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annotate src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp @ 20070:aa8e0e2c5751
StandardOp.NoOp: assert that the right instruction is #replaced.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 30 Mar 2015 10:08:38 +0200 |
parents | 89152779163c |
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rev | line source |
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0 | 1 /* |
17524 | 2 * Copyright (c) 1999, 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 * | |
1552
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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_CodeStubs.hpp" | |
27 #include "c1/c1_FrameMap.hpp" | |
28 #include "c1/c1_LIRAssembler.hpp" | |
29 #include "c1/c1_MacroAssembler.hpp" | |
30 #include "c1/c1_Runtime1.hpp" | |
31 #include "nativeInst_sparc.hpp" | |
32 #include "runtime/sharedRuntime.hpp" | |
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33 #include "utilities/macros.hpp" |
1972 | 34 #include "vmreg_sparc.inline.hpp" |
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35 #if INCLUDE_ALL_GCS |
1972 | 36 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
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37 #endif // INCLUDE_ALL_GCS |
0 | 38 |
39 #define __ ce->masm()-> | |
40 | |
41 RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, | |
42 bool throw_index_out_of_bounds_exception) | |
43 : _throw_index_out_of_bounds_exception(throw_index_out_of_bounds_exception) | |
44 , _index(index) | |
45 { | |
1819 | 46 assert(info != NULL, "must have info"); |
0 | 47 _info = new CodeEmitInfo(info); |
48 } | |
49 | |
50 | |
51 void RangeCheckStub::emit_code(LIR_Assembler* ce) { | |
52 __ bind(_entry); | |
53 | |
8860 | 54 if (_info->deoptimize_on_exception()) { |
55 address a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); | |
56 __ call(a, relocInfo::runtime_call_type); | |
57 __ delayed()->nop(); | |
58 ce->add_call_info_here(_info); | |
59 ce->verify_oop_map(_info); | |
60 debug_only(__ should_not_reach_here()); | |
61 return; | |
62 } | |
63 | |
0 | 64 if (_index->is_register()) { |
65 __ mov(_index->as_register(), G4); | |
66 } else { | |
67 __ set(_index->as_jint(), G4); | |
68 } | |
69 if (_throw_index_out_of_bounds_exception) { | |
70 __ call(Runtime1::entry_for(Runtime1::throw_index_exception_id), relocInfo::runtime_call_type); | |
71 } else { | |
72 __ call(Runtime1::entry_for(Runtime1::throw_range_check_failed_id), relocInfo::runtime_call_type); | |
73 } | |
74 __ delayed()->nop(); | |
75 ce->add_call_info_here(_info); | |
76 ce->verify_oop_map(_info); | |
8860 | 77 debug_only(__ should_not_reach_here()); |
78 } | |
79 | |
80 PredicateFailedStub::PredicateFailedStub(CodeEmitInfo* info) { | |
81 _info = new CodeEmitInfo(info); | |
0 | 82 } |
83 | |
8860 | 84 void PredicateFailedStub::emit_code(LIR_Assembler* ce) { |
85 __ bind(_entry); | |
86 address a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); | |
87 __ call(a, relocInfo::runtime_call_type); | |
88 __ delayed()->nop(); | |
89 ce->add_call_info_here(_info); | |
90 ce->verify_oop_map(_info); | |
91 debug_only(__ should_not_reach_here()); | |
92 } | |
0 | 93 |
94 void CounterOverflowStub::emit_code(LIR_Assembler* ce) { | |
95 __ bind(_entry); | |
96 __ set(_bci, G4); | |
97 __ call(Runtime1::entry_for(Runtime1::counter_overflow_id), relocInfo::runtime_call_type); | |
1783 | 98 __ delayed()->mov_or_nop(_method->as_register(), G5); |
0 | 99 ce->add_call_info_here(_info); |
100 ce->verify_oop_map(_info); | |
101 | |
102 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
103 __ delayed()->nop(); | |
104 } | |
105 | |
106 | |
107 void DivByZeroStub::emit_code(LIR_Assembler* ce) { | |
108 if (_offset != -1) { | |
109 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); | |
110 } | |
111 __ bind(_entry); | |
112 __ call(Runtime1::entry_for(Runtime1::throw_div0_exception_id), relocInfo::runtime_call_type); | |
113 __ delayed()->nop(); | |
114 ce->add_call_info_here(_info); | |
115 ce->verify_oop_map(_info); | |
116 #ifdef ASSERT | |
117 __ should_not_reach_here(); | |
118 #endif | |
119 } | |
120 | |
121 | |
122 void ImplicitNullCheckStub::emit_code(LIR_Assembler* ce) { | |
8860 | 123 address a; |
124 if (_info->deoptimize_on_exception()) { | |
125 // Deoptimize, do not throw the exception, because it is probably wrong to do it here. | |
126 a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); | |
127 } else { | |
