Mercurial > hg > truffle
annotate src/share/vm/c1/c1_LIRGenerator.cpp @ 13433:769557390c43
8029415: java/lang/reflect/Method/invoke/TestPrivateInterfaceMethodReflect.java fails on all platforms with hs25-b61
Summary: Check first that a class is not a dynamically-generated bytecode associated with 1.4 reflection implementation, to emitting an ICCE of an invokespecial IMR of a method in an indirect superinterface.
Reviewed-by: acorn, hseigel
Contributed-by: lois.foltan@oracle.com
author | hseigel |
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date | Fri, 06 Dec 2013 11:33:10 -0500 |
parents | e6ba215af802 |
children | 096c224171c4 8cdf3f43f63e |
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) { |
0 | 470 if (!obj->is_loaded() || PatchALot) { |
471 assert(info != NULL, "info must be set if class is not loaded"); | |
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472 __ klass2reg_patch(NULL, r, info); |
0 | 473 } else { |
474 // no patching needed | |
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475 __ metadata2reg(obj->constant_encoding(), r); |
0 | 476 } |
477 } | |
478 | |
479 | |
480 void LIRGenerator::array_range_check(LIR_Opr array, LIR_Opr index, | |
481 CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info) { | |
482 CodeStub* stub = new RangeCheckStub(range_check_info, index); | |
483 if (index->is_constant()) { | |
484 cmp_mem_int(lir_cond_belowEqual, array, arrayOopDesc::length_offset_in_bytes(), | |
485 index->as_jint(), null_check_info); | |
486 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
487 } else { | |
488 cmp_reg_mem(lir_cond_aboveEqual, index, array, | |
489 arrayOopDesc::length_offset_in_bytes(), T_INT, null_check_info); | |
490 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
491 } | |
492 } | |
493 | |
494 | |
495 void LIRGenerator::nio_range_check(LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) { | |
496 CodeStub* stub = new RangeCheckStub(info, index, true); | |
497 if (index->is_constant()) { | |
498 cmp_mem_int(lir_cond_belowEqual, buffer, java_nio_Buffer::limit_offset(), index->as_jint(), info); | |
499 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
500 } else { | |
501 cmp_reg_mem(lir_cond_aboveEqual, index, buffer, | |
502 java_nio_Buffer::limit_offset(), T_INT, info); | |
503 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
504 } | |
505 __ move(index, result); | |
506 } | |
507 | |
508 | |
509 | |
510 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) { | |
511 LIR_Opr result_op = result; | |
512 LIR_Opr left_op = left; | |
513 LIR_Opr right_op = right; | |
514 | |
515 if (TwoOperandLIRForm && left_op != result_op) { | |
516 assert(right_op != result_op, "malformed"); | |
517 __ move(left_op, result_op); | |
518 left_op = result_op; | |
519 } | |
520 | |
521 switch(code) { | |
522 case Bytecodes::_dadd: | |
523 case Bytecodes::_fadd: | |
524 case Bytecodes::_ladd: | |
525 case Bytecodes::_iadd: __ add(left_op, right_op, result_op); break; | |
526 case Bytecodes::_fmul: | |
527 case Bytecodes::_lmul: __ mul(left_op, right_op, result_op); break; | |
528 | |
529 case Bytecodes::_dmul: | |
530 { | |
531 if (is_strictfp) { | |
532 __ mul_strictfp(left_op, right_op, result_op, tmp_op); break; | |
533 } else { | |
534 __ mul(left_op, right_op, result_op); break; | |
535 } | |
536 } | |
537 break; | |
538 | |
539 case Bytecodes::_imul: | |
540 { | |
541 bool did_strength_reduce = false; | |
542 | |
543 if (right->is_constant()) { | |
544 int c = right->as_jint(); | |
545 if (is_power_of_2(c)) { | |
546 // do not need tmp here | |
547 __ shift_left(left_op, exact_log2(c), result_op); | |
