Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/stubGenerator_x86_64.cpp @ 10141:47766e2d2527
8013041: guarantee(this->is8bit(imm8)) failed: Short forward jump exceeds 8-bit offset.
Summary: Change jmpb() to jmp().
Reviewed-by: coleenp, rdurbin, dcubed
author | jiangli |
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date | Wed, 24 Apr 2013 18:20:04 -0400 |
parents | e961c11b85fe |
children | b9a918201d47 3f281b313240 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
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27 #include "asm/macroAssembler.inline.hpp" |
1972 | 28 #include "interpreter/interpreter.hpp" |
29 #include "nativeInst_x86.hpp" | |
30 #include "oops/instanceOop.hpp" | |
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31 #include "oops/method.hpp" |
1972 | 32 #include "oops/objArrayKlass.hpp" |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/methodHandles.hpp" | |
35 #include "runtime/frame.inline.hpp" | |
36 #include "runtime/handles.inline.hpp" | |
37 #include "runtime/sharedRuntime.hpp" | |
38 #include "runtime/stubCodeGenerator.hpp" | |
39 #include "runtime/stubRoutines.hpp" | |
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40 #include "runtime/thread.inline.hpp" |
1972 | 41 #include "utilities/top.hpp" |
42 #ifdef COMPILER2 | |
43 #include "opto/runtime.hpp" | |
44 #endif | |
0 | 45 |
46 // Declaration and definition of StubGenerator (no .hpp file). | |
47 // For a more detailed description of the stub routine structure | |
48 // see the comment in stubRoutines.hpp | |
49 | |
50 #define __ _masm-> | |
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51 #define TIMES_OOP (UseCompressedOops ? Address::times_4 : Address::times_8) |
304 | 52 #define a__ ((Assembler*)_masm)-> |
0 | 53 |
54 #ifdef PRODUCT | |
55 #define BLOCK_COMMENT(str) /* nothing */ | |
56 #else | |
57 #define BLOCK_COMMENT(str) __ block_comment(str) | |
58 #endif | |
59 | |
60 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") | |
61 const int MXCSR_MASK = 0xFFC0; // Mask out any pending exceptions | |
62 | |
63 // Stub Code definitions | |
64 | |
65 static address handle_unsafe_access() { | |
66 JavaThread* thread = JavaThread::current(); | |
67 address pc = thread->saved_exception_pc(); | |
68 // pc is the instruction which we must emulate | |
69 // doing a no-op is fine: return garbage from the load | |
70 // therefore, compute npc | |
71 address npc = Assembler::locate_next_instruction(pc); | |
72 | |
73 // request an async exception | |
74 thread->set_pending_unsafe_access_error(); | |
75 | |
76 // return address of next instruction to execute | |
77 return npc; | |
78 } | |
79 | |
80 class StubGenerator: public StubCodeGenerator { | |
81 private: | |
82 | |
83 #ifdef PRODUCT | |
84 #define inc_counter_np(counter) (0) | |
85 #else | |
86 void inc_counter_np_(int& counter) { | |
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87 // This can destroy rscratch1 if counter is far from the code cache |
0 | 88 __ incrementl(ExternalAddress((address)&counter)); |
89 } | |
90 #define inc_counter_np(counter) \ | |
91 BLOCK_COMMENT("inc_counter " #counter); \ | |
92 inc_counter_np_(counter); | |
93 #endif | |
94 | |
95 // Call stubs are used to call Java from C | |
96 // | |
97 // Linux Arguments: | |
98 // c_rarg0: call wrapper address address | |
99 // c_rarg1: result address | |
100 // c_rarg2: result type BasicType | |
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101 // c_rarg3: method Method* |
0 | 102 // c_rarg4: (interpreter) entry point address |
103 // c_rarg5: parameters intptr_t* | |
104 // 16(rbp): parameter size (in words) int | |
105 // 24(rbp): thread Thread* | |
106 // | |
107 // [ return_from_Java ] <--- rsp | |
108 // [ argument word n ] | |
109 // ... | |
110 // -12 [ argument word 1 ] | |
111 // -11 [ saved r15 ] <--- rsp_after_call | |
112 // -10 [ saved r14 ] | |
113 // -9 [ saved r13 ] | |
114 // -8 [ saved r12 ] | |
115 // -7 [ saved rbx ] | |
116 // -6 [ call wrapper ] | |
117 // -5 [ result ] | |
118 // -4 [ result type ] | |
119 // -3 [ method ] | |
120 // -2 [ entry point ] | |
121 // -1 [ parameters ] | |
122 // 0 [ saved rbp ] <--- rbp | |
123 // 1 [ return address ] | |
124 // 2 [ parameter size ] | |
125 // 3 [ thread ] | |
126 // | |
127 // Windows Arguments: | |
128 // c_rarg0: call wrapper address address | |
129 // c_rarg1: result address | |
130 // c_rarg2: result type BasicType | |
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131 // c_rarg3: method Method* |
0 | 132 // 48(rbp): (interpreter) entry point address |
133 // 56(rbp): parameters intptr_t* | |
134 // 64(rbp): parameter size (in words) int | |
135 // 72(rbp): thread Thread* | |
136 // | |
137 // [ return_from_Java ] <--- rsp | |
138 // [ argument word n ] | |
139 // ... | |
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140 // -28 [ argument word 1 ] |
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141 // -27 [ saved xmm15 ] <--- rsp_after_call |
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142 // [ saved xmm7-xmm14 ] |
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143 // -9 [ saved xmm6 ] (each xmm register takes 2 slots) |
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144 // -7 [ saved r15 ] |
0 | 145 // -6 [ saved r14 ] |
146 // -5 [ saved r13 ] | |
147 // -4 [ saved r12 ] | |
148 // -3 [ saved rdi ] | |
149 // -2 [ saved rsi ] | |
150 // -1 [ saved rbx ] | |
151 // 0 [ saved rbp ] <--- rbp | |
152 // 1 [ return address ] | |
153 // 2 [ call wrapper ] | |
154 // 3 [ result ] | |
155 // 4 [ result type ] | |
156 // 5 [ method ] | |
157 // 6 [ entry point ] | |
158 // 7 [ parameters ] | |
159 // 8 [ parameter size ] | |
160 // 9 [ thread ] | |
161 // | |
162 // Windows reserves the callers stack space for arguments 1-4. | |
163 // We spill c_rarg0-c_rarg3 to this space. | |
164 | |
165 // Call stub stack layout word offsets from rbp | |
166 enum call_stub_layout { | |
167 #ifdef _WIN64 | |
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168 xmm_save_first = 6, // save from xmm6 |
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169 xmm_save_last = 15, // to xmm15 |
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170 xmm_save_base = -9, |
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171 rsp_after_call_off = xmm_save_base - 2 * (xmm_save_last - xmm_save_first), // -27 |
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172 r15_off = -7, |
0 | 173 r14_off = -6, |
174 r13_off = -5, | |
175 r12_off = -4, | |
176 rdi_off = -3, | |
177 rsi_off = -2, | |
178 rbx_off = -1, | |
179 rbp_off = 0, | |
180 retaddr_off = 1, | |
181 call_wrapper_off = 2, | |
182 result_off = 3, | |
183 result_type_off = 4, | |
184 method_off = 5, | |
185 entry_point_off = 6, | |
186 parameters_off = 7, | |
187 parameter_size_off = 8, | |
188 thread_off = 9 | |
189 #else | |
190 rsp_after_call_off = -12, | |
191 mxcsr_off = rsp_after_call_off, | |
192 r15_off = -11, | |
193 r14_off = -10, | |
194 r13_off = -9, | |
195 r12_off = -8, | |
196 rbx_off = -7, | |
197 call_wrapper_off = -6, | |
198 result_off = -5, | |
199 result_type_off = -4, | |
200 method_off = -3, | |
201 entry_point_off = -2, | |
202 parameters_off = -1, | |
203 rbp_off = 0, | |
204 retaddr_off = 1, | |
205 parameter_size_off = 2, | |
206 thread_off = 3 | |
207 #endif | |
208 }; | |
209 | |
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210 #ifdef _WIN64 |
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211 Address xmm_save(int reg) { |
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212 assert(reg >= xmm_save_first && reg <= xmm_save_last, "XMM register number out of range"); |
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213 return Address(rbp, (xmm_save_base - (reg - xmm_save_first) * 2) * wordSize); |
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214 } |
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215 #endif |
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216 |
0 | 217 address generate_call_stub(address& return_address) { |
218 assert((int)frame::entry_frame_after_call_words == -(int)rsp_after_call_off + 1 && | |
219 (int)frame::entry_frame_call_wrapper_offset == (int)call_wrapper_off, | |
220 "adjust this code"); | |
221 StubCodeMark mark(this, "StubRoutines", "call_stub"); | |
222 address start = __ pc(); | |
223 | |
224 // same as in generate_catch_exception()! | |
225 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
226 | |
227 const Address call_wrapper (rbp, call_wrapper_off * wordSize); | |
228 const Address result (rbp, result_off * wordSize); | |
229 const Address result_type (rbp, result_type_off * wordSize); | |
230 const Address method (rbp, method_off * wordSize); | |
231 const Address entry_point (rbp, entry_point_off * wordSize); | |
232 const Address parameters (rbp, parameters_off * wordSize); | |
233 const Address parameter_size(rbp, parameter_size_off * wordSize); | |
234 | |
235 // same as in generate_catch_exception()! | |
236 const Address thread (rbp, thread_off * wordSize); | |
237 | |
238 const Address r15_save(rbp, r15_off * wordSize); | |
239 const Address r14_save(rbp, r14_off * wordSize); | |
240 const Address r13_save(rbp, r13_off * wordSize); | |
241 const Address r12_save(rbp, r12_off * wordSize); | |
242 const Address rbx_save(rbp, rbx_off * wordSize); | |
243 | |
244 // stub code | |
245 __ enter(); | |
304 | 246 __ subptr(rsp, -rsp_after_call_off * wordSize); |
0 | 247 |
248 // save register parameters | |
249 #ifndef _WIN64 | |
304 | 250 __ movptr(parameters, c_rarg5); // parameters |
251 __ movptr(entry_point, c_rarg4); // entry_point | |
0 | 252 #endif |
253 | |
304 | 254 __ movptr(method, c_rarg3); // method |
255 __ movl(result_type, c_rarg2); // result type | |
256 __ movptr(result, c_rarg1); // result | |
257 __ movptr(call_wrapper, c_rarg0); // call wrapper | |
0 | 258 |
259 // save regs belonging to calling function | |
304 | 260 __ movptr(rbx_save, rbx); |
261 __ movptr(r12_save, r12); | |
262 __ movptr(r13_save, r13); | |
263 __ movptr(r14_save, r14); | |
264 __ movptr(r15_save, r15); | |
0 | 265 #ifdef _WIN64 |
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266 for (int i = 6; i <= 15; i++) { |
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267 __ movdqu(xmm_save(i), as_XMMRegister(i)); |
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268 } |
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269 |
0 | 270 const Address rdi_save(rbp, rdi_off * wordSize); |
271 const Address rsi_save(rbp, rsi_off * wordSize); | |
272 | |
304 | 273 __ movptr(rsi_save, rsi); |
274 __ movptr(rdi_save, rdi); | |
0 | 275 #else |
276 const Address mxcsr_save(rbp, mxcsr_off * wordSize); | |
277 { | |
278 Label skip_ldmx; | |
279 __ stmxcsr(mxcsr_save); | |
280 __ movl(rax, mxcsr_save); | |
281 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
304 | 282 ExternalAddress mxcsr_std(StubRoutines::x86::mxcsr_std()); |
0 | 283 __ cmp32(rax, mxcsr_std); |
284 __ jcc(Assembler::equal, skip_ldmx); | |
285 __ ldmxcsr(mxcsr_std); | |
286 __ bind(skip_ldmx); | |
287 } | |
288 #endif | |
289 | |
290 // Load up thread register | |
304 | 291 __ movptr(r15_thread, thread); |
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292 __ reinit_heapbase(); |
0 | 293 |
294 #ifdef ASSERT | |
295 // make sure we have no pending exceptions | |
296 { | |
297 Label L; | |
304 | 298 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 299 __ jcc(Assembler::equal, L); |
300 __ stop("StubRoutines::call_stub: entered with pending exception"); | |
301 __ bind(L); | |
302 } | |
303 #endif | |
304 | |
305 // pass parameters if any | |
306 BLOCK_COMMENT("pass parameters if any"); | |
307 Label parameters_done; | |
308 __ movl(c_rarg3, parameter_size); | |
309 __ testl(c_rarg3, c_rarg3); | |
310 __ jcc(Assembler::zero, parameters_done); | |
311 | |
312 Label loop; | |
304 | 313 __ movptr(c_rarg2, parameters); // parameter pointer |
314 __ movl(c_rarg1, c_rarg3); // parameter counter is in c_rarg1 | |
0 | 315 __ BIND(loop); |
304 | 316 __ movptr(rax, Address(c_rarg2, 0));// get parameter |
317 __ addptr(c_rarg2, wordSize); // advance to next parameter | |
318 __ decrementl(c_rarg1); // decrement counter | |
319 __ push(rax); // pass parameter | |
0 | 320 __ jcc(Assembler::notZero, loop); |
321 | |
322 // call Java function | |
323 __ BIND(parameters_done); | |
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324 __ movptr(rbx, method); // get Method* |
304 | 325 __ movptr(c_rarg1, entry_point); // get entry_point |
326 __ mov(r13, rsp); // set sender sp | |
0 | 327 BLOCK_COMMENT("call Java function"); |
328 __ call(c_rarg1); | |
329 | |
330 BLOCK_COMMENT("call_stub_return_address:"); | |
331 return_address = __ pc(); | |
332 | |
333 // store result depending on type (everything that is not | |
334 // T_OBJECT, T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT) | |
304 | 335 __ movptr(c_rarg0, result); |
0 | 336 Label is_long, is_float, is_double, exit; |
337 __ movl(c_rarg1, result_type); | |
338 __ cmpl(c_rarg1, T_OBJECT); | |
339 __ jcc(Assembler::equal, is_long); | |
340 __ cmpl(c_rarg1, T_LONG); | |
341 __ jcc(Assembler::equal, is_long); | |
342 __ cmpl(c_rarg1, T_FLOAT); | |
343 __ jcc(Assembler::equal, is_float); | |
344 __ cmpl(c_rarg1, T_DOUBLE); | |
345 __ jcc(Assembler::equal, is_double); | |
346 | |
347 // handle T_INT case | |
348 __ movl(Address(c_rarg0, 0), rax); | |
349 | |
350 __ BIND(exit); | |
351 | |
352 // pop parameters | |
304 | 353 __ lea(rsp, rsp_after_call); |
0 | 354 |
355 #ifdef ASSERT | |
356 // verify that threads correspond | |
357 { | |
358 Label L, S; | |
304 | 359 __ cmpptr(r15_thread, thread); |
0 | 360 __ jcc(Assembler::notEqual, S); |
361 __ get_thread(rbx); | |
304 | 362 __ cmpptr(r15_thread, rbx); |
0 | 363 __ jcc(Assembler::equal, L); |
364 __ bind(S); | |
365 __ jcc(Assembler::equal, L); | |
366 __ stop("StubRoutines::call_stub: threads must correspond"); | |
367 __ bind(L); | |
368 } | |
369 #endif | |
370 | |
371 // restore regs belonging to calling function | |
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372 #ifdef _WIN64 |
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373 for (int i = 15; i >= 6; i--) { |
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374 __ movdqu(as_XMMRegister(i), xmm_save(i)); |
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375 } |
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376 #endif |
304 | 377 __ movptr(r15, r15_save); |
378 __ movptr(r14, r14_save); | |
379 __ movptr(r13, r13_save); | |
380 __ movptr(r12, r12_save); | |
381 __ movptr(rbx, rbx_save); | |
0 | 382 |
383 #ifdef _WIN64 | |
304 | 384 __ movptr(rdi, rdi_save); |
385 __ movptr(rsi, rsi_save); | |
0 | 386 #else |
387 __ ldmxcsr(mxcsr_save); | |
388 #endif | |
389 | |
390 // restore rsp | |
304 | 391 __ addptr(rsp, -rsp_after_call_off * wordSize); |
0 | 392 |
393 // return | |
304 | 394 __ pop(rbp); |
0 | 395 __ ret(0); |
396 | |
397 // handle return types different from T_INT | |
398 __ BIND(is_long); | |
399 __ movq(Address(c_rarg0, 0), rax); | |
400 __ jmp(exit); | |
401 | |
402 __ BIND(is_float); | |
403 __ movflt(Address(c_rarg0, 0), xmm0); | |
404 __ jmp(exit); | |
405 | |
406 __ BIND(is_double); | |
407 __ movdbl(Address(c_rarg0, 0), xmm0); | |
408 __ jmp(exit); | |
409 | |
410 return start; | |
411 } | |
412 | |
413 // Return point for a Java call if there's an exception thrown in | |
414 // Java code. The exception is caught and transformed into a | |
415 // pending exception stored in JavaThread that can be tested from | |
416 // within the VM. | |
417 // | |
418 // Note: Usually the parameters are removed by the callee. In case | |
419 // of an exception crossing an activation frame boundary, that is | |
420 // not the case if the callee is compiled code => need to setup the | |
421 // rsp. | |
422 // | |
423 // rax: exception oop | |
424 | |
425 address generate_catch_exception() { | |
426 StubCodeMark mark(this, "StubRoutines", "catch_exception"); | |
427 address start = __ pc(); | |
428 | |
429 // same as in generate_call_stub(): | |
430 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
431 const Address thread (rbp, thread_off * wordSize); | |
432 | |
433 #ifdef ASSERT | |
434 // verify that threads correspond | |
435 { | |
436 Label L, S; | |
304 | 437 __ cmpptr(r15_thread, thread); |
0 | 438 __ jcc(Assembler::notEqual, S); |
439 __ get_thread(rbx); | |
304 | 440 __ cmpptr(r15_thread, rbx); |
0 | 441 __ jcc(Assembler::equal, L); |
442 __ bind(S); | |
443 __ stop("StubRoutines::catch_exception: threads must correspond"); | |
444 __ bind(L); | |
445 } | |
446 #endif | |
447 | |
448 // set pending exception | |
449 __ verify_oop(rax); | |
450 | |
304 | 451 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), rax); |
0 | 452 __ lea(rscratch1, ExternalAddress((address)__FILE__)); |
304 | 453 __ movptr(Address(r15_thread, Thread::exception_file_offset()), rscratch1); |
0 | 454 __ movl(Address(r15_thread, Thread::exception_line_offset()), (int) __LINE__); |
455 | |
456 // complete return to VM | |
457 assert(StubRoutines::_call_stub_return_address != NULL, | |
458 "_call_stub_return_address must have been generated before"); | |
459 __ jump(RuntimeAddress(StubRoutines::_call_stub_return_address)); | |
460 | |
461 return start; | |
462 } | |
463 | |
464 // Continuation point for runtime calls returning with a pending | |
465 // exception. The pending exception check happened in the runtime | |
466 // or native call stub. The pending exception in Thread is | |
467 // converted into a Java-level exception. | |
468 // | |
469 // Contract with Java-level exception handlers: | |
470 // rax: exception | |
471 // rdx: throwing pc | |
472 // | |
473 // NOTE: At entry of this stub, exception-pc must be on stack !! | |
474 | |
475 address generate_forward_exception() { | |
476 StubCodeMark mark(this, "StubRoutines", "forward exception"); | |
477 address start = __ pc(); | |
478 | |
479 // Upon entry, the sp points to the return address returning into | |
480 // Java (interpreted or compiled) code; i.e., the return address | |
481 // becomes the throwing pc. | |
482 // | |
483 // Arguments pushed before the runtime call are still on the stack | |
484 // but the exception handler will reset the stack pointer -> | |
485 // ignore them. A potential result in registers can be ignored as | |
486 // well. | |
487 | |
488 #ifdef ASSERT | |
489 // make sure this code is only executed if there is a pending exception | |
490 { | |
491 Label L; | |
304 | 492 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL); |
0 | 493 __ jcc(Assembler::notEqual, L); |
494 __ stop("StubRoutines::forward exception: no pending exception (1)"); | |
495 __ bind(L); | |
496 } | |
497 #endif | |
498 | |
499 // compute exception handler into rbx | |
304 | 500 __ movptr(c_rarg0, Address(rsp, 0)); |
0 | 501 BLOCK_COMMENT("call exception_handler_for_return_address"); |
502 __ call_VM_leaf(CAST_FROM_FN_PTR(address, | |
503 SharedRuntime::exception_handler_for_return_address), | |
1295 | 504 r15_thread, c_rarg0); |
304 | 505 __ mov(rbx, rax); |
0 | 506 |
507 // setup rax & rdx, remove return address & clear pending exception | |
304 | 508 __ pop(rdx); |
509 __ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); | |
512
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510 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 511 |
512 #ifdef ASSERT | |
513 // make sure exception is set | |
514 { | |
515 Label L; | |
304 | 516 __ testptr(rax, rax); |
0 | 517 __ jcc(Assembler::notEqual, L); |
518 __ stop("StubRoutines::forward exception: no pending exception (2)"); | |
519 __ bind(L); | |
520 } | |
521 #endif | |
522 | |
523 // continue at exception handler (return address removed) | |
524 // rax: exception | |
525 // rbx: exception handler | |
526 // rdx: throwing pc | |
527 __ verify_oop(rax); | |
528 __ jmp(rbx); | |
529 | |
530 return start; | |
531 } | |
532 | |
533 // Support for jint atomic::xchg(jint exchange_value, volatile jint* dest) | |
534 // | |
535 // Arguments : | |
536 // c_rarg0: exchange_value | |
537 // c_rarg0: dest | |
538 // | |
539 // Result: | |
540 // *dest <- ex, return (orig *dest) | |
541 address generate_atomic_xchg() { | |
542 StubCodeMark mark(this, "StubRoutines", "atomic_xchg"); | |
543 address start = __ pc(); | |
544 | |
545 __ movl(rax, c_rarg0); // Copy to eax we need a return value anyhow | |
546 __ xchgl(rax, Address(c_rarg1, 0)); // automatic LOCK | |
547 __ ret(0); | |
548 | |
549 return start; | |
550 } | |
551 | |
552 // Support for intptr_t atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) | |
553 // | |
554 // Arguments : | |
555 // c_rarg0: exchange_value | |
556 // c_rarg1: dest | |
557 // | |
558 // Result: | |
559 // *dest <- ex, return (orig *dest) | |
560 address generate_atomic_xchg_ptr() { | |
561 StubCodeMark mark(this, "StubRoutines", "atomic_xchg_ptr"); | |
562 address start = __ pc(); | |
563 | |
304 | 564 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
565 __ xchgptr(rax, Address(c_rarg1, 0)); // automatic LOCK | |
0 | 566 __ ret(0); |
567 | |
568 return start; | |
569 } | |
570 | |
571 // Support for jint atomic::atomic_cmpxchg(jint exchange_value, volatile jint* dest, | |
572 // jint compare_value) | |
573 // | |
574 // Arguments : | |
575 // c_rarg0: exchange_value | |
576 // c_rarg1: dest | |
577 // c_rarg2: compare_value | |
578 // | |
579 // Result: | |
580 // if ( compare_value == *dest ) { | |
581 // *dest = exchange_value | |
582 // return compare_value; | |
583 // else | |
584 // return *dest; | |
585 address generate_atomic_cmpxchg() { | |
586 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg"); | |
587 address start = __ pc(); | |
588 | |
589 __ movl(rax, c_rarg2); | |
590 if ( os::is_MP() ) __ lock(); | |
591 __ cmpxchgl(c_rarg0, Address(c_rarg1, 0)); | |
592 __ ret(0); | |
593 | |
594 return start; | |
595 } | |
596 | |
597 // Support for jint atomic::atomic_cmpxchg_long(jlong exchange_value, | |
598 // volatile jlong* dest, | |
599 // jlong compare_value) | |
600 // Arguments : | |
601 // c_rarg0: exchange_value | |
602 // c_rarg1: dest | |
603 // c_rarg2: compare_value | |
604 // | |
605 // Result: | |
606 // if ( compare_value == *dest ) { | |
607 // *dest = exchange_value | |
608 // return compare_value; | |
609 // else | |
610 // return *dest; | |
611 address generate_atomic_cmpxchg_long() { | |
612 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long"); | |
613 address start = __ pc(); | |
614 | |
615 __ movq(rax, c_rarg2); | |
616 if ( os::is_MP() ) __ lock(); | |
617 __ cmpxchgq(c_rarg0, Address(c_rarg1, 0)); | |
618 __ ret(0); | |
619 | |
620 return start; | |
621 } | |
622 | |
623 // Support for jint atomic::add(jint add_value, volatile jint* dest) | |
624 // | |
625 // Arguments : | |
626 // c_rarg0: add_value | |
627 // c_rarg1: dest | |
628 // | |
629 // Result: | |
630 // *dest += add_value | |
631 // return *dest; | |
632 address generate_atomic_add() { | |