128 a = Runtime1::entry_for(Runtime1::throw_null_pointer_exception_id); | |
129 } | |
130 | |
0 | 131 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); |
132 __ bind(_entry); | |
8860 | 133 __ call(a, relocInfo::runtime_call_type); |
0 | 134 __ delayed()->nop(); |
135 ce->add_call_info_here(_info); | |
136 ce->verify_oop_map(_info); | |
137 #ifdef ASSERT | |
138 __ should_not_reach_here(); | |
139 #endif | |
140 } | |
141 | |
142 | |
143 // Implementation of SimpleExceptionStub | |
144 // Note: %g1 and %g3 are already in use | |
145 void SimpleExceptionStub::emit_code(LIR_Assembler* ce) { | |
146 __ bind(_entry); | |
147 __ call(Runtime1::entry_for(_stub), relocInfo::runtime_call_type); | |
148 | |
149 if (_obj->is_valid()) { | |
150 __ delayed()->mov(_obj->as_register(), G4); // _obj contains the optional argument to the stub | |
151 } else { | |
152 __ delayed()->mov(G0, G4); | |
153 } | |
154 ce->add_call_info_here(_info); | |
155 #ifdef ASSERT | |
156 __ should_not_reach_here(); | |
157 #endif | |
158 } | |
159 | |
160 | |
161 // Implementation of NewInstanceStub | |
162 | |
163 NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, Runtime1::StubID stub_id) { | |
164 _result = result; | |
165 _klass = klass; | |
166 _klass_reg = klass_reg; | |
167 _info = new CodeEmitInfo(info); | |
168 assert(stub_id == Runtime1::new_instance_id || | |
169 stub_id == Runtime1::fast_new_instance_id || | |
170 stub_id == Runtime1::fast_new_instance_init_check_id, | |
171 "need new_instance id"); | |
172 _stub_id = stub_id; | |
173 } | |
174 | |
175 | |
176 void NewInstanceStub::emit_code(LIR_Assembler* ce) { | |
177 __ bind(_entry); | |
178 __ call(Runtime1::entry_for(_stub_id), relocInfo::runtime_call_type); | |
179 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
180 ce->add_call_info_here(_info); | |
181 ce->verify_oop_map(_info); | |
182 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
183 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
184 } | |
185 | |
186 | |
187 // Implementation of NewTypeArrayStub | |
188 NewTypeArrayStub::NewTypeArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
189 _klass_reg = klass_reg; | |
190 _length = length; | |
191 _result = result; | |
192 _info = new CodeEmitInfo(info); | |
193 } | |
194 | |
195 | |
196 void NewTypeArrayStub::emit_code(LIR_Assembler* ce) { | |
197 __ bind(_entry); | |
198 | |
199 __ mov(_length->as_register(), G4); | |
200 __ call(Runtime1::entry_for(Runtime1::new_type_array_id), relocInfo::runtime_call_type); | |
201 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
202 ce->add_call_info_here(_info); | |
203 ce->verify_oop_map(_info); | |
204 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
205 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
206 } | |
207 | |
208 | |
209 // Implementation of NewObjectArrayStub | |
210 | |
211 NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
212 _klass_reg = klass_reg; | |
213 _length = length; | |
214 _result = result; | |
215 _info = new CodeEmitInfo(info); | |
216 } | |
217 | |
218 | |
219 void NewObjectArrayStub::emit_code(LIR_Assembler* ce) { | |
220 __ bind(_entry); | |
221 | |
222 __ mov(_length->as_register(), G4); | |
223 __ call(Runtime1::entry_for(Runtime1::new_object_array_id), relocInfo::runtime_call_type); | |
224 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
225 ce->add_call_info_here(_info); | |
226 ce->verify_oop_map(_info); | |
227 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
228 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
229 } | |
230 | |
231 | |
232 // Implementation of MonitorAccessStubs | |
233 MonitorEnterStub::MonitorEnterStub(LIR_Opr obj_reg, LIR_Opr lock_reg, CodeEmitInfo* info) | |
234 : MonitorAccessStub(obj_reg, lock_reg) { | |
235 _info = new CodeEmitInfo(info); | |
236 } | |
237 | |
238 | |
239 void MonitorEnterStub::emit_code(LIR_Assembler* ce) { | |
240 __ bind(_entry); | |
241 __ mov(_obj_reg->as_register(), G4); | |
242 if (ce->compilation()->has_fpu_code()) { | |
243 __ call(Runtime1::entry_for(Runtime1::monitorenter_id), relocInfo::runtime_call_type); | |
244 } else { | |
245 __ call(Runtime1::entry_for(Runtime1::monitorenter_nofpu_id), relocInfo::runtime_call_type); | |
246 } | |
247 __ delayed()->mov_or_nop(_lock_reg->as_register(), G5); | |
248 ce->add_call_info_here(_info); | |
249 ce->verify_oop_map(_info); | |
250 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
251 __ delayed()->nop(); | |
252 } | |
253 | |
254 | |