548 did_strength_reduce = true; | |
549 } else { | |
550 did_strength_reduce = strength_reduce_multiply(left_op, c, result_op, tmp_op); | |
551 } | |
552 } | |
553 // we couldn't strength reduce so just emit the multiply | |
554 if (!did_strength_reduce) { | |
555 __ mul(left_op, right_op, result_op); | |
556 } | |
557 } | |
558 break; | |
559 | |
560 case Bytecodes::_dsub: | |
561 case Bytecodes::_fsub: | |
562 case Bytecodes::_lsub: | |
563 case Bytecodes::_isub: __ sub(left_op, right_op, result_op); break; | |
564 | |
565 case Bytecodes::_fdiv: __ div (left_op, right_op, result_op); break; | |
566 // ldiv and lrem are implemented with a direct runtime call | |
567 | |
568 case Bytecodes::_ddiv: | |
569 { | |
570 if (is_strictfp) { | |
571 __ div_strictfp (left_op, right_op, result_op, tmp_op); break; | |
572 } else { | |
573 __ div (left_op, right_op, result_op); break; | |
574 } | |
575 } | |
576 break; | |
577 | |
578 case Bytecodes::_drem: | |
579 case Bytecodes::_frem: __ rem (left_op, right_op, result_op); break; | |
580 | |
581 default: ShouldNotReachHere(); | |
582 } | |
583 } | |
584 | |
585 | |
586 void LIRGenerator::arithmetic_op_int(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp) { | |
587 arithmetic_op(code, result, left, right, false, tmp); | |
588 } | |
589 | |
590 | |
591 void LIRGenerator::arithmetic_op_long(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) { | |
592 arithmetic_op(code, result, left, right, false, LIR_OprFact::illegalOpr, info); | |
593 } | |
594 | |
595 | |
596 void LIRGenerator::arithmetic_op_fpu(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp) { | |
597 arithmetic_op(code, result, left, right, is_strictfp, tmp); | |
598 } | |
599 | |
600 | |
601 void LIRGenerator::shift_op(Bytecodes::Code code, LIR_Opr result_op, LIR_Opr value, LIR_Opr count, LIR_Opr tmp) { | |
602 if (TwoOperandLIRForm && value != result_op) { | |
603 assert(count != result_op, "malformed"); | |
604 __ move(value, result_op); | |
605 value = result_op; | |
606 } | |
607 | |
608 assert(count->is_constant() || count->is_register(), "must be"); | |
609 switch(code) { | |
610 case Bytecodes::_ishl: | |
611 case Bytecodes::_lshl: __ shift_left(value, count, result_op, tmp); break; | |
612 case Bytecodes::_ishr: | |
613 case Bytecodes::_lshr: __ shift_right(value, count, result_op, tmp); break; | |
614 case Bytecodes::_iushr: | |
615 case Bytecodes::_lushr: __ unsigned_shift_right(value, count, result_op, tmp); break; | |
616 default: ShouldNotReachHere(); | |
617 } | |
618 } | |
619 | |
620 | |
621 void LIRGenerator::logic_op (Bytecodes::Code code, LIR_Opr result_op, LIR_Opr left_op, LIR_Opr right_op) { | |
622 if (TwoOperandLIRForm && left_op != result_op) { | |
623 assert(right_op != result_op, "malformed"); | |
624 __ move(left_op, result_op); | |
625 left_op = result_op; | |
626 } | |
627 | |
628 switch(code) { | |
629 case Bytecodes::_iand: | |
630 case Bytecodes::_land: __ logical_and(left_op, right_op, result_op); break; | |
631 | |
632 case Bytecodes::_ior: | |
633 case Bytecodes::_lor: __ logical_or(left_op, right_op, result_op); break; | |
634 | |
635 case Bytecodes::_ixor: | |
636 case Bytecodes::_lxor: __ logical_xor(left_op, right_op, result_op); break; | |
637 | |
638 default: ShouldNotReachHere(); | |
639 } | |
640 } | |
641 | |
642 | |
643 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) { | |
644 if (!GenerateSynchronizationCode) return; | |
645 // for slow path, use debug info for state after successful locking | |
646 CodeStub* slow_path = new MonitorEnterStub(object, lock, info); | |
647 __ load_stack_address_monitor(monitor_no, lock); | |
