Mercurial > hg > graal-jvmci-8
annotate src/share/vm/c1/c1_LIRGenerator.cpp @ 23050:e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
Summary: Introduce the PreserveFramePointer flag to control if RBP is used as the frame pointer or as a general purpose register.
Reviewed-by: kvn, roland, dlong, enevill, shade
author | zmajo |
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date | Fri, 29 May 2015 10:58:45 +0200 |
parents | ddce0b7cee93 |
children | 8fd636dd1c91 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "c1/c1_Defs.hpp" |
1972 | 27 #include "c1/c1_Compilation.hpp" |
28 #include "c1/c1_FrameMap.hpp" | |
29 #include "c1/c1_Instruction.hpp" | |
30 #include "c1/c1_LIRAssembler.hpp" | |
31 #include "c1/c1_LIRGenerator.hpp" | |
32 #include "c1/c1_ValueStack.hpp" | |
33 #include "ci/ciArrayKlass.hpp" | |
34 #include "ci/ciInstance.hpp" | |
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35 #include "ci/ciObjArray.hpp" |
1972 | 36 #include "runtime/sharedRuntime.hpp" |
37 #include "runtime/stubRoutines.hpp" | |
38 #include "utilities/bitMap.inline.hpp" | |
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39 #include "utilities/macros.hpp" |
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40 #if INCLUDE_ALL_GCS |
1972 | 41 #include "gc_implementation/g1/heapRegion.hpp" |
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42 #endif // INCLUDE_ALL_GCS |
0 | 43 |
44 #ifdef ASSERT | |
45 #define __ gen()->lir(__FILE__, __LINE__)-> | |
46 #else | |
47 #define __ gen()->lir()-> | |
48 #endif | |
49 | |
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50 #ifndef PATCHED_ADDR |
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51 #define PATCHED_ADDR (max_jint) |
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52 #endif |
0 | 53 |
54 void PhiResolverState::reset(int max_vregs) { | |
55 // Initialize array sizes | |
56 _virtual_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
57 _virtual_operands.trunc_to(0); | |
58 _other_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
59 _other_operands.trunc_to(0); | |
60 _vreg_table.at_put_grow(max_vregs - 1, NULL, NULL); | |
61 _vreg_table.trunc_to(0); | |
62 } | |
63 | |
64 | |
65 | |
66 //-------------------------------------------------------------- | |
67 // PhiResolver | |
68 | |
69 // Resolves cycles: | |
70 // | |
71 // r1 := r2 becomes temp := r1 | |
72 // r2 := r1 r1 := r2 | |
73 // r2 := temp | |
74 // and orders moves: | |
75 // | |
76 // r2 := r3 becomes r1 := r2 | |
77 // r1 := r2 r2 := r3 | |
78 | |
79 PhiResolver::PhiResolver(LIRGenerator* gen, int max_vregs) | |
80 : _gen(gen) | |
81 , _state(gen->resolver_state()) | |
82 , _temp(LIR_OprFact::illegalOpr) | |
83 { | |
84 // reinitialize the shared state arrays | |
85 _state.reset(max_vregs); | |
86 } | |
87 | |
88 | |
89 void PhiResolver::emit_move(LIR_Opr src, LIR_Opr dest) { | |
90 assert(src->is_valid(), ""); | |
91 assert(dest->is_valid(), ""); | |
92 __ move(src, dest); | |
93 } | |
94 | |
95 | |
96 void PhiResolver::move_temp_to(LIR_Opr dest) { | |
97 assert(_temp->is_valid(), ""); | |
98 emit_move(_temp, dest); | |
99 NOT_PRODUCT(_temp = LIR_OprFact::illegalOpr); | |
100 } | |
101 | |
102 | |
103 void PhiResolver::move_to_temp(LIR_Opr src) { | |
104 assert(_temp->is_illegal(), ""); | |
105 _temp = _gen->new_register(src->type()); | |
106 emit_move(src, _temp); | |
107 } | |
108 | |
109 | |
110 // Traverse assignment graph in depth first order and generate moves in post order | |
111 // ie. two assignments: b := c, a := b start with node c: | |
112 // Call graph: move(NULL, c) -> move(c, b) -> move(b, a) | |
113 // Generates moves in this order: move b to a and move c to b | |
114 // ie. cycle a := b, b := a start with node a | |
115 // Call graph: move(NULL, a) -> move(a, b) -> move(b, a) | |
116 // Generates moves in this order: move b to temp, move a to b, move temp to a | |
117 void PhiResolver::move(ResolveNode* src, ResolveNode* dest) { | |
118 if (!dest->visited()) { | |
119 dest->set_visited(); | |
120 for (int i = dest->no_of_destinations()-1; i >= 0; i --) { | |
121 move(dest, dest->destination_at(i)); | |
122 } | |
123 } else if (!dest->start_node()) { | |
124 // cylce in graph detected | |
125 assert(_loop == NULL, "only one loop valid!"); | |
126 _loop = dest; | |
127 move_to_temp(src->operand()); | |
128 return; | |
129 } // else dest is a start node | |
130 | |
131 if (!dest->assigned()) { | |
132 if (_loop == dest) { | |
133 move_temp_to(dest->operand()); | |
134 dest->set_assigned(); | |
135 } else if (src != NULL) { | |
136 emit_move(src->operand(), dest->operand()); | |
137 dest->set_assigned(); | |
138 } | |
139 } | |
140 } | |
141 | |
142 | |
143 PhiResolver::~PhiResolver() { | |
144 int i; | |
145 // resolve any cycles in moves from and to virtual registers | |
146 for (i = virtual_operands().length() - 1; i >= 0; i --) { | |
147 ResolveNode* node = virtual_operands()[i]; | |
148 if (!node->visited()) { | |
149 _loop = NULL; | |
150 move(NULL, node); | |
151 node->set_start_node(); | |
152 assert(_temp->is_illegal(), "move_temp_to() call missing"); | |
153 } | |
154 } | |
155 | |
156 // generate move for move from non virtual register to abitrary destination | |
157 for (i = other_operands().length() - 1; i >= 0; i --) { | |
158 ResolveNode* node = other_operands()[i]; | |
159 for (int j = node->no_of_destinations() - 1; j >= 0; j --) { | |
160 emit_move(node->operand(), node->destination_at(j)->operand()); | |
161 } | |
162 } | |
163 } | |
164 | |
165 | |
166 ResolveNode* PhiResolver::create_node(LIR_Opr opr, bool source) { | |
167 ResolveNode* node; | |
168 if (opr->is_virtual()) { | |
169 int vreg_num = opr->vreg_number(); | |
170 node = vreg_table().at_grow(vreg_num, NULL); | |
171 assert(node == NULL || node->operand() == opr, ""); | |
172 if (node == NULL) { | |
173 node = new ResolveNode(opr); | |
174 vreg_table()[vreg_num] = node; | |
175 } | |
176 // Make sure that all virtual operands show up in the list when | |
177 // they are used as the source of a move. | |
178 if (source && !virtual_operands().contains(node)) { | |
179 virtual_operands().append(node); | |
180 } | |
181 } else { | |
182 assert(source, ""); | |
183 node = new ResolveNode(opr); | |
184 other_operands().append(node); | |
185 } | |
186 return node; | |
187 } | |
188 | |
189 | |
190 void PhiResolver::move(LIR_Opr src, LIR_Opr dest) { | |
191 assert(dest->is_virtual(), ""); | |
192 // tty->print("move "); src->print(); tty->print(" to "); dest->print(); tty->cr(); | |
193 assert(src->is_valid(), ""); | |
194 assert(dest->is_valid(), ""); | |
195 ResolveNode* source = source_node(src); | |
196 source->append(destination_node(dest)); | |
197 } | |
198 | |
199 | |
200 //-------------------------------------------------------------- | |
201 // LIRItem | |
202 | |
203 void LIRItem::set_result(LIR_Opr opr) { | |
204 assert(value()->operand()->is_illegal() || value()->operand()->is_constant(), "operand should never change"); | |
205 value()->set_operand(opr); | |
206 | |
207 if (opr->is_virtual()) { | |
208 _gen->_instruction_for_operand.at_put_grow(opr->vreg_number(), value(), NULL); | |
209 } | |
210 | |
211 _result = opr; | |
212 } | |
213 | |
214 void LIRItem::load_item() { | |
215 if (result()->is_illegal()) { | |
216 // update the items result | |
217 _result = value()->operand(); | |
218 } | |
219 if (!result()->is_register()) { | |
220 LIR_Opr reg = _gen->new_register(value()->type()); | |
221 __ move(result(), reg); | |
222 if (result()->is_constant()) { | |
223 _result = reg; | |
224 } else { | |
225 set_result(reg); | |
226 } | |
227 } | |
228 } | |
229 | |
230 | |
231 void LIRItem::load_for_store(BasicType type) { | |
232 if (_gen->can_store_as_constant(value(), type)) { | |
233 _result = value()->operand(); | |
234 if (!_result->is_constant()) { | |
235 _result = LIR_OprFact::value_type(value()->type()); | |
236 } | |
237 } else if (type == T_BYTE || type == T_BOOLEAN) { | |
238 load_byte_item(); | |
239 } else { | |
240 load_item(); | |
241 } | |
242 } | |
243 | |
244 void LIRItem::load_item_force(LIR_Opr reg) { | |
245 LIR_Opr r = result(); | |
246 if (r != reg) { | |
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247 #if !defined(ARM) && !defined(E500V2) |
0 | 248 if (r->type() != reg->type()) { |
249 // moves between different types need an intervening spill slot | |
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250 r = _gen->force_to_spill(r, reg->type()); |
0 | 251 } |
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252 #endif |
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253 __ move(r, reg); |
0 | 254 _result = reg; |
255 } | |
256 } | |
257 | |
258 ciObject* LIRItem::get_jobject_constant() const { | |
259 ObjectType* oc = type()->as_ObjectType(); | |
260 if (oc) { | |
261 return oc->constant_value(); | |
262 } | |
263 return NULL; | |
264 } | |
265 | |
266 | |
267 jint LIRItem::get_jint_constant() const { | |
268 assert(is_constant() && value() != NULL, ""); | |
269 assert(type()->as_IntConstant() != NULL, "type check"); | |
270 return type()->as_IntConstant()->value(); | |
271 } | |
272 | |
273 | |
274 jint LIRItem::get_address_constant() const { | |
275 assert(is_constant() && value() != NULL, ""); | |
276 assert(type()->as_AddressConstant() != NULL, "type check"); | |
277 return type()->as_AddressConstant()->value(); | |
278 } | |
279 | |
280 | |
281 jfloat LIRItem::get_jfloat_constant() const { | |
282 assert(is_constant() && value() != NULL, ""); | |
283 assert(type()->as_FloatConstant() != NULL, "type check"); | |
284 return type()->as_FloatConstant()->value(); | |
285 } | |
286 | |
287 | |
288 jdouble LIRItem::get_jdouble_constant() const { | |
289 assert(is_constant() && value() != NULL, ""); | |
290 assert(type()->as_DoubleConstant() != NULL, "type check"); | |
291 return type()->as_DoubleConstant()->value(); | |
292 } | |
293 | |
294 | |
295 jlong LIRItem::get_jlong_constant() const { | |
296 assert(is_constant() && value() != NULL, ""); | |
297 assert(type()->as_LongConstant() != NULL, "type check"); | |
298 return type()->as_LongConstant()->value(); | |
299 } | |
300 | |
301 | |
302 | |
303 //-------------------------------------------------------------- | |
304 | |
305 | |
306 void LIRGenerator::init() { | |
342 | 307 _bs = Universe::heap()->barrier_set(); |
0 | 308 } |
309 | |
310 | |
311 void LIRGenerator::block_do_prolog(BlockBegin* block) { | |
312 #ifndef PRODUCT | |
313 if (PrintIRWithLIR) { | |
314 block->print(); | |
315 } | |
316 #endif | |
317 | |
318 // set up the list of LIR instructions | |
319 assert(block->lir() == NULL, "LIR list already computed for this block"); | |
320 _lir = new LIR_List(compilation(), block); | |
321 block->set_lir(_lir); | |
322 | |
323 __ branch_destination(block->label()); | |
324 | |
325 if (LIRTraceExecution && | |
1584 | 326 Compilation::current()->hir()->start()->block_id() != block->block_id() && |
0 | 327 !block->is_set(BlockBegin::exception_entry_flag)) { |
328 assert(block->lir()->instructions_list()->length() == 1, "should come right after br_dst"); | |
329 trace_block_entry(block); | |
330 } | |
331 } | |
332 | |
333 | |
334 void LIRGenerator::block_do_epilog(BlockBegin* block) { | |
335 #ifndef PRODUCT | |
336 if (PrintIRWithLIR) { | |
337 tty->cr(); | |
338 } | |
339 #endif | |
340 | |
341 // LIR_Opr for unpinned constants shouldn't be referenced by other | |
342 // blocks so clear them out after processing the block. | |
343 for (int i = 0; i < _unpinned_constants.length(); i++) { | |
344 _unpinned_constants.at(i)->clear_operand(); | |
345 } | |
346 _unpinned_constants.trunc_to(0); | |
347 | |
348 // clear our any registers for other local constants | |
349 _constants.trunc_to(0); | |
350 _reg_for_constants.trunc_to(0); | |
351 } | |
352 | |
353 | |
354 void LIRGenerator::block_do(BlockBegin* block) { | |
355 CHECK_BAILOUT(); | |
356 | |
357 block_do_prolog(block); | |
358 set_block(block); | |
359 | |
360 for (Instruction* instr = block; instr != NULL; instr = instr->next()) { | |
361 if (instr->is_pinned()) do_root(instr); | |
362 } | |
363 | |
364 set_block(NULL); | |
365 block_do_epilog(block); | |
366 } | |
367 | |
368 | |
369 //-------------------------LIRGenerator----------------------------- | |
370 | |
371 // This is where the tree-walk starts; instr must be root; | |
372 void LIRGenerator::do_root(Value instr) { | |
373 CHECK_BAILOUT(); | |
374 | |
375 InstructionMark im(compilation(), instr); | |
376 | |
377 assert(instr->is_pinned(), "use only with roots"); | |
378 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
379 | |
380 instr->visit(this); | |
381 | |
382 assert(!instr->has_uses() || instr->operand()->is_valid() || | |
383 instr->as_Constant() != NULL || bailed_out(), "invalid item set"); | |
384 } | |
385 | |
386 | |
387 // This is called for each node in tree; the walk stops if a root is reached | |
388 void LIRGenerator::walk(Value instr) { | |
389 InstructionMark im(compilation(), instr); | |
390 //stop walk when encounter a root | |
391 if (instr->is_pinned() && instr->as_Phi() == NULL || instr->operand()->is_valid()) { | |
392 assert(instr->operand() != LIR_OprFact::illegalOpr || instr->as_Constant() != NULL, "this root has not yet been visited"); | |
393 } else { | |
394 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
395 instr->visit(this); | |
396 // assert(instr->use_count() > 0 || instr->as_Phi() != NULL, "leaf instruction must have a use"); | |
397 } | |
398 } | |
399 | |
400 | |
401 CodeEmitInfo* LIRGenerator::state_for(Instruction* x, ValueStack* state, bool ignore_xhandler) { | |
1819 | 402 assert(state != NULL, "state must be defined"); |
403 | |
8860 | 404 #ifndef PRODUCT |
405 state->verify(); | |
406 #endif | |
407 | |
1819 | 408 ValueStack* s = state; |
409 for_each_state(s) { | |
410 if (s->kind() == ValueStack::EmptyExceptionState) { | |
411 assert(s->stack_size() == 0 && s->locals_size() == 0 && (s->locks_size() == 0 || s->locks_size() == 1), "state must be empty"); | |
412 continue; | |
0 | 413 } |
1819 | 414 |
415 int index; | |
416 Value value; | |
417 for_each_stack_value(s, index, value) { | |
418 assert(value->subst() == value, "missed substitution"); | |
419 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
420 walk(value); | |
421 assert(value->operand()->is_valid(), "must be evaluated now"); | |
422 } | |
423 } | |
424 | |
425 int bci = s->bci(); | |
0 | 426 IRScope* scope = s->scope(); |
427 ciMethod* method = scope->method(); | |
428 | |
429 MethodLivenessResult liveness = method->liveness_at_bci(bci); | |
430 if (bci == SynchronizationEntryBCI) { | |
431 if (x->as_ExceptionObject() || x->as_Throw()) { | |
432 // all locals are dead on exit from the synthetic unlocker | |
433 liveness.clear(); | |
434 } else { | |
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435 assert(x->as_MonitorEnter() || x->as_ProfileInvoke(), "only other cases are MonitorEnter and ProfileInvoke"); |
0 | 436 } |
437 } | |
438 if (!liveness.is_valid()) { | |
439 // Degenerate or breakpointed method. | |
440 bailout("Degenerate or breakpointed method"); | |
441 } else { | |
442 assert((int)liveness.size() == s->locals_size(), "error in use of liveness"); | |
443 for_each_local_value(s, index, value) { | |
444 assert(value->subst() == value, "missed substition"); | |
445 if (liveness.at(index) && !value->type()->is_illegal()) { | |
446 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
447 walk(value); | |
448 assert(value->operand()->is_valid(), "must be evaluated now"); | |
449 } | |
450 } else { | |
451 // NULL out this local so that linear scan can assume that all non-NULL values are live. | |
452 s->invalidate_local(index); | |
453 } | |
454 } | |
455 } | |
456 } | |
457 | |
8860 | 458 return new CodeEmitInfo(state, ignore_xhandler ? NULL : x->exception_handlers(), x->check_flag(Instruction::DeoptimizeOnException)); |
0 | 459 } |
460 | |
461 | |
462 CodeEmitInfo* LIRGenerator::state_for(Instruction* x) { | |
1819 | 463 return state_for(x, x->exception_state()); |
0 | 464 } |
465 | |
466 | |
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467 void LIRGenerator::klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve) { |
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468 /* C2 relies on constant pool entries being resolved (ciTypeFlow), so if TieredCompilation |
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469 * is active and the class hasn't yet been resolved we need to emit a patch that resolves |
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470 * the class. */ |
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471 if ((TieredCompilation && need_resolve) || !obj->is_loaded() || PatchALot) { |
0 | 472 assert(info != NULL, "info must be set if class is not loaded"); |
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473 __ klass2reg_patch(NULL, r, info); |
0 | 474 } else { |
475 // no patching needed | |
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476 __ metadata2reg(obj->constant_encoding(), r); |
0 | 477 } |
478 } | |
479 | |
480 | |
481 void LIRGenerator::array_range_check(LIR_Opr array, LIR_Opr index, | |
482 CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info) { | |
483 CodeStub* stub = new RangeCheckStub(range_check_info, index); | |
484 if (index->is_constant()) { | |
485 cmp_mem_int(lir_cond_belowEqual, array, arrayOopDesc::length_offset_in_bytes(), | |
486 index->as_jint(), null_check_info); | |
487 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
488 } else { | |
489 cmp_reg_mem(lir_cond_aboveEqual, index, array, | |
490 arrayOopDesc::length_offset_in_bytes(), T_INT, null_check_info); | |
491 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
492 } | |
493 } | |
494 | |
495 | |
496 void LIRGenerator::nio_range_check(LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) { | |
497 CodeStub* stub = new RangeCheckStub(info, index, true); | |
498 if (index->is_constant()) { | |
499 cmp_mem_int(lir_cond_belowEqual, buffer, java_nio_Buffer::limit_offset(), index->as_jint(), info); | |
500 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
501 } else { | |
502 cmp_reg_mem(lir_cond_aboveEqual, index, buffer, | |
503 java_nio_Buffer::limit_offset(), T_INT, info); | |
504 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
505 } | |
506 __ move(index, result); | |
507 } | |
508 | |
509 | |
510 | |
511 void LIRGenerator::arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp_op, CodeEmitInfo* info) { | |
512 LIR_Opr result_op = result; | |
513 LIR_Opr left_op = left; | |
514 LIR_Opr right_op = right; | |
515 | |
516 if (TwoOperandLIRForm && left_op != result_op) { | |
517 assert(right_op != result_op, "malformed"); | |
518 __ move(left_op, result_op); | |
519 left_op = result_op; | |
520 } | |
521 | |
522 switch(code) { | |
523 case Bytecodes::_dadd: | |
524 case Bytecodes::_fadd: | |
525 case Bytecodes::_ladd: | |
526 case Bytecodes::_iadd: __ add(left_op, right_op, result_op); break; | |
527 case Bytecodes::_fmul: | |
528 case Bytecodes::_lmul: __ mul(left_op, right_op, result_op); break; | |
529 | |
530 case Bytecodes::_dmul: | |
531 { | |
532 if (is_strictfp) { | |
533 __ mul_strictfp(left_op, right_op, result_op, tmp_op); break; | |
534 } else { | |
535 __ mul(left_op, right_op, result_op); break; | |
536 } | |
537 } | |
538 break; | |
539 | |
540 case Bytecodes::_imul: | |
541 { | |
542 bool did_strength_reduce = false; | |
543 | |
544 if (right->is_constant()) { | |
545 int c = right->as_jint(); | |
546 if (is_power_of_2(c)) { | |
547 // do not need tmp here | |
548 __ shift_left(left_op, exact_log2(c), result_op); | |
549 did_strength_reduce = true; | |
550 } else { | |
551 did_strength_reduce = strength_reduce_multiply(left_op, c, result_op, tmp_op); | |
552 } | |
553 } | |
554 // we couldn't strength reduce so just emit the multiply | |
555 if (!did_strength_reduce) { | |
556 __ mul(left_op, right_op, result_op); | |
557 } | |
558 } | |
559 break; | |
560 | |
561 case Bytecodes::_dsub: | |
562 case Bytecodes::_fsub: | |
563 case Bytecodes::_lsub: | |
564 case Bytecodes::_isub: __ sub(left_op, right_op, result_op); break; | |
565 | |
566 case Bytecodes::_fdiv: __ div (left_op, right_op, result_op); break; | |
567 // ldiv and lrem are implemented with a direct runtime call | |
568 | |
569 case Bytecodes::_ddiv: | |
570 { | |
571 if (is_strictfp) { | |
572 __ div_strictfp (left_op, right_op, result_op, tmp_op); break; | |
573 } else { | |
574 __ div (left_op, right_op, result_op); break; | |
575 } | |
576 } | |
577 break; | |
578 | |
579 case Bytecodes::_drem: | |
580 case Bytecodes::_frem: __ rem (left_op, right_op, result_op); break; | |
581 | |
582 default: ShouldNotReachHere(); | |
583 } | |
584 } | |
585 | |
586 | |
587 void LIRGenerator::arithmetic_op_int(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp) { | |
588 arithmetic_op(code, result, left, right, false, tmp); | |
589 } | |
590 | |
591 | |
592 void LIRGenerator::arithmetic_op_long(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) { | |
593 arithmetic_op(code, result, left, right, false, LIR_OprFact::illegalOpr, info); | |
594 } | |
595 | |
596 | |
597 void LIRGenerator::arithmetic_op_fpu(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp) { | |
598 arithmetic_op(code, result, left, right, is_strictfp, tmp); | |
599 } | |
600 | |
601 | |
602 void LIRGenerator::shift_op(Bytecodes::Code code, LIR_Opr result_op, LIR_Opr value, LIR_Opr count, LIR_Opr tmp) { | |
603 if (TwoOperandLIRForm && value != result_op) { | |
604 assert(count != result_op, "malformed"); | |
605 __ move(value, result_op); | |
606 value = result_op; | |
607 } | |
608 | |
609 assert(count->is_constant() || count->is_register(), "must be"); | |
610 switch(code) { | |
611 case Bytecodes::_ishl: | |
612 case Bytecodes::_lshl: __ shift_left(value, count, result_op, tmp); break; | |
613 case Bytecodes::_ishr: | |
614 case Bytecodes::_lshr: __ shift_right(value, count, result_op, tmp); break; | |
615 case Bytecodes::_iushr: | |
616 case Bytecodes::_lushr: __ unsigned_shift_right(value, count, result_op, tmp); break; | |
617 default: ShouldNotReachHere(); | |
618 } | |
619 } | |
620 | |
621 | |
622 void LIRGenerator::logic_op (Bytecodes::Code code, LIR_Opr result_op, LIR_Opr left_op, LIR_Opr right_op) { | |
623 if (TwoOperandLIRForm && left_op != result_op) { | |
624 assert(right_op != result_op, "malformed"); | |
625 __ move(left_op, result_op); | |
626 left_op = result_op; | |
627 } | |
628 | |
629 switch(code) { | |
630 case Bytecodes::_iand: | |
631 case Bytecodes::_land: __ logical_and(left_op, right_op, result_op); break; | |
632 | |
633 case Bytecodes::_ior: | |
634 case Bytecodes::_lor: __ logical_or(left_op, right_op, result_op); break; | |
635 | |
636 case Bytecodes::_ixor: | |
637 case Bytecodes::_lxor: __ logical_xor(left_op, right_op, result_op); break; | |
638 | |
639 default: ShouldNotReachHere(); | |
640 } | |
641 } | |
642 | |
643 | |
644 void LIRGenerator::monitor_enter(LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info) { | |
645 if (!GenerateSynchronizationCode) return; | |
646 // for slow path, use debug info for state after successful locking | |