255 void MonitorExitStub::emit_code(LIR_Assembler* ce) { | |
256 __ bind(_entry); | |
257 if (_compute_lock) { | |
258 ce->monitor_address(_monitor_ix, _lock_reg); | |
259 } | |
260 if (ce->compilation()->has_fpu_code()) { | |
261 __ call(Runtime1::entry_for(Runtime1::monitorexit_id), relocInfo::runtime_call_type); | |
262 } else { | |
263 __ call(Runtime1::entry_for(Runtime1::monitorexit_nofpu_id), relocInfo::runtime_call_type); | |
264 } | |
265 | |
266 __ delayed()->mov_or_nop(_lock_reg->as_register(), G4); | |
267 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
268 __ delayed()->nop(); | |
269 } | |
270 | |
271 // Implementation of patching: | |
272 // - Copy the code at given offset to an inlined buffer (first the bytes, then the number of bytes) | |
273 // - Replace original code with a call to the stub | |
274 // At Runtime: | |
275 // - call to stub, jump to runtime | |
276 // - in runtime: preserve all registers (especially objects, i.e., source and destination object) | |
277 // - in runtime: after initializing class, restore original code, reexecute instruction | |
278 | |
279 int PatchingStub::_patch_info_offset = -NativeGeneralJump::instruction_size; | |
280 | |
281 void PatchingStub::align_patch_site(MacroAssembler* ) { | |
282 // patch sites on sparc are always properly aligned. | |
283 } | |
284 | |
285 void PatchingStub::emit_code(LIR_Assembler* ce) { | |
286 // copy original code here | |
287 assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF, | |
288 "not enough room for call"); | |
289 assert((_bytes_to_copy & 0x3) == 0, "must copy a multiple of four bytes"); | |
290 | |
291 Label call_patch; | |
292 | |
293 int being_initialized_entry = __ offset(); | |
294 | |
295 if (_id == load_klass_id) { | |
296 // produce a copy of the load klass instruction for use by the being initialized case | |
727 | 297 #ifdef ASSERT |
0 | 298 address start = __ pc(); |
727 | 299 #endif |
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300 AddressLiteral addrlit(NULL, metadata_Relocation::spec(_index)); |
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301 __ patchable_set(addrlit, _obj); |
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302 |
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303 #ifdef ASSERT |
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304 for (int i = 0; i < _bytes_to_copy; i++) { |
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305 address ptr = (address)(_pc_start + i); |
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306 int a_byte = (*ptr) & 0xFF; |
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307 assert(a_byte == *start++, "should be the same code"); |
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308 } |
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309 #endif |
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310 } else if (_id == load_mirror_id || _id == load_appendix_id) { |
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311 // produce a copy of the load mirror instruction for use by the being initialized case |
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312 #ifdef ASSERT |
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313 address start = __ pc(); |
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314 #endif |
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315 AddressLiteral addrlit(NULL, oop_Relocation::spec(_index)); |
727 | 316 __ patchable_set(addrlit, _obj); |
0 | 317 |
318 #ifdef ASSERT | |
319 for (int i = 0; i < _bytes_to_copy; i++) { | |
320 address ptr = (address)(_pc_start + i); | |
321 int a_byte = (*ptr) & 0xFF; | |
322 assert(a_byte == *start++, "should be the same code"); | |
323 } | |
324 #endif | |
325 } else { | |
326 // make a copy the code which is going to be patched. | |
327 for (int i = 0; i < _bytes_to_copy; i++) { | |
328 address ptr = (address)(_pc_start + i); | |
329 int a_byte = (*ptr) & 0xFF; | |
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330 __ emit_int8 (a_byte); |
0 | 331 } |
332 } | |
333 | |
334 address end_of_patch = __ pc(); | |
335 int bytes_to_skip = 0; | |
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336 if (_id == load_mirror_id) { |
0 | 337 int offset = __ offset(); |
338 if (CommentedAssembly) { | |
339 __ block_comment(" being_initialized check"); | |
340 } | |
341 | |
342 // static field accesses have special semantics while the class | |
343 // initializer is being run so we emit a test which can be used to | |
