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--- old/src/cpu/x86/vm/interpreter_x86_64.cpp
+++ new/src/cpu/x86/vm/interpreter_x86_64.cpp
1 1 /*
2 2 * Copyright (c) 2003, 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 #include "precompiled.hpp"
26 26 #include "asm/assembler.hpp"
27 27 #include "interpreter/bytecodeHistogram.hpp"
28 28 #include "interpreter/interpreter.hpp"
29 29 #include "interpreter/interpreterGenerator.hpp"
30 30 #include "interpreter/interpreterRuntime.hpp"
31 31 #include "interpreter/templateTable.hpp"
32 32 #include "oops/arrayOop.hpp"
33 33 #include "oops/methodDataOop.hpp"
34 34 #include "oops/methodOop.hpp"
35 35 #include "oops/oop.inline.hpp"
36 36 #include "prims/jvmtiExport.hpp"
37 37 #include "prims/jvmtiThreadState.hpp"
38 38 #include "prims/methodHandles.hpp"
39 39 #include "runtime/arguments.hpp"
40 40 #include "runtime/deoptimization.hpp"
41 41 #include "runtime/frame.inline.hpp"
42 42 #include "runtime/sharedRuntime.hpp"
43 43 #include "runtime/stubRoutines.hpp"
44 44 #include "runtime/synchronizer.hpp"
45 45 #include "runtime/timer.hpp"
46 46 #include "runtime/vframeArray.hpp"
47 47 #include "utilities/debug.hpp"
48 48 #ifdef COMPILER1
49 49 #include "c1/c1_Runtime1.hpp"
50 50 #endif
51 51
52 52 #define __ _masm->
53 53
54 54
55 55 #ifdef _WIN64
56 56 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
57 57 address entry = __ pc();
58 58
59 59 // rbx: method
60 60 // r14: pointer to locals
61 61 // c_rarg3: first stack arg - wordSize
62 62 __ mov(c_rarg3, rsp);
63 63 // adjust rsp
64 64 __ subptr(rsp, 4 * wordSize);
65 65 __ call_VM(noreg,
66 66 CAST_FROM_FN_PTR(address,
67 67 InterpreterRuntime::slow_signature_handler),
68 68 rbx, r14, c_rarg3);
69 69
70 70 // rax: result handler
71 71
72 72 // Stack layout:
73 73 // rsp: 3 integer or float args (if static first is unused)
74 74 // 1 float/double identifiers
75 75 // return address
76 76 // stack args
77 77 // garbage
78 78 // expression stack bottom
79 79 // bcp (NULL)
80 80 // ...
81 81
82 82 // Do FP first so we can use c_rarg3 as temp
83 83 __ movl(c_rarg3, Address(rsp, 3 * wordSize)); // float/double identifiers
84 84
85 85 for ( int i= 0; i < Argument::n_int_register_parameters_c-1; i++ ) {
86 86 XMMRegister floatreg = as_XMMRegister(i+1);
87 87 Label isfloatordouble, isdouble, next;
88 88
89 89 __ testl(c_rarg3, 1 << (i*2)); // Float or Double?
90 90 __ jcc(Assembler::notZero, isfloatordouble);
91 91
92 92 // Do Int register here
93 93 switch ( i ) {
94 94 case 0:
95 95 __ movl(rscratch1, Address(rbx, methodOopDesc::access_flags_offset()));
96 96 __ testl(rscratch1, JVM_ACC_STATIC);
97 97 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
98 98 break;
99 99 case 1:
100 100 __ movptr(c_rarg2, Address(rsp, wordSize));
101 101 break;
102 102 case 2:
103 103 __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
104 104 break;
105 105 default:
106 106 break;
107 107 }
108 108
109 109 __ jmp (next);
110 110
111 111 __ bind(isfloatordouble);
112 112 __ testl(c_rarg3, 1 << ((i*2)+1)); // Double?
113 113 __ jcc(Assembler::notZero, isdouble);
114 114
115 115 // Do Float Here
116 116 __ movflt(floatreg, Address(rsp, i * wordSize));
117 117 __ jmp(next);
118 118
119 119 // Do Double here
120 120 __ bind(isdouble);
121 121 __ movdbl(floatreg, Address(rsp, i * wordSize));
122 122
123 123 __ bind(next);
124 124 }
125 125
126 126
127 127 // restore rsp
128 128 __ addptr(rsp, 4 * wordSize);
129 129
130 130 __ ret(0);
131 131
132 132 return entry;
133 133 }
134 134 #else
135 135 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
136 136 address entry = __ pc();
137 137
138 138 // rbx: method
139 139 // r14: pointer to locals
140 140 // c_rarg3: first stack arg - wordSize
141 141 __ mov(c_rarg3, rsp);
142 142 // adjust rsp
143 143 __ subptr(rsp, 14 * wordSize);
144 144 __ call_VM(noreg,
145 145 CAST_FROM_FN_PTR(address,
146 146 InterpreterRuntime::slow_signature_handler),
147 147 rbx, r14, c_rarg3);
148 148
149 149 // rax: result handler
150 150
151 151 // Stack layout:
152 152 // rsp: 5 integer args (if static first is unused)
153 153 // 1 float/double identifiers
154 154 // 8 double args
155 155 // return address
156 156 // stack args
157 157 // garbage
158 158 // expression stack bottom
159 159 // bcp (NULL)
160 160 // ...