647 CodeStub* slow_path = new MonitorEnterStub(object, lock, info); | |
648 __ load_stack_address_monitor(monitor_no, lock); | |
649 // for handling NullPointerException, use debug info representing just the lock stack before this monitorenter | |
650 __ lock_object(hdr, object, lock, scratch, slow_path, info_for_exception); | |
651 } | |
652 | |
653 | |
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654 void LIRGenerator::monitor_exit(LIR_Opr object, LIR_Opr lock, LIR_Opr new_hdr, LIR_Opr scratch, int monitor_no) { |
0 | 655 if (!GenerateSynchronizationCode) return; |
656 // setup registers | |
657 LIR_Opr hdr = lock; | |
658 lock = new_hdr; | |
659 CodeStub* slow_path = new MonitorExitStub(lock, UseFastLocking, monitor_no); | |
660 __ load_stack_address_monitor(monitor_no, lock); | |
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661 __ unlock_object(hdr, object, lock, scratch, slow_path); |
0 | 662 } |
663 | |
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664 #ifndef PRODUCT |
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665 void LIRGenerator::print_if_not_loaded(const NewInstance* new_instance) { |
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666 if (PrintNotLoaded && !new_instance->klass()->is_loaded()) { |
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667 tty->print_cr(" ###class not loaded at new bci %d", new_instance->printable_bci()); |
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668 } else if (PrintNotLoaded && (TieredCompilation && new_instance->is_unresolved())) { |
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669 tty->print_cr(" ###class not resolved at new bci %d", new_instance->printable_bci()); |
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670 } |
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671 } |
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672 #endif |
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673 |
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674 void LIRGenerator::new_instance(LIR_Opr dst, ciInstanceKlass* klass, bool is_unresolved, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info) { |
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675 klass2reg_with_patching(klass_reg, klass, info, is_unresolved); |
0 | 676 // If klass is not loaded we do not know if the klass has finalizers: |
677 if (UseFastNewInstance && klass->is_loaded() | |
678 && !Klass::layout_helper_needs_slow_path(klass->layout_helper())) { | |
679 | |
680 Runtime1::StubID stub_id = klass->is_initialized() ? Runtime1::fast_new_instance_id : Runtime1::fast_new_instance_init_check_id; | |
681 | |
682 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, stub_id); | |
683 | |
684 assert(klass->is_loaded(), "must be loaded"); | |
685 // allocate space for instance | |
686 assert(klass->size_helper() >= 0, "illegal instance size"); | |
687 const int instance_size = align_object_size(klass->size_helper()); | |
688 __ allocate_object(dst, scratch1, scratch2, scratch3, scratch4, | |
689 oopDesc::header_size(), instance_size, klass_reg, !klass->is_initialized(), slow_path); | |
690 } else { | |
691 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, Runtime1::new_instance_id); | |
692 __ branch(lir_cond_always, T_ILLEGAL, slow_path); | |
693 __ branch_destination(slow_path->continuation()); | |
694 } | |
695 } | |
696 | |
697 | |
698 static bool is_constant_zero(Instruction* inst) { | |
699 IntConstant* c = inst->type()->as_IntConstant(); | |
700 if (c) { | |
701 return (c->value() == 0); | |
702 } | |
703 return false; | |
704 } | |
705 | |
706 | |
707 static bool positive_constant(Instruction* inst) { | |
708 IntConstant* c = inst->type()->as_IntConstant(); | |
709 if (c) { | |
710 return (c->value() >= 0); | |
711 } | |
712 return false; | |
713 } | |
714 | |
715 | |
716 static ciArrayKlass* as_array_klass(ciType* type) { | |
717 if (type != NULL && type->is_array_klass() && type->is_loaded()) { | |
718 return (ciArrayKlass*)type; | |
719 } else { | |
720 return NULL; | |
721 } | |
722 } | |
723 | |
2446 | 724 static ciType* phi_declared_type(Phi* phi) { |
725 ciType* t = phi->operand_at(0)->declared_type(); | |
726 if (t == NULL) { | |
727 return NULL; | |
728 } | |
729 for(int i = 1; i < phi->operand_count(); i++) { | |
730 if (t != phi->operand_at(i)->declared_type()) { | |
731 return NULL; | |
732 } | |
733 } | |
734 return t; | |
735 } | |
736 | |
0 | 737 void LIRGenerator::arraycopy_helper(Intrinsic* x, int* flagsp, ciArrayKlass** expected_typep) { |
738 Instruction* src = x->argument_at(0); | |
739 Instruction* src_pos = x->argument_at(1); | |
740 Instruction* dst = x->argument_at(2); | |
741 Instruction* dst_pos = x->argument_at(3); | |
742 Instruction* length = x->argument_at(4); | |
743 | |
744 // first try to identify the likely type of the arrays involved | |
745 ciArrayKlass* expected_type = NULL; | |
2446 | 746 bool is_exact = false, src_objarray = false, dst_objarray = false; |
0 | 747 { |
748 ciArrayKlass* src_exact_type = as_array_klass(src->exact_type()); | |
749 ciArrayKlass* src_declared_type = as_array_klass(src->declared_type()); | |
2446 | 750 Phi* phi; |
751 if (src_declared_type == NULL && (phi = src->as_Phi()) != NULL) { | |
752 src_declared_type = as_array_klass(phi_declared_type(phi)); | |
753 } | |
0 | 754 ciArrayKlass* dst_exact_type = as_array_klass(dst->exact_type()); |
755 ciArrayKlass* dst_declared_type = as_array_klass(dst->declared_type()); | |
2446 | 756 if (dst_declared_type == NULL && (phi = dst->as_Phi()) != NULL) { |
757 dst_declared_type = as_array_klass(phi_declared_type(phi)); | |
758 } | |
759 | |
0 | 760 if (src_exact_type != NULL && src_exact_type == dst_exact_type) { |
761 // the types exactly match so the type is fully known | |
762 is_exact = true; | |
763 expected_type = src_exact_type; | |
764 } else if (dst_exact_type != NULL && dst_exact_type->is_obj_array_klass()) { | |
765 ciArrayKlass* dst_type = (ciArrayKlass*) dst_exact_type; | |
766 ciArrayKlass* src_type = NULL; | |
767 if (src_exact_type != NULL && src_exact_type->is_obj_array_klass()) { | |
768 src_type = (ciArrayKlass*) src_exact_type; | |
769 } else if (src_declared_type != NULL && src_declared_type->is_obj_array_klass()) { | |
770 src_type = (ciArrayKlass*) src_declared_type; | |
771 } | |
772 if (src_type != NULL) { | |
773 if (src_type->element_type()->is_subtype_of(dst_type->element_type())) { | |
774 is_exact = true; | |
775 expected_type = dst_type; | |
776 } | |
777 } | |
778 } | |
779 // at least pass along a good guess | |
780 if (expected_type == NULL) expected_type = dst_exact_type; | |
781 if (expected_type == NULL) expected_type = src_declared_type; | |
782 if (expected_type == NULL) expected_type = dst_declared_type; | |
2446 | 783 |
784 src_objarray = (src_exact_type && src_exact_type->is_obj_array_klass()) || (src_declared_type && src_declared_type->is_obj_array_klass()); | |
785 dst_objarray = (dst_exact_type && dst_exact_type->is_obj_array_klass()) || (dst_declared_type && dst_declared_type->is_obj_array_klass()); | |
0 | 786 } |
787 | |
788 // if a probable array type has been identified, figure out if any | |
789 // of the required checks for a fast case can be elided. | |
790 int flags = LIR_OpArrayCopy::all_flags; | |
2446 | 791 |
792 if (!src_objarray) | |
793 flags &= ~LIR_OpArrayCopy::src_objarray; | |
794 if (!dst_objarray) | |
795 flags &= ~LIR_OpArrayCopy::dst_objarray; | |
796 | |
797 if (!x->arg_needs_null_check(0)) | |
798 flags &= ~LIR_OpArrayCopy::src_null_check; | |
799 if (!x->arg_needs_null_check(2)) | |
800 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
801 | |
802 | |
0 | 803 if (expected_type != NULL) { |
2446 | 804 Value length_limit = NULL; |
805 | |
806 IfOp* ifop = length->as_IfOp(); | |
807 if (ifop != NULL) { | |
808 // look for expressions like min(v, a.length) which ends up as | |
809 // x > y ? y : x or x >= y ? y : x | |
810 if ((ifop->cond() == If::gtr || ifop->cond() == If::geq) && | |
811 ifop->x() == ifop->fval() && | |
812 ifop->y() == ifop->tval()) { | |
813 length_limit = ifop->y(); | |
814 } | |
815 } | |
816 | |
817 // try to skip null checks and range checks | |
818 NewArray* src_array = src->as_NewArray(); | |
819 if (src_array != NULL) { | |
0 | 820 flags &= ~LIR_OpArrayCopy::src_null_check; |
2446 | 821 if (length_limit != NULL && |
822 src_array->length() == length_limit && | |
823 is_constant_zero(src_pos)) { | |
824 flags &= ~LIR_OpArrayCopy::src_range_check; | |
825 } | |
826 } | |
827 | |
828 NewArray* dst_array = dst->as_NewArray(); | |
829 if (dst_array != NULL) { | |
0 | 830 flags &= ~LIR_OpArrayCopy::dst_null_check; |
2446 | 831 if (length_limit != NULL && |
832 dst_array->length() == length_limit && | |
833 is_constant_zero(dst_pos)) { | |
834 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
835 } | |
836 } | |
0 | 837 |
838 // check from incoming constant values | |
839 if (positive_constant(src_pos)) | |
840 flags &= ~LIR_OpArrayCopy::src_pos_positive_check; | |
841 if (positive_constant(dst_pos)) | |
842 flags &= ~LIR_OpArrayCopy::dst_pos_positive_check; | |
843 if (positive_constant(length)) | |
844 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
845 | |
846 // see if the range check can be elided, which might also imply | |
847 // that src or dst is non-null. | |
848 ArrayLength* al = length->as_ArrayLength(); | |
849 if (al != NULL) { | |
850 if (al->array() == src) { | |
851 // it's the length of the source array | |
852 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
853 flags &= ~LIR_OpArrayCopy::src_null_check; | |
854 if (is_constant_zero(src_pos)) | |
855 flags &= ~LIR_OpArrayCopy::src_range_check; | |
856 } | |
857 if (al->array() == dst) { | |
858 // it's the length of the destination array | |
859 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
860 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
861 if (is_constant_zero(dst_pos)) | |
862 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
863 } | |
864 } | |
865 if (is_exact) { | |
866 flags &= ~LIR_OpArrayCopy::type_check; | |
867 } | |
868 } | |
869 | |
2446 | 870 IntConstant* src_int = src_pos->type()->as_IntConstant(); |
871 IntConstant* dst_int = dst_pos->type()->as_IntConstant(); | |
872 if (src_int && dst_int) { | |
873 int s_offs = src_int->value(); | |
874 int d_offs = dst_int->value(); | |
875 if (src_int->value() >= dst_int->value()) { | |
876 flags &= ~LIR_OpArrayCopy::overlapping; | |
877 } | |
878 if (expected_type != NULL) { | |
879 BasicType t = expected_type->element_type()->basic_type(); | |
880 int element_size = type2aelembytes(t); | |
881 if (((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && | |
882 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0)) { | |
883 flags &= ~LIR_OpArrayCopy::unaligned; | |
884 } | |
885 } | |
886 } else if (src_pos == dst_pos || is_constant_zero(dst_pos)) { | |
887 // src and dest positions are the same, or dst is zero so assume | |
888 // nonoverlapping copy. | |
889 flags &= ~LIR_OpArrayCopy::overlapping; | |
890 } | |
891 | |
0 | 892 if (src == dst) { |
893 // moving within a single array so no type checks are needed | |
894 if (flags & LIR_OpArrayCopy::type_check) { | |
895 flags &= ~LIR_OpArrayCopy::type_check; | |
896 } | |
897 } | |
898 *flagsp = flags; | |
899 *expected_typep = (ciArrayKlass*)expected_type; | |
900 } | |
901 | |
902 | |
903 LIR_Opr LIRGenerator::round_item(LIR_Opr opr) { | |
904 assert(opr->is_register(), "why spill if item is not register?"); | |
905 | |
906 if (RoundFPResults && UseSSE < 1 && opr->is_single_fpu()) { | |
907 LIR_Opr result = new_register(T_FLOAT); | |
908 set_vreg_flag(result, must_start_in_memory); | |
909 assert(opr->is_register(), "only a register can be spilled"); | |
910 assert(opr->value_type()->is_float(), "rounding only for floats available"); | |
911 __ roundfp(opr, LIR_OprFact::illegalOpr, result); | |
912 return result; | |
913 } | |
914 return opr; | |
915 } | |
916 | |
917 | |
918 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) { | |
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919 assert(type2size[t] == type2size[value->type()], |
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920 err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type()))); |
0 | 921 if (!value->is_register()) { |
922 // force into a register | |
923 LIR_Opr r = new_register(value->type()); | |
924 __ move(value, r); | |
925 value = r; | |
926 } | |
927 | |
928 // create a spill location | |
929 LIR_Opr tmp = new_register(t); | |
930 set_vreg_flag(tmp, LIRGenerator::must_start_in_memory); | |
931 | |
932 // move from register to spill | |
933 __ move(value, tmp); | |
934 return tmp; | |
935 } | |
936 | |
937 void LIRGenerator::profile_branch(If* if_instr, If::Condition cond) { | |
938 if (if_instr->should_profile()) { | |
939 ciMethod* method = if_instr->profiled_method(); | |
940 assert(method != NULL, "method should be set if branch is profiled"); | |
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941 ciMethodData* md = method->method_data_or_null(); |
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942 assert(md != NULL, "Sanity"); |
0 | 943 ciProfileData* data = md->bci_to_data(if_instr->profiled_bci()); |
944 assert(data != NULL, "must have profiling data"); | |
945 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
946 int taken_count_offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
947 int not_taken_count_offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
1783 | 948 if (if_instr->is_swapped()) { |
949 int t = taken_count_offset; | |
950 taken_count_offset = not_taken_count_offset; | |
951 not_taken_count_offset = t; | |
952 } | |
953 | |
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954 LIR_Opr md_reg = new_register(T_METADATA); |
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955 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 956 |
957 LIR_Opr data_offset_reg = new_pointer_register(); | |
0 | 958 __ cmove(lir_cond(cond), |
1783 | 959 LIR_OprFact::intptrConst(taken_count_offset), |
960 LIR_OprFact::intptrConst(not_taken_count_offset), | |
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961 data_offset_reg, as_BasicType(if_instr->x()->type())); |
1783 | 962 |
963 // MDO cells are intptr_t, so the data_reg width is arch-dependent. | |
964 LIR_Opr data_reg = new_pointer_register(); | |
965 LIR_Address* data_addr = new LIR_Address(md_reg, data_offset_reg, data_reg->type()); | |
2002 | 966 __ move(data_addr, data_reg); |
1783 | 967 // Use leal instead of add to avoid destroying condition codes on x86 |
0 | 968 LIR_Address* fake_incr_value = new LIR_Address(data_reg, DataLayout::counter_increment, T_INT); |
969 __ leal(LIR_OprFact::address(fake_incr_value), data_reg); | |
2002 | 970 __ move(data_reg, data_addr); |
0 | 971 } |
972 } | |
973 | |
974 // Phi technique: | |
975 // This is about passing live values from one basic block to the other. | |
976 // In code generated with Java it is rather rare that more than one | |
977 // value is on the stack from one basic block to the other. | |
978 // We optimize our technique for efficient passing of one value | |
979 // (of type long, int, double..) but it can be extended. | |
980 // When entering or leaving a basic block, all registers and all spill | |
981 // slots are release and empty. We use the released registers | |
982 // and spill slots to pass the live values from one block | |
983 // to the other. The topmost value, i.e., the value on TOS of expression | |
984 // stack is passed in registers. All other values are stored in spilling | |
985 // area. Every Phi has an index which designates its spill slot | |
986 // At exit of a basic block, we fill the register(s) and spill slots. | |
987 // At entry of a basic block, the block_prolog sets up the content of phi nodes | |
988 // and locks necessary registers and spilling slots. | |
989 | |
990 | |
991 // move current value to referenced phi function | |
992 void LIRGenerator::move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val) { | |
993 Phi* phi = sux_val->as_Phi(); | |
994 // cur_val can be null without phi being null in conjunction with inlining | |
995 if (phi != NULL && cur_val != NULL && cur_val != phi && !phi->is_illegal()) { | |
996 LIR_Opr operand = cur_val->operand(); | |
997 if (cur_val->operand()->is_illegal()) { | |
998 assert(cur_val->as_Constant() != NULL || cur_val->as_Local() != NULL, | |
999 "these can be produced lazily"); | |
1000 operand = operand_for_instruction(cur_val); | |
1001 } | |
1002 resolver->move(operand, operand_for_instruction(phi)); | |
1003 } | |
1004 } | |
1005 | |
1006 | |
1007 // Moves all stack values into their PHI position | |
1008 void LIRGenerator::move_to_phi(ValueStack* cur_state) { | |
1009 BlockBegin* bb = block(); | |
1010 if (bb->number_of_sux() == 1) { | |
1011 BlockBegin* sux = bb->sux_at(0); | |
1012 assert(sux->number_of_preds() > 0, "invalid CFG"); | |
1013 | |
1014 // a block with only one predecessor never has phi functions | |
1015 if (sux->number_of_preds() > 1) { | |
1016 int max_phis = cur_state->stack_size() + cur_state->locals_size(); | |
1017 PhiResolver resolver(this, _virtual_register_number + max_phis * 2); | |
1018 | |
1019 ValueStack* sux_state = sux->state(); | |
1020 Value sux_value; | |
1021 int index; | |
1022 | |
1819 | 1023 assert(cur_state->scope() == sux_state->scope(), "not matching"); |
1024 assert(cur_state->locals_size() == sux_state->locals_size(), "not matching"); | |
1025 assert(cur_state->stack_size() == sux_state->stack_size(), "not matching"); | |
1026 | |
0 | 1027 for_each_stack_value(sux_state, index, sux_value) { |
1028 move_to_phi(&resolver, cur_state->stack_at(index), sux_value); | |
1029 } | |
1030 | |
1031 for_each_local_value(sux_state, index, sux_value) { | |
1032 move_to_phi(&resolver, cur_state->local_at(index), sux_value); | |
1033 } | |
1034 | |
1035 assert(cur_state->caller_state() == sux_state->caller_state(), "caller states must be equal"); | |
1036 } | |
1037 } | |
1038 } | |
1039 | |
1040 | |
1041 LIR_Opr LIRGenerator::new_register(BasicType type) { | |
1042 int vreg = _virtual_register_number; | |
1043 // add a little fudge factor for the bailout, since the bailout is | |
1044 // only checked periodically. This gives a few extra registers to | |
1045 // hand out before we really run out, which helps us keep from | |
1046 // tripping over assertions. | |
1047 if (vreg + 20 >= LIR_OprDesc::vreg_max) { | |
1048 bailout("out of virtual registers"); | |
1049 if (vreg + 2 >= LIR_OprDesc::vreg_max) { | |
1050 // wrap it around | |
1051 _virtual_register_number = LIR_OprDesc::vreg_base; | |
1052 } | |
1053 } | |
1054 _virtual_register_number += 1; | |
1055 return LIR_OprFact::virtual_register(vreg, type); | |
1056 } | |
1057 | |
1058 | |
1059 // Try to lock using register in hint | |
1060 LIR_Opr LIRGenerator::rlock(Value instr) { | |
1061 return new_register(instr->type()); | |
1062 } | |
1063 | |
1064 | |
1065 // does an rlock and sets result | |
1066 LIR_Opr LIRGenerator::rlock_result(Value x) { | |
1067 LIR_Opr reg = rlock(x); | |
1068 set_result(x, reg); | |
1069 return reg; | |
1070 } | |
1071 | |
1072 | |
1073 // does an rlock and sets result | |
1074 LIR_Opr LIRGenerator::rlock_result(Value x, BasicType type) { | |
1075 LIR_Opr reg; | |
1076 switch (type) { | |
1077 case T_BYTE: | |
1078 case T_BOOLEAN: | |
1079 reg = rlock_byte(type); | |
1080 break; | |
1081 default: | |
1082 reg = rlock(x); | |
1083 break; | |
1084 } | |
1085 | |
1086 set_result(x, reg); | |
1087 return reg; | |
1088 } | |
1089 | |
1090 | |
1091 //--------------------------------------------------------------------- | |
1092 ciObject* LIRGenerator::get_jobject_constant(Value value) { | |
1093 ObjectType* oc = value->type()->as_ObjectType(); | |
1094 if (oc) { | |
1095 return oc->constant_value(); | |
1096 } | |
1097 return NULL; | |
1098 } | |
1099 | |
1100 | |
1101 void LIRGenerator::do_ExceptionObject(ExceptionObject* x) { | |
1102 assert(block()->is_set(BlockBegin::exception_entry_flag), "ExceptionObject only allowed in exception handler block"); | |
1103 assert(block()->next() == x, "ExceptionObject must be first instruction of block"); | |
1104 | |
1105 // no moves are created for phi functions at the begin of exception | |
1106 // handlers, so assign operands manually here | |
1107 for_each_phi_fun(block(), phi, | |
1108 operand_for_instruction(phi)); | |
1109 | |
1110 LIR_Opr thread_reg = getThreadPointer(); | |
2002 | 1111 __ move_wide(new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT), |
1112 exceptionOopOpr()); | |
1113 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1114 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT)); | |
1115 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1116 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_pc_offset()), T_OBJECT)); | |
0 | 1117 |
1118 LIR_Opr result = new_register(T_OBJECT); | |
1119 __ move(exceptionOopOpr(), result); | |
1120 set_result(x, result); | |
1121 } | |
1122 | |
1123 | |
1124 //---------------------------------------------------------------------- | |
1125 //---------------------------------------------------------------------- | |
1126 //---------------------------------------------------------------------- | |
1127 //---------------------------------------------------------------------- | |
1128 // visitor functions | |
1129 //---------------------------------------------------------------------- | |
1130 //---------------------------------------------------------------------- | |
1131 //---------------------------------------------------------------------- | |
1132 //---------------------------------------------------------------------- | |
1133 | |
1134 void LIRGenerator::do_Phi(Phi* x) { | |
1135 // phi functions are never visited directly | |
1136 ShouldNotReachHere(); | |
1137 } | |
1138 | |
1139 | |
1140 // Code for a constant is generated lazily unless the constant is frequently used and can't be inlined. | |
1141 void LIRGenerator::do_Constant(Constant* x) { | |
1819 | 1142 if (x->state_before() != NULL) { |
0 | 1143 // Any constant with a ValueStack requires patching so emit the patch here |
1144 LIR_Opr reg = rlock_result(x); | |
1819 | 1145 CodeEmitInfo* info = state_for(x, x->state_before()); |
0 | 1146 __ oop2reg_patch(NULL, reg, info); |
1147 } else if (x->use_count() > 1 && !can_inline_as_constant(x)) { | |
1148 if (!x->is_pinned()) { | |
1149 // unpinned constants are handled specially so that they can be | |
1150 // put into registers when they are used multiple times within a | |
1151 // block. After the block completes their operand will be | |
1152 // cleared so that other blocks can't refer to that register. | |
1153 set_result(x, load_constant(x)); | |
1154 } else { | |
1155 LIR_Opr res = x->operand(); | |
1156 if (!res->is_valid()) { | |
1157 res = LIR_OprFact::value_type(x->type()); | |
1158 } | |
1159 if (res->is_constant()) { | |
1160 LIR_Opr reg = rlock_result(x); | |
1161 __ move(res, reg); | |
1162 } else { | |
1163 set_result(x, res); | |
1164 } | |
1165 } | |
1166 } else { | |
