Mercurial > hg > truffle
annotate src/share/vm/c1/c1_LIRGenerator.cpp @ 21046:d35d2ac04970
weakened check used by an assertion in the FrameStateAssignmentPhase
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 20 Apr 2015 19:07:49 +0200 |
parents | 7848fc12602b |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "c1/c1_Compilation.hpp" | |
27 #include "c1/c1_FrameMap.hpp" | |
28 #include "c1/c1_Instruction.hpp" | |
29 #include "c1/c1_LIRAssembler.hpp" | |
30 #include "c1/c1_LIRGenerator.hpp" | |
31 #include "c1/c1_ValueStack.hpp" | |
32 #include "ci/ciArrayKlass.hpp" | |
33 #include "ci/ciInstance.hpp" | |
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34 #include "ci/ciObjArray.hpp" |
1972 | 35 #include "runtime/sharedRuntime.hpp" |
36 #include "runtime/stubRoutines.hpp" | |
37 #include "utilities/bitMap.inline.hpp" | |
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38 #include "utilities/macros.hpp" |
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39 #if INCLUDE_ALL_GCS |
1972 | 40 #include "gc_implementation/g1/heapRegion.hpp" |
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41 #endif // INCLUDE_ALL_GCS |
0 | 42 |
43 #ifdef ASSERT | |
44 #define __ gen()->lir(__FILE__, __LINE__)-> | |
45 #else | |
46 #define __ gen()->lir()-> | |
47 #endif | |
48 | |
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49 // TODO: ARM - Use some recognizable constant which still fits architectural constraints |
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50 #ifdef ARM |
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51 #define PATCHED_ADDR (204) |
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52 #else |
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53 #define PATCHED_ADDR (max_jint) |
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54 #endif |
0 | 55 |
56 void PhiResolverState::reset(int max_vregs) { | |
57 // Initialize array sizes | |
58 _virtual_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
59 _virtual_operands.trunc_to(0); | |
60 _other_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
61 _other_operands.trunc_to(0); | |
62 _vreg_table.at_put_grow(max_vregs - 1, NULL, NULL); | |
63 _vreg_table.trunc_to(0); | |
64 } | |
65 | |
66 | |
67 | |
68 //-------------------------------------------------------------- | |
69 // PhiResolver | |
70 | |
71 // Resolves cycles: | |
72 // | |
73 // r1 := r2 becomes temp := r1 | |
74 // r2 := r1 r1 := r2 | |
75 // r2 := temp | |
76 // and orders moves: | |
77 // | |
78 // r2 := r3 becomes r1 := r2 | |
79 // r1 := r2 r2 := r3 | |
80 | |
81 PhiResolver::PhiResolver(LIRGenerator* gen, int max_vregs) | |
82 : _gen(gen) | |
83 , _state(gen->resolver_state()) | |
84 , _temp(LIR_OprFact::illegalOpr) | |
85 { | |
86 // reinitialize the shared state arrays | |
87 _state.reset(max_vregs); | |
88 } | |
89 | |
90 | |
91 void PhiResolver::emit_move(LIR_Opr src, LIR_Opr dest) { | |
92 assert(src->is_valid(), ""); | |
93 assert(dest->is_valid(), ""); | |
94 __ move(src, dest); | |
95 } | |
96 | |
97 | |
98 void PhiResolver::move_temp_to(LIR_Opr dest) { | |
99 assert(_temp->is_valid(), ""); | |
100 emit_move(_temp, dest); | |
101 NOT_PRODUCT(_temp = LIR_OprFact::illegalOpr); | |
102 } | |
103 | |
104 | |
105 void PhiResolver::move_to_temp(LIR_Opr src) { | |
106 assert(_temp->is_illegal(), ""); | |
107 _temp = _gen->new_register(src->type()); | |
108 emit_move(src, _temp); | |
109 } | |
110 | |
111 | |
112 // Traverse assignment graph in depth first order and generate moves in post order | |
113 // ie. two assignments: b := c, a := b start with node c: | |
114 // Call graph: move(NULL, c) -> move(c, b) -> move(b, a) | |
115 // Generates moves in this order: move b to a and move c to b | |
116 // ie. cycle a := b, b := a start with node a | |
117 // Call graph: move(NULL, a) -> move(a, b) -> move(b, a) | |
118 // Generates moves in this order: move b to temp, move a to b, move temp to a | |
119 void PhiResolver::move(ResolveNode* src, ResolveNode* dest) { | |
120 if (!dest->visited()) { | |
121 dest->set_visited(); | |
122 for (int i = dest->no_of_destinations()-1; i >= 0; i --) { | |
123 move(dest, dest->destination_at(i)); | |
124 } | |
125 } else if (!dest->start_node()) { | |
126 // cylce in graph detected | |
127 assert(_loop == NULL, "only one loop valid!"); | |
128 _loop = dest; | |
129 move_to_temp(src->operand()); | |
130 return; | |
131 } // else dest is a start node | |
132 | |
133 if (!dest->assigned()) { | |
134 if (_loop == dest) { | |
135 move_temp_to(dest->operand()); | |
136 dest->set_assigned(); | |
137 } else if (src != NULL) { | |
138 emit_move(src->operand(), dest->operand()); | |
139 dest->set_assigned(); | |
140 } | |
141 } | |
142 } | |
143 | |
144 | |
145 PhiResolver::~PhiResolver() { | |
146 int i; | |
147 // resolve any cycles in moves from and to virtual registers | |
148 for (i = virtual_operands().length() - 1; i >= 0; i --) { | |
149 ResolveNode* node = virtual_operands()[i]; | |
150 if (!node->visited()) { | |
151 _loop = NULL; | |
152 move(NULL, node); | |
153 node->set_start_node(); | |
154 assert(_temp->is_illegal(), "move_temp_to() call missing"); | |
155 } | |
156 } | |
157 | |
158 // generate move for move from non virtual register to abitrary destination | |
159 for (i = other_operands().length() - 1; i >= 0; i --) { | |
160 ResolveNode* node = other_operands()[i]; | |
161 for (int j = node->no_of_destinations() - 1; j >= 0; j --) { | |
162 emit_move(node->operand(), node->destination_at(j)->operand()); | |
163 } | |
164 } | |
165 } | |
166 | |
167 | |
168 ResolveNode* PhiResolver::create_node(LIR_Opr opr, bool source) { | |
169 ResolveNode* node; | |
170 if (opr->is_virtual()) { | |
171 int vreg_num = opr->vreg_number(); | |
172 node = vreg_table().at_grow(vreg_num, NULL); | |
173 assert(node == NULL || node->operand() == opr, ""); | |
174 if (node == NULL) { | |
175 node = new ResolveNode(opr); | |
176 vreg_table()[vreg_num] = node; | |
177 } | |
178 // Make sure that all virtual operands show up in the list when | |
179 // they are used as the source of a move. | |
180 if (source && !virtual_operands().contains(node)) { | |
181 virtual_operands().append(node); | |
182 } | |
183 } else { | |
184 assert(source, ""); | |
185 node = new ResolveNode(opr); | |
186 other_operands().append(node); | |
187 } | |
188 return node; | |
189 } | |
190 | |
191 | |
192 void PhiResolver::move(LIR_Opr src, LIR_Opr dest) { | |
193 assert(dest->is_virtual(), ""); | |
194 // tty->print("move "); src->print(); tty->print(" to "); dest->print(); tty->cr(); | |
195 assert(src->is_valid(), ""); | |
196 assert(dest->is_valid(), ""); | |
197 ResolveNode* source = source_node(src); | |
198 source->append(destination_node(dest)); | |
199 } | |
200 | |
201 | |
202 //-------------------------------------------------------------- | |
203 // LIRItem | |
204 | |
205 void LIRItem::set_result(LIR_Opr opr) { | |
206 assert(value()->operand()->is_illegal() || value()->operand()->is_constant(), "operand should never change"); | |
207 value()->set_operand(opr); | |
208 | |
209 if (opr->is_virtual()) { | |
210 _gen->_instruction_for_operand.at_put_grow(opr->vreg_number(), value(), NULL); | |
211 } | |
212 | |
213 _result = opr; | |
214 } | |
215 | |
216 void LIRItem::load_item() { | |
217 if (result()->is_illegal()) { | |
218 // update the items result | |
219 _result = value()->operand(); | |
220 } | |
221 if (!result()->is_register()) { | |
222 LIR_Opr reg = _gen->new_register(value()->type()); | |
223 __ move(result(), reg); | |
224 if (result()->is_constant()) { | |
225 _result = reg; | |
226 } else { | |
227 set_result(reg); | |
228 } | |
229 } | |
230 } | |
231 | |
232 | |
233 void LIRItem::load_for_store(BasicType type) { | |
234 if (_gen->can_store_as_constant(value(), type)) { | |
235 _result = value()->operand(); | |
236 if (!_result->is_constant()) { | |
237 _result = LIR_OprFact::value_type(value()->type()); | |
238 } | |
239 } else if (type == T_BYTE || type == T_BOOLEAN) { | |
240 load_byte_item(); | |
241 } else { | |
242 load_item(); | |
243 } | |
244 } | |
245 | |
246 void LIRItem::load_item_force(LIR_Opr reg) { | |
247 LIR_Opr r = result(); | |
248 if (r != reg) { | |
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249 #if !defined(ARM) && !defined(E500V2) |
0 | 250 if (r->type() != reg->type()) { |
251 // moves between different types need an intervening spill slot | |
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252 r = _gen->force_to_spill(r, reg->type()); |
0 | 253 } |
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254 #endif |
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255 __ move(r, reg); |
0 | 256 _result = reg; |
257 } | |
258 } | |
259 | |
260 ciObject* LIRItem::get_jobject_constant() const { | |
261 ObjectType* oc = type()->as_ObjectType(); | |
262 if (oc) { | |
263 return oc->constant_value(); | |
264 } | |
265 return NULL; | |
266 } | |
267 | |
268 | |
269 jint LIRItem::get_jint_constant() const { | |
270 assert(is_constant() && value() != NULL, ""); | |
271 assert(type()->as_IntConstant() != NULL, "type check"); | |
272 return type()->as_IntConstant()->value(); | |
273 } | |
274 | |
275 | |
276 jint LIRItem::get_address_constant() const { | |
277 assert(is_constant() && value() != NULL, ""); | |
278 assert(type()->as_AddressConstant() != NULL, "type check"); | |
279 return type()->as_AddressConstant()->value(); | |
280 } | |
281 | |
282 | |
283 jfloat LIRItem::get_jfloat_constant() const { | |
284 assert(is_constant() && value() != NULL, ""); | |
285 assert(type()->as_FloatConstant() != NULL, "type check"); | |
286 return type()->as_FloatConstant()->value(); | |
287 } | |
288 | |
289 | |
290 jdouble LIRItem::get_jdouble_constant() const { | |
291 assert(is_constant() && value() != NULL, ""); | |
292 assert(type()->as_DoubleConstant() != NULL, "type check"); | |
293 return type()->as_DoubleConstant()->value(); | |
294 } | |
295 | |
296 | |
297 jlong LIRItem::get_jlong_constant() const { | |
298 assert(is_constant() && value() != NULL, ""); | |
299 assert(type()->as_LongConstant() != NULL, "type check"); | |
300 return type()->as_LongConstant()->value(); | |
301 } | |
302 | |
303 | |
304 | |
305 //-------------------------------------------------------------- | |
306 | |
307 | |
308 void LIRGenerator::init() { | |
342 | 309 _bs = Universe::heap()->barrier_set(); |
0 | 310 } |
311 | |
312 | |
313 void LIRGenerator::block_do_prolog(BlockBegin* block) { | |
314 #ifndef PRODUCT | |
315 if (PrintIRWithLIR) { | |
316 block->print(); | |
317 } | |
318 #endif | |
319 | |
320 // set up the list of LIR instructions | |
321 assert(block->lir() == NULL, "LIR list already computed for this block"); | |
322 _lir = new LIR_List(compilation(), block); | |
323 block->set_lir(_lir); | |
324 | |
325 __ branch_destination(block->label()); | |
326 | |
327 if (LIRTraceExecution && | |
1584 | 328 Compilation::current()->hir()->start()->block_id() != block->block_id() && |
0 | 329 !block->is_set(BlockBegin::exception_entry_flag)) { |
330 assert(block->lir()->instructions_list()->length() == 1, "should come right after br_dst"); | |
331 trace_block_entry(block); | |
332 } | |
333 } | |
334 | |
335 | |
336 void LIRGenerator::block_do_epilog(BlockBegin* block) { | |
337 #ifndef PRODUCT | |
338 if (PrintIRWithLIR) { | |
339 tty->cr(); | |
340 } | |
341 #endif | |
342 | |
343 // LIR_Opr for unpinned constants shouldn't be referenced by other | |
344 // blocks so clear them out after processing the block. | |
345 for (int i = 0; i < _unpinned_constants.length(); i++) { | |
346 _unpinned_constants.at(i)->clear_operand(); | |
347 } | |
348 _unpinned_constants.trunc_to(0); | |
349 | |
350 // clear our any registers for other local constants | |
351 _constants.trunc_to(0); | |
352 _reg_for_constants.trunc_to(0); | |
353 } | |
354 | |
355 | |
356 void LIRGenerator::block_do(BlockBegin* block) { | |
357 CHECK_BAILOUT(); | |
358 | |
359 block_do_prolog(block); | |
360 set_block(block); | |
361 | |
362 for (Instruction* instr = block; instr != NULL; instr = instr->next()) { | |
363 if (instr->is_pinned()) do_root(instr); | |
364 } | |
365 | |
366 set_block(NULL); | |
367 block_do_epilog(block); | |
368 } | |
369 | |
370 | |
371 //-------------------------LIRGenerator----------------------------- | |
372 | |
373 // This is where the tree-walk starts; instr must be root; | |
374 void LIRGenerator::do_root(Value instr) { | |
375 CHECK_BAILOUT(); | |
376 | |
377 InstructionMark im(compilation(), instr); | |
378 | |
379 assert(instr->is_pinned(), "use only with roots"); | |
380 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
381 | |
382 instr->visit(this); | |
383 | |
384 assert(!instr->has_uses() || instr->operand()->is_valid() || | |
385 instr->as_Constant() != NULL || bailed_out(), "invalid item set"); | |
386 } | |
387 | |
388 | |
389 // This is called for each node in tree; the walk stops if a root is reached | |
390 void LIRGenerator::walk(Value instr) { | |
391 InstructionMark im(compilation(), instr); | |
392 //stop walk when encounter a root | |
393 if (instr->is_pinned() && instr->as_Phi() == NULL || instr->operand()->is_valid()) { | |
394 assert(instr->operand() != LIR_OprFact::illegalOpr || instr->as_Constant() != NULL, "this root has not yet been visited"); | |
395 } else { | |
396 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
397 instr->visit(this); | |
398 // assert(instr->use_count() > 0 || instr->as_Phi() != NULL, "leaf instruction must have a use"); | |
399 } | |
400 } | |
401 | |
402 | |
403 CodeEmitInfo* LIRGenerator::state_for(Instruction* x, ValueStack* state, bool ignore_xhandler) { | |
1819 | 404 assert(state != NULL, "state must be defined"); |
405 | |
8860 | 406 #ifndef PRODUCT |
407 state->verify(); | |
408 #endif | |
409 | |
1819 | 410 ValueStack* s = state; |
411 for_each_state(s) { | |
412 if (s->kind() == ValueStack::EmptyExceptionState) { | |
413 assert(s->stack_size() == 0 && s->locals_size() == 0 && (s->locks_size() == 0 || s->locks_size() == 1), "state must be empty"); | |
414 continue; | |
0 | 415 } |
1819 | 416 |
417 int index; | |
418 Value value; | |
419 for_each_stack_value(s, index, value) { | |
420 assert(value->subst() == value, "missed substitution"); | |
421 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
422 walk(value); | |
423 assert(value->operand()->is_valid(), "must be evaluated now"); | |
424 } | |
425 } | |
426 | |
427 int bci = s->bci(); | |
0 | 428 IRScope* scope = s->scope(); |
429 ciMethod* method = scope->method(); | |
430 | |
431 MethodLivenessResult liveness = method->liveness_at_bci(bci); | |
432 if (bci == SynchronizationEntryBCI) { | |
433 if (x->as_ExceptionObject() || x->as_Throw()) { | |
434 // all locals are dead on exit from the synthetic unlocker | |
435 liveness.clear(); | |
436 } else { | |
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437 assert(x->as_MonitorEnter() || x->as_ProfileInvoke(), "only other cases are MonitorEnter and ProfileInvoke"); |
0 | 438 } |
439 } | |
440 if (!liveness.is_valid()) { | |
441 // Degenerate or breakpointed method. | |
442 bailout("Degenerate or breakpointed method"); | |
443 } else { | |
444 assert((int)liveness.size() == s->locals_size(), "error in use of liveness"); | |
445 for_each_local_value(s, index, value) { | |
446 assert(value->subst() == value, "missed substition"); | |
447 if (liveness.at(index) && !value->type()->is_illegal()) { | |
448 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
449 walk(value); | |
450 assert(value->operand()->is_valid(), "must be evaluated now"); | |
451 } | |
452 } else { | |
453 // NULL out this local so that linear scan can assume that all non-NULL values are live. | |
454 s->invalidate_local(index); | |
455 } | |
456 } | |
457 } | |
458 } | |
459 | |
8860 | 460 return new CodeEmitInfo(state, ignore_xhandler ? NULL : x->exception_handlers(), x->check_flag(Instruction::DeoptimizeOnException)); |
0 | 461 } |
462 | |
463 | |
464 CodeEmitInfo* LIRGenerator::state_for(Instruction* x) { | |
1819 | 465 return state_for(x, x->exception_state()); |
0 | 466 } |
467 | |
468 | |
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469 void LIRGenerator::klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve) { |
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470 /* C2 relies on constant pool entries being resolved (ciTypeFlow), so if TieredCompilation |
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471 * is active and the class hasn't yet been resolved we need to emit a patch that resolves |
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472 * the class. */ |
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473 if ((TieredCompilation && need_resolve) || !obj->is_loaded() || PatchALot) { |
0 | 474 assert(info != NULL, "info must be set if class is not loaded"); |
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475 __ klass2reg_patch(NULL, r, info); |
0 | 476 } else { |
477 // no patching needed | |
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478 __ metadata2reg(obj->constant_encoding(), r); |
0 | 479 } |
480 } | |
481 | |
482 | |
483 void LIRGenerator::array_range_check(LIR_Opr array, LIR_Opr index, | |
484 CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info) { | |
485 CodeStub* stub = new RangeCheckStub(range_check_info, index); | |
486 if (index->is_constant()) { | |
487 cmp_mem_int(lir_cond_belowEqual, array, arrayOopDesc::length_offset_in_bytes(), | |
488 index->as_jint(), null_check_info); | |
489 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
490 } else { | |
491 cmp_reg_mem(lir_cond_aboveEqual, index, array, | |
492 arrayOopDesc::length_offset_in_bytes(), T_INT, null_check_info); | |
493 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
494 } | |
495 } | |
496 | |
497 | |
498 void LIRGenerator::nio_range_check(LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) { | |
499 CodeStub* stub = new RangeCheckStub(info, index, true); | |
500 if (index->is_constant()) { | |
501 cmp_mem_int(lir_cond_belowEqual, buffer, java_nio_Buffer::limit_offset(), index->as_jint(), info); | |
502 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
503 } else { | |
504 cmp_reg_mem(lir_cond_aboveEqual, index, buffer, | |
505 java_nio_Buffer::limit_offset(), T_INT, info); | |
506 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
507 } | |
508 __ move(index, result); | |
509 } | |
510 | |
511 | |
512 | |
513 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) { | |
514 LIR_Opr result_op = result; | |
515 LIR_Opr left_op = left; | |
516 LIR_Opr right_op = right; | |
517 | |
518 if (TwoOperandLIRForm && left_op != result_op) { | |
519 assert(right_op != result_op, "malformed"); | |
520 __ move(left_op, result_op); | |
521 left_op = result_op; | |
522 } | |
523 | |
524 switch(code) { | |
525 case Bytecodes::_dadd: | |
526 case Bytecodes::_fadd: | |
527 case Bytecodes::_ladd: | |
528 case Bytecodes::_iadd: __ add(left_op, right_op, result_op); break; | |
529 case Bytecodes::_fmul: | |
530 case Bytecodes::_lmul: __ mul(left_op, right_op, result_op); break; | |
531 | |
532 case Bytecodes::_dmul: | |
533 { | |
534 if (is_strictfp) { | |
535 __ mul_strictfp(left_op, right_op, result_op, tmp_op); break; | |
536 } else { | |
537 __ mul(left_op, right_op, result_op); break; | |
538 } | |
539 } | |
540 break; | |
541 | |
542 case Bytecodes::_imul: | |
543 { | |
544 bool did_strength_reduce = false; | |
545 | |
546 if (right->is_constant()) { | |
547 int c = right->as_jint(); | |
548 if (is_power_of_2(c)) { | |
549 // do not need tmp here | |
550 __ shift_left(left_op, exact_log2(c), result_op); | |
551 did_strength_reduce = true; | |
552 } else { | |
553 did_strength_reduce = strength_reduce_multiply(left_op, c, result_op, tmp_op); | |
554 } | |
555 } | |
556 // we couldn't strength reduce so just emit the multiply | |
557 if (!did_strength_reduce) { | |
558 __ mul(left_op, right_op, result_op); | |
559 } | |
560 } | |
561 break; | |
562 | |
563 case Bytecodes::_dsub: | |
564 case Bytecodes::_fsub: | |
565 case Bytecodes::_lsub: | |
566 case Bytecodes::_isub: __ sub(left_op, right_op, result_op); break; | |
567 | |
568 case Bytecodes::_fdiv: __ div (left_op, right_op, result_op); break; | |
569 // ldiv and lrem are implemented with a direct runtime call | |
570 | |
571 case Bytecodes::_ddiv: | |
572 { | |
573 if (is_strictfp) { | |
574 __ div_strictfp (left_op, right_op, result_op, tmp_op); break; | |
575 } else { | |
576 __ div (left_op, right_op, result_op); break; | |
577 } | |
578 } | |
579 break; | |
580 | |
581 case Bytecodes::_drem: | |
582 case Bytecodes::_frem: __ rem (left_op, right_op, result_op); break; | |
583 | |
584 default: ShouldNotReachHere(); | |
585 } | |
586 } | |
587 | |
588 | |
589 void LIRGenerator::arithmetic_op_int(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp) { | |
590 arithmetic_op(code, result, left, right, false, tmp); | |
591 } | |
592 | |
593 | |
594 void LIRGenerator::arithmetic_op_long(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) { | |
595 arithmetic_op(code, result, left, right, false, LIR_OprFact::illegalOpr, info); | |
596 } | |
597 | |
598 | |
599 void LIRGenerator::arithmetic_op_fpu(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp) { | |
600 arithmetic_op(code, result, left, right, is_strictfp, tmp); | |
601 } | |
602 | |
603 | |
604 void LIRGenerator::shift_op(Bytecodes::Code code, LIR_Opr result_op, LIR_Opr value, LIR_Opr count, LIR_Opr tmp) { | |
605 if (TwoOperandLIRForm && value != result_op) { | |
606 assert(count != result_op, "malformed"); | |
607 __ move(value, result_op); | |
608 value = result_op; | |
609 } | |
610 | |
611 assert(count->is_constant() || count->is_register(), "must be"); | |
612 switch(code) { | |
613 case Bytecodes::_ishl: | |
614 case Bytecodes::_lshl: __ shift_left(value, count, result_op, tmp); break; | |
615 case Bytecodes::_ishr: | |
616 case Bytecodes::_lshr: __ shift_right(value, count, result_op, tmp); break; | |
617 case Bytecodes::_iushr: | |
618 case Bytecodes::_lushr: __ unsigned_shift_right(value, count, result_op, tmp); break; | |
619 default: ShouldNotReachHere(); | |
620 } | |
621 } | |
622 | |
623 | |
624 void LIRGenerator::logic_op (Bytecodes::Code code, LIR_Opr result_op, LIR_Opr left_op, LIR_Opr right_op) { | |
625 if (TwoOperandLIRForm && left_op != result_op) { | |
626 assert(right_op != result_op, "malformed"); | |
627 __ move(left_op, result_op); | |
628 left_op = result_op; | |
629 } | |
630 | |
631 switch(code) { | |
632 case Bytecodes::_iand: | |
633 case Bytecodes::_land: __ logical_and(left_op, right_op, result_op); break; | |
634 | |
635 case Bytecodes::_ior: | |
636 case Bytecodes::_lor: __ logical_or(left_op, right_op, result_op); break; | |
637 | |
638 case Bytecodes::_ixor: | |
639 case Bytecodes::_lxor: __ logical_xor(left_op, right_op, result_op); break; | |
