Mercurial > hg > truffle
annotate src/share/vm/c1/c1_LIRAssembler.cpp @ 1472:7641338cfc92
Small NPE fix. More detailed error in case of wrong bytecode in patching stub.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
---|---|
date | Thu, 25 Nov 2010 19:21:22 +0100 |
parents | 9f5b60a14736 |
children | c18cbe5936b8 61b2245abf36 |
rev | line source |
---|---|
0 | 1 /* |
1295 | 2 * Copyright 2000-2010 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_c1_LIRAssembler.cpp.incl" | |
27 | |
28 | |
29 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) { | |
30 // we must have enough patching space so that call can be inserted | |
31 while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeCall::instruction_size) { | |
32 _masm->nop(); | |
33 } | |
34 patch->install(_masm, patch_code, obj, info); | |
35 append_patching_stub(patch); | |
36 | |
37 #ifdef ASSERT | |
38 Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->bci()); | |
39 if (patch->id() == PatchingStub::access_field_id) { | |
40 switch (code) { | |
41 case Bytecodes::_putstatic: | |
42 case Bytecodes::_getstatic: | |
43 case Bytecodes::_putfield: | |
44 case Bytecodes::_getfield: | |
45 break; | |
46 default: | |
47 ShouldNotReachHere(); | |
48 } | |
49 } else if (patch->id() == PatchingStub::load_klass_id) { | |
50 switch (code) { | |
51 case Bytecodes::_putstatic: | |
52 case Bytecodes::_getstatic: | |
53 case Bytecodes::_new: | |
54 case Bytecodes::_anewarray: | |
55 case Bytecodes::_multianewarray: | |
56 case Bytecodes::_instanceof: | |
57 case Bytecodes::_checkcast: | |
58 case Bytecodes::_ldc: | |
59 case Bytecodes::_ldc_w: | |
60 break; | |
61 default: | |
62 ShouldNotReachHere(); | |
63 } | |
64 } else { | |
65 ShouldNotReachHere(); | |
66 } | |
67 #endif | |
68 } | |
69 | |
70 | |
71 //--------------------------------------------------------------- | |
72 | |
73 | |
74 LIR_Assembler::LIR_Assembler(Compilation* c): | |
75 _compilation(c) | |
76 , _masm(c->masm()) | |
342 | 77 , _bs(Universe::heap()->barrier_set()) |
0 | 78 , _frame_map(c->frame_map()) |
79 , _current_block(NULL) | |
80 , _pending_non_safepoint(NULL) | |
81 , _pending_non_safepoint_offset(0) | |
82 { | |
83 _slow_case_stubs = new CodeStubList(); | |
84 } | |
85 | |
86 | |
87 LIR_Assembler::~LIR_Assembler() { | |
88 } | |
89 | |
90 | |
91 void LIR_Assembler::append_patching_stub(PatchingStub* stub) { | |
92 _slow_case_stubs->append(stub); | |
93 } | |
94 | |
95 | |
96 void LIR_Assembler::check_codespace() { | |
97 CodeSection* cs = _masm->code_section(); | |
98 if (cs->remaining() < (int)(1*K)) { | |
99 BAILOUT("CodeBuffer overflow"); | |
100 } | |
101 } | |
102 | |
103 | |
104 void LIR_Assembler::emit_code_stub(CodeStub* stub) { | |
105 _slow_case_stubs->append(stub); | |
106 } | |
107 | |
108 void LIR_Assembler::emit_stubs(CodeStubList* stub_list) { | |
109 for (int m = 0; m < stub_list->length(); m++) { | |
110 CodeStub* s = (*stub_list)[m]; | |
111 | |
112 check_codespace(); | |
113 CHECK_BAILOUT(); | |
114 | |
115 #ifndef PRODUCT | |
116 if (CommentedAssembly) { | |
117 stringStream st; | |
118 s->print_name(&st); | |
119 st.print(" slow case"); | |
120 _masm->block_comment(st.as_string()); | |
121 } | |
122 #endif | |
123 s->emit_code(this); | |
124 #ifdef ASSERT | |
125 s->assert_no_unbound_labels(); | |
126 #endif | |
127 } | |
128 } | |
129 | |
130 | |
131 void LIR_Assembler::emit_slow_case_stubs() { | |
132 emit_stubs(_slow_case_stubs); | |
133 } | |
134 | |
135 | |
136 bool LIR_Assembler::needs_icache(ciMethod* method) const { | |