1167 set_result(x, LIR_OprFact::value_type(x->type())); | |
1168 } | |
1169 } | |
1170 | |
1171 | |
1172 void LIRGenerator::do_Local(Local* x) { | |
1173 // operand_for_instruction has the side effect of setting the result | |
1174 // so there's no need to do it here. | |
1175 operand_for_instruction(x); | |
1176 } | |
1177 | |
1178 | |
1179 void LIRGenerator::do_IfInstanceOf(IfInstanceOf* x) { | |
1180 Unimplemented(); | |
1181 } | |
1182 | |
1183 | |
1184 void LIRGenerator::do_Return(Return* x) { | |
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1185 if (compilation()->env()->dtrace_method_probes()) { |
0 | 1186 BasicTypeList signature; |
2002 | 1187 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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1188 signature.append(T_METADATA); // Method* |
0 | 1189 LIR_OprList* args = new LIR_OprList(); |
1190 args->append(getThreadPointer()); | |
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1191 LIR_Opr meth = new_register(T_METADATA); |
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1192 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 1193 args->append(meth); |
1194 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL); | |
1195 } | |
1196 | |
1197 if (x->type()->is_void()) { | |
1198 __ return_op(LIR_OprFact::illegalOpr); | |
1199 } else { | |
1200 LIR_Opr reg = result_register_for(x->type(), /*callee=*/true); | |
1201 LIRItem result(x->result(), this); | |
1202 | |
1203 result.load_item_force(reg); | |
1204 __ return_op(result.result()); | |
1205 } | |
1206 set_no_result(x); | |
1207 } | |
1208 | |
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1209 // Examble: ref.get() |
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1210 // Combination of LoadField and g1 pre-write barrier |
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1211 void LIRGenerator::do_Reference_get(Intrinsic* x) { |
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1212 |
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1213 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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1214 guarantee(referent_offset > 0, "referent offset not initialized"); |
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1215 |
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1216 assert(x->number_of_arguments() == 1, "wrong type"); |
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1217 |
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1218 LIRItem reference(x->argument_at(0), this); |
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1219 reference.load_item(); |
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1220 |
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1221 // need to perform the null check on the reference objecy |
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1222 CodeEmitInfo* info = NULL; |
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1223 if (x->needs_null_check()) { |
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1224 info = state_for(x); |
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1225 } |
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1226 |
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1227 LIR_Address* referent_field_adr = |
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1228 new LIR_Address(reference.result(), referent_offset, T_OBJECT); |
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1229 |
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1230 LIR_Opr result = rlock_result(x); |
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1231 |
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1232 __ load(referent_field_adr, result, info); |
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1233 |
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1234 // Register the value in the referent field with the pre-barrier |
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1235 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
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1236 result /* pre_val */, |
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1237 false /* do_load */, |
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1238 false /* patch */, |
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1239 NULL /* info */); |
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1240 } |
0 | 1241 |
6135 | 1242 // Example: clazz.isInstance(object) |
1243 void LIRGenerator::do_isInstance(Intrinsic* x) { | |
1244 assert(x->number_of_arguments() == 2, "wrong type"); | |
1245 | |
1246 // TODO could try to substitute this node with an equivalent InstanceOf | |
1247 // if clazz is known to be a constant Class. This will pick up newly found | |
1248 // constants after HIR construction. I'll leave this to a future change. | |
1249 | |
1250 // as a first cut, make a simple leaf call to runtime to stay platform independent. | |
1251 // could follow the aastore example in a future change. | |
1252 | |
1253 LIRItem clazz(x->argument_at(0), this); | |
1254 LIRItem object(x->argument_at(1), this); | |
1255 clazz.load_item(); | |
1256 object.load_item(); | |
1257 LIR_Opr result = rlock_result(x); | |
1258 | |
1259 // need to perform null check on clazz | |
1260 if (x->needs_null_check()) { | |
1261 CodeEmitInfo* info = state_for(x); | |
1262 __ null_check(clazz.result(), info); | |
1263 } | |
1264 | |
1265 LIR_Opr call_result = call_runtime(clazz.value(), object.value(), | |
1266 CAST_FROM_FN_PTR(address, Runtime1::is_instance_of), | |
1267 x->type(), | |
1268 NULL); // NULL CodeEmitInfo results in a leaf call | |
1269 __ move(call_result, result); | |
1270 } | |
1271 | |
0 | 1272 // Example: object.getClass () |
1273 void LIRGenerator::do_getClass(Intrinsic* x) { | |
1274 assert(x->number_of_arguments() == 1, "wrong type"); | |
1275 | |
1276 LIRItem rcvr(x->argument_at(0), this); | |
1277 rcvr.load_item(); | |
12955 | 1278 LIR_Opr temp = new_register(T_METADATA); |
0 | 1279 LIR_Opr result = rlock_result(x); |
1280 | |
1281 // need to perform the null check on the rcvr | |
1282 CodeEmitInfo* info = NULL; | |
1283 if (x->needs_null_check()) { | |
1819 | 1284 info = state_for(x); |
0 | 1285 } |
12955 | 1286 |
1287 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the | |
1288 // meaning of these two is mixed up (see JDK-8026837). | |
1289 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info); | |
1290 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); | |
0 | 1291 } |
1292 | |
1293 | |
1294 // Example: Thread.currentThread() | |
1295 void LIRGenerator::do_currentThread(Intrinsic* x) { | |
1296 assert(x->number_of_arguments() == 0, "wrong type"); | |
1297 LIR_Opr reg = rlock_result(x); | |
2002 | 1298 __ move_wide(new LIR_Address(getThreadPointer(), in_bytes(JavaThread::threadObj_offset()), T_OBJECT), reg); |
0 | 1299 } |
1300 | |
1301 | |
1302 void LIRGenerator::do_RegisterFinalizer(Intrinsic* x) { | |
1303 assert(x->number_of_arguments() == 1, "wrong type"); | |
1304 LIRItem receiver(x->argument_at(0), this); | |
1305 | |
1306 receiver.load_item(); | |
1307 BasicTypeList signature; | |
1308 signature.append(T_OBJECT); // receiver | |
1309 LIR_OprList* args = new LIR_OprList(); | |
1310 args->append(receiver.result()); | |
1311 CodeEmitInfo* info = state_for(x, x->state()); | |
1312 call_runtime(&signature, args, | |
1313 CAST_FROM_FN_PTR(address, Runtime1::entry_for(Runtime1::register_finalizer_id)), | |
1314 voidType, info); | |
1315 | |
1316 set_no_result(x); | |
1317 } | |
1318 | |
1319 | |
1320 //------------------------local access-------------------------------------- | |
1321 | |
1322 LIR_Opr LIRGenerator::operand_for_instruction(Instruction* x) { | |
1323 if (x->operand()->is_illegal()) { | |
1324 Constant* c = x->as_Constant(); | |
1325 if (c != NULL) { | |
1326 x->set_operand(LIR_OprFact::value_type(c->type())); | |
1327 } else { | |
1328 assert(x->as_Phi() || x->as_Local() != NULL, "only for Phi and Local"); | |
1329 // allocate a virtual register for this local or phi | |
1330 x->set_operand(rlock(x)); | |
1331 _instruction_for_operand.at_put_grow(x->operand()->vreg_number(), x, NULL); | |
1332 } | |
1333 } | |
1334 return x->operand(); | |
1335 } | |
1336 | |
1337 | |
1338 Instruction* LIRGenerator::instruction_for_opr(LIR_Opr opr) { | |
1339 if (opr->is_virtual()) { | |
1340 return instruction_for_vreg(opr->vreg_number()); | |
1341 } | |
1342 return NULL; | |
1343 } | |
1344 | |
1345 | |
1346 Instruction* LIRGenerator::instruction_for_vreg(int reg_num) { | |
1347 if (reg_num < _instruction_for_operand.length()) { | |
1348 return _instruction_for_operand.at(reg_num); | |
1349 } | |
1350 return NULL; | |
1351 } | |
1352 | |
1353 | |
1354 void LIRGenerator::set_vreg_flag(int vreg_num, VregFlag f) { | |
1355 if (_vreg_flags.size_in_bits() == 0) { | |
1356 BitMap2D temp(100, num_vreg_flags); | |
1357 temp.clear(); | |
1358 _vreg_flags = temp; | |
1359 } | |
1360 _vreg_flags.at_put_grow(vreg_num, f, true); | |
1361 } | |
1362 | |
1363 bool LIRGenerator::is_vreg_flag_set(int vreg_num, VregFlag f) { | |
1364 if (!_vreg_flags.is_valid_index(vreg_num, f)) { | |
1365 return false; | |
1366 } | |
1367 return _vreg_flags.at(vreg_num, f); | |
1368 } | |
1369 | |
1370 | |
1371 // Block local constant handling. This code is useful for keeping | |
1372 // unpinned constants and constants which aren't exposed in the IR in | |
1373 // registers. Unpinned Constant instructions have their operands | |
1374 // cleared when the block is finished so that other blocks can't end | |
1375 // up referring to their registers. | |
1376 | |
1377 LIR_Opr LIRGenerator::load_constant(Constant* x) { | |
1378 assert(!x->is_pinned(), "only for unpinned constants"); | |
1379 _unpinned_constants.append(x); | |
1380 return load_constant(LIR_OprFact::value_type(x->type())->as_constant_ptr()); | |
1381 } | |
1382 | |
1383 | |
1384 LIR_Opr LIRGenerator::load_constant(LIR_Const* c) { | |
1385 BasicType t = c->type(); | |
1386 for (int i = 0; i < _constants.length(); i++) { | |
1387 LIR_Const* other = _constants.at(i); | |
1388 if (t == other->type()) { | |
1389 switch (t) { | |
1390 case T_INT: | |
1391 case T_FLOAT: | |
1392 if (c->as_jint_bits() != other->as_jint_bits()) continue; | |
1393 break; | |
1394 case T_LONG: | |
1395 case T_DOUBLE: | |
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1396 if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue; |
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1397 if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue; |
0 | 1398 break; |
1399 case T_OBJECT: | |
1400 if (c->as_jobject() != other->as_jobject()) continue; | |
1401 break; | |
1402 } | |
1403 return _reg_for_constants.at(i); | |
1404 } | |
1405 } | |
1406 | |
1407 LIR_Opr result = new_register(t); | |
1408 __ move((LIR_Opr)c, result); | |
1409 _constants.append(c); | |
1410 _reg_for_constants.append(result); | |
1411 return result; | |
1412 } | |
1413 | |
1414 // Various barriers | |
1415 | |
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1416 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1417 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1418 // Do the pre-write barrier, if any. |
1419 switch (_bs->kind()) { | |
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1420 #if INCLUDE_ALL_GCS |
342 | 1421 case BarrierSet::G1SATBCT: |
1422 case BarrierSet::G1SATBCTLogging: | |
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1423 G1SATBCardTableModRef_pre_barrier(addr_opr, pre_val, do_load, patch, info); |
342 | 1424 break; |
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1425 #endif // INCLUDE_ALL_GCS |
342 | 1426 case BarrierSet::CardTableModRef: |
1427 case BarrierSet::CardTableExtension: | |
1428 // No pre barriers | |
1429 break; | |
1430 case BarrierSet::ModRef: | |
1431 case BarrierSet::Other: | |
1432 // No pre barriers | |
1433 break; | |
1434 default : | |
1435 ShouldNotReachHere(); | |
1436 | |
1437 } | |
1438 } | |
1439 | |
0 | 1440 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
342 | 1441 switch (_bs->kind()) { |
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1442 #if INCLUDE_ALL_GCS |
342 | 1443 case BarrierSet::G1SATBCT: |
1444 case BarrierSet::G1SATBCTLogging: | |
1445 G1SATBCardTableModRef_post_barrier(addr, new_val); | |
1446 break; | |
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1447 #endif // INCLUDE_ALL_GCS |
0 | 1448 case BarrierSet::CardTableModRef: |
1449 case BarrierSet::CardTableExtension: | |
1450 CardTableModRef_post_barrier(addr, new_val); | |
1451 break; | |
1452 case BarrierSet::ModRef: | |
1453 case BarrierSet::Other: | |
1454 // No post barriers | |
1455 break; | |
1456 default : | |
1457 ShouldNotReachHere(); | |
1458 } | |
1459 } | |
1460 | |
342 | 1461 //////////////////////////////////////////////////////////////////////// |
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1462 #if INCLUDE_ALL_GCS |
342 | 1463 |
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1464 void LIRGenerator::G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1465 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1466 // First we test whether marking is in progress. |
1467 BasicType flag_type; | |
1468 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
1469 flag_type = T_INT; | |
1470 } else { | |
1471 guarantee(in_bytes(PtrQueue::byte_width_of_active()) == 1, | |
1472 "Assumption"); | |
1473 flag_type = T_BYTE; | |
1474 } | |
1475 LIR_Opr thrd = getThreadPointer(); | |
1476 LIR_Address* mark_active_flag_addr = | |
1477 new LIR_Address(thrd, | |
1478 in_bytes(JavaThread::satb_mark_queue_offset() + | |
1479 PtrQueue::byte_offset_of_active()), | |
1480 flag_type); | |
1481 // Read the marking-in-progress flag. | |
1482 LIR_Opr flag_val = new_register(T_INT); | |
1483 __ load(mark_active_flag_addr, flag_val); | |
1484 __ cmp(lir_cond_notEqual, flag_val, LIR_OprFact::intConst(0)); | |
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1485 |
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1486 LIR_PatchCode pre_val_patch_code = lir_patch_none; |
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1487 |
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1488 CodeStub* slow; |
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1489 |
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1490 if (do_load) { |
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1491 assert(pre_val == LIR_OprFact::illegalOpr, "sanity"); |
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1492 assert(addr_opr != LIR_OprFact::illegalOpr, "sanity"); |
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1493 |
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1494 if (patch) |
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1495 pre_val_patch_code = lir_patch_normal; |
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1496 |
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1497 pre_val = new_register(T_OBJECT); |
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1498 |
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1499 if (!addr_opr->is_address()) { |
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1500 assert(addr_opr->is_register(), "must be"); |
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1501 addr_opr = LIR_OprFact::address(new LIR_Address(addr_opr, T_OBJECT)); |
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1502 } |
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1503 slow = new G1PreBarrierStub(addr_opr, pre_val, pre_val_patch_code, info); |
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1504 } else { |
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1505 assert(addr_opr == LIR_OprFact::illegalOpr, "sanity"); |
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1506 assert(pre_val->is_register(), "must be"); |
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1507 assert(pre_val->type() == T_OBJECT, "must be an object"); |
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1508 assert(info == NULL, "sanity"); |
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1509 |
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1510 slow = new G1PreBarrierStub(pre_val); |
342 | 1511 } |
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1512 |
342 | 1513 __ branch(lir_cond_notEqual, T_INT, slow); |
1514 __ branch_destination(slow->continuation()); | |
1515 } | |
1516 | |
1517 void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { | |
1518 // If the "new_val" is a constant NULL, no barrier is necessary. | |
1519 if (new_val->is_constant() && | |
1520 new_val->as_constant_ptr()->as_jobject() == NULL) return; | |
1521 | |
1522 if (!new_val->is_register()) { | |
1572 | 1523 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1524 if (new_val->is_constant()) { |
1525 __ move(new_val, new_val_reg); | |
1526 } else { | |
1527 __ leal(new_val, new_val_reg); | |
1528 } | |
1529 new_val = new_val_reg; | |
1530 } | |
1531 assert(new_val->is_register(), "must be a register at this point"); | |
1532 | |
1533 if (addr->is_address()) { | |
1534 LIR_Address* address = addr->as_address_ptr(); | |
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1535 LIR_Opr ptr = new_pointer_register(); |
342 | 1536 if (!address->index()->is_valid() && address->disp() == 0) { |
1537 __ move(address->base(), ptr); | |
1538 } else { | |
1539 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1540 __ leal(addr, ptr); | |
1541 } | |
1542 addr = ptr; | |
1543 } | |
1544 assert(addr->is_register(), "must be a register at this point"); | |
1545 | |
1546 LIR_Opr xor_res = new_pointer_register(); | |
1547 LIR_Opr xor_shift_res = new_pointer_register(); | |
1548 if (TwoOperandLIRForm ) { | |
1549 __ move(addr, xor_res); | |
1550 __ logical_xor(xor_res, new_val, xor_res); | |
1551 __ move(xor_res, xor_shift_res); | |
1552 __ unsigned_shift_right(xor_shift_res, | |
1553 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1554 xor_shift_res, | |
1555 LIR_OprDesc::illegalOpr()); | |
1556 } else { | |
1557 __ logical_xor(addr, new_val, xor_res); | |
1558 __ unsigned_shift_right(xor_res, | |
1559 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1560 xor_shift_res, | |
1561 LIR_OprDesc::illegalOpr()); | |
1562 } | |
1563 | |
1564 if (!new_val->is_register()) { | |
1572 | 1565 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1566 __ leal(new_val, new_val_reg); |
1567 new_val = new_val_reg; | |
1568 } | |
1569 assert(new_val->is_register(), "must be a register at this point"); | |
1570 | |
1571 __ cmp(lir_cond_notEqual, xor_shift_res, LIR_OprFact::intptrConst(NULL_WORD)); | |
1572 | |
1573 CodeStub* slow = new G1PostBarrierStub(addr, new_val); | |
1572 | 1574 __ branch(lir_cond_notEqual, LP64_ONLY(T_LONG) NOT_LP64(T_INT), slow); |
342 | 1575 __ branch_destination(slow->continuation()); |
1576 } | |
1577 | |
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1578 #endif // INCLUDE_ALL_GCS |
342 | 1579 //////////////////////////////////////////////////////////////////////// |
1580 | |
0 | 1581 void LIRGenerator::CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
1582 | |
342 | 1583 assert(sizeof(*((CardTableModRefBS*)_bs)->byte_map_base) == sizeof(jbyte), "adjust this code"); |
1584 LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base); | |
0 | 1585 if (addr->is_address()) { |
1586 LIR_Address* address = addr->as_address_ptr(); | |
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1587 // ptr cannot be an object because we use this barrier for array card marks |
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1588 // and addr can point in the middle of an array. |
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1589 LIR_Opr ptr = new_pointer_register(); |
0 | 1590 if (!address->index()->is_valid() && address->disp() == 0) { |
1591 __ move(address->base(), ptr); | |
1592 } else { | |
1593 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1594 __ leal(addr, ptr); | |
1595 } | |
1596 addr = ptr; | |
1597 } | |
1598 assert(addr->is_register(), "must be a register at this point"); | |
1599 | |
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1600 #ifdef CARDTABLEMODREF_POST_BARRIER_HELPER |
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1601 CardTableModRef_post_barrier_helper(addr, card_table_base); |
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1602 #else |
0 | 1603 LIR_Opr tmp = new_pointer_register(); |
1604 if (TwoOperandLIRForm) { | |
1605 __ move(addr, tmp); | |
1606 __ unsigned_shift_right(tmp, CardTableModRefBS::card_shift, tmp); | |
1607 } else { | |
1608 __ unsigned_shift_right(addr, CardTableModRefBS::card_shift, tmp); | |
1609 } | |
1610 if (can_inline_as_constant(card_table_base)) { | |
1611 __ move(LIR_OprFact::intConst(0), | |
1612 new LIR_Address(tmp, card_table_base->as_jint(), T_BYTE)); | |
1613 } else { | |
1614 __ move(LIR_OprFact::intConst(0), | |
1615 new LIR_Address(tmp, load_constant(card_table_base), | |
1616 T_BYTE)); | |
1617 } | |
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1618 #endif |
0 | 1619 } |
1620 | |
1621 | |
1622 //------------------------field access-------------------------------------- | |
1623 | |
1624 // Comment copied form templateTable_i486.cpp | |
1625 // ---------------------------------------------------------------------------- | |
1626 // Volatile variables demand their effects be made known to all CPU's in | |
1627 // order. Store buffers on most chips allow reads & writes to reorder; the | |
1628 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
1629 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
1630 // reorder volatile references, the hardware also must not reorder them). | |
1631 // | |
1632 // According to the new Java Memory Model (JMM): | |
1633 // (1) All volatiles are serialized wrt to each other. | |
1634 // ALSO reads & writes act as aquire & release, so: | |
1635 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
1636 // the read float up to before the read. It's OK for non-volatile memory refs | |
1637 // that happen before the volatile read to float down below it. | |
1638 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
1639 // that happen BEFORE the write float down to after the write. It's OK for | |
1640 // non-volatile memory refs that happen after the volatile write to float up | |
1641 // before it. | |
1642 // | |
1643 // We only put in barriers around volatile refs (they are expensive), not | |
1644 // _between_ memory refs (that would require us to track the flavor of the | |
1645 // previous memory refs). Requirements (2) and (3) require some barriers | |
1646 // before volatile stores and after volatile loads. These nearly cover | |
1647 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
1648 // case is placed after volatile-stores although it could just as well go | |
1649 // before volatile-loads. | |
1650 | |
1651 | |
1652 void LIRGenerator::do_StoreField(StoreField* x) { | |
1653 bool needs_patching = x->needs_patching(); | |
1654 bool is_volatile = x->field()->is_volatile(); | |
1655 BasicType field_type = x->field_type(); | |
1656 bool is_oop = (field_type == T_ARRAY || field_type == T_OBJECT); | |
