Mercurial > hg > truffle
annotate src/share/vm/c1/c1_LIRAssembler.cpp @ 18070:a2221bbf6812
Merge
author | asaha |
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date | Tue, 17 Jun 2014 16:12:09 -0700 |
parents | 15766b73dc1d |
children | 0bf37f737702 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2013, 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" |
26 #include "c1/c1_Compilation.hpp" | |
27 #include "c1/c1_Instruction.hpp" | |
28 #include "c1/c1_InstructionPrinter.hpp" | |
29 #include "c1/c1_LIRAssembler.hpp" | |
30 #include "c1/c1_MacroAssembler.hpp" | |
31 #include "c1/c1_ValueStack.hpp" | |
32 #include "ci/ciInstance.hpp" | |
33 #ifdef TARGET_ARCH_x86 | |
34 # include "nativeInst_x86.hpp" | |
35 # include "vmreg_x86.inline.hpp" | |
36 #endif | |
37 #ifdef TARGET_ARCH_sparc | |
38 # include "nativeInst_sparc.hpp" | |
39 # include "vmreg_sparc.inline.hpp" | |
40 #endif | |
41 #ifdef TARGET_ARCH_zero | |
42 # include "nativeInst_zero.hpp" | |
43 # include "vmreg_zero.inline.hpp" | |
44 #endif | |
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45 #ifdef TARGET_ARCH_arm |
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46 # include "nativeInst_arm.hpp" |
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47 # include "vmreg_arm.inline.hpp" |
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48 #endif |
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49 #ifdef TARGET_ARCH_ppc |
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50 # include "nativeInst_ppc.hpp" |
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51 # include "vmreg_ppc.inline.hpp" |
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52 #endif |
0 | 53 |
54 | |
55 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) { | |
56 // we must have enough patching space so that call can be inserted | |
57 while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeCall::instruction_size) { | |
58 _masm->nop(); | |
59 } | |
60 patch->install(_masm, patch_code, obj, info); | |
17945 | 61 append_code_stub(patch); |
0 | 62 |
63 #ifdef ASSERT | |
1819 | 64 Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->stack()->bci()); |
0 | 65 if (patch->id() == PatchingStub::access_field_id) { |
66 switch (code) { | |
67 case Bytecodes::_putstatic: | |
68 case Bytecodes::_getstatic: | |
69 case Bytecodes::_putfield: | |
70 case Bytecodes::_getfield: | |
71 break; | |
72 default: | |
73 ShouldNotReachHere(); | |
74 } | |
75 } else if (patch->id() == PatchingStub::load_klass_id) { | |
76 switch (code) { | |
77 case Bytecodes::_new: | |
78 case Bytecodes::_anewarray: | |
79 case Bytecodes::_multianewarray: | |
80 case Bytecodes::_instanceof: | |
81 case Bytecodes::_checkcast: | |
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82 break; |
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83 default: |
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84 ShouldNotReachHere(); |
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85 } |
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86 } else if (patch->id() == PatchingStub::load_mirror_id) { |
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87 switch (code) { |
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88 case Bytecodes::_putstatic: |
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89 case Bytecodes::_getstatic: |
0 | 90 case Bytecodes::_ldc: |
91 case Bytecodes::_ldc_w: | |
92 break; | |
93 default: | |
94 ShouldNotReachHere(); | |
95 } | |
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96 } else if (patch->id() == PatchingStub::load_appendix_id) { |
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97 Bytecodes::Code bc_raw = info->scope()->method()->raw_code_at_bci(info->stack()->bci()); |
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98 assert(Bytecodes::has_optional_appendix(bc_raw), "unexpected appendix resolution"); |