648 // for handling NullPointerException, use debug info representing just the lock stack before this monitorenter | |
649 __ lock_object(hdr, object, lock, scratch, slow_path, info_for_exception); | |
650 } | |
651 | |
652 | |
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653 void LIRGenerator::monitor_exit(LIR_Opr object, LIR_Opr lock, LIR_Opr new_hdr, LIR_Opr scratch, int monitor_no) { |
0 | 654 if (!GenerateSynchronizationCode) return; |
655 // setup registers | |
656 LIR_Opr hdr = lock; | |
657 lock = new_hdr; | |
658 CodeStub* slow_path = new MonitorExitStub(lock, UseFastLocking, monitor_no); | |
659 __ load_stack_address_monitor(monitor_no, lock); | |
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660 __ unlock_object(hdr, object, lock, scratch, slow_path); |
0 | 661 } |
662 | |
663 | |
664 void LIRGenerator::new_instance(LIR_Opr dst, ciInstanceKlass* klass, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info) { | |
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665 klass2reg_with_patching(klass_reg, klass, info); |
0 | 666 // If klass is not loaded we do not know if the klass has finalizers: |
667 if (UseFastNewInstance && klass->is_loaded() | |
668 && !Klass::layout_helper_needs_slow_path(klass->layout_helper())) { | |
669 | |
670 Runtime1::StubID stub_id = klass->is_initialized() ? Runtime1::fast_new_instance_id : Runtime1::fast_new_instance_init_check_id; | |
671 | |
672 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, stub_id); | |
673 | |
674 assert(klass->is_loaded(), "must be loaded"); | |
675 // allocate space for instance | |
676 assert(klass->size_helper() >= 0, "illegal instance size"); | |
677 const int instance_size = align_object_size(klass->size_helper()); | |
678 __ allocate_object(dst, scratch1, scratch2, scratch3, scratch4, | |
679 oopDesc::header_size(), instance_size, klass_reg, !klass->is_initialized(), slow_path); | |
680 } else { | |
681 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, Runtime1::new_instance_id); | |
682 __ branch(lir_cond_always, T_ILLEGAL, slow_path); | |
683 __ branch_destination(slow_path->continuation()); | |
684 } | |
685 } | |
686 | |
687 | |
688 static bool is_constant_zero(Instruction* inst) { | |
689 IntConstant* c = inst->type()->as_IntConstant(); | |
690 if (c) { | |
691 return (c->value() == 0); | |
692 } | |
693 return false; | |
694 } | |
695 | |
696 | |
697 static bool positive_constant(Instruction* inst) { | |
698 IntConstant* c = inst->type()->as_IntConstant(); | |
699 if (c) { | |
700 return (c->value() >= 0); | |
701 } | |
702 return false; | |
703 } | |
704 | |
705 | |
706 static ciArrayKlass* as_array_klass(ciType* type) { | |
707 if (type != NULL && type->is_array_klass() && type->is_loaded()) { | |
708 return (ciArrayKlass*)type; | |
709 } else { | |
710 return NULL; | |
711 } | |
712 } | |
713 | |
2446 | 714 static ciType* phi_declared_type(Phi* phi) { |
715 ciType* t = phi->operand_at(0)->declared_type(); | |
716 if (t == NULL) { | |
717 return NULL; | |
718 } | |
719 for(int i = 1; i < phi->operand_count(); i++) { | |
720 if (t != phi->operand_at(i)->declared_type()) { | |
721 return NULL; | |
722 } | |
723 } | |
724 return t; | |
725 } | |
726 | |
0 | 727 void LIRGenerator::arraycopy_helper(Intrinsic* x, int* flagsp, ciArrayKlass** expected_typep) { |
728 Instruction* src = x->argument_at(0); | |
729 Instruction* src_pos = x->argument_at(1); | |
730 Instruction* dst = x->argument_at(2); | |
731 Instruction* dst_pos = x->argument_at(3); | |
732 Instruction* length = x->argument_at(4); | |
733 | |
734 // first try to identify the likely type of the arrays involved | |
