Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp @ 2005:0cb042fd2d4b
6875026: CTW failure jdk6_18/hotspot/src/share/vm/c1/c1_LinearScan.cpp:5486
Reviewed-by: kvn, iveresov
author | never |
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date | Wed, 01 Dec 2010 15:47:52 -0800 |
parents | ac637b7220d1 |
children | e4fee0bdaa85 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2010, 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 |
c18cbe5936b8
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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" | |
33 #include "vmreg_sparc.inline.hpp" | |
34 #ifndef SERIALGC | |
35 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" | |
36 #endif | |
0 | 37 |
38 #define __ ce->masm()-> | |
39 | |
40 RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, | |
41 bool throw_index_out_of_bounds_exception) | |
42 : _throw_index_out_of_bounds_exception(throw_index_out_of_bounds_exception) | |
43 , _index(index) | |
44 { | |
1819 | 45 assert(info != NULL, "must have info"); |
0 | 46 _info = new CodeEmitInfo(info); |
47 } | |
48 | |
49 | |
50 void RangeCheckStub::emit_code(LIR_Assembler* ce) { | |
51 __ bind(_entry); | |
52 | |
53 if (_index->is_register()) { | |
54 __ mov(_index->as_register(), G4); | |
55 } else { | |
56 __ set(_index->as_jint(), G4); | |
57 } | |
58 if (_throw_index_out_of_bounds_exception) { | |
59 __ call(Runtime1::entry_for(Runtime1::throw_index_exception_id), relocInfo::runtime_call_type); | |
60 } else { | |
61 __ call(Runtime1::entry_for(Runtime1::throw_range_check_failed_id), relocInfo::runtime_call_type); | |
62 } | |
63 __ delayed()->nop(); | |
64 ce->add_call_info_here(_info); | |
65 ce->verify_oop_map(_info); | |
66 #ifdef ASSERT | |
67 __ should_not_reach_here(); | |
68 #endif | |
69 } | |
70 | |
71 | |
72 void CounterOverflowStub::emit_code(LIR_Assembler* ce) { | |
73 __ bind(_entry); | |
74 __ set(_bci, G4); | |
75 __ call(Runtime1::entry_for(Runtime1::counter_overflow_id), relocInfo::runtime_call_type); | |
1783 | 76 __ delayed()->mov_or_nop(_method->as_register(), G5); |
0 | 77 ce->add_call_info_here(_info); |
78 ce->verify_oop_map(_info); | |
79 | |
80 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
81 __ delayed()->nop(); | |
82 } | |
83 | |
84 | |
85 void DivByZeroStub::emit_code(LIR_Assembler* ce) { | |
86 if (_offset != -1) { | |
87 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); | |
88 } | |
89 __ bind(_entry); | |
90 __ call(Runtime1::entry_for(Runtime1::throw_div0_exception_id), relocInfo::runtime_call_type); | |
91 __ delayed()->nop(); | |
92 ce->add_call_info_here(_info); | |
93 ce->verify_oop_map(_info); | |
94 #ifdef ASSERT | |
95 __ should_not_reach_here(); | |
96 #endif | |
97 } | |
98 | |
99 | |
100 void ImplicitNullCheckStub::emit_code(LIR_Assembler* ce) { | |
101 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); | |
102 __ bind(_entry); | |
103 __ call(Runtime1::entry_for(Runtime1::throw_null_pointer_exception_id), | |
104 relocInfo::runtime_call_type); | |
105 __ delayed()->nop(); | |
106 ce->add_call_info_here(_info); | |
107 ce->verify_oop_map(_info); | |
108 #ifdef ASSERT | |
109 __ should_not_reach_here(); | |
110 #endif | |
111 } | |
112 | |
113 | |
114 // Implementation of SimpleExceptionStub | |
115 // Note: %g1 and %g3 are already in use | |
116 void SimpleExceptionStub::emit_code(LIR_Assembler* ce) { | |
117 __ bind(_entry); | |
118 __ call(Runtime1::entry_for(_stub), relocInfo::runtime_call_type); | |
119 | |
120 if (_obj->is_valid()) { | |
