method needs locals initialization
93 93 zerolocals_synchronized, // method needs locals initialization & is synchronized
94 94 native, // native method
95 95 native_synchronized, // native method & is synchronized
96 96 empty, // empty method (code: _return)
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97 97 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return)
98 98 abstract, // abstract method (throws an AbstractMethodException)
99 99 method_handle, // java.lang.invoke.MethodHandles::invoke
100 100 java_lang_math_sin, // implementation of java.lang.Math.sin (x)
101 101 java_lang_math_cos, // implementation of java.lang.Math.cos (x)
102 102 java_lang_math_tan, // implementation of java.lang.Math.tan (x)
103 103 java_lang_math_abs, // implementation of java.lang.Math.abs (x)
104 104 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x)
105 105 java_lang_math_log, // implementation of java.lang.Math.log (x)
106 106 java_lang_math_log10, // implementation of java.lang.Math.log10 (x)
107 + java_lang_ref_reference_get, // implementation of java.lang.ref.Reference.get()
107 108 number_of_method_entries,
108 109 invalid = -1
109 110 };
110 111
111 112 enum SomeConstants {
112 113 number_of_result_handlers = 10 // number of result handlers for native calls
113 114 };
114 115
115 116 protected:
116 117 static StubQueue* _code; // the interpreter code (codelets)
117 118
118 119 static bool _notice_safepoints; // true if safepoints are activated
119 120
120 121 static address _native_entry_begin; // Region for native entry code
121 122 static address _native_entry_end;
122 123
123 124 // method entry points
124 125 static address _entry_table[number_of_method_entries]; // entry points for a given method
125 126 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers
126 127 static address _slow_signature_handler; // the native method generic (slow) signature handler
127 128
128 129 static address _rethrow_exception_entry; // rethrows an activation in previous frame
129 130
130 131 friend class AbstractInterpreterGenerator;
131 132 friend class InterpreterGenerator;
132 133 friend class InterpreterMacroAssembler;
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133 134
134 135 public:
135 136 // Initialization/debugging
136 137 static void initialize();
137 138 static StubQueue* code() { return _code; }
138 139
139 140
140 141 // Method activation
141 142 static MethodKind method_kind(methodHandle m);
142 143 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; }
143 - static address entry_for_method(methodHandle m) { return _entry_table[method_kind(m)]; }
144 + static address entry_for_method(methodHandle m) { return entry_for_kind(method_kind(m)); }
144 145
145 146 static void print_method_kind(MethodKind kind) PRODUCT_RETURN;
146 147
147 148 static bool can_be_compiled(methodHandle m);
148 149
149 150 // Runtime support
150 151
151 152 // length = invoke bytecode length (to advance to next bytecode)
152 153 static address deopt_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
153 154 static address return_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
154 155
155 156 static address rethrow_exception_entry() { return _rethrow_exception_entry; }
156 157
157 158 // Activation size in words for a method that is just being called.
158 159 // Parameters haven't been pushed so count them too.
159 160 static int size_top_interpreter_activation(methodOop method);
160 161
161 162 // Deoptimization support
162 163 // Compute the entry address for continuation after
163 164 static address deopt_continue_after_entry(methodOop method,
164 165 address bcp,
165 166 int callee_parameters,
166 167 bool is_top_frame);
167 168 // Compute the entry address for reexecution
168 169 static address deopt_reexecute_entry(methodOop method, address bcp);
169 170 // Deoptimization should reexecute this bytecode
170 171 static bool bytecode_should_reexecute(Bytecodes::Code code);
171 172
172 173 // share implementation of size_activation and layout_activation:
173 174 static int size_activation(methodOop method,
174 175 int temps,
175 176 int popframe_args,
176 177 int monitors,
177 178 int callee_params,
178 179 int callee_locals,
179 180 bool is_top_frame);
180 181
181 182 static int layout_activation(methodOop method,
182 183 int temps,
183 184 int popframe_args,
184 185 int monitors,
185 186 int callee_params,
186 187 int callee_locals,
187 188 frame* caller,
188 189 frame* interpreter_frame,
189 190 bool is_top_frame);
190 191
191 192 // Runtime support
192 193 static bool is_not_reached( methodHandle method, int bci);
193 194 // Safepoint support
194 195 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint
195 196 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints
196 197
197 198 // Support for native calls
198 199 static address slow_signature_handler() { return _slow_signature_handler; }
199 200 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; }
200 201 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table
201 202 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; }
202 203 // Debugging/printing
203 204 static void print(); // prints the interpreter code
204 205
205 206 public:
206 207 // Interpreter helpers
207 208 const static int stackElementWords = 1;
208 209 const static int stackElementSize = stackElementWords * wordSize;
209 210 const static int logStackElementSize = LogBytesPerWord;
210 211
211 212 // Local values relative to locals[n]
212 213 static int local_offset_in_bytes(int n) {
213 214 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize);
214 215 }
215 216
216 217 // access to stacked values according to type:
217 218 static oop* oop_addr_in_slot(intptr_t* slot_addr) {
218 219 return (oop*) slot_addr;
219 220 }
220 221 static jint* int_addr_in_slot(intptr_t* slot_addr) {
221 222 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
222 223 // big-endian LP64
223 224 return (jint*)(slot_addr + 1) - 1;
224 225 else
225 226 return (jint*) slot_addr;
226 227 }
227 228 static jlong long_in_slot(intptr_t* slot_addr) {
228 229 if (sizeof(intptr_t) >= sizeof(jlong)) {
229 230 return *(jlong*) slot_addr;
230 231 } else {
231 232 return Bytes::get_native_u8((address)slot_addr);
232 233 }
233 234 }
234 235 static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
235 236 if (sizeof(intptr_t) >= sizeof(jlong)) {
236 237 *(jlong*) slot_addr = value;
237 238 } else {
238 239 Bytes::put_native_u8((address)slot_addr, value);
239 240 }
240 241 }
241 242 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
242 243 switch (type) {
243 244 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
244 245 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
245 246 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
246 247 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
247 248 case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
248 249 case T_LONG: value->j = long_in_slot(slot_addr); break;
249 250 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
250 251 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
251 252 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
252 253 default: ShouldNotReachHere();
253 254 }
254 255 }
255 256 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
256 257 switch (type) {
257 258 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
258 259 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
259 260 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
260 261 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
261 262 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
262 263 case T_LONG: set_long_in_slot(slot_addr, value->j); break;
263 264 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
264 265 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
265 266 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
266 267 default: ShouldNotReachHere();
267 268 }
268 269 }
269 270 };
270 271
271 272 //------------------------------------------------------------------------------------------------------------------------
272 273 // The interpreter generator.
273 274
274 275 class Template;
275 276 class AbstractInterpreterGenerator: public StackObj {
276 277 protected:
277 278 InterpreterMacroAssembler* _masm;
278 279
279 280 // shared code sequences
280 281 // Converter for native abi result to tosca result
281 282 address generate_result_handler_for(BasicType type);
282 283 address generate_slow_signature_handler();
283 284
284 285 // entry point generator
285 286 address generate_method_entry(AbstractInterpreter::MethodKind kind);
286 287
287 288 void bang_stack_shadow_pages(bool native_call);
288 289
289 290 void generate_all();
290 291
291 292 public:
292 293 AbstractInterpreterGenerator(StubQueue* _code);
293 294 };
294 295
295 296 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
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