735 ciArrayKlass* expected_type = NULL; | |
2446 | 736 bool is_exact = false, src_objarray = false, dst_objarray = false; |
0 | 737 { |
738 ciArrayKlass* src_exact_type = as_array_klass(src->exact_type()); | |
739 ciArrayKlass* src_declared_type = as_array_klass(src->declared_type()); | |
2446 | 740 Phi* phi; |
741 if (src_declared_type == NULL && (phi = src->as_Phi()) != NULL) { | |
742 src_declared_type = as_array_klass(phi_declared_type(phi)); | |
743 } | |
0 | 744 ciArrayKlass* dst_exact_type = as_array_klass(dst->exact_type()); |
745 ciArrayKlass* dst_declared_type = as_array_klass(dst->declared_type()); | |
2446 | 746 if (dst_declared_type == NULL && (phi = dst->as_Phi()) != NULL) { |
747 dst_declared_type = as_array_klass(phi_declared_type(phi)); | |
748 } | |
749 | |
0 | 750 if (src_exact_type != NULL && src_exact_type == dst_exact_type) { |
751 // the types exactly match so the type is fully known | |
752 is_exact = true; | |
753 expected_type = src_exact_type; | |
754 } else if (dst_exact_type != NULL && dst_exact_type->is_obj_array_klass()) { | |
755 ciArrayKlass* dst_type = (ciArrayKlass*) dst_exact_type; | |
756 ciArrayKlass* src_type = NULL; | |
757 if (src_exact_type != NULL && src_exact_type->is_obj_array_klass()) { | |
758 src_type = (ciArrayKlass*) src_exact_type; | |
759 } else if (src_declared_type != NULL && src_declared_type->is_obj_array_klass()) { | |
760 src_type = (ciArrayKlass*) src_declared_type; | |
761 } | |
762 if (src_type != NULL) { | |
763 if (src_type->element_type()->is_subtype_of(dst_type->element_type())) { | |
764 is_exact = true; | |
765 expected_type = dst_type; | |
766 } | |
767 } | |
768 } | |
769 // at least pass along a good guess | |
770 if (expected_type == NULL) expected_type = dst_exact_type; | |
771 if (expected_type == NULL) expected_type = src_declared_type; | |
772 if (expected_type == NULL) expected_type = dst_declared_type; | |
2446 | 773 |
774 src_objarray = (src_exact_type && src_exact_type->is_obj_array_klass()) || (src_declared_type && src_declared_type->is_obj_array_klass()); | |
775 dst_objarray = (dst_exact_type && dst_exact_type->is_obj_array_klass()) || (dst_declared_type && dst_declared_type->is_obj_array_klass()); | |
0 | 776 } |
777 | |
778 // if a probable array type has been identified, figure out if any | |
779 // of the required checks for a fast case can be elided. | |
780 int flags = LIR_OpArrayCopy::all_flags; | |
2446 | 781 |
782 if (!src_objarray) | |
783 flags &= ~LIR_OpArrayCopy::src_objarray; | |
784 if (!dst_objarray) | |
785 flags &= ~LIR_OpArrayCopy::dst_objarray; | |
786 | |
787 if (!x->arg_needs_null_check(0)) | |
788 flags &= ~LIR_OpArrayCopy::src_null_check; | |
789 if (!x->arg_needs_null_check(2)) | |
790 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
791 | |
792 | |
0 | 793 if (expected_type != NULL) { |
2446 | 794 Value length_limit = NULL; |
795 | |
796 IfOp* ifop = length->as_IfOp(); | |
797 if (ifop != NULL) { | |
798 // look for expressions like min(v, a.length) which ends up as | |
799 // x > y ? y : x or x >= y ? y : x | |
800 if ((ifop->cond() == If::gtr || ifop->cond() == If::geq) && | |
801 ifop->x() == ifop->fval() && | |
802 ifop->y() == ifop->tval()) { | |
803 length_limit = ifop->y(); | |
804 } | |
805 } | |
806 | |
807 // try to skip null checks and range checks | |
808 NewArray* src_array = src->as_NewArray(); | |
809 if (src_array != NULL) { | |
0 | 810 flags &= ~LIR_OpArrayCopy::src_null_check; |
2446 | 811 if (length_limit != NULL && |
812 src_array->length() == length_limit && | |
813 is_constant_zero(src_pos)) { | |
814 flags &= ~LIR_OpArrayCopy::src_range_check; | |
815 } | |
816 } | |