633 StubCodeMark mark(this, "StubRoutines", "atomic_add"); | |
634 address start = __ pc(); | |
635 | |
636 __ movl(rax, c_rarg0); | |
637 if ( os::is_MP() ) __ lock(); | |
638 __ xaddl(Address(c_rarg1, 0), c_rarg0); | |
639 __ addl(rax, c_rarg0); | |
640 __ ret(0); | |
641 | |
642 return start; | |
643 } | |
644 | |
645 // Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) | |
646 // | |
647 // Arguments : | |
648 // c_rarg0: add_value | |
649 // c_rarg1: dest | |
650 // | |
651 // Result: | |
652 // *dest += add_value | |
653 // return *dest; | |
654 address generate_atomic_add_ptr() { | |
655 StubCodeMark mark(this, "StubRoutines", "atomic_add_ptr"); | |
656 address start = __ pc(); | |
657 | |
304 | 658 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
0 | 659 if ( os::is_MP() ) __ lock(); |
304 | 660 __ xaddptr(Address(c_rarg1, 0), c_rarg0); |
661 __ addptr(rax, c_rarg0); | |
0 | 662 __ ret(0); |
663 | |
664 return start; | |
665 } | |
666 | |
667 // Support for intptr_t OrderAccess::fence() | |
668 // | |
669 // Arguments : | |
670 // | |
671 // Result: | |
672 address generate_orderaccess_fence() { | |
673 StubCodeMark mark(this, "StubRoutines", "orderaccess_fence"); | |
674 address start = __ pc(); | |
671
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675 __ membar(Assembler::StoreLoad); |
0 | 676 __ ret(0); |
677 | |
678 return start; | |
679 } | |
680 | |
681 // Support for intptr_t get_previous_fp() | |
682 // | |
683 // This routine is used to find the previous frame pointer for the | |
684 // caller (current_frame_guess). This is used as part of debugging | |
685 // ps() is seemingly lost trying to find frames. | |
686 // This code assumes that caller current_frame_guess) has a frame. | |
687 address generate_get_previous_fp() { | |
688 StubCodeMark mark(this, "StubRoutines", "get_previous_fp"); | |
689 const Address old_fp(rbp, 0); | |
690 const Address older_fp(rax, 0); | |
691 address start = __ pc(); | |
692 | |
693 __ enter(); | |
304 | 694 __ movptr(rax, old_fp); // callers fp |
695 __ movptr(rax, older_fp); // the frame for ps() | |
696 __ pop(rbp); | |
0 | 697 __ ret(0); |
698 | |
699 return start; | |
700 } | |
701 | |
5903
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702 // Support for intptr_t get_previous_sp() |
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703 // |
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704 // This routine is used to find the previous stack pointer for the |
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705 // caller. |
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706 address generate_get_previous_sp() { |
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707 StubCodeMark mark(this, "StubRoutines", "get_previous_sp"); |
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708 address start = __ pc(); |
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709 |
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710 __ movptr(rax, rsp); |
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711 __ addptr(rax, 8); // return address is at the top of the stack. |
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712 __ ret(0); |
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713 |
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714 return start; |
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715 } |
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716 |
0 | 717 //---------------------------------------------------------------------------------------------------- |
718 // Support for void verify_mxcsr() | |
719 // | |
720 // This routine is used with -Xcheck:jni to verify that native | |
721 // JNI code does not return to Java code without restoring the | |
722 // MXCSR register to our expected state. | |
723 | |
724 address generate_verify_mxcsr() { | |
725 StubCodeMark mark(this, "StubRoutines", "verify_mxcsr"); | |
726 address start = __ pc(); | |
727 | |
728 const Address mxcsr_save(rsp, 0); | |
729 | |
730 if (CheckJNICalls) { | |
731 Label ok_ret; | |
304 | 732 __ push(rax); |
733 __ subptr(rsp, wordSize); // allocate a temp location | |
0 | 734 __ stmxcsr(mxcsr_save); |
735 __ movl(rax, mxcsr_save); | |
736 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
304 | 737 __ cmpl(rax, *(int *)(StubRoutines::x86::mxcsr_std())); |
0 | 738 __ jcc(Assembler::equal, ok_ret); |
739 | |
740 __ warn("MXCSR changed by native JNI code, use -XX:+RestoreMXCSROnJNICall"); | |
741 | |
304 | 742 __ ldmxcsr(ExternalAddress(StubRoutines::x86::mxcsr_std())); |
0 | 743 |
744 __ bind(ok_ret); | |
304 | 745 __ addptr(rsp, wordSize); |
746 __ pop(rax); | |
0 | 747 } |
748 | |
749 __ ret(0); | |
750 | |
751 return start; | |
752 } | |
753 | |
754 address generate_f2i_fixup() { | |
755 StubCodeMark mark(this, "StubRoutines", "f2i_fixup"); | |
756 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
757 | |
758 address start = __ pc(); | |
759 | |
760 Label L; | |
761 | |
304 | 762 __ push(rax); |
763 __ push(c_rarg3); | |
764 __ push(c_rarg2); | |
765 __ push(c_rarg1); | |
0 | 766 |
767 __ movl(rax, 0x7f800000); | |
768 __ xorl(c_rarg3, c_rarg3); | |
769 __ movl(c_rarg2, inout); | |
770 __ movl(c_rarg1, c_rarg2); | |
771 __ andl(c_rarg1, 0x7fffffff); | |
772 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
773 __ jcc(Assembler::negative, L); | |
774 __ testl(c_rarg2, c_rarg2); // signed ? min_jint : max_jint | |
775 __ movl(c_rarg3, 0x80000000); | |
776 __ movl(rax, 0x7fffffff); | |
777 __ cmovl(Assembler::positive, c_rarg3, rax); | |
778 | |
779 __ bind(L); | |
304 | 780 __ movptr(inout, c_rarg3); |
781 | |
782 __ pop(c_rarg1); | |
783 __ pop(c_rarg2); | |
784 __ pop(c_rarg3); | |
785 __ pop(rax); | |
0 | 786 |
787 __ ret(0); | |
788 | |
789 return start; | |
790 } | |
791 | |
792 address generate_f2l_fixup() { | |
793 StubCodeMark mark(this, "StubRoutines", "f2l_fixup"); | |
794 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
795 address start = __ pc(); | |
796 | |
797 Label L; | |
798 | |
304 | 799 __ push(rax); |
800 __ push(c_rarg3); | |
801 __ push(c_rarg2); | |
802 __ push(c_rarg1); | |
0 | 803 |
804 __ movl(rax, 0x7f800000); | |
805 __ xorl(c_rarg3, c_rarg3); | |
806 __ movl(c_rarg2, inout); | |
807 __ movl(c_rarg1, c_rarg2); | |
808 __ andl(c_rarg1, 0x7fffffff); | |
809 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
810 __ jcc(Assembler::negative, L); | |
811 __ testl(c_rarg2, c_rarg2); // signed ? min_jlong : max_jlong | |
812 __ mov64(c_rarg3, 0x8000000000000000); | |
813 __ mov64(rax, 0x7fffffffffffffff); | |
304 | 814 __ cmov(Assembler::positive, c_rarg3, rax); |
0 | 815 |
816 __ bind(L); | |
304 | 817 __ movptr(inout, c_rarg3); |
818 | |
819 __ pop(c_rarg1); | |
820 __ pop(c_rarg2); | |
821 __ pop(c_rarg3); | |
822 __ pop(rax); | |
0 | 823 |
824 __ ret(0); | |
825 | |
826 return start; | |
827 } | |
828 | |
829 address generate_d2i_fixup() { | |
830 StubCodeMark mark(this, "StubRoutines", "d2i_fixup"); | |
831 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
832 | |
833 address start = __ pc(); | |
834 | |
835 Label L; | |
836 | |
304 | 837 __ push(rax); |
838 __ push(c_rarg3); | |
839 __ push(c_rarg2); | |
840 __ push(c_rarg1); | |
841 __ push(c_rarg0); | |
0 | 842 |
843 __ movl(rax, 0x7ff00000); | |
844 __ movq(c_rarg2, inout); | |
845 __ movl(c_rarg3, c_rarg2); | |
304 | 846 __ mov(c_rarg1, c_rarg2); |
847 __ mov(c_rarg0, c_rarg2); | |
0 | 848 __ negl(c_rarg3); |
304 | 849 __ shrptr(c_rarg1, 0x20); |
0 | 850 __ orl(c_rarg3, c_rarg2); |
851 __ andl(c_rarg1, 0x7fffffff); | |
852 __ xorl(c_rarg2, c_rarg2); | |
853 __ shrl(c_rarg3, 0x1f); | |
854 __ orl(c_rarg1, c_rarg3); | |
855 __ cmpl(rax, c_rarg1); | |
856 __ jcc(Assembler::negative, L); // NaN -> 0 | |
304 | 857 __ testptr(c_rarg0, c_rarg0); // signed ? min_jint : max_jint |
0 | 858 __ movl(c_rarg2, 0x80000000); |
859 __ movl(rax, 0x7fffffff); | |
304 | 860 __ cmov(Assembler::positive, c_rarg2, rax); |
0 | 861 |
862 __ bind(L); | |
304 | 863 __ movptr(inout, c_rarg2); |
864 | |
865 __ pop(c_rarg0); | |
866 __ pop(c_rarg1); | |
867 __ pop(c_rarg2); | |
868 __ pop(c_rarg3); | |
869 __ pop(rax); | |
0 | 870 |
871 __ ret(0); | |
872 | |
873 return start; | |
874 } | |
875 | |
876 address generate_d2l_fixup() { | |
877 StubCodeMark mark(this, "StubRoutines", "d2l_fixup"); | |
878 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
879 | |
880 address start = __ pc(); | |
881 | |
882 Label L; | |
883 | |
304 | 884 __ push(rax); |
885 __ push(c_rarg3); | |
886 __ push(c_rarg2); | |
887 __ push(c_rarg1); | |
888 __ push(c_rarg0); | |
0 | 889 |
890 __ movl(rax, 0x7ff00000); | |
891 __ movq(c_rarg2, inout); | |
892 __ movl(c_rarg3, c_rarg2); | |
304 | 893 __ mov(c_rarg1, c_rarg2); |
894 __ mov(c_rarg0, c_rarg2); | |
0 | 895 __ negl(c_rarg3); |
304 | 896 __ shrptr(c_rarg1, 0x20); |
0 | 897 __ orl(c_rarg3, c_rarg2); |
898 __ andl(c_rarg1, 0x7fffffff); | |
899 __ xorl(c_rarg2, c_rarg2); | |
900 __ shrl(c_rarg3, 0x1f); | |
901 __ orl(c_rarg1, c_rarg3); | |
902 __ cmpl(rax, c_rarg1); | |
903 __ jcc(Assembler::negative, L); // NaN -> 0 | |
904 __ testq(c_rarg0, c_rarg0); // signed ? min_jlong : max_jlong | |
905 __ mov64(c_rarg2, 0x8000000000000000); | |
906 __ mov64(rax, 0x7fffffffffffffff); | |
907 __ cmovq(Assembler::positive, c_rarg2, rax); | |
908 | |
909 __ bind(L); | |
910 __ movq(inout, c_rarg2); | |
911 | |
304 | 912 __ pop(c_rarg0); |
913 __ pop(c_rarg1); | |
914 __ pop(c_rarg2); | |
915 __ pop(c_rarg3); | |
916 __ pop(rax); | |
0 | 917 |
918 __ ret(0); | |
919 | |
920 return start; | |
921 } | |
922 | |
923 address generate_fp_mask(const char *stub_name, int64_t mask) { | |
1365 | 924 __ align(CodeEntryAlignment); |
0 | 925 StubCodeMark mark(this, "StubRoutines", stub_name); |
926 address start = __ pc(); | |
927 | |
928 __ emit_data64( mask, relocInfo::none ); | |
929 __ emit_data64( mask, relocInfo::none ); | |
930 | |
931 return start; | |
932 } | |
933 | |
934 // The following routine generates a subroutine to throw an | |
935 // asynchronous UnknownError when an unsafe access gets a fault that | |
936 // could not be reasonably prevented by the programmer. (Example: | |
937 // SIGBUS/OBJERR.) | |
938 address generate_handler_for_unsafe_access() { | |
939 StubCodeMark mark(this, "StubRoutines", "handler_for_unsafe_access"); | |
940 address start = __ pc(); | |
941 | |
304 | 942 __ push(0); // hole for return address-to-be |
943 __ pusha(); // push registers | |
0 | 944 Address next_pc(rsp, RegisterImpl::number_of_registers * BytesPerWord); |
945 | |
3937 | 946 // FIXME: this probably needs alignment logic |
947 | |
304 | 948 __ subptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 949 BLOCK_COMMENT("call handle_unsafe_access"); |
950 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, handle_unsafe_access))); | |
304 | 951 __ addptr(rsp, frame::arg_reg_save_area_bytes); |
952 | |
953 __ movptr(next_pc, rax); // stuff next address | |
954 __ popa(); | |
0 | 955 __ ret(0); // jump to next address |
956 | |
957 return start; | |
958 } | |
959 | |
960 // Non-destructive plausibility checks for oops | |
961 // | |
962 // Arguments: | |
963 // all args on stack! | |
964 // | |
965 // Stack after saving c_rarg3: | |
966 // [tos + 0]: saved c_rarg3 | |
967 // [tos + 1]: saved c_rarg2 | |
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968 // [tos + 2]: saved r12 (several TemplateTable methods use it) |
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969 // [tos + 3]: saved flags |
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970 // [tos + 4]: return address |
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971 // * [tos + 5]: error message (char*) |
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972 // * [tos + 6]: object to verify (oop) |
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973 // * [tos + 7]: saved rax - saved by caller and bashed |
1583 | 974 // * [tos + 8]: saved r10 (rscratch1) - saved by caller |
0 | 975 // * = popped on exit |
976 address generate_verify_oop() { | |
977 StubCodeMark mark(this, "StubRoutines", "verify_oop"); | |
978 address start = __ pc(); | |
979 | |
980 Label exit, error; | |
981 | |
304 | 982 __ pushf(); |
0 | 983 __ incrementl(ExternalAddress((address) StubRoutines::verify_oop_count_addr())); |
984 | |
304 | 985 __ push(r12); |
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986 |
0 | 987 // save c_rarg2 and c_rarg3 |
304 | 988 __ push(c_rarg2); |
989 __ push(c_rarg3); | |
0 | 990 |
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991 enum { |
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992 // After previous pushes. |
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993 oop_to_verify = 6 * wordSize, |
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994 saved_rax = 7 * wordSize, |
1583 | 995 saved_r10 = 8 * wordSize, |
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996 |
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997 // Before the call to MacroAssembler::debug(), see below. |
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998 return_addr = 16 * wordSize, |
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999 error_msg = 17 * wordSize |
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1000 }; |
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1001 |
0 | 1002 // get object |
304 | 1003 __ movptr(rax, Address(rsp, oop_to_verify)); |
0 | 1004 |
1005 // make sure object is 'reasonable' | |
304 | 1006 __ testptr(rax, rax); |
0 | 1007 __ jcc(Assembler::zero, exit); // if obj is NULL it is OK |
1008 // Check if the oop is in the right area of memory | |
304 | 1009 __ movptr(c_rarg2, rax); |
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1010 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_mask()); |
304 | 1011 __ andptr(c_rarg2, c_rarg3); |
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1012 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_bits()); |
304 | 1013 __ cmpptr(c_rarg2, c_rarg3); |
0 | 1014 __ jcc(Assembler::notZero, error); |
1015 | |
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1016 // set r12 to heapbase for load_klass() |
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1017 __ reinit_heapbase(); |
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1018 |
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1019 // make sure klass is 'reasonable', which is not zero. |
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1020 __ load_klass(rax, rax); // get klass |
304 | 1021 __ testptr(rax, rax); |
0 | 1022 __ jcc(Assembler::zero, error); // if klass is NULL it is broken |
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1023 // TODO: Future assert that klass is lower 4g memory for UseCompressedKlassPointers |
0 | 1024 |
1025 // return if everything seems ok | |
1026 __ bind(exit); | |
304 | 1027 __ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
1583 | 1028 __ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
304 | 1029 __ pop(c_rarg3); // restore c_rarg3 |
1030 __ pop(c_rarg2); // restore c_rarg2 | |
1031 __ pop(r12); // restore r12 | |
1032 __ popf(); // restore flags | |
1583 | 1033 __ ret(4 * wordSize); // pop caller saved stuff |
0 | 1034 |
1035 // handle errors | |
1036 __ bind(error); | |
304 | 1037 __ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
1583 | 1038 __ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
304 | 1039 __ pop(c_rarg3); // get saved c_rarg3 back |
1040 __ pop(c_rarg2); // get saved c_rarg2 back | |
1041 __ pop(r12); // get saved r12 back | |
1042 __ popf(); // get saved flags off stack -- | |
0 | 1043 // will be ignored |
1044 | |
304 | 1045 __ pusha(); // push registers |
0 | 1046 // (rip is already |
1047 // already pushed) | |
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1048 // debug(char* msg, int64_t pc, int64_t regs[]) |
0 | 1049 // We've popped the registers we'd saved (c_rarg3, c_rarg2 and flags), and |
1050 // pushed all the registers, so now the stack looks like: | |
1051 // [tos + 0] 16 saved registers | |
1052 // [tos + 16] return address | |
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1053 // * [tos + 17] error message (char*) |
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1054 // * [tos + 18] object to verify (oop) |
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1055 // * [tos + 19] saved rax - saved by caller and bashed |
1583 | 1056 // * [tos + 20] saved r10 (rscratch1) - saved by caller |
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1057 // * = popped on exit |
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1058 |
304 | 1059 __ movptr(c_rarg0, Address(rsp, error_msg)); // pass address of error message |
1060 __ movptr(c_rarg1, Address(rsp, return_addr)); // pass return address | |
1061 __ movq(c_rarg2, rsp); // pass address of regs on stack | |
1062 __ mov(r12, rsp); // remember rsp | |
1063 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
1064 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1065 BLOCK_COMMENT("call MacroAssembler::debug"); |
304 | 1066 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, MacroAssembler::debug64))); |
1067 __ mov(rsp, r12); // restore rsp | |
1068 __ popa(); // pop registers (includes r12) | |
1583 | 1069 __ ret(4 * wordSize); // pop caller saved stuff |
0 | 1070 |
1071 return start; | |
1072 } | |
1073 | |
1074 // | |
1075 // Verify that a register contains clean 32-bits positive value | |
1076 // (high 32-bits are 0) so it could be used in 64-bits shifts. | |
1077 // | |
1078 // Input: | |
1079 // Rint - 32-bits value | |
1080 // Rtmp - scratch | |
1081 // | |
1082 void assert_clean_int(Register Rint, Register Rtmp) { | |
1083 #ifdef ASSERT | |
1084 Label L; | |
1085 assert_different_registers(Rtmp, Rint); | |
1086 __ movslq(Rtmp, Rint); | |
1087 __ cmpq(Rtmp, Rint); | |
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1088 __ jcc(Assembler::equal, L); |
0 | 1089 __ stop("high 32-bits of int value are not 0"); |
1090 __ bind(L); | |
1091 #endif | |
1092 } | |
1093 | |
1094 // Generate overlap test for array copy stubs | |
1095 // | |
1096 // Input: | |
1097 // c_rarg0 - from | |
1098 // c_rarg1 - to | |
1099 // c_rarg2 - element count | |
1100 // | |
1101 // Output: | |
1102 // rax - &from[element count - 1] | |
1103 // | |
1104 void array_overlap_test(address no_overlap_target, Address::ScaleFactor sf) { | |
1105 assert(no_overlap_target != NULL, "must be generated"); | |
1106 array_overlap_test(no_overlap_target, NULL, sf); | |
1107 } | |
1108 void array_overlap_test(Label& L_no_overlap, Address::ScaleFactor sf) { | |
1109 array_overlap_test(NULL, &L_no_overlap, sf); | |
1110 } | |
1111 void array_overlap_test(address no_overlap_target, Label* NOLp, Address::ScaleFactor sf) { | |
1112 const Register from = c_rarg0; | |
1113 const Register to = c_rarg1; | |
1114 const Register count = c_rarg2; | |
1115 const Register end_from = rax; | |
1116 | |
304 | 1117 __ cmpptr(to, from); |
1118 __ lea(end_from, Address(from, count, sf, 0)); | |
0 | 1119 if (NOLp == NULL) { |
1120 ExternalAddress no_overlap(no_overlap_target); | |
1121 __ jump_cc(Assembler::belowEqual, no_overlap); | |
304 | 1122 __ cmpptr(to, end_from); |
0 | 1123 __ jump_cc(Assembler::aboveEqual, no_overlap); |
1124 } else { | |
1125 __ jcc(Assembler::belowEqual, (*NOLp)); | |
304 | 1126 __ cmpptr(to, end_from); |
0 | 1127 __ jcc(Assembler::aboveEqual, (*NOLp)); |
1128 } | |
1129 } | |
1130 | |
1131 // Shuffle first three arg regs on Windows into Linux/Solaris locations. | |
1132 // | |
1133 // Outputs: | |
1134 // rdi - rcx | |
1135 // rsi - rdx | |
1136 // rdx - r8 | |
1137 // rcx - r9 | |
1138 // | |
1139 // Registers r9 and r10 are used to save rdi and rsi on Windows, which latter | |
1140 // are non-volatile. r9 and r10 should not be used by the caller. | |
1141 // | |
1142 void setup_arg_regs(int nargs = 3) { | |
1143 const Register saved_rdi = r9; | |
1144 const Register saved_rsi = r10; | |
1145 assert(nargs == 3 || nargs == 4, "else fix"); | |
1146 #ifdef _WIN64 | |
1147 assert(c_rarg0 == rcx && c_rarg1 == rdx && c_rarg2 == r8 && c_rarg3 == r9, | |
1148 "unexpected argument registers"); | |
1149 if (nargs >= 4) | |
304 | 1150 __ mov(rax, r9); // r9 is also saved_rdi |
1151 __ movptr(saved_rdi, rdi); | |
1152 __ movptr(saved_rsi, rsi); | |
1153 __ mov(rdi, rcx); // c_rarg0 | |
1154 __ mov(rsi, rdx); // c_rarg1 | |
1155 __ mov(rdx, r8); // c_rarg2 | |
0 | 1156 if (nargs >= 4) |
304 | 1157 __ mov(rcx, rax); // c_rarg3 (via rax) |
0 | 1158 #else |
1159 assert(c_rarg0 == rdi && c_rarg1 == rsi && c_rarg2 == rdx && c_rarg3 == rcx, | |
1160 "unexpected argument registers"); | |
1161 #endif | |
1162 } | |
1163 | |
1164 void restore_arg_regs() { | |
1165 const Register saved_rdi = r9; | |
1166 const Register saved_rsi = r10; | |
1167 #ifdef _WIN64 | |
304 | 1168 __ movptr(rdi, saved_rdi); |
1169 __ movptr(rsi, saved_rsi); | |
0 | 1170 #endif |
1171 } | |
1172 | |
1173 // Generate code for an array write pre barrier | |
1174 // | |
1175 // addr - starting address | |
2324 | 1176 // count - element count |
1177 // tmp - scratch register | |
0 | 1178 // |
1179 // Destroy no registers! | |
1180 // | |
2324 | 1181 void gen_write_ref_array_pre_barrier(Register addr, Register count, bool dest_uninitialized) { |
0 | 1182 BarrierSet* bs = Universe::heap()->barrier_set(); |
1183 switch (bs->kind()) { | |
1184 case BarrierSet::G1SATBCT: | |
1185 case BarrierSet::G1SATBCTLogging: | |
2324 | 1186 // With G1, don't generate the call if we statically know that the target in uninitialized |
1187 if (!dest_uninitialized) { | |
1188 __ pusha(); // push registers | |
1189 if (count == c_rarg0) { | |
1190 if (addr == c_rarg1) { | |
1191 // exactly backwards!! | |
1192 __ xchgptr(c_rarg1, c_rarg0); | |
1193 } else { | |
1194 __ movptr(c_rarg1, count); | |
1195 __ movptr(c_rarg0, addr); | |
1196 } | |
1197 } else { | |
1198 __ movptr(c_rarg0, addr); | |
1199 __ movptr(c_rarg1, count); | |
1200 } | |
1201 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_pre), 2); | |
1202 __ popa(); | |
0 | 1203 } |
2324 | 1204 break; |
0 | 1205 case BarrierSet::CardTableModRef: |
1206 case BarrierSet::CardTableExtension: | |
1207 case BarrierSet::ModRef: | |
1208 break; | |
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1209 default: |
0 | 1210 ShouldNotReachHere(); |
1211 | |
1212 } | |
1213 } | |
1214 | |
1215 // | |
1216 // Generate code for an array write post barrier | |
1217 // | |
1218 // Input: | |
1219 // start - register containing starting address of destination array | |
1220 // end - register containing ending address of destination array | |
1221 // scratch - scratch register | |
1222 // | |
1223 // The input registers are overwritten. | |
1224 // The ending address is inclusive. | |
1225 void gen_write_ref_array_post_barrier(Register start, Register end, Register scratch) { | |
1226 assert_different_registers(start, end, scratch); | |
1227 BarrierSet* bs = Universe::heap()->barrier_set(); | |
1228 switch (bs->kind()) { | |
1229 case BarrierSet::G1SATBCT: | |