640 | |
641 default: ShouldNotReachHere(); | |
642 } | |
643 } | |
644 | |
645 | |
646 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) { | |
647 if (!GenerateSynchronizationCode) return; | |
648 // for slow path, use debug info for state after successful locking | |
649 CodeStub* slow_path = new MonitorEnterStub(object, lock, info); | |
650 __ load_stack_address_monitor(monitor_no, lock); | |
651 // for handling NullPointerException, use debug info representing just the lock stack before this monitorenter | |
652 __ lock_object(hdr, object, lock, scratch, slow_path, info_for_exception); | |
653 } | |
654 | |
655 | |
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656 void LIRGenerator::monitor_exit(LIR_Opr object, LIR_Opr lock, LIR_Opr new_hdr, LIR_Opr scratch, int monitor_no) { |
0 | 657 if (!GenerateSynchronizationCode) return; |
658 // setup registers | |
659 LIR_Opr hdr = lock; | |
660 lock = new_hdr; | |
661 CodeStub* slow_path = new MonitorExitStub(lock, UseFastLocking, monitor_no); | |
662 __ load_stack_address_monitor(monitor_no, lock); | |
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663 __ unlock_object(hdr, object, lock, scratch, slow_path); |
0 | 664 } |
665 | |
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666 #ifndef PRODUCT |
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667 void LIRGenerator::print_if_not_loaded(const NewInstance* new_instance) { |
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668 if (PrintNotLoaded && !new_instance->klass()->is_loaded()) { |
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669 tty->print_cr(" ###class not loaded at new bci %d", new_instance->printable_bci()); |
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670 } else if (PrintNotLoaded && (TieredCompilation && new_instance->is_unresolved())) { |
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671 tty->print_cr(" ###class not resolved at new bci %d", new_instance->printable_bci()); |
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672 } |
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673 } |
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674 #endif |
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675 |
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676 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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677 klass2reg_with_patching(klass_reg, klass, info, is_unresolved); |
0 | 678 // If klass is not loaded we do not know if the klass has finalizers: |
679 if (UseFastNewInstance && klass->is_loaded() | |
680 && !Klass::layout_helper_needs_slow_path(klass->layout_helper())) { | |
681 | |
682 Runtime1::StubID stub_id = klass->is_initialized() ? Runtime1::fast_new_instance_id : Runtime1::fast_new_instance_init_check_id; | |
683 | |
684 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, stub_id); | |
685 | |
686 assert(klass->is_loaded(), "must be loaded"); | |
687 // allocate space for instance | |
688 assert(klass->size_helper() >= 0, "illegal instance size"); | |
689 const int instance_size = align_object_size(klass->size_helper()); | |
690 __ allocate_object(dst, scratch1, scratch2, scratch3, scratch4, | |
691 oopDesc::header_size(), instance_size, klass_reg, !klass->is_initialized(), slow_path); | |
692 } else { | |
693 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, Runtime1::new_instance_id); | |
694 __ branch(lir_cond_always, T_ILLEGAL, slow_path); | |
695 __ branch_destination(slow_path->continuation()); | |
696 } | |
697 } | |
698 | |
699 | |
700 static bool is_constant_zero(Instruction* inst) { | |
701 IntConstant* c = inst->type()->as_IntConstant(); | |
702 if (c) { | |
703 return (c->value() == 0); | |
704 } | |
705 return false; | |
706 } | |
707 | |
708 | |
709 static bool positive_constant(Instruction* inst) { | |
710 IntConstant* c = inst->type()->as_IntConstant(); | |
711 if (c) { | |
712 return (c->value() >= 0); | |
713 } | |
714 return false; | |
715 } | |
716 | |
717 | |
718 static ciArrayKlass* as_array_klass(ciType* type) { | |
719 if (type != NULL && type->is_array_klass() && type->is_loaded()) { | |
720 return (ciArrayKlass*)type; | |
721 } else { | |
722 return NULL; | |
723 } | |
724 } | |
725 | |
2446 | 726 static ciType* phi_declared_type(Phi* phi) { |
727 ciType* t = phi->operand_at(0)->declared_type(); | |
728 if (t == NULL) { | |
729 return NULL; | |
730 } | |
731 for(int i = 1; i < phi->operand_count(); i++) { | |
732 if (t != phi->operand_at(i)->declared_type()) { | |
733 return NULL; | |
734 } | |
735 } | |
736 return t; | |
737 } | |
738 | |
0 | 739 void LIRGenerator::arraycopy_helper(Intrinsic* x, int* flagsp, ciArrayKlass** expected_typep) { |
740 Instruction* src = x->argument_at(0); | |
741 Instruction* src_pos = x->argument_at(1); | |
742 Instruction* dst = x->argument_at(2); | |
743 Instruction* dst_pos = x->argument_at(3); | |
744 Instruction* length = x->argument_at(4); | |
745 | |
746 // first try to identify the likely type of the arrays involved | |
747 ciArrayKlass* expected_type = NULL; | |
2446 | 748 bool is_exact = false, src_objarray = false, dst_objarray = false; |
0 | 749 { |
750 ciArrayKlass* src_exact_type = as_array_klass(src->exact_type()); | |
751 ciArrayKlass* src_declared_type = as_array_klass(src->declared_type()); | |
2446 | 752 Phi* phi; |
753 if (src_declared_type == NULL && (phi = src->as_Phi()) != NULL) { | |
754 src_declared_type = as_array_klass(phi_declared_type(phi)); | |
755 } | |
0 | 756 ciArrayKlass* dst_exact_type = as_array_klass(dst->exact_type()); |
757 ciArrayKlass* dst_declared_type = as_array_klass(dst->declared_type()); | |
2446 | 758 if (dst_declared_type == NULL && (phi = dst->as_Phi()) != NULL) { |
759 dst_declared_type = as_array_klass(phi_declared_type(phi)); | |
760 } | |
761 | |
0 | 762 if (src_exact_type != NULL && src_exact_type == dst_exact_type) { |
763 // the types exactly match so the type is fully known | |
764 is_exact = true; | |
765 expected_type = src_exact_type; | |
766 } else if (dst_exact_type != NULL && dst_exact_type->is_obj_array_klass()) { | |
767 ciArrayKlass* dst_type = (ciArrayKlass*) dst_exact_type; | |
768 ciArrayKlass* src_type = NULL; | |
769 if (src_exact_type != NULL && src_exact_type->is_obj_array_klass()) { | |
770 src_type = (ciArrayKlass*) src_exact_type; | |
771 } else if (src_declared_type != NULL && src_declared_type->is_obj_array_klass()) { | |
772 src_type = (ciArrayKlass*) src_declared_type; | |
773 } | |
774 if (src_type != NULL) { | |
775 if (src_type->element_type()->is_subtype_of(dst_type->element_type())) { | |
776 is_exact = true; | |
777 expected_type = dst_type; | |
778 } | |
779 } | |
780 } | |
781 // at least pass along a good guess | |
782 if (expected_type == NULL) expected_type = dst_exact_type; | |
783 if (expected_type == NULL) expected_type = src_declared_type; | |
784 if (expected_type == NULL) expected_type = dst_declared_type; | |
2446 | 785 |
786 src_objarray = (src_exact_type && src_exact_type->is_obj_array_klass()) || (src_declared_type && src_declared_type->is_obj_array_klass()); | |
787 dst_objarray = (dst_exact_type && dst_exact_type->is_obj_array_klass()) || (dst_declared_type && dst_declared_type->is_obj_array_klass()); | |
0 | 788 } |
789 | |
790 // if a probable array type has been identified, figure out if any | |
791 // of the required checks for a fast case can be elided. | |
792 int flags = LIR_OpArrayCopy::all_flags; | |
2446 | 793 |
794 if (!src_objarray) | |
795 flags &= ~LIR_OpArrayCopy::src_objarray; | |
796 if (!dst_objarray) | |
797 flags &= ~LIR_OpArrayCopy::dst_objarray; | |
798 | |
799 if (!x->arg_needs_null_check(0)) | |
800 flags &= ~LIR_OpArrayCopy::src_null_check; | |
801 if (!x->arg_needs_null_check(2)) | |
802 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
803 | |
804 | |
0 | 805 if (expected_type != NULL) { |
2446 | 806 Value length_limit = NULL; |
807 | |
808 IfOp* ifop = length->as_IfOp(); | |
809 if (ifop != NULL) { | |
810 // look for expressions like min(v, a.length) which ends up as | |
811 // x > y ? y : x or x >= y ? y : x | |
812 if ((ifop->cond() == If::gtr || ifop->cond() == If::geq) && | |
813 ifop->x() == ifop->fval() && | |
814 ifop->y() == ifop->tval()) { | |
815 length_limit = ifop->y(); | |
816 } | |
817 } | |
818 | |
819 // try to skip null checks and range checks | |
820 NewArray* src_array = src->as_NewArray(); | |
821 if (src_array != NULL) { | |
0 | 822 flags &= ~LIR_OpArrayCopy::src_null_check; |
2446 | 823 if (length_limit != NULL && |
824 src_array->length() == length_limit && | |
825 is_constant_zero(src_pos)) { | |
826 flags &= ~LIR_OpArrayCopy::src_range_check; | |
827 } | |
828 } | |
829 | |
830 NewArray* dst_array = dst->as_NewArray(); | |
831 if (dst_array != NULL) { | |
0 | 832 flags &= ~LIR_OpArrayCopy::dst_null_check; |
2446 | 833 if (length_limit != NULL && |
834 dst_array->length() == length_limit && | |
835 is_constant_zero(dst_pos)) { | |
836 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
837 } | |
838 } | |
0 | 839 |
840 // check from incoming constant values | |
841 if (positive_constant(src_pos)) | |
842 flags &= ~LIR_OpArrayCopy::src_pos_positive_check; | |
843 if (positive_constant(dst_pos)) | |
844 flags &= ~LIR_OpArrayCopy::dst_pos_positive_check; | |
845 if (positive_constant(length)) | |
846 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
847 | |
848 // see if the range check can be elided, which might also imply | |
849 // that src or dst is non-null. | |
850 ArrayLength* al = length->as_ArrayLength(); | |
851 if (al != NULL) { | |
852 if (al->array() == src) { | |
853 // it's the length of the source array | |
854 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
855 flags &= ~LIR_OpArrayCopy::src_null_check; | |
856 if (is_constant_zero(src_pos)) | |
857 flags &= ~LIR_OpArrayCopy::src_range_check; | |
858 } | |
859 if (al->array() == dst) { | |
860 // it's the length of the destination array | |
861 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
862 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
863 if (is_constant_zero(dst_pos)) | |
864 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
865 } | |
866 } | |
867 if (is_exact) { | |
868 flags &= ~LIR_OpArrayCopy::type_check; | |
869 } | |
870 } | |
871 | |
2446 | 872 IntConstant* src_int = src_pos->type()->as_IntConstant(); |
873 IntConstant* dst_int = dst_pos->type()->as_IntConstant(); | |
874 if (src_int && dst_int) { | |
875 int s_offs = src_int->value(); | |
876 int d_offs = dst_int->value(); | |
877 if (src_int->value() >= dst_int->value()) { | |
878 flags &= ~LIR_OpArrayCopy::overlapping; | |
879 } | |
880 if (expected_type != NULL) { | |
881 BasicType t = expected_type->element_type()->basic_type(); | |
882 int element_size = type2aelembytes(t); | |
883 if (((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && | |
884 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0)) { | |
885 flags &= ~LIR_OpArrayCopy::unaligned; | |
886 } | |
887 } | |
888 } else if (src_pos == dst_pos || is_constant_zero(dst_pos)) { | |
889 // src and dest positions are the same, or dst is zero so assume | |
890 // nonoverlapping copy. | |
891 flags &= ~LIR_OpArrayCopy::overlapping; | |
892 } | |
893 | |
0 | 894 if (src == dst) { |
895 // moving within a single array so no type checks are needed | |
896 if (flags & LIR_OpArrayCopy::type_check) { | |
897 flags &= ~LIR_OpArrayCopy::type_check; | |
898 } | |
899 } | |
900 *flagsp = flags; | |
901 *expected_typep = (ciArrayKlass*)expected_type; | |
902 } | |
903 | |
904 | |
905 LIR_Opr LIRGenerator::round_item(LIR_Opr opr) { | |
906 assert(opr->is_register(), "why spill if item is not register?"); | |
907 | |
908 if (RoundFPResults && UseSSE < 1 && opr->is_single_fpu()) { | |
909 LIR_Opr result = new_register(T_FLOAT); | |
910 set_vreg_flag(result, must_start_in_memory); | |
911 assert(opr->is_register(), "only a register can be spilled"); | |
912 assert(opr->value_type()->is_float(), "rounding only for floats available"); | |
913 __ roundfp(opr, LIR_OprFact::illegalOpr, result); | |
914 return result; | |
915 } | |
916 return opr; | |
917 } | |
918 | |
919 | |
920 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) { | |
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921 assert(type2size[t] == type2size[value->type()], |
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922 err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type()))); |
0 | 923 if (!value->is_register()) { |
924 // force into a register | |
925 LIR_Opr r = new_register(value->type()); | |
926 __ move(value, r); | |
927 value = r; | |
928 } | |
929 | |
930 // create a spill location | |
931 LIR_Opr tmp = new_register(t); | |
932 set_vreg_flag(tmp, LIRGenerator::must_start_in_memory); | |
933 | |
934 // move from register to spill | |
935 __ move(value, tmp); | |
936 return tmp; | |
937 } | |
938 | |
939 void LIRGenerator::profile_branch(If* if_instr, If::Condition cond) { | |
940 if (if_instr->should_profile()) { | |
941 ciMethod* method = if_instr->profiled_method(); | |
942 assert(method != NULL, "method should be set if branch is profiled"); | |
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943 ciMethodData* md = method->method_data_or_null(); |
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944 assert(md != NULL, "Sanity"); |
0 | 945 ciProfileData* data = md->bci_to_data(if_instr->profiled_bci()); |
946 assert(data != NULL, "must have profiling data"); | |
947 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
948 int taken_count_offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
949 int not_taken_count_offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
1783 | 950 if (if_instr->is_swapped()) { |
951 int t = taken_count_offset; | |
952 taken_count_offset = not_taken_count_offset; | |
953 not_taken_count_offset = t; | |
954 } | |
955 | |
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956 LIR_Opr md_reg = new_register(T_METADATA); |
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957 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 958 |
959 LIR_Opr data_offset_reg = new_pointer_register(); | |
0 | 960 __ cmove(lir_cond(cond), |
1783 | 961 LIR_OprFact::intptrConst(taken_count_offset), |
962 LIR_OprFact::intptrConst(not_taken_count_offset), | |
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963 data_offset_reg, as_BasicType(if_instr->x()->type())); |
1783 | 964 |
965 // MDO cells are intptr_t, so the data_reg width is arch-dependent. | |
966 LIR_Opr data_reg = new_pointer_register(); | |
967 LIR_Address* data_addr = new LIR_Address(md_reg, data_offset_reg, data_reg->type()); | |
2002 | 968 __ move(data_addr, data_reg); |
1783 | 969 // Use leal instead of add to avoid destroying condition codes on x86 |
0 | 970 LIR_Address* fake_incr_value = new LIR_Address(data_reg, DataLayout::counter_increment, T_INT); |
971 __ leal(LIR_OprFact::address(fake_incr_value), data_reg); | |
2002 | 972 __ move(data_reg, data_addr); |
0 | 973 } |
974 } | |
975 | |
976 // Phi technique: | |
977 // This is about passing live values from one basic block to the other. | |
978 // In code generated with Java it is rather rare that more than one | |
979 // value is on the stack from one basic block to the other. | |
980 // We optimize our technique for efficient passing of one value | |
981 // (of type long, int, double..) but it can be extended. | |
982 // When entering or leaving a basic block, all registers and all spill | |
983 // slots are release and empty. We use the released registers | |
984 // and spill slots to pass the live values from one block | |
985 // to the other. The topmost value, i.e., the value on TOS of expression | |
986 // stack is passed in registers. All other values are stored in spilling | |
987 // area. Every Phi has an index which designates its spill slot | |
988 // At exit of a basic block, we fill the register(s) and spill slots. | |
989 // At entry of a basic block, the block_prolog sets up the content of phi nodes | |
990 // and locks necessary registers and spilling slots. | |
991 | |
992 | |
993 // move current value to referenced phi function | |
994 void LIRGenerator::move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val) { | |
995 Phi* phi = sux_val->as_Phi(); | |
996 // cur_val can be null without phi being null in conjunction with inlining | |
997 if (phi != NULL && cur_val != NULL && cur_val != phi && !phi->is_illegal()) { | |
998 LIR_Opr operand = cur_val->operand(); | |
999 if (cur_val->operand()->is_illegal()) { | |
1000 assert(cur_val->as_Constant() != NULL || cur_val->as_Local() != NULL, | |
1001 "these can be produced lazily"); | |
1002 operand = operand_for_instruction(cur_val); | |
1003 } | |
1004 resolver->move(operand, operand_for_instruction(phi)); | |
1005 } | |
1006 } | |
1007 | |
1008 | |
1009 // Moves all stack values into their PHI position | |
1010 void LIRGenerator::move_to_phi(ValueStack* cur_state) { | |
1011 BlockBegin* bb = block(); | |
1012 if (bb->number_of_sux() == 1) { | |
1013 BlockBegin* sux = bb->sux_at(0); | |
1014 assert(sux->number_of_preds() > 0, "invalid CFG"); | |
1015 | |
1016 // a block with only one predecessor never has phi functions | |
1017 if (sux->number_of_preds() > 1) { | |
1018 int max_phis = cur_state->stack_size() + cur_state->locals_size(); | |
1019 PhiResolver resolver(this, _virtual_register_number + max_phis * 2); | |
1020 | |
1021 ValueStack* sux_state = sux->state(); | |
1022 Value sux_value; | |
1023 int index; | |
1024 | |
1819 | 1025 assert(cur_state->scope() == sux_state->scope(), "not matching"); |
1026 assert(cur_state->locals_size() == sux_state->locals_size(), "not matching"); | |
1027 assert(cur_state->stack_size() == sux_state->stack_size(), "not matching"); | |
1028 | |
0 | 1029 for_each_stack_value(sux_state, index, sux_value) { |
1030 move_to_phi(&resolver, cur_state->stack_at(index), sux_value); | |
1031 } | |
1032 | |
1033 for_each_local_value(sux_state, index, sux_value) { | |
1034 move_to_phi(&resolver, cur_state->local_at(index), sux_value); | |
1035 } | |
1036 | |
1037 assert(cur_state->caller_state() == sux_state->caller_state(), "caller states must be equal"); | |
1038 } | |
1039 } | |
1040 } | |
1041 | |
1042 | |
1043 LIR_Opr LIRGenerator::new_register(BasicType type) { | |
1044 int vreg = _virtual_register_number; | |
1045 // add a little fudge factor for the bailout, since the bailout is | |
1046 // only checked periodically. This gives a few extra registers to | |
1047 // hand out before we really run out, which helps us keep from | |
1048 // tripping over assertions. | |
1049 if (vreg + 20 >= LIR_OprDesc::vreg_max) { | |
1050 bailout("out of virtual registers"); | |
1051 if (vreg + 2 >= LIR_OprDesc::vreg_max) { | |
1052 // wrap it around | |
1053 _virtual_register_number = LIR_OprDesc::vreg_base; | |
1054 } | |
1055 } | |
1056 _virtual_register_number += 1; | |
1057 return LIR_OprFact::virtual_register(vreg, type); | |
1058 } | |
1059 | |
1060 | |
1061 // Try to lock using register in hint | |
1062 LIR_Opr LIRGenerator::rlock(Value instr) { | |
1063 return new_register(instr->type()); | |
1064 } | |
1065 | |
1066 | |
1067 // does an rlock and sets result | |
1068 LIR_Opr LIRGenerator::rlock_result(Value x) { | |
1069 LIR_Opr reg = rlock(x); | |
1070 set_result(x, reg); | |
1071 return reg; | |
1072 } | |
1073 | |
1074 | |
1075 // does an rlock and sets result | |
1076 LIR_Opr LIRGenerator::rlock_result(Value x, BasicType type) { | |
1077 LIR_Opr reg; | |
1078 switch (type) { | |
1079 case T_BYTE: | |
1080 case T_BOOLEAN: | |
1081 reg = rlock_byte(type); | |
1082 break; | |
1083 default: | |
1084 reg = rlock(x); | |
1085 break; | |
1086 } | |
1087 | |
1088 set_result(x, reg); | |
1089 return reg; | |
1090 } | |
1091 | |
1092 | |
1093 //--------------------------------------------------------------------- | |
1094 ciObject* LIRGenerator::get_jobject_constant(Value value) { | |
1095 ObjectType* oc = value->type()->as_ObjectType(); | |
1096 if (oc) { | |
1097 return oc->constant_value(); | |
1098 } | |
1099 return NULL; | |
1100 } | |
1101 | |
1102 | |
1103 void LIRGenerator::do_ExceptionObject(ExceptionObject* x) { | |
1104 assert(block()->is_set(BlockBegin::exception_entry_flag), "ExceptionObject only allowed in exception handler block"); | |
1105 assert(block()->next() == x, "ExceptionObject must be first instruction of block"); | |
1106 | |
1107 // no moves are created for phi functions at the begin of exception | |
1108 // handlers, so assign operands manually here | |
1109 for_each_phi_fun(block(), phi, | |
1110 operand_for_instruction(phi)); | |
1111 | |
1112 LIR_Opr thread_reg = getThreadPointer(); | |
2002 | 1113 __ move_wide(new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT), |
1114 exceptionOopOpr()); | |
1115 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1116 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT)); | |
1117 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1118 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_pc_offset()), T_OBJECT)); | |
0 | 1119 |
1120 LIR_Opr result = new_register(T_OBJECT); | |
1121 __ move(exceptionOopOpr(), result); | |
1122 set_result(x, result); | |
1123 } | |
1124 | |
1125 | |
1126 //---------------------------------------------------------------------- | |
1127 //---------------------------------------------------------------------- | |
1128 //---------------------------------------------------------------------- | |
1129 //---------------------------------------------------------------------- | |
1130 // visitor functions | |
1131 //---------------------------------------------------------------------- | |
1132 //---------------------------------------------------------------------- | |
1133 //---------------------------------------------------------------------- | |
1134 //---------------------------------------------------------------------- | |
1135 | |
1136 void LIRGenerator::do_Phi(Phi* x) { | |
1137 // phi functions are never visited directly | |
1138 ShouldNotReachHere(); | |
1139 } | |
1140 | |
1141 | |
1142 // Code for a constant is generated lazily unless the constant is frequently used and can't be inlined. | |
1143 void LIRGenerator::do_Constant(Constant* x) { | |
1819 | 1144 if (x->state_before() != NULL) { |
0 | 1145 // Any constant with a ValueStack requires patching so emit the patch here |
1146 LIR_Opr reg = rlock_result(x); | |
1819 | 1147 CodeEmitInfo* info = state_for(x, x->state_before()); |
0 | 1148 __ oop2reg_patch(NULL, reg, info); |
1149 } else if (x->use_count() > 1 && !can_inline_as_constant(x)) { | |
1150 if (!x->is_pinned()) { | |
1151 // unpinned constants are handled specially so that they can be | |
1152 // put into registers when they are used multiple times within a | |
1153 // block. After the block completes their operand will be | |