817 | |
818 NewArray* dst_array = dst->as_NewArray(); | |
819 if (dst_array != NULL) { | |
0 | 820 flags &= ~LIR_OpArrayCopy::dst_null_check; |
2446 | 821 if (length_limit != NULL && |
822 dst_array->length() == length_limit && | |
823 is_constant_zero(dst_pos)) { | |
824 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
825 } | |
826 } | |
0 | 827 |
828 // check from incoming constant values | |
829 if (positive_constant(src_pos)) | |
830 flags &= ~LIR_OpArrayCopy::src_pos_positive_check; | |
831 if (positive_constant(dst_pos)) | |
832 flags &= ~LIR_OpArrayCopy::dst_pos_positive_check; | |
833 if (positive_constant(length)) | |
834 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
835 | |
836 // see if the range check can be elided, which might also imply | |
837 // that src or dst is non-null. | |
838 ArrayLength* al = length->as_ArrayLength(); | |
839 if (al != NULL) { | |
840 if (al->array() == src) { | |
841 // it's the length of the source array | |
842 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
843 flags &= ~LIR_OpArrayCopy::src_null_check; | |
844 if (is_constant_zero(src_pos)) | |
845 flags &= ~LIR_OpArrayCopy::src_range_check; | |
846 } | |
847 if (al->array() == dst) { | |
848 // it's the length of the destination array | |
849 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
850 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
851 if (is_constant_zero(dst_pos)) | |
852 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
853 } | |
854 } | |
855 if (is_exact) { | |
856 flags &= ~LIR_OpArrayCopy::type_check; | |
857 } | |
858 } | |
859 | |
2446 | 860 IntConstant* src_int = src_pos->type()->as_IntConstant(); |
861 IntConstant* dst_int = dst_pos->type()->as_IntConstant(); | |
862 if (src_int && dst_int) { | |
863 int s_offs = src_int->value(); | |
864 int d_offs = dst_int->value(); | |
865 if (src_int->value() >= dst_int->value()) { | |
866 flags &= ~LIR_OpArrayCopy::overlapping; | |
867 } | |
868 if (expected_type != NULL) { | |
869 BasicType t = expected_type->element_type()->basic_type(); | |
870 int element_size = type2aelembytes(t); | |
871 if (((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && | |
872 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0)) { | |
873 flags &= ~LIR_OpArrayCopy::unaligned; | |
874 } | |
875 } | |
876 } else if (src_pos == dst_pos || is_constant_zero(dst_pos)) { | |
877 // src and dest positions are the same, or dst is zero so assume | |
878 // nonoverlapping copy. | |
879 flags &= ~LIR_OpArrayCopy::overlapping; | |
880 } | |
881 | |
0 | 882 if (src == dst) { |
883 // moving within a single array so no type checks are needed | |
884 if (flags & LIR_OpArrayCopy::type_check) { | |
885 flags &= ~LIR_OpArrayCopy::type_check; | |
886 } | |
887 } | |
888 *flagsp = flags; | |
889 *expected_typep = (ciArrayKlass*)expected_type; | |
890 } | |
891 | |
892 | |
893 LIR_Opr LIRGenerator::round_item(LIR_Opr opr) { | |
894 assert(opr->is_register(), "why spill if item is not register?"); | |
895 | |
896 if (RoundFPResults && UseSSE < 1 && opr->is_single_fpu()) { | |
897 LIR_Opr result = new_register(T_FLOAT); | |
898 set_vreg_flag(result, must_start_in_memory); | |
899 assert(opr->is_register(), "only a register can be spilled"); | |
900 assert(opr->value_type()->is_float(), "rounding only for floats available"); | |
901 __ roundfp(opr, LIR_OprFact::illegalOpr, result); | |
902 return result; | |
903 } | |
904 return opr; | |
905 } | |
906 | |
907 | |
908 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) { | |
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909 assert(type2size[t] == type2size[value->type()], |