1657 | |
1658 CodeEmitInfo* info = NULL; | |
1659 if (needs_patching) { | |
1660 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1661 info = state_for(x, x->state_before()); | |
1662 } else if (x->needs_null_check()) { | |
1663 NullCheck* nc = x->explicit_null_check(); | |
1664 if (nc == NULL) { | |
1819 | 1665 info = state_for(x); |
0 | 1666 } else { |
1667 info = state_for(nc); | |
1668 } | |
1669 } | |
1670 | |
1671 | |
1672 LIRItem object(x->obj(), this); | |
1673 LIRItem value(x->value(), this); | |
1674 | |
1675 object.load_item(); | |
1676 | |
1677 if (is_volatile || needs_patching) { | |
1678 // load item if field is volatile (fewer special cases for volatiles) | |
1679 // load item if field not initialized | |
1680 // load item if field not constant | |
1681 // because of code patching we cannot inline constants | |
1682 if (field_type == T_BYTE || field_type == T_BOOLEAN) { | |
1683 value.load_byte_item(); | |
1684 } else { | |
1685 value.load_item(); | |
1686 } | |
1687 } else { | |
1688 value.load_for_store(field_type); | |
1689 } | |
1690 | |
1691 set_no_result(x); | |
1692 | |
1819 | 1693 #ifndef PRODUCT |
0 | 1694 if (PrintNotLoaded && needs_patching) { |
1695 tty->print_cr(" ###class not loaded at store_%s bci %d", | |
1819 | 1696 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1697 } |
1819 | 1698 #endif |
0 | 1699 |
1700 if (x->needs_null_check() && | |
1701 (needs_patching || | |
1702 MacroAssembler::needs_explicit_null_check(x->offset()))) { | |
1703 // emit an explicit null check because the offset is too large | |
1704 __ null_check(object.result(), new CodeEmitInfo(info)); | |
1705 } | |
1706 | |
1707 LIR_Address* address; | |
1708 if (needs_patching) { | |
1709 // we need to patch the offset in the instruction so don't allow | |
1710 // generate_address to try to be smart about emitting the -1. | |
1711 // Otherwise the patching code won't know how to find the | |
1712 // instruction to patch. | |
1681
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1713 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1714 } else { |
1715 address = generate_address(object.result(), x->offset(), field_type); | |
1716 } | |
1717 | |
1718 if (is_volatile && os::is_MP()) { | |
1719 __ membar_release(); | |
1720 } | |
1721 | |
342 | 1722 if (is_oop) { |
1723 // Do the pre-write barrier, if any. | |
1724 pre_barrier(LIR_OprFact::address(address), | |
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1725 LIR_OprFact::illegalOpr /* pre_val */, |
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1726 true /* do_load*/, |
342 | 1727 needs_patching, |
1728 (info ? new CodeEmitInfo(info) : NULL)); | |
1729 } | |
1730 | |
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1731 if (is_volatile && !needs_patching) { |
0 | 1732 volatile_field_store(value.result(), address, info); |
1733 } else { | |
1734 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1735 __ store(value.result(), address, info, patch_code); | |
1736 } | |
1737 | |
1738 if (is_oop) { | |
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1739 // Store to object so mark the card of the header |
0 | 1740 post_barrier(object.result(), value.result()); |
1741 } | |
1742 | |
1743 if (is_volatile && os::is_MP()) { | |
1744 __ membar(); | |
1745 } | |
1746 } | |
1747 | |
1748 | |
1749 void LIRGenerator::do_LoadField(LoadField* x) { | |
1750 bool needs_patching = x->needs_patching(); | |
1751 bool is_volatile = x->field()->is_volatile(); | |
1752 BasicType field_type = x->field_type(); | |
1753 | |
1754 CodeEmitInfo* info = NULL; | |
1755 if (needs_patching) { | |
1756 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1757 info = state_for(x, x->state_before()); | |
1758 } else if (x->needs_null_check()) { | |
1759 NullCheck* nc = x->explicit_null_check(); | |
1760 if (nc == NULL) { | |
1819 | 1761 info = state_for(x); |
0 | 1762 } else { |
1763 info = state_for(nc); | |
1764 } | |
1765 } | |
1766 | |
1767 LIRItem object(x->obj(), this); | |
1768 | |
1769 object.load_item(); | |
1770 | |
1819 | 1771 #ifndef PRODUCT |
0 | 1772 if (PrintNotLoaded && needs_patching) { |
1773 tty->print_cr(" ###class not loaded at load_%s bci %d", | |
1819 | 1774 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1775 } |
1819 | 1776 #endif |
0 | 1777 |
8860 | 1778 bool stress_deopt = StressLoopInvariantCodeMotion && info && info->deoptimize_on_exception(); |
0 | 1779 if (x->needs_null_check() && |
1780 (needs_patching || | |
8860 | 1781 MacroAssembler::needs_explicit_null_check(x->offset()) || |
1782 stress_deopt)) { | |
1783 LIR_Opr obj = object.result(); | |
1784 if (stress_deopt) { | |
1785 obj = new_register(T_OBJECT); | |
1786 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1787 } | |
0 | 1788 // emit an explicit null check because the offset is too large |
8860 | 1789 __ null_check(obj, new CodeEmitInfo(info)); |
0 | 1790 } |
1791 | |
1792 LIR_Opr reg = rlock_result(x, field_type); | |
1793 LIR_Address* address; | |
1794 if (needs_patching) { | |
1795 // we need to patch the offset in the instruction so don't allow | |
1796 // generate_address to try to be smart about emitting the -1. | |
1797 // Otherwise the patching code won't know how to find the | |
1798 // instruction to patch. | |
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1799 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1800 } else { |
1801 address = generate_address(object.result(), x->offset(), field_type); | |
1802 } | |
1803 | |
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1804 if (is_volatile && !needs_patching) { |
0 | 1805 volatile_field_load(address, reg, info); |
1806 } else { | |
1807 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1808 __ load(address, reg, info, patch_code); | |
1809 } | |
1810 | |
1811 if (is_volatile && os::is_MP()) { | |
1812 __ membar_acquire(); | |
1813 } | |
1814 } | |
1815 | |
1816 | |
1817 //------------------------java.nio.Buffer.checkIndex------------------------ | |
1818 | |
1819 // int java.nio.Buffer.checkIndex(int) | |
1820 void LIRGenerator::do_NIOCheckIndex(Intrinsic* x) { | |
1821 // NOTE: by the time we are in checkIndex() we are guaranteed that | |
1822 // the buffer is non-null (because checkIndex is package-private and | |
1823 // only called from within other methods in the buffer). | |
1824 assert(x->number_of_arguments() == 2, "wrong type"); | |
1825 LIRItem buf (x->argument_at(0), this); | |
1826 LIRItem index(x->argument_at(1), this); | |
1827 buf.load_item(); | |
1828 index.load_item(); | |
1829 | |
1830 LIR_Opr result = rlock_result(x); | |
1831 if (GenerateRangeChecks) { | |
1832 CodeEmitInfo* info = state_for(x); | |
1833 CodeStub* stub = new RangeCheckStub(info, index.result(), true); | |
1834 if (index.result()->is_constant()) { | |
1835 cmp_mem_int(lir_cond_belowEqual, buf.result(), java_nio_Buffer::limit_offset(), index.result()->as_jint(), info); | |
1836 __ branch(lir_cond_belowEqual, T_INT, stub); | |
1837 } else { | |
1838 cmp_reg_mem(lir_cond_aboveEqual, index.result(), buf.result(), | |
1839 java_nio_Buffer::limit_offset(), T_INT, info); | |
1840 __ branch(lir_cond_aboveEqual, T_INT, stub); | |
1841 } | |
1842 __ move(index.result(), result); | |
1843 } else { | |
1844 // Just load the index into the result register | |
1845 __ move(index.result(), result); | |
1846 } | |
1847 } | |
1848 | |
1849 | |
1850 //------------------------array access-------------------------------------- | |
1851 | |
1852 | |
1853 void LIRGenerator::do_ArrayLength(ArrayLength* x) { | |
1854 LIRItem array(x->array(), this); | |
1855 array.load_item(); | |
1856 LIR_Opr reg = rlock_result(x); | |
1857 | |
1858 CodeEmitInfo* info = NULL; | |
1859 if (x->needs_null_check()) { | |
1860 NullCheck* nc = x->explicit_null_check(); | |
1861 if (nc == NULL) { | |
1862 info = state_for(x); | |
1863 } else { | |
1864 info = state_for(nc); | |
1865 } | |
8860 | 1866 if (StressLoopInvariantCodeMotion && info->deoptimize_on_exception()) { |
1867 LIR_Opr obj = new_register(T_OBJECT); | |
1868 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1869 __ null_check(obj, new CodeEmitInfo(info)); | |
1870 } | |
0 | 1871 } |
1872 __ load(new LIR_Address(array.result(), arrayOopDesc::length_offset_in_bytes(), T_INT), reg, info, lir_patch_none); | |
1873 } | |
1874 | |
1875 | |
1876 void LIRGenerator::do_LoadIndexed(LoadIndexed* x) { | |
1877 bool use_length = x->length() != NULL; | |
1878 LIRItem array(x->array(), this); | |
1879 LIRItem index(x->index(), this); | |
1880 LIRItem length(this); | |
8860 | 1881 bool needs_range_check = x->compute_needs_range_check(); |
1882 | |
1883 if (use_length && needs_range_check) { | |
1884 length.set_instruction(x->length()); | |
1885 length.load_item(); | |
0 | 1886 } |
1887 | |
1888 array.load_item(); | |
1889 if (index.is_constant() && can_inline_as_constant(x->index())) { | |
1890 // let it be a constant | |
1891 index.dont_load_item(); | |
1892 } else { | |
1893 index.load_item(); | |
1894 } | |
1895 | |
1896 CodeEmitInfo* range_check_info = state_for(x); | |
1897 CodeEmitInfo* null_check_info = NULL; | |
1898 if (x->needs_null_check()) { | |
1899 NullCheck* nc = x->explicit_null_check(); | |
1900 if (nc != NULL) { | |
1901 null_check_info = state_for(nc); | |
1902 } else { | |
1903 null_check_info = range_check_info; | |
1904 } | |
8860 | 1905 if (StressLoopInvariantCodeMotion && null_check_info->deoptimize_on_exception()) { |
1906 LIR_Opr obj = new_register(T_OBJECT); | |
1907 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1908 __ null_check(obj, new CodeEmitInfo(null_check_info)); | |
1909 } | |
0 | 1910 } |
1911 | |
1912 // emit array address setup early so it schedules better | |
1913 LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), false); | |
1914 | |
1915 if (GenerateRangeChecks && needs_range_check) { | |
8860 | 1916 if (StressLoopInvariantCodeMotion && range_check_info->deoptimize_on_exception()) { |
1917 __ branch(lir_cond_always, T_ILLEGAL, new RangeCheckStub(range_check_info, index.result())); | |
1918 } else if (use_length) { | |
0 | 1919 // TODO: use a (modified) version of array_range_check that does not require a |
1920 // constant length to be loaded to a register | |
1921 __ cmp(lir_cond_belowEqual, length.result(), index.result()); | |
1922 __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result())); | |
1923 } else { | |
1924 array_range_check(array.result(), index.result(), null_check_info, range_check_info); | |
1925 // The range check performs the null check, so clear it out for the load | |
1926 null_check_info = NULL; | |
1927 } | |
1928 } | |
1929 | |
1930 __ move(array_addr, rlock_result(x, x->elt_type()), null_check_info); | |
1931 } | |
1932 | |
1933 | |
1934 void LIRGenerator::do_NullCheck(NullCheck* x) { | |
1935 if (x->can_trap()) { | |
1936 LIRItem value(x->obj(), this); | |
1937 value.load_item(); | |
1938 CodeEmitInfo* info = state_for(x); | |
1939 __ null_check(value.result(), info); | |
1940 } | |
1941 } | |
1942 | |
1943 | |
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1944 void LIRGenerator::do_TypeCast(TypeCast* x) { |
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1945 LIRItem value(x->obj(), this); |
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1946 value.load_item(); |
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1947 // the result is the same as from the node we are casting |
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1948 set_result(x, value.result()); |
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1949 } |
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1950 |
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1951 |
0 | 1952 void LIRGenerator::do_Throw(Throw* x) { |
1953 LIRItem exception(x->exception(), this); | |
1954 exception.load_item(); | |
1955 set_no_result(x); | |
1956 LIR_Opr exception_opr = exception.result(); | |
1957 CodeEmitInfo* info = state_for(x, x->state()); | |
1958 | |
1959 #ifndef PRODUCT | |
1960 if (PrintC1Statistics) { | |
1783 | 1961 increment_counter(Runtime1::throw_count_address(), T_INT); |
0 | 1962 } |
1963 #endif | |
1964 | |
1965 // check if the instruction has an xhandler in any of the nested scopes | |
1966 bool unwind = false; | |
1967 if (info->exception_handlers()->length() == 0) { | |
1968 // this throw is not inside an xhandler | |
1969 unwind = true; | |
1970 } else { | |
1971 // get some idea of the throw type | |
1972 bool type_is_exact = true; | |
1973 ciType* throw_type = x->exception()->exact_type(); | |
1974 if (throw_type == NULL) { | |
1975 type_is_exact = false; | |
1976 throw_type = x->exception()->declared_type(); | |
1977 } | |
1978 if (throw_type != NULL && throw_type->is_instance_klass()) { | |
1979 ciInstanceKlass* throw_klass = (ciInstanceKlass*)throw_type; | |
1980 unwind = !x->exception_handlers()->could_catch(throw_klass, type_is_exact); | |
1981 } | |
1982 } | |
1983 | |
1984 // do null check before moving exception oop into fixed register | |
1985 // to avoid a fixed interval with an oop during the null check. | |
1986 // Use a copy of the CodeEmitInfo because debug information is | |
1987 // different for null_check and throw. | |
1988 if (GenerateCompilerNullChecks && | |
1989 (x->exception()->as_NewInstance() == NULL && x->exception()->as_ExceptionObject() == NULL)) { | |
1990 // if the exception object wasn't created using new then it might be null. | |
1819 | 1991 __ null_check(exception_opr, new CodeEmitInfo(info, x->state()->copy(ValueStack::ExceptionState, x->state()->bci()))); |
0 | 1992 } |
1993 | |
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1994 if (compilation()->env()->jvmti_can_post_on_exceptions()) { |
0 | 1995 // we need to go through the exception lookup path to get JVMTI |
1996 // notification done | |
1997 unwind = false; | |
1998 } | |
1999 | |
2000 // move exception oop into fixed register | |
2001 __ move(exception_opr, exceptionOopOpr()); | |
2002 | |
2003 if (unwind) { | |
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2004 __ unwind_exception(exceptionOopOpr()); |
0 | 2005 } else { |
2006 __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info); | |
2007 } | |
2008 } | |
2009 | |
2010 | |
2011 void LIRGenerator::do_RoundFP(RoundFP* x) { | |
2012 LIRItem input(x->input(), this); | |
2013 input.load_item(); | |
2014 LIR_Opr input_opr = input.result(); | |
2015 assert(input_opr->is_register(), "why round if value is not in a register?"); | |
2016 assert(input_opr->is_single_fpu() || input_opr->is_double_fpu(), "input should be floating-point value"); | |
2017 if (input_opr->is_single_fpu()) { | |
2018 set_result(x, round_item(input_opr)); // This code path not currently taken | |
2019 } else { | |
2020 LIR_Opr result = new_register(T_DOUBLE); | |
2021 set_vreg_flag(result, must_start_in_memory); | |
2022 __ roundfp(input_opr, LIR_OprFact::illegalOpr, result); | |
2023 set_result(x, result); | |
2024 } | |
2025 } | |
2026 | |
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2027 // Here UnsafeGetRaw may have x->base() and x->index() be int or long |
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2028 // on both 64 and 32 bits. Expecting x->base() to be always long on 64bit. |
0 | 2029 void LIRGenerator::do_UnsafeGetRaw(UnsafeGetRaw* x) { |
2030 LIRItem base(x->base(), this); | |
2031 LIRItem idx(this); | |
2032 | |
2033 base.load_item(); | |
2034 if (x->has_index()) { | |
2035 idx.set_instruction(x->index()); | |
2036 idx.load_nonconstant(); | |
2037 } | |
2038 | |
2039 LIR_Opr reg = rlock_result(x, x->basic_type()); | |
2040 | |
2041 int log2_scale = 0; | |
2042 if (x->has_index()) { | |
2043 log2_scale = x->log2_scale(); | |
2044 } | |
2045 | |
2046 assert(!x->has_index() || idx.value() == x->index(), "should match"); | |
2047 | |
2048 LIR_Opr base_op = base.result(); | |
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2049 LIR_Opr index_op = idx.result(); |
0 | 2050 #ifndef _LP64 |
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2051 if (base_op->type() == T_LONG) { |
0 | 2052 base_op = new_register(T_INT); |
2053 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
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2054 } |
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2055 if (x->has_index()) { |
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2056 if (index_op->type() == T_LONG) { |
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2057 LIR_Opr long_index_op = index_op; |
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2058 if (index_op->is_constant()) { |
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2059 long_index_op = new_register(T_LONG); |
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2060 __ move(index_op, long_index_op); |
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2061 } |
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2062 index_op = new_register(T_INT); |
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2063 __ convert(Bytecodes::_l2i, long_index_op, index_op); |
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2064 } else { |
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2065 assert(x->index()->type()->tag() == intTag, "must be"); |
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2066 } |
0 | 2067 } |
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2068 // At this point base and index should be all ints. |
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2069 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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2070 assert(!x->has_index() || index_op->type() == T_INT, "index should be an int"); |
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2071 #else |
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2072 if (x->has_index()) { |
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2073 if (index_op->type() == T_INT) { |
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2074 if (!index_op->is_constant()) { |
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2075 index_op = new_register(T_LONG); |
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2076 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
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2077 } |
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|
2078 } else { |
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2079 assert(index_op->type() == T_LONG, "must be"); |
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2080 if (index_op->is_constant()) { |
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2081 index_op = new_register(T_LONG); |
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2082 __ move(idx.result(), index_op); |
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|
2083 } |
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|
2084 } |
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|
2085 } |
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2086 // At this point base is a long non-constant |
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2087 // Index is a long register or a int constant. |
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2088 // We allow the constant to stay an int because that would allow us a more compact encoding by |
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2089 // embedding an immediate offset in the address expression. If we have a long constant, we have to |
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2090 // move it into a register first. |
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2091 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a long non-constant"); |
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2092 assert(!x->has_index() || (index_op->type() == T_INT && index_op->is_constant()) || |
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2093 (index_op->type() == T_LONG && !index_op->is_constant()), "unexpected index type"); |
0 | 2094 #endif |
2095 | |
2096 BasicType dst_type = x->basic_type(); | |
2097 | |
2098 LIR_Address* addr; | |
2099 if (index_op->is_constant()) { | |
2100 assert(log2_scale == 0, "must not have a scale"); | |
20491
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2101 assert(index_op->type() == T_INT, "only int constants supported"); |
0 | 2102 addr = new LIR_Address(base_op, index_op->as_jint(), dst_type); |
2103 } else { | |
304 | 2104 #ifdef X86 |
0 | 2105 addr = new LIR_Address(base_op, index_op, LIR_Address::Scale(log2_scale), 0, dst_type); |
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2106 #elif defined(GENERATE_ADDRESS_IS_PREFERRED) |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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2107 addr = generate_address(base_op, index_op, log2_scale, 0, dst_type); |
0 | 2108 #else |
2109 if (index_op->is_illegal() || log2_scale == 0) { | |
2110 addr = new LIR_Address(base_op, index_op, dst_type); | |
2111 } else { | |
1060 | 2112 LIR_Opr tmp = new_pointer_register(); |
0 | 2113 __ shift_left(index_op, log2_scale, tmp); |
2114 addr = new LIR_Address(base_op, tmp, dst_type); | |
2115 } | |
2116 #endif | |
2117 } | |
2118 | |
2119 if (x->may_be_unaligned() && (dst_type == T_LONG || dst_type == T_DOUBLE)) { | |
2120 __ unaligned_move(addr, reg); | |
2121 } else { | |
2002 | 2122 if (dst_type == T_OBJECT && x->is_wide()) { |
2123 __ move_wide(addr, reg); | |
2124 } else { | |
2125 __ move(addr, reg); | |
2126 } | |
0 | 2127 } |
2128 } | |
2129 | |
2130 | |
2131 void LIRGenerator::do_UnsafePutRaw(UnsafePutRaw* x) { | |
2132 int log2_scale = 0; | |
2133 BasicType type = x->basic_type(); | |
2134 | |
2135 if (x->has_index()) { | |
2136 log2_scale = x->log2_scale(); | |
2137 } | |
2138 | |
2139 LIRItem base(x->base(), this); | |
2140 LIRItem value(x->value(), this); | |
2141 LIRItem idx(this); | |
2142 | |
2143 base.load_item(); | |
2144 if (x->has_index()) { | |
2145 idx.set_instruction(x->index()); | |
2146 idx.load_item(); | |
2147 } | |
2148 | |
2149 if (type == T_BYTE || type == T_BOOLEAN) { | |
2150 value.load_byte_item(); | |
2151 } else { | |
2152 value.load_item(); | |
2153 } | |
2154 | |
2155 set_no_result(x); | |
2156 | |
2157 LIR_Opr base_op = base.result(); | |
20491
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2158 LIR_Opr index_op = idx.result(); |
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2159 |
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2160 #ifdef GENERATE_ADDRESS_IS_PREFERRED |
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2161 LIR_Address* addr = generate_address(base_op, index_op, log2_scale, 0, x->basic_type()); |
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2162 #else |
0 | 2163 #ifndef _LP64 |
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2164 if (base_op->type() == T_LONG) { |
0 | 2165 base_op = new_register(T_INT); |
2166 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
20491
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2167 } |
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|
2168 if (x->has_index()) { |
20519
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|
2169 if (index_op->type() == T_LONG) { |
20491