121 __ delayed()->mov(_obj->as_register(), G4); // _obj contains the optional argument to the stub | |
122 } else { | |
123 __ delayed()->mov(G0, G4); | |
124 } | |
125 ce->add_call_info_here(_info); | |
126 #ifdef ASSERT | |
127 __ should_not_reach_here(); | |
128 #endif | |
129 } | |
130 | |
131 | |
132 // Implementation of ArrayStoreExceptionStub | |
133 | |
134 ArrayStoreExceptionStub::ArrayStoreExceptionStub(CodeEmitInfo* info): | |
135 _info(info) { | |
136 } | |
137 | |
138 | |
139 void ArrayStoreExceptionStub::emit_code(LIR_Assembler* ce) { | |
140 __ bind(_entry); | |
141 __ call(Runtime1::entry_for(Runtime1::throw_array_store_exception_id), relocInfo::runtime_call_type); | |
142 __ delayed()->nop(); | |
143 ce->add_call_info_here(_info); | |
144 ce->verify_oop_map(_info); | |
145 #ifdef ASSERT | |
146 __ should_not_reach_here(); | |
147 #endif | |
148 } | |
149 | |
150 | |
151 | |
152 | |
153 // Implementation of NewInstanceStub | |
154 | |
155 NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, Runtime1::StubID stub_id) { | |
156 _result = result; | |
157 _klass = klass; | |
158 _klass_reg = klass_reg; | |
159 _info = new CodeEmitInfo(info); | |
160 assert(stub_id == Runtime1::new_instance_id || | |
161 stub_id == Runtime1::fast_new_instance_id || | |
162 stub_id == Runtime1::fast_new_instance_init_check_id, | |
163 "need new_instance id"); | |
164 _stub_id = stub_id; | |
165 } | |
166 | |
167 | |
168 void NewInstanceStub::emit_code(LIR_Assembler* ce) { | |
169 __ bind(_entry); | |
170 __ call(Runtime1::entry_for(_stub_id), relocInfo::runtime_call_type); | |
171 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
172 ce->add_call_info_here(_info); | |
173 ce->verify_oop_map(_info); | |
174 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
175 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
176 } | |
177 | |
178 | |
179 // Implementation of NewTypeArrayStub | |
180 NewTypeArrayStub::NewTypeArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
181 _klass_reg = klass_reg; | |
182 _length = length; | |
183 _result = result; | |
184 _info = new CodeEmitInfo(info); | |
185 } | |
186 | |
187 | |
188 void NewTypeArrayStub::emit_code(LIR_Assembler* ce) { | |
189 __ bind(_entry); | |
190 | |
191 __ mov(_length->as_register(), G4); | |
192 __ call(Runtime1::entry_for(Runtime1::new_type_array_id), relocInfo::runtime_call_type); | |
193 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
194 ce->add_call_info_here(_info); | |
195 ce->verify_oop_map(_info); | |
196 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
197 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
198 } | |
199 | |
200 | |
201 // Implementation of NewObjectArrayStub | |
202 | |
203 NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
204 _klass_reg = klass_reg; | |
205 _length = length; | |
206 _result = result; | |
207 _info = new CodeEmitInfo(info); | |
208 } | |
209 | |
210 | |
211 void NewObjectArrayStub::emit_code(LIR_Assembler* ce) { | |
212 __ bind(_entry); | |
213 | |
214 __ mov(_length->as_register(), G4); | |
215 __ call(Runtime1::entry_for(Runtime1::new_object_array_id), relocInfo::runtime_call_type); | |
216 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
217 ce->add_call_info_here(_info); | |
218 ce->verify_oop_map(_info); | |
219 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
220 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
221 } | |
222 | |
223 | |
224 // Implementation of MonitorAccessStubs | |