1230 case BarrierSet::G1SATBCTLogging: | |
1231 | |
1232 { | |
304 | 1233 __ pusha(); // push registers (overkill) |
0 | 1234 // must compute element count unless barrier set interface is changed (other platforms supply count) |
1235 assert_different_registers(start, end, scratch); | |
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1236 __ lea(scratch, Address(end, BytesPerHeapOop)); |
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1237 __ subptr(scratch, start); // subtract start to get #bytes |
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1238 __ shrptr(scratch, LogBytesPerHeapOop); // convert to element count |
304 | 1239 __ mov(c_rarg0, start); |
1240 __ mov(c_rarg1, scratch); | |
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1241 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_post), 2); |
304 | 1242 __ popa(); |
0 | 1243 } |
1244 break; | |
1245 case BarrierSet::CardTableModRef: | |
1246 case BarrierSet::CardTableExtension: | |
1247 { | |
1248 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | |
1249 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); | |
1250 | |
1251 Label L_loop; | |
1252 | |
304 | 1253 __ shrptr(start, CardTableModRefBS::card_shift); |
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1254 __ addptr(end, BytesPerHeapOop); |
304 | 1255 __ shrptr(end, CardTableModRefBS::card_shift); |
1256 __ subptr(end, start); // number of bytes to copy | |
0 | 1257 |
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1258 intptr_t disp = (intptr_t) ct->byte_map_base; |
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1259 if (Assembler::is_simm32(disp)) { |
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1260 Address cardtable(noreg, noreg, Address::no_scale, disp); |
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1261 __ lea(scratch, cardtable); |
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1262 } else { |
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1263 ExternalAddress cardtable((address)disp); |
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1264 __ lea(scratch, cardtable); |
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1265 } |
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1266 |
0 | 1267 const Register count = end; // 'end' register contains bytes count now |
304 | 1268 __ addptr(start, scratch); |
0 | 1269 __ BIND(L_loop); |
1270 __ movb(Address(start, count, Address::times_1), 0); | |
304 | 1271 __ decrement(count); |
0 | 1272 __ jcc(Assembler::greaterEqual, L_loop); |
1273 } | |
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1274 break; |
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1275 default: |
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1276 ShouldNotReachHere(); |
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1277 |
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1278 } |
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1279 } |
0 | 1280 |
405 | 1281 |
0 | 1282 // Copy big chunks forward |
1283 // | |
1284 // Inputs: | |
1285 // end_from - source arrays end address | |
1286 // end_to - destination array end address | |
1287 // qword_count - 64-bits element count, negative | |
1288 // to - scratch | |
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1289 // L_copy_bytes - entry label |
0 | 1290 // L_copy_8_bytes - exit label |
1291 // | |
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1292 void copy_bytes_forward(Register end_from, Register end_to, |
0 | 1293 Register qword_count, Register to, |
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1294 Label& L_copy_bytes, Label& L_copy_8_bytes) { |
0 | 1295 DEBUG_ONLY(__ stop("enter at entry label, not here")); |
1296 Label L_loop; | |
1365 | 1297 __ align(OptoLoopAlignment); |
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1298 if (UseUnalignedLoadStores) { |
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1299 Label L_end; |
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1300 // Copy 64-bytes per iteration |
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1301 __ BIND(L_loop); |
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1302 if (UseAVX >= 2) { |
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1303 __ vmovdqu(xmm0, Address(end_from, qword_count, Address::times_8, -56)); |
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1304 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -56), xmm0); |
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1305 __ vmovdqu(xmm1, Address(end_from, qword_count, Address::times_8, -24)); |
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1306 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -24), xmm1); |
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1307 } else { |
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1308 __ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -56)); |
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1309 __ movdqu(Address(end_to, qword_count, Address::times_8, -56), xmm0); |
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1310 __ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, -40)); |
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1311 __ movdqu(Address(end_to, qword_count, Address::times_8, -40), xmm1); |
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1312 __ movdqu(xmm2, Address(end_from, qword_count, Address::times_8, -24)); |
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1313 __ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm2); |
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1314 __ movdqu(xmm3, Address(end_from, qword_count, Address::times_8, - 8)); |
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1315 __ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm3); |
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1316 } |
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1317 __ BIND(L_copy_bytes); |
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1318 __ addptr(qword_count, 8); |
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1319 __ jcc(Assembler::lessEqual, L_loop); |
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1320 __ subptr(qword_count, 4); // sub(8) and add(4) |
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1321 __ jccb(Assembler::greater, L_end); |
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1322 // Copy trailing 32 bytes |
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1323 if (UseAVX >= 2) { |
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1324 __ vmovdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); |
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1325 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); |
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1326 } else { |
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1327 __ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); |
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1328 __ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); |
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1329 __ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, - 8)); |
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1330 __ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm1); |
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1331 } |
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1332 __ addptr(qword_count, 4); |
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1333 __ BIND(L_end); |
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1334 if (UseAVX >= 2) { |
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1335 // clean upper bits of YMM registers |
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1336 __ vzeroupper(); |
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1337 } |
405 | 1338 } else { |
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1339 // Copy 32-bytes per iteration |
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1340 __ BIND(L_loop); |
405 | 1341 __ movq(to, Address(end_from, qword_count, Address::times_8, -24)); |
1342 __ movq(Address(end_to, qword_count, Address::times_8, -24), to); | |
1343 __ movq(to, Address(end_from, qword_count, Address::times_8, -16)); | |
1344 __ movq(Address(end_to, qword_count, Address::times_8, -16), to); | |
1345 __ movq(to, Address(end_from, qword_count, Address::times_8, - 8)); | |
1346 __ movq(Address(end_to, qword_count, Address::times_8, - 8), to); | |
1347 __ movq(to, Address(end_from, qword_count, Address::times_8, - 0)); | |
1348 __ movq(Address(end_to, qword_count, Address::times_8, - 0), to); | |
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1349 |
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1350 __ BIND(L_copy_bytes); |
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1351 __ addptr(qword_count, 4); |
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1352 __ jcc(Assembler::lessEqual, L_loop); |
405 | 1353 } |
304 | 1354 __ subptr(qword_count, 4); |
0 | 1355 __ jcc(Assembler::less, L_copy_8_bytes); // Copy trailing qwords |
1356 } | |
1357 | |
1358 // Copy big chunks backward | |
1359 // | |
1360 // Inputs: | |
1361 // from - source arrays address | |
1362 // dest - destination array address | |
1363 // qword_count - 64-bits element count | |
1364 // to - scratch | |
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1365 // L_copy_bytes - entry label |
0 | 1366 // L_copy_8_bytes - exit label |
1367 // | |
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1368 void copy_bytes_backward(Register from, Register dest, |
0 | 1369 Register qword_count, Register to, |
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1370 Label& L_copy_bytes, Label& L_copy_8_bytes) { |
0 | 1371 DEBUG_ONLY(__ stop("enter at entry label, not here")); |
1372 Label L_loop; | |
1365 | 1373 __ align(OptoLoopAlignment); |
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1374 if (UseUnalignedLoadStores) { |
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1375 Label L_end; |
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1376 // Copy 64-bytes per iteration |
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1377 __ BIND(L_loop); |
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1378 if (UseAVX >= 2) { |
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1379 __ vmovdqu(xmm0, Address(from, qword_count, Address::times_8, 32)); |
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1380 __ vmovdqu(Address(dest, qword_count, Address::times_8, 32), xmm0); |
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1381 __ vmovdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); |
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1382 __ vmovdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); |
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1383 } else { |
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1384 __ movdqu(xmm0, Address(from, qword_count, Address::times_8, 48)); |
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1385 __ movdqu(Address(dest, qword_count, Address::times_8, 48), xmm0); |
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1386 __ movdqu(xmm1, Address(from, qword_count, Address::times_8, 32)); |
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1387 __ movdqu(Address(dest, qword_count, Address::times_8, 32), xmm1); |
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1388 __ movdqu(xmm2, Address(from, qword_count, Address::times_8, 16)); |
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1389 __ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm2); |
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1390 __ movdqu(xmm3, Address(from, qword_count, Address::times_8, 0)); |
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1391 __ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm3); |
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1392 } |
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1393 __ BIND(L_copy_bytes); |
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1394 __ subptr(qword_count, 8); |
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1395 __ jcc(Assembler::greaterEqual, L_loop); |
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1396 |
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1397 __ addptr(qword_count, 4); // add(8) and sub(4) |
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1398 __ jccb(Assembler::less, L_end); |
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1399 // Copy trailing 32 bytes |
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1400 if (UseAVX >= 2) { |
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1401 __ vmovdqu(xmm0, Address(from, qword_count, Address::times_8, 0)); |
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1402 __ vmovdqu(Address(dest, qword_count, Address::times_8, 0), xmm0); |
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1403 } else { |
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1404 __ movdqu(xmm0, Address(from, qword_count, Address::times_8, 16)); |
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1405 __ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm0); |
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1406 __ movdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); |
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1407 __ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); |
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1408 } |
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1409 __ subptr(qword_count, 4); |
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1410 __ BIND(L_end); |
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1411 if (UseAVX >= 2) { |
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1412 // clean upper bits of YMM registers |
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1413 __ vzeroupper(); |
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1414 } |
405 | 1415 } else { |
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1416 // Copy 32-bytes per iteration |
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1417 __ BIND(L_loop); |
405 | 1418 __ movq(to, Address(from, qword_count, Address::times_8, 24)); |
1419 __ movq(Address(dest, qword_count, Address::times_8, 24), to); | |
1420 __ movq(to, Address(from, qword_count, Address::times_8, 16)); | |
1421 __ movq(Address(dest, qword_count, Address::times_8, 16), to); | |
1422 __ movq(to, Address(from, qword_count, Address::times_8, 8)); | |
1423 __ movq(Address(dest, qword_count, Address::times_8, 8), to); | |
1424 __ movq(to, Address(from, qword_count, Address::times_8, 0)); | |
1425 __ movq(Address(dest, qword_count, Address::times_8, 0), to); | |
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1426 |
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1427 __ BIND(L_copy_bytes); |
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1428 __ subptr(qword_count, 4); |
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1429 __ jcc(Assembler::greaterEqual, L_loop); |
405 | 1430 } |
304 | 1431 __ addptr(qword_count, 4); |
0 | 1432 __ jcc(Assembler::greater, L_copy_8_bytes); // Copy trailing qwords |
1433 } | |
1434 | |
1435 | |
1436 // Arguments: | |
1437 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1438 // ignored | |
1439 // name - stub name string | |
1440 // | |
1441 // Inputs: | |
1442 // c_rarg0 - source array address | |
1443 // c_rarg1 - destination array address | |
1444 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1445 // | |
1446 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
1447 // we let the hardware handle it. The one to eight bytes within words, | |
1448 // dwords or qwords that span cache line boundaries will still be loaded | |
1449 // and stored atomically. | |
1450 // | |
1451 // Side Effects: | |
1452 // disjoint_byte_copy_entry is set to the no-overlap entry point | |
1453 // used by generate_conjoint_byte_copy(). | |
1454 // | |
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1455 address generate_disjoint_byte_copy(bool aligned, address* entry, const char *name) { |
0 | 1456 __ align(CodeEntryAlignment); |
1457 StubCodeMark mark(this, "StubRoutines", name); | |
1458 address start = __ pc(); | |
1459 | |
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1460 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
0 | 1461 Label L_copy_byte, L_exit; |
1462 const Register from = rdi; // source array address | |
1463 const Register to = rsi; // destination array address | |
1464 const Register count = rdx; // elements count | |
1465 const Register byte_count = rcx; | |
1466 const Register qword_count = count; | |
1467 const Register end_from = from; // source array end address | |
1468 const Register end_to = to; // destination array end address | |
1469 // End pointers are inclusive, and if count is not zero they point | |
1470 // to the last unit copied: end_to[0] := end_from[0] | |
1471 | |
1472 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1473 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1474 | |
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1475 if (entry != NULL) { |
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1476 *entry = __ pc(); |
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1477 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1478 BLOCK_COMMENT("Entry:"); |
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1479 } |
0 | 1480 |
1481 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
1482 // r9 and r10 may be used to save non-volatile registers | |
1483 | |
1484 // 'from', 'to' and 'count' are now valid | |
304 | 1485 __ movptr(byte_count, count); |
1486 __ shrptr(count, 3); // count => qword_count | |
0 | 1487 |
1488 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1489 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1490 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1491 __ negptr(qword_count); // make the count negative | |
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1492 __ jmp(L_copy_bytes); |
0 | 1493 |
1494 // Copy trailing qwords | |
1495 __ BIND(L_copy_8_bytes); | |
1496 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1497 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1498 __ increment(qword_count); |
0 | 1499 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1500 | |
1501 // Check for and copy trailing dword | |
1502 __ BIND(L_copy_4_bytes); | |
304 | 1503 __ testl(byte_count, 4); |
0 | 1504 __ jccb(Assembler::zero, L_copy_2_bytes); |
1505 __ movl(rax, Address(end_from, 8)); | |
1506 __ movl(Address(end_to, 8), rax); | |
1507 | |
304 | 1508 __ addptr(end_from, 4); |
1509 __ addptr(end_to, 4); | |
0 | 1510 |
1511 // Check for and copy trailing word | |
1512 __ BIND(L_copy_2_bytes); | |
304 | 1513 __ testl(byte_count, 2); |
0 | 1514 __ jccb(Assembler::zero, L_copy_byte); |
1515 __ movw(rax, Address(end_from, 8)); | |
1516 __ movw(Address(end_to, 8), rax); | |
1517 | |
304 | 1518 __ addptr(end_from, 2); |
1519 __ addptr(end_to, 2); | |
0 | 1520 |
1521 // Check for and copy trailing byte | |
1522 __ BIND(L_copy_byte); | |
304 | 1523 __ testl(byte_count, 1); |
0 | 1524 __ jccb(Assembler::zero, L_exit); |
1525 __ movb(rax, Address(end_from, 8)); | |
1526 __ movb(Address(end_to, 8), rax); | |
1527 | |
1528 __ BIND(L_exit); | |
1529 restore_arg_regs(); | |
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1530 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1531 __ xorptr(rax, rax); // return 0 |
0 | 1532 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1533 __ ret(0); | |
1534 | |
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1535 // Copy in multi-bytes chunks |
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1536 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 1537 __ jmp(L_copy_4_bytes); |
1538 | |
1539 return start; | |
1540 } | |
1541 | |
1542 // Arguments: | |
1543 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1544 // ignored | |
1545 // name - stub name string | |
1546 // | |
1547 // Inputs: | |
1548 // c_rarg0 - source array address | |
1549 // c_rarg1 - destination array address | |
1550 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1551 // | |
1552 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
1553 // we let the hardware handle it. The one to eight bytes within words, | |
1554 // dwords or qwords that span cache line boundaries will still be loaded | |
1555 // and stored atomically. | |
1556 // | |
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1557 address generate_conjoint_byte_copy(bool aligned, address nooverlap_target, |
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1558 address* entry, const char *name) { |
0 | 1559 __ align(CodeEntryAlignment); |
1560 StubCodeMark mark(this, "StubRoutines", name); | |
1561 address start = __ pc(); | |
1562 | |
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1563 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
0 | 1564 const Register from = rdi; // source array address |
1565 const Register to = rsi; // destination array address | |
1566 const Register count = rdx; // elements count | |
1567 const Register byte_count = rcx; | |
1568 const Register qword_count = count; | |
1569 | |
1570 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1571 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1572 | |
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1573 if (entry != NULL) { |
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1574 *entry = __ pc(); |
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1575 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1576 BLOCK_COMMENT("Entry:"); |
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1577 } |
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1578 |
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1579 array_overlap_test(nooverlap_target, Address::times_1); |
0 | 1580 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1581 // r9 and r10 may be used to save non-volatile registers | |
1582 | |
1583 // 'from', 'to' and 'count' are now valid | |
304 | 1584 __ movptr(byte_count, count); |
1585 __ shrptr(count, 3); // count => qword_count | |
0 | 1586 |
1587 // Copy from high to low addresses. | |
1588 | |
1589 // Check for and copy trailing byte | |
304 | 1590 __ testl(byte_count, 1); |
0 | 1591 __ jcc(Assembler::zero, L_copy_2_bytes); |
1592 __ movb(rax, Address(from, byte_count, Address::times_1, -1)); | |
1593 __ movb(Address(to, byte_count, Address::times_1, -1), rax); | |
304 | 1594 __ decrement(byte_count); // Adjust for possible trailing word |
0 | 1595 |
1596 // Check for and copy trailing word | |
1597 __ BIND(L_copy_2_bytes); | |
304 | 1598 __ testl(byte_count, 2); |
0 | 1599 __ jcc(Assembler::zero, L_copy_4_bytes); |
1600 __ movw(rax, Address(from, byte_count, Address::times_1, -2)); | |
1601 __ movw(Address(to, byte_count, Address::times_1, -2), rax); | |
1602 | |
1603 // Check for and copy trailing dword | |
1604 __ BIND(L_copy_4_bytes); | |
304 | 1605 __ testl(byte_count, 4); |