137 return !method->is_static(); | |
138 } | |
139 | |
140 | |
141 int LIR_Assembler::code_offset() const { | |
142 return _masm->offset(); | |
143 } | |
144 | |
145 | |
146 address LIR_Assembler::pc() const { | |
147 return _masm->pc(); | |
148 } | |
149 | |
150 | |
151 void LIR_Assembler::emit_exception_entries(ExceptionInfoList* info_list) { | |
152 for (int i = 0; i < info_list->length(); i++) { | |
153 XHandlers* handlers = info_list->at(i)->exception_handlers(); | |
154 | |
155 for (int j = 0; j < handlers->length(); j++) { | |
156 XHandler* handler = handlers->handler_at(j); | |
157 assert(handler->lir_op_id() != -1, "handler not processed by LinearScan"); | |
158 assert(handler->entry_code() == NULL || | |
159 handler->entry_code()->instructions_list()->last()->code() == lir_branch || | |
160 handler->entry_code()->instructions_list()->last()->code() == lir_delay_slot, "last operation must be branch"); | |
161 | |
162 if (handler->entry_pco() == -1) { | |
163 // entry code not emitted yet | |
164 if (handler->entry_code() != NULL && handler->entry_code()->instructions_list()->length() > 1) { | |
165 handler->set_entry_pco(code_offset()); | |
166 if (CommentedAssembly) { | |
167 _masm->block_comment("Exception adapter block"); | |
168 } | |
169 emit_lir_list(handler->entry_code()); | |
170 } else { | |
171 handler->set_entry_pco(handler->entry_block()->exception_handler_pco()); | |
172 } | |
173 | |
174 assert(handler->entry_pco() != -1, "must be set now"); | |
175 } | |
176 } | |
177 } | |
178 } | |
179 | |
180 | |
181 void LIR_Assembler::emit_code(BlockList* hir) { | |
182 if (PrintLIR) { | |
183 print_LIR(hir); | |
184 } | |
185 | |
186 int n = hir->length(); | |
187 for (int i = 0; i < n; i++) { | |
188 emit_block(hir->at(i)); | |
189 CHECK_BAILOUT(); | |
190 } | |
191 | |
192 flush_debug_info(code_offset()); | |
193 | |
194 DEBUG_ONLY(check_no_unbound_labels()); | |
195 } | |
196 | |
197 | |
198 void LIR_Assembler::emit_block(BlockBegin* block) { | |
199 if (block->is_set(BlockBegin::backward_branch_target_flag)) { | |
200 align_backward_branch_target(); | |
201 } | |
202 | |
203 // if this block is the start of an exception handler, record the | |
204 // PC offset of the first instruction for later construction of | |
205 // the ExceptionHandlerTable | |
206 if (block->is_set(BlockBegin::exception_entry_flag)) { | |
207 block->set_exception_handler_pco(code_offset()); | |
208 } | |
209 | |
210 #ifndef PRODUCT | |
211 if (PrintLIRWithAssembly) { | |
212 // don't print Phi's | |
213 InstructionPrinter ip(false); | |
214 block->print(ip); | |
215 } | |
216 #endif /* PRODUCT */ | |
217 | |
218 assert(block->lir() != NULL, "must have LIR"); | |
304 | 219 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
0 | 220 |
221 #ifndef PRODUCT | |
222 if (CommentedAssembly) { | |
223 stringStream st; | |
224 st.print_cr(" block B%d [%d, %d]", block->block_id(), block->bci(), block->end()->bci()); | |
225 _masm->block_comment(st.as_string()); | |
226 } | |
227 #endif | |
228 | |
229 emit_lir_list(block->lir()); | |
230 | |
304 | 231 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
0 | 232 } |
233 | |
234 | |
235 void LIR_Assembler::emit_lir_list(LIR_List* list) { | |
236 peephole(list); | |
237 | |
238 int n = list->length(); | |
239 for (int i = 0; i < n; i++) { | |
240 LIR_Op* op = list->at(i); | |
241 | |
242 check_codespace(); | |
243 CHECK_BAILOUT(); | |
244 | |
245 #ifndef PRODUCT | |
246 if (CommentedAssembly) { | |
247 // Don't record out every op since that's too verbose. Print | |