0 | 99 } else { |
100 ShouldNotReachHere(); | |
101 } | |
102 #endif | |
103 } | |
104 | |
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105 PatchingStub::PatchID LIR_Assembler::patching_id(CodeEmitInfo* info) { |
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106 IRScope* scope = info->scope(); |
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107 Bytecodes::Code bc_raw = scope->method()->raw_code_at_bci(info->stack()->bci()); |
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108 if (Bytecodes::has_optional_appendix(bc_raw)) { |
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109 return PatchingStub::load_appendix_id; |
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110 } |
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111 return PatchingStub::load_mirror_id; |
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112 } |
0 | 113 |
114 //--------------------------------------------------------------- | |
115 | |
116 | |
117 LIR_Assembler::LIR_Assembler(Compilation* c): | |
118 _compilation(c) | |
119 , _masm(c->masm()) | |
342 | 120 , _bs(Universe::heap()->barrier_set()) |
0 | 121 , _frame_map(c->frame_map()) |
122 , _current_block(NULL) | |
123 , _pending_non_safepoint(NULL) | |
124 , _pending_non_safepoint_offset(0) | |
125 { | |
126 _slow_case_stubs = new CodeStubList(); | |
127 } | |
128 | |
129 | |
130 LIR_Assembler::~LIR_Assembler() { | |
131 } | |
132 | |
133 | |
134 void LIR_Assembler::check_codespace() { | |
135 CodeSection* cs = _masm->code_section(); | |
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136 if (cs->remaining() < (int)(NOT_LP64(1*K)LP64_ONLY(2*K))) { |
0 | 137 BAILOUT("CodeBuffer overflow"); |
138 } | |
139 } | |
140 | |
141 | |
17945 | 142 void LIR_Assembler::append_code_stub(CodeStub* stub) { |
0 | 143 _slow_case_stubs->append(stub); |
144 } | |
145 | |
146 void LIR_Assembler::emit_stubs(CodeStubList* stub_list) { | |
147 for (int m = 0; m < stub_list->length(); m++) { | |
148 CodeStub* s = (*stub_list)[m]; | |
149 | |
150 check_codespace(); | |
151 CHECK_BAILOUT(); | |
152 | |
153 #ifndef PRODUCT | |
154 if (CommentedAssembly) { | |
155 stringStream st; | |
156 s->print_name(&st); | |
157 st.print(" slow case"); | |
158 _masm->block_comment(st.as_string()); | |
159 } | |
160 #endif | |
161 s->emit_code(this); | |
162 #ifdef ASSERT | |
163 s->assert_no_unbound_labels(); | |
164 #endif | |
165 } | |
166 } | |
167 | |
168 | |
169 void LIR_Assembler::emit_slow_case_stubs() { | |
170 emit_stubs(_slow_case_stubs); | |
171 } | |
172 | |
173 | |
174 bool LIR_Assembler::needs_icache(ciMethod* method) const { | |
175 return !method->is_static(); | |
176 } | |
177 | |
178 | |
179 int LIR_Assembler::code_offset() const { | |
180 return _masm->offset(); | |
181 } | |
182 | |
183 | |
184 address LIR_Assembler::pc() const { | |
185 return _masm->pc(); | |
186 } | |
187 | |
188 | |
189 void LIR_Assembler::emit_exception_entries(ExceptionInfoList* info_list) { | |
190 for (int i = 0; i < info_list->length(); i++) { | |
191 XHandlers* handlers = info_list->at(i)->exception_handlers(); | |
192 | |
193 for (int j = 0; j < handlers->length(); j++) { | |
194 XHandler* handler = handlers->handler_at(j); | |
195 assert(handler->lir_op_id() != -1, "handler not processed by LinearScan"); | |
196 assert(handler->entry_code() == NULL || | |
197 handler->entry_code()->instructions_list()->last()->code() == lir_branch || | |
198 handler->entry_code()->instructions_list()->last()->code() == lir_delay_slot, "last operation must be branch"); | |
199 | |
200 if (handler->entry_pco() == -1) { | |
201 // entry code not emitted yet | |
202 if (handler->entry_code() != NULL && handler->entry_code()->instructions_list()->length() > 1) { | |
203 handler->set_entry_pco(code_offset()); | |
204 if (CommentedAssembly) { | |