225 MonitorEnterStub::MonitorEnterStub(LIR_Opr obj_reg, LIR_Opr lock_reg, CodeEmitInfo* info) | |
226 : MonitorAccessStub(obj_reg, lock_reg) { | |
227 _info = new CodeEmitInfo(info); | |
228 } | |
229 | |
230 | |
231 void MonitorEnterStub::emit_code(LIR_Assembler* ce) { | |
232 __ bind(_entry); | |
233 __ mov(_obj_reg->as_register(), G4); | |
234 if (ce->compilation()->has_fpu_code()) { | |
235 __ call(Runtime1::entry_for(Runtime1::monitorenter_id), relocInfo::runtime_call_type); | |
236 } else { | |
237 __ call(Runtime1::entry_for(Runtime1::monitorenter_nofpu_id), relocInfo::runtime_call_type); | |
238 } | |
239 __ delayed()->mov_or_nop(_lock_reg->as_register(), G5); | |
240 ce->add_call_info_here(_info); | |
241 ce->verify_oop_map(_info); | |
242 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
243 __ delayed()->nop(); | |
244 } | |
245 | |
246 | |
247 void MonitorExitStub::emit_code(LIR_Assembler* ce) { | |
248 __ bind(_entry); | |
249 if (_compute_lock) { | |
250 ce->monitor_address(_monitor_ix, _lock_reg); | |
251 } | |
252 if (ce->compilation()->has_fpu_code()) { | |
253 __ call(Runtime1::entry_for(Runtime1::monitorexit_id), relocInfo::runtime_call_type); | |
254 } else { | |
255 __ call(Runtime1::entry_for(Runtime1::monitorexit_nofpu_id), relocInfo::runtime_call_type); | |
256 } | |
257 | |
258 __ delayed()->mov_or_nop(_lock_reg->as_register(), G4); | |
259 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
260 __ delayed()->nop(); | |
261 } | |
262 | |
263 // Implementation of patching: | |
264 // - Copy the code at given offset to an inlined buffer (first the bytes, then the number of bytes) | |
265 // - Replace original code with a call to the stub | |
266 // At Runtime: | |
267 // - call to stub, jump to runtime | |
268 // - in runtime: preserve all registers (especially objects, i.e., source and destination object) | |
269 // - in runtime: after initializing class, restore original code, reexecute instruction | |
270 | |
271 int PatchingStub::_patch_info_offset = -NativeGeneralJump::instruction_size; | |
272 | |
273 void PatchingStub::align_patch_site(MacroAssembler* ) { | |
274 // patch sites on sparc are always properly aligned. | |
275 } | |
276 | |
277 void PatchingStub::emit_code(LIR_Assembler* ce) { | |
278 // copy original code here | |
279 assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF, | |
280 "not enough room for call"); | |
281 assert((_bytes_to_copy & 0x3) == 0, "must copy a multiple of four bytes"); | |
282 | |
283 Label call_patch; | |
284 | |
285 int being_initialized_entry = __ offset(); | |
286 | |
287 if (_id == load_klass_id) { | |
288 // produce a copy of the load klass instruction for use by the being initialized case | |
727 | 289 #ifdef ASSERT |
0 | 290 address start = __ pc(); |
727 | 291 #endif |
292 AddressLiteral addrlit(NULL, oop_Relocation::spec(_oop_index)); | |
293 __ patchable_set(addrlit, _obj); | |
0 | 294 |
295 #ifdef ASSERT | |
296 for (int i = 0; i < _bytes_to_copy; i++) { | |
297 address ptr = (address)(_pc_start + i); | |
298 int a_byte = (*ptr) & 0xFF; | |
299 assert(a_byte == *start++, "should be the same code"); | |
300 } | |
301 #endif | |
302 } else { | |
303 // make a copy the code which is going to be patched. | |
304 for (int i = 0; i < _bytes_to_copy; i++) { | |
305 address ptr = (address)(_pc_start + i); | |
306 int a_byte = (*ptr) & 0xFF; | |
307 __ a_byte (a_byte); | |
308 } | |
309 } | |
310 | |
311 address end_of_patch = __ pc(); | |
312 int bytes_to_skip = 0; | |
313 if (_id == load_klass_id) { | |