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2170 index_op = new_register(T_INT); |
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2171 __ convert(Bytecodes::_l2i, idx.result(), index_op); |
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2172 } |
0 | 2173 } |
20491
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2174 // At this point base and index should be all ints and not constants |
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2175 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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2176 assert(!x->has_index() || (index_op->type() == T_INT && !index_op->is_constant()), "index should be an non-constant int"); |
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|
2177 #else |
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|
2178 if (x->has_index()) { |
20519
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|
2179 if (index_op->type() == T_INT) { |
20491
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|
2180 index_op = new_register(T_LONG); |
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2181 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
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|
2182 } |
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|
2183 } |
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|
2184 // At this point base and index are long and non-constant |
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|
2185 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a non-constant long"); |
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|
2186 assert(!x->has_index() || (index_op->type() == T_LONG && !index_op->is_constant()), "index must be a non-constant long"); |
0 | 2187 #endif |
2188 | |
2189 if (log2_scale != 0) { | |
2190 // temporary fix (platform dependent code without shift on Intel would be better) | |
20491
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|
2191 // TODO: ARM also allows embedded shift in the address |
0 | 2192 __ shift_left(index_op, log2_scale, index_op); |
2193 } | |
2194 | |
2195 LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type()); | |
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|
2196 #endif // !GENERATE_ADDRESS_IS_PREFERRED |
0 | 2197 __ move(value.result(), addr); |
2198 } | |
2199 | |
2200 | |
2201 void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) { | |
2202 BasicType type = x->basic_type(); | |
2203 LIRItem src(x->object(), this); | |
2204 LIRItem off(x->offset(), this); | |
2205 | |
2206 off.load_item(); | |
2207 src.load_item(); | |
2208 | |
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2209 LIR_Opr value = rlock_result(x, x->basic_type()); |
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|
2210 |
09aad8452938
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|
2211 get_Object_unsafe(value, src.result(), off.result(), type, x->is_volatile()); |
3249
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|
2212 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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|
2213 #if INCLUDE_ALL_GCS |
3249
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|
2214 // We might be reading the value of the referent field of a |
e1162778c1c8
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|
2215 // Reference object in order to attach it back to the live |
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|
2216 // object graph. If G1 is enabled then we need to record |
e1162778c1c8
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|
2217 // the value that is being returned in an SATB log buffer. |
e1162778c1c8
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|
2218 // |
e1162778c1c8
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|
2219 // We need to generate code similar to the following... |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2220 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2221 // if (offset == java_lang_ref_Reference::referent_offset) { |
e1162778c1c8
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|
2222 // if (src != NULL) { |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2223 // if (klass(src)->reference_type() != REF_NONE) { |
6615
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|
2224 // pre_barrier(..., value, ...); |
3249
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|
2225 // } |
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|
2226 // } |
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|
2227 // } |
e1162778c1c8
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|
2228 |
e1162778c1c8
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|
2229 if (UseG1GC && type == T_OBJECT) { |
6615
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|
2230 bool gen_pre_barrier = true; // Assume we need to generate pre_barrier. |
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|
2231 bool gen_offset_check = true; // Assume we need to generate the offset guard. |
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|
2232 bool gen_source_check = true; // Assume we need to check the src object for null. |
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|
2233 bool gen_type_check = true; // Assume we need to check the reference_type. |
3249
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|
2234 |
e1162778c1c8
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|
2235 if (off.is_constant()) { |
3254
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|
2236 jlong off_con = (off.type()->is_int() ? |
59766fd005ff
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|
2237 (jlong) off.get_jint_constant() : |
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|
2238 off.get_jlong_constant()); |
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|
2239 |
59766fd005ff
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|
2240 |
59766fd005ff
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|
2241 if (off_con != (jlong) java_lang_ref_Reference::referent_offset) { |
3249
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2242 // The constant offset is something other than referent_offset. |
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2243 // We can skip generating/checking the remaining guards and |
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2244 // skip generation of the code stub. |
6615
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2245 gen_pre_barrier = false; |
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2246 } else { |
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2247 // The constant offset is the same as referent_offset - |
e1162778c1c8
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|
2248 // we do not need to generate a runtime offset check. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2249 gen_offset_check = false; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2250 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
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|
2251 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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2357
diff
changeset
|
2252 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2253 // We don't need to generate stub if the source object is an array |
6615
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|
2254 if (gen_pre_barrier && src.type()->is_array()) { |
09aad8452938
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|
2255 gen_pre_barrier = false; |
3249
e1162778c1c8
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parents:
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diff
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|
2256 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2257 |
6615
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|
2258 if (gen_pre_barrier) { |
3249
e1162778c1c8
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johnc
parents:
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|
2259 // We still need to continue with the checks. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2260 if (src.is_constant()) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2261 ciObject* src_con = src.get_jobject_constant(); |
10397
075ea888b039
8010724: [parfait] Null pointer dereference in hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
morris
parents:
10116
diff
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|
2262 guarantee(src_con != NULL, "no source constant"); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2263 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2264 if (src_con->is_null_object()) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2265 // The constant src object is null - We can skip |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2266 // generating the code stub. |
6615
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|
2267 gen_pre_barrier = false; |
3249
e1162778c1c8
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|
2268 } else { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2269 // Non-null constant source object. We still have to generate |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2270 // the slow stub - but we don't need to generate the runtime |
e1162778c1c8
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|
2271 // null object check. |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2272 gen_source_check = false; |
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|
2273 } |
e1162778c1c8
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|
2274 } |
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|
2275 } |
6615
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|
2276 if (gen_pre_barrier && !PatchALot) { |
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|
2277 // Can the klass of object be statically determined to be |
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|
2278 // a sub-class of Reference? |
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2279 ciType* type = src.value()->declared_type(); |
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|
2280 if ((type != NULL) && type->is_loaded()) { |
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|
2281 if (type->is_subtype_of(compilation()->env()->Reference_klass())) { |
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|
2282 gen_type_check = false; |
09aad8452938
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|
2283 } else if (type->is_klass() && |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2284 !compilation()->env()->Object_klass()->is_subtype_of(type->as_klass())) { |
09aad8452938
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|
2285 // Not Reference and not Object klass. |
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|
2286 gen_pre_barrier = false; |
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|
2287 } |
09aad8452938
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|
2288 } |
09aad8452938
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|
2289 } |
09aad8452938
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kvn
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|
2290 |
09aad8452938
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|
2291 if (gen_pre_barrier) { |
09aad8452938
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|
2292 LabelObj* Lcont = new LabelObj(); |
3249
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|
2293 |
e1162778c1c8
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|
2294 // We can have generate one runtime check here. Let's start with |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2295 // the offset check. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2296 if (gen_offset_check) { |
6615
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|
2297 // if (offset != referent_offset) -> continue |
3254
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2298 // If offset is an int then we can do the comparison with the |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2299 // referent_offset constant; otherwise we need to move |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2300 // referent_offset into a temporary register and generate |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2301 // a reg-reg compare. |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2302 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2303 LIR_Opr referent_off; |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2304 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2305 if (off.type()->is_int()) { |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2306 referent_off = LIR_OprFact::intConst(java_lang_ref_Reference::referent_offset); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2307 } else { |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2308 assert(off.type()->is_long(), "what else?"); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2309 referent_off = new_register(T_LONG); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2310 __ move(LIR_OprFact::longConst(java_lang_ref_Reference::referent_offset), referent_off); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2311 } |
6615
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6266
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|
2312 __ cmp(lir_cond_notEqual, off.result(), referent_off); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2313 __ branch(lir_cond_notEqual, as_BasicType(off.type()), Lcont->label()); |
09aad8452938
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|
2314 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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6266
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|
2315 if (gen_source_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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6266
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|
2316 // offset is a const and equals referent offset |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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6266
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|
2317 // if (source == null) -> continue |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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parents:
6266
diff
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|
2318 __ cmp(lir_cond_equal, src.result(), LIR_OprFact::oopConst(NULL)); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2319 __ branch(lir_cond_equal, T_OBJECT, Lcont->label()); |
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2320 } |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2321 LIR_Opr src_klass = new_register(T_OBJECT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2322 if (gen_type_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2323 // We have determined that offset == referent_offset && src != null. |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2324 // if (src->_klass->_reference_type == REF_NONE) -> continue |
12000
8d77d02828d9
8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
twisti
parents:
11080
diff
changeset
|
2325 __ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), src_klass); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2326 LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE); |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2327 LIR_Opr reference_type = new_register(T_INT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2328 __ move(reference_type_addr, reference_type); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2329 __ cmp(lir_cond_equal, reference_type, LIR_OprFact::intConst(REF_NONE)); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2330 __ branch(lir_cond_equal, T_INT, Lcont->label()); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
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|
2331 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2332 { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2333 // We have determined that src->_klass->_reference_type != REF_NONE |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2334 // so register the value in the referent field with the pre-barrier. |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2335 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2336 value /* pre_val */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2337 false /* do_load */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2338 false /* patch */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2339 NULL /* info */); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
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|
2340 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2341 __ branch_destination(Lcont->label()); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2342 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2343 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
changeset
|
2344 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2345 |
0 | 2346 if (x->is_volatile() && os::is_MP()) __ membar_acquire(); |
2347 } | |
2348 | |
2349 | |
2350 void LIRGenerator::do_UnsafePutObject(UnsafePutObject* x) { | |
2351 BasicType type = x->basic_type(); | |
2352 LIRItem src(x->object(), this); | |
2353 LIRItem off(x->offset(), this); | |
2354 LIRItem data(x->value(), this); | |
2355 | |
2356 src.load_item(); | |
2357 if (type == T_BOOLEAN || type == T_BYTE) { | |
2358 data.load_byte_item(); | |
2359 } else { | |
2360 data.load_item(); | |
2361 } | |
2362 off.load_item(); | |
2363 | |
2364 set_no_result(x); | |
2365 | |
2366 if (x->is_volatile() && os::is_MP()) __ membar_release(); | |
2367 put_Object_unsafe(src.result(), off.result(), data.result(), type, x->is_volatile()); | |
2123
df307487d610
7010665: Misplaced membar in C1 implementation of Unsafe.get/putXXX
dholmes
parents:
2007
diff
changeset
|
2368 if (x->is_volatile() && os::is_MP()) __ membar(); |
0 | 2369 } |
2370 | |
2371 | |
2372 void LIRGenerator::do_UnsafePrefetch(UnsafePrefetch* x, bool is_store) { | |
2373 LIRItem src(x->object(), this); | |
2374 LIRItem off(x->offset(), this); | |
2375 | |
2376 src.load_item(); | |
2377 if (off.is_constant() && can_inline_as_constant(x->offset())) { | |
2378 // let it be a constant | |
2379 off.dont_load_item(); | |
2380 } else { | |
2381 off.load_item(); | |
2382 } | |
2383 | |
2384 set_no_result(x); | |
2385 | |
2386 LIR_Address* addr = generate_address(src.result(), off.result(), 0, 0, T_BYTE); | |
2387 __ prefetch(addr, is_store); | |
2388 } | |
2389 | |
2390 | |
2391 void LIRGenerator::do_UnsafePrefetchRead(UnsafePrefetchRead* x) { | |
2392 do_UnsafePrefetch(x, false); | |
2393 } | |
2394 | |
2395 | |
2396 void LIRGenerator::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) { | |
2397 do_UnsafePrefetch(x, true); | |
2398 } | |
2399 | |
2400 | |
2401 void LIRGenerator::do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux) { | |
2402 int lng = x->length(); | |
2403 | |
2404 for (int i = 0; i < lng; i++) { | |
2405 SwitchRange* one_range = x->at(i); | |
2406 int low_key = one_range->low_key(); | |
2407 int high_key = one_range->high_key(); | |
2408 BlockBegin* dest = one_range->sux(); | |
2409 if (low_key == high_key) { | |
2410 __ cmp(lir_cond_equal, value, low_key); | |
2411 __ branch(lir_cond_equal, T_INT, dest); | |
2412 } else if (high_key - low_key == 1) { | |
2413 __ cmp(lir_cond_equal, value, low_key); | |
2414 __ branch(lir_cond_equal, T_INT, dest); | |
2415 __ cmp(lir_cond_equal, value, high_key); | |
2416 __ branch(lir_cond_equal, T_INT, dest); | |
2417 } else { | |
2418 LabelObj* L = new LabelObj(); | |
2419 __ cmp(lir_cond_less, value, low_key); | |
4816 | 2420 __ branch(lir_cond_less, T_INT, L->label()); |
0 | 2421 __ cmp(lir_cond_lessEqual, value, high_key); |
2422 __ branch(lir_cond_lessEqual, T_INT, dest); | |
2423 __ branch_destination(L->label()); | |
2424 } | |
2425 } | |
2426 __ jump(default_sux); | |
2427 } | |
2428 | |
2429 | |
2430 SwitchRangeArray* LIRGenerator::create_lookup_ranges(TableSwitch* x) { | |
2431 SwitchRangeList* res = new SwitchRangeList(); | |
2432 int len = x->length(); | |
2433 if (len > 0) { | |
2434 BlockBegin* sux = x->sux_at(0); | |
2435 int key = x->lo_key(); | |
2436 BlockBegin* default_sux = x->default_sux(); | |
2437 SwitchRange* range = new SwitchRange(key, sux); | |
2438 for (int i = 0; i < len; i++, key++) { | |
2439 BlockBegin* new_sux = x->sux_at(i); | |
2440 if (sux == new_sux) { | |
2441 // still in same range | |
2442 range->set_high_key(key); | |
2443 } else { | |
2444 // skip tests which explicitly dispatch to the default | |
2445 if (sux != default_sux) { | |
2446 res->append(range); | |
2447 } | |
2448 range = new SwitchRange(key, new_sux); | |
2449 } | |
2450 sux = new_sux; | |
2451 } | |
2452 if (res->length() == 0 || res->last() != range) res->append(range); | |
2453 } | |
2454 return res; | |
2455 } | |
2456 | |
2457 | |
2458 // we expect the keys to be sorted by increasing value | |
2459 SwitchRangeArray* LIRGenerator::create_lookup_ranges(LookupSwitch* x) { | |
2460 SwitchRangeList* res = new SwitchRangeList(); | |
2461 int len = x->length(); | |
2462 if (len > 0) { | |
2463 BlockBegin* default_sux = x->default_sux(); | |
2464 int key = x->key_at(0); | |
2465 BlockBegin* sux = x->sux_at(0); | |
2466 SwitchRange* range = new SwitchRange(key, sux); | |
2467 for (int i = 1; i < len; i++) { | |
2468 int new_key = x->key_at(i); | |
2469 BlockBegin* new_sux = x->sux_at(i); | |
2470 if (key+1 == new_key && sux == new_sux) { | |
2471 // still in same range | |
2472 range->set_high_key(new_key); | |
2473 } else { | |
2474 // skip tests which explicitly dispatch to the default | |
2475 if (range->sux() != default_sux) { | |
2476 res->append(range); | |
2477 } | |
2478 range = new SwitchRange(new_key, new_sux); | |
2479 } | |
2480 key = new_key; | |
2481 sux = new_sux; | |
2482 } | |
2483 if (res->length() == 0 || res->last() != range) res->append(range); | |
2484 } | |
2485 return res; | |
2486 } | |
2487 | |
2488 | |
2489 void LIRGenerator::do_TableSwitch(TableSwitch* x) { | |
2490 LIRItem tag(x->tag(), this); | |
2491 tag.load_item(); | |
2492 set_no_result(x); | |
2493 | |
2494 if (x->is_safepoint()) { | |
2495 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2496 } | |
2497 | |
2498 // move values into phi locations | |
2499 move_to_phi(x->state()); | |
2500 | |
2501 int lo_key = x->lo_key(); | |
2502 int hi_key = x->hi_key(); | |
2503 int len = x->length(); | |
2504 LIR_Opr value = tag.result(); | |
2505 if (UseTableRanges) { | |
2506 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2507 } else { | |
2508 for (int i = 0; i < len; i++) { | |
2509 __ cmp(lir_cond_equal, value, i + lo_key); | |
2510 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2511 } | |
2512 __ jump(x->default_sux()); | |
2513 } | |
2514 } | |
2515 | |
2516 | |
2517 void LIRGenerator::do_LookupSwitch(LookupSwitch* x) { | |
2518 LIRItem tag(x->tag(), this); | |
2519 tag.load_item(); | |
2520 set_no_result(x); | |
2521 | |
2522 if (x->is_safepoint()) { | |
2523 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2524 } | |
2525 | |
2526 // move values into phi locations | |