205 _masm->block_comment("Exception adapter block"); | |
206 } | |
207 emit_lir_list(handler->entry_code()); | |
208 } else { | |
209 handler->set_entry_pco(handler->entry_block()->exception_handler_pco()); | |
210 } | |
211 | |
212 assert(handler->entry_pco() != -1, "must be set now"); | |
213 } | |
214 } | |
215 } | |
216 } | |
217 | |
218 | |
219 void LIR_Assembler::emit_code(BlockList* hir) { | |
220 if (PrintLIR) { | |
221 print_LIR(hir); | |
222 } | |
223 | |
224 int n = hir->length(); | |
225 for (int i = 0; i < n; i++) { | |
226 emit_block(hir->at(i)); | |
227 CHECK_BAILOUT(); | |
228 } | |
229 | |
230 flush_debug_info(code_offset()); | |
231 | |
232 DEBUG_ONLY(check_no_unbound_labels()); | |
233 } | |
234 | |
235 | |
236 void LIR_Assembler::emit_block(BlockBegin* block) { | |
237 if (block->is_set(BlockBegin::backward_branch_target_flag)) { | |
238 align_backward_branch_target(); | |
239 } | |
240 | |
241 // if this block is the start of an exception handler, record the | |
242 // PC offset of the first instruction for later construction of | |
243 // the ExceptionHandlerTable | |
244 if (block->is_set(BlockBegin::exception_entry_flag)) { | |
245 block->set_exception_handler_pco(code_offset()); | |
246 } | |
247 | |
248 #ifndef PRODUCT | |
249 if (PrintLIRWithAssembly) { | |
250 // don't print Phi's | |
251 InstructionPrinter ip(false); | |
252 block->print(ip); | |
253 } | |
254 #endif /* PRODUCT */ | |
255 | |
256 assert(block->lir() != NULL, "must have LIR"); | |
304 | 257 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
0 | 258 |
259 #ifndef PRODUCT | |
260 if (CommentedAssembly) { | |
261 stringStream st; | |
1819 | 262 st.print_cr(" block B%d [%d, %d]", block->block_id(), block->bci(), block->end()->printable_bci()); |
0 | 263 _masm->block_comment(st.as_string()); |
264 } | |
265 #endif | |
266 | |
267 emit_lir_list(block->lir()); | |
268 | |
304 | 269 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
0 | 270 } |
271 | |
272 | |
273 void LIR_Assembler::emit_lir_list(LIR_List* list) { | |
274 peephole(list); | |
275 | |
276 int n = list->length(); | |
277 for (int i = 0; i < n; i++) { | |
278 LIR_Op* op = list->at(i); | |
279 | |
280 check_codespace(); | |
281 CHECK_BAILOUT(); | |
282 | |
283 #ifndef PRODUCT | |
284 if (CommentedAssembly) { | |
285 // Don't record out every op since that's too verbose. Print | |
286 // branches since they include block and stub names. Also print | |
287 // patching moves since they generate funny looking code. | |
288 if (op->code() == lir_branch || | |
289 (op->code() == lir_move && op->as_Op1()->patch_code() != lir_patch_none)) { | |
290 stringStream st; | |
291 op->print_on(&st); | |
292 _masm->block_comment(st.as_string()); | |
293 } | |
294 } | |
295 if (PrintLIRWithAssembly) { | |
296 // print out the LIR operation followed by the resulting assembly | |
297 list->at(i)->print(); tty->cr(); | |
298 } | |
299 #endif /* PRODUCT */ | |
300 | |
301 op->emit_code(this); | |
302 | |
303 if (compilation()->debug_info_recorder()->recording_non_safepoints()) { | |
304 process_debug_info(op); | |
305 } | |
306 | |
307 #ifndef PRODUCT | |
308 if (PrintLIRWithAssembly) { | |
309 _masm->code()->decode(); | |
310 } | |
311 #endif /* PRODUCT */ | |
312 } | |
313 } | |
314 | |
315 #ifdef ASSERT | |
316 void LIR_Assembler::check_no_unbound_labels() { | |
317 CHECK_BAILOUT(); | |
318 | |
319 for (int i = 0; i < _branch_target_blocks.length() - 1; i++) { | |
320 if (!_branch_target_blocks.at(i)->label()->is_bound()) { | |
321 tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id()); | |
322 assert(false, "unbound label"); | |
323 } | |
324 } | |
325 } | |
326 #endif | |
327 | |
328 //----------------------------------debug info-------------------------------- | |
329 | |
330 | |
331 void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) { | |