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910 err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type()))); |
0 | 911 if (!value->is_register()) { |
912 // force into a register | |
913 LIR_Opr r = new_register(value->type()); | |
914 __ move(value, r); | |
915 value = r; | |
916 } | |
917 | |
918 // create a spill location | |
919 LIR_Opr tmp = new_register(t); | |
920 set_vreg_flag(tmp, LIRGenerator::must_start_in_memory); | |
921 | |
922 // move from register to spill | |
923 __ move(value, tmp); | |
924 return tmp; | |
925 } | |
926 | |
927 void LIRGenerator::profile_branch(If* if_instr, If::Condition cond) { | |
928 if (if_instr->should_profile()) { | |
929 ciMethod* method = if_instr->profiled_method(); | |
930 assert(method != NULL, "method should be set if branch is profiled"); | |
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931 ciMethodData* md = method->method_data_or_null(); |
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932 assert(md != NULL, "Sanity"); |
0 | 933 ciProfileData* data = md->bci_to_data(if_instr->profiled_bci()); |
934 assert(data != NULL, "must have profiling data"); | |
935 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
936 int taken_count_offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
937 int not_taken_count_offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
1783 | 938 if (if_instr->is_swapped()) { |
939 int t = taken_count_offset; | |
940 taken_count_offset = not_taken_count_offset; | |
941 not_taken_count_offset = t; | |
942 } | |
943 | |
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944 LIR_Opr md_reg = new_register(T_METADATA); |
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945 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 946 |
947 LIR_Opr data_offset_reg = new_pointer_register(); | |
0 | 948 __ cmove(lir_cond(cond), |
1783 | 949 LIR_OprFact::intptrConst(taken_count_offset), |
950 LIR_OprFact::intptrConst(not_taken_count_offset), | |
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951 data_offset_reg, as_BasicType(if_instr->x()->type())); |
1783 | 952 |
953 // MDO cells are intptr_t, so the data_reg width is arch-dependent. | |
954 LIR_Opr data_reg = new_pointer_register(); | |
955 LIR_Address* data_addr = new LIR_Address(md_reg, data_offset_reg, data_reg->type()); | |
2002 | 956 __ move(data_addr, data_reg); |
1783 | 957 // Use leal instead of add to avoid destroying condition codes on x86 |
0 | 958 LIR_Address* fake_incr_value = new LIR_Address(data_reg, DataLayout::counter_increment, T_INT); |
959 __ leal(LIR_OprFact::address(fake_incr_value), data_reg); | |
2002 | 960 __ move(data_reg, data_addr); |
0 | 961 } |
962 } | |
963 | |
964 // Phi technique: | |
965 // This is about passing live values from one basic block to the other. | |
966 // In code generated with Java it is rather rare that more than one | |
967 // value is on the stack from one basic block to the other. | |
968 // We optimize our technique for efficient passing of one value | |
969 // (of type long, int, double..) but it can be extended. | |
970 // When entering or leaving a basic block, all registers and all spill | |
971 // slots are release and empty. We use the released registers | |
972 // and spill slots to pass the live values from one block | |
973 // to the other. The topmost value, i.e., the value on TOS of expression | |
974 // stack is passed in registers. All other values are stored in spilling | |
975 // area. Every Phi has an index which designates its spill slot | |
976 // At exit of a basic block, we fill the register(s) and spill slots. | |