2527 move_to_phi(x->state()); | |
2528 | |
2529 LIR_Opr value = tag.result(); | |
2530 if (UseTableRanges) { | |
2531 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2532 } else { | |
2533 int len = x->length(); | |
2534 for (int i = 0; i < len; i++) { | |
2535 __ cmp(lir_cond_equal, value, x->key_at(i)); | |
2536 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2537 } | |
2538 __ jump(x->default_sux()); | |
2539 } | |
2540 } | |
2541 | |
2542 | |
2543 void LIRGenerator::do_Goto(Goto* x) { | |
2544 set_no_result(x); | |
2545 | |
2546 if (block()->next()->as_OsrEntry()) { | |
2547 // need to free up storage used for OSR entry point | |
2548 LIR_Opr osrBuffer = block()->next()->operand(); | |
2549 BasicTypeList signature; | |
22837
134cdf5e0b8a
8037140: C1: Incorrect argument type used for SharedRuntime::OSR_migration_end in LIRGenerator::do_Goto
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20519
diff
changeset
|
2550 signature.append(NOT_LP64(T_INT) LP64_ONLY(T_LONG)); // pass a pointer to osrBuffer |
0 | 2551 CallingConvention* cc = frame_map()->c_calling_convention(&signature); |
2552 __ move(osrBuffer, cc->args()->at(0)); | |
2553 __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_end), | |
2554 getThreadTemp(), LIR_OprFact::illegalOpr, cc->args()); | |
2555 } | |
2556 | |
2557 if (x->is_safepoint()) { | |
2558 ValueStack* state = x->state_before() ? x->state_before() : x->state(); | |
2559 | |
2560 // increment backedge counter if needed | |
1783 | 2561 CodeEmitInfo* info = state_for(x, state); |
3997
940513efe83a
7097679: Tiered: events with bad bci to Gotos reduced from Ifs
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3964
diff
changeset
|
2562 increment_backedge_counter(info, x->profiled_bci()); |
0 | 2563 CodeEmitInfo* safepoint_info = state_for(x, state); |
2564 __ safepoint(safepoint_poll_register(), safepoint_info); | |
2565 } | |
2566 | |
1783 | 2567 // Gotos can be folded Ifs, handle this case. |
2568 if (x->should_profile()) { | |
2569 ciMethod* method = x->profiled_method(); | |
2570 assert(method != NULL, "method should be set if branch is profiled"); | |
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
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2002
diff
changeset
|
2571 ciMethodData* md = method->method_data_or_null(); |
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
2572 assert(md != NULL, "Sanity"); |
1783 | 2573 ciProfileData* data = md->bci_to_data(x->profiled_bci()); |
2574 assert(data != NULL, "must have profiling data"); | |
2575 int offset; | |
2576 if (x->direction() == Goto::taken) { | |
2577 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2578 offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
2579 } else if (x->direction() == Goto::not_taken) { | |
2580 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2581 offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
2582 } else { | |
2583 assert(data->is_JumpData(), "need JumpData for branches"); | |
2584 offset = md->byte_offset_of_slot(data, JumpData::taken_offset()); | |
2585 } | |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2586 LIR_Opr md_reg = new_register(T_METADATA); |
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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6731
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changeset
|
2587 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 2588 |
2589 increment_counter(new LIR_Address(md_reg, offset, | |
2590 NOT_LP64(T_INT) LP64_ONLY(T_LONG)), DataLayout::counter_increment); | |
2591 } | |
2592 | |
0 | 2593 // emit phi-instruction move after safepoint since this simplifies |
2594 // describing the state as the safepoint. | |
2595 move_to_phi(x->state()); | |
2596 | |
2597 __ jump(x->default_sux()); | |
2598 } | |
2599 | |
13078
e6ba215af802
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12969
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|
2600 /** |
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12969
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|
2601 * Emit profiling code if needed for arguments, parameters, return value types |
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|
2602 * |
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|
2603 * @param md MDO the code will update at runtime |
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|
2604 * @param md_base_offset common offset in the MDO for this profile and subsequent ones |
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|
2605 * @param md_offset offset in the MDO (on top of md_base_offset) for this profile |
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|
2606 * @param profiled_k current profile |
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|
2607 * @param obj IR node for the object to be profiled |
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roland
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12969
diff
changeset
|
2608 * @param mdp register to hold the pointer inside the MDO (md + md_base_offset). |
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12969
diff
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|
2609 * Set once we find an update to make and use for next ones. |
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12969
diff
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|
2610 * @param not_null true if we know obj cannot be null |
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8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2611 * @param signature_at_call_k signature at call for obj |
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8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2612 * @param callee_signature_k signature of callee for obj |
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8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
changeset
|
2613 * at call and callee signatures differ at method handle call |
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8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
changeset
|
2614 * @return the only klass we know will ever be seen at this profile point |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2615 */ |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
changeset
|
2616 ciKlass* LIRGenerator::profile_type(ciMethodData* md, int md_base_offset, int md_offset, intptr_t profiled_k, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2617 Value obj, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2618 ciKlass* callee_signature_k) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2619 ciKlass* result = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2620 bool do_null = !not_null && !TypeEntries::was_null_seen(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
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changeset
|
2621 bool do_update = !TypeEntries::is_type_unknown(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
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|
2622 // known not to be null or null bit already set and already set to |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2623 // unknown: nothing we can do to improve profiling |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2624 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2625 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2626 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
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|
2627 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2628 ciKlass* exact_klass = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2629 Compilation* comp = Compilation::current(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2630 if (do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2631 // try to find exact type, using CHA if possible, so that loading |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2632 // the klass from the object can be avoided |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2633 ciType* type = obj->exact_type(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2634 if (type == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2635 type = obj->declared_type(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2636 type = comp->cha_exact_type(type); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2637 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2638 assert(type == NULL || type->is_klass(), "type should be class"); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2639 exact_klass = (type != NULL && type->is_loaded()) ? (ciKlass*)type : NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2640 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2641 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2642 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2643 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2644 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2645 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2646 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2647 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2648 ciKlass* exact_signature_k = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2649 if (do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2650 // Is the type from the signature exact (the only one possible)? |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2651 exact_signature_k = signature_at_call_k->exact_klass(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2652 if (exact_signature_k == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2653 exact_signature_k = comp->cha_exact_type(signature_at_call_k); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2654 } else { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2655 result = exact_signature_k; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2656 // Known statically. No need to emit any code: prevent |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2657 // LIR_Assembler::emit_profile_type() from emitting useless code |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2658 profiled_k = ciTypeEntries::with_status(result, profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
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|
2659 } |
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2660 // exact_klass and exact_signature_k can be both non NULL but |
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2661 // different if exact_klass is loaded after the ciObject for |
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2662 // exact_signature_k is created. |
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2663 if (exact_klass == NULL && exact_signature_k != NULL && exact_klass != exact_signature_k) { |
12875
d13d7aba8c12
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roland
parents:
12868
diff
changeset
|
2664 // sometimes the type of the signature is better than the best type |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2665 // the compiler has |
d13d7aba8c12
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roland
parents:
12868
diff
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|
2666 exact_klass = exact_signature_k; |
d13d7aba8c12
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roland
parents:
12868
diff
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|
2667 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2668 if (callee_signature_k != NULL && |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
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changeset
|
2669 callee_signature_k != signature_at_call_k) { |
e6ba215af802
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roland
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12969
diff
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|
2670 ciKlass* improved_klass = callee_signature_k->exact_klass(); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
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|
2671 if (improved_klass == NULL) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
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|
2672 improved_klass = comp->cha_exact_type(callee_signature_k); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2673 } |
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2674 if (exact_klass == NULL && improved_klass != NULL && exact_klass != improved_klass) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2675 exact_klass = exact_signature_k; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2676 } |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2677 } |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2678 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2679 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2680 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2681 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2682 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2683 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2684 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2685 if (mdp == LIR_OprFact::illegalOpr) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2686 mdp = new_register(T_METADATA); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2687 __ metadata2reg(md->constant_encoding(), mdp); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2688 if (md_base_offset != 0) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2689 LIR_Address* base_type_address = new LIR_Address(mdp, md_base_offset, T_ADDRESS); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2690 mdp = new_pointer_register(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2691 __ leal(LIR_OprFact::address(base_type_address), mdp); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2692 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2693 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2694 LIRItem value(obj, this); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2695 value.load_item(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2696 __ profile_type(new LIR_Address(mdp, md_offset, T_METADATA), |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2697 value.result(), exact_klass, profiled_k, new_pointer_register(), not_null, exact_signature_k != NULL); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2698 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2699 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2700 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2701 // profile parameters on entry to the root of the compilation |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2702 void LIRGenerator::profile_parameters(Base* x) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2703 if (compilation()->profile_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2704 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2705 ciMethodData* md = scope()->method()->method_data_or_null(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2706 assert(md != NULL, "Sanity"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2707 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2708 if (md->parameters_type_data() != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2709 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2710 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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parents:
12955
diff
changeset
|
2711 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2712 for (int java_index = 0, i = 0, j = 0; j < parameters_type_data->number_of_parameters(); i++) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2713 LIR_Opr src = args->at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2714 assert(!src->is_illegal(), "check"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2715 BasicType t = src->type(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2716 if (t == T_OBJECT || t == T_ARRAY) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2717 intptr_t profiled_k = parameters->type(j); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2718 Local* local = x->state()->local_at(java_index)->as_Local(); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2719 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(parameters_type_data, ParametersTypeData::type_offset(0)), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2720 in_bytes(ParametersTypeData::type_offset(j)) - in_bytes(ParametersTypeData::type_offset(0)), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2721 profiled_k, local, mdp, false, local->declared_type()->as_klass(), NULL); |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2722 // If the profile is known statically set it once for all and do not emit any code |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2723 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2724 md->set_parameter_type(j, exact); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2725 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2726 j++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2727 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2728 java_index += type2size[t]; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2729 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2730 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2731 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2732 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2733 |
0 | 2734 void LIRGenerator::do_Base(Base* x) { |
2735 __ std_entry(LIR_OprFact::illegalOpr); | |
2736 // Emit moves from physical registers / stack slots to virtual registers | |
2737 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); | |
2738 IRScope* irScope = compilation()->hir()->top_scope(); | |
2739 int java_index = 0; | |
2740 for (int i = 0; i < args->length(); i++) { | |
2741 LIR_Opr src = args->at(i); | |
2742 assert(!src->is_illegal(), "check"); | |
2743 BasicType t = src->type(); | |
2744 | |
2745 // Types which are smaller than int are passed as int, so | |
2746 // correct the type which passed. | |
2747 switch (t) { | |
2748 case T_BYTE: | |
2749 case T_BOOLEAN: | |
2750 case T_SHORT: | |
2751 case T_CHAR: | |
2752 t = T_INT; | |
2753 break; | |
2754 } | |
2755 | |
2756 LIR_Opr dest = new_register(t); | |
2757 __ move(src, dest); | |
2758 | |
2759 // Assign new location to Local instruction for this local | |
2760 Local* local = x->state()->local_at(java_index)->as_Local(); | |
2761 assert(local != NULL, "Locals for incoming arguments must have been created"); | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2762 #ifndef __SOFTFP__ |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2763 // The java calling convention passes double as long and float as int. |
0 | 2764 assert(as_ValueType(t)->tag() == local->type()->tag(), "check"); |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2765 #endif // __SOFTFP__ |
0 | 2766 local->set_operand(dest); |
2767 _instruction_for_operand.at_put_grow(dest->vreg_number(), local, NULL); | |
2768 java_index += type2size[t]; | |
2769 } | |
2770 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
579
diff
changeset
|
2771 if (compilation()->env()->dtrace_method_probes()) { |
0 | 2772 BasicTypeList signature; |
2002 | 2773 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
2774 signature.append(T_METADATA); // Method* |
0 | 2775 LIR_OprList* args = new LIR_OprList(); |
2776 args->append(getThreadPointer()); | |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2777 LIR_Opr meth = new_register(T_METADATA); |
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2778 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 2779 args->append(meth); |
2780 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), voidType, NULL); | |
2781 } | |
2782 | |
2783 if (method()->is_synchronized()) { | |
2784 LIR_Opr obj; | |
2785 if (method()->is_static()) { | |
2786 obj = new_register(T_OBJECT); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
819
diff
changeset
|
2787 __ oop2reg(method()->holder()->java_mirror()->constant_encoding(), obj); |
0 | 2788 } else { |
2789 Local* receiver = x->state()->local_at(0)->as_Local(); | |
2790 assert(receiver != NULL, "must already exist"); | |
2791 obj = receiver->operand(); | |
2792 } | |
2793 assert(obj->is_valid(), "must be valid"); | |
2794 | |
2795 if (method()->is_synchronized() && GenerateSynchronizationCode) { | |
2796 LIR_Opr lock = new_register(T_INT); | |
2797 __ load_stack_address_monitor(0, lock); | |
2798 | |
8860 | 2799 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, x->check_flag(Instruction::DeoptimizeOnException)); |
0 | 2800 CodeStub* slow_path = new MonitorEnterStub(obj, lock, info); |
2801 | |
2802 // receiver is guaranteed non-NULL so don't need CodeEmitInfo | |
2803 __ lock_object(syncTempOpr(), obj, lock, new_register(T_OBJECT), slow_path, NULL); | |
2804 } | |
2805 } | |
2806 | |
2807 // increment invocation counters if needed | |
1783 | 2808 if (!method()->is_accessor()) { // Accessors do not have MDOs, so no counting. |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2809 profile_parameters(x); |
8860 | 2810 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, false); |
1783 | 2811 increment_invocation_counter(info); |
2812 } | |
0 | 2813 |
2814 // all blocks with a successor must end with an unconditional jump | |
2815 // to the successor even if they are consecutive | |
2816 __ jump(x->default_sux()); | |
2817 } | |
2818 | |
2819 | |
2820 void LIRGenerator::do_OsrEntry(OsrEntry* x) { | |
2821 // construct our frame and model the production of incoming pointer | |
2822 // to the OSR buffer. | |
2823 __ osr_entry(LIR_Assembler::osrBufferPointer()); | |
2824 LIR_Opr result = rlock_result(x); | |
2825 __ move(LIR_Assembler::osrBufferPointer(), result); | |
2826 } | |
2827 | |
2828 | |
2829 void LIRGenerator::invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list) { | |
6616
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
parents:
6615
diff
changeset
|
2830 assert(args->length() == arg_list->length(), |
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
parents:
6615
diff
changeset
|
2831 err_msg_res("args=%d, arg_list=%d", args->length(), arg_list->length())); |
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
parents:
6615
diff
changeset
|
2832 for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) { |
0 | 2833 LIRItem* param = args->at(i); |
2834 LIR_Opr loc = arg_list->at(i); | |
2835 if (loc->is_register()) { | |
2836 param->load_item_force(loc); | |
2837 } else { | |
2838 LIR_Address* addr = loc->as_address_ptr(); | |
2839 param->load_for_store(addr->type()); | |
2002 | 2840 if (addr->type() == T_OBJECT) { |
2841 __ move_wide(param->result(), addr); | |
2842 } else | |
2843 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
2844 __ unaligned_move(param->result(), addr); | |
2845 } else { | |
2846 __ move(param->result(), addr); | |
2847 } | |
0 | 2848 } |
2849 } | |
2850 | |
2851 if (x->has_receiver()) { | |
2852 LIRItem* receiver = args->at(0); | |
2853 LIR_Opr loc = arg_list->at(0); | |
2854 if (loc->is_register()) { | |
2855 receiver->load_item_force(loc); | |
2856 } else { | |
2857 assert(loc->is_address(), "just checking"); | |