332 _masm->code_section()->relocate(pc(), relocInfo::poll_type); | |
333 int pc_offset = code_offset(); | |
334 flush_debug_info(pc_offset); | |
335 info->record_debug_info(compilation()->debug_info_recorder(), pc_offset); | |
336 if (info->exception_handlers() != NULL) { | |
337 compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers()); | |
338 } | |
339 } | |
340 | |
341 | |
1564 | 342 void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo) { |
0 | 343 flush_debug_info(pc_offset); |
1564 | 344 cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset); |
0 | 345 if (cinfo->exception_handlers() != NULL) { |
346 compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers()); | |
347 } | |
348 } | |
349 | |
350 static ValueStack* debug_info(Instruction* ins) { | |
351 StateSplit* ss = ins->as_StateSplit(); | |
352 if (ss != NULL) return ss->state(); | |
1819 | 353 return ins->state_before(); |
0 | 354 } |
355 | |
356 void LIR_Assembler::process_debug_info(LIR_Op* op) { | |
357 Instruction* src = op->source(); | |
358 if (src == NULL) return; | |
359 int pc_offset = code_offset(); | |
360 if (_pending_non_safepoint == src) { | |
361 _pending_non_safepoint_offset = pc_offset; | |
362 return; | |
363 } | |
364 ValueStack* vstack = debug_info(src); | |
365 if (vstack == NULL) return; | |
366 if (_pending_non_safepoint != NULL) { | |
367 // Got some old debug info. Get rid of it. | |
1819 | 368 if (debug_info(_pending_non_safepoint) == vstack) { |
0 | 369 _pending_non_safepoint_offset = pc_offset; |
370 return; | |
371 } | |
372 if (_pending_non_safepoint_offset < pc_offset) { | |
373 record_non_safepoint_debug_info(); | |
374 } | |
375 _pending_non_safepoint = NULL; | |
376 } | |
377 // Remember the debug info. | |
378 if (pc_offset > compilation()->debug_info_recorder()->last_pc_offset()) { | |
379 _pending_non_safepoint = src; | |
380 _pending_non_safepoint_offset = pc_offset; | |
381 } | |
382 } | |
383 | |
384 // Index caller states in s, where 0 is the oldest, 1 its callee, etc. | |
385 // Return NULL if n is too large. | |
386 // Returns the caller_bci for the next-younger state, also. | |
387 static ValueStack* nth_oldest(ValueStack* s, int n, int& bci_result) { | |
388 ValueStack* t = s; | |
389 for (int i = 0; i < n; i++) { | |
390 if (t == NULL) break; | |
391 t = t->caller_state(); | |
392 } | |
393 if (t == NULL) return NULL; | |
394 for (;;) { | |
395 ValueStack* tc = t->caller_state(); | |
396 if (tc == NULL) return s; | |
397 t = tc; | |
1819 | 398 bci_result = tc->bci(); |
0 | 399 s = s->caller_state(); |
400 } | |
401 } | |
402 | |
403 void LIR_Assembler::record_non_safepoint_debug_info() { | |
404 int pc_offset = _pending_non_safepoint_offset; | |
405 ValueStack* vstack = debug_info(_pending_non_safepoint); | |
1819 | 406 int bci = vstack->bci(); |
0 | 407 |
408 DebugInformationRecorder* debug_info = compilation()->debug_info_recorder(); | |
409 assert(debug_info->recording_non_safepoints(), "sanity"); | |
410 | |
411 debug_info->add_non_safepoint(pc_offset); | |
412 | |
413 // Visit scopes from oldest to youngest. | |
414 for (int n = 0; ; n++) { | |
415 int s_bci = bci; | |
416 ValueStack* s = nth_oldest(vstack, n, s_bci); | |
417 if (s == NULL) break; | |
418 IRScope* scope = s->scope(); | |
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419 //Always pass false for reexecute since these ScopeDescs are never used for deopt |
1819 | 420 debug_info->describe_scope(pc_offset, scope->method(), s->bci(), false/*reexecute*/); |
0 | 421 } |
422 | |
423 debug_info->end_non_safepoint(pc_offset); | |
424 } | |
425 | |
426 | |
427 void LIR_Assembler::add_debug_info_for_null_check_here(CodeEmitInfo* cinfo) { | |
428 add_debug_info_for_null_check(code_offset(), cinfo); | |
429 } | |
430 | |
431 void LIR_Assembler::add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo) { | |