248 // branches since they include block and stub names. Also print | |
249 // patching moves since they generate funny looking code. | |
250 if (op->code() == lir_branch || | |
251 (op->code() == lir_move && op->as_Op1()->patch_code() != lir_patch_none)) { | |
252 stringStream st; | |
253 op->print_on(&st); | |
254 _masm->block_comment(st.as_string()); | |
255 } | |
256 } | |
257 if (PrintLIRWithAssembly) { | |
258 // print out the LIR operation followed by the resulting assembly | |
259 list->at(i)->print(); tty->cr(); | |
260 } | |
261 #endif /* PRODUCT */ | |
262 | |
263 op->emit_code(this); | |
264 | |
265 if (compilation()->debug_info_recorder()->recording_non_safepoints()) { | |
266 process_debug_info(op); | |
267 } | |
268 | |
269 #ifndef PRODUCT | |
270 if (PrintLIRWithAssembly) { | |
271 _masm->code()->decode(); | |
272 } | |
273 #endif /* PRODUCT */ | |
274 } | |
275 } | |
276 | |
277 #ifdef ASSERT | |
278 void LIR_Assembler::check_no_unbound_labels() { | |
279 CHECK_BAILOUT(); | |
280 | |
281 for (int i = 0; i < _branch_target_blocks.length() - 1; i++) { | |
282 if (!_branch_target_blocks.at(i)->label()->is_bound()) { | |
283 tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id()); | |
284 assert(false, "unbound label"); | |
285 } | |
286 } | |
287 } | |
288 #endif | |
289 | |
290 //----------------------------------debug info-------------------------------- | |
291 | |
292 | |
293 void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) { | |
294 _masm->code_section()->relocate(pc(), relocInfo::poll_type); | |
295 int pc_offset = code_offset(); | |
296 flush_debug_info(pc_offset); | |
297 info->record_debug_info(compilation()->debug_info_recorder(), pc_offset); | |
298 if (info->exception_handlers() != NULL) { | |
299 compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers()); | |
300 } | |
301 } | |
302 | |
303 | |
1295 | 304 void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo, bool is_method_handle_invoke) { |
0 | 305 flush_debug_info(pc_offset); |
1295 | 306 cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset, is_method_handle_invoke); |
0 | 307 if (cinfo->exception_handlers() != NULL) { |
308 compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers()); | |
309 } | |
310 } | |
311 | |
312 static ValueStack* debug_info(Instruction* ins) { | |
313 StateSplit* ss = ins->as_StateSplit(); | |
314 if (ss != NULL) return ss->state(); | |
315 return ins->lock_stack(); | |
316 } | |
317 | |
318 void LIR_Assembler::process_debug_info(LIR_Op* op) { | |
319 Instruction* src = op->source(); | |
320 if (src == NULL) return; | |
321 int pc_offset = code_offset(); | |
322 if (_pending_non_safepoint == src) { | |
323 _pending_non_safepoint_offset = pc_offset; | |
324 return; | |
325 } | |
326 ValueStack* vstack = debug_info(src); | |
327 if (vstack == NULL) return; | |
328 if (_pending_non_safepoint != NULL) { | |
329 // Got some old debug info. Get rid of it. | |
330 if (_pending_non_safepoint->bci() == src->bci() && | |
331 debug_info(_pending_non_safepoint) == vstack) { | |
332 _pending_non_safepoint_offset = pc_offset; | |
333 return; | |
334 } | |
335 if (_pending_non_safepoint_offset < pc_offset) { | |
336 record_non_safepoint_debug_info(); | |
337 } | |
338 _pending_non_safepoint = NULL; | |
339 } | |
340 // Remember the debug info. | |
341 if (pc_offset > compilation()->debug_info_recorder()->last_pc_offset()) { | |
342 _pending_non_safepoint = src; | |
343 _pending_non_safepoint_offset = pc_offset; | |
344 } | |
345 } | |
346 | |