977 // At entry of a basic block, the block_prolog sets up the content of phi nodes | |
978 // and locks necessary registers and spilling slots. | |
979 | |
980 | |
981 // move current value to referenced phi function | |
982 void LIRGenerator::move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val) { | |
983 Phi* phi = sux_val->as_Phi(); | |
984 // cur_val can be null without phi being null in conjunction with inlining | |
985 if (phi != NULL && cur_val != NULL && cur_val != phi && !phi->is_illegal()) { | |
986 LIR_Opr operand = cur_val->operand(); | |
987 if (cur_val->operand()->is_illegal()) { | |
988 assert(cur_val->as_Constant() != NULL || cur_val->as_Local() != NULL, | |
989 "these can be produced lazily"); | |
990 operand = operand_for_instruction(cur_val); | |
991 } | |
992 resolver->move(operand, operand_for_instruction(phi)); | |
993 } | |
994 } | |
995 | |
996 | |
997 // Moves all stack values into their PHI position | |
998 void LIRGenerator::move_to_phi(ValueStack* cur_state) { | |
999 BlockBegin* bb = block(); | |
1000 if (bb->number_of_sux() == 1) { | |
1001 BlockBegin* sux = bb->sux_at(0); | |
1002 assert(sux->number_of_preds() > 0, "invalid CFG"); | |
1003 | |
1004 // a block with only one predecessor never has phi functions | |
1005 if (sux->number_of_preds() > 1) { | |
1006 int max_phis = cur_state->stack_size() + cur_state->locals_size(); | |
1007 PhiResolver resolver(this, _virtual_register_number + max_phis * 2); | |
1008 | |
1009 ValueStack* sux_state = sux->state(); | |
1010 Value sux_value; | |
1011 int index; | |
1012 | |
1819 | 1013 assert(cur_state->scope() == sux_state->scope(), "not matching"); |
1014 assert(cur_state->locals_size() == sux_state->locals_size(), "not matching"); | |
1015 assert(cur_state->stack_size() == sux_state->stack_size(), "not matching"); | |
1016 | |
0 | 1017 for_each_stack_value(sux_state, index, sux_value) { |
1018 move_to_phi(&resolver, cur_state->stack_at(index), sux_value); | |
1019 } | |
1020 | |
1021 for_each_local_value(sux_state, index, sux_value) { | |
1022 move_to_phi(&resolver, cur_state->local_at(index), sux_value); | |
1023 } | |
1024 | |
1025 assert(cur_state->caller_state() == sux_state->caller_state(), "caller states must be equal"); | |
1026 } | |
1027 } | |
1028 } | |
1029 | |
1030 | |
1031 LIR_Opr LIRGenerator::new_register(BasicType type) { | |
1032 int vreg = _virtual_register_number; | |
1033 // add a little fudge factor for the bailout, since the bailout is | |
1034 // only checked periodically. This gives a few extra registers to | |
1035 // hand out before we really run out, which helps us keep from | |
1036 // tripping over assertions. | |
1037 if (vreg + 20 >= LIR_OprDesc::vreg_max) { | |
1038 bailout("out of virtual registers"); | |
1039 if (vreg + 2 >= LIR_OprDesc::vreg_max) { | |
1040 // wrap it around | |
1041 _virtual_register_number = LIR_OprDesc::vreg_base; | |
1042 } | |
1043 } | |
1044 _virtual_register_number += 1; | |
1045 return LIR_OprFact::virtual_register(vreg, type); | |
1046 } | |
1047 | |
1048 | |
1049 // Try to lock using register in hint | |
1050 LIR_Opr LIRGenerator::rlock(Value instr) { | |
1051 return new_register(instr->type()); | |
1052 } | |
1053 | |
1054 | |
1055 // does an rlock and sets result | |
1056 LIR_Opr LIRGenerator::rlock_result(Value x) { | |
1057 LIR_Opr reg = rlock(x); | |
1058 set_result(x, reg); | |
1059 return reg; | |
1060 } | |
1061 | |
1062 | |
1063 // does an rlock and sets result | |
1064 LIR_Opr LIRGenerator::rlock_result(Value x, BasicType type) { | |
1065 LIR_Opr reg; | |
1066 switch (type) { | |
1067 case T_BYTE: | |
1068 case T_BOOLEAN: | |
1069 reg = rlock_byte(type); | |