314 int offset = __ offset(); | |
315 if (CommentedAssembly) { | |
316 __ block_comment(" being_initialized check"); | |
317 } | |
318 | |
319 // static field accesses have special semantics while the class | |
320 // initializer is being run so we emit a test which can be used to | |
321 // check that this code is being executed by the initializing | |
322 // thread. | |
323 assert(_obj != noreg, "must be a valid register"); | |
324 assert(_oop_index >= 0, "must have oop index"); | |
325 __ ld_ptr(_obj, instanceKlass::init_thread_offset_in_bytes() + sizeof(klassOopDesc), G3); | |
326 __ cmp(G2_thread, G3); | |
327 __ br(Assembler::notEqual, false, Assembler::pn, call_patch); | |
328 __ delayed()->nop(); | |
329 | |
330 // load_klass patches may execute the patched code before it's | |
331 // copied back into place so we need to jump back into the main | |
332 // code of the nmethod to continue execution. | |
333 __ br(Assembler::always, false, Assembler::pt, _patch_site_continuation); | |
334 __ delayed()->nop(); | |
335 | |
336 // make sure this extra code gets skipped | |
337 bytes_to_skip += __ offset() - offset; | |
338 } | |
339 | |
340 // Now emit the patch record telling the runtime how to find the | |
341 // pieces of the patch. We only need 3 bytes but it has to be | |
342 // aligned as an instruction so emit 4 bytes. | |
343 int sizeof_patch_record = 4; | |
344 bytes_to_skip += sizeof_patch_record; | |
345 | |
346 // emit the offsets needed to find the code to patch | |
347 int being_initialized_entry_offset = __ offset() - being_initialized_entry + sizeof_patch_record; | |
348 | |
349 // Emit the patch record. We need to emit a full word, so emit an extra empty byte | |
350 __ a_byte(0); | |
351 __ a_byte(being_initialized_entry_offset); | |
352 __ a_byte(bytes_to_skip); | |
353 __ a_byte(_bytes_to_copy); | |
354 address patch_info_pc = __ pc(); | |
355 assert(patch_info_pc - end_of_patch == bytes_to_skip, "incorrect patch info"); | |
356 | |
357 address entry = __ pc(); | |
358 NativeGeneralJump::insert_unconditional((address)_pc_start, entry); | |
359 address target = NULL; | |
360 switch (_id) { | |
361 case access_field_id: target = Runtime1::entry_for(Runtime1::access_field_patching_id); break; | |
362 case load_klass_id: target = Runtime1::entry_for(Runtime1::load_klass_patching_id); break; | |
363 default: ShouldNotReachHere(); | |
364 } | |
365 __ bind(call_patch); | |
366 | |
367 if (CommentedAssembly) { | |
368 __ block_comment("patch entry point"); | |
369 } | |
370 __ call(target, relocInfo::runtime_call_type); | |
371 __ delayed()->nop(); | |
372 assert(_patch_info_offset == (patch_info_pc - __ pc()), "must not change"); | |
373 ce->add_call_info_here(_info); | |
374 __ br(Assembler::always, false, Assembler::pt, _patch_site_entry); | |
375 __ delayed()->nop(); | |
376 if (_id == load_klass_id) { | |
377 CodeSection* cs = __ code_section(); | |
378 address pc = (address)_pc_start; | |
379 RelocIterator iter(cs, pc, pc + 1); | |
380 relocInfo::change_reloc_info_for_address(&iter, (address) pc, relocInfo::oop_type, relocInfo::none); | |
381 | |
382 pc = (address)(_pc_start + NativeMovConstReg::add_offset); | |
383 RelocIterator iter2(cs, pc, pc+1); | |
384 relocInfo::change_reloc_info_for_address(&iter2, (address) pc, relocInfo::oop_type, relocInfo::none); | |
385 } | |
386 | |
387 } | |
388 | |
1295 | 389 |
390 void DeoptimizeStub::emit_code(LIR_Assembler* ce) { | |
391 __ bind(_entry); | |
392 __ call(SharedRuntime::deopt_blob()->unpack_with_reexecution()); | |