347 // Index caller states in s, where 0 is the oldest, 1 its callee, etc. | |
348 // Return NULL if n is too large. | |
349 // Returns the caller_bci for the next-younger state, also. | |
350 static ValueStack* nth_oldest(ValueStack* s, int n, int& bci_result) { | |
351 ValueStack* t = s; | |
352 for (int i = 0; i < n; i++) { | |
353 if (t == NULL) break; | |
354 t = t->caller_state(); | |
355 } | |
356 if (t == NULL) return NULL; | |
357 for (;;) { | |
358 ValueStack* tc = t->caller_state(); | |
359 if (tc == NULL) return s; | |
360 t = tc; | |
361 bci_result = s->scope()->caller_bci(); | |
362 s = s->caller_state(); | |
363 } | |
364 } | |
365 | |
366 void LIR_Assembler::record_non_safepoint_debug_info() { | |
367 int pc_offset = _pending_non_safepoint_offset; | |
368 ValueStack* vstack = debug_info(_pending_non_safepoint); | |
369 int bci = _pending_non_safepoint->bci(); | |
370 | |
371 DebugInformationRecorder* debug_info = compilation()->debug_info_recorder(); | |
372 assert(debug_info->recording_non_safepoints(), "sanity"); | |
373 | |
374 debug_info->add_non_safepoint(pc_offset); | |
375 | |
376 // Visit scopes from oldest to youngest. | |
377 for (int n = 0; ; n++) { | |
378 int s_bci = bci; | |
379 ValueStack* s = nth_oldest(vstack, n, s_bci); | |
380 if (s == NULL) break; | |
381 IRScope* scope = s->scope(); | |
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
380
diff
changeset
|
382 //Always pass false for reexecute since these ScopeDescs are never used for deopt |
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
380
diff
changeset
|
383 debug_info->describe_scope(pc_offset, scope->method(), s_bci, false/*reexecute*/); |
0 | 384 } |
385 | |
386 debug_info->end_non_safepoint(pc_offset); | |
387 } | |
388 | |
389 | |
390 void LIR_Assembler::add_debug_info_for_null_check_here(CodeEmitInfo* cinfo) { | |
391 add_debug_info_for_null_check(code_offset(), cinfo); | |
392 } | |
393 | |
394 void LIR_Assembler::add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo) { | |
395 ImplicitNullCheckStub* stub = new ImplicitNullCheckStub(pc_offset, cinfo); | |
396 emit_code_stub(stub); | |
397 } | |
398 | |
399 void LIR_Assembler::add_debug_info_for_div0_here(CodeEmitInfo* info) { | |
400 add_debug_info_for_div0(code_offset(), info); | |
401 } | |
402 | |
403 void LIR_Assembler::add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo) { | |
404 DivByZeroStub* stub = new DivByZeroStub(pc_offset, cinfo); | |
405 emit_code_stub(stub); | |
406 } | |
407 | |
408 void LIR_Assembler::emit_rtcall(LIR_OpRTCall* op) { | |
409 rt_call(op->result_opr(), op->addr(), op->arguments(), op->tmp(), op->info()); | |
410 } | |
411 | |
412 | |
413 void LIR_Assembler::emit_call(LIR_OpJavaCall* op) { | |
414 verify_oop_map(op->info()); | |
415 | |
1295 | 416 // JSR 292 |
417 // Preserve the SP over MethodHandle call sites. | |
418 if (op->is_method_handle_invoke()) { | |
1301
fc2c71045ada
6934966: JSR 292 add C1 logic for saved SP over MethodHandle calls
twisti
parents:
1295
diff
changeset
|
419 preserve_SP(op); |
1295 | 420 } |
421 | |
0 | 422 if (os::is_MP()) { |
423 // must align calls sites, otherwise they can't be updated atomically on MP hardware | |
424 align_call(op->code()); | |
425 } | |
426 | |
427 // emit the static call stub stuff out of line | |
428 emit_static_call_stub(); | |
429 | |
430 switch (op->code()) { | |
431 case lir_static_call: | |
1295 | 432 call(op, relocInfo::static_call_type); |
0 | 433 break; |
434 case lir_optvirtual_call: | |
1295 | 435 case lir_dynamic_call: |
436 call(op, relocInfo::opt_virtual_call_type); | |