1154 // cleared so that other blocks can't refer to that register. | |
1155 set_result(x, load_constant(x)); | |
1156 } else { | |
1157 LIR_Opr res = x->operand(); | |
1158 if (!res->is_valid()) { | |
1159 res = LIR_OprFact::value_type(x->type()); | |
1160 } | |
1161 if (res->is_constant()) { | |
1162 LIR_Opr reg = rlock_result(x); | |
1163 __ move(res, reg); | |
1164 } else { | |
1165 set_result(x, res); | |
1166 } | |
1167 } | |
1168 } else { | |
1169 set_result(x, LIR_OprFact::value_type(x->type())); | |
1170 } | |
1171 } | |
1172 | |
1173 | |
1174 void LIRGenerator::do_Local(Local* x) { | |
1175 // operand_for_instruction has the side effect of setting the result | |
1176 // so there's no need to do it here. | |
1177 operand_for_instruction(x); | |
1178 } | |
1179 | |
1180 | |
1181 void LIRGenerator::do_IfInstanceOf(IfInstanceOf* x) { | |
1182 Unimplemented(); | |
1183 } | |
1184 | |
1185 | |
1186 void LIRGenerator::do_Return(Return* x) { | |
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1187 if (compilation()->env()->dtrace_method_probes()) { |
0 | 1188 BasicTypeList signature; |
2002 | 1189 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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1190 signature.append(T_METADATA); // Method* |
0 | 1191 LIR_OprList* args = new LIR_OprList(); |
1192 args->append(getThreadPointer()); | |
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1193 LIR_Opr meth = new_register(T_METADATA); |
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1194 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 1195 args->append(meth); |
1196 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL); | |
1197 } | |
1198 | |
1199 if (x->type()->is_void()) { | |
1200 __ return_op(LIR_OprFact::illegalOpr); | |
1201 } else { | |
1202 LIR_Opr reg = result_register_for(x->type(), /*callee=*/true); | |
1203 LIRItem result(x->result(), this); | |
1204 | |
1205 result.load_item_force(reg); | |
1206 __ return_op(result.result()); | |
1207 } | |
1208 set_no_result(x); | |
1209 } | |
1210 | |
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1211 // Examble: ref.get() |
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1212 // Combination of LoadField and g1 pre-write barrier |
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1213 void LIRGenerator::do_Reference_get(Intrinsic* x) { |
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1214 |
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1215 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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1216 guarantee(referent_offset > 0, "referent offset not initialized"); |
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1217 |
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1218 assert(x->number_of_arguments() == 1, "wrong type"); |
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1219 |
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1220 LIRItem reference(x->argument_at(0), this); |
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1221 reference.load_item(); |
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1222 |
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1223 // need to perform the null check on the reference objecy |
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1224 CodeEmitInfo* info = NULL; |
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1225 if (x->needs_null_check()) { |
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1226 info = state_for(x); |
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1227 } |
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1228 |
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1229 LIR_Address* referent_field_adr = |
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1230 new LIR_Address(reference.result(), referent_offset, T_OBJECT); |
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1231 |
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1232 LIR_Opr result = rlock_result(x); |
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1233 |
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1234 __ load(referent_field_adr, result, info); |
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1235 |
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1236 // Register the value in the referent field with the pre-barrier |
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1237 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
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1238 result /* pre_val */, |
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1239 false /* do_load */, |
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1240 false /* patch */, |
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1241 NULL /* info */); |
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1242 } |
0 | 1243 |
6135 | 1244 // Example: clazz.isInstance(object) |
1245 void LIRGenerator::do_isInstance(Intrinsic* x) { | |
1246 assert(x->number_of_arguments() == 2, "wrong type"); | |
1247 | |
1248 // TODO could try to substitute this node with an equivalent InstanceOf | |
1249 // if clazz is known to be a constant Class. This will pick up newly found | |
1250 // constants after HIR construction. I'll leave this to a future change. | |
1251 | |
1252 // as a first cut, make a simple leaf call to runtime to stay platform independent. | |
1253 // could follow the aastore example in a future change. | |
1254 | |
1255 LIRItem clazz(x->argument_at(0), this); | |
1256 LIRItem object(x->argument_at(1), this); | |
1257 clazz.load_item(); | |
1258 object.load_item(); | |
1259 LIR_Opr result = rlock_result(x); | |
1260 | |
1261 // need to perform null check on clazz | |
1262 if (x->needs_null_check()) { | |
1263 CodeEmitInfo* info = state_for(x); | |
1264 __ null_check(clazz.result(), info); | |
1265 } | |
1266 | |
1267 LIR_Opr call_result = call_runtime(clazz.value(), object.value(), | |
1268 CAST_FROM_FN_PTR(address, Runtime1::is_instance_of), | |
1269 x->type(), | |
1270 NULL); // NULL CodeEmitInfo results in a leaf call | |
1271 __ move(call_result, result); | |
1272 } | |
1273 | |
0 | 1274 // Example: object.getClass () |
1275 void LIRGenerator::do_getClass(Intrinsic* x) { | |
1276 assert(x->number_of_arguments() == 1, "wrong type"); | |
1277 | |
1278 LIRItem rcvr(x->argument_at(0), this); | |
1279 rcvr.load_item(); | |
12955 | 1280 LIR_Opr temp = new_register(T_METADATA); |
0 | 1281 LIR_Opr result = rlock_result(x); |
1282 | |
1283 // need to perform the null check on the rcvr | |
1284 CodeEmitInfo* info = NULL; | |
1285 if (x->needs_null_check()) { | |
1819 | 1286 info = state_for(x); |
0 | 1287 } |
12955 | 1288 |
1289 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the | |
1290 // meaning of these two is mixed up (see JDK-8026837). | |
1291 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info); | |
1292 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); | |
0 | 1293 } |
1294 | |
1295 | |
1296 // Example: Thread.currentThread() | |
1297 void LIRGenerator::do_currentThread(Intrinsic* x) { | |
1298 assert(x->number_of_arguments() == 0, "wrong type"); | |
1299 LIR_Opr reg = rlock_result(x); | |
2002 | 1300 __ move_wide(new LIR_Address(getThreadPointer(), in_bytes(JavaThread::threadObj_offset()), T_OBJECT), reg); |
0 | 1301 } |
1302 | |
1303 | |
1304 void LIRGenerator::do_RegisterFinalizer(Intrinsic* x) { | |
1305 assert(x->number_of_arguments() == 1, "wrong type"); | |
1306 LIRItem receiver(x->argument_at(0), this); | |
1307 | |
1308 receiver.load_item(); | |
1309 BasicTypeList signature; | |
1310 signature.append(T_OBJECT); // receiver | |
1311 LIR_OprList* args = new LIR_OprList(); | |
1312 args->append(receiver.result()); | |
1313 CodeEmitInfo* info = state_for(x, x->state()); | |
1314 call_runtime(&signature, args, | |
1315 CAST_FROM_FN_PTR(address, Runtime1::entry_for(Runtime1::register_finalizer_id)), | |
1316 voidType, info); | |
1317 | |
1318 set_no_result(x); | |
1319 } | |
1320 | |
1321 | |
1322 //------------------------local access-------------------------------------- | |
1323 | |
1324 LIR_Opr LIRGenerator::operand_for_instruction(Instruction* x) { | |
1325 if (x->operand()->is_illegal()) { | |
1326 Constant* c = x->as_Constant(); | |
1327 if (c != NULL) { | |
1328 x->set_operand(LIR_OprFact::value_type(c->type())); | |
1329 } else { | |
1330 assert(x->as_Phi() || x->as_Local() != NULL, "only for Phi and Local"); | |
1331 // allocate a virtual register for this local or phi | |
1332 x->set_operand(rlock(x)); | |
1333 _instruction_for_operand.at_put_grow(x->operand()->vreg_number(), x, NULL); | |
1334 } | |
1335 } | |
1336 return x->operand(); | |
1337 } | |
1338 | |
1339 | |
1340 Instruction* LIRGenerator::instruction_for_opr(LIR_Opr opr) { | |
1341 if (opr->is_virtual()) { | |
1342 return instruction_for_vreg(opr->vreg_number()); | |
1343 } | |
1344 return NULL; | |
1345 } | |
1346 | |
1347 | |
1348 Instruction* LIRGenerator::instruction_for_vreg(int reg_num) { | |
1349 if (reg_num < _instruction_for_operand.length()) { | |
1350 return _instruction_for_operand.at(reg_num); | |
1351 } | |
1352 return NULL; | |
1353 } | |
1354 | |
1355 | |
1356 void LIRGenerator::set_vreg_flag(int vreg_num, VregFlag f) { | |
1357 if (_vreg_flags.size_in_bits() == 0) { | |
1358 BitMap2D temp(100, num_vreg_flags); | |
1359 temp.clear(); | |
1360 _vreg_flags = temp; | |
1361 } | |
1362 _vreg_flags.at_put_grow(vreg_num, f, true); | |
1363 } | |
1364 | |
1365 bool LIRGenerator::is_vreg_flag_set(int vreg_num, VregFlag f) { | |
1366 if (!_vreg_flags.is_valid_index(vreg_num, f)) { | |
1367 return false; | |
1368 } | |
1369 return _vreg_flags.at(vreg_num, f); | |
1370 } | |
1371 | |
1372 | |
1373 // Block local constant handling. This code is useful for keeping | |
1374 // unpinned constants and constants which aren't exposed in the IR in | |
1375 // registers. Unpinned Constant instructions have their operands | |
1376 // cleared when the block is finished so that other blocks can't end | |
1377 // up referring to their registers. | |
1378 | |
1379 LIR_Opr LIRGenerator::load_constant(Constant* x) { | |
1380 assert(!x->is_pinned(), "only for unpinned constants"); | |
1381 _unpinned_constants.append(x); | |
1382 return load_constant(LIR_OprFact::value_type(x->type())->as_constant_ptr()); | |
1383 } | |
1384 | |
1385 | |
1386 LIR_Opr LIRGenerator::load_constant(LIR_Const* c) { | |
1387 BasicType t = c->type(); | |
1388 for (int i = 0; i < _constants.length(); i++) { | |
1389 LIR_Const* other = _constants.at(i); | |
1390 if (t == other->type()) { | |
1391 switch (t) { | |
1392 case T_INT: | |
1393 case T_FLOAT: | |
1394 if (c->as_jint_bits() != other->as_jint_bits()) continue; | |
1395 break; | |
1396 case T_LONG: | |
1397 case T_DOUBLE: | |
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1398 if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue; |
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1399 if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue; |
0 | 1400 break; |
1401 case T_OBJECT: | |
1402 if (c->as_jobject() != other->as_jobject()) continue; | |
1403 break; | |
1404 } | |
1405 return _reg_for_constants.at(i); | |
1406 } | |
1407 } | |
1408 | |
1409 LIR_Opr result = new_register(t); | |
1410 __ move((LIR_Opr)c, result); | |
1411 _constants.append(c); | |
1412 _reg_for_constants.append(result); | |
1413 return result; | |
1414 } | |
1415 | |
1416 // Various barriers | |
1417 | |
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1418 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1419 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1420 // Do the pre-write barrier, if any. |
1421 switch (_bs->kind()) { | |
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1422 #if INCLUDE_ALL_GCS |
342 | 1423 case BarrierSet::G1SATBCT: |
1424 case BarrierSet::G1SATBCTLogging: | |
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1425 G1SATBCardTableModRef_pre_barrier(addr_opr, pre_val, do_load, patch, info); |
342 | 1426 break; |
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1427 #endif // INCLUDE_ALL_GCS |
342 | 1428 case BarrierSet::CardTableModRef: |
1429 case BarrierSet::CardTableExtension: | |
1430 // No pre barriers | |
1431 break; | |
1432 case BarrierSet::ModRef: | |
1433 case BarrierSet::Other: | |
1434 // No pre barriers | |
1435 break; | |
1436 default : | |
1437 ShouldNotReachHere(); | |
1438 | |
1439 } | |
1440 } | |
1441 | |
0 | 1442 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
342 | 1443 switch (_bs->kind()) { |
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1444 #if INCLUDE_ALL_GCS |
342 | 1445 case BarrierSet::G1SATBCT: |
1446 case BarrierSet::G1SATBCTLogging: | |
1447 G1SATBCardTableModRef_post_barrier(addr, new_val); | |
1448 break; | |
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1449 #endif // INCLUDE_ALL_GCS |
0 | 1450 case BarrierSet::CardTableModRef: |
1451 case BarrierSet::CardTableExtension: | |
1452 CardTableModRef_post_barrier(addr, new_val); | |
1453 break; | |
1454 case BarrierSet::ModRef: | |
1455 case BarrierSet::Other: | |
1456 // No post barriers | |
1457 break; | |
1458 default : | |
1459 ShouldNotReachHere(); | |
1460 } | |
1461 } | |
1462 | |
342 | 1463 //////////////////////////////////////////////////////////////////////// |
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1464 #if INCLUDE_ALL_GCS |
342 | 1465 |
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1466 void LIRGenerator::G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1467 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1468 // First we test whether marking is in progress. |
1469 BasicType flag_type; | |
1470 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
1471 flag_type = T_INT; | |
1472 } else { | |
1473 guarantee(in_bytes(PtrQueue::byte_width_of_active()) == 1, | |
1474 "Assumption"); | |
1475 flag_type = T_BYTE; | |
1476 } | |
1477 LIR_Opr thrd = getThreadPointer(); | |
1478 LIR_Address* mark_active_flag_addr = | |
1479 new LIR_Address(thrd, | |
1480 in_bytes(JavaThread::satb_mark_queue_offset() + | |
1481 PtrQueue::byte_offset_of_active()), | |
1482 flag_type); | |
1483 // Read the marking-in-progress flag. | |
1484 LIR_Opr flag_val = new_register(T_INT); | |
1485 __ load(mark_active_flag_addr, flag_val); | |
1486 __ cmp(lir_cond_notEqual, flag_val, LIR_OprFact::intConst(0)); | |
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1487 |
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1488 LIR_PatchCode pre_val_patch_code = lir_patch_none; |
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1489 |
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1490 CodeStub* slow; |
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1491 |
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1492 if (do_load) { |
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1493 assert(pre_val == LIR_OprFact::illegalOpr, "sanity"); |
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1494 assert(addr_opr != LIR_OprFact::illegalOpr, "sanity"); |
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1495 |
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1496 if (patch) |
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1497 pre_val_patch_code = lir_patch_normal; |
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1498 |
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1499 pre_val = new_register(T_OBJECT); |
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1500 |
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1501 if (!addr_opr->is_address()) { |
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1502 assert(addr_opr->is_register(), "must be"); |
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1503 addr_opr = LIR_OprFact::address(new LIR_Address(addr_opr, T_OBJECT)); |
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1504 } |
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1505 slow = new G1PreBarrierStub(addr_opr, pre_val, pre_val_patch_code, info); |
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1506 } else { |
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1507 assert(addr_opr == LIR_OprFact::illegalOpr, "sanity"); |
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1508 assert(pre_val->is_register(), "must be"); |
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1509 assert(pre_val->type() == T_OBJECT, "must be an object"); |
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1510 assert(info == NULL, "sanity"); |
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1511 |
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1512 slow = new G1PreBarrierStub(pre_val); |
342 | 1513 } |
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1514 |
342 | 1515 __ branch(lir_cond_notEqual, T_INT, slow); |
1516 __ branch_destination(slow->continuation()); | |
1517 } | |
1518 | |
1519 void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { | |
1520 // If the "new_val" is a constant NULL, no barrier is necessary. | |
1521 if (new_val->is_constant() && | |
1522 new_val->as_constant_ptr()->as_jobject() == NULL) return; | |
1523 | |
1524 if (!new_val->is_register()) { | |
1572 | 1525 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1526 if (new_val->is_constant()) { |
1527 __ move(new_val, new_val_reg); | |
1528 } else { | |
1529 __ leal(new_val, new_val_reg); | |
1530 } | |
1531 new_val = new_val_reg; | |
1532 } | |
1533 assert(new_val->is_register(), "must be a register at this point"); | |
1534 | |
1535 if (addr->is_address()) { | |
1536 LIR_Address* address = addr->as_address_ptr(); | |
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1537 LIR_Opr ptr = new_pointer_register(); |
342 | 1538 if (!address->index()->is_valid() && address->disp() == 0) { |
1539 __ move(address->base(), ptr); | |
1540 } else { | |
1541 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1542 __ leal(addr, ptr); | |
1543 } | |
1544 addr = ptr; | |
1545 } | |
1546 assert(addr->is_register(), "must be a register at this point"); | |
1547 | |
1548 LIR_Opr xor_res = new_pointer_register(); | |
1549 LIR_Opr xor_shift_res = new_pointer_register(); | |
1550 if (TwoOperandLIRForm ) { | |
1551 __ move(addr, xor_res); | |
1552 __ logical_xor(xor_res, new_val, xor_res); | |
1553 __ move(xor_res, xor_shift_res); | |
1554 __ unsigned_shift_right(xor_shift_res, | |
1555 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1556 xor_shift_res, | |
1557 LIR_OprDesc::illegalOpr()); | |
1558 } else { | |
1559 __ logical_xor(addr, new_val, xor_res); | |
1560 __ unsigned_shift_right(xor_res, | |
1561 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1562 xor_shift_res, | |
1563 LIR_OprDesc::illegalOpr()); | |
1564 } | |
1565 | |
1566 if (!new_val->is_register()) { | |
1572 | 1567 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1568 __ leal(new_val, new_val_reg); |
1569 new_val = new_val_reg; | |
1570 } | |
1571 assert(new_val->is_register(), "must be a register at this point"); | |
1572 | |
1573 __ cmp(lir_cond_notEqual, xor_shift_res, LIR_OprFact::intptrConst(NULL_WORD)); | |
1574 | |
1575 CodeStub* slow = new G1PostBarrierStub(addr, new_val); | |
1572 | 1576 __ branch(lir_cond_notEqual, LP64_ONLY(T_LONG) NOT_LP64(T_INT), slow); |
342 | 1577 __ branch_destination(slow->continuation()); |
1578 } | |
1579 | |
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1580 #endif // INCLUDE_ALL_GCS |
342 | 1581 //////////////////////////////////////////////////////////////////////// |
1582 | |
0 | 1583 void LIRGenerator::CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
1584 | |
342 | 1585 assert(sizeof(*((CardTableModRefBS*)_bs)->byte_map_base) == sizeof(jbyte), "adjust this code"); |
1586 LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base); | |
0 | 1587 if (addr->is_address()) { |
1588 LIR_Address* address = addr->as_address_ptr(); | |
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1589 // ptr cannot be an object because we use this barrier for array card marks |
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1590 // and addr can point in the middle of an array. |
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1591 LIR_Opr ptr = new_pointer_register(); |
0 | 1592 if (!address->index()->is_valid() && address->disp() == 0) { |
1593 __ move(address->base(), ptr); | |
1594 } else { | |
1595 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1596 __ leal(addr, ptr); | |
1597 } | |
1598 addr = ptr; | |
1599 } | |
1600 assert(addr->is_register(), "must be a register at this point"); | |
1601 | |
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1602 #ifdef ARM |
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1603 // TODO: ARM - move to platform-dependent code |
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1604 LIR_Opr tmp = FrameMap::R14_opr; |
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1605 if (VM_Version::supports_movw()) { |
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1606 __ move((LIR_Opr)card_table_base, tmp); |
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1607 } else { |
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1608 __ move(new LIR_Address(FrameMap::Rthread_opr, in_bytes(JavaThread::card_table_base_offset()), T_ADDRESS), tmp); |
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1609 } |
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1610 |
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1611 CardTableModRefBS* ct = (CardTableModRefBS*)_bs; |
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1612 LIR_Address *card_addr = new LIR_Address(tmp, addr, (LIR_Address::Scale) -CardTableModRefBS::card_shift, 0, T_BYTE); |
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1613 if(((int)ct->byte_map_base & 0xff) == 0) { |
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1614 __ move(tmp, card_addr); |
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1615 } else { |
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1616 LIR_Opr tmp_zero = new_register(T_INT); |
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1617 __ move(LIR_OprFact::intConst(0), tmp_zero); |
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1618 __ move(tmp_zero, card_addr); |
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1619 } |
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1620 #else // ARM |
0 | 1621 LIR_Opr tmp = new_pointer_register(); |
1622 if (TwoOperandLIRForm) { | |
1623 __ move(addr, tmp); | |
1624 __ unsigned_shift_right(tmp, CardTableModRefBS::card_shift, tmp); | |
1625 } else { | |
1626 __ unsigned_shift_right(addr, CardTableModRefBS::card_shift, tmp); | |
1627 } | |
1628 if (can_inline_as_constant(card_table_base)) { | |
1629 __ move(LIR_OprFact::intConst(0), | |
1630 new LIR_Address(tmp, card_table_base->as_jint(), T_BYTE)); | |
1631 } else { | |
1632 __ move(LIR_OprFact::intConst(0), | |