432 ImplicitNullCheckStub* stub = new ImplicitNullCheckStub(pc_offset, cinfo); | |
17945 | 433 append_code_stub(stub); |
0 | 434 } |
435 | |
436 void LIR_Assembler::add_debug_info_for_div0_here(CodeEmitInfo* info) { | |
437 add_debug_info_for_div0(code_offset(), info); | |
438 } | |
439 | |
440 void LIR_Assembler::add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo) { | |
441 DivByZeroStub* stub = new DivByZeroStub(pc_offset, cinfo); | |
17945 | 442 append_code_stub(stub); |
0 | 443 } |
444 | |
445 void LIR_Assembler::emit_rtcall(LIR_OpRTCall* op) { | |
446 rt_call(op->result_opr(), op->addr(), op->arguments(), op->tmp(), op->info()); | |
447 } | |
448 | |
449 | |
450 void LIR_Assembler::emit_call(LIR_OpJavaCall* op) { | |
451 verify_oop_map(op->info()); | |
452 | |
453 if (os::is_MP()) { | |
454 // must align calls sites, otherwise they can't be updated atomically on MP hardware | |
455 align_call(op->code()); | |
456 } | |
457 | |
458 // emit the static call stub stuff out of line | |
459 emit_static_call_stub(); | |
460 | |
461 switch (op->code()) { | |
462 case lir_static_call: | |
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463 case lir_dynamic_call: |
1295 | 464 call(op, relocInfo::static_call_type); |
0 | 465 break; |
466 case lir_optvirtual_call: | |
1295 | 467 call(op, relocInfo::opt_virtual_call_type); |
0 | 468 break; |
469 case lir_icvirtual_call: | |
1295 | 470 ic_call(op); |
0 | 471 break; |
472 case lir_virtual_call: | |
1295 | 473 vtable_call(op); |
0 | 474 break; |
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475 default: |
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476 fatal(err_msg_res("unexpected op code: %s", op->name())); |
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477 break; |
0 | 478 } |
1295 | 479 |
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480 // JSR 292 |
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481 // Record if this method has MethodHandle invokes. |
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482 if (op->is_method_handle_invoke()) { |
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483 compilation()->set_has_method_handle_invokes(true); |
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484 } |
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485 |
304 | 486 #if defined(X86) && defined(TIERED) |
0 | 487 // C2 leave fpu stack dirty clean it |
488 if (UseSSE < 2) { | |
489 int i; | |
490 for ( i = 1; i <= 7 ; i++ ) { | |
491 ffree(i); | |
492 } | |
493 if (!op->result_opr()->is_float_kind()) { | |
494 ffree(0); | |
495 } | |
496 } | |
304 | 497 #endif // X86 && TIERED |
0 | 498 } |
499 | |
500 | |
501 void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) { | |
502 _masm->bind (*(op->label())); | |
503 } | |
504 | |
505 | |
506 void LIR_Assembler::emit_op1(LIR_Op1* op) { | |
507 switch (op->code()) { | |
508 case lir_move: | |
509 if (op->move_kind() == lir_move_volatile) { | |
510 assert(op->patch_code() == lir_patch_none, "can't patch volatiles"); | |
511 volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info()); | |
512 } else { | |
513 move_op(op->in_opr(), op->result_opr(), op->type(), | |
2002 | 514 op->patch_code(), op->info(), op->pop_fpu_stack(), |
515 op->move_kind() == lir_move_unaligned, | |
516 op->move_kind() == lir_move_wide); | |
0 | 517 } |
518 break; | |
519 | |
520 case lir_prefetchr: | |
521 prefetchr(op->in_opr()); | |
522 break; | |
523 | |
524 case lir_prefetchw: | |
525 prefetchw(op->in_opr()); | |
526 break; | |
527 | |
528 case lir_roundfp: { | |
529 LIR_OpRoundFP* round_op = op->as_OpRoundFP(); | |
530 roundfp_op(round_op->in_opr(), round_op->tmp(), round_op->result_opr(), round_op->pop_fpu_stack()); | |
531 break; | |
532 } | |
533 | |
534 case lir_return: | |
535 return_op(op->in_opr()); | |
536 break; | |
537 | |