161 161
162 162 // Do FP first so we can use c_rarg3 as temp
163 163 __ movl(c_rarg3, Address(rsp, 5 * wordSize)); // float/double identifiers
164 164
165 165 for (int i = 0; i < Argument::n_float_register_parameters_c; i++) {
166 166 const XMMRegister r = as_XMMRegister(i);
167 167
168 168 Label d, done;
169 169
170 170 __ testl(c_rarg3, 1 << i);
171 171 __ jcc(Assembler::notZero, d);
172 172 __ movflt(r, Address(rsp, (6 + i) * wordSize));
173 173 __ jmp(done);
174 174 __ bind(d);
175 175 __ movdbl(r, Address(rsp, (6 + i) * wordSize));
176 176 __ bind(done);
177 177 }
178 178
179 179 // Now handle integrals. Only do c_rarg1 if not static.
180 180 __ movl(c_rarg3, Address(rbx, methodOopDesc::access_flags_offset()));
181 181 __ testl(c_rarg3, JVM_ACC_STATIC);
182 182 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
183 183
184 184 __ movptr(c_rarg2, Address(rsp, wordSize));
185 185 __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
186 186 __ movptr(c_rarg4, Address(rsp, 3 * wordSize));
187 187 __ movptr(c_rarg5, Address(rsp, 4 * wordSize));
188 188
189 189 // restore rsp
190 190 __ addptr(rsp, 14 * wordSize);
191 191
192 192 __ ret(0);
193 193
194 194 return entry;
195 195 }
196 196 #endif
197 197
198 198
199 199 //
200 200 // Various method entries
201 201 //
202 202
203 203 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
204 204
205 205 // rbx,: methodOop
206 206 // rcx: scratrch
207 207 // r13: sender sp
208 208
209 209 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry
210 210
211 211 address entry_point = __ pc();
212 212
213 213 // These don't need a safepoint check because they aren't virtually
214 214 // callable. We won't enter these intrinsics from compiled code.
215 215 // If in the future we added an intrinsic which was virtually callable
216 216 // we'd have to worry about how to safepoint so that this code is used.
217 217
218 218 // mathematical functions inlined by compiler
219 219 // (interpreter must provide identical implementation
220 220 // in order to avoid monotonicity bugs when switching
221 221 // from interpreter to compiler in the middle of some
222 222 // computation)
223 223 //
224 224 // stack: [ ret adr ] <-- rsp
225 225 // [ lo(arg) ]
226 226 // [ hi(arg) ]
227 227 //
228 228
229 229 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are
230 230 // native methods. Interpreter::method_kind(...) does a check for
231 231 // native methods first before checking for intrinsic methods and
232 232 // thus will never select this entry point. Make sure it is not
233 233 // called accidentally since the SharedRuntime entry points will
234 234 // not work for JDK 1.2.
235 235 //
236 236 // We no longer need to check for JDK 1.2 since it's EOL'ed.
237 237 // The following check existed in pre 1.6 implementation,
238 238 // if (Universe::is_jdk12x_version()) {
239 239 // __ should_not_reach_here();
240 240 // }
241 241 // Universe::is_jdk12x_version() always returns false since
242 242 // the JDK version is not yet determined when this method is called.
243 243 // This method is called during interpreter_init() whereas
244 244 // JDK version is only determined when universe2_init() is called.
245 245
246 246 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are
247 247 // java methods. Interpreter::method_kind(...) will select
248 248 // this entry point for the corresponding methods in JDK 1.3.