344 // check that this code is being executed by the initializing | |
345 // thread. | |
346 assert(_obj != noreg, "must be a valid register"); | |
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347 assert(_index >= 0, "must have oop index"); |
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348 __ ld_ptr(_obj, java_lang_Class::klass_offset_in_bytes(), G3); |
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349 __ ld_ptr(G3, in_bytes(InstanceKlass::init_thread_offset()), G3); |
3839 | 350 __ cmp_and_brx_short(G2_thread, G3, Assembler::notEqual, Assembler::pn, call_patch); |
0 | 351 |
352 // load_klass patches may execute the patched code before it's | |
353 // copied back into place so we need to jump back into the main | |
354 // code of the nmethod to continue execution. | |
355 __ br(Assembler::always, false, Assembler::pt, _patch_site_continuation); | |
356 __ delayed()->nop(); | |
357 | |
358 // make sure this extra code gets skipped | |
359 bytes_to_skip += __ offset() - offset; | |
360 } | |
361 | |
362 // Now emit the patch record telling the runtime how to find the | |
363 // pieces of the patch. We only need 3 bytes but it has to be | |
364 // aligned as an instruction so emit 4 bytes. | |
365 int sizeof_patch_record = 4; | |
366 bytes_to_skip += sizeof_patch_record; | |
367 | |
368 // emit the offsets needed to find the code to patch | |
369 int being_initialized_entry_offset = __ offset() - being_initialized_entry + sizeof_patch_record; | |
370 | |
371 // Emit the patch record. We need to emit a full word, so emit an extra empty byte | |
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372 __ emit_int8(0); |
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373 __ emit_int8(being_initialized_entry_offset); |
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374 __ emit_int8(bytes_to_skip); |
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375 __ emit_int8(_bytes_to_copy); |
0 | 376 address patch_info_pc = __ pc(); |
377 assert(patch_info_pc - end_of_patch == bytes_to_skip, "incorrect patch info"); | |
378 | |
379 address entry = __ pc(); | |
380 NativeGeneralJump::insert_unconditional((address)_pc_start, entry); | |
381 address target = NULL; | |
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382 relocInfo::relocType reloc_type = relocInfo::none; |
0 | 383 switch (_id) { |
384 case access_field_id: target = Runtime1::entry_for(Runtime1::access_field_patching_id); break; | |
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385 case load_klass_id: target = Runtime1::entry_for(Runtime1::load_klass_patching_id); reloc_type = relocInfo::metadata_type; break; |
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386 case load_mirror_id: target = Runtime1::entry_for(Runtime1::load_mirror_patching_id); reloc_type = relocInfo::oop_type; break; |
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387 case load_appendix_id: target = Runtime1::entry_for(Runtime1::load_appendix_patching_id); reloc_type = relocInfo::oop_type; break; |
0 | 388 default: ShouldNotReachHere(); |
389 } | |
390 __ bind(call_patch); | |
391 | |
392 if (CommentedAssembly) { | |
393 __ block_comment("patch entry point"); | |
394 } | |
395 __ call(target, relocInfo::runtime_call_type); | |
396 __ delayed()->nop(); | |
397 assert(_patch_info_offset == (patch_info_pc - __ pc()), "must not change"); | |
398 ce->add_call_info_here(_info); | |
399 __ br(Assembler::always, false, Assembler::pt, _patch_site_entry); | |
400 __ delayed()->nop(); | |
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401 if (_id == load_klass_id || _id == load_mirror_id || _id == load_appendix_id) { |
0 | 402 CodeSection* cs = __ code_section(); |
403 address pc = (address)_pc_start; | |
404 RelocIterator iter(cs, pc, pc + 1); | |
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405 relocInfo::change_reloc_info_for_address(&iter, (address) pc, reloc_type, relocInfo::none); |
0 | 406 |
407 pc = (address)(_pc_start + NativeMovConstReg::add_offset); | |
408 RelocIterator iter2(cs, pc, pc+1); | |
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409 relocInfo::change_reloc_info_for_address(&iter2, (address) pc, reloc_type, relocInfo::none); |
0 | 410 } |
411 | |
412 } | |
413 | |
1295 | 414 |
415 void DeoptimizeStub::emit_code(LIR_Assembler* ce) { | |
416 __ bind(_entry); | |
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417 __ call(Runtime1::entry_for(Runtime1::deoptimize_id), relocInfo::runtime_call_type); |
1295 | 418 __ delayed()->nop(); |