1633 new LIR_Address(tmp, load_constant(card_table_base), | |
1634 T_BYTE)); | |
1635 } | |
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1636 #endif // ARM |
0 | 1637 } |
1638 | |
1639 | |
1640 //------------------------field access-------------------------------------- | |
1641 | |
1642 // Comment copied form templateTable_i486.cpp | |
1643 // ---------------------------------------------------------------------------- | |
1644 // Volatile variables demand their effects be made known to all CPU's in | |
1645 // order. Store buffers on most chips allow reads & writes to reorder; the | |
1646 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
1647 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
1648 // reorder volatile references, the hardware also must not reorder them). | |
1649 // | |
1650 // According to the new Java Memory Model (JMM): | |
1651 // (1) All volatiles are serialized wrt to each other. | |
1652 // ALSO reads & writes act as aquire & release, so: | |
1653 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
1654 // the read float up to before the read. It's OK for non-volatile memory refs | |
1655 // that happen before the volatile read to float down below it. | |
1656 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
1657 // that happen BEFORE the write float down to after the write. It's OK for | |
1658 // non-volatile memory refs that happen after the volatile write to float up | |
1659 // before it. | |
1660 // | |
1661 // We only put in barriers around volatile refs (they are expensive), not | |
1662 // _between_ memory refs (that would require us to track the flavor of the | |
1663 // previous memory refs). Requirements (2) and (3) require some barriers | |
1664 // before volatile stores and after volatile loads. These nearly cover | |
1665 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
1666 // case is placed after volatile-stores although it could just as well go | |
1667 // before volatile-loads. | |
1668 | |
1669 | |
1670 void LIRGenerator::do_StoreField(StoreField* x) { | |
1671 bool needs_patching = x->needs_patching(); | |
1672 bool is_volatile = x->field()->is_volatile(); | |
1673 BasicType field_type = x->field_type(); | |
1674 bool is_oop = (field_type == T_ARRAY || field_type == T_OBJECT); | |
1675 | |
1676 CodeEmitInfo* info = NULL; | |
1677 if (needs_patching) { | |
1678 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1679 info = state_for(x, x->state_before()); | |
1680 } else if (x->needs_null_check()) { | |
1681 NullCheck* nc = x->explicit_null_check(); | |
1682 if (nc == NULL) { | |
1819 | 1683 info = state_for(x); |
0 | 1684 } else { |
1685 info = state_for(nc); | |
1686 } | |
1687 } | |
1688 | |
1689 | |
1690 LIRItem object(x->obj(), this); | |
1691 LIRItem value(x->value(), this); | |
1692 | |
1693 object.load_item(); | |
1694 | |
1695 if (is_volatile || needs_patching) { | |
1696 // load item if field is volatile (fewer special cases for volatiles) | |
1697 // load item if field not initialized | |
1698 // load item if field not constant | |
1699 // because of code patching we cannot inline constants | |
1700 if (field_type == T_BYTE || field_type == T_BOOLEAN) { | |
1701 value.load_byte_item(); | |
1702 } else { | |
1703 value.load_item(); | |
1704 } | |
1705 } else { | |
1706 value.load_for_store(field_type); | |
1707 } | |
1708 | |
1709 set_no_result(x); | |
1710 | |
1819 | 1711 #ifndef PRODUCT |
0 | 1712 if (PrintNotLoaded && needs_patching) { |
1713 tty->print_cr(" ###class not loaded at store_%s bci %d", | |
1819 | 1714 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1715 } |
1819 | 1716 #endif |
0 | 1717 |
1718 if (x->needs_null_check() && | |
1719 (needs_patching || | |
1720 MacroAssembler::needs_explicit_null_check(x->offset()))) { | |
1721 // emit an explicit null check because the offset is too large | |
1722 __ null_check(object.result(), new CodeEmitInfo(info)); | |
1723 } | |
1724 | |
1725 LIR_Address* address; | |
1726 if (needs_patching) { | |
1727 // we need to patch the offset in the instruction so don't allow | |
1728 // generate_address to try to be smart about emitting the -1. | |
1729 // Otherwise the patching code won't know how to find the | |
1730 // instruction to patch. | |
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1731 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1732 } else { |
1733 address = generate_address(object.result(), x->offset(), field_type); | |
1734 } | |
1735 | |
1736 if (is_volatile && os::is_MP()) { | |
1737 __ membar_release(); | |
1738 } | |
1739 | |
342 | 1740 if (is_oop) { |
1741 // Do the pre-write barrier, if any. | |
1742 pre_barrier(LIR_OprFact::address(address), | |
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1743 LIR_OprFact::illegalOpr /* pre_val */, |
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1744 true /* do_load*/, |
342 | 1745 needs_patching, |
1746 (info ? new CodeEmitInfo(info) : NULL)); | |
1747 } | |
1748 | |
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1749 if (is_volatile && !needs_patching) { |
0 | 1750 volatile_field_store(value.result(), address, info); |
1751 } else { | |
1752 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1753 __ store(value.result(), address, info, patch_code); | |
1754 } | |
1755 | |
1756 if (is_oop) { | |
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1757 // Store to object so mark the card of the header |
0 | 1758 post_barrier(object.result(), value.result()); |
1759 } | |
1760 | |
1761 if (is_volatile && os::is_MP()) { | |
1762 __ membar(); | |
1763 } | |
1764 } | |
1765 | |
1766 | |
1767 void LIRGenerator::do_LoadField(LoadField* x) { | |
1768 bool needs_patching = x->needs_patching(); | |
1769 bool is_volatile = x->field()->is_volatile(); | |
1770 BasicType field_type = x->field_type(); | |
1771 | |
1772 CodeEmitInfo* info = NULL; | |
1773 if (needs_patching) { | |
1774 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1775 info = state_for(x, x->state_before()); | |
1776 } else if (x->needs_null_check()) { | |
1777 NullCheck* nc = x->explicit_null_check(); | |
1778 if (nc == NULL) { | |
1819 | 1779 info = state_for(x); |
0 | 1780 } else { |
1781 info = state_for(nc); | |
1782 } | |
1783 } | |
1784 | |
1785 LIRItem object(x->obj(), this); | |
1786 | |
1787 object.load_item(); | |
1788 | |
1819 | 1789 #ifndef PRODUCT |
0 | 1790 if (PrintNotLoaded && needs_patching) { |
1791 tty->print_cr(" ###class not loaded at load_%s bci %d", | |
1819 | 1792 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1793 } |
1819 | 1794 #endif |
0 | 1795 |
8860 | 1796 bool stress_deopt = StressLoopInvariantCodeMotion && info && info->deoptimize_on_exception(); |
0 | 1797 if (x->needs_null_check() && |
1798 (needs_patching || | |
8860 | 1799 MacroAssembler::needs_explicit_null_check(x->offset()) || |
1800 stress_deopt)) { | |
1801 LIR_Opr obj = object.result(); | |
1802 if (stress_deopt) { | |
1803 obj = new_register(T_OBJECT); | |
1804 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1805 } | |
0 | 1806 // emit an explicit null check because the offset is too large |
8860 | 1807 __ null_check(obj, new CodeEmitInfo(info)); |
0 | 1808 } |
1809 | |
1810 LIR_Opr reg = rlock_result(x, field_type); | |
1811 LIR_Address* address; | |
1812 if (needs_patching) { | |
1813 // we need to patch the offset in the instruction so don't allow | |
1814 // generate_address to try to be smart about emitting the -1. | |
1815 // Otherwise the patching code won't know how to find the | |
1816 // instruction to patch. | |
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1817 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1818 } else { |
1819 address = generate_address(object.result(), x->offset(), field_type); | |
1820 } | |
1821 | |
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1822 if (is_volatile && !needs_patching) { |
0 | 1823 volatile_field_load(address, reg, info); |
1824 } else { | |
1825 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1826 __ load(address, reg, info, patch_code); | |
1827 } | |
1828 | |
1829 if (is_volatile && os::is_MP()) { | |
1830 __ membar_acquire(); | |
1831 } | |
1832 } | |
1833 | |
1834 | |
1835 //------------------------java.nio.Buffer.checkIndex------------------------ | |
1836 | |
1837 // int java.nio.Buffer.checkIndex(int) | |
1838 void LIRGenerator::do_NIOCheckIndex(Intrinsic* x) { | |
1839 // NOTE: by the time we are in checkIndex() we are guaranteed that | |
1840 // the buffer is non-null (because checkIndex is package-private and | |
1841 // only called from within other methods in the buffer). | |
1842 assert(x->number_of_arguments() == 2, "wrong type"); | |
1843 LIRItem buf (x->argument_at(0), this); | |
1844 LIRItem index(x->argument_at(1), this); | |
1845 buf.load_item(); | |
1846 index.load_item(); | |
1847 | |
1848 LIR_Opr result = rlock_result(x); | |
1849 if (GenerateRangeChecks) { | |
1850 CodeEmitInfo* info = state_for(x); | |
1851 CodeStub* stub = new RangeCheckStub(info, index.result(), true); | |
1852 if (index.result()->is_constant()) { | |
1853 cmp_mem_int(lir_cond_belowEqual, buf.result(), java_nio_Buffer::limit_offset(), index.result()->as_jint(), info); | |
1854 __ branch(lir_cond_belowEqual, T_INT, stub); | |
1855 } else { | |
1856 cmp_reg_mem(lir_cond_aboveEqual, index.result(), buf.result(), | |
1857 java_nio_Buffer::limit_offset(), T_INT, info); | |
1858 __ branch(lir_cond_aboveEqual, T_INT, stub); | |
1859 } | |
1860 __ move(index.result(), result); | |
1861 } else { | |
1862 // Just load the index into the result register | |
1863 __ move(index.result(), result); | |
1864 } | |
1865 } | |
1866 | |
1867 | |
1868 //------------------------array access-------------------------------------- | |
1869 | |
1870 | |
1871 void LIRGenerator::do_ArrayLength(ArrayLength* x) { | |
1872 LIRItem array(x->array(), this); | |
1873 array.load_item(); | |
1874 LIR_Opr reg = rlock_result(x); | |
1875 | |
1876 CodeEmitInfo* info = NULL; | |
1877 if (x->needs_null_check()) { | |
1878 NullCheck* nc = x->explicit_null_check(); | |
1879 if (nc == NULL) { | |
1880 info = state_for(x); | |
1881 } else { | |
1882 info = state_for(nc); | |
1883 } | |
8860 | 1884 if (StressLoopInvariantCodeMotion && info->deoptimize_on_exception()) { |
1885 LIR_Opr obj = new_register(T_OBJECT); | |
1886 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1887 __ null_check(obj, new CodeEmitInfo(info)); | |
1888 } | |
0 | 1889 } |
1890 __ load(new LIR_Address(array.result(), arrayOopDesc::length_offset_in_bytes(), T_INT), reg, info, lir_patch_none); | |
1891 } | |
1892 | |
1893 | |
1894 void LIRGenerator::do_LoadIndexed(LoadIndexed* x) { | |
1895 bool use_length = x->length() != NULL; | |
1896 LIRItem array(x->array(), this); | |
1897 LIRItem index(x->index(), this); | |
1898 LIRItem length(this); | |
8860 | 1899 bool needs_range_check = x->compute_needs_range_check(); |
1900 | |
1901 if (use_length && needs_range_check) { | |
1902 length.set_instruction(x->length()); | |
1903 length.load_item(); | |
0 | 1904 } |
1905 | |
1906 array.load_item(); | |
1907 if (index.is_constant() && can_inline_as_constant(x->index())) { | |
1908 // let it be a constant | |
1909 index.dont_load_item(); | |
1910 } else { | |
1911 index.load_item(); | |
1912 } | |
1913 | |
1914 CodeEmitInfo* range_check_info = state_for(x); | |
1915 CodeEmitInfo* null_check_info = NULL; | |
1916 if (x->needs_null_check()) { | |
1917 NullCheck* nc = x->explicit_null_check(); | |
1918 if (nc != NULL) { | |
1919 null_check_info = state_for(nc); | |
1920 } else { | |
1921 null_check_info = range_check_info; | |
1922 } | |
8860 | 1923 if (StressLoopInvariantCodeMotion && null_check_info->deoptimize_on_exception()) { |
1924 LIR_Opr obj = new_register(T_OBJECT); | |
1925 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1926 __ null_check(obj, new CodeEmitInfo(null_check_info)); | |
1927 } | |
0 | 1928 } |
1929 | |
1930 // emit array address setup early so it schedules better | |
1931 LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), false); | |
1932 | |
1933 if (GenerateRangeChecks && needs_range_check) { | |
8860 | 1934 if (StressLoopInvariantCodeMotion && range_check_info->deoptimize_on_exception()) { |
1935 __ branch(lir_cond_always, T_ILLEGAL, new RangeCheckStub(range_check_info, index.result())); | |
1936 } else if (use_length) { | |
0 | 1937 // TODO: use a (modified) version of array_range_check that does not require a |
1938 // constant length to be loaded to a register | |
1939 __ cmp(lir_cond_belowEqual, length.result(), index.result()); | |
1940 __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result())); | |
1941 } else { | |
1942 array_range_check(array.result(), index.result(), null_check_info, range_check_info); | |
1943 // The range check performs the null check, so clear it out for the load | |
1944 null_check_info = NULL; | |
1945 } | |
1946 } | |
1947 | |
1948 __ move(array_addr, rlock_result(x, x->elt_type()), null_check_info); | |
1949 } | |
1950 | |
1951 | |
1952 void LIRGenerator::do_NullCheck(NullCheck* x) { | |
1953 if (x->can_trap()) { | |
1954 LIRItem value(x->obj(), this); | |
1955 value.load_item(); | |
1956 CodeEmitInfo* info = state_for(x); | |
1957 __ null_check(value.result(), info); | |
1958 } | |
1959 } | |
1960 | |
1961 | |
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1962 void LIRGenerator::do_TypeCast(TypeCast* x) { |
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1963 LIRItem value(x->obj(), this); |
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1964 value.load_item(); |
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1965 // the result is the same as from the node we are casting |
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1966 set_result(x, value.result()); |
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1967 } |
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1968 |
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1969 |
0 | 1970 void LIRGenerator::do_Throw(Throw* x) { |
1971 LIRItem exception(x->exception(), this); | |
1972 exception.load_item(); | |
1973 set_no_result(x); | |
1974 LIR_Opr exception_opr = exception.result(); | |
1975 CodeEmitInfo* info = state_for(x, x->state()); | |
1976 | |
1977 #ifndef PRODUCT | |
1978 if (PrintC1Statistics) { | |
1783 | 1979 increment_counter(Runtime1::throw_count_address(), T_INT); |
0 | 1980 } |
1981 #endif | |
1982 | |
1983 // check if the instruction has an xhandler in any of the nested scopes | |
1984 bool unwind = false; | |
1985 if (info->exception_handlers()->length() == 0) { | |
1986 // this throw is not inside an xhandler | |
1987 unwind = true; | |
1988 } else { | |
1989 // get some idea of the throw type | |
1990 bool type_is_exact = true; | |
1991 ciType* throw_type = x->exception()->exact_type(); | |
1992 if (throw_type == NULL) { | |
1993 type_is_exact = false; | |
1994 throw_type = x->exception()->declared_type(); | |
1995 } | |
1996 if (throw_type != NULL && throw_type->is_instance_klass()) { | |
1997 ciInstanceKlass* throw_klass = (ciInstanceKlass*)throw_type; | |
1998 unwind = !x->exception_handlers()->could_catch(throw_klass, type_is_exact); | |
1999 } | |
2000 } | |
2001 | |
2002 // do null check before moving exception oop into fixed register | |
2003 // to avoid a fixed interval with an oop during the null check. | |
2004 // Use a copy of the CodeEmitInfo because debug information is | |
2005 // different for null_check and throw. | |
2006 if (GenerateCompilerNullChecks && | |
2007 (x->exception()->as_NewInstance() == NULL && x->exception()->as_ExceptionObject() == NULL)) { | |
2008 // if the exception object wasn't created using new then it might be null. | |
1819 | 2009 __ null_check(exception_opr, new CodeEmitInfo(info, x->state()->copy(ValueStack::ExceptionState, x->state()->bci()))); |
0 | 2010 } |
2011 | |
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2012 if (compilation()->env()->jvmti_can_post_on_exceptions()) { |
0 | 2013 // we need to go through the exception lookup path to get JVMTI |
2014 // notification done | |
2015 unwind = false; | |
2016 } | |
2017 | |
2018 // move exception oop into fixed register | |
2019 __ move(exception_opr, exceptionOopOpr()); | |
2020 | |
2021 if (unwind) { | |
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2022 __ unwind_exception(exceptionOopOpr()); |
0 | 2023 } else { |
2024 __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info); | |
2025 } | |
2026 } | |
2027 | |
2028 | |
2029 void LIRGenerator::do_RoundFP(RoundFP* x) { | |
2030 LIRItem input(x->input(), this); | |
2031 input.load_item(); | |
2032 LIR_Opr input_opr = input.result(); | |
2033 assert(input_opr->is_register(), "why round if value is not in a register?"); | |
2034 assert(input_opr->is_single_fpu() || input_opr->is_double_fpu(), "input should be floating-point value"); | |
2035 if (input_opr->is_single_fpu()) { | |
2036 set_result(x, round_item(input_opr)); // This code path not currently taken | |
2037 } else { | |
2038 LIR_Opr result = new_register(T_DOUBLE); | |
2039 set_vreg_flag(result, must_start_in_memory); | |
2040 __ roundfp(input_opr, LIR_OprFact::illegalOpr, result); | |
2041 set_result(x, result); | |
2042 } | |
2043 } | |
2044 | |
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2045 // Here UnsafeGetRaw may have x->base() and x->index() be int or long |
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2046 // on both 64 and 32 bits. Expecting x->base() to be always long on 64bit. |
0 | 2047 void LIRGenerator::do_UnsafeGetRaw(UnsafeGetRaw* x) { |
2048 LIRItem base(x->base(), this); | |
2049 LIRItem idx(this); | |
2050 | |
2051 base.load_item(); | |
2052 if (x->has_index()) { | |
2053 idx.set_instruction(x->index()); | |
2054 idx.load_nonconstant(); | |
2055 } | |
2056 | |
2057 LIR_Opr reg = rlock_result(x, x->basic_type()); | |
2058 | |
2059 int log2_scale = 0; | |
2060 if (x->has_index()) { | |
2061 log2_scale = x->log2_scale(); | |
2062 } | |
2063 | |
2064 assert(!x->has_index() || idx.value() == x->index(), "should match"); | |
2065 | |
2066 LIR_Opr base_op = base.result(); | |
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2067 LIR_Opr index_op = idx.result(); |
0 | 2068 #ifndef _LP64 |
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2069 if (base_op->type() == T_LONG) { |
0 | 2070 base_op = new_register(T_INT); |
2071 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
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2072 } |
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2073 if (x->has_index()) { |
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2074 if (index_op->type() == T_LONG) { |
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2075 LIR_Opr long_index_op = index_op; |
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2076 if (index_op->is_constant()) { |
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2077 long_index_op = new_register(T_LONG); |
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2078 __ move(index_op, long_index_op); |
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2079 } |
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2080 index_op = new_register(T_INT); |
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2081 __ convert(Bytecodes::_l2i, long_index_op, index_op); |
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2082 } else { |
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2083 assert(x->index()->type()->tag() == intTag, "must be"); |
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2084 } |
0 | 2085 } |
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2086 // At this point base and index should be all ints. |
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2087 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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2088 assert(!x->has_index() || index_op->type() == T_INT, "index should be an int"); |
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2089 #else |
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2090 if (x->has_index()) { |
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2091 if (index_op->type() == T_INT) { |
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2092 if (!index_op->is_constant()) { |
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2093 index_op = new_register(T_LONG); |
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2094 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
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2095 } |
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2096 } else { |
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2097 assert(index_op->type() == T_LONG, "must be"); |
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2098 if (index_op->is_constant()) { |
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2099 index_op = new_register(T_LONG); |
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2100 __ move(idx.result(), index_op); |
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2101 } |
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|
2102 } |
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|
2103 } |
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2104 // At this point base is a long non-constant |
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2105 // Index is a long register or a int constant. |
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2106 // We allow the constant to stay an int because that would allow us a more compact encoding by |
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2107 // embedding an immediate offset in the address expression. If we have a long constant, we have to |
a60a1309a03a
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2108 // move it into a register first. |
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2109 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a long non-constant"); |
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2110 assert(!x->has_index() || (index_op->type() == T_INT && index_op->is_constant()) || |
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2111 (index_op->type() == T_LONG && !index_op->is_constant()), "unexpected index type"); |
0 | 2112 #endif |
2113 | |
2114 BasicType dst_type = x->basic_type(); | |
2115 | |
2116 LIR_Address* addr; | |
2117 if (index_op->is_constant()) { | |
2118 assert(log2_scale == 0, "must not have a scale"); | |
20491
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2119 assert(index_op->type() == T_INT, "only int constants supported"); |
0 | 2120 addr = new LIR_Address(base_op, index_op->as_jint(), dst_type); |
2121 } else { | |
304 | 2122 #ifdef X86 |
0 | 2123 addr = new LIR_Address(base_op, index_op, LIR_Address::Scale(log2_scale), 0, dst_type); |
1681
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|
2124 #elif defined(ARM) |
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|