2858 receiver->load_for_store(T_OBJECT); | |
2002 | 2859 __ move_wide(receiver->result(), loc->as_address_ptr()); |
0 | 2860 } |
2861 } | |
2862 } | |
2863 | |
2864 | |
2865 // Visits all arguments, returns appropriate items without loading them | |
2866 LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) { | |
2867 LIRItemList* argument_items = new LIRItemList(); | |
2868 if (x->has_receiver()) { | |
2869 LIRItem* receiver = new LIRItem(x->receiver(), this); | |
2870 argument_items->append(receiver); | |
2871 } | |
2872 for (int i = 0; i < x->number_of_arguments(); i++) { | |
2873 LIRItem* param = new LIRItem(x->argument_at(i), this); | |
2874 argument_items->append(param); | |
2875 } | |
2876 return argument_items; | |
2877 } | |
2878 | |
2879 | |
2880 // The invoke with receiver has following phases: | |
2881 // a) traverse and load/lock receiver; | |
2882 // b) traverse all arguments -> item-array (invoke_visit_argument) | |
2883 // c) push receiver on stack | |
2884 // d) load each of the items and push on stack | |
2885 // e) unlock receiver | |
2886 // f) move receiver into receiver-register %o0 | |
2887 // g) lock result registers and emit call operation | |
2888 // | |
2889 // Before issuing a call, we must spill-save all values on stack | |
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2890 // that are in caller-save register. "spill-save" moves those registers |
0 | 2891 // either in a free callee-save register or spills them if no free |
2892 // callee save register is available. | |
2893 // | |
2894 // The problem is where to invoke spill-save. | |
2895 // - if invoked between e) and f), we may lock callee save | |
2896 // register in "spill-save" that destroys the receiver register | |
2897 // before f) is executed | |
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2898 // - if we rearrange f) to be earlier (by loading %o0) it |
0 | 2899 // may destroy a value on the stack that is currently in %o0 |
2900 // and is waiting to be spilled | |
2901 // - if we keep the receiver locked while doing spill-save, | |
2902 // we cannot spill it as it is spill-locked | |
2903 // | |
2904 void LIRGenerator::do_Invoke(Invoke* x) { | |
2905 CallingConvention* cc = frame_map()->java_calling_convention(x->signature(), true); | |
2906 | |
2907 LIR_OprList* arg_list = cc->args(); | |
2908 LIRItemList* args = invoke_visit_arguments(x); | |
2909 LIR_Opr receiver = LIR_OprFact::illegalOpr; | |
2910 | |
2911 // setup result register | |
2912 LIR_Opr result_register = LIR_OprFact::illegalOpr; | |
2913 if (x->type() != voidType) { | |
2914 result_register = result_register_for(x->type()); | |
2915 } | |
2916 | |
2917 CodeEmitInfo* info = state_for(x, x->state()); | |
2918 | |
2919 invoke_load_arguments(x, args, arg_list); | |
2920 | |
2921 if (x->has_receiver()) { | |
2922 args->at(0)->load_item_force(LIR_Assembler::receiverOpr()); | |
2923 receiver = args->at(0)->result(); | |
2924 } | |
2925 | |
2926 // emit invoke code | |
2927 bool optimized = x->target_is_loaded() && x->target_is_final(); | |
2928 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | |
2929 | |
1564 | 2930 // JSR 292 |
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2931 // Preserve the SP over MethodHandle call sites, if needed. |
1564 | 2932 ciMethod* target = x->target(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2933 bool is_method_handle_invoke = (// %%% FIXME: Are both of these relevant? |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2934 target->is_method_handle_intrinsic() || |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2935 target->is_compiled_lambda_form()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2936 if (is_method_handle_invoke) { |
1564 | 2937 info->set_is_method_handle_invoke(true); |
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2938 if(FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { |
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2939 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); |
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2940 } |
1564 | 2941 } |
2942 | |
0 | 2943 switch (x->code()) { |
2944 case Bytecodes::_invokestatic: | |
1564 | 2945 __ call_static(target, result_register, |
0 | 2946 SharedRuntime::get_resolve_static_call_stub(), |
2947 arg_list, info); | |
2948 break; | |
2949 case Bytecodes::_invokespecial: | |
2950 case Bytecodes::_invokevirtual: | |
2951 case Bytecodes::_invokeinterface: | |
2952 // for final target we still produce an inline cache, in order | |
2953 // to be able to call mixed mode | |
2954 if (x->code() == Bytecodes::_invokespecial || optimized) { | |
1564 | 2955 __ call_opt_virtual(target, receiver, result_register, |
0 | 2956 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
2957 arg_list, info); | |
2958 } else if (x->vtable_index() < 0) { | |
1564 | 2959 __ call_icvirtual(target, receiver, result_register, |
0 | 2960 SharedRuntime::get_resolve_virtual_call_stub(), |
2961 arg_list, info); | |
2962 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2963 int entry_offset = InstanceKlass::vtable_start_offset() + x->vtable_index() * vtableEntry::size(); |
0 | 2964 int vtable_offset = entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); |
1564 | 2965 __ call_virtual(target, receiver, result_register, vtable_offset, arg_list, info); |
0 | 2966 } |
2967 break; | |
1295 | 2968 case Bytecodes::_invokedynamic: { |
1564 | 2969 __ call_dynamic(target, receiver, result_register, |
6616
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
parents:
6615
diff
changeset
|
2970 SharedRuntime::get_resolve_static_call_stub(), |
1295 | 2971 arg_list, info); |
2972 break; | |
2973 } | |
0 | 2974 default: |
6145
e2fe93124108
7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
twisti
parents:
6143
diff
changeset
|
2975 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
0 | 2976 break; |
2977 } | |
2978 | |
1564 | 2979 // JSR 292 |
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2980 // Restore the SP after MethodHandle call sites, if needed. |
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2981 if (is_method_handle_invoke |
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2982 && FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { |
1564 | 2983 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
2984 } | |
2985 | |
0 | 2986 if (x->type()->is_float() || x->type()->is_double()) { |
2987 // Force rounding of results from non-strictfp when in strictfp | |
2988 // scope (or when we don't know the strictness of the callee, to | |
2989 // be safe.) | |
2990 if (method()->is_strict()) { | |
2991 if (!x->target_is_loaded() || !x->target_is_strictfp()) { | |
2992 result_register = round_item(result_register); | |
2993 } | |
2994 } | |
2995 } | |
2996 | |
2997 if (result_register->is_valid()) { | |
2998 LIR_Opr result = rlock_result(x); | |
2999 __ move(result_register, result); | |
3000 } | |
3001 } | |
3002 | |
3003 | |
3004 void LIRGenerator::do_FPIntrinsics(Intrinsic* x) { | |
3005 assert(x->number_of_arguments() == 1, "wrong type"); | |
3006 LIRItem value (x->argument_at(0), this); | |
3007 LIR_Opr reg = rlock_result(x); | |
3008 value.load_item(); | |
3009 LIR_Opr tmp = force_to_spill(value.result(), as_BasicType(x->type())); | |
3010 __ move(tmp, reg); | |
3011 } | |
3012 | |
3013 | |
3014 | |
3015 // Code for : x->x() {x->cond()} x->y() ? x->tval() : x->fval() | |
3016 void LIRGenerator::do_IfOp(IfOp* x) { | |
3017 #ifdef ASSERT | |
3018 { | |
3019 ValueTag xtag = x->x()->type()->tag(); | |
3020 ValueTag ttag = x->tval()->type()->tag(); | |
3021 assert(xtag == intTag || xtag == objectTag, "cannot handle others"); | |
3022 assert(ttag == addressTag || ttag == intTag || ttag == objectTag || ttag == longTag, "cannot handle others"); | |
3023 assert(ttag == x->fval()->type()->tag(), "cannot handle others"); | |
3024 } | |
3025 #endif | |
3026 | |
3027 LIRItem left(x->x(), this); | |
3028 LIRItem right(x->y(), this); | |
3029 left.load_item(); | |
3030 if (can_inline_as_constant(right.value())) { | |
3031 right.dont_load_item(); | |
3032 } else { | |
3033 right.load_item(); | |
3034 } | |
3035 | |
3036 LIRItem t_val(x->tval(), this); | |
3037 LIRItem f_val(x->fval(), this); | |
3038 t_val.dont_load_item(); | |
3039 f_val.dont_load_item(); | |
3040 LIR_Opr reg = rlock_result(x); | |
3041 | |
3042 __ cmp(lir_cond(x->cond()), left.result(), right.result()); | |
2089
037c727f35fb
7009231: C1: Incorrect CAS code for longs on SPARC 32bit
iveresov
parents:
2007
diff
changeset
|
3043 __ cmove(lir_cond(x->cond()), t_val.result(), f_val.result(), reg, as_BasicType(x->x()->type())); |
0 | 3044 } |
3045 | |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3046 void LIRGenerator::do_RuntimeCall(address routine, int expected_arguments, Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3047 assert(x->number_of_arguments() == expected_arguments, "wrong type"); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3048 LIR_Opr reg = result_register_for(x->type()); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3049 __ call_runtime_leaf(routine, getThreadTemp(), |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3050 reg, new LIR_OprList()); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3051 LIR_Opr result = rlock_result(x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3052 __ move(reg, result); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3053 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3054 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3055 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3056 void LIRGenerator::do_ThreadIDIntrinsic(Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3057 LIR_Opr thread = getThreadPointer(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3058 LIR_Opr osthread = new_pointer_register(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3059 __ move(new LIR_Address(thread, in_bytes(JavaThread::osthread_offset()), osthread->type()), osthread); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3060 size_t thread_id_size = OSThread::thread_id_size(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3061 if (thread_id_size == (size_t) BytesPerLong) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3062 LIR_Opr id = new_register(T_LONG); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3063 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_LONG), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3064 __ convert(Bytecodes::_l2i, id, rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3065 } else if (thread_id_size == (size_t) BytesPerInt) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3066 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_INT), rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3067 } else { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3068 ShouldNotReachHere(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3069 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3070 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3071 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3072 void LIRGenerator::do_ClassIDIntrinsic(Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3073 CodeEmitInfo* info = state_for(x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3074 CodeEmitInfo* info2 = new CodeEmitInfo(info); // Clone for the second null check |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3075 BasicType klass_pointer_type = NOT_LP64(T_INT) LP64_ONLY(T_LONG); |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3076 assert(info != NULL, "must have info"); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3077 LIRItem arg(x->argument_at(1), this); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3078 arg.load_item(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3079 LIR_Opr klass = new_pointer_register(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3080 __ move(new LIR_Address(arg.result(), java_lang_Class::klass_offset_in_bytes(), klass_pointer_type), klass, info); |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3081 LIR_Opr id = new_register(T_LONG); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3082 ByteSize offset = TRACE_ID_OFFSET; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3083 LIR_Address* trace_id_addr = new LIR_Address(klass, in_bytes(offset), T_LONG); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3084 __ move(trace_id_addr, id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3085 __ logical_or(id, LIR_OprFact::longConst(0x01l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3086 __ store(id, trace_id_addr); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3087 __ logical_and(id, LIR_OprFact::longConst(~0x3l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3088 __ move(id, rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3089 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3090 #endif |
0 | 3091 |
3092 void LIRGenerator::do_Intrinsic(Intrinsic* x) { | |
3093 switch (x->id()) { | |
3094 case vmIntrinsics::_intBitsToFloat : | |
3095 case vmIntrinsics::_doubleToRawLongBits : | |
3096 case vmIntrinsics::_longBitsToDouble : | |
3097 case vmIntrinsics::_floatToRawIntBits : { | |
3098 do_FPIntrinsics(x); | |
3099 break; | |
3100 } | |
3101 | |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3102 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3103 case vmIntrinsics::_threadID: do_ThreadIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3104 case vmIntrinsics::_classID: do_ClassIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3105 case vmIntrinsics::_counterTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3106 do_RuntimeCall(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), 0, x); |
0 | 3107 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3108 #endif |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3109 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3110 case vmIntrinsics::_currentTimeMillis: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3111 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeMillis), 0, x); |
0 | 3112 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3113 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3114 case vmIntrinsics::_nanoTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3115 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeNanos), 0, x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3116 break; |
0 | 3117 |
3118 case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break; | |
6135 | 3119 case vmIntrinsics::_isInstance: do_isInstance(x); break; |
0 | 3120 case vmIntrinsics::_getClass: do_getClass(x); break; |
3121 case vmIntrinsics::_currentThread: do_currentThread(x); break; | |
3122 | |
3123 case vmIntrinsics::_dlog: // fall through | |
3124 case vmIntrinsics::_dlog10: // fall through | |
3125 case vmIntrinsics::_dabs: // fall through | |
3126 case vmIntrinsics::_dsqrt: // fall through | |
3127 case vmIntrinsics::_dtan: // fall through | |
3128 case vmIntrinsics::_dsin : // fall through | |
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3129 case vmIntrinsics::_dcos : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3130 case vmIntrinsics::_dexp : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3131 case vmIntrinsics::_dpow : do_MathIntrinsic(x); break; |
0 | 3132 case vmIntrinsics::_arraycopy: do_ArrayCopy(x); break; |
3133 | |
3134 // java.nio.Buffer.checkIndex | |
3135 case vmIntrinsics::_checkIndex: do_NIOCheckIndex(x); break; | |
3136 | |
3137 case vmIntrinsics::_compareAndSwapObject: | |
3138 do_CompareAndSwap(x, objectType); | |
3139 break; | |
3140 case vmIntrinsics::_compareAndSwapInt: | |
3141 do_CompareAndSwap(x, intType); | |
3142 break; | |
3143 case vmIntrinsics::_compareAndSwapLong: | |
3144 do_CompareAndSwap(x, longType); | |
3145 break; | |
3146 | |
7425 | 3147 case vmIntrinsics::_loadFence : |
3148 if (os::is_MP()) __ membar_acquire(); | |
3149 break; | |
3150 case vmIntrinsics::_storeFence: | |
3151 if (os::is_MP()) __ membar_release(); | |
3152 break; | |
3153 case vmIntrinsics::_fullFence : | |
3154 if (os::is_MP()) __ membar(); | |
3155 break; | |
3156 | |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3157 case vmIntrinsics::_Reference_get: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3158 do_Reference_get(x); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3159 break; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3160 |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3161 case vmIntrinsics::_updateCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3162 case vmIntrinsics::_updateBytesCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3163 case vmIntrinsics::_updateByteBufferCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3164 do_update_CRC32(x); |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3165 break; |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3166 |
0 | 3167 default: ShouldNotReachHere(); break; |
3168 } | |
3169 } | |
3170 | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3171 void LIRGenerator::profile_arguments(ProfileCall* x) { |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3172 if (compilation()->profile_arguments()) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3173 int bci = x->bci_of_invoke(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3174 ciMethodData* md = x->method()->method_data_or_null(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3175 ciProfileData* data = md->bci_to_data(bci); |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3176 if ((data->is_CallTypeData() && data->as_CallTypeData()->has_arguments()) || |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3177 (data->is_VirtualCallTypeData() && data->as_VirtualCallTypeData()->has_arguments())) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3178 ByteSize extra = data->is_CallTypeData() ? CallTypeData::args_data_offset() : VirtualCallTypeData::args_data_offset(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3179 int base_offset = md->byte_offset_of_slot(data, extra); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3180 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3181 ciTypeStackSlotEntries* args = data->is_CallTypeData() ? ((ciCallTypeData*)data)->args() : ((ciVirtualCallTypeData*)data)->args(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3182 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3183 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3184 int start = 0; |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3185 int stop = data->is_CallTypeData() ? ((ciCallTypeData*)data)->number_of_arguments() : ((ciVirtualCallTypeData*)data)->number_of_arguments(); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3186 if (x->inlined() && x->callee()->is_static() && Bytecodes::has_receiver(bc)) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3187 // first argument is not profiled at call (method handle invoke) |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3188 assert(x->method()->raw_code_at_bci(bci) == Bytecodes::_invokehandle, "invokehandle expected"); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3189 start = 1; |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3190 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3191 ciSignature* callee_signature = x->callee()->signature(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3192 // method handle call to virtual method |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3193 bool has_receiver = x->inlined() && !x->callee()->is_static() && !Bytecodes::has_receiver(bc); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3194 ciSignatureStream callee_signature_stream(callee_signature, has_receiver ? x->callee()->holder() : NULL); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3195 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3196 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3197 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3198 x->method()->get_method_at_bci(bci, ignored_will_link, &signature_at_call); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3199 ciSignatureStream signature_at_call_stream(signature_at_call); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3200 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3201 // if called through method handle invoke, some arguments may have been popped |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3202 for (int i = 0; i < stop && i+start < x->nb_profiled_args(); i++) { |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3203 int off = in_bytes(TypeEntriesAtCall::argument_type_offset(i)) - in_bytes(TypeEntriesAtCall::args_data_offset()); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3204 ciKlass* exact = profile_type(md, base_offset, off, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3205 args->type(i), x->profiled_arg_at(i+start), mdp, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3206 !x->arg_needs_null_check(i+start), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3207 signature_at_call_stream.next_klass(), callee_signature_stream.next_klass()); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3208 if (exact != NULL) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3209 md->set_argument_type(bci, i, exact); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3210 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3211 } |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3212 } else { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3213 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3214 Bytecodes::Code code = x->method()->raw_code_at_bci(x->bci_of_invoke()); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3215 int n = x->nb_profiled_args(); |
17900
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3216 assert(MethodData::profile_parameters() && (MethodData::profile_arguments_jsr292_only() || |