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1606 __ jcc(Assembler::zero, L_copy_bytes); |
0 | 1607 __ movl(rax, Address(from, qword_count, Address::times_8)); |
1608 __ movl(Address(to, qword_count, Address::times_8), rax); | |
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1609 __ jmp(L_copy_bytes); |
0 | 1610 |
1611 // Copy trailing qwords | |
1612 __ BIND(L_copy_8_bytes); | |
1613 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1614 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 1615 __ decrement(qword_count); |
0 | 1616 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1617 | |
1618 restore_arg_regs(); | |
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1619 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1620 __ xorptr(rax, rax); // return 0 |
0 | 1621 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1622 __ ret(0); | |
1623 | |
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1624 // Copy in multi-bytes chunks |
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1625 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 1626 |
1627 restore_arg_regs(); | |
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1628 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1629 __ xorptr(rax, rax); // return 0 |
0 | 1630 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1631 __ ret(0); | |
1632 | |
1633 return start; | |
1634 } | |
1635 | |
1636 // Arguments: | |
1637 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1638 // ignored | |
1639 // name - stub name string | |
1640 // | |
1641 // Inputs: | |
1642 // c_rarg0 - source array address | |
1643 // c_rarg1 - destination array address | |
1644 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1645 // | |
1646 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
1647 // let the hardware handle it. The two or four words within dwords | |
1648 // or qwords that span cache line boundaries will still be loaded | |
1649 // and stored atomically. | |
1650 // | |
1651 // Side Effects: | |
1652 // disjoint_short_copy_entry is set to the no-overlap entry point | |
1653 // used by generate_conjoint_short_copy(). | |
1654 // | |
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1655 address generate_disjoint_short_copy(bool aligned, address *entry, const char *name) { |
0 | 1656 __ align(CodeEntryAlignment); |
1657 StubCodeMark mark(this, "StubRoutines", name); | |
1658 address start = __ pc(); | |
1659 | |
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1660 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes,L_copy_2_bytes,L_exit; |
0 | 1661 const Register from = rdi; // source array address |
1662 const Register to = rsi; // destination array address | |
1663 const Register count = rdx; // elements count | |
1664 const Register word_count = rcx; | |
1665 const Register qword_count = count; | |
1666 const Register end_from = from; // source array end address | |
1667 const Register end_to = to; // destination array end address | |
1668 // End pointers are inclusive, and if count is not zero they point | |
1669 // to the last unit copied: end_to[0] := end_from[0] | |
1670 | |
1671 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1672 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1673 | |
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1674 if (entry != NULL) { |
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1675 *entry = __ pc(); |
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1676 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1677 BLOCK_COMMENT("Entry:"); |
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1678 } |
0 | 1679 |
1680 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
1681 // r9 and r10 may be used to save non-volatile registers | |
1682 | |
1683 // 'from', 'to' and 'count' are now valid | |
304 | 1684 __ movptr(word_count, count); |
1685 __ shrptr(count, 2); // count => qword_count | |
0 | 1686 |
1687 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1688 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1689 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1690 __ negptr(qword_count); | |
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1691 __ jmp(L_copy_bytes); |
0 | 1692 |
1693 // Copy trailing qwords | |
1694 __ BIND(L_copy_8_bytes); | |
1695 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1696 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1697 __ increment(qword_count); |
0 | 1698 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1699 | |
1700 // Original 'dest' is trashed, so we can't use it as a | |
1701 // base register for a possible trailing word copy | |
1702 | |
1703 // Check for and copy trailing dword | |
1704 __ BIND(L_copy_4_bytes); | |
304 | 1705 __ testl(word_count, 2); |
0 | 1706 __ jccb(Assembler::zero, L_copy_2_bytes); |
1707 __ movl(rax, Address(end_from, 8)); | |
1708 __ movl(Address(end_to, 8), rax); | |
1709 | |
304 | 1710 __ addptr(end_from, 4); |
1711 __ addptr(end_to, 4); | |
0 | 1712 |
1713 // Check for and copy trailing word | |
1714 __ BIND(L_copy_2_bytes); | |
304 | 1715 __ testl(word_count, 1); |
0 | 1716 __ jccb(Assembler::zero, L_exit); |
1717 __ movw(rax, Address(end_from, 8)); | |
1718 __ movw(Address(end_to, 8), rax); | |
1719 | |
1720 __ BIND(L_exit); | |
1721 restore_arg_regs(); | |
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1722 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1723 __ xorptr(rax, rax); // return 0 |
0 | 1724 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1725 __ ret(0); | |
1726 | |
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1727 // Copy in multi-bytes chunks |
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1728 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 1729 __ jmp(L_copy_4_bytes); |
1730 | |
1731 return start; | |
1732 } | |
1733 | |
1763 | 1734 address generate_fill(BasicType t, bool aligned, const char *name) { |
1735 __ align(CodeEntryAlignment); | |
1736 StubCodeMark mark(this, "StubRoutines", name); | |
1737 address start = __ pc(); | |
1738 | |
1739 BLOCK_COMMENT("Entry:"); | |
1740 | |
1741 const Register to = c_rarg0; // source array address | |
1742 const Register value = c_rarg1; // value | |
1743 const Register count = c_rarg2; // elements count | |
1744 | |
1745 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1746 | |
1747 __ generate_fill(t, aligned, to, value, count, rax, xmm0); | |
1748 | |
1749 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
1750 __ ret(0); | |
1751 return start; | |
1752 } | |
1753 | |
0 | 1754 // Arguments: |
1755 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1756 // ignored | |
1757 // name - stub name string | |
1758 // | |
1759 // Inputs: | |
1760 // c_rarg0 - source array address | |
1761 // c_rarg1 - destination array address | |
1762 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1763 // | |
1764 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
1765 // let the hardware handle it. The two or four words within dwords | |
1766 // or qwords that span cache line boundaries will still be loaded | |
1767 // and stored atomically. | |
1768 // | |
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1769 address generate_conjoint_short_copy(bool aligned, address nooverlap_target, |
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1770 address *entry, const char *name) { |
0 | 1771 __ align(CodeEntryAlignment); |
1772 StubCodeMark mark(this, "StubRoutines", name); | |
1773 address start = __ pc(); | |
1774 | |
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1775 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes; |
0 | 1776 const Register from = rdi; // source array address |
1777 const Register to = rsi; // destination array address | |
1778 const Register count = rdx; // elements count | |
1779 const Register word_count = rcx; | |
1780 const Register qword_count = count; | |
1781 | |
1782 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1783 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1784 | |
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1785 if (entry != NULL) { |
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1786 *entry = __ pc(); |
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1787 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1788 BLOCK_COMMENT("Entry:"); |
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1789 } |
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1790 |
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1791 array_overlap_test(nooverlap_target, Address::times_2); |
0 | 1792 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1793 // r9 and r10 may be used to save non-volatile registers | |
1794 | |
1795 // 'from', 'to' and 'count' are now valid | |
304 | 1796 __ movptr(word_count, count); |
1797 __ shrptr(count, 2); // count => qword_count | |
0 | 1798 |
1799 // Copy from high to low addresses. Use 'to' as scratch. | |
1800 | |
1801 // Check for and copy trailing word | |
304 | 1802 __ testl(word_count, 1); |
0 | 1803 __ jccb(Assembler::zero, L_copy_4_bytes); |
1804 __ movw(rax, Address(from, word_count, Address::times_2, -2)); | |
1805 __ movw(Address(to, word_count, Address::times_2, -2), rax); | |
1806 | |
1807 // Check for and copy trailing dword | |
1808 __ BIND(L_copy_4_bytes); | |
304 | 1809 __ testl(word_count, 2); |
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1810 __ jcc(Assembler::zero, L_copy_bytes); |
0 | 1811 __ movl(rax, Address(from, qword_count, Address::times_8)); |
1812 __ movl(Address(to, qword_count, Address::times_8), rax); | |
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1813 __ jmp(L_copy_bytes); |
0 | 1814 |
1815 // Copy trailing qwords | |
1816 __ BIND(L_copy_8_bytes); | |
1817 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1818 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 1819 __ decrement(qword_count); |
0 | 1820 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1821 | |
1822 restore_arg_regs(); | |
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1823 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1824 __ xorptr(rax, rax); // return 0 |
0 | 1825 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1826 __ ret(0); | |
1827 | |
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1828 // Copy in multi-bytes chunks |
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1829 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 1830 |
1831 restore_arg_regs(); | |
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1832 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1833 __ xorptr(rax, rax); // return 0 |
0 | 1834 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1835 __ ret(0); | |
1836 | |
1837 return start; | |
1838 } | |
1839 | |
1840 // Arguments: | |
1841 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1842 // ignored | |
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1843 // is_oop - true => oop array, so generate store check code |
0 | 1844 // name - stub name string |
1845 // | |
1846 // Inputs: | |
1847 // c_rarg0 - source array address | |
1848 // c_rarg1 - destination array address | |
1849 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1850 // | |
1851 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
1852 // the hardware handle it. The two dwords within qwords that span | |
1853 // cache line boundaries will still be loaded and stored atomicly. | |
1854 // | |
1855 // Side Effects: | |
1856 // disjoint_int_copy_entry is set to the no-overlap entry point | |
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1857 // used by generate_conjoint_int_oop_copy(). |
0 | 1858 // |
2324 | 1859 address generate_disjoint_int_oop_copy(bool aligned, bool is_oop, address* entry, |
1860 const char *name, bool dest_uninitialized = false) { | |
0 | 1861 __ align(CodeEntryAlignment); |
1862 StubCodeMark mark(this, "StubRoutines", name); | |
1863 address start = __ pc(); | |
1864 | |
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1865 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_exit; |
0 | 1866 const Register from = rdi; // source array address |
1867 const Register to = rsi; // destination array address | |
1868 const Register count = rdx; // elements count | |
1869 const Register dword_count = rcx; | |
1870 const Register qword_count = count; | |
1871 const Register end_from = from; // source array end address | |
1872 const Register end_to = to; // destination array end address | |
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1873 const Register saved_to = r11; // saved destination array address |
0 | 1874 // End pointers are inclusive, and if count is not zero they point |
1875 // to the last unit copied: end_to[0] := end_from[0] | |
1876 | |
1877 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1878 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1879 | |
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1880 if (entry != NULL) { |
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1881 *entry = __ pc(); |
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1882 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1883 BLOCK_COMMENT("Entry:"); |
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1884 } |
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1885 |
0 | 1886 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1887 // r9 and r10 may be used to save non-volatile registers | |
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1888 if (is_oop) { |
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1889 __ movq(saved_to, to); |
2324 | 1890 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1891 } |
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1892 |
0 | 1893 // 'from', 'to' and 'count' are now valid |
304 | 1894 __ movptr(dword_count, count); |
1895 __ shrptr(count, 1); // count => qword_count | |
0 | 1896 |
1897 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 1898 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1899 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
1900 __ negptr(qword_count); | |
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1901 __ jmp(L_copy_bytes); |
0 | 1902 |
1903 // Copy trailing qwords | |
1904 __ BIND(L_copy_8_bytes); | |
1905 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
1906 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 1907 __ increment(qword_count); |
0 | 1908 __ jcc(Assembler::notZero, L_copy_8_bytes); |
1909 | |
1910 // Check for and copy trailing dword | |
1911 __ BIND(L_copy_4_bytes); | |
304 | 1912 __ testl(dword_count, 1); // Only byte test since the value is 0 or 1 |
0 | 1913 __ jccb(Assembler::zero, L_exit); |
1914 __ movl(rax, Address(end_from, 8)); | |
1915 __ movl(Address(end_to, 8), rax); | |
1916 | |
1917 __ BIND(L_exit); | |
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1918 if (is_oop) { |
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1919 __ leaq(end_to, Address(saved_to, dword_count, Address::times_4, -4)); |
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1920 gen_write_ref_array_post_barrier(saved_to, end_to, rax); |
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1921 } |
0 | 1922 restore_arg_regs(); |
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1923 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 1924 __ xorptr(rax, rax); // return 0 |
0 | 1925 __ leave(); // required for proper stackwalking of RuntimeStub frame |
1926 __ ret(0); | |
1927 | |
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1928 // Copy in multi-bytes chunks |
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1929 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 1930 __ jmp(L_copy_4_bytes); |
1931 | |
1932 return start; | |
1933 } | |
1934 | |
1935 // Arguments: | |
1936 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
1937 // ignored | |
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1938 // is_oop - true => oop array, so generate store check code |
0 | 1939 // name - stub name string |
1940 // | |
1941 // Inputs: | |
1942 // c_rarg0 - source array address | |
1943 // c_rarg1 - destination array address | |
1944 // c_rarg2 - element count, treated as ssize_t, can be zero | |
1945 // | |
1946 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
1947 // the hardware handle it. The two dwords within qwords that span | |
1948 // cache line boundaries will still be loaded and stored atomicly. | |
1949 // | |
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1950 address generate_conjoint_int_oop_copy(bool aligned, bool is_oop, address nooverlap_target, |
2324 | 1951 address *entry, const char *name, |
1952 bool dest_uninitialized = false) { | |
0 | 1953 __ align(CodeEntryAlignment); |
1954 StubCodeMark mark(this, "StubRoutines", name); | |
1955 address start = __ pc(); | |
1956 | |
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1957 Label L_copy_bytes, L_copy_8_bytes, L_copy_2_bytes, L_exit; |
0 | 1958 const Register from = rdi; // source array address |
1959 const Register to = rsi; // destination array address | |
1960 const Register count = rdx; // elements count | |
1961 const Register dword_count = rcx; | |
1962 const Register qword_count = count; | |
1963 | |
1964 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
1965 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
1966 | |
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1967 if (entry != NULL) { |
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1968 *entry = __ pc(); |
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1969 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1970 BLOCK_COMMENT("Entry:"); |
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1971 } |
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1972 |
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1973 array_overlap_test(nooverlap_target, Address::times_4); |
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1974 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
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1975 // r9 and r10 may be used to save non-volatile registers |
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1976 |
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1977 if (is_oop) { |
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1978 // no registers are destroyed by this call |
2324 | 1979 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1980 } |
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1981 |
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1982 assert_clean_int(count, rax); // Make sure 'count' is clean int. |
0 | 1983 // 'from', 'to' and 'count' are now valid |
304 | 1984 __ movptr(dword_count, count); |
1985 __ shrptr(count, 1); // count => qword_count | |
0 | 1986 |
1987 // Copy from high to low addresses. Use 'to' as scratch. | |
1988 | |
1989 // Check for and copy trailing dword | |
304 | 1990 __ testl(dword_count, 1); |
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1991 __ jcc(Assembler::zero, L_copy_bytes); |
0 | 1992 __ movl(rax, Address(from, dword_count, Address::times_4, -4)); |
1993 __ movl(Address(to, dword_count, Address::times_4, -4), rax); | |
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1994 __ jmp(L_copy_bytes); |
0 | 1995 |
1996 // Copy trailing qwords | |
1997 __ BIND(L_copy_8_bytes); | |
1998 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
1999 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 2000 __ decrement(qword_count); |
0 | 2001 __ jcc(Assembler::notZero, L_copy_8_bytes); |
2002 | |
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2003 if (is_oop) { |
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2004 __ jmp(L_exit); |
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2005 } |
0 | 2006 restore_arg_regs(); |
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2007 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2008 __ xorptr(rax, rax); // return 0 |
0 | 2009 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2010 __ ret(0); | |
2011 | |
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2012 // Copy in multi-bytes chunks |
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2013 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 2014 |
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2015 __ bind(L_exit); |
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2016 if (is_oop) { |
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2017 Register end_to = rdx; |
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2018 __ leaq(end_to, Address(to, dword_count, Address::times_4, -4)); |
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2019 gen_write_ref_array_post_barrier(to, end_to, rax); |
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2020 } |
0 | 2021 restore_arg_regs(); |
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2022 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2023 __ xorptr(rax, rax); // return 0 |
0 | 2024 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2025 __ ret(0); | |
2026 | |
2027 return start; | |
2028 } | |
2029 | |
2030 // Arguments: | |
2031 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
2032 // ignored | |
2033 // is_oop - true => oop array, so generate store check code | |
2034 // name - stub name string | |
2035 // | |
2036 // Inputs: | |
2037 // c_rarg0 - source array address | |
2038 // c_rarg1 - destination array address | |
2039 // c_rarg2 - element count, treated as ssize_t, can be zero | |
2040 // | |
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2041 // Side Effects: |
0 | 2042 // disjoint_oop_copy_entry or disjoint_long_copy_entry is set to the |
2043 // no-overlap entry point used by generate_conjoint_long_oop_copy(). | |
2044 // | |
2324 | 2045 address generate_disjoint_long_oop_copy(bool aligned, bool is_oop, address *entry, |
2046 const char *name, bool dest_uninitialized = false) { | |
0 | 2047 __ align(CodeEntryAlignment); |
2048 StubCodeMark mark(this, "StubRoutines", name); | |
2049 address start = __ pc(); | |
2050 | |
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2051 Label L_copy_bytes, L_copy_8_bytes, L_exit; |
0 | 2052 const Register from = rdi; // source array address |
2053 const Register to = rsi; // destination array address | |
2054 const Register qword_count = rdx; // elements count | |
2055 const Register end_from = from; // source array end address | |
2056 const Register end_to = rcx; // destination array end address | |
2057 const Register saved_to = to; | |
2058 // End pointers are inclusive, and if count is not zero they point | |
2059 // to the last unit copied: end_to[0] := end_from[0] | |
2060 | |
2061 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2062 // Save no-overlap entry point for generate_conjoint_long_oop_copy() | |
2063 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
2064 | |
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2065 if (entry != NULL) { |
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2066 *entry = __ pc(); |