538 case lir_safepoint: | |
539 if (compilation()->debug_info_recorder()->last_pc_offset() == code_offset()) { | |
540 _masm->nop(); | |
541 } | |
542 safepoint_poll(op->in_opr(), op->info()); | |
543 break; | |
544 | |
545 case lir_fxch: | |
546 fxch(op->in_opr()->as_jint()); | |
547 break; | |
548 | |
549 case lir_fld: | |
550 fld(op->in_opr()->as_jint()); | |
551 break; | |
552 | |
553 case lir_ffree: | |
554 ffree(op->in_opr()->as_jint()); | |
555 break; | |
556 | |
557 case lir_branch: | |
558 break; | |
559 | |
560 case lir_push: | |
561 push(op->in_opr()); | |
562 break; | |
563 | |
564 case lir_pop: | |
565 pop(op->in_opr()); | |
566 break; | |
567 | |
568 case lir_neg: | |
569 negate(op->in_opr(), op->result_opr()); | |
570 break; | |
571 | |
572 case lir_leal: | |
573 leal(op->in_opr(), op->result_opr()); | |
574 break; | |
575 | |
576 case lir_null_check: | |
577 if (GenerateCompilerNullChecks) { | |
578 add_debug_info_for_null_check_here(op->info()); | |
579 | |
580 if (op->in_opr()->is_single_cpu()) { | |
581 _masm->null_check(op->in_opr()->as_register()); | |
582 } else { | |
583 Unimplemented(); | |
584 } | |
585 } | |
586 break; | |
587 | |
588 case lir_monaddr: | |
589 monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr()); | |
590 break; | |
591 | |
1783 | 592 #ifdef SPARC |
593 case lir_pack64: | |
594 pack64(op->in_opr(), op->result_opr()); | |
595 break; | |
596 | |
597 case lir_unpack64: | |
598 unpack64(op->in_opr(), op->result_opr()); | |
599 break; | |
600 #endif | |
601 | |
1378
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602 case lir_unwind: |
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603 unwind_op(op->in_opr()); |
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604 break; |
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605 |
0 | 606 default: |
607 Unimplemented(); | |
608 break; | |
609 } | |
610 } | |
611 | |
612 | |
613 void LIR_Assembler::emit_op0(LIR_Op0* op) { | |
614 switch (op->code()) { | |
615 case lir_word_align: { | |
616 while (code_offset() % BytesPerWord != 0) { | |
617 _masm->nop(); | |
618 } | |
619 break; | |
620 } | |
621 | |
622 case lir_nop: | |
623 assert(op->info() == NULL, "not supported"); | |
624 _masm->nop(); | |
625 break; | |
626 | |
627 case lir_label: | |
628 Unimplemented(); | |
629 break; | |
630 | |
631 case lir_build_frame: | |
632 build_frame(); | |
633 break; | |
634 | |
635 case lir_std_entry: | |
636 // init offsets | |
637 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
638 _masm->align(CodeEntryAlignment); | |
639 if (needs_icache(compilation()->method())) { | |
640 check_icache(); | |
641 } | |
642 offsets()->set_value(CodeOffsets::Verified_Entry, _masm->offset()); | |
643 _masm->verified_entry(); | |
644 build_frame(); | |
645 offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset()); | |
646 break; | |
647 | |
648 case lir_osr_entry: | |
649 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
650 osr_entry(); | |
651 break; | |
652 | |
653 case lir_24bit_FPU: | |
654 set_24bit_FPU(); | |
655 break; | |
656 | |
657 case lir_reset_FPU: | |
658 reset_FPU(); | |
659 break; | |
660 | |
661 case lir_breakpoint: | |
662 breakpoint(); | |
663 break; | |
664 | |
665 case lir_fpop_raw: | |
666 fpop(); | |
667 break; | |
668 | |
669 case lir_membar: | |
670 membar(); | |
671 break; | |
672 | |
673 case lir_membar_acquire: | |
674 membar_acquire(); | |
675 break; | |
676 | |
677 case lir_membar_release: | |
678 membar_release(); | |
679 break; | |
680 | |
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681 case lir_membar_loadload: |
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682 membar_loadload(); |
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683 break; |
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684 |
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685 case lir_membar_storestore: |