393 __ delayed()->nop(); | |
394 ce->add_call_info_here(_info); | |
395 debug_only(__ should_not_reach_here()); | |
396 } | |
397 | |
398 | |
0 | 399 void ArrayCopyStub::emit_code(LIR_Assembler* ce) { |
400 //---------------slow case: call to native----------------- | |
401 __ bind(_entry); | |
402 __ mov(src()->as_register(), O0); | |
403 __ mov(src_pos()->as_register(), O1); | |
404 __ mov(dst()->as_register(), O2); | |
405 __ mov(dst_pos()->as_register(), O3); | |
406 __ mov(length()->as_register(), O4); | |
407 | |
408 ce->emit_static_call_stub(); | |
409 | |
410 __ call(SharedRuntime::get_resolve_static_call_stub(), relocInfo::static_call_type); | |
411 __ delayed()->nop(); | |
412 ce->add_call_info_here(info()); | |
413 ce->verify_oop_map(info()); | |
414 | |
415 #ifndef PRODUCT | |
416 __ set((intptr_t)&Runtime1::_arraycopy_slowcase_cnt, O0); | |
417 __ ld(O0, 0, O1); | |
418 __ inc(O1); | |
419 __ st(O1, 0, O0); | |
420 #endif | |
421 | |
422 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
423 __ delayed()->nop(); | |
424 } | |
425 | |
426 | |
342 | 427 /////////////////////////////////////////////////////////////////////////////////// |
428 #ifndef SERIALGC | |
429 | |
430 void G1PreBarrierStub::emit_code(LIR_Assembler* ce) { | |
431 __ bind(_entry); | |
432 | |
433 assert(pre_val()->is_register(), "Precondition."); | |
434 | |
435 Register pre_val_reg = pre_val()->as_register(); | |
436 | |
2002 | 437 ce->mem2reg(addr(), pre_val(), T_OBJECT, patch_code(), info(), false /*wide*/, false /*unaligned*/); |
1848 | 438 if (__ is_in_wdisp16_range(_continuation)) { |
439 __ br_on_reg_cond(Assembler::rc_z, /*annul*/false, Assembler::pt, | |
440 pre_val_reg, _continuation); | |
441 } else { | |
442 __ cmp(pre_val_reg, G0); | |
443 __ brx(Assembler::equal, false, Assembler::pn, _continuation); | |
444 } | |
342 | 445 __ delayed()->nop(); |
446 | |
447 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_pre_barrier_slow_id)); | |
448 __ delayed()->mov(pre_val_reg, G4); | |
449 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
450 __ delayed()->nop(); | |
451 | |
452 } | |
453 | |
454 jbyte* G1PostBarrierStub::_byte_map_base = NULL; | |
455 | |
456 jbyte* G1PostBarrierStub::byte_map_base_slow() { | |
457 BarrierSet* bs = Universe::heap()->barrier_set(); | |
458 assert(bs->is_a(BarrierSet::G1SATBCTLogging), | |
459 "Must be if we're using this."); | |
460 return ((G1SATBCardTableModRefBS*)bs)->byte_map_base; | |
461 } | |
462 | |
463 void G1PostBarrierStub::emit_code(LIR_Assembler* ce) { | |
464 __ bind(_entry); | |
465 | |
466 assert(addr()->is_register(), "Precondition."); | |
467 assert(new_val()->is_register(), "Precondition."); | |
468 Register addr_reg = addr()->as_pointer_register(); | |
469 Register new_val_reg = new_val()->as_register(); | |
1848 | 470 if (__ is_in_wdisp16_range(_continuation)) { |
471 __ br_on_reg_cond(Assembler::rc_z, /*annul*/false, Assembler::pt, | |
472 new_val_reg, _continuation); | |
473 } else { | |
474 __ cmp(new_val_reg, G0); | |
475 __ brx(Assembler::equal, false, Assembler::pn, _continuation); | |
476 } | |
342 | 477 __ delayed()->nop(); |
478 | |
479 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_post_barrier_slow_id)); | |
480 __ delayed()->mov(addr_reg, G4); | |
481 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
482 __ delayed()->nop(); | |
483 } | |
484 | |
485 #endif // SERIALGC | |
486 /////////////////////////////////////////////////////////////////////////////////// | |
487 | |
0 | 488 #undef __ |