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2067 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2068 BLOCK_COMMENT("Entry:"); |
0 | 2069 } |
2070 | |
2071 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
2072 // r9 and r10 may be used to save non-volatile registers | |
2073 // 'from', 'to' and 'qword_count' are now valid | |
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2074 if (is_oop) { |
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2075 // no registers are destroyed by this call |
2324 | 2076 gen_write_ref_array_pre_barrier(to, qword_count, dest_uninitialized); |
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2077 } |
0 | 2078 |
2079 // Copy from low to high addresses. Use 'to' as scratch. | |
304 | 2080 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
2081 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
2082 __ negptr(qword_count); | |
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2083 __ jmp(L_copy_bytes); |
0 | 2084 |
2085 // Copy trailing qwords | |
2086 __ BIND(L_copy_8_bytes); | |
2087 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
2088 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
304 | 2089 __ increment(qword_count); |
0 | 2090 __ jcc(Assembler::notZero, L_copy_8_bytes); |
2091 | |
2092 if (is_oop) { | |
2093 __ jmp(L_exit); | |
2094 } else { | |
2095 restore_arg_regs(); | |
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2096 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2097 __ xorptr(rax, rax); // return 0 |
0 | 2098 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2099 __ ret(0); | |
2100 } | |
2101 | |
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2102 // Copy in multi-bytes chunks |
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2103 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 2104 |
2105 if (is_oop) { | |
2106 __ BIND(L_exit); | |
2107 gen_write_ref_array_post_barrier(saved_to, end_to, rax); | |
2108 } | |
2109 restore_arg_regs(); | |
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2110 if (is_oop) { |
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2111 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2112 } else { |
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2113 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2114 } |
304 | 2115 __ xorptr(rax, rax); // return 0 |
0 | 2116 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2117 __ ret(0); | |
2118 | |
2119 return start; | |
2120 } | |
2121 | |
2122 // Arguments: | |
2123 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
2124 // ignored | |
2125 // is_oop - true => oop array, so generate store check code | |
2126 // name - stub name string | |
2127 // | |
2128 // Inputs: | |
2129 // c_rarg0 - source array address | |
2130 // c_rarg1 - destination array address | |
2131 // c_rarg2 - element count, treated as ssize_t, can be zero | |
2132 // | |
2324 | 2133 address generate_conjoint_long_oop_copy(bool aligned, bool is_oop, |
2134 address nooverlap_target, address *entry, | |
2135 const char *name, bool dest_uninitialized = false) { | |
0 | 2136 __ align(CodeEntryAlignment); |
2137 StubCodeMark mark(this, "StubRoutines", name); | |
2138 address start = __ pc(); | |
2139 | |
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2140 Label L_copy_bytes, L_copy_8_bytes, L_exit; |
0 | 2141 const Register from = rdi; // source array address |
2142 const Register to = rsi; // destination array address | |
2143 const Register qword_count = rdx; // elements count | |
2144 const Register saved_count = rcx; | |
2145 | |
2146 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2147 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
2148 | |
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2149 if (entry != NULL) { |
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2150 *entry = __ pc(); |
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2151 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2152 BLOCK_COMMENT("Entry:"); |
0 | 2153 } |
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2154 |
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2155 array_overlap_test(nooverlap_target, Address::times_8); |
0 | 2156 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
2157 // r9 and r10 may be used to save non-volatile registers | |
2158 // 'from', 'to' and 'qword_count' are now valid | |
2159 if (is_oop) { | |
2160 // Save to and count for store barrier | |
304 | 2161 __ movptr(saved_count, qword_count); |
0 | 2162 // No registers are destroyed by this call |
2324 | 2163 gen_write_ref_array_pre_barrier(to, saved_count, dest_uninitialized); |
0 | 2164 } |
2165 | |
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2166 __ jmp(L_copy_bytes); |
0 | 2167 |
2168 // Copy trailing qwords | |
2169 __ BIND(L_copy_8_bytes); | |
2170 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
2171 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
304 | 2172 __ decrement(qword_count); |
0 | 2173 __ jcc(Assembler::notZero, L_copy_8_bytes); |
2174 | |
2175 if (is_oop) { | |
2176 __ jmp(L_exit); | |
2177 } else { | |
2178 restore_arg_regs(); | |
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2179 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
304 | 2180 __ xorptr(rax, rax); // return 0 |
0 | 2181 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2182 __ ret(0); | |
2183 } | |
2184 | |
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2185 // Copy in multi-bytes chunks |
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2186 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
0 | 2187 |
2188 if (is_oop) { | |
2189 __ BIND(L_exit); | |
304 | 2190 __ lea(rcx, Address(to, saved_count, Address::times_8, -8)); |
0 | 2191 gen_write_ref_array_post_barrier(to, rcx, rax); |
2192 } | |
2193 restore_arg_regs(); | |
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2194 if (is_oop) { |
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2195 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2196 } else { |
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2197 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2198 } |
304 | 2199 __ xorptr(rax, rax); // return 0 |
0 | 2200 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2201 __ ret(0); | |
2202 | |
2203 return start; | |
2204 } | |
2205 | |
2206 | |
2207 // Helper for generating a dynamic type check. | |
2208 // Smashes no registers. | |
2209 void generate_type_check(Register sub_klass, | |
2210 Register super_check_offset, | |
2211 Register super_klass, | |
2212 Label& L_success) { | |
2213 assert_different_registers(sub_klass, super_check_offset, super_klass); | |
2214 | |
2215 BLOCK_COMMENT("type_check:"); | |
2216 | |
2217 Label L_miss; | |
2218 | |
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2219 __ check_klass_subtype_fast_path(sub_klass, super_klass, noreg, &L_success, &L_miss, NULL, |
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2220 super_check_offset); |
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2221 __ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg, &L_success, NULL); |
0 | 2222 |
2223 // Fall through on failure! | |
2224 __ BIND(L_miss); | |
2225 } | |
2226 | |
2227 // | |
2228 // Generate checkcasting array copy stub | |
2229 // | |
2230 // Input: | |
2231 // c_rarg0 - source array address | |
2232 // c_rarg1 - destination array address | |
2233 // c_rarg2 - element count, treated as ssize_t, can be zero | |
2234 // c_rarg3 - size_t ckoff (super_check_offset) | |
2235 // not Win64 | |
2236 // c_rarg4 - oop ckval (super_klass) | |
2237 // Win64 | |
2238 // rsp+40 - oop ckval (super_klass) | |
2239 // | |
2240 // Output: | |
2241 // rax == 0 - success | |
2242 // rax == -1^K - failure, where K is partial transfer count | |
2243 // | |
2324 | 2244 address generate_checkcast_copy(const char *name, address *entry, |
2245 bool dest_uninitialized = false) { | |
0 | 2246 |
2247 Label L_load_element, L_store_element, L_do_card_marks, L_done; | |
2248 | |
2249 // Input registers (after setup_arg_regs) | |
2250 const Register from = rdi; // source array address | |
2251 const Register to = rsi; // destination array address | |
2252 const Register length = rdx; // elements count | |
2253 const Register ckoff = rcx; // super_check_offset | |
2254 const Register ckval = r8; // super_klass | |
2255 | |
2256 // Registers used as temps (r13, r14 are save-on-entry) | |
2257 const Register end_from = from; // source array end address | |
2258 const Register end_to = r13; // destination array end address | |
2259 const Register count = rdx; // -(count_remaining) | |
2260 const Register r14_length = r14; // saved copy of length | |
2261 // End pointers are inclusive, and if length is not zero they point | |
2262 // to the last unit copied: end_to[0] := end_from[0] | |
2263 | |
2264 const Register rax_oop = rax; // actual oop copied | |
2265 const Register r11_klass = r11; // oop._klass | |
2266 | |
2267 //--------------------------------------------------------------- | |
2268 // Assembler stub will be used for this call to arraycopy | |
2269 // if the two arrays are subtypes of Object[] but the | |
2270 // destination array type is not equal to or a supertype | |
2271 // of the source type. Each element must be separately | |
2272 // checked. | |
2273 | |
2274 __ align(CodeEntryAlignment); | |
2275 StubCodeMark mark(this, "StubRoutines", name); | |
2276 address start = __ pc(); | |
2277 | |
2278 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2279 | |
2280 #ifdef ASSERT | |
2281 // caller guarantees that the arrays really are different | |
2282 // otherwise, we would have to make conjoint checks | |
2283 { Label L; | |
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2284 array_overlap_test(L, TIMES_OOP); |
0 | 2285 __ stop("checkcast_copy within a single array"); |
2286 __ bind(L); | |
2287 } | |
2288 #endif //ASSERT | |
2289 | |
2290 setup_arg_regs(4); // from => rdi, to => rsi, length => rdx | |
2291 // ckoff => rcx, ckval => r8 | |
2292 // r9 and r10 may be used to save non-volatile registers | |
2293 #ifdef _WIN64 | |
2294 // last argument (#4) is on stack on Win64 | |
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2295 __ movptr(ckval, Address(rsp, 6 * wordSize)); |
0 | 2296 #endif |
2297 | |
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2298 // Caller of this entry point must set up the argument registers. |
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2299 if (entry != NULL) { |
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2300 *entry = __ pc(); |
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2301 BLOCK_COMMENT("Entry:"); |
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2302 } |
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2303 |
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2304 // allocate spill slots for r13, r14 |
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2305 enum { |
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2306 saved_r13_offset, |
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2307 saved_r14_offset, |
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2308 saved_rbp_offset |
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2309 }; |
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2310 __ subptr(rsp, saved_rbp_offset * wordSize); |
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2311 __ movptr(Address(rsp, saved_r13_offset * wordSize), r13); |
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2312 __ movptr(Address(rsp, saved_r14_offset * wordSize), r14); |
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2313 |
0 | 2314 // check that int operands are properly extended to size_t |
2315 assert_clean_int(length, rax); | |
2316 assert_clean_int(ckoff, rax); | |
2317 | |
2318 #ifdef ASSERT | |
2319 BLOCK_COMMENT("assert consistent ckoff/ckval"); | |
2320 // The ckoff and ckval must be mutually consistent, | |
2321 // even though caller generates both. | |
2322 { Label L; | |
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2323 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
0 | 2324 __ cmpl(ckoff, Address(ckval, sco_offset)); |
2325 __ jcc(Assembler::equal, L); | |
2326 __ stop("super_check_offset inconsistent"); | |
2327 __ bind(L); | |
2328 } | |
2329 #endif //ASSERT | |
2330 | |
2331 // Loop-invariant addresses. They are exclusive end pointers. | |
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2332 Address end_from_addr(from, length, TIMES_OOP, 0); |
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2333 Address end_to_addr(to, length, TIMES_OOP, 0); |
0 | 2334 // Loop-variant addresses. They assume post-incremented count < 0. |
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2335 Address from_element_addr(end_from, count, TIMES_OOP, 0); |
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2336 Address to_element_addr(end_to, count, TIMES_OOP, 0); |
0 | 2337 |
2324 | 2338 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
0 | 2339 |
2340 // Copy from low to high addresses, indexed from the end of each array. | |
304 | 2341 __ lea(end_from, end_from_addr); |
2342 __ lea(end_to, end_to_addr); | |
2343 __ movptr(r14_length, length); // save a copy of the length | |
2344 assert(length == count, ""); // else fix next line: | |
2345 __ negptr(count); // negate and test the length | |
0 | 2346 __ jcc(Assembler::notZero, L_load_element); |
2347 | |
2348 // Empty array: Nothing to do. | |
304 | 2349 __ xorptr(rax, rax); // return 0 on (trivial) success |
0 | 2350 __ jmp(L_done); |
2351 | |
2352 // ======== begin loop ======== | |
2353 // (Loop is rotated; its entry is L_load_element.) | |
2354 // Loop control: | |
2355 // for (count = -count; count != 0; count++) | |
2356 // Base pointers src, dst are biased by 8*(count-1),to last element. | |
1365 | 2357 __ align(OptoLoopAlignment); |
0 | 2358 |
2359 __ BIND(L_store_element); | |
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2360 __ store_heap_oop(to_element_addr, rax_oop); // store the oop |
304 | 2361 __ increment(count); // increment the count toward zero |
0 | 2362 __ jcc(Assembler::zero, L_do_card_marks); |
2363 | |
2364 // ======== loop entry is here ======== | |
2365 __ BIND(L_load_element); | |
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2366 __ load_heap_oop(rax_oop, from_element_addr); // load the oop |
304 | 2367 __ testptr(rax_oop, rax_oop); |
0 | 2368 __ jcc(Assembler::zero, L_store_element); |
2369 | |
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2370 __ load_klass(r11_klass, rax_oop);// query the object klass |
0 | 2371 generate_type_check(r11_klass, ckoff, ckval, L_store_element); |
2372 // ======== end loop ======== | |
2373 | |
2374 // It was a real error; we must depend on the caller to finish the job. | |
2375 // Register rdx = -1 * number of *remaining* oops, r14 = *total* oops. | |
2376 // Emit GC store barriers for the oops we have copied (r14 + rdx), | |
2377 // and report their number to the caller. | |
2378 assert_different_registers(rax, r14_length, count, to, end_to, rcx); | |
304 | 2379 __ lea(end_to, to_element_addr); |
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2380 __ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
362 | 2381 gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
304 | 2382 __ movptr(rax, r14_length); // original oops |
2383 __ addptr(rax, count); // K = (original - remaining) oops | |
2384 __ notptr(rax); // report (-1^K) to caller | |
0 | 2385 __ jmp(L_done); |
2386 | |
2387 // Come here on success only. | |
2388 __ BIND(L_do_card_marks); | |
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2389 __ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
362 | 2390 gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
304 | 2391 __ xorptr(rax, rax); // return 0 on success |
0 | 2392 |
2393 // Common exit point (success or failure). | |
2394 __ BIND(L_done); | |
304 | 2395 __ movptr(r13, Address(rsp, saved_r13_offset * wordSize)); |
2396 __ movptr(r14, Address(rsp, saved_r14_offset * wordSize)); | |
0 | 2397 restore_arg_regs(); |
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2398 inc_counter_np(SharedRuntime::_checkcast_array_copy_ctr); // Update counter after rscratch1 is free |
0 | 2399 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2400 __ ret(0); | |
2401 | |
2402 return start; | |
2403 } | |
2404 | |
2405 // | |
2406 // Generate 'unsafe' array copy stub | |
2407 // Though just as safe as the other stubs, it takes an unscaled | |
2408 // size_t argument instead of an element count. | |
2409 // | |
2410 // Input: | |
2411 // c_rarg0 - source array address | |
2412 // c_rarg1 - destination array address | |
2413 // c_rarg2 - byte count, treated as ssize_t, can be zero | |
2414 // | |
2415 // Examines the alignment of the operands and dispatches | |
2416 // to a long, int, short, or byte copy loop. | |
2417 // | |
2313
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2418 address generate_unsafe_copy(const char *name, |
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2419 address byte_copy_entry, address short_copy_entry, |
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2420 address int_copy_entry, address long_copy_entry) { |
0 | 2421 |
2422 Label L_long_aligned, L_int_aligned, L_short_aligned; | |
2423 | |
2424 // Input registers (before setup_arg_regs) | |
2425 const Register from = c_rarg0; // source array address | |
2426 const Register to = c_rarg1; // destination array address | |
2427 const Register size = c_rarg2; // byte count (size_t) | |
2428 | |
2429 // Register used as a temp | |
2430 const Register bits = rax; // test copy of low bits | |
2431 | |
2432 __ align(CodeEntryAlignment); | |
2433 StubCodeMark mark(this, "StubRoutines", name); | |
2434 address start = __ pc(); | |
2435 | |
2436 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2437 | |
2438 // bump this on entry, not on exit: | |
2439 inc_counter_np(SharedRuntime::_unsafe_array_copy_ctr); | |
2440 | |
304 | 2441 __ mov(bits, from); |
2442 __ orptr(bits, to); | |
2443 __ orptr(bits, size); | |
0 | 2444 |
2445 __ testb(bits, BytesPerLong-1); | |
2446 __ jccb(Assembler::zero, L_long_aligned); | |
2447 | |
2448 __ testb(bits, BytesPerInt-1); | |
2449 __ jccb(Assembler::zero, L_int_aligned); | |
2450 | |
2451 __ testb(bits, BytesPerShort-1); | |
2452 __ jump_cc(Assembler::notZero, RuntimeAddress(byte_copy_entry)); | |
2453 | |
2454 __ BIND(L_short_aligned); | |
304 | 2455 __ shrptr(size, LogBytesPerShort); // size => short_count |
0 | 2456 __ jump(RuntimeAddress(short_copy_entry)); |
2457 | |
2458 __ BIND(L_int_aligned); | |
304 | 2459 __ shrptr(size, LogBytesPerInt); // size => int_count |
0 | 2460 __ jump(RuntimeAddress(int_copy_entry)); |
2461 | |
2462 __ BIND(L_long_aligned); | |
304 | 2463 __ shrptr(size, LogBytesPerLong); // size => qword_count |
0 | 2464 __ jump(RuntimeAddress(long_copy_entry)); |
2465 | |
2466 return start; | |
2467 } | |
2468 | |
2469 // Perform range checks on the proposed arraycopy. | |
2470 // Kills temp, but nothing else. | |
2471 // Also, clean the sign bits of src_pos and dst_pos. | |
2472 void arraycopy_range_checks(Register src, // source array oop (c_rarg0) | |
2473 Register src_pos, // source position (c_rarg1) | |
2474 Register dst, // destination array oo (c_rarg2) | |
2475 Register dst_pos, // destination position (c_rarg3) | |
2476 Register length, | |
2477 Register temp, | |
2478 Label& L_failed) { | |
2479 BLOCK_COMMENT("arraycopy_range_checks:"); | |
2480 | |
2481 // if (src_pos + length > arrayOop(src)->length()) FAIL; | |
2482 __ movl(temp, length); | |
2483 __ addl(temp, src_pos); // src_pos + length | |
2484 __ cmpl(temp, Address(src, arrayOopDesc::length_offset_in_bytes())); | |
2485 __ jcc(Assembler::above, L_failed); | |
2486 | |
2487 // if (dst_pos + length > arrayOop(dst)->length()) FAIL; | |
2488 __ movl(temp, length); | |
2489 __ addl(temp, dst_pos); // dst_pos + length | |
2490 __ cmpl(temp, Address(dst, arrayOopDesc::length_offset_in_bytes())); | |
2491 __ jcc(Assembler::above, L_failed); | |
2492 | |
2493 // Have to clean up high 32-bits of 'src_pos' and 'dst_pos'. | |
2494 // Move with sign extension can be used since they are positive. | |
2495 __ movslq(src_pos, src_pos); | |
2496 __ movslq(dst_pos, dst_pos); | |
2497 | |
2498 BLOCK_COMMENT("arraycopy_range_checks done"); | |
2499 } | |
2500 | |
2501 // | |
2502 // Generate generic array copy stubs | |
2503 // | |
2504 // Input: | |
2505 // c_rarg0 - src oop | |
2506 // c_rarg1 - src_pos (32-bits) | |
2507 // c_rarg2 - dst oop | |
2508 // c_rarg3 - dst_pos (32-bits) | |
2509 // not Win64 | |
2510 // c_rarg4 - element count (32-bits) | |
2511 // Win64 | |
2512 // rsp+40 - element count (32-bits) | |
2513 // | |
2514 // Output: | |
2515 // rax == 0 - success | |
2516 // rax == -1^K - failure, where K is partial transfer count | |
2517 // | |
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2518 address generate_generic_copy(const char *name, |
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2519 address byte_copy_entry, address short_copy_entry, |
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2520 address int_copy_entry, address oop_copy_entry, |
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2521 address long_copy_entry, address checkcast_copy_entry) { |
0 | 2522 |
2523 Label L_failed, L_failed_0, L_objArray; | |
2524 Label L_copy_bytes, L_copy_shorts, L_copy_ints, L_copy_longs; | |
2525 | |
2526 // Input registers | |
2527 const Register src = c_rarg0; // source array oop | |
2528 const Register src_pos = c_rarg1; // source position | |
2529 const Register dst = c_rarg2; // destination array oop | |
2530 const Register dst_pos = c_rarg3; // destination position | |
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2531 #ifndef _WIN64 |
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2532 const Register length = c_rarg4; |
0 | 2533 #else |
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2534 const Address length(rsp, 6 * wordSize); // elements count is on stack on Win64 |
0 | 2535 #endif |
2536 | |
2537 { int modulus = CodeEntryAlignment; | |
2538 int target = modulus - 5; // 5 = sizeof jmp(L_failed) | |
2539 int advance = target - (__ offset() % modulus); | |
2540 if (advance < 0) advance += modulus; | |
2541 if (advance > 0) __ nop(advance); | |
2542 } | |
2543 StubCodeMark mark(this, "StubRoutines", name); | |
2544 | |
2545 // Short-hop target to L_failed. Makes for denser prologue code. | |
2546 __ BIND(L_failed_0); | |
2547 __ jmp(L_failed); | |
2548 assert(__ offset() % CodeEntryAlignment == 0, "no further alignment needed"); | |
2549 | |
2550 __ align(CodeEntryAlignment); | |
2551 address start = __ pc(); | |
2552 | |
2553 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
2554 | |
2555 // bump this on entry, not on exit: | |
2556 inc_counter_np(SharedRuntime::_generic_array_copy_ctr); | |
2557 | |
2558 //----------------------------------------------------------------------- | |