2125 addr = generate_address(base_op, index_op, log2_scale, 0, dst_type); |
0 | 2126 #else |
2127 if (index_op->is_illegal() || log2_scale == 0) { | |
2128 addr = new LIR_Address(base_op, index_op, dst_type); | |
2129 } else { | |
1060 | 2130 LIR_Opr tmp = new_pointer_register(); |
0 | 2131 __ shift_left(index_op, log2_scale, tmp); |
2132 addr = new LIR_Address(base_op, tmp, dst_type); | |
2133 } | |
2134 #endif | |
2135 } | |
2136 | |
2137 if (x->may_be_unaligned() && (dst_type == T_LONG || dst_type == T_DOUBLE)) { | |
2138 __ unaligned_move(addr, reg); | |
2139 } else { | |
2002 | 2140 if (dst_type == T_OBJECT && x->is_wide()) { |
2141 __ move_wide(addr, reg); | |
2142 } else { | |
2143 __ move(addr, reg); | |
2144 } | |
0 | 2145 } |
2146 } | |
2147 | |
2148 | |
2149 void LIRGenerator::do_UnsafePutRaw(UnsafePutRaw* x) { | |
2150 int log2_scale = 0; | |
2151 BasicType type = x->basic_type(); | |
2152 | |
2153 if (x->has_index()) { | |
2154 log2_scale = x->log2_scale(); | |
2155 } | |
2156 | |
2157 LIRItem base(x->base(), this); | |
2158 LIRItem value(x->value(), this); | |
2159 LIRItem idx(this); | |
2160 | |
2161 base.load_item(); | |
2162 if (x->has_index()) { | |
2163 idx.set_instruction(x->index()); | |
2164 idx.load_item(); | |
2165 } | |
2166 | |
2167 if (type == T_BYTE || type == T_BOOLEAN) { | |
2168 value.load_byte_item(); | |
2169 } else { | |
2170 value.load_item(); | |
2171 } | |
2172 | |
2173 set_no_result(x); | |
2174 | |
2175 LIR_Opr base_op = base.result(); | |
20491
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2176 LIR_Opr index_op = idx.result(); |
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2177 |
0 | 2178 #ifndef _LP64 |
20519
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|
2179 if (base_op->type() == T_LONG) { |
0 | 2180 base_op = new_register(T_INT); |
2181 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
20491
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|
2182 } |
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|
2183 if (x->has_index()) { |
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|
2184 if (index_op->type() == T_LONG) { |
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|
2185 index_op = new_register(T_INT); |
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2186 __ convert(Bytecodes::_l2i, idx.result(), index_op); |
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2187 } |
0 | 2188 } |
20491
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2189 // At this point base and index should be all ints and not constants |
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|
2190 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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|
2191 assert(!x->has_index() || (index_op->type() == T_INT && !index_op->is_constant()), "index should be an non-constant int"); |
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|
2192 #else |
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|
2193 if (x->has_index()) { |
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|
2194 if (index_op->type() == T_INT) { |
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|
2195 index_op = new_register(T_LONG); |
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|
2196 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
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|
2197 } |
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|
2198 } |
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|
2199 // At this point base and index are long and non-constant |
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|
2200 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a non-constant long"); |
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|
2201 assert(!x->has_index() || (index_op->type() == T_LONG && !index_op->is_constant()), "index must be a non-constant long"); |
0 | 2202 #endif |
2203 | |
2204 if (log2_scale != 0) { | |
2205 // temporary fix (platform dependent code without shift on Intel would be better) | |
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2206 // TODO: ARM also allows embedded shift in the address |
0 | 2207 __ shift_left(index_op, log2_scale, index_op); |
2208 } | |
2209 | |
2210 LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type()); | |
2211 __ move(value.result(), addr); | |
2212 } | |
2213 | |
2214 | |
2215 void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) { | |
2216 BasicType type = x->basic_type(); | |
2217 LIRItem src(x->object(), this); | |
2218 LIRItem off(x->offset(), this); | |
2219 | |
2220 off.load_item(); | |
2221 src.load_item(); | |
2222 | |
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2223 LIR_Opr value = rlock_result(x, x->basic_type()); |
09aad8452938
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|
2224 |
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|
2225 get_Object_unsafe(value, src.result(), off.result(), type, x->is_volatile()); |
3249
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|
2226 |
8001
db9981fd3124
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|
2227 #if INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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2228 // We might be reading the value of the referent field of a |
e1162778c1c8
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|
2229 // Reference object in order to attach it back to the live |
e1162778c1c8
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|
2230 // object graph. If G1 is enabled then we need to record |
e1162778c1c8
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|
2231 // the value that is being returned in an SATB log buffer. |
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|
2232 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2233 // 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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|
2234 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2235 // if (offset == java_lang_ref_Reference::referent_offset) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2236 // if (src != NULL) { |
e1162778c1c8
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|
2237 // if (klass(src)->reference_type() != REF_NONE) { |
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|
2238 // pre_barrier(..., value, ...); |
3249
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|
2239 // } |
e1162778c1c8
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|
2240 // } |
e1162778c1c8
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|
2241 // } |
e1162778c1c8
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|
2242 |
e1162778c1c8
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|
2243 if (UseG1GC && type == T_OBJECT) { |
6615
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2244 bool gen_pre_barrier = true; // Assume we need to generate pre_barrier. |
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|
2245 bool gen_offset_check = true; // Assume we need to generate the offset guard. |
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|
2246 bool gen_source_check = true; // Assume we need to check the src object for null. |
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|
2247 bool gen_type_check = true; // Assume we need to check the reference_type. |
3249
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|
2248 |
e1162778c1c8
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|
2249 if (off.is_constant()) { |
3254
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|
2250 jlong off_con = (off.type()->is_int() ? |
59766fd005ff
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|
2251 (jlong) off.get_jint_constant() : |
59766fd005ff
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|
2252 off.get_jlong_constant()); |
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|
2253 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
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|
2254 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2255 if (off_con != (jlong) java_lang_ref_Reference::referent_offset) { |
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
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|
2256 // The constant offset is something other than referent_offset. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
2357
diff
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|
2257 // We can skip generating/checking the remaining guards and |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2258 // skip generation of the code stub. |
6615
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|
2259 gen_pre_barrier = false; |
3249
e1162778c1c8
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johnc
parents:
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|
2260 } else { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2261 // The constant offset is the same as referent_offset - |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2262 // 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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parents:
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|
2263 gen_offset_check = false; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
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|
2264 } |
e1162778c1c8
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parents:
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diff
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|
2265 } |
e1162778c1c8
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johnc
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|
2266 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2267 // We don't need to generate stub if the source object is an array |
6615
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|
2268 if (gen_pre_barrier && src.type()->is_array()) { |
09aad8452938
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|
2269 gen_pre_barrier = false; |
3249
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|
2270 } |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2271 |
6615
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|
2272 if (gen_pre_barrier) { |
3249
e1162778c1c8
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johnc
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|
2273 // We still need to continue with the checks. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2274 if (src.is_constant()) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2275 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
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|
2276 guarantee(src_con != NULL, "no source constant"); |
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2277 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2278 if (src_con->is_null_object()) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2279 // 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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|
2280 // generating the code stub. |
6615
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|
2281 gen_pre_barrier = false; |
3249
e1162778c1c8
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|
2282 } else { |
e1162778c1c8
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|
2283 // 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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|
2284 // the slow stub - but we don't need to generate the runtime |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2285 // null object check. |
e1162778c1c8
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|
2286 gen_source_check = false; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2287 } |
e1162778c1c8
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|
2288 } |
e1162778c1c8
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|
2289 } |
6615
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|
2290 if (gen_pre_barrier && !PatchALot) { |
09aad8452938
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|
2291 // Can the klass of object be statically determined to be |
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|
2292 // a sub-class of Reference? |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2293 ciType* type = src.value()->declared_type(); |
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|
2294 if ((type != NULL) && type->is_loaded()) { |
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|
2295 if (type->is_subtype_of(compilation()->env()->Reference_klass())) { |
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|
2296 gen_type_check = false; |
09aad8452938
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|
2297 } else if (type->is_klass() && |
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2298 !compilation()->env()->Object_klass()->is_subtype_of(type->as_klass())) { |
09aad8452938
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|
2299 // Not Reference and not Object klass. |
09aad8452938
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|
2300 gen_pre_barrier = false; |
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|
2301 } |
09aad8452938
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|
2302 } |
09aad8452938
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|
2303 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2304 |
09aad8452938
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|
2305 if (gen_pre_barrier) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2306 LabelObj* Lcont = new LabelObj(); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
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|
2307 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2308 // We can have generate one runtime check here. Let's start with |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2309 // the offset check. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2310 if (gen_offset_check) { |
6615
09aad8452938
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kvn
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|
2311 // 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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|
2312 // 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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|
2313 // 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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|
2314 // 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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|
2315 // a reg-reg compare. |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2316 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2317 LIR_Opr referent_off; |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2318 |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2319 if (off.type()->is_int()) { |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2320 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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|
2321 } else { |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
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|
2322 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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|
2323 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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|
2324 __ 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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|
2325 } |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2326 __ 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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|
2327 __ branch(lir_cond_notEqual, as_BasicType(off.type()), Lcont->label()); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2328 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2329 if (gen_source_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2330 // 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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|
2331 // if (source == null) -> continue |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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parents:
6266
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|
2332 __ 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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|
2333 __ branch(lir_cond_equal, T_OBJECT, Lcont->label()); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
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|
2334 } |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
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|
2335 LIR_Opr src_klass = new_register(T_OBJECT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2336 if (gen_type_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2337 // We have determined that offset == referent_offset && src != null. |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2338 // if (src->_klass->_reference_type == REF_NONE) -> continue |
12000
8d77d02828d9
8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
twisti
parents:
11080
diff
changeset
|
2339 __ 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
|
2340 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
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|
2341 LIR_Opr reference_type = new_register(T_INT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2342 __ move(reference_type_addr, reference_type); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2343 __ 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
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|
2344 __ branch(lir_cond_equal, T_INT, Lcont->label()); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2345 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2346 { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2347 // 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
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|
2348 // 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
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6266
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|
2349 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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|
2350 value /* pre_val */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2351 false /* do_load */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2352 false /* patch */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2353 NULL /* info */); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2354 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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diff
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|
2355 __ branch_destination(Lcont->label()); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2356 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2357 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
changeset
|
2358 #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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|
2359 |
0 | 2360 if (x->is_volatile() && os::is_MP()) __ membar_acquire(); |
2361 } | |
2362 | |
2363 | |
2364 void LIRGenerator::do_UnsafePutObject(UnsafePutObject* x) { | |
2365 BasicType type = x->basic_type(); | |
2366 LIRItem src(x->object(), this); | |
2367 LIRItem off(x->offset(), this); | |
2368 LIRItem data(x->value(), this); | |
2369 | |
2370 src.load_item(); | |
2371 if (type == T_BOOLEAN || type == T_BYTE) { | |
2372 data.load_byte_item(); | |
2373 } else { | |
2374 data.load_item(); | |
2375 } | |
2376 off.load_item(); | |
2377 | |
2378 set_no_result(x); | |
2379 | |
2380 if (x->is_volatile() && os::is_MP()) __ membar_release(); | |
2381 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
|
2382 if (x->is_volatile() && os::is_MP()) __ membar(); |
0 | 2383 } |
2384 | |
2385 | |
2386 void LIRGenerator::do_UnsafePrefetch(UnsafePrefetch* x, bool is_store) { | |
2387 LIRItem src(x->object(), this); | |
2388 LIRItem off(x->offset(), this); | |
2389 | |
2390 src.load_item(); | |
2391 if (off.is_constant() && can_inline_as_constant(x->offset())) { | |
2392 // let it be a constant | |
2393 off.dont_load_item(); | |
2394 } else { | |
2395 off.load_item(); | |
2396 } | |
2397 | |
2398 set_no_result(x); | |
2399 | |
2400 LIR_Address* addr = generate_address(src.result(), off.result(), 0, 0, T_BYTE); | |
2401 __ prefetch(addr, is_store); | |
2402 } | |
2403 | |
2404 | |
2405 void LIRGenerator::do_UnsafePrefetchRead(UnsafePrefetchRead* x) { | |
2406 do_UnsafePrefetch(x, false); | |
2407 } | |
2408 | |
2409 | |
2410 void LIRGenerator::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) { | |
2411 do_UnsafePrefetch(x, true); | |
2412 } | |
2413 | |
2414 | |
2415 void LIRGenerator::do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux) { | |
2416 int lng = x->length(); | |
2417 | |
2418 for (int i = 0; i < lng; i++) { | |
2419 SwitchRange* one_range = x->at(i); | |
2420 int low_key = one_range->low_key(); | |
2421 int high_key = one_range->high_key(); | |
2422 BlockBegin* dest = one_range->sux(); | |
2423 if (low_key == high_key) { | |
2424 __ cmp(lir_cond_equal, value, low_key); | |
2425 __ branch(lir_cond_equal, T_INT, dest); | |
2426 } else if (high_key - low_key == 1) { | |
2427 __ cmp(lir_cond_equal, value, low_key); | |
2428 __ branch(lir_cond_equal, T_INT, dest); | |
2429 __ cmp(lir_cond_equal, value, high_key); | |
2430 __ branch(lir_cond_equal, T_INT, dest); | |
2431 } else { | |
2432 LabelObj* L = new LabelObj(); | |
2433 __ cmp(lir_cond_less, value, low_key); | |
4816 | 2434 __ branch(lir_cond_less, T_INT, L->label()); |
0 | 2435 __ cmp(lir_cond_lessEqual, value, high_key); |
2436 __ branch(lir_cond_lessEqual, T_INT, dest); | |
2437 __ branch_destination(L->label()); | |
2438 } | |
2439 } | |
2440 __ jump(default_sux); | |
2441 } | |
2442 | |
2443 | |
2444 SwitchRangeArray* LIRGenerator::create_lookup_ranges(TableSwitch* x) { | |
2445 SwitchRangeList* res = new SwitchRangeList(); | |
2446 int len = x->length(); | |
2447 if (len > 0) { | |
2448 BlockBegin* sux = x->sux_at(0); | |
2449 int key = x->lo_key(); | |
2450 BlockBegin* default_sux = x->default_sux(); | |
2451 SwitchRange* range = new SwitchRange(key, sux); | |
2452 for (int i = 0; i < len; i++, key++) { | |
2453 BlockBegin* new_sux = x->sux_at(i); | |
2454 if (sux == new_sux) { | |
2455 // still in same range | |
2456 range->set_high_key(key); | |
2457 } else { | |
2458 // skip tests which explicitly dispatch to the default | |
2459 if (sux != default_sux) { | |
2460 res->append(range); | |
2461 } | |
2462 range = new SwitchRange(key, new_sux); | |
2463 } | |
2464 sux = new_sux; | |
2465 } | |
2466 if (res->length() == 0 || res->last() != range) res->append(range); | |
2467 } | |
2468 return res; | |
2469 } | |
2470 | |
2471 | |
2472 // we expect the keys to be sorted by increasing value | |