249 249 // get argument
250 250
251 251 if (kind == Interpreter::java_lang_math_sqrt) {
252 252 __ sqrtsd(xmm0, Address(rsp, wordSize));
253 253 } else {
254 254 __ fld_d(Address(rsp, wordSize));
255 255 switch (kind) {
256 256 case Interpreter::java_lang_math_sin :
257 257 __ trigfunc('s');
258 258 break;
259 259 case Interpreter::java_lang_math_cos :
260 260 __ trigfunc('c');
261 261 break;
262 262 case Interpreter::java_lang_math_tan :
263 263 __ trigfunc('t');
264 264 break;
265 265 case Interpreter::java_lang_math_abs:
266 266 __ fabs();
267 267 break;
268 268 case Interpreter::java_lang_math_log:
269 269 __ flog();
270 270 break;
271 271 case Interpreter::java_lang_math_log10:
272 272 __ flog10();
273 273 break;
274 274 default :
275 275 ShouldNotReachHere();
276 276 }
277 277
278 278 // return double result in xmm0 for interpreter and compilers.
279 279 __ subptr(rsp, 2*wordSize);
280 280 // Round to 64bit precision
281 281 __ fstp_d(Address(rsp, 0));
282 282 __ movdbl(xmm0, Address(rsp, 0));
283 283 __ addptr(rsp, 2*wordSize);
284 284 }
285 285
286 286
287 287 __ pop(rax);
288 288 __ mov(rsp, r13);
289 289 __ jmp(rax);
290 290
291 291 return entry_point;
292 292 }
293 293
294 294
295 295 // Abstract method entry
296 296 // Attempt to execute abstract method. Throw exception
297 297 address InterpreterGenerator::generate_abstract_entry(void) {
298 298 // rbx: methodOop
299 299 // r13: sender SP
300 300
301 301 address entry_point = __ pc();
302 302
303 303 // abstract method entry
304 304
305 305 // pop return address, reset last_sp to NULL
306 306 __ empty_expression_stack();
307 307 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed)
308 308 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed)
309 309
310 310 // throw exception
311 311 __ call_VM(noreg, CAST_FROM_FN_PTR(address,
312 312 InterpreterRuntime::throw_AbstractMethodError));
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313 313 // the call_VM checks for exception, so we should never return here.
314 314 __ should_not_reach_here();
315 315
316 316 return entry_point;
317 317 }
318 318
319 319
320 320 // Method handle invoker
321 321 // Dispatch a method of the form java.lang.invoke.MethodHandles::invoke(...)
322 322 address InterpreterGenerator::generate_method_handle_entry(void) {
323 - if (!EnableMethodHandles) {
323 + if (!EnableInvokeDynamic) {
324 324 return generate_abstract_entry();
325 325 }
326 326
327 327 address entry_point = MethodHandles::generate_method_handle_interpreter_entry(_masm);
328 328
329 329 return entry_point;
330 330 }
331 331
332 332
333 333 // Empty method, generate a very fast return.
334 334
335 335 address InterpreterGenerator::generate_empty_entry(void) {
336 336 // rbx: methodOop
337 337 // r13: sender sp must set sp to this value on return
338 338
339 339 if (!UseFastEmptyMethods) {
340 340 return NULL;
341 341 }
342 342
343 343 address entry_point = __ pc();
344 344
345 345 // If we need a safepoint check, generate full interpreter entry.
346 346 Label slow_path;
347 347 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
348 348 SafepointSynchronize::_not_synchronized);
349 349 __ jcc(Assembler::notEqual, slow_path);
350 350
351 351 // do nothing for empty methods (do not even increment invocation counter)
352 352 // Code: _return
353 353 // _return
354 354 // return w/o popping parameters
355 355 __ pop(rax);
356 356 __ mov(rsp, r13);
357 357 __ jmp(rax);
358 358
359 359 __ bind(slow_path);
360 360 (void) generate_normal_entry(false);
361 361 return entry_point;
362 362
363 363 }
364 364
365 365 // This method tells the deoptimizer how big an interpreted frame must be:
366 366 int AbstractInterpreter::size_activation(methodOop method,
367 367 int tempcount,
368 368 int popframe_extra_args,
369 369 int moncount,
370 370 int callee_param_count,
371 371 int callee_locals,
372 372 bool is_top_frame) {
373 373 return layout_activation(method,
374 374 tempcount, popframe_extra_args, moncount,
375 375 callee_param_count, callee_locals,
376 376 (frame*) NULL, (frame*) NULL, is_top_frame);
377 377 }
378 378
379 379 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) {
380 380
381 381 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in
382 382 // the days we had adapter frames. When we deoptimize a situation where a
383 383 // compiled caller calls a compiled caller will have registers it expects
384 384 // to survive the call to the callee. If we deoptimize the callee the only
385 385 // way we can restore these registers is to have the oldest interpreter
386 386 // frame that we create restore these values. That is what this routine
387 387 // will accomplish.
388 388
389 389 // At the moment we have modified c2 to not have any callee save registers
390 390 // so this problem does not exist and this routine is just a place holder.
391 391
392 392 assert(f->is_interpreted_frame(), "must be interpreted");
393 393 }
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