2559 // Assembler stub will be used for this call to arraycopy | |
2560 // if the following conditions are met: | |
2561 // | |
2562 // (1) src and dst must not be null. | |
2563 // (2) src_pos must not be negative. | |
2564 // (3) dst_pos must not be negative. | |
2565 // (4) length must not be negative. | |
2566 // (5) src klass and dst klass should be the same and not NULL. | |
2567 // (6) src and dst should be arrays. | |
2568 // (7) src_pos + length must not exceed length of src. | |
2569 // (8) dst_pos + length must not exceed length of dst. | |
2570 // | |
2571 | |
2572 // if (src == NULL) return -1; | |
304 | 2573 __ testptr(src, src); // src oop |
0 | 2574 size_t j1off = __ offset(); |
2575 __ jccb(Assembler::zero, L_failed_0); | |
2576 | |
2577 // if (src_pos < 0) return -1; | |
2578 __ testl(src_pos, src_pos); // src_pos (32-bits) | |
2579 __ jccb(Assembler::negative, L_failed_0); | |
2580 | |
2581 // if (dst == NULL) return -1; | |
304 | 2582 __ testptr(dst, dst); // dst oop |
0 | 2583 __ jccb(Assembler::zero, L_failed_0); |
2584 | |
2585 // if (dst_pos < 0) return -1; | |
2586 __ testl(dst_pos, dst_pos); // dst_pos (32-bits) | |
2587 size_t j4off = __ offset(); | |
2588 __ jccb(Assembler::negative, L_failed_0); | |
2589 | |
2590 // The first four tests are very dense code, | |
2591 // but not quite dense enough to put four | |
2592 // jumps in a 16-byte instruction fetch buffer. | |
2593 // That's good, because some branch predicters | |
2594 // do not like jumps so close together. | |
2595 // Make sure of this. | |
2596 guarantee(((j1off ^ j4off) & ~15) != 0, "I$ line of 1st & 4th jumps"); | |
2597 | |
2598 // registers used as temp | |
2599 const Register r11_length = r11; // elements count to copy | |
2600 const Register r10_src_klass = r10; // array klass | |
2601 | |
2602 // if (length < 0) return -1; | |
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2603 __ movl(r11_length, length); // length (elements count, 32-bits value) |
0 | 2604 __ testl(r11_length, r11_length); |
2605 __ jccb(Assembler::negative, L_failed_0); | |
2606 | |
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2607 __ load_klass(r10_src_klass, src); |
0 | 2608 #ifdef ASSERT |
2609 // assert(src->klass() != NULL); | |
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2610 { |
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2611 BLOCK_COMMENT("assert klasses not null {"); |
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2612 Label L1, L2; |
304 | 2613 __ testptr(r10_src_klass, r10_src_klass); |
0 | 2614 __ jcc(Assembler::notZero, L2); // it is broken if klass is NULL |
2615 __ bind(L1); | |
2616 __ stop("broken null klass"); | |
2617 __ bind(L2); | |
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2618 __ load_klass(rax, dst); |
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2619 __ cmpq(rax, 0); |
0 | 2620 __ jcc(Assembler::equal, L1); // this would be broken also |
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2621 BLOCK_COMMENT("} assert klasses not null done"); |
0 | 2622 } |
2623 #endif | |
2624 | |
2625 // Load layout helper (32-bits) | |
2626 // | |
2627 // |array_tag| | header_size | element_type | |log2_element_size| | |
2628 // 32 30 24 16 8 2 0 | |
2629 // | |
2630 // array_tag: typeArray = 0x3, objArray = 0x2, non-array = 0x0 | |
2631 // | |
2632 | |
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2633 const int lh_offset = in_bytes(Klass::layout_helper_offset()); |
0 | 2634 |
2635 // Handle objArrays completely differently... | |
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2636 const jint objArray_lh = Klass::array_layout_helper(T_OBJECT); |
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2637 __ cmpl(Address(r10_src_klass, lh_offset), objArray_lh); |
0 | 2638 __ jcc(Assembler::equal, L_objArray); |
2639 | |
2640 // if (src->klass() != dst->klass()) return -1; | |
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2641 __ load_klass(rax, dst); |
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2642 __ cmpq(r10_src_klass, rax); |
0 | 2643 __ jcc(Assembler::notEqual, L_failed); |
2644 | |
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2645 const Register rax_lh = rax; // layout helper |
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2646 __ movl(rax_lh, Address(r10_src_klass, lh_offset)); |
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2647 |
0 | 2648 // if (!src->is_Array()) return -1; |
2649 __ cmpl(rax_lh, Klass::_lh_neutral_value); | |
2650 __ jcc(Assembler::greaterEqual, L_failed); | |
2651 | |
2652 // At this point, it is known to be a typeArray (array_tag 0x3). | |
2653 #ifdef ASSERT | |
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2654 { |
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2655 BLOCK_COMMENT("assert primitive array {"); |
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2656 Label L; |
0 | 2657 __ cmpl(rax_lh, (Klass::_lh_array_tag_type_value << Klass::_lh_array_tag_shift)); |
2658 __ jcc(Assembler::greaterEqual, L); | |
2659 __ stop("must be a primitive array"); | |
2660 __ bind(L); | |
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2661 BLOCK_COMMENT("} assert primitive array done"); |
0 | 2662 } |
2663 #endif | |
2664 | |
2665 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2666 r10, L_failed); | |
2667 | |
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2668 // TypeArrayKlass |
0 | 2669 // |
2670 // src_addr = (src + array_header_in_bytes()) + (src_pos << log2elemsize); | |
2671 // dst_addr = (dst + array_header_in_bytes()) + (dst_pos << log2elemsize); | |
2672 // | |
2673 | |
2674 const Register r10_offset = r10; // array offset | |
2675 const Register rax_elsize = rax_lh; // element size | |
2676 | |
2677 __ movl(r10_offset, rax_lh); | |
2678 __ shrl(r10_offset, Klass::_lh_header_size_shift); | |
304 | 2679 __ andptr(r10_offset, Klass::_lh_header_size_mask); // array_offset |
2680 __ addptr(src, r10_offset); // src array offset | |
2681 __ addptr(dst, r10_offset); // dst array offset | |
0 | 2682 BLOCK_COMMENT("choose copy loop based on element size"); |
2683 __ andl(rax_lh, Klass::_lh_log2_element_size_mask); // rax_lh -> rax_elsize | |
2684 | |
2685 // next registers should be set before the jump to corresponding stub | |
2686 const Register from = c_rarg0; // source array address | |
2687 const Register to = c_rarg1; // destination array address | |
2688 const Register count = c_rarg2; // elements count | |
2689 | |
2690 // 'from', 'to', 'count' registers should be set in such order | |
2691 // since they are the same as 'src', 'src_pos', 'dst'. | |
2692 | |
2693 __ BIND(L_copy_bytes); | |
2694 __ cmpl(rax_elsize, 0); | |
2695 __ jccb(Assembler::notEqual, L_copy_shorts); | |
304 | 2696 __ lea(from, Address(src, src_pos, Address::times_1, 0));// src_addr |
2697 __ lea(to, Address(dst, dst_pos, Address::times_1, 0));// dst_addr | |
2698 __ movl2ptr(count, r11_length); // length | |
0 | 2699 __ jump(RuntimeAddress(byte_copy_entry)); |
2700 | |
2701 __ BIND(L_copy_shorts); | |
2702 __ cmpl(rax_elsize, LogBytesPerShort); | |
2703 __ jccb(Assembler::notEqual, L_copy_ints); | |
304 | 2704 __ lea(from, Address(src, src_pos, Address::times_2, 0));// src_addr |
2705 __ lea(to, Address(dst, dst_pos, Address::times_2, 0));// dst_addr | |
2706 __ movl2ptr(count, r11_length); // length | |
0 | 2707 __ jump(RuntimeAddress(short_copy_entry)); |
2708 | |
2709 __ BIND(L_copy_ints); | |
2710 __ cmpl(rax_elsize, LogBytesPerInt); | |
2711 __ jccb(Assembler::notEqual, L_copy_longs); | |
304 | 2712 __ lea(from, Address(src, src_pos, Address::times_4, 0));// src_addr |
2713 __ lea(to, Address(dst, dst_pos, Address::times_4, 0));// dst_addr | |
2714 __ movl2ptr(count, r11_length); // length | |
0 | 2715 __ jump(RuntimeAddress(int_copy_entry)); |
2716 | |
2717 __ BIND(L_copy_longs); | |
2718 #ifdef ASSERT | |
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2719 { |
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2720 BLOCK_COMMENT("assert long copy {"); |
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2721 Label L; |
0 | 2722 __ cmpl(rax_elsize, LogBytesPerLong); |
2723 __ jcc(Assembler::equal, L); | |
2724 __ stop("must be long copy, but elsize is wrong"); | |
2725 __ bind(L); | |
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2726 BLOCK_COMMENT("} assert long copy done"); |
0 | 2727 } |
2728 #endif | |
304 | 2729 __ lea(from, Address(src, src_pos, Address::times_8, 0));// src_addr |
2730 __ lea(to, Address(dst, dst_pos, Address::times_8, 0));// dst_addr | |
2731 __ movl2ptr(count, r11_length); // length | |
0 | 2732 __ jump(RuntimeAddress(long_copy_entry)); |
2733 | |
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|
2734 // ObjArrayKlass |
0 | 2735 __ BIND(L_objArray); |
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2736 // live at this point: r10_src_klass, r11_length, src[_pos], dst[_pos] |
0 | 2737 |
2738 Label L_plain_copy, L_checkcast_copy; | |
2739 // test array classes for subtyping | |
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diff
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2740 __ load_klass(rax, dst); |
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|
2741 __ cmpq(r10_src_klass, rax); // usual case is exact equality |
0 | 2742 __ jcc(Assembler::notEqual, L_checkcast_copy); |
2743 | |
2744 // Identically typed arrays can be copied without element-wise checks. | |
2745 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2746 r10, L_failed); | |
2747 | |
304 | 2748 __ lea(from, Address(src, src_pos, TIMES_OOP, |
0 | 2749 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // src_addr |
304 | 2750 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
2751 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // dst_addr | |
2752 __ movl2ptr(count, r11_length); // length | |
0 | 2753 __ BIND(L_plain_copy); |
2754 __ jump(RuntimeAddress(oop_copy_entry)); | |
2755 | |
2756 __ BIND(L_checkcast_copy); | |
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|
2757 // live at this point: r10_src_klass, r11_length, rax (dst_klass) |
0 | 2758 { |
2759 // Before looking at dst.length, make sure dst is also an objArray. | |
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|
2760 __ cmpl(Address(rax, lh_offset), objArray_lh); |
0 | 2761 __ jcc(Assembler::notEqual, L_failed); |
2762 | |
2763 // It is safe to examine both src.length and dst.length. | |
2764 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
2765 rax, L_failed); | |
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|
2766 |
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|
2767 const Register r11_dst_klass = r11; |
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2768 __ load_klass(r11_dst_klass, dst); // reload |
0 | 2769 |
2770 // Marshal the base address arguments now, freeing registers. | |
304 | 2771 __ lea(from, Address(src, src_pos, TIMES_OOP, |
0 | 2772 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
304 | 2773 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
0 | 2774 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
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2775 __ movl(count, length); // length (reloaded) |
0 | 2776 Register sco_temp = c_rarg3; // this register is free now |
2777 assert_different_registers(from, to, count, sco_temp, | |
2778 r11_dst_klass, r10_src_klass); | |
2779 assert_clean_int(count, sco_temp); | |
2780 | |
2781 // Generate the type check. | |
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
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|
2782 const int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
0 | 2783 __ movl(sco_temp, Address(r11_dst_klass, sco_offset)); |
2784 assert_clean_int(sco_temp, rax); | |
2785 generate_type_check(r10_src_klass, sco_temp, r11_dst_klass, L_plain_copy); | |
2786 | |
6831
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2787 // Fetch destination element klass from the ObjArrayKlass header. |
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2788 int ek_offset = in_bytes(ObjArrayKlass::element_klass_offset()); |
304 | 2789 __ movptr(r11_dst_klass, Address(r11_dst_klass, ek_offset)); |
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2790 __ movl( sco_temp, Address(r11_dst_klass, sco_offset)); |
0 | 2791 assert_clean_int(sco_temp, rax); |
2792 | |
2793 // the checkcast_copy loop needs two extra arguments: | |
2794 assert(c_rarg3 == sco_temp, "#3 already in place"); | |
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2795 // Set up arguments for checkcast_copy_entry. |
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2796 setup_arg_regs(4); |
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2797 __ movptr(r8, r11_dst_klass); // dst.klass.element_klass, r8 is c_rarg4 on Linux/Solaris |
0 | 2798 __ jump(RuntimeAddress(checkcast_copy_entry)); |
2799 } | |
2800 | |
2801 __ BIND(L_failed); | |
304 | 2802 __ xorptr(rax, rax); |
2803 __ notptr(rax); // return -1 | |
0 | 2804 __ leave(); // required for proper stackwalking of RuntimeStub frame |
2805 __ ret(0); | |
2806 | |
2807 return start; | |
2808 } | |
2809 | |
2810 void generate_arraycopy_stubs() { | |
2313
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|
2811 address entry; |
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2812 address entry_jbyte_arraycopy; |
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2813 address entry_jshort_arraycopy; |
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|
2814 address entry_jint_arraycopy; |
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|
2815 address entry_oop_arraycopy; |
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|
2816 address entry_jlong_arraycopy; |
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|
2817 address entry_checkcast_arraycopy; |
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|
2818 |
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2819 StubRoutines::_jbyte_disjoint_arraycopy = generate_disjoint_byte_copy(false, &entry, |
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2820 "jbyte_disjoint_arraycopy"); |
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2821 StubRoutines::_jbyte_arraycopy = generate_conjoint_byte_copy(false, entry, &entry_jbyte_arraycopy, |
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|
2822 "jbyte_arraycopy"); |
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|
2823 |
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2824 StubRoutines::_jshort_disjoint_arraycopy = generate_disjoint_short_copy(false, &entry, |
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|
2825 "jshort_disjoint_arraycopy"); |
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|
2826 StubRoutines::_jshort_arraycopy = generate_conjoint_short_copy(false, entry, &entry_jshort_arraycopy, |
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|
2827 "jshort_arraycopy"); |
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|
2828 |
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|
2829 StubRoutines::_jint_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, false, &entry, |
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|
2830 "jint_disjoint_arraycopy"); |
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|
2831 StubRoutines::_jint_arraycopy = generate_conjoint_int_oop_copy(false, false, entry, |
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|
2832 &entry_jint_arraycopy, "jint_arraycopy"); |
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|
2833 |
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|
2834 StubRoutines::_jlong_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, false, &entry, |
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|
2835 "jlong_disjoint_arraycopy"); |
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|
2836 StubRoutines::_jlong_arraycopy = generate_conjoint_long_oop_copy(false, false, entry, |
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|
2837 &entry_jlong_arraycopy, "jlong_arraycopy"); |
0 | 2838 |
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2839 |
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|
2840 if (UseCompressedOops) { |
2313
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|
2841 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, true, &entry, |
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|
2842 "oop_disjoint_arraycopy"); |
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|
2843 StubRoutines::_oop_arraycopy = generate_conjoint_int_oop_copy(false, true, entry, |
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diff
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|
2844 &entry_oop_arraycopy, "oop_arraycopy"); |
2324 | 2845 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_int_oop_copy(false, true, &entry, |
2846 "oop_disjoint_arraycopy_uninit", | |
2847 /*dest_uninitialized*/true); | |
2848 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_int_oop_copy(false, true, entry, | |
2849 NULL, "oop_arraycopy_uninit", | |
2850 /*dest_uninitialized*/true); | |
113
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diff
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|
2851 } else { |
2313
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|
2852 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, true, &entry, |
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|
2853 "oop_disjoint_arraycopy"); |
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|
2854 StubRoutines::_oop_arraycopy = generate_conjoint_long_oop_copy(false, true, entry, |
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diff
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|
2855 &entry_oop_arraycopy, "oop_arraycopy"); |
2324 | 2856 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_long_oop_copy(false, true, &entry, |
2857 "oop_disjoint_arraycopy_uninit", | |
2858 /*dest_uninitialized*/true); | |
2859 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_long_oop_copy(false, true, entry, | |
2860 NULL, "oop_arraycopy_uninit", | |
2861 /*dest_uninitialized*/true); | |
113
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|
2862 } |
0 | 2863 |
2324 | 2864 StubRoutines::_checkcast_arraycopy = generate_checkcast_copy("checkcast_arraycopy", &entry_checkcast_arraycopy); |
2865 StubRoutines::_checkcast_arraycopy_uninit = generate_checkcast_copy("checkcast_arraycopy_uninit", NULL, | |
2866 /*dest_uninitialized*/true); | |
2867 | |
2313
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|
2868 StubRoutines::_unsafe_arraycopy = generate_unsafe_copy("unsafe_arraycopy", |
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7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
2869 entry_jbyte_arraycopy, |
d89a22843c62
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diff
changeset
|
2870 entry_jshort_arraycopy, |
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diff
changeset
|
2871 entry_jint_arraycopy, |
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diff
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|
2872 entry_jlong_arraycopy); |
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diff
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|
2873 StubRoutines::_generic_arraycopy = generate_generic_copy("generic_arraycopy", |
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7020521: arraycopy stubs place prebarriers incorrectly
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2006
diff
changeset
|
2874 entry_jbyte_arraycopy, |
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diff
changeset
|
2875 entry_jshort_arraycopy, |
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diff
changeset
|
2876 entry_jint_arraycopy, |
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diff
changeset
|
2877 entry_oop_arraycopy, |
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diff
changeset
|
2878 entry_jlong_arraycopy, |
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|
2879 entry_checkcast_arraycopy); |
0 | 2880 |
1763 | 2881 StubRoutines::_jbyte_fill = generate_fill(T_BYTE, false, "jbyte_fill"); |
2882 StubRoutines::_jshort_fill = generate_fill(T_SHORT, false, "jshort_fill"); | |
2883 StubRoutines::_jint_fill = generate_fill(T_INT, false, "jint_fill"); | |
2884 StubRoutines::_arrayof_jbyte_fill = generate_fill(T_BYTE, true, "arrayof_jbyte_fill"); | |
2885 StubRoutines::_arrayof_jshort_fill = generate_fill(T_SHORT, true, "arrayof_jshort_fill"); | |
2886 StubRoutines::_arrayof_jint_fill = generate_fill(T_INT, true, "arrayof_jint_fill"); | |
2887 | |
0 | 2888 // We don't generate specialized code for HeapWord-aligned source |
2889 // arrays, so just use the code we've already generated | |
2890 StubRoutines::_arrayof_jbyte_disjoint_arraycopy = StubRoutines::_jbyte_disjoint_arraycopy; | |
2891 StubRoutines::_arrayof_jbyte_arraycopy = StubRoutines::_jbyte_arraycopy; | |
2892 | |
2893 StubRoutines::_arrayof_jshort_disjoint_arraycopy = StubRoutines::_jshort_disjoint_arraycopy; | |
2894 StubRoutines::_arrayof_jshort_arraycopy = StubRoutines::_jshort_arraycopy; | |
2895 | |
2896 StubRoutines::_arrayof_jint_disjoint_arraycopy = StubRoutines::_jint_disjoint_arraycopy; | |
2897 StubRoutines::_arrayof_jint_arraycopy = StubRoutines::_jint_arraycopy; | |
2898 | |
2899 StubRoutines::_arrayof_jlong_disjoint_arraycopy = StubRoutines::_jlong_disjoint_arraycopy; | |
2900 StubRoutines::_arrayof_jlong_arraycopy = StubRoutines::_jlong_arraycopy; | |
2901 | |
2902 StubRoutines::_arrayof_oop_disjoint_arraycopy = StubRoutines::_oop_disjoint_arraycopy; | |
2903 StubRoutines::_arrayof_oop_arraycopy = StubRoutines::_oop_arraycopy; | |
2324 | 2904 |
2905 StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = StubRoutines::_oop_disjoint_arraycopy_uninit; | |
2906 StubRoutines::_arrayof_oop_arraycopy_uninit = StubRoutines::_oop_arraycopy_uninit; | |
0 | 2907 } |
2908 | |
1174
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|
2909 void generate_math_stubs() { |
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|
2910 { |
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|
2911 StubCodeMark mark(this, "StubRoutines", "log"); |
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|
2912 StubRoutines::_intrinsic_log = (double (*)(double)) __ pc(); |
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|
2913 |
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|
2914 __ subq(rsp, 8); |
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|
2915 __ movdbl(Address(rsp, 0), xmm0); |
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|
2916 __ fld_d(Address(rsp, 0)); |
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|
2917 __ flog(); |
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|
2918 __ fstp_d(Address(rsp, 0)); |
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|
2919 __ movdbl(xmm0, Address(rsp, 0)); |
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|
2920 __ addq(rsp, 8); |
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|
2921 __ ret(0); |
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|
2922 } |
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|