419 ce->add_call_info_here(_info); | |
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420 DEBUG_ONLY(__ should_not_reach_here()); |
1295 | 421 } |
422 | |
423 | |
0 | 424 void ArrayCopyStub::emit_code(LIR_Assembler* ce) { |
425 //---------------slow case: call to native----------------- | |
426 __ bind(_entry); | |
427 __ mov(src()->as_register(), O0); | |
428 __ mov(src_pos()->as_register(), O1); | |
429 __ mov(dst()->as_register(), O2); | |
430 __ mov(dst_pos()->as_register(), O3); | |
431 __ mov(length()->as_register(), O4); | |
432 | |
433 ce->emit_static_call_stub(); | |
434 | |
435 __ call(SharedRuntime::get_resolve_static_call_stub(), relocInfo::static_call_type); | |
436 __ delayed()->nop(); | |
437 ce->add_call_info_here(info()); | |
438 ce->verify_oop_map(info()); | |
439 | |
440 #ifndef PRODUCT | |
441 __ set((intptr_t)&Runtime1::_arraycopy_slowcase_cnt, O0); | |
442 __ ld(O0, 0, O1); | |
443 __ inc(O1); | |
444 __ st(O1, 0, O0); | |
445 #endif | |
446 | |
447 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
448 __ delayed()->nop(); | |
449 } | |
450 | |
451 | |
342 | 452 /////////////////////////////////////////////////////////////////////////////////// |
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453 #if INCLUDE_ALL_GCS |
342 | 454 |
455 void G1PreBarrierStub::emit_code(LIR_Assembler* ce) { | |
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456 // At this point we know that marking is in progress. |
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457 // If do_load() is true then we have to emit the |
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458 // load of the previous value; otherwise it has already |
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459 // been loaded into _pre_val. |
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460 |
342 | 461 __ bind(_entry); |
462 | |
463 assert(pre_val()->is_register(), "Precondition."); | |
464 Register pre_val_reg = pre_val()->as_register(); | |
465 | |
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466 if (do_load()) { |
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467 ce->mem2reg(addr(), pre_val(), T_OBJECT, patch_code(), info(), false /*wide*/, false /*unaligned*/); |
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468 } |
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469 |
1848 | 470 if (__ is_in_wdisp16_range(_continuation)) { |
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471 __ br_null(pre_val_reg, /*annul*/false, Assembler::pt, _continuation); |
1848 | 472 } else { |
473 __ cmp(pre_val_reg, G0); | |
474 __ brx(Assembler::equal, false, Assembler::pn, _continuation); | |
475 } | |
342 | 476 __ delayed()->nop(); |
477 | |
478 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_pre_barrier_slow_id)); | |
479 __ delayed()->mov(pre_val_reg, G4); | |
480 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
481 __ delayed()->nop(); | |
482 | |
483 } | |
484 | |
485 jbyte* G1PostBarrierStub::_byte_map_base = NULL; | |
486 | |
487 jbyte* G1PostBarrierStub::byte_map_base_slow() { | |
488 BarrierSet* bs = Universe::heap()->barrier_set(); | |
489 assert(bs->is_a(BarrierSet::G1SATBCTLogging), | |
490 "Must be if we're using this."); | |
491 return ((G1SATBCardTableModRefBS*)bs)->byte_map_base; | |
492 } | |
493 | |
494 void G1PostBarrierStub::emit_code(LIR_Assembler* ce) { | |
495 __ bind(_entry); | |
496 | |
497 assert(addr()->is_register(), "Precondition."); | |
498 assert(new_val()->is_register(), "Precondition."); | |
499 Register addr_reg = addr()->as_pointer_register(); | |
500 Register new_val_reg = new_val()->as_register(); | |
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501 |
1848 | 502 if (__ is_in_wdisp16_range(_continuation)) { |
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503 __ br_null(new_val_reg, /*annul*/false, Assembler::pt, _continuation); |
1848 | 504 } else { |
505 __ cmp(new_val_reg, G0); | |
506 __ brx(Assembler::equal, false, Assembler::pn, _continuation); | |
507 } | |
342 | 508 __ delayed()->nop(); |
509 | |
510 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_post_barrier_slow_id)); | |
511 __ delayed()->mov(addr_reg, G4); | |
512 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
513 __ delayed()->nop(); | |
514 } | |
515 | |
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516 #endif // INCLUDE_ALL_GCS |
342 | 517 /////////////////////////////////////////////////////////////////////////////////// |
518 | |
0 | 519 #undef __ |