2473 SwitchRangeArray* LIRGenerator::create_lookup_ranges(LookupSwitch* x) { | |
2474 SwitchRangeList* res = new SwitchRangeList(); | |
2475 int len = x->length(); | |
2476 if (len > 0) { | |
2477 BlockBegin* default_sux = x->default_sux(); | |
2478 int key = x->key_at(0); | |
2479 BlockBegin* sux = x->sux_at(0); | |
2480 SwitchRange* range = new SwitchRange(key, sux); | |
2481 for (int i = 1; i < len; i++) { | |
2482 int new_key = x->key_at(i); | |
2483 BlockBegin* new_sux = x->sux_at(i); | |
2484 if (key+1 == new_key && sux == new_sux) { | |
2485 // still in same range | |
2486 range->set_high_key(new_key); | |
2487 } else { | |
2488 // skip tests which explicitly dispatch to the default | |
2489 if (range->sux() != default_sux) { | |
2490 res->append(range); | |
2491 } | |
2492 range = new SwitchRange(new_key, new_sux); | |
2493 } | |
2494 key = new_key; | |
2495 sux = new_sux; | |
2496 } | |
2497 if (res->length() == 0 || res->last() != range) res->append(range); | |
2498 } | |
2499 return res; | |
2500 } | |
2501 | |
2502 | |
2503 void LIRGenerator::do_TableSwitch(TableSwitch* x) { | |
2504 LIRItem tag(x->tag(), this); | |
2505 tag.load_item(); | |
2506 set_no_result(x); | |
2507 | |
2508 if (x->is_safepoint()) { | |
2509 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2510 } | |
2511 | |
2512 // move values into phi locations | |
2513 move_to_phi(x->state()); | |
2514 | |
2515 int lo_key = x->lo_key(); | |
2516 int hi_key = x->hi_key(); | |
2517 int len = x->length(); | |
2518 LIR_Opr value = tag.result(); | |
2519 if (UseTableRanges) { | |
2520 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2521 } else { | |
2522 for (int i = 0; i < len; i++) { | |
2523 __ cmp(lir_cond_equal, value, i + lo_key); | |
2524 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2525 } | |
2526 __ jump(x->default_sux()); | |
2527 } | |
2528 } | |
2529 | |
2530 | |
2531 void LIRGenerator::do_LookupSwitch(LookupSwitch* x) { | |
2532 LIRItem tag(x->tag(), this); | |
2533 tag.load_item(); | |
2534 set_no_result(x); | |
2535 | |
2536 if (x->is_safepoint()) { | |
2537 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2538 } | |
2539 | |
2540 // move values into phi locations | |
2541 move_to_phi(x->state()); | |
2542 | |
2543 LIR_Opr value = tag.result(); | |
2544 if (UseTableRanges) { | |
2545 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2546 } else { | |
2547 int len = x->length(); | |
2548 for (int i = 0; i < len; i++) { | |
2549 __ cmp(lir_cond_equal, value, x->key_at(i)); | |
2550 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2551 } | |
2552 __ jump(x->default_sux()); | |
2553 } | |
2554 } | |
2555 | |
2556 | |
2557 void LIRGenerator::do_Goto(Goto* x) { | |
2558 set_no_result(x); | |
2559 | |
2560 if (block()->next()->as_OsrEntry()) { | |
2561 // need to free up storage used for OSR entry point | |
2562 LIR_Opr osrBuffer = block()->next()->operand(); | |
2563 BasicTypeList signature; | |
2564 signature.append(T_INT); | |
2565 CallingConvention* cc = frame_map()->c_calling_convention(&signature); | |
2566 __ move(osrBuffer, cc->args()->at(0)); | |
2567 __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_end), | |
2568 getThreadTemp(), LIR_OprFact::illegalOpr, cc->args()); | |
2569 } | |
2570 | |
2571 if (x->is_safepoint()) { | |
2572 ValueStack* state = x->state_before() ? x->state_before() : x->state(); | |
2573 | |
2574 // increment backedge counter if needed | |
1783 | 2575 CodeEmitInfo* info = state_for(x, state); |
3997
940513efe83a
7097679: Tiered: events with bad bci to Gotos reduced from Ifs
iveresov
parents:
3964
diff
changeset
|
2576 increment_backedge_counter(info, x->profiled_bci()); |
0 | 2577 CodeEmitInfo* safepoint_info = state_for(x, state); |
2578 __ safepoint(safepoint_poll_register(), safepoint_info); | |
2579 } | |
2580 | |
1783 | 2581 // Gotos can be folded Ifs, handle this case. |
2582 if (x->should_profile()) { | |
2583 ciMethod* method = x->profiled_method(); | |
2584 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
parents:
2002
diff
changeset
|
2585 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
|
2586 assert(md != NULL, "Sanity"); |
1783 | 2587 ciProfileData* data = md->bci_to_data(x->profiled_bci()); |
2588 assert(data != NULL, "must have profiling data"); | |
2589 int offset; | |
2590 if (x->direction() == Goto::taken) { | |
2591 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2592 offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
2593 } else if (x->direction() == Goto::not_taken) { | |
2594 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2595 offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
2596 } else { | |
2597 assert(data->is_JumpData(), "need JumpData for branches"); | |
2598 offset = md->byte_offset_of_slot(data, JumpData::taken_offset()); | |
2599 } | |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2600 LIR_Opr md_reg = new_register(T_METADATA); |
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2601 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 2602 |
2603 increment_counter(new LIR_Address(md_reg, offset, | |
2604 NOT_LP64(T_INT) LP64_ONLY(T_LONG)), DataLayout::counter_increment); | |
2605 } | |
2606 | |
0 | 2607 // emit phi-instruction move after safepoint since this simplifies |
2608 // describing the state as the safepoint. | |
2609 move_to_phi(x->state()); | |
2610 | |
2611 __ jump(x->default_sux()); | |
2612 } | |
2613 | |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2614 /** |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2615 * Emit profiling code if needed for arguments, parameters, return value types |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2616 * |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2617 * @param md MDO the code will update at runtime |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2618 * @param md_base_offset common offset in the MDO for this profile and subsequent ones |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2619 * @param md_offset offset in the MDO (on top of md_base_offset) for this profile |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2620 * @param profiled_k current profile |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2621 * @param obj IR node for the object to be profiled |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2622 * @param mdp register to hold the pointer inside the MDO (md + md_base_offset). |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2623 * Set once we find an update to make and use for next ones. |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2624 * @param not_null true if we know obj cannot be null |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2625 * @param signature_at_call_k signature at call for obj |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2626 * @param callee_signature_k signature of callee for obj |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2627 * at call and callee signatures differ at method handle call |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2628 * @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
|
2629 */ |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2630 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
roland
parents:
12969
diff
changeset
|
2631 Value obj, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2632 ciKlass* callee_signature_k) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2633 ciKlass* result = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2634 bool do_null = !not_null && !TypeEntries::was_null_seen(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2635 bool do_update = !TypeEntries::is_type_unknown(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2636 // 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
|
2637 // unknown: nothing we can do to improve profiling |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2638 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2639 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2640 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2641 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2642 ciKlass* exact_klass = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2643 Compilation* comp = Compilation::current(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2644 if (do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2645 // 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
|
2646 // the klass from the object can be avoided |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2647 ciType* type = obj->exact_type(); |
12875
d13d7aba8c12
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roland
parents:
12868
diff
changeset
|
2648 if (type == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2649 type = obj->declared_type(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2650 type = comp->cha_exact_type(type); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
2651 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2652 assert(type == NULL || type->is_klass(), "type should be class"); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2653 exact_klass = (type != NULL && type->is_loaded()) ? (ciKlass*)type : NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
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|
2654 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2655 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
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|
2656 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
2657 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2658 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2659 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2660 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2661 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2662 ciKlass* exact_signature_k = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2663 if (do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2664 // Is the type from the signature exact (the only one possible)? |
13078
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8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
12969
diff
changeset
|
2665 exact_signature_k = signature_at_call_k->exact_klass(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2666 if (exact_signature_k == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
12969
diff
changeset
|
2667 exact_signature_k = comp->cha_exact_type(signature_at_call_k); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2668 } else { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2669 result = exact_signature_k; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2670 // Known statically. No need to emit any code: prevent |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2671 // LIR_Assembler::emit_profile_type() from emitting useless code |
d13d7aba8c12
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roland
parents:
12868
diff
changeset
|
2672 profiled_k = ciTypeEntries::with_status(result, profiled_k); |
d13d7aba8c12
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parents:
12868
diff
changeset
|
2673 } |
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2674 // 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
|
2675 // different if exact_klass is loaded after the ciObject for |
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2676 // exact_signature_k is created. |
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2677 if (exact_klass == NULL && exact_signature_k != NULL && exact_klass != exact_signature_k) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2678 // sometimes the type of the signature is better than the best type |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
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|
2679 // the compiler has |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
2680 exact_klass = exact_signature_k; |
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8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2681 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2682 if (callee_signature_k != NULL && |
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8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
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|
2683 callee_signature_k != signature_at_call_k) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2684 ciKlass* improved_klass = callee_signature_k->exact_klass(); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
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|
2685 if (improved_klass == NULL) { |
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8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2686 improved_klass = comp->cha_exact_type(callee_signature_k); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
12969
diff
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|
2687 } |
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
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17900
diff
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|
2688 if (exact_klass == NULL && improved_klass != NULL && exact_klass != improved_klass) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
12969
diff
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|
2689 exact_klass = exact_signature_k; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2690 } |
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parents:
12969
diff
changeset
|
2691 } |
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8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
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diff
changeset
|
2692 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
12875
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8023657: New type profiling points: arguments to call
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parents:
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diff
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|
2693 } |
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diff
changeset
|
2694 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2695 if (!do_null && !do_update) { |
d13d7aba8c12
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parents:
12868
diff
changeset
|
2696 return result; |
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parents:
12868
diff
changeset
|
2697 } |
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parents:
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diff
changeset
|
2698 |
d13d7aba8c12
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diff
changeset
|
2699 if (mdp == LIR_OprFact::illegalOpr) { |
d13d7aba8c12
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parents:
12868
diff
changeset
|
2700 mdp = new_register(T_METADATA); |
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diff
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|
2701 __ metadata2reg(md->constant_encoding(), mdp); |
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8023657: New type profiling points: arguments to call
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parents:
12868
diff
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|
2702 if (md_base_offset != 0) { |
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diff
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|
2703 LIR_Address* base_type_address = new LIR_Address(mdp, md_base_offset, T_ADDRESS); |
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diff
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|
2704 mdp = new_pointer_register(); |
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|
2705 __ leal(LIR_OprFact::address(base_type_address), mdp); |
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8023657: New type profiling points: arguments to call
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diff
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|
2706 } |
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diff
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|
2707 } |
13078
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diff
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|
2708 LIRItem value(obj, this); |
12875
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diff
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|
2709 value.load_item(); |
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diff
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|
2710 __ profile_type(new LIR_Address(mdp, md_offset, T_METADATA), |
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diff
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|
2711 value.result(), exact_klass, profiled_k, new_pointer_register(), not_null, exact_signature_k != NULL); |
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diff
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|
2712 return result; |
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diff
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|
2713 } |
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diff
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|
2714 |
12962
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8026251: New type profiling points: parameters to methods
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diff
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|
2715 // profile parameters on entry to the root of the compilation |
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|
2716 void LIRGenerator::profile_parameters(Base* x) { |
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8026251: New type profiling points: parameters to methods
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diff
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|
2717 if (compilation()->profile_parameters()) { |
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diff
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|
2718 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); |
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diff
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|
2719 ciMethodData* md = scope()->method()->method_data_or_null(); |
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8026251: New type profiling points: parameters to methods
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diff
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|
2720 assert(md != NULL, "Sanity"); |
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diff
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|
2721 |
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8026251: New type profiling points: parameters to methods
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diff
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|
2722 if (md->parameters_type_data() != NULL) { |
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diff
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|
2723 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
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|
2724 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
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diff
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|
2725 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
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|
2726 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
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12955
diff
changeset
|
2727 LIR_Opr src = args->at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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parents:
12955
diff
changeset
|
2728 assert(!src->is_illegal(), "check"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2729 BasicType t = src->type(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
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|
2730 if (t == T_OBJECT || t == T_ARRAY) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
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|
2731 intptr_t profiled_k = parameters->type(j); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
changeset
|
2732 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
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|
2733 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
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|
2734 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
|
2735 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
|
2736 // 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
|
2737 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2738 md->set_parameter_type(j, exact); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2739 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2740 j++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2741 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2742 java_index += type2size[t]; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2743 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2744 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2745 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2746 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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12955
diff
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|
2747 |
0 | 2748 void LIRGenerator::do_Base(Base* x) { |
2749 __ std_entry(LIR_OprFact::illegalOpr); | |
2750 // Emit moves from physical registers / stack slots to virtual registers | |
2751 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); | |
2752 IRScope* irScope = compilation()->hir()->top_scope(); | |
2753 int java_index = 0; | |
2754 for (int i = 0; i < args->length(); i++) { | |
2755 LIR_Opr src = args->at(i); | |
2756 assert(!src->is_illegal(), "check"); | |
2757 BasicType t = src->type(); | |
2758 | |
2759 // Types which are smaller than int are passed as int, so | |
2760 // correct the type which passed. | |
2761 switch (t) { | |
2762 case T_BYTE: | |
2763 case T_BOOLEAN: | |
2764 case T_SHORT: | |
2765 case T_CHAR: | |
2766 t = T_INT; | |
2767 break; | |
2768 } | |
2769 | |
2770 LIR_Opr dest = new_register(t); | |
2771 __ move(src, dest); | |
2772 | |
2773 // Assign new location to Local instruction for this local | |
2774 Local* local = x->state()->local_at(java_index)->as_Local(); | |
2775 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
|
2776 #ifndef __SOFTFP__ |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2777 // The java calling convention passes double as long and float as int. |
0 | 2778 assert(as_ValueType(t)->tag() == local->type()->tag(), "check"); |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2779 #endif // __SOFTFP__ |
0 | 2780 local->set_operand(dest); |
2781 _instruction_for_operand.at_put_grow(dest->vreg_number(), local, NULL); | |
2782 java_index += type2size[t]; | |
2783 } | |
2784 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
579
diff
changeset
|