2923 { |
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|
2924 StubCodeMark mark(this, "StubRoutines", "log10"); |
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parents:
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|
2925 StubRoutines::_intrinsic_log10 = (double (*)(double)) __ pc(); |
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|
2926 |
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|
2927 __ subq(rsp, 8); |
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diff
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|
2928 __ movdbl(Address(rsp, 0), xmm0); |
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diff
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|
2929 __ fld_d(Address(rsp, 0)); |
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parents:
1108
diff
changeset
|
2930 __ flog10(); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2931 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2932 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2933 __ addq(rsp, 8); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2934 __ ret(0); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2935 } |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2936 { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2937 StubCodeMark mark(this, "StubRoutines", "sin"); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2938 StubRoutines::_intrinsic_sin = (double (*)(double)) __ pc(); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2939 |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2940 __ subq(rsp, 8); |
ddb7834449d0
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parents:
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diff
changeset
|
2941 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2942 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
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parents:
1108
diff
changeset
|
2943 __ trigfunc('s'); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2944 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
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diff
changeset
|
2945 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1108
diff
changeset
|
2946 __ addq(rsp, 8); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2947 __ ret(0); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2948 } |
ddb7834449d0
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parents:
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diff
changeset
|
2949 { |
ddb7834449d0
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parents:
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diff
changeset
|
2950 StubCodeMark mark(this, "StubRoutines", "cos"); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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diff
changeset
|
2951 StubRoutines::_intrinsic_cos = (double (*)(double)) __ pc(); |
ddb7834449d0
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parents:
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diff
changeset
|
2952 |
ddb7834449d0
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parents:
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diff
changeset
|
2953 __ subq(rsp, 8); |
ddb7834449d0
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parents:
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diff
changeset
|
2954 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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diff
changeset
|
2955 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
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parents:
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diff
changeset
|
2956 __ trigfunc('c'); |
ddb7834449d0
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parents:
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diff
changeset
|
2957 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
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never
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diff
changeset
|
2958 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
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parents:
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diff
changeset
|
2959 __ addq(rsp, 8); |
ddb7834449d0
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parents:
1108
diff
changeset
|
2960 __ ret(0); |
ddb7834449d0
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diff
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|
2961 } |
ddb7834449d0
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parents:
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diff
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|
2962 { |
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diff
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|
2963 StubCodeMark mark(this, "StubRoutines", "tan"); |
ddb7834449d0
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parents:
1108
diff
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|
2964 StubRoutines::_intrinsic_tan = (double (*)(double)) __ pc(); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1108
diff
changeset
|
2965 |
ddb7834449d0
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parents:
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diff
changeset
|
2966 __ subq(rsp, 8); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2967 __ movdbl(Address(rsp, 0), xmm0); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1108
diff
changeset
|
2968 __ fld_d(Address(rsp, 0)); |
ddb7834449d0
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never
parents:
1108
diff
changeset
|
2969 __ trigfunc('t'); |
ddb7834449d0
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parents:
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diff
changeset
|
2970 __ fstp_d(Address(rsp, 0)); |
ddb7834449d0
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never
parents:
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diff
changeset
|
2971 __ movdbl(xmm0, Address(rsp, 0)); |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1108
diff
changeset
|
2972 __ addq(rsp, 8); |
ddb7834449d0
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diff
changeset
|
2973 __ ret(0); |
ddb7834449d0
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diff
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|
2974 } |
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2975 { |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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parents:
5903
diff
changeset
|
2976 StubCodeMark mark(this, "StubRoutines", "exp"); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2977 StubRoutines::_intrinsic_exp = (double (*)(double)) __ pc(); |
6759698e3140
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roland
parents:
5903
diff
changeset
|
2978 |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2979 __ subq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2980 __ movdbl(Address(rsp, 0), xmm0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2981 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2982 __ exp_with_fallback(0); |
6759698e3140
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roland
parents:
5903
diff
changeset
|
2983 __ fstp_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2984 __ movdbl(xmm0, Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2985 __ addq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2986 __ ret(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2987 } |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2988 { |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2989 StubCodeMark mark(this, "StubRoutines", "pow"); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2990 StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc(); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2991 |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2992 __ subq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2993 __ movdbl(Address(rsp, 0), xmm1); |
6759698e3140
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roland
parents:
5903
diff
changeset
|
2994 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2995 __ movdbl(Address(rsp, 0), xmm0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2996 __ fld_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2997 __ pow_with_fallback(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2998 __ fstp_d(Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
2999 __ movdbl(xmm0, Address(rsp, 0)); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
3000 __ addq(rsp, 8); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
3001 __ ret(0); |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
5903
diff
changeset
|
3002 } |
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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diff
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|
3003 } |
ddb7834449d0
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diff
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|
3004 |
6894 | 3005 // AES intrinsic stubs |
3006 enum {AESBlockSize = 16}; | |
3007 | |
3008 address generate_key_shuffle_mask() { | |
3009 __ align(16); | |
3010 StubCodeMark mark(this, "StubRoutines", "key_shuffle_mask"); | |
3011 address start = __ pc(); | |
3012 __ emit_data64( 0x0405060700010203, relocInfo::none ); | |
3013 __ emit_data64( 0x0c0d0e0f08090a0b, relocInfo::none ); | |
3014 return start; | |
3015 } | |
3016 | |
3017 // Utility routine for loading a 128-bit key word in little endian format | |
3018 // can optionally specify that the shuffle mask is already in an xmmregister | |
3019 void load_key(XMMRegister xmmdst, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) { | |
3020 __ movdqu(xmmdst, Address(key, offset)); | |
3021 if (xmm_shuf_mask != NULL) { | |
3022 __ pshufb(xmmdst, xmm_shuf_mask); | |
3023 } else { | |
3024 __ pshufb(xmmdst, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3025 } | |
3026 } | |
3027 | |
3028 // Arguments: | |
3029 // | |
3030 // Inputs: | |
3031 // c_rarg0 - source byte array address | |
3032 // c_rarg1 - destination byte array address | |
3033 // c_rarg2 - K (key) in little endian int array | |
3034 // | |
3035 address generate_aescrypt_encryptBlock() { | |
7427 | 3036 assert(UseAES, "need AES instructions and misaligned SSE support"); |
6894 | 3037 __ align(CodeEntryAlignment); |
3038 StubCodeMark mark(this, "StubRoutines", "aescrypt_encryptBlock"); | |
3039 Label L_doLast; | |
3040 address start = __ pc(); | |
3041 | |
3042 const Register from = c_rarg0; // source array address | |
3043 const Register to = c_rarg1; // destination array address | |
3044 const Register key = c_rarg2; // key array address | |
3045 const Register keylen = rax; | |
3046 | |
3047 const XMMRegister xmm_result = xmm0; | |
7427 | 3048 const XMMRegister xmm_key_shuf_mask = xmm1; |
3049 // On win64 xmm6-xmm15 must be preserved so don't use them. | |
3050 const XMMRegister xmm_temp1 = xmm2; | |
3051 const XMMRegister xmm_temp2 = xmm3; | |
3052 const XMMRegister xmm_temp3 = xmm4; | |
3053 const XMMRegister xmm_temp4 = xmm5; | |
6894 | 3054 |
3055 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3056 | |
7427 | 3057 // keylen could be only {11, 13, 15} * 4 = {44, 52, 60} |
6894 | 3058 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); |
3059 | |
3060 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3061 __ movdqu(xmm_result, Address(from, 0)); // get 16 bytes of input | |
3062 | |
3063 // For encryption, the java expanded key ordering is just what we need | |
3064 // we don't know if the key is aligned, hence not using load-execute form | |
3065 | |
7427 | 3066 load_key(xmm_temp1, key, 0x00, xmm_key_shuf_mask); |
3067 __ pxor(xmm_result, xmm_temp1); | |
3068 | |
3069 load_key(xmm_temp1, key, 0x10, xmm_key_shuf_mask); | |
3070 load_key(xmm_temp2, key, 0x20, xmm_key_shuf_mask); | |
3071 load_key(xmm_temp3, key, 0x30, xmm_key_shuf_mask); | |
3072 load_key(xmm_temp4, key, 0x40, xmm_key_shuf_mask); | |
3073 | |
3074 __ aesenc(xmm_result, xmm_temp1); | |
3075 __ aesenc(xmm_result, xmm_temp2); | |
3076 __ aesenc(xmm_result, xmm_temp3); | |
3077 __ aesenc(xmm_result, xmm_temp4); | |
3078 | |
3079 load_key(xmm_temp1, key, 0x50, xmm_key_shuf_mask); | |
3080 load_key(xmm_temp2, key, 0x60, xmm_key_shuf_mask); | |
3081 load_key(xmm_temp3, key, 0x70, xmm_key_shuf_mask); | |
3082 load_key(xmm_temp4, key, 0x80, xmm_key_shuf_mask); | |
3083 | |
3084 __ aesenc(xmm_result, xmm_temp1); | |
3085 __ aesenc(xmm_result, xmm_temp2); | |
3086 __ aesenc(xmm_result, xmm_temp3); | |
3087 __ aesenc(xmm_result, xmm_temp4); | |
3088 | |
3089 load_key(xmm_temp1, key, 0x90, xmm_key_shuf_mask); | |
3090 load_key(xmm_temp2, key, 0xa0, xmm_key_shuf_mask); | |
3091 | |
3092 __ cmpl(keylen, 44); | |
3093 __ jccb(Assembler::equal, L_doLast); | |
3094 | |
3095 __ aesenc(xmm_result, xmm_temp1); | |
3096 __ aesenc(xmm_result, xmm_temp2); | |
3097 | |
3098 load_key(xmm_temp1, key, 0xb0, xmm_key_shuf_mask); | |
3099 load_key(xmm_temp2, key, 0xc0, xmm_key_shuf_mask); | |
3100 | |
3101 __ cmpl(keylen, 52); | |
3102 __ jccb(Assembler::equal, L_doLast); | |
3103 | |
3104 __ aesenc(xmm_result, xmm_temp1); | |
3105 __ aesenc(xmm_result, xmm_temp2); | |
3106 | |
3107 load_key(xmm_temp1, key, 0xd0, xmm_key_shuf_mask); | |
3108 load_key(xmm_temp2, key, 0xe0, xmm_key_shuf_mask); | |
6894 | 3109 |
3110 __ BIND(L_doLast); | |
7427 | 3111 __ aesenc(xmm_result, xmm_temp1); |
3112 __ aesenclast(xmm_result, xmm_temp2); | |
6894 | 3113 __ movdqu(Address(to, 0), xmm_result); // store the result |
3114 __ xorptr(rax, rax); // return 0 | |
3115 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3116 __ ret(0); | |
3117 | |
3118 return start; | |
3119 } | |
3120 | |
3121 | |
3122 // Arguments: | |
3123 // | |
3124 // Inputs: | |
3125 // c_rarg0 - source byte array address | |
3126 // c_rarg1 - destination byte array address | |
3127 // c_rarg2 - K (key) in little endian int array | |
3128 // | |
3129 address generate_aescrypt_decryptBlock() { | |
7427 | 3130 assert(UseAES, "need AES instructions and misaligned SSE support"); |
6894 | 3131 __ align(CodeEntryAlignment); |
3132 StubCodeMark mark(this, "StubRoutines", "aescrypt_decryptBlock"); | |
3133 Label L_doLast; | |
3134 address start = __ pc(); | |
3135 | |
3136 const Register from = c_rarg0; // source array address | |
3137 const Register to = c_rarg1; // destination array address | |
3138 const Register key = c_rarg2; // key array address | |
3139 const Register keylen = rax; | |
3140 | |
3141 const XMMRegister xmm_result = xmm0; | |
7427 | 3142 const XMMRegister xmm_key_shuf_mask = xmm1; |
3143 // On win64 xmm6-xmm15 must be preserved so don't use them. | |
3144 const XMMRegister xmm_temp1 = xmm2; | |
3145 const XMMRegister xmm_temp2 = xmm3; | |
3146 const XMMRegister xmm_temp3 = xmm4; | |
3147 const XMMRegister xmm_temp4 = xmm5; | |
6894 | 3148 |
3149 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3150 | |
7427 | 3151 // keylen could be only {11, 13, 15} * 4 = {44, 52, 60} |
6894 | 3152 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); |
3153 | |
3154 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3155 __ movdqu(xmm_result, Address(from, 0)); | |
3156 | |
3157 // for decryption java expanded key ordering is rotated one position from what we want | |
3158 // so we start from 0x10 here and hit 0x00 last | |
3159 // we don't know if the key is aligned, hence not using load-execute form | |
7427 | 3160 load_key(xmm_temp1, key, 0x10, xmm_key_shuf_mask); |
3161 load_key(xmm_temp2, key, 0x20, xmm_key_shuf_mask); | |
3162 load_key(xmm_temp3, key, 0x30, xmm_key_shuf_mask); | |
3163 load_key(xmm_temp4, key, 0x40, xmm_key_shuf_mask); | |
3164 | |
3165 __ pxor (xmm_result, xmm_temp1); | |
3166 __ aesdec(xmm_result, xmm_temp2); | |
3167 __ aesdec(xmm_result, xmm_temp3); | |
3168 __ aesdec(xmm_result, xmm_temp4); | |
3169 | |
3170 load_key(xmm_temp1, key, 0x50, xmm_key_shuf_mask); | |
3171 load_key(xmm_temp2, key, 0x60, xmm_key_shuf_mask); | |
3172 load_key(xmm_temp3, key, 0x70, xmm_key_shuf_mask); | |
3173 load_key(xmm_temp4, key, 0x80, xmm_key_shuf_mask); | |
3174 | |
3175 __ aesdec(xmm_result, xmm_temp1); | |
3176 __ aesdec(xmm_result, xmm_temp2); | |
3177 __ aesdec(xmm_result, xmm_temp3); | |
3178 __ aesdec(xmm_result, xmm_temp4); | |
3179 | |
3180 load_key(xmm_temp1, key, 0x90, xmm_key_shuf_mask); | |
3181 load_key(xmm_temp2, key, 0xa0, xmm_key_shuf_mask); | |
3182 load_key(xmm_temp3, key, 0x00, xmm_key_shuf_mask); | |
3183 | |
3184 __ cmpl(keylen, 44); | |
3185 __ jccb(Assembler::equal, L_doLast); | |
3186 | |
3187 __ aesdec(xmm_result, xmm_temp1); | |
3188 __ aesdec(xmm_result, xmm_temp2); | |
3189 | |
3190 load_key(xmm_temp1, key, 0xb0, xmm_key_shuf_mask); | |
3191 load_key(xmm_temp2, key, 0xc0, xmm_key_shuf_mask); | |
3192 | |
3193 __ cmpl(keylen, 52); | |
3194 __ jccb(Assembler::equal, L_doLast); | |
3195 | |
3196 __ aesdec(xmm_result, xmm_temp1); | |
3197 __ aesdec(xmm_result, xmm_temp2); | |
3198 | |
3199 load_key(xmm_temp1, key, 0xd0, xmm_key_shuf_mask); | |
3200 load_key(xmm_temp2, key, 0xe0, xmm_key_shuf_mask); | |
6894 | 3201 |
3202 __ BIND(L_doLast); | |
7427 | 3203 __ aesdec(xmm_result, xmm_temp1); |
3204 __ aesdec(xmm_result, xmm_temp2); | |
3205 | |
6894 | 3206 // for decryption the aesdeclast operation is always on key+0x00 |
7427 | 3207 __ aesdeclast(xmm_result, xmm_temp3); |
6894 | 3208 __ movdqu(Address(to, 0), xmm_result); // store the result |
3209 __ xorptr(rax, rax); // return 0 | |
3210 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3211 __ ret(0); | |
3212 | |
3213 return start; | |
3214 } | |
3215 | |
3216 | |
3217 // Arguments: | |
3218 // | |
3219 // Inputs: | |
3220 // c_rarg0 - source byte array address | |
3221 // c_rarg1 - destination byte array address | |
3222 // c_rarg2 - K (key) in little endian int array | |
3223 // c_rarg3 - r vector byte array address | |
3224 // c_rarg4 - input length | |
3225 // | |
3226 address generate_cipherBlockChaining_encryptAESCrypt() { | |
7427 | 3227 assert(UseAES, "need AES instructions and misaligned SSE support"); |
6894 | 3228 __ align(CodeEntryAlignment); |
3229 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_encryptAESCrypt"); | |
3230 address start = __ pc(); | |
3231 | |
3232 Label L_exit, L_key_192_256, L_key_256, L_loopTop_128, L_loopTop_192, L_loopTop_256; | |
3233 const Register from = c_rarg0; // source array address | |
3234 const Register to = c_rarg1; // destination array address | |
3235 const Register key = c_rarg2; // key array address | |
3236 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
3237 // and left with the results of the last encryption block | |
3238 #ifndef _WIN64 | |
3239 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
3240 #else | |
3241 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
3242 const Register len_reg = r10; // pick the first volatile windows register | |
3243 #endif | |
3244 const Register pos = rax; | |
3245 | |
3246 // xmm register assignments for the loops below | |
3247 const XMMRegister xmm_result = xmm0; | |
3248 const XMMRegister xmm_temp = xmm1; | |
3249 // keys 0-10 preloaded into xmm2-xmm12 | |
3250 const int XMM_REG_NUM_KEY_FIRST = 2; | |
7427 | 3251 const int XMM_REG_NUM_KEY_LAST = 15; |
6894 | 3252 const XMMRegister xmm_key0 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); |
7427 | 3253 const XMMRegister xmm_key10 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+10); |
3254 const XMMRegister xmm_key11 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+11); | |
3255 const XMMRegister xmm_key12 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+12); | |
3256 const XMMRegister xmm_key13 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+13); | |
6894 | 3257 |
3258 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3259 | |
3260 #ifdef _WIN64 | |
3261 // on win64, fill len_reg from stack position | |
3262 __ movl(len_reg, len_mem); | |
7427 | 3263 // save the xmm registers which must be preserved 6-15 |
6894 | 3264 __ subptr(rsp, -rsp_after_call_off * wordSize); |
3265 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3266 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
3267 } | |
3268 #endif | |
3269 | |
3270 const XMMRegister xmm_key_shuf_mask = xmm_temp; // used temporarily to swap key bytes up front | |
3271 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
7427 | 3272 // load up xmm regs xmm2 thru xmm12 with key 0x00 - 0xa0 |
3273 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x00; rnum <= XMM_REG_NUM_KEY_FIRST+10; rnum++) { | |
6894 | 3274 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); |
3275 offset += 0x10; | |
3276 } | |
3277 __ movdqu(xmm_result, Address(rvec, 0x00)); // initialize xmm_result with r vec | |
3278 | |
3279 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
3280 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3281 __ cmpl(rax, 44); | |
3282 __ jcc(Assembler::notEqual, L_key_192_256); | |
3283 | |
3284 // 128 bit code follows here | |
3285 __ movptr(pos, 0); | |
3286 __ align(OptoLoopAlignment); | |
7427 | 3287 |
6894 | 3288 __ BIND(L_loopTop_128); |
3289 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3290 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3291 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
7427 | 3292 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 9; rnum++) { |
6894 | 3293 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
3294 } | |
3295 __ aesenclast(xmm_result, xmm_key10); | |
3296 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3297 // no need to store r to memory until we exit | |
3298 __ addptr(pos, AESBlockSize); | |
3299 __ subptr(len_reg, AESBlockSize); | |
3300 __ jcc(Assembler::notEqual, L_loopTop_128); | |
3301 | |
3302 __ BIND(L_exit); | |
3303 __ movdqu(Address(rvec, 0), xmm_result); // final value of r stored in rvec of CipherBlockChaining object | |
3304 | |
3305 #ifdef _WIN64 | |
3306 // restore xmm regs belonging to calling function | |
3307 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3308 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
3309 } | |
3310 #endif | |
3311 __ movl(rax, 0); // return 0 (why?) | |
3312 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3313 __ ret(0); | |
3314 | |
3315 __ BIND(L_key_192_256); | |
3316 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
7427 | 3317 load_key(xmm_key11, key, 0xb0, xmm_key_shuf_mask); |
3318 load_key(xmm_key12, key, 0xc0, xmm_key_shuf_mask); | |
6894 | 3319 __ cmpl(rax, 52); |
3320 __ jcc(Assembler::notEqual, L_key_256); | |
3321 | |
3322 // 192-bit code follows here (could be changed to use more xmm registers) | |
3323 __ movptr(pos, 0); | |
3324 __ align(OptoLoopAlignment); | |
7427 | 3325 |
6894 | 3326 __ BIND(L_loopTop_192); |
3327 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3328 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3329 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