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686 membar_storestore(); |
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687 break; |
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688 |
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689 case lir_membar_loadstore: |
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690 membar_loadstore(); |
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691 break; |
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692 |
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693 case lir_membar_storeload: |
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694 membar_storeload(); |
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|
695 break; |
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|
696 |
0 | 697 case lir_get_thread: |
698 get_thread(op->result_opr()); | |
699 break; | |
700 | |
701 default: | |
702 ShouldNotReachHere(); | |
703 break; | |
704 } | |
705 } | |
706 | |
707 | |
708 void LIR_Assembler::emit_op2(LIR_Op2* op) { | |
709 switch (op->code()) { | |
710 case lir_cmp: | |
711 if (op->info() != NULL) { | |
712 assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(), | |
713 "shouldn't be codeemitinfo for non-address operands"); | |
714 add_debug_info_for_null_check_here(op->info()); // exception possible | |
715 } | |
716 comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op); | |
717 break; | |
718 | |
719 case lir_cmp_l2i: | |
720 case lir_cmp_fd2i: | |
721 case lir_ucmp_fd2i: | |
722 comp_fl2i(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); | |
723 break; | |
724 | |
725 case lir_cmove: | |
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7009231: C1: Incorrect CAS code for longs on SPARC 32bit
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726 cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->type()); |
0 | 727 break; |
728 | |
729 case lir_shl: | |
730 case lir_shr: | |
731 case lir_ushr: | |
732 if (op->in_opr2()->is_constant()) { | |
733 shift_op(op->code(), op->in_opr1(), op->in_opr2()->as_constant_ptr()->as_jint(), op->result_opr()); | |
734 } else { | |
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735 shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp1_opr()); |
0 | 736 } |
737 break; | |
738 | |
739 case lir_add: | |
740 case lir_sub: | |
741 case lir_mul: | |
742 case lir_mul_strictfp: | |
743 case lir_div: | |
744 case lir_div_strictfp: | |
745 case lir_rem: | |
746 assert(op->fpu_pop_count() < 2, ""); | |
747 arith_op( | |
748 op->code(), | |
749 op->in_opr1(), | |
750 op->in_opr2(), | |
751 op->result_opr(), | |
752 op->info(), | |
753 op->fpu_pop_count() == 1); | |
754 break; | |
755 | |
756 case lir_abs: | |
757 case lir_sqrt: | |
758 case lir_sin: | |
759 case lir_tan: | |
760 case lir_cos: | |
761 case lir_log: | |
762 case lir_log10: | |
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763 case lir_exp: |
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764 case lir_pow: |
0 | 765 intrinsic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); |
766 break; | |
767 | |
768 case lir_logic_and: | |
769 case lir_logic_or: | |
770 case lir_logic_xor: | |
771 logic_op( | |
772 op->code(), | |
773 op->in_opr1(), | |
774 op->in_opr2(), | |
775 op->result_opr()); | |
776 break; | |
777 | |
778 case lir_throw: | |
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changeset
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779 throw_op(op->in_opr1(), op->in_opr2(), op->info()); |
0 | 780 break; |
781 | |
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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782 case lir_xadd: |
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
783 case lir_xchg: |
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
784 atomic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp1_opr()); |