0 | 437 break; |
438 case lir_icvirtual_call: | |
1295 | 439 ic_call(op); |
0 | 440 break; |
441 case lir_virtual_call: | |
1295 | 442 vtable_call(op); |
0 | 443 break; |
444 default: ShouldNotReachHere(); | |
445 } | |
1295 | 446 |
447 if (op->is_method_handle_invoke()) { | |
1301
fc2c71045ada
6934966: JSR 292 add C1 logic for saved SP over MethodHandle calls
twisti
parents:
1295
diff
changeset
|
448 restore_SP(op); |
1295 | 449 } |
450 | |
304 | 451 #if defined(X86) && defined(TIERED) |
0 | 452 // C2 leave fpu stack dirty clean it |
453 if (UseSSE < 2) { | |
454 int i; | |
455 for ( i = 1; i <= 7 ; i++ ) { | |
456 ffree(i); | |
457 } | |
458 if (!op->result_opr()->is_float_kind()) { | |
459 ffree(0); | |
460 } | |
461 } | |
304 | 462 #endif // X86 && TIERED |
0 | 463 } |
464 | |
465 | |
466 void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) { | |
467 _masm->bind (*(op->label())); | |
468 } | |
469 | |
470 | |
471 void LIR_Assembler::emit_op1(LIR_Op1* op) { | |
472 switch (op->code()) { | |
473 case lir_move: | |
474 if (op->move_kind() == lir_move_volatile) { | |
475 assert(op->patch_code() == lir_patch_none, "can't patch volatiles"); | |
476 volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info()); | |
477 } else { | |
478 move_op(op->in_opr(), op->result_opr(), op->type(), | |
479 op->patch_code(), op->info(), op->pop_fpu_stack(), op->move_kind() == lir_move_unaligned); | |
480 } | |
481 break; | |
482 | |
483 case lir_prefetchr: | |
484 prefetchr(op->in_opr()); | |
485 break; | |
486 | |
487 case lir_prefetchw: | |
488 prefetchw(op->in_opr()); | |
489 break; | |
490 | |
491 case lir_roundfp: { | |
492 LIR_OpRoundFP* round_op = op->as_OpRoundFP(); | |
493 roundfp_op(round_op->in_opr(), round_op->tmp(), round_op->result_opr(), round_op->pop_fpu_stack()); | |
494 break; | |
495 } | |
496 | |
497 case lir_return: | |
498 return_op(op->in_opr()); | |
499 break; | |
500 | |
501 case lir_safepoint: | |
502 if (compilation()->debug_info_recorder()->last_pc_offset() == code_offset()) { | |
503 _masm->nop(); | |
504 } | |
505 safepoint_poll(op->in_opr(), op->info()); | |
506 break; | |
507 | |
508 case lir_fxch: | |
509 fxch(op->in_opr()->as_jint()); | |
510 break; | |
511 | |
512 case lir_fld: | |
513 fld(op->in_opr()->as_jint()); | |
514 break; | |
515 | |
516 case lir_ffree: | |
517 ffree(op->in_opr()->as_jint()); | |
518 break; | |
519 | |
520 case lir_branch: | |
521 break; | |
522 | |
523 case lir_push: | |
524 push(op->in_opr()); | |
525 break; | |
526 | |
527 case lir_pop: | |
528 pop(op->in_opr()); | |
529 break; | |
530 | |
531 case lir_neg: | |
532 negate(op->in_opr(), op->result_opr()); | |
533 break; | |
534 | |
535 case lir_leal: | |
536 leal(op->in_opr(), op->result_opr()); | |
537 break; | |
538 | |
539 case lir_null_check: | |
540 if (GenerateCompilerNullChecks) { | |
541 add_debug_info_for_null_check_here(op->info()); | |
542 | |
543 if (op->in_opr()->is_single_cpu()) { | |
544 _masm->null_check(op->in_opr()->as_register()); | |
545 } else { | |
546 Unimplemented(); | |
547 } | |
548 } | |
549 break; | |
550 | |
551 case lir_monaddr: | |
552 monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr()); | |
553 break; | |
554 | |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1301
diff
changeset
|
555 case lir_unwind: |
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1301
diff
changeset
|
556 unwind_op(op->in_opr()); |
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1301
diff
changeset
|
557 break; |
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1301