7427 | 3330 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 11; rnum++) { |
6894 | 3331 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
3332 } | |
7427 | 3333 __ aesenclast(xmm_result, xmm_key12); |
6894 | 3334 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
3335 // no need to store r to memory until we exit | |
3336 __ addptr(pos, AESBlockSize); | |
3337 __ subptr(len_reg, AESBlockSize); | |
3338 __ jcc(Assembler::notEqual, L_loopTop_192); | |
3339 __ jmp(L_exit); | |
3340 | |
3341 __ BIND(L_key_256); | |
3342 // 256-bit code follows here (could be changed to use more xmm registers) | |
7427 | 3343 load_key(xmm_key13, key, 0xd0, xmm_key_shuf_mask); |
6894 | 3344 __ movptr(pos, 0); |
3345 __ align(OptoLoopAlignment); | |
7427 | 3346 |
6894 | 3347 __ BIND(L_loopTop_256); |
3348 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
3349 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
3350 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
7427 | 3351 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 13; rnum++) { |
6894 | 3352 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
3353 } | |
3354 load_key(xmm_temp, key, 0xe0); | |
3355 __ aesenclast(xmm_result, xmm_temp); | |
3356 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3357 // no need to store r to memory until we exit | |
3358 __ addptr(pos, AESBlockSize); | |
3359 __ subptr(len_reg, AESBlockSize); | |
3360 __ jcc(Assembler::notEqual, L_loopTop_256); | |
3361 __ jmp(L_exit); | |
3362 | |
3363 return start; | |
3364 } | |
3365 | |
3366 | |
3367 | |
3368 // This is a version of CBC/AES Decrypt which does 4 blocks in a loop at a time | |
3369 // to hide instruction latency | |
3370 // | |
3371 // Arguments: | |
3372 // | |
3373 // Inputs: | |
3374 // c_rarg0 - source byte array address | |
3375 // c_rarg1 - destination byte array address | |
3376 // c_rarg2 - K (key) in little endian int array | |
3377 // c_rarg3 - r vector byte array address | |
3378 // c_rarg4 - input length | |
3379 // | |
3380 | |
3381 address generate_cipherBlockChaining_decryptAESCrypt_Parallel() { | |
7427 | 3382 assert(UseAES, "need AES instructions and misaligned SSE support"); |
6894 | 3383 __ align(CodeEntryAlignment); |
3384 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_decryptAESCrypt"); | |
3385 address start = __ pc(); | |
3386 | |
3387 Label L_exit, L_key_192_256, L_key_256; | |
3388 Label L_singleBlock_loopTop_128, L_multiBlock_loopTop_128; | |
3389 Label L_singleBlock_loopTop_192, L_singleBlock_loopTop_256; | |
3390 const Register from = c_rarg0; // source array address | |
3391 const Register to = c_rarg1; // destination array address | |
3392 const Register key = c_rarg2; // key array address | |
3393 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
3394 // and left with the results of the last encryption block | |
3395 #ifndef _WIN64 | |
3396 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
3397 #else | |
3398 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
3399 const Register len_reg = r10; // pick the first volatile windows register | |
3400 #endif | |
3401 const Register pos = rax; | |
3402 | |
3403 // keys 0-10 preloaded into xmm2-xmm12 | |
3404 const int XMM_REG_NUM_KEY_FIRST = 5; | |
3405 const int XMM_REG_NUM_KEY_LAST = 15; | |
7427 | 3406 const XMMRegister xmm_key_first = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); |
6894 | 3407 const XMMRegister xmm_key_last = as_XMMRegister(XMM_REG_NUM_KEY_LAST); |
3408 | |
3409 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3410 | |
3411 #ifdef _WIN64 | |
3412 // on win64, fill len_reg from stack position | |
3413 __ movl(len_reg, len_mem); | |
3414 // save the xmm registers which must be preserved 6-15 | |
3415 __ subptr(rsp, -rsp_after_call_off * wordSize); | |
3416 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3417 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
3418 } | |
3419 #endif | |
3420 // the java expanded key ordering is rotated one position from what we want | |
3421 // so we start from 0x10 here and hit 0x00 last | |
3422 const XMMRegister xmm_key_shuf_mask = xmm1; // used temporarily to swap key bytes up front | |
3423 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
3424 // load up xmm regs 5 thru 15 with key 0x10 - 0xa0 - 0x00 | |
7427 | 3425 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x10; rnum < XMM_REG_NUM_KEY_LAST; rnum++) { |
6894 | 3426 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); |
3427 offset += 0x10; | |
3428 } | |
7427 | 3429 load_key(xmm_key_last, key, 0x00, xmm_key_shuf_mask); |
6894 | 3430 |
3431 const XMMRegister xmm_prev_block_cipher = xmm1; // holds cipher of previous block | |
7427 | 3432 |
6894 | 3433 // registers holding the four results in the parallelized loop |
3434 const XMMRegister xmm_result0 = xmm0; | |
3435 const XMMRegister xmm_result1 = xmm2; | |
3436 const XMMRegister xmm_result2 = xmm3; | |
3437 const XMMRegister xmm_result3 = xmm4; | |
3438 | |
3439 __ movdqu(xmm_prev_block_cipher, Address(rvec, 0x00)); // initialize with initial rvec | |
3440 | |
3441 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
3442 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
3443 __ cmpl(rax, 44); | |
3444 __ jcc(Assembler::notEqual, L_key_192_256); | |
3445 | |
3446 | |
3447 // 128-bit code follows here, parallelized | |
3448 __ movptr(pos, 0); | |
3449 __ align(OptoLoopAlignment); | |
3450 __ BIND(L_multiBlock_loopTop_128); | |
3451 __ cmpptr(len_reg, 4*AESBlockSize); // see if at least 4 blocks left | |
3452 __ jcc(Assembler::less, L_singleBlock_loopTop_128); | |
3453 | |
3454 __ movdqu(xmm_result0, Address(from, pos, Address::times_1, 0*AESBlockSize)); // get next 4 blocks into xmmresult registers | |
3455 __ movdqu(xmm_result1, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
3456 __ movdqu(xmm_result2, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
3457 __ movdqu(xmm_result3, Address(from, pos, Address::times_1, 3*AESBlockSize)); | |
3458 | |
3459 #define DoFour(opc, src_reg) \ | |
3460 __ opc(xmm_result0, src_reg); \ | |
3461 __ opc(xmm_result1, src_reg); \ | |
3462 __ opc(xmm_result2, src_reg); \ | |
3463 __ opc(xmm_result3, src_reg); | |
3464 | |
3465 DoFour(pxor, xmm_key_first); | |
3466 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3467 DoFour(aesdec, as_XMMRegister(rnum)); | |
3468 } | |
3469 DoFour(aesdeclast, xmm_key_last); | |
3470 // for each result, xor with the r vector of previous cipher block | |
3471 __ pxor(xmm_result0, xmm_prev_block_cipher); | |
3472 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 0*AESBlockSize)); | |
3473 __ pxor(xmm_result1, xmm_prev_block_cipher); | |
3474 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
3475 __ pxor(xmm_result2, xmm_prev_block_cipher); | |
3476 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
3477 __ pxor(xmm_result3, xmm_prev_block_cipher); | |
3478 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 3*AESBlockSize)); // this will carry over to next set of blocks | |
3479 | |
3480 __ movdqu(Address(to, pos, Address::times_1, 0*AESBlockSize), xmm_result0); // store 4 results into the next 64 bytes of output | |
3481 __ movdqu(Address(to, pos, Address::times_1, 1*AESBlockSize), xmm_result1); | |
3482 __ movdqu(Address(to, pos, Address::times_1, 2*AESBlockSize), xmm_result2); | |
3483 __ movdqu(Address(to, pos, Address::times_1, 3*AESBlockSize), xmm_result3); | |
3484 | |
3485 __ addptr(pos, 4*AESBlockSize); | |
3486 __ subptr(len_reg, 4*AESBlockSize); | |
3487 __ jmp(L_multiBlock_loopTop_128); | |
3488 | |
3489 // registers used in the non-parallelized loops | |
7427 | 3490 // xmm register assignments for the loops below |
3491 const XMMRegister xmm_result = xmm0; | |
6894 | 3492 const XMMRegister xmm_prev_block_cipher_save = xmm2; |
7427 | 3493 const XMMRegister xmm_key11 = xmm3; |
3494 const XMMRegister xmm_key12 = xmm4; | |
3495 const XMMRegister xmm_temp = xmm4; | |
6894 | 3496 |
3497 __ align(OptoLoopAlignment); | |
3498 __ BIND(L_singleBlock_loopTop_128); | |
3499 __ cmpptr(len_reg, 0); // any blocks left?? | |
3500 __ jcc(Assembler::equal, L_exit); | |
3501 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
3502 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
3503 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3504 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3505 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3506 } | |
3507 __ aesdeclast(xmm_result, xmm_key_last); | |
3508 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
3509 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
3510 // no need to store r to memory until we exit | |
3511 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block | |
3512 | |
3513 __ addptr(pos, AESBlockSize); | |
3514 __ subptr(len_reg, AESBlockSize); | |
3515 __ jmp(L_singleBlock_loopTop_128); | |
3516 | |
3517 | |
3518 __ BIND(L_exit); | |
3519 __ movdqu(Address(rvec, 0), xmm_prev_block_cipher); // final value of r stored in rvec of CipherBlockChaining object | |
3520 #ifdef _WIN64 | |
3521 // restore regs belonging to calling function | |
3522 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
3523 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
3524 } | |
3525 #endif | |
3526 __ movl(rax, 0); // return 0 (why?) | |
3527 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3528 __ ret(0); | |
3529 | |
3530 | |
3531 __ BIND(L_key_192_256); | |
3532 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
7427 | 3533 load_key(xmm_key11, key, 0xb0); |
6894 | 3534 __ cmpl(rax, 52); |
3535 __ jcc(Assembler::notEqual, L_key_256); | |
3536 | |
3537 // 192-bit code follows here (could be optimized to use parallelism) | |
7427 | 3538 load_key(xmm_key12, key, 0xc0); // 192-bit key goes up to c0 |
6894 | 3539 __ movptr(pos, 0); |
3540 __ align(OptoLoopAlignment); | |
7427 | 3541 |
6894 | 3542 __ BIND(L_singleBlock_loopTop_192); |
3543 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
3544 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
3545 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3546 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3547 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3548 } | |
7427 | 3549 __ aesdec(xmm_result, xmm_key11); |
3550 __ aesdec(xmm_result, xmm_key12); | |
6894 | 3551 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 always came from key+0 |
3552 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
7427 | 3553 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
6894 | 3554 // no need to store r to memory until we exit |
7427 | 3555 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block |
6894 | 3556 __ addptr(pos, AESBlockSize); |
3557 __ subptr(len_reg, AESBlockSize); | |
3558 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_192); | |
3559 __ jmp(L_exit); | |
3560 | |
3561 __ BIND(L_key_256); | |
3562 // 256-bit code follows here (could be optimized to use parallelism) | |
3563 __ movptr(pos, 0); | |
3564 __ align(OptoLoopAlignment); | |
7427 | 3565 |
6894 | 3566 __ BIND(L_singleBlock_loopTop_256); |
7427 | 3567 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input |
6894 | 3568 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector |
3569 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
3570 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
3571 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
3572 } | |
7427 | 3573 __ aesdec(xmm_result, xmm_key11); |
3574 load_key(xmm_temp, key, 0xc0); | |
3575 __ aesdec(xmm_result, xmm_temp); | |
3576 load_key(xmm_temp, key, 0xd0); | |
3577 __ aesdec(xmm_result, xmm_temp); | |
3578 load_key(xmm_temp, key, 0xe0); // 256-bit key goes up to e0 | |
3579 __ aesdec(xmm_result, xmm_temp); | |
3580 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 came from key+0 | |
6894 | 3581 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector |
7427 | 3582 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
6894 | 3583 // no need to store r to memory until we exit |
7427 | 3584 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block |
6894 | 3585 __ addptr(pos, AESBlockSize); |
3586 __ subptr(len_reg, AESBlockSize); | |
3587 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_256); | |
3588 __ jmp(L_exit); | |
3589 | |
3590 return start; | |
3591 } | |
3592 | |
3593 | |
3594 | |
0 | 3595 #undef __ |
3596 #define __ masm-> | |
3597 | |
3598 // Continuation point for throwing of implicit exceptions that are | |
3599 // not handled in the current activation. Fabricates an exception | |
3600 // oop and initiates normal exception dispatching in this | |
3601 // frame. Since we need to preserve callee-saved values (currently | |
3602 // only for C2, but done for C1 as well) we need a callee-saved oop | |
3603 // map and therefore have to make these stubs into RuntimeStubs | |
3604 // rather than BufferBlobs. If the compiler needs all registers to | |
3605 // be preserved between the fault point and the exception handler | |
3606 // then it must assume responsibility for that in | |
3607 // AbstractCompiler::continuation_for_implicit_null_exception or | |
3608 // continuation_for_implicit_division_by_zero_exception. All other | |
3609 // implicit exceptions (e.g., NullPointerException or | |
3610 // AbstractMethodError on entry) are either at call sites or | |
3611 // otherwise assume that stack unwinding will be initiated, so | |
3612 // caller saved registers were assumed volatile in the compiler. | |
3613 address generate_throw_exception(const char* name, | |
3614 address runtime_entry, | |
3781
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3615 Register arg1 = noreg, |
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3616 Register arg2 = noreg) { |
0 | 3617 // Information about frame layout at time of blocking runtime call. |
3618 // Note that we only have to preserve callee-saved registers since | |
3619 // the compilers are responsible for supplying a continuation point | |
3620 // if they expect all registers to be preserved. | |
3621 enum layout { | |
3622 rbp_off = frame::arg_reg_save_area_bytes/BytesPerInt, | |
3623 rbp_off2, | |
3624 return_off, | |
3625 return_off2, | |
3626 framesize // inclusive of return address | |
3627 }; | |
3628 | |
3629 int insts_size = 512; | |
3630 int locs_size = 64; | |
3631 | |
3632 CodeBuffer code(name, insts_size, locs_size); | |
3633 OopMapSet* oop_maps = new OopMapSet(); | |
3634 MacroAssembler* masm = new MacroAssembler(&code); | |
3635 | |
3636 address start = __ pc(); | |
3637 | |
3638 // This is an inlined and slightly modified version of call_VM | |
3639 // which has the ability to fetch the return PC out of | |
3640 // thread-local storage and also sets up last_Java_sp slightly | |
3641 // differently than the real call_VM | |
3642 | |
3643 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
3644 | |
3645 assert(is_even(framesize/2), "sp not 16-byte aligned"); | |
3646 | |
3647 // return address and rbp are already in place | |
304 | 3648 __ subptr(rsp, (framesize-4) << LogBytesPerInt); // prolog |
0 | 3649 |
3650 int frame_complete = __ pc() - start; | |
3651 | |
3652 // Set up last_Java_sp and last_Java_fp | |
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3653 address the_pc = __ pc(); |
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3654 __ set_last_Java_frame(rsp, rbp, the_pc); |
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3655 __ andptr(rsp, -(StackAlignmentInBytes)); // Align stack |
0 | 3656 |
3657 // Call runtime | |
3781
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3658 if (arg1 != noreg) { |
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3659 assert(arg2 != c_rarg1, "clobbered"); |
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3660 __ movptr(c_rarg1, arg1); |
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3661 } |
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3662 if (arg2 != noreg) { |
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3663 __ movptr(c_rarg2, arg2); |
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3664 } |
304 | 3665 __ movptr(c_rarg0, r15_thread); |
0 | 3666 BLOCK_COMMENT("call runtime_entry"); |
3667 __ call(RuntimeAddress(runtime_entry)); | |
3668 | |
3669 // Generate oop map | |
3670 OopMap* map = new OopMap(framesize, 0); | |
3671 | |
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3672 oop_maps->add_gc_map(the_pc - start, map); |
0 | 3673 |
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3674 __ reset_last_Java_frame(true, true); |
0 | 3675 |
3676 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
3677 | |
3678 // check for pending exceptions | |
3679 #ifdef ASSERT | |
3680 Label L; | |
304 | 3681 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), |
3682 (int32_t) NULL_WORD); | |
0 | 3683 __ jcc(Assembler::notEqual, L); |
3684 __ should_not_reach_here(); | |
3685 __ bind(L); | |
3686 #endif // ASSERT | |
3687 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); | |
3688 | |
3689 | |
3690 // codeBlob framesize is in words (not VMRegImpl::slot_size) | |
3691 RuntimeStub* stub = | |
3692 RuntimeStub::new_runtime_stub(name, | |
3693 &code, | |
3694 frame_complete, | |
3695 (framesize >> (LogBytesPerWord - LogBytesPerInt)), | |
3696 oop_maps, false); | |
3697 return stub->entry_point(); | |
3698 } | |
3699 | |
3700 // Initialization | |
3701 void generate_initial() { | |
3702 // Generates all stubs and initializes the entry points | |
3703 | |
3704 // This platform-specific stub is needed by generate_call_stub() | |
304 | 3705 StubRoutines::x86::_mxcsr_std = generate_fp_mask("mxcsr_std", 0x0000000000001F80); |
0 | 3706 |
3707 // entry points that exist in all platforms Note: This is code | |
3708 // that could be shared among different platforms - however the | |
3709 // benefit seems to be smaller than the disadvantage of having a | |
3710 // much more complicated generator structure. See also comment in | |
3711 // stubRoutines.hpp. | |
3712 | |
3713 StubRoutines::_forward_exception_entry = generate_forward_exception(); | |
3714 | |
3715 StubRoutines::_call_stub_entry = | |
3716 generate_call_stub(StubRoutines::_call_stub_return_address); | |
3717 | |
3718 // is referenced by megamorphic call | |
3719 StubRoutines::_catch_exception_entry = generate_catch_exception(); | |
3720 | |
3721 // atomic calls | |
3722 StubRoutines::_atomic_xchg_entry = generate_atomic_xchg(); | |
3723 StubRoutines::_atomic_xchg_ptr_entry = generate_atomic_xchg_ptr(); | |
3724 StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg(); | |
3725 StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long(); | |
3726 StubRoutines::_atomic_add_entry = generate_atomic_add(); | |
3727 StubRoutines::_atomic_add_ptr_entry = generate_atomic_add_ptr(); | |
3728 StubRoutines::_fence_entry = generate_orderaccess_fence(); | |
3729 | |
3730 StubRoutines::_handler_for_unsafe_access_entry = | |
3731 generate_handler_for_unsafe_access(); | |
3732 | |
3733 // platform dependent | |
304 | 3734 StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp(); |
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3735 StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp(); |
304 | 3736 |
3737 StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr(); | |
3781
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3738 |
4743 | 3739 // Build this early so it's available for the interpreter. |
3740 StubRoutines::_throw_StackOverflowError_entry = | |
3741 generate_throw_exception("StackOverflowError throw_exception", | |
3742 CAST_FROM_FN_PTR(address, | |
3743 SharedRuntime:: | |
3744 throw_StackOverflowError)); | |
0 | 3745 } |
3746 | |
3747 void generate_all() { | |
3748 // Generates all stubs and initializes the entry points | |
3749 | |
3750 // These entry points require SharedInfo::stack0 to be set up in | |
3751 // non-core builds and need to be relocatable, so they each | |
3752 // fabricate a RuntimeStub internally. | |
3753 StubRoutines::_throw_AbstractMethodError_entry = | |
3754 generate_throw_exception("AbstractMethodError throw_exception", | |
3755 CAST_FROM_FN_PTR(address, | |
3756 SharedRuntime:: | |
3937 | 3757 throw_AbstractMethodError)); |
0 | 3758 |
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3759 StubRoutines::_throw_IncompatibleClassChangeError_entry = |
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3760 generate_throw_exception("IncompatibleClassChangeError throw_exception", |
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3761 CAST_FROM_FN_PTR(address, |
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3762 SharedRuntime:: |
3937 | 3763 throw_IncompatibleClassChangeError)); |
0 | 3764 |
3765 StubRoutines::_throw_NullPointerException_at_call_entry = | |
3766 generate_throw_exception("NullPointerException at call throw_exception", | |
3767 CAST_FROM_FN_PTR(address, | |
3768 SharedRuntime:: | |
3937 | 3769 throw_NullPointerException_at_call)); |
0 | 3770 |
3771 // entry points that are platform specific | |
304 | 3772 StubRoutines::x86::_f2i_fixup = generate_f2i_fixup(); |
3773 StubRoutines::x86::_f2l_fixup = generate_f2l_fixup(); | |
3774 StubRoutines::x86::_d2i_fixup = generate_d2i_fixup(); | |
3775 StubRoutines::x86::_d2l_fixup = generate_d2l_fixup(); | |
3776 | |
3777 StubRoutines::x86::_float_sign_mask = generate_fp_mask("float_sign_mask", 0x7FFFFFFF7FFFFFFF); | |
3778 StubRoutines::x86::_float_sign_flip = generate_fp_mask("float_sign_flip", 0x8000000080000000); | |
3779 StubRoutines::x86::_double_sign_mask = generate_fp_mask("double_sign_mask", 0x7FFFFFFFFFFFFFFF); | |
3780 StubRoutines::x86::_double_sign_flip = generate_fp_mask("double_sign_flip", 0x8000000000000000); | |
0 | 3781 |
3782 // support for verify_oop (must happen after universe_init) | |
3783 StubRoutines::_verify_oop_subroutine_entry = generate_verify_oop(); | |
3784 | |
3785 // arraycopy stubs used by compilers | |
3786 generate_arraycopy_stubs(); | |
1108 | 3787 |
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3788 generate_math_stubs(); |
6894 | 3789 |
3790 // don't bother generating these AES intrinsic stubs unless global flag is set | |
3791 if (UseAESIntrinsics) { | |
3792 StubRoutines::x86::_key_shuffle_mask_addr = generate_key_shuffle_mask(); // needed by the others | |
3793 | |
3794 StubRoutines::_aescrypt_encryptBlock = generate_aescrypt_encryptBlock(); | |
3795 StubRoutines::_aescrypt_decryptBlock = generate_aescrypt_decryptBlock(); | |
3796 StubRoutines::_cipherBlockChaining_encryptAESCrypt = generate_cipherBlockChaining_encryptAESCrypt(); | |
3797 StubRoutines::_cipherBlockChaining_decryptAESCrypt = generate_cipherBlockChaining_decryptAESCrypt_Parallel(); | |
3798 } | |
0 | 3799 } |
3800 | |
3801 public: | |
3802 StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { | |
3803 if (all) { | |
3804 generate_all(); | |
3805 } else { | |
3806 generate_initial(); | |
3807 } | |
3808 } | |
3809 }; // end class declaration | |
3810 | |
3811 void StubGenerator_generate(CodeBuffer* code, bool all) { | |
3812 StubGenerator g(code, all); | |
3813 } |