2785 if (compilation()->env()->dtrace_method_probes()) { |
0 | 2786 BasicTypeList signature; |
2002 | 2787 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
|
2788 signature.append(T_METADATA); // Method* |
0 | 2789 LIR_OprList* args = new LIR_OprList(); |
2790 args->append(getThreadPointer()); | |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2791 LIR_Opr meth = new_register(T_METADATA); |
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2792 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 2793 args->append(meth); |
2794 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), voidType, NULL); | |
2795 } | |
2796 | |
2797 if (method()->is_synchronized()) { | |
2798 LIR_Opr obj; | |
2799 if (method()->is_static()) { | |
2800 obj = new_register(T_OBJECT); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
819
diff
changeset
|
2801 __ oop2reg(method()->holder()->java_mirror()->constant_encoding(), obj); |
0 | 2802 } else { |
2803 Local* receiver = x->state()->local_at(0)->as_Local(); | |
2804 assert(receiver != NULL, "must already exist"); | |
2805 obj = receiver->operand(); | |
2806 } | |
2807 assert(obj->is_valid(), "must be valid"); | |
2808 | |
2809 if (method()->is_synchronized() && GenerateSynchronizationCode) { | |
2810 LIR_Opr lock = new_register(T_INT); | |
2811 __ load_stack_address_monitor(0, lock); | |
2812 | |
8860 | 2813 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, x->check_flag(Instruction::DeoptimizeOnException)); |
0 | 2814 CodeStub* slow_path = new MonitorEnterStub(obj, lock, info); |
2815 | |
2816 // receiver is guaranteed non-NULL so don't need CodeEmitInfo | |
2817 __ lock_object(syncTempOpr(), obj, lock, new_register(T_OBJECT), slow_path, NULL); | |
2818 } | |
2819 } | |
2820 | |
2821 // increment invocation counters if needed | |
1783 | 2822 if (!method()->is_accessor()) { // Accessors do not have MDOs, so no counting. |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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12955
diff
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|
2823 profile_parameters(x); |
8860 | 2824 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, false); |
1783 | 2825 increment_invocation_counter(info); |
2826 } | |
0 | 2827 |
2828 // all blocks with a successor must end with an unconditional jump | |
2829 // to the successor even if they are consecutive | |
2830 __ jump(x->default_sux()); | |
2831 } | |
2832 | |
2833 | |
2834 void LIRGenerator::do_OsrEntry(OsrEntry* x) { | |
2835 // construct our frame and model the production of incoming pointer | |
2836 // to the OSR buffer. | |
2837 __ osr_entry(LIR_Assembler::osrBufferPointer()); | |
2838 LIR_Opr result = rlock_result(x); | |
2839 __ move(LIR_Assembler::osrBufferPointer(), result); | |
2840 } | |
2841 | |
2842 | |
2843 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
|
2844 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
|
2845 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
|
2846 for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) { |
0 | 2847 LIRItem* param = args->at(i); |
2848 LIR_Opr loc = arg_list->at(i); | |
2849 if (loc->is_register()) { | |
2850 param->load_item_force(loc); | |
2851 } else { | |
2852 LIR_Address* addr = loc->as_address_ptr(); | |
2853 param->load_for_store(addr->type()); | |
2002 | 2854 if (addr->type() == T_OBJECT) { |
2855 __ move_wide(param->result(), addr); | |
2856 } else | |
2857 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
2858 __ unaligned_move(param->result(), addr); | |
2859 } else { | |
2860 __ move(param->result(), addr); | |
2861 } | |
0 | 2862 } |
2863 } | |
2864 | |
2865 if (x->has_receiver()) { | |
2866 LIRItem* receiver = args->at(0); | |
2867 LIR_Opr loc = arg_list->at(0); | |
2868 if (loc->is_register()) { | |
2869 receiver->load_item_force(loc); | |
2870 } else { | |
2871 assert(loc->is_address(), "just checking"); | |
2872 receiver->load_for_store(T_OBJECT); | |
2002 | 2873 __ move_wide(receiver->result(), loc->as_address_ptr()); |
0 | 2874 } |
2875 } | |
2876 } | |
2877 | |
2878 | |
2879 // Visits all arguments, returns appropriate items without loading them | |
2880 LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) { | |
2881 LIRItemList* argument_items = new LIRItemList(); | |
2882 if (x->has_receiver()) { | |
2883 LIRItem* receiver = new LIRItem(x->receiver(), this); | |
2884 argument_items->append(receiver); | |
2885 } | |
2886 for (int i = 0; i < x->number_of_arguments(); i++) { | |
2887 LIRItem* param = new LIRItem(x->argument_at(i), this); | |
2888 argument_items->append(param); | |
2889 } | |
2890 return argument_items; | |
2891 } | |
2892 | |
2893 | |
2894 // The invoke with receiver has following phases: | |
2895 // a) traverse and load/lock receiver; | |
2896 // b) traverse all arguments -> item-array (invoke_visit_argument) | |
2897 // c) push receiver on stack | |
2898 // d) load each of the items and push on stack | |
2899 // e) unlock receiver | |
2900 // f) move receiver into receiver-register %o0 | |
2901 // g) lock result registers and emit call operation | |
2902 // | |
2903 // Before issuing a call, we must spill-save all values on stack | |
2904 // that are in caller-save register. "spill-save" moves thos registers | |
2905 // either in a free callee-save register or spills them if no free | |
2906 // callee save register is available. | |
2907 // | |
2908 // The problem is where to invoke spill-save. | |
2909 // - if invoked between e) and f), we may lock callee save | |
2910 // register in "spill-save" that destroys the receiver register | |
2911 // before f) is executed | |
2912 // - if we rearange the f) to be earlier, by loading %o0, it | |
2913 // may destroy a value on the stack that is currently in %o0 | |
2914 // and is waiting to be spilled | |
2915 // - if we keep the receiver locked while doing spill-save, | |
2916 // we cannot spill it as it is spill-locked | |
2917 // | |
2918 void LIRGenerator::do_Invoke(Invoke* x) { | |
2919 CallingConvention* cc = frame_map()->java_calling_convention(x->signature(), true); | |
2920 | |
2921 LIR_OprList* arg_list = cc->args(); | |
2922 LIRItemList* args = invoke_visit_arguments(x); | |
2923 LIR_Opr receiver = LIR_OprFact::illegalOpr; | |
2924 | |
2925 // setup result register | |
2926 LIR_Opr result_register = LIR_OprFact::illegalOpr; | |
2927 if (x->type() != voidType) { | |
2928 result_register = result_register_for(x->type()); | |
2929 } | |
2930 | |
2931 CodeEmitInfo* info = state_for(x, x->state()); | |
2932 | |
2933 invoke_load_arguments(x, args, arg_list); | |
2934 | |
2935 if (x->has_receiver()) { | |
2936 args->at(0)->load_item_force(LIR_Assembler::receiverOpr()); | |
2937 receiver = args->at(0)->result(); | |
2938 } | |
2939 | |
2940 // emit invoke code | |
2941 bool optimized = x->target_is_loaded() && x->target_is_final(); | |
2942 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | |
2943 | |
1564 | 2944 // JSR 292 |
2945 // Preserve the SP over MethodHandle call sites. | |
2946 ciMethod* target = x->target(); | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2947 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
|
2948 target->is_method_handle_intrinsic() || |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2949 target->is_compiled_lambda_form()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2950 if (is_method_handle_invoke) { |
1564 | 2951 info->set_is_method_handle_invoke(true); |
2952 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); | |
2953 } | |
2954 | |
0 | 2955 switch (x->code()) { |
2956 case Bytecodes::_invokestatic: | |
1564 | 2957 __ call_static(target, result_register, |
0 | 2958 SharedRuntime::get_resolve_static_call_stub(), |
2959 arg_list, info); | |
2960 break; | |
2961 case Bytecodes::_invokespecial: | |
2962 case Bytecodes::_invokevirtual: | |
2963 case Bytecodes::_invokeinterface: | |
2964 // for final target we still produce an inline cache, in order | |
2965 // to be able to call mixed mode | |
2966 if (x->code() == Bytecodes::_invokespecial || optimized) { | |
1564 | 2967 __ call_opt_virtual(target, receiver, result_register, |
0 | 2968 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
2969 arg_list, info); | |
2970 } else if (x->vtable_index() < 0) { | |
1564 | 2971 __ call_icvirtual(target, receiver, result_register, |
0 | 2972 SharedRuntime::get_resolve_virtual_call_stub(), |
2973 arg_list, info); | |
2974 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2975 int entry_offset = InstanceKlass::vtable_start_offset() + x->vtable_index() * vtableEntry::size(); |
0 | 2976 int vtable_offset = entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); |
1564 | 2977 __ call_virtual(target, receiver, result_register, vtable_offset, arg_list, info); |
0 | 2978 } |
2979 break; | |
1295 | 2980 case Bytecodes::_invokedynamic: { |
1564 | 2981 __ 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
|
2982 SharedRuntime::get_resolve_static_call_stub(), |
1295 | 2983 arg_list, info); |
2984 break; | |
2985 } | |
0 | 2986 default: |
6145
e2fe93124108
7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
twisti
parents:
6143
diff
changeset
|
2987 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
0 | 2988 break; |
2989 } | |
2990 | |
1564 | 2991 // JSR 292 |
2992 // Restore the SP after MethodHandle call sites. | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2993 if (is_method_handle_invoke) { |
1564 | 2994 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
2995 } | |
2996 | |
0 | 2997 if (x->type()->is_float() || x->type()->is_double()) { |
2998 // Force rounding of results from non-strictfp when in strictfp | |
2999 // scope (or when we don't know the strictness of the callee, to | |
3000 // be safe.) | |
3001 if (method()->is_strict()) { | |
3002 if (!x->target_is_loaded() || !x->target_is_strictfp()) { | |
3003 result_register = round_item(result_register); | |
3004 } | |
3005 } | |
3006 } | |
3007 | |
3008 if (result_register->is_valid()) { | |
3009 LIR_Opr result = rlock_result(x); | |
3010 __ move(result_register, result); | |
3011 } | |
3012 } | |
3013 | |
3014 | |
3015 void LIRGenerator::do_FPIntrinsics(Intrinsic* x) { | |
3016 assert(x->number_of_arguments() == 1, "wrong type"); | |
3017 LIRItem value (x->argument_at(0), this); | |
3018 LIR_Opr reg = rlock_result(x); | |
3019 value.load_item(); | |
3020 LIR_Opr tmp = force_to_spill(value.result(), as_BasicType(x->type())); | |
3021 __ move(tmp, reg); | |
3022 } | |
3023 | |
3024 | |
3025 | |
3026 // Code for : x->x() {x->cond()} x->y() ? x->tval() : x->fval() | |
3027 void LIRGenerator::do_IfOp(IfOp* x) { | |
3028 #ifdef ASSERT | |
3029 { | |
3030 ValueTag xtag = x->x()->type()->tag(); | |
3031 ValueTag ttag = x->tval()->type()->tag(); | |
3032 assert(xtag == intTag || xtag == objectTag, "cannot handle others"); | |
3033 assert(ttag == addressTag || ttag == intTag || ttag == objectTag || ttag == longTag, "cannot handle others"); | |
3034 assert(ttag == x->fval()->type()->tag(), "cannot handle others"); | |
3035 } | |
3036 #endif | |
3037 | |
3038 LIRItem left(x->x(), this); | |
3039 LIRItem right(x->y(), this); | |
3040 left.load_item(); | |
3041 if (can_inline_as_constant(right.value())) { | |
3042 right.dont_load_item(); | |
3043 } else { | |
3044 right.load_item(); | |
3045 } | |
3046 | |
3047 LIRItem t_val(x->tval(), this); | |
3048 LIRItem f_val(x->fval(), this); | |
3049 t_val.dont_load_item(); | |
3050 f_val.dont_load_item(); | |
3051 LIR_Opr reg = rlock_result(x); | |
3052 | |
3053 __ 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
|
3054 __ cmove(lir_cond(x->cond()), t_val.result(), f_val.result(), reg, as_BasicType(x->x()->type())); |
0 | 3055 } |
3056 | |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3057 void LIRGenerator::do_RuntimeCall(address routine, int expected_arguments, Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3058 assert(x->number_of_arguments() == expected_arguments, "wrong type"); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3059 LIR_Opr reg = result_register_for(x->type()); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3060 __ call_runtime_leaf(routine, getThreadTemp(), |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3061 reg, new LIR_OprList()); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3062 LIR_Opr result = rlock_result(x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3063 __ move(reg, result); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3064 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3065 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3066 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3067 void LIRGenerator::do_ThreadIDIntrinsic(Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3068 LIR_Opr thread = getThreadPointer(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3069 LIR_Opr osthread = new_pointer_register(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3070 __ 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
|
3071 size_t thread_id_size = OSThread::thread_id_size(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3072 if (thread_id_size == (size_t) BytesPerLong) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3073 LIR_Opr id = new_register(T_LONG); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3074 __ 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
|
3075 __ convert(Bytecodes::_l2i, id, rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3076 } else if (thread_id_size == (size_t) BytesPerInt) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3077 __ 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
|
3078 } else { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3079 ShouldNotReachHere(); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3080 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3081 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3082 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3083 void LIRGenerator::do_ClassIDIntrinsic(Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3084 CodeEmitInfo* info = state_for(x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3085 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
|
3086 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
|
3087 assert(info != NULL, "must have info"); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3088 LIRItem arg(x->argument_at(1), this); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3089 arg.load_item(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3090 LIR_Opr klass = new_pointer_register(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3091 __ 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
|
3092 LIR_Opr id = new_register(T_LONG); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3093 ByteSize offset = TRACE_ID_OFFSET; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3094 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
|
3095 __ move(trace_id_addr, id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3096 __ logical_or(id, LIR_OprFact::longConst(0x01l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3097 __ store(id, trace_id_addr); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3098 __ logical_and(id, LIR_OprFact::longConst(~0x3l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3099 __ move(id, rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3100 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3101 #endif |
0 | 3102 |
3103 void LIRGenerator::do_Intrinsic(Intrinsic* x) { | |
3104 switch (x->id()) { | |
3105 case vmIntrinsics::_intBitsToFloat : | |
3106 case vmIntrinsics::_doubleToRawLongBits : | |
3107 case vmIntrinsics::_longBitsToDouble : | |
3108 case vmIntrinsics::_floatToRawIntBits : { | |
3109 do_FPIntrinsics(x); | |
3110 break; | |
3111 } | |
3112 | |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3113 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3114 case vmIntrinsics::_threadID: do_ThreadIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3115 case vmIntrinsics::_classID: do_ClassIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3116 case vmIntrinsics::_counterTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3117 do_RuntimeCall(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), 0, x); |
0 | 3118 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3119 #endif |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3120 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3121 case vmIntrinsics::_currentTimeMillis: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3122 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeMillis), 0, x); |
0 | 3123 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3124 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3125 case vmIntrinsics::_nanoTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3126 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeNanos), 0, x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3127 break; |
0 | 3128 |
3129 case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break; | |
6135 | 3130 case vmIntrinsics::_isInstance: do_isInstance(x); break; |
0 | 3131 case vmIntrinsics::_getClass: do_getClass(x); break; |
3132 case vmIntrinsics::_currentThread: do_currentThread(x); break; | |
3133 | |
3134 case vmIntrinsics::_dlog: // fall through | |
3135 case vmIntrinsics::_dlog10: // fall through | |
3136 case vmIntrinsics::_dabs: // fall through | |
3137 case vmIntrinsics::_dsqrt: // fall through | |
3138 case vmIntrinsics::_dtan: // fall through | |
3139 case vmIntrinsics::_dsin : // fall through | |
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3140 case vmIntrinsics::_dcos : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3141 case vmIntrinsics::_dexp : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3142 case vmIntrinsics::_dpow : do_MathIntrinsic(x); break; |
0 | 3143 case vmIntrinsics::_arraycopy: do_ArrayCopy(x); break; |
3144 | |
3145 // java.nio.Buffer.checkIndex | |
3146 case vmIntrinsics::_checkIndex: do_NIOCheckIndex(x); break; | |
3147 | |
3148 case vmIntrinsics::_compareAndSwapObject: | |
3149 do_CompareAndSwap(x, objectType); | |
3150 break; | |
3151 case vmIntrinsics::_compareAndSwapInt: | |
3152 do_CompareAndSwap(x, intType); | |
3153 break; | |
3154 case vmIntrinsics::_compareAndSwapLong: | |
3155 do_CompareAndSwap(x, longType); | |
3156 break; | |
3157 | |
7425 | 3158 case vmIntrinsics::_loadFence : |
3159 if (os::is_MP()) __ membar_acquire(); | |
3160 break; | |
3161 case vmIntrinsics::_storeFence: | |
3162 if (os::is_MP()) __ membar_release(); | |
3163 break; | |
3164 case vmIntrinsics::_fullFence : | |
3165 if (os::is_MP()) __ membar(); | |
3166 break; | |
3167 | |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3168 case vmIntrinsics::_Reference_get: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3169 do_Reference_get(x); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3170 break; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3171 |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3172 case vmIntrinsics::_updateCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3173 case vmIntrinsics::_updateBytesCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3174 case vmIntrinsics::_updateByteBufferCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3175 do_update_CRC32(x); |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3176 break; |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3177 |
0 | 3178 default: ShouldNotReachHere(); break; |
3179 } | |
3180 } | |
3181 | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3182 void LIRGenerator::profile_arguments(ProfileCall* x) { |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3183 if (compilation()->profile_arguments()) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3184 int bci = x->bci_of_invoke(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3185 ciMethodData* md = x->method()->method_data_or_null(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3186 ciProfileData* data = md->bci_to_data(bci); |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3187 if ((data->is_CallTypeData() && data->as_CallTypeData()->has_arguments()) || |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3188 (data->is_VirtualCallTypeData() && data->as_VirtualCallTypeData()->has_arguments())) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3189 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
|
3190 int base_offset = md->byte_offset_of_slot(data, extra); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3191 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3192 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
|
3193 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3194 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3195 int start = 0; |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3196 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
|
3197 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
|
3198 // 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
|
3199 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
|
3200 start = 1; |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3201 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3202 ciSignature* callee_signature = x->callee()->signature(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3203 // method handle call to virtual method |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3204 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
|
3205 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
|
3206 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3207 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3208 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3209 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
|
3210 ciSignatureStream signature_at_call_stream(signature_at_call); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3211 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3212 // 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
|
3213 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
|
3214 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
|
3215 ciKlass* exact = profile_type(md, base_offset, off, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3216 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
|
3217 !x->arg_needs_null_check(i+start), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3218 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
|
3219 if (exact != NULL) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3220 md->set_argument_type(bci, i, exact); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3221 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3222 } |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3223 } else { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3224 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3225 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