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
785 break; |
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|
786 |
0 | 787 default: |
788 Unimplemented(); | |
789 break; | |
790 } | |
791 } | |
792 | |
793 | |
794 void LIR_Assembler::build_frame() { | |
795 _masm->build_frame(initial_frame_size_in_bytes()); | |
796 } | |
797 | |
798 | |
799 void LIR_Assembler::roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack) { | |
800 assert((src->is_single_fpu() && dest->is_single_stack()) || | |
801 (src->is_double_fpu() && dest->is_double_stack()), | |
802 "round_fp: rounds register -> stack location"); | |
803 | |
804 reg2stack (src, dest, src->type(), pop_fpu_stack); | |
805 } | |
806 | |
807 | |
2002 | 808 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, bool wide) { |
0 | 809 if (src->is_register()) { |
810 if (dest->is_register()) { | |
811 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
812 reg2reg(src, dest); | |
813 } else if (dest->is_stack()) { | |
814 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
815 reg2stack(src, dest, type, pop_fpu_stack); | |
816 } else if (dest->is_address()) { | |
2002 | 817 reg2mem(src, dest, type, patch_code, info, pop_fpu_stack, wide, unaligned); |
0 | 818 } else { |
819 ShouldNotReachHere(); | |
820 } | |
821 | |
822 } else if (src->is_stack()) { | |
823 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
824 if (dest->is_register()) { | |
825 stack2reg(src, dest, type); | |
826 } else if (dest->is_stack()) { | |
827 stack2stack(src, dest, type); | |
828 } else { | |
829 ShouldNotReachHere(); | |
830 } | |
831 | |
832 } else if (src->is_constant()) { | |
833 if (dest->is_register()) { | |
834 const2reg(src, dest, patch_code, info); // patching is possible | |
835 } else if (dest->is_stack()) { | |
836 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
837 const2stack(src, dest); | |
838 } else if (dest->is_address()) { | |
839 assert(patch_code == lir_patch_none, "no patching allowed here"); | |
2002 | 840 const2mem(src, dest, type, info, wide); |
0 | 841 } else { |
842 ShouldNotReachHere(); | |
843 } | |
844 | |
845 } else if (src->is_address()) { | |
2002 | 846 mem2reg(src, dest, type, patch_code, info, wide, unaligned); |
0 | 847 |
848 } else { | |
849 ShouldNotReachHere(); | |
850 } | |
851 } | |
852 | |
853 | |
854 void LIR_Assembler::verify_oop_map(CodeEmitInfo* info) { | |
855 #ifndef PRODUCT | |
17623
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8011391: C1: assert(code_offset() - offset == NativeInstruction::nop_instruction_size) failed: only one instruction can go in a delay slot
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|
856 if (VerifyOops) { |
0 | 857 OopMapStream s(info->oop_map()); |
858 while (!s.is_done()) { | |
859 OopMapValue v = s.current(); | |
860 if (v.is_oop()) { | |
861 VMReg r = v.reg(); | |
862 if (!r->is_stack()) { | |
863 stringStream st; | |
864 st.print("bad oop %s at %d", r->as_Register()->name(), _masm->offset()); | |
865 #ifdef SPARC | |
866 _masm->_verify_oop(r->as_Register(), strdup(st.as_string()), __FILE__, __LINE__); | |
867 #else | |
868 _masm->verify_oop(r->as_Register()); | |
869 #endif | |
870 } else { | |
871 _masm->verify_stack_oop(r->reg2stack() * VMRegImpl::stack_slot_size); | |
872 } | |
873 } | |
2451
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6528013: C1 CTW failure with -XX:+VerifyOops assert(allocates2(pc),"")
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874 check_codespace(); |
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6528013: C1 CTW failure with -XX:+VerifyOops assert(allocates2(pc),"")
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875 CHECK_BAILOUT(); |
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876 |
0 | 877 s.next(); |
878 } | |
879 } | |
880 #endif | |
881 } |