diff
changeset
|
558 |
0 | 559 default: |
560 Unimplemented(); | |
561 break; | |
562 } | |
563 } | |
564 | |
565 | |
566 void LIR_Assembler::emit_op0(LIR_Op0* op) { | |
567 switch (op->code()) { | |
568 case lir_word_align: { | |
569 while (code_offset() % BytesPerWord != 0) { | |
570 _masm->nop(); | |
571 } | |
572 break; | |
573 } | |
574 | |
575 case lir_nop: | |
576 assert(op->info() == NULL, "not supported"); | |
577 _masm->nop(); | |
578 break; | |
579 | |
580 case lir_label: | |
581 Unimplemented(); | |
582 break; | |
583 | |
584 case lir_build_frame: | |
585 build_frame(); | |
586 break; | |
587 | |
588 case lir_std_entry: | |
589 // init offsets | |
590 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
591 _masm->align(CodeEntryAlignment); | |
592 if (needs_icache(compilation()->method())) { | |
593 check_icache(); | |
594 } | |
595 offsets()->set_value(CodeOffsets::Verified_Entry, _masm->offset()); | |
596 _masm->verified_entry(); | |
597 build_frame(); | |
598 offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset()); | |
599 break; | |
600 | |
601 case lir_osr_entry: | |
602 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
603 osr_entry(); | |
604 break; | |
605 | |
606 case lir_24bit_FPU: | |
607 set_24bit_FPU(); | |
608 break; | |
609 | |
610 case lir_reset_FPU: | |
611 reset_FPU(); | |
612 break; | |
613 | |
614 case lir_breakpoint: | |
615 breakpoint(); | |
616 break; | |
617 | |
618 case lir_fpop_raw: | |
619 fpop(); | |
620 break; | |
621 | |
622 case lir_membar: | |
623 membar(); | |
624 break; | |
625 | |
626 case lir_membar_acquire: | |
627 membar_acquire(); | |
628 break; | |
629 | |
630 case lir_membar_release: | |
631 membar_release(); | |
632 break; | |
633 | |
634 case lir_get_thread: | |
635 get_thread(op->result_opr()); | |
636 break; | |
637 | |
638 default: | |
639 ShouldNotReachHere(); | |
640 break; | |
641 } | |
642 } | |
643 | |
644 | |
645 void LIR_Assembler::emit_op2(LIR_Op2* op) { | |
646 switch (op->code()) { | |
647 case lir_cmp: | |
648 if (op->info() != NULL) { | |
649 assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(), | |
650 "shouldn't be codeemitinfo for non-address operands"); | |
651 add_debug_info_for_null_check_here(op->info()); // exception possible | |
652 } | |
653 comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op); | |
654 break; | |
655 | |
656 case lir_cmp_l2i: | |
657 case lir_cmp_fd2i: | |
658 case lir_ucmp_fd2i: | |
659 comp_fl2i(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); | |
660 break; | |
661 | |
662 case lir_cmove: | |
663 cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr()); | |
664 break; | |
665 | |
666 case lir_shl: | |
667 case lir_shr: | |
668 case lir_ushr: | |
669 if (op->in_opr2()->is_constant()) { | |
670 shift_op(op->code(), op->in_opr1(), op->in_opr2()->as_constant_ptr()->as_jint(), op->result_opr()); | |
671 } else { | |
672 shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp_opr()); | |
673 } | |
674 break; | |
675 | |
676 case lir_add: | |
677 case lir_sub: | |
678 case lir_mul: | |
679 case lir_mul_strictfp: | |
680 case lir_div: | |
681 case lir_div_strictfp: | |
682 case lir_rem: | |
683 assert(op->fpu_pop_count() < 2, ""); | |
684 arith_op( | |
685 op->code(), | |
686 op->in_opr1(), | |
687 op->in_opr2(), | |
688 op->result_opr(), | |
689 op->info(), | |
690 op->fpu_pop_count() == 1); | |
691 break; | |
692 | |
693 case lir_abs: | |
694 case lir_sqrt: | |
695 case lir_sin: | |
696 case lir_tan: | |
697 case lir_cos: | |
698 case lir_log: | |