|
3226 int n = x->nb_profiled_args(); |
17900
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
14260
diff
changeset
|
3227 assert(MethodData::profile_parameters() && (MethodData::profile_arguments_jsr292_only() || |
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
14260
diff
changeset
|
3228 (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
|
3229 "only at JSR292 bytecodes"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3230 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3231 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3232 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3233 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3234 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3235 // profile parameters on entry to an inlined method |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3236 void LIRGenerator::profile_parameters_at_call(ProfileCall* x) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3237 if (compilation()->profile_parameters() && x->inlined()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3238 ciMethodData* md = x->callee()->method_data_or_null(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3239 if (md != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3240 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3241 if (parameters_type_data != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3242 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3243 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3244 bool has_receiver = !x->callee()->is_static(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3245 ciSignature* sig = x->callee()->signature(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3246 ciSignatureStream sig_stream(sig, has_receiver ? x->callee()->holder() : NULL); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3247 int i = 0; // to iterate on the Instructions |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3248 Value arg = x->recv(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3249 bool not_null = false; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3250 int bci = x->bci_of_invoke(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3251 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3252 // 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
|
3253 // 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
|
3254 // virtual method: the receiver is in the args list |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3255 if (arg == NULL || !Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3256 i = 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3257 arg = x->profiled_arg_at(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3258 not_null = !x->arg_needs_null_check(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3259 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3260 int k = 0; // to iterate on the profile data |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3261 for (;;) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3262 intptr_t profiled_k = parameters->type(k); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3263 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
|
3264 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
|
3265 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
|
3266 // 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
|
3267 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3268 md->set_parameter_type(k, exact); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3269 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3270 k++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3271 if (k >= parameters_type_data->number_of_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3272 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3273 int extra = 0; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3274 if (MethodData::profile_arguments() && TypeProfileParmsLimit != -1 && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3275 x->nb_profiled_args() >= TypeProfileParmsLimit && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3276 x->recv() != NULL && Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3277 extra += 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3278 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3279 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
|
3280 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3281 break; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3282 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3283 arg = x->profiled_arg_at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3284 not_null = !x->arg_needs_null_check(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3285 i++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3286 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3287 } |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3288 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3289 } |
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 |
0 | 3292 void LIRGenerator::do_ProfileCall(ProfileCall* x) { |
3293 // Need recv in a temporary register so it interferes with the other temporaries | |
3294 LIR_Opr recv = LIR_OprFact::illegalOpr; | |
3295 LIR_Opr mdo = new_register(T_OBJECT); | |
1783 | 3296 // tmp is used to hold the counters on SPARC |
3297 LIR_Opr tmp = new_pointer_register(); | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3298 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3299 if (x->nb_profiled_args() > 0) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3300 profile_arguments(x); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3301 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3302 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3303 // profile parameters on inlined method entry including receiver |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3304 if (x->recv() != NULL || x->nb_profiled_args() > 0) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3305 profile_parameters_at_call(x); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3306 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3307 |
0 | 3308 if (x->recv() != NULL) { |
3309 LIRItem value(x->recv(), this); | |
3310 value.load_item(); | |
3311 recv = new_register(T_OBJECT); | |
3312 __ move(value.result(), recv); | |
3313 } | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
3314 __ profile_call(x->method(), x->bci_of_invoke(), x->callee(), mdo, recv, tmp, x->known_holder()); |
0 | 3315 } |
3316 | |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3317 void LIRGenerator::do_ProfileReturnType(ProfileReturnType* x) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3318 int bci = x->bci_of_invoke(); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3319 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
|
3320 ciProfileData* data = md->bci_to_data(bci); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3321 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
|
3322 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
|
3323 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3324 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3325 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3326 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3327 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
|
3328 |
14260 | 3329 // The offset within the MDO of the entry to update may be too large |
3330 // to be used in load/store instructions on some platforms. So have | |
3331 // profile_type() compute the address of the profile in a register. | |
3332 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
|
3333 ret->type(), x->ret(), mdp, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3334 !x->needs_null_check(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3335 signature_at_call->return_type()->as_klass(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3336 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
|
3337 if (exact != NULL) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3338 md->set_return_type(bci, exact); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3339 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3340 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3341 |
1783 | 3342 void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) { |
3343 // We can safely ignore accessors here, since c2 will inline them anyway, | |
3344 // accessors are also always mature. | |
3345 if (!x->inlinee()->is_accessor()) { | |
3346 CodeEmitInfo* info = state_for(x, x->state(), true); | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3450
diff
changeset
|
3347 // Notify the runtime very infrequently only to take care of counter overflows |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3450
diff
changeset
|
3348 increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true); |
1783 | 3349 } |
3350 } | |
3351 | |
3352 void LIRGenerator::increment_event_counter(CodeEmitInfo* info, int bci, bool backedge) { | |
3353 int freq_log; | |
3354 int level = compilation()->env()->comp_level(); | |
3355 if (level == CompLevel_limited_profile) { | |
3356 freq_log = (backedge ? Tier2BackedgeNotifyFreqLog : Tier2InvokeNotifyFreqLog); | |
3357 } else if (level == CompLevel_full_profile) { | |
3358 freq_log = (backedge ? Tier3BackedgeNotifyFreqLog : Tier3InvokeNotifyFreqLog); | |
3359 } else { | |
3360 ShouldNotReachHere(); | |
3361 } | |
3362 // Increment the appropriate invocation/backedge counter and notify the runtime. | |
3363 increment_event_counter_impl(info, info->scope()->method(), (1 << freq_log) - 1, bci, backedge, true); | |
0 | 3364 } |
3365 | |
1783 | 3366 void LIRGenerator::increment_event_counter_impl(CodeEmitInfo* info, |
3367 ciMethod *method, int frequency, | |
3368 int bci, bool backedge, bool notify) { | |
3369 assert(frequency == 0 || is_power_of_2(frequency + 1), "Frequency must be x^2 - 1 or 0"); | |
3370 int level = _compilation->env()->comp_level(); | |
3371 assert(level > CompLevel_simple, "Shouldn't be here"); | |
3372 | |
3373 int offset = -1; | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3374 LIR_Opr counter_holder; |
1783 | 3375 if (level == CompLevel_limited_profile) { |
12868
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3376 MethodCounters* counters_adr = method->ensure_method_counters(); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3377 if (counters_adr == NULL) { |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3378 bailout("method counters allocation failed"); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3379 return; |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3380 } |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3381 counter_holder = new_pointer_register(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3382 __ 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
|
3383 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
|
3384 MethodCounters::invocation_counter_offset()); |
1783 | 3385 } 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
|
3386 counter_holder = new_register(T_METADATA); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3387 offset = in_bytes(backedge ? MethodData::backedge_counter_offset() : |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3388 MethodData::invocation_counter_offset()); |
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3389 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
|
3390 assert(md != NULL, "Sanity"); |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
3391 __ metadata2reg(md->constant_encoding(), counter_holder); |
1783 | 3392 } else { |
3393 ShouldNotReachHere(); | |
3394 } | |
3395 LIR_Address* counter = new LIR_Address(counter_holder, offset, T_INT); | |
3396 LIR_Opr result = new_register(T_INT); | |
3397 __ load(counter, result); | |
3398 __ add(result, LIR_OprFact::intConst(InvocationCounter::count_increment), result); | |
3399 __ store(result, counter); | |
3400 if (notify) { | |
3401 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
|
3402 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
|
3403 __ metadata2reg(method->constant_encoding(), meth); |
1783 | 3404 __ logical_and(result, mask, result); |
3405 __ cmp(lir_cond_equal, result, LIR_OprFact::intConst(0)); | |
3406 // The bci for info can point to cmp for if's we want the if bci | |
3407 CodeStub* overflow = new CounterOverflowStub(info, bci, meth); | |
3408 __ branch(lir_cond_equal, T_INT, overflow); | |
3409 __ branch_destination(overflow->continuation()); | |
3410 } | |
3411 } | |
0 | 3412 |
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3413 void LIRGenerator::do_RuntimeCall(RuntimeCall* x) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3414 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
|
3415 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
|
3416 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3417 if (x->pass_thread()) { |
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
3418 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
|
3419 args->append(getThreadPointer()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3420 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3421 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3422 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
|
3423 Value a = x->argument_at(i); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3424 LIRItem* item = new LIRItem(a, this); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3425 item->load_item(); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3426 args->append(item->result()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3427 signature->append(as_BasicType(a->type())); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3428 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3429 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3430 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
|
3431 if (x->type() == voidType) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3432 set_no_result(x); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3433 } else { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3434 __ move(result, rlock_result(x)); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3435 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3436 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3437 |
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3438 #ifdef ASSERT |
8860 | 3439 void LIRGenerator::do_Assert(Assert *x) { |
3440 ValueTag tag = x->x()->type()->tag(); | |
3441 If::Condition cond = x->cond(); | |
3442 | |
3443 LIRItem xitem(x->x(), this); | |
3444 LIRItem yitem(x->y(), this); | |
3445 LIRItem* xin = &xitem; | |
3446 LIRItem* yin = &yitem; | |
3447 | |
3448 assert(tag == intTag, "Only integer assertions are valid!"); | |
3449 | |
3450 xin->load_item(); | |
3451 yin->dont_load_item(); | |
3452 | |
3453 set_no_result(x); | |
3454 | |
3455 LIR_Opr left = xin->result(); | |
3456 LIR_Opr right = yin->result(); | |
3457 | |
3458 __ 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
|
3459 } |
8860 | 3460 #endif |
3461 | |
3462 void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) { | |
3463 | |
3464 | |
3465 Instruction *a = x->x(); | |
3466 Instruction *b = x->y(); | |
3467 if (!a || StressRangeCheckElimination) { | |
3468 assert(!b || StressRangeCheckElimination, "B must also be null"); | |
3469 | |
3470 CodeEmitInfo *info = state_for(x, x->state()); | |
3471 CodeStub* stub = new PredicateFailedStub(info); | |
3472 | |
3473 __ jump(stub); | |
3474 } else if (a->type()->as_IntConstant() && b->type()->as_IntConstant()) { | |
3475 int a_int = a->type()->as_IntConstant()->value(); | |
3476 int b_int = b->type()->as_IntConstant()->value(); | |
3477 | |
3478 bool ok = false; | |
3479 | |
3480 switch(x->cond()) { | |
3481 case Instruction::eql: ok = (a_int == b_int); break; | |
3482 case Instruction::neq: ok = (a_int != b_int); break; | |
3483 case Instruction::lss: ok = (a_int < b_int); break; | |
3484 case Instruction::leq: ok = (a_int <= b_int); break; | |
3485 case Instruction::gtr: ok = (a_int > b_int); break; | |
3486 case Instruction::geq: ok = (a_int >= b_int); break; | |
3487 case Instruction::aeq: ok = ((unsigned int)a_int >= (unsigned int)b_int); break; | |
3488 case Instruction::beq: ok = ((unsigned int)a_int <= (unsigned int)b_int); break; | |
3489 default: ShouldNotReachHere(); | |
3490 } | |
3491 | |
3492 if (ok) { | |
3493 | |
3494 CodeEmitInfo *info = state_for(x, x->state()); | |
3495 CodeStub* stub = new PredicateFailedStub(info); | |
3496 | |
3497 __ jump(stub); | |
3498 } | |
3499 } else { | |
3500 | |
3501 ValueTag tag = x->x()->type()->tag(); | |
3502 If::Condition cond = x->cond(); | |
3503 LIRItem xitem(x->x(), this); | |
3504 LIRItem yitem(x->y(), this); | |
3505 LIRItem* xin = &xitem; | |
3506 LIRItem* yin = &yitem; | |
3507 | |
3508 assert(tag == intTag, "Only integer deoptimizations are valid!"); | |
3509 | |
3510 xin->load_item(); | |
3511 yin->dont_load_item(); | |
3512 set_no_result(x); | |
3513 | |
3514 LIR_Opr left = xin->result(); | |
3515 LIR_Opr right = yin->result(); | |
3516 | |
3517 CodeEmitInfo *info = state_for(x, x->state()); | |
3518 CodeStub* stub = new PredicateFailedStub(info); | |
3519 | |
3520 __ cmp(lir_cond(cond), left, right); | |
3521 __ branch(lir_cond(cond), right->type(), stub); | |
3522 } | |
3523 } | |
3524 | |
3525 | |
0 | 3526 LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) { |
3527 LIRItemList args(1); | |
3528 LIRItem value(arg1, this); | |
3529 args.append(&value); | |
3530 BasicTypeList signature; | |
3531 signature.append(as_BasicType(arg1->type())); | |
3532 | |
3533 return call_runtime(&signature, &args, entry, result_type, info); | |
3534 } | |
3535 | |
3536 | |
3537 LIR_Opr LIRGenerator::call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3538 LIRItemList args(2); | |
3539 LIRItem value1(arg1, this); | |
3540 LIRItem value2(arg2, this); | |
3541 args.append(&value1); | |
3542 args.append(&value2); | |
3543 BasicTypeList signature; | |
3544 signature.append(as_BasicType(arg1->type())); | |
3545 signature.append(as_BasicType(arg2->type())); | |
3546 | |
3547 return call_runtime(&signature, &args, entry, result_type, info); | |
3548 } | |
3549 | |
3550 | |
3551 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIR_OprList* args, | |
3552 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3553 // get a result register | |
3554 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3555 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3556 if (result_type->tag() != voidTag) { | |
3557 result = new_register(result_type); | |
3558 phys_reg = result_register_for(result_type); | |
3559 } | |
3560 | |
3561 // move the arguments into the correct location | |
3562 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3563 assert(cc->length() == args->length(), "argument mismatch"); | |
3564 for (int i = 0; i < args->length(); i++) { | |
3565 LIR_Opr arg = args->at(i); | |
3566 LIR_Opr loc = cc->at(i); | |
3567 if (loc->is_register()) { | |
3568 __ move(arg, loc); | |
3569 } else { | |
3570 LIR_Address* addr = loc->as_address_ptr(); | |
3571 // if (!can_store_as_constant(arg)) { | |
3572 // LIR_Opr tmp = new_register(arg->type()); | |
3573 // __ move(arg, tmp); | |
3574 // arg = tmp; | |
3575 // } | |
3576 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3577 __ unaligned_move(arg, addr); | |
3578 } else { | |
3579 __ move(arg, addr); | |
3580 } | |
3581 } | |
3582 } | |
3583 | |
3584 if (info) { | |
3585 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3586 } else { | |
3587 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3588 } | |
3589 if (result->is_valid()) { | |
3590 __ move(phys_reg, result); | |
3591 } | |
3592 return result; | |
3593 } | |
3594 | |
3595 | |
3596 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIRItemList* args, | |
3597 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3598 // get a result register | |
3599 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3600 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3601 if (result_type->tag() != voidTag) { | |
3602 result = new_register(result_type); | |
3603 phys_reg = result_register_for(result_type); | |
3604 } | |
3605 | |
3606 // move the arguments into the correct location | |
3607 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3608 | |
3609 assert(cc->length() == args->length(), "argument mismatch"); | |
3610 for (int i = 0; i < args->length(); i++) { | |
3611 LIRItem* arg = args->at(i); | |
3612 LIR_Opr loc = cc->at(i); | |
3613 if (loc->is_register()) { | |
3614 arg->load_item_force(loc); | |
3615 } else { | |
3616 LIR_Address* addr = loc->as_address_ptr(); | |
3617 arg->load_for_store(addr->type()); | |
3618 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3619 __ unaligned_move(arg->result(), addr); | |
3620 } else { | |
3621 __ move(arg->result(), addr); | |
3622 } | |
3623 } | |
3624 } | |
3625 | |
3626 if (info) { | |
3627 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3628 } else { | |
3629 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3630 } | |
3631 if (result->is_valid()) { | |
3632 __ move(phys_reg, result); | |
3633 } | |
3634 return result; | |
3635 } | |
4966
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3636 |
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3637 void LIRGenerator::do_MemBar(MemBar* x) { |
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3638 if (os::is_MP()) { |
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3639 LIR_Code code = x->code(); |
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3640 switch(code) { |
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3641 case lir_membar_acquire : __ membar_acquire(); break; |
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3642 case lir_membar_release : __ membar_release(); break; |
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3643 case lir_membar : __ membar(); break; |
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3644 case lir_membar_loadload : __ membar_loadload(); break; |
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3645 case lir_membar_storestore: __ membar_storestore(); break; |
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3646 case lir_membar_loadstore : __ membar_loadstore(); break; |
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3647 case lir_membar_storeload : __ membar_storeload(); break; |
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3648 default : ShouldNotReachHere(); break; |
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3649 } |
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3650 } |
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3651 } |