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3217 (x->inlined() && ((code == Bytecodes::_invokedynamic && n <= 1) || (code == Bytecodes::_invokehandle && n <= 2)))), |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3218 "only at JSR292 bytecodes"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3219 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3220 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3221 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3222 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3223 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3224 // profile parameters on entry to an inlined method |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3225 void LIRGenerator::profile_parameters_at_call(ProfileCall* x) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3226 if (compilation()->profile_parameters() && x->inlined()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3227 ciMethodData* md = x->callee()->method_data_or_null(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3228 if (md != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3229 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3230 if (parameters_type_data != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3231 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3232 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3233 bool has_receiver = !x->callee()->is_static(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3234 ciSignature* sig = x->callee()->signature(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3235 ciSignatureStream sig_stream(sig, has_receiver ? x->callee()->holder() : NULL); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3236 int i = 0; // to iterate on the Instructions |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3237 Value arg = x->recv(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3238 bool not_null = false; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3239 int bci = x->bci_of_invoke(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3240 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3241 // The first parameter is the receiver so that's what we start |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3242 // with if it exists. One exception is method handle call to |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3243 // virtual method: the receiver is in the args list |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3244 if (arg == NULL || !Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3245 i = 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3246 arg = x->profiled_arg_at(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3247 not_null = !x->arg_needs_null_check(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3248 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3249 int k = 0; // to iterate on the profile data |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3250 for (;;) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3251 intptr_t profiled_k = parameters->type(k); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3252 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(parameters_type_data, ParametersTypeData::type_offset(0)), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3253 in_bytes(ParametersTypeData::type_offset(k)) - in_bytes(ParametersTypeData::type_offset(0)), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3254 profiled_k, arg, mdp, not_null, sig_stream.next_klass(), NULL); |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3255 // If the profile is known statically set it once for all and do not emit any code |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3256 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3257 md->set_parameter_type(k, exact); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3258 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3259 k++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3260 if (k >= parameters_type_data->number_of_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3261 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3262 int extra = 0; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3263 if (MethodData::profile_arguments() && TypeProfileParmsLimit != -1 && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3264 x->nb_profiled_args() >= TypeProfileParmsLimit && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3265 x->recv() != NULL && Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3266 extra += 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3267 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3268 assert(i == x->nb_profiled_args() - extra || (TypeProfileParmsLimit != -1 && TypeProfileArgsLimit > TypeProfileParmsLimit), "unused parameters?"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3269 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3270 break; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3271 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3272 arg = x->profiled_arg_at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3273 not_null = !x->arg_needs_null_check(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3274 i++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3275 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3276 } |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3277 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3278 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3279 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3280 |
0 | 3281 void LIRGenerator::do_ProfileCall(ProfileCall* x) { |
3282 // Need recv in a temporary register so it interferes with the other temporaries | |
3283 LIR_Opr recv = LIR_OprFact::illegalOpr; | |
3284 LIR_Opr mdo = new_register(T_OBJECT); | |
1783 | 3285 // tmp is used to hold the counters on SPARC |
3286 LIR_Opr tmp = new_pointer_register(); | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3287 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3288 if (x->nb_profiled_args() > 0) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3289 profile_arguments(x); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3290 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3291 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3292 // profile parameters on inlined method entry including receiver |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3293 if (x->recv() != NULL || x->nb_profiled_args() > 0) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3294 profile_parameters_at_call(x); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3295 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3296 |
0 | 3297 if (x->recv() != NULL) { |
3298 LIRItem value(x->recv(), this); | |
3299 value.load_item(); | |
3300 recv = new_register(T_OBJECT); | |
3301 __ move(value.result(), recv); | |
3302 } | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
3303 __ profile_call(x->method(), x->bci_of_invoke(), x->callee(), mdo, recv, tmp, x->known_holder()); |
0 | 3304 } |
3305 | |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3306 void LIRGenerator::do_ProfileReturnType(ProfileReturnType* x) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3307 int bci = x->bci_of_invoke(); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3308 ciMethodData* md = x->method()->method_data_or_null(); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3309 ciProfileData* data = md->bci_to_data(bci); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3310 assert(data->is_CallTypeData() || data->is_VirtualCallTypeData(), "wrong profile data type"); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3311 ciReturnTypeEntry* ret = data->is_CallTypeData() ? ((ciCallTypeData*)data)->ret() : ((ciVirtualCallTypeData*)data)->ret(); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3312 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3313 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3314 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3315 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3316 x->method()->get_method_at_bci(bci, ignored_will_link, &signature_at_call); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3317 |
17628 | 3318 // The offset within the MDO of the entry to update may be too large |
3319 // to be used in load/store instructions on some platforms. So have | |
3320 // profile_type() compute the address of the profile in a register. | |
3321 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(data, ret->type_offset()), 0, | |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3322 ret->type(), x->ret(), mdp, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3323 !x->needs_null_check(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3324 signature_at_call->return_type()->as_klass(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3325 x->callee()->signature()->return_type()->as_klass()); |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3326 if (exact != NULL) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3327 md->set_return_type(bci, exact); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3328 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3329 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3330 |
1783 | 3331 void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) { |
3332 // We can safely ignore accessors here, since c2 will inline them anyway, | |
3333 // accessors are also always mature. | |
3334 if (!x->inlinee()->is_accessor()) { | |
3335 CodeEmitInfo* info = state_for(x, x->state(), true); | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3336 // Notify the runtime very infrequently only to take care of counter overflows |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3337 increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true); |
1783 | 3338 } |
3339 } | |
3340 | |
3341 void LIRGenerator::increment_event_counter(CodeEmitInfo* info, int bci, bool backedge) { | |
3342 int freq_log; | |
3343 int level = compilation()->env()->comp_level(); | |
3344 if (level == CompLevel_limited_profile) { | |
3345 freq_log = (backedge ? Tier2BackedgeNotifyFreqLog : Tier2InvokeNotifyFreqLog); | |
3346 } else if (level == CompLevel_full_profile) { | |
3347 freq_log = (backedge ? Tier3BackedgeNotifyFreqLog : Tier3InvokeNotifyFreqLog); | |
3348 } else { | |
3349 ShouldNotReachHere(); | |
3350 } | |
3351 // Increment the appropriate invocation/backedge counter and notify the runtime. | |
3352 increment_event_counter_impl(info, info->scope()->method(), (1 << freq_log) - 1, bci, backedge, true); | |
0 | 3353 } |
3354 | |
1783 | 3355 void LIRGenerator::increment_event_counter_impl(CodeEmitInfo* info, |
3356 ciMethod *method, int frequency, | |
3357 int bci, bool backedge, bool notify) { | |
3358 assert(frequency == 0 || is_power_of_2(frequency + 1), "Frequency must be x^2 - 1 or 0"); | |
3359 int level = _compilation->env()->comp_level(); | |
3360 assert(level > CompLevel_simple, "Shouldn't be here"); | |
3361 | |
3362 int offset = -1; | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3363 LIR_Opr counter_holder; |
1783 | 3364 if (level == CompLevel_limited_profile) { |
12868
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3365 MethodCounters* counters_adr = method->ensure_method_counters(); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3366 if (counters_adr == NULL) { |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3367 bailout("method counters allocation failed"); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3368 return; |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3369 } |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3370 counter_holder = new_pointer_register(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3371 __ move(LIR_OprFact::intptrConst(counters_adr), counter_holder); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3372 offset = in_bytes(backedge ? MethodCounters::backedge_counter_offset() : |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3373 MethodCounters::invocation_counter_offset()); |
1783 | 3374 } else if (level == CompLevel_full_profile) { |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3375 counter_holder = new_register(T_METADATA); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3376 offset = in_bytes(backedge ? MethodData::backedge_counter_offset() : |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3377 MethodData::invocation_counter_offset()); |
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3378 ciMethodData* md = method->method_data_or_null(); |
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3379 assert(md != NULL, "Sanity"); |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
3380 __ metadata2reg(md->constant_encoding(), counter_holder); |
1783 | 3381 } else { |
3382 ShouldNotReachHere(); | |
3383 } | |
3384 LIR_Address* counter = new LIR_Address(counter_holder, offset, T_INT); | |
3385 LIR_Opr result = new_register(T_INT); | |
3386 __ load(counter, result); | |
3387 __ add(result, LIR_OprFact::intConst(InvocationCounter::count_increment), result); | |
3388 __ store(result, counter); | |
3389 if (notify) { | |
3390 LIR_Opr mask = load_immediate(frequency << InvocationCounter::count_shift, T_INT); | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3391 LIR_Opr meth = new_register(T_METADATA); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3392 __ metadata2reg(method->constant_encoding(), meth); |
1783 | 3393 __ logical_and(result, mask, result); |
3394 __ cmp(lir_cond_equal, result, LIR_OprFact::intConst(0)); | |
3395 // The bci for info can point to cmp for if's we want the if bci | |
3396 CodeStub* overflow = new CounterOverflowStub(info, bci, meth); | |
3397 __ branch(lir_cond_equal, T_INT, overflow); | |
3398 __ branch_destination(overflow->continuation()); | |
3399 } | |
3400 } | |
0 | 3401 |
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3402 void LIRGenerator::do_RuntimeCall(RuntimeCall* x) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3403 LIR_OprList* args = new LIR_OprList(x->number_of_arguments()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3404 BasicTypeList* signature = new BasicTypeList(x->number_of_arguments()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3405 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3406 if (x->pass_thread()) { |
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
3407 signature->append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3408 args->append(getThreadPointer()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3409 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3410 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3411 for (int i = 0; i < x->number_of_arguments(); i++) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3412 Value a = x->argument_at(i); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3413 LIRItem* item = new LIRItem(a, this); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3414 item->load_item(); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3415 args->append(item->result()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3416 signature->append(as_BasicType(a->type())); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3417 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3418 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3419 LIR_Opr result = call_runtime(signature, args, x->entry(), x->type(), NULL); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3420 if (x->type() == voidType) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3421 set_no_result(x); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3422 } else { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3423 __ move(result, rlock_result(x)); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3424 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3425 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3426 |
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3427 #ifdef ASSERT |
8860 | 3428 void LIRGenerator::do_Assert(Assert *x) { |
3429 ValueTag tag = x->x()->type()->tag(); | |
3430 If::Condition cond = x->cond(); | |
3431 | |
3432 LIRItem xitem(x->x(), this); | |
3433 LIRItem yitem(x->y(), this); | |
3434 LIRItem* xin = &xitem; | |
3435 LIRItem* yin = &yitem; | |
3436 | |
3437 assert(tag == intTag, "Only integer assertions are valid!"); | |
3438 | |
3439 xin->load_item(); | |
3440 yin->dont_load_item(); | |
3441 | |
3442 set_no_result(x); | |
3443 | |
3444 LIR_Opr left = xin->result(); | |
3445 LIR_Opr right = yin->result(); | |
3446 | |
3447 __ lir_assert(lir_cond(x->cond()), left, right, x->message(), true); | |
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3448 } |
8860 | 3449 #endif |
3450 | |
3451 void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) { | |
3452 | |
3453 | |
3454 Instruction *a = x->x(); | |
3455 Instruction *b = x->y(); | |
3456 if (!a || StressRangeCheckElimination) { | |
3457 assert(!b || StressRangeCheckElimination, "B must also be null"); | |
3458 | |
3459 CodeEmitInfo *info = state_for(x, x->state()); | |
3460 CodeStub* stub = new PredicateFailedStub(info); | |
3461 | |
3462 __ jump(stub); | |
3463 } else if (a->type()->as_IntConstant() && b->type()->as_IntConstant()) { | |
3464 int a_int = a->type()->as_IntConstant()->value(); | |
3465 int b_int = b->type()->as_IntConstant()->value(); | |
3466 | |
3467 bool ok = false; | |
3468 | |
3469 switch(x->cond()) { | |
3470 case Instruction::eql: ok = (a_int == b_int); break; | |
3471 case Instruction::neq: ok = (a_int != b_int); break; | |
3472 case Instruction::lss: ok = (a_int < b_int); break; | |
3473 case Instruction::leq: ok = (a_int <= b_int); break; | |
3474 case Instruction::gtr: ok = (a_int > b_int); break; | |
3475 case Instruction::geq: ok = (a_int >= b_int); break; | |
3476 case Instruction::aeq: ok = ((unsigned int)a_int >= (unsigned int)b_int); break; | |
3477 case Instruction::beq: ok = ((unsigned int)a_int <= (unsigned int)b_int); break; | |
3478 default: ShouldNotReachHere(); | |
3479 } | |
3480 | |
3481 if (ok) { | |
3482 | |
3483 CodeEmitInfo *info = state_for(x, x->state()); | |
3484 CodeStub* stub = new PredicateFailedStub(info); | |
3485 | |
3486 __ jump(stub); | |
3487 } | |
3488 } else { | |
3489 | |
3490 ValueTag tag = x->x()->type()->tag(); | |
3491 If::Condition cond = x->cond(); | |
3492 LIRItem xitem(x->x(), this); | |
3493 LIRItem yitem(x->y(), this); | |
3494 LIRItem* xin = &xitem; | |
3495 LIRItem* yin = &yitem; | |
3496 | |
3497 assert(tag == intTag, "Only integer deoptimizations are valid!"); | |
3498 | |
3499 xin->load_item(); | |
3500 yin->dont_load_item(); | |
3501 set_no_result(x); | |
3502 | |
3503 LIR_Opr left = xin->result(); | |
3504 LIR_Opr right = yin->result(); | |
3505 | |
3506 CodeEmitInfo *info = state_for(x, x->state()); | |
3507 CodeStub* stub = new PredicateFailedStub(info); | |
3508 | |
3509 __ cmp(lir_cond(cond), left, right); | |
3510 __ branch(lir_cond(cond), right->type(), stub); | |
3511 } | |
3512 } | |
3513 | |
3514 | |
0 | 3515 LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) { |
3516 LIRItemList args(1); | |
3517 LIRItem value(arg1, this); | |
3518 args.append(&value); | |
3519 BasicTypeList signature; | |
3520 signature.append(as_BasicType(arg1->type())); | |
3521 | |
3522 return call_runtime(&signature, &args, entry, result_type, info); | |
3523 } | |
3524 | |
3525 | |
3526 LIR_Opr LIRGenerator::call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3527 LIRItemList args(2); | |
3528 LIRItem value1(arg1, this); | |
3529 LIRItem value2(arg2, this); | |
3530 args.append(&value1); | |
3531 args.append(&value2); | |
3532 BasicTypeList signature; | |
3533 signature.append(as_BasicType(arg1->type())); | |
3534 signature.append(as_BasicType(arg2->type())); | |
3535 | |
3536 return call_runtime(&signature, &args, entry, result_type, info); | |
3537 } | |
3538 | |
3539 | |
3540 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIR_OprList* args, | |
3541 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3542 // get a result register | |
3543 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3544 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3545 if (result_type->tag() != voidTag) { | |
3546 result = new_register(result_type); | |
3547 phys_reg = result_register_for(result_type); | |
3548 } | |
3549 | |
3550 // move the arguments into the correct location | |
3551 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3552 assert(cc->length() == args->length(), "argument mismatch"); | |
3553 for (int i = 0; i < args->length(); i++) { | |
3554 LIR_Opr arg = args->at(i); | |
3555 LIR_Opr loc = cc->at(i); | |
3556 if (loc->is_register()) { | |
3557 __ move(arg, loc); | |
3558 } else { | |
3559 LIR_Address* addr = loc->as_address_ptr(); | |
3560 // if (!can_store_as_constant(arg)) { | |
3561 // LIR_Opr tmp = new_register(arg->type()); | |
3562 // __ move(arg, tmp); | |
3563 // arg = tmp; | |
3564 // } | |
3565 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3566 __ unaligned_move(arg, addr); | |
3567 } else { | |
3568 __ move(arg, addr); | |
3569 } | |
3570 } | |
3571 } | |
3572 | |
3573 if (info) { | |
3574 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3575 } else { | |
3576 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3577 } | |
3578 if (result->is_valid()) { | |
3579 __ move(phys_reg, result); | |
3580 } | |
3581 return result; | |
3582 } | |
3583 | |
3584 | |
3585 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIRItemList* args, | |
3586 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3587 // get a result register | |
3588 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3589 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3590 if (result_type->tag() != voidTag) { | |
3591 result = new_register(result_type); | |
3592 phys_reg = result_register_for(result_type); | |
3593 } | |
3594 | |
3595 // move the arguments into the correct location | |
3596 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3597 | |
3598 assert(cc->length() == args->length(), "argument mismatch"); | |
3599 for (int i = 0; i < args->length(); i++) { | |
3600 LIRItem* arg = args->at(i); | |
3601 LIR_Opr loc = cc->at(i); | |
3602 if (loc->is_register()) { | |
3603 arg->load_item_force(loc); | |
3604 } else { | |
3605 LIR_Address* addr = loc->as_address_ptr(); | |
3606 arg->load_for_store(addr->type()); | |
3607 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3608 __ unaligned_move(arg->result(), addr); | |
3609 } else { | |
3610 __ move(arg->result(), addr); | |
3611 } | |
3612 } | |
3613 } | |
3614 | |
3615 if (info) { | |
3616 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3617 } else { | |
3618 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3619 } | |
3620 if (result->is_valid()) { | |
3621 __ move(phys_reg, result); | |
3622 } | |
3623 return result; | |
3624 } | |
4966
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3625 |
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3626 void LIRGenerator::do_MemBar(MemBar* x) { |
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3627 if (os::is_MP()) { |
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3628 LIR_Code code = x->code(); |
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3629 switch(code) { |
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3630 case lir_membar_acquire : __ membar_acquire(); break; |
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3631 case lir_membar_release : __ membar_release(); break; |
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3632 case lir_membar : __ membar(); break; |
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3633 case lir_membar_loadload : __ membar_loadload(); break; |
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3634 case lir_membar_storestore: __ membar_storestore(); break; |
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3635 case lir_membar_loadstore : __ membar_loadstore(); break; |
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3636 case lir_membar_storeload : __ membar_storeload(); break; |
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3637 default : ShouldNotReachHere(); break; |
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3638 } |
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3639 } |
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3640 } |