699 case lir_log10: | |
700 intrinsic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); | |
701 break; | |
702 | |
703 case lir_logic_and: | |
704 case lir_logic_or: | |
705 case lir_logic_xor: | |
706 logic_op( | |
707 op->code(), | |
708 op->in_opr1(), | |
709 op->in_opr2(), | |
710 op->result_opr()); | |
711 break; | |
712 | |
713 case lir_throw: | |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1301
diff
changeset
|
714 throw_op(op->in_opr1(), op->in_opr2(), op->info()); |
0 | 715 break; |
716 | |
717 default: | |
718 Unimplemented(); | |
719 break; | |
720 } | |
721 } | |
722 | |
723 | |
724 void LIR_Assembler::build_frame() { | |
725 _masm->build_frame(initial_frame_size_in_bytes()); | |
726 } | |
727 | |
728 | |
729 void LIR_Assembler::roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack) { | |
730 assert((src->is_single_fpu() && dest->is_single_stack()) || | |
731 (src->is_double_fpu() && dest->is_double_stack()), | |
732 "round_fp: rounds register -> stack location"); | |
733 | |
734 reg2stack (src, dest, src->type(), pop_fpu_stack); | |
735 } | |
736 | |
737 | |
738 void LIR_Assembler::move_op(LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned) { | |
739 if (src->is_register()) { | |
740 if (dest->is_register()) { | |
741 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
742 reg2reg(src, dest); | |
743 } else if (dest->is_stack()) { | |
744 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
745 reg2stack(src, dest, type, pop_fpu_stack); | |
746 } else if (dest->is_address()) { | |
747 reg2mem(src, dest, type, patch_code, info, pop_fpu_stack, unaligned); | |
748 } else { | |
749 ShouldNotReachHere(); | |
750 } | |
751 | |
752 } else if (src->is_stack()) { | |
753 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
754 if (dest->is_register()) { | |
755 stack2reg(src, dest, type); | |
756 } else if (dest->is_stack()) { | |
757 stack2stack(src, dest, type); | |
758 } else { | |
759 ShouldNotReachHere(); | |
760 } | |
761 | |
762 } else if (src->is_constant()) { | |
763 if (dest->is_register()) { | |
764 const2reg(src, dest, patch_code, info); // patching is possible | |
765 } else if (dest->is_stack()) { | |
766 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
767 const2stack(src, dest); | |
768 } else if (dest->is_address()) { | |
769 assert(patch_code == lir_patch_none, "no patching allowed here"); | |
770 const2mem(src, dest, type, info); | |
771 } else { | |
772 ShouldNotReachHere(); | |
773 } | |
774 | |
775 } else if (src->is_address()) { | |
776 mem2reg(src, dest, type, patch_code, info, unaligned); | |
777 | |
778 } else { | |
779 ShouldNotReachHere(); | |
780 } | |
781 } | |
782 | |
783 | |
784 void LIR_Assembler::verify_oop_map(CodeEmitInfo* info) { | |
785 #ifndef PRODUCT | |
786 if (VerifyOopMaps || VerifyOops) { | |
787 bool v = VerifyOops; | |
788 VerifyOops = true; | |
789 OopMapStream s(info->oop_map()); | |
790 while (!s.is_done()) { | |
791 OopMapValue v = s.current(); | |
792 if (v.is_oop()) { | |
793 VMReg r = v.reg(); | |
794 if (!r->is_stack()) { | |
795 stringStream st; | |
796 st.print("bad oop %s at %d", r->as_Register()->name(), _masm->offset()); | |
797 #ifdef SPARC | |
798 _masm->_verify_oop(r->as_Register(), strdup(st.as_string()), __FILE__, __LINE__); | |
799 #else | |
800 _masm->verify_oop(r->as_Register()); | |
801 #endif | |
802 } else { | |
803 _masm->verify_stack_oop(r->reg2stack() * VMRegImpl::stack_slot_size); | |
804 } | |
805 } | |
806 s.next(); | |
807 } | |
808 VerifyOops = v; | |
809 } | |
810 #endif | |
811 } |