1070 break; | |
1071 default: | |
1072 reg = rlock(x); | |
1073 break; | |
1074 } | |
1075 | |
1076 set_result(x, reg); | |
1077 return reg; | |
1078 } | |
1079 | |
1080 | |
1081 //--------------------------------------------------------------------- | |
1082 ciObject* LIRGenerator::get_jobject_constant(Value value) { | |
1083 ObjectType* oc = value->type()->as_ObjectType(); | |
1084 if (oc) { | |
1085 return oc->constant_value(); | |
1086 } | |
1087 return NULL; | |
1088 } | |
1089 | |
1090 | |
1091 void LIRGenerator::do_ExceptionObject(ExceptionObject* x) { | |
1092 assert(block()->is_set(BlockBegin::exception_entry_flag), "ExceptionObject only allowed in exception handler block"); | |
1093 assert(block()->next() == x, "ExceptionObject must be first instruction of block"); | |
1094 | |
1095 // no moves are created for phi functions at the begin of exception | |
1096 // handlers, so assign operands manually here | |
1097 for_each_phi_fun(block(), phi, | |
1098 operand_for_instruction(phi)); | |
1099 | |
1100 LIR_Opr thread_reg = getThreadPointer(); | |
2002 | 1101 __ move_wide(new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT), |
1102 exceptionOopOpr()); | |
1103 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1104 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT)); | |
1105 __ move_wide(LIR_OprFact::oopConst(NULL), | |
1106 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_pc_offset()), T_OBJECT)); | |
0 | 1107 |
1108 LIR_Opr result = new_register(T_OBJECT); | |
1109 __ move(exceptionOopOpr(), result); | |
1110 set_result(x, result); | |
1111 } | |
1112 | |
1113 | |
1114 //---------------------------------------------------------------------- | |
1115 //---------------------------------------------------------------------- | |
1116 //---------------------------------------------------------------------- | |
1117 //---------------------------------------------------------------------- | |
1118 // visitor functions | |
1119 //---------------------------------------------------------------------- | |
1120 //---------------------------------------------------------------------- | |
1121 //---------------------------------------------------------------------- | |
1122 //---------------------------------------------------------------------- | |
1123 | |
1124 void LIRGenerator::do_Phi(Phi* x) { | |
1125 // phi functions are never visited directly | |
1126 ShouldNotReachHere(); | |
1127 } | |
1128 | |
1129 | |
1130 // Code for a constant is generated lazily unless the constant is frequently used and can't be inlined. | |
1131 void LIRGenerator::do_Constant(Constant* x) { | |
1819 | 1132 if (x->state_before() != NULL) { |
0 | 1133 // Any constant with a ValueStack requires patching so emit the patch here |
1134 LIR_Opr reg = rlock_result(x); | |
1819 | 1135 CodeEmitInfo* info = state_for(x, x->state_before()); |
0 | 1136 __ oop2reg_patch(NULL, reg, info); |
1137 } else if (x->use_count() > 1 && !can_inline_as_constant(x)) { | |
1138 if (!x->is_pinned()) { | |
1139 // unpinned constants are handled specially so that they can be | |
1140 // put into registers when they are used multiple times within a | |
1141 // block. After the block completes their operand will be | |
1142 // cleared so that other blocks can't refer to that register. | |
1143 set_result(x, load_constant(x)); | |
1144 } else { | |
1145 LIR_Opr res = x->operand(); | |
1146 if (!res->is_valid()) { | |
1147 res = LIR_OprFact::value_type(x->type()); | |
1148 } | |
1149 if (res->is_constant()) { | |
1150 LIR_Opr reg = rlock_result(x); | |
1151 __ move(res, reg); | |
1152 } else { | |
1153 set_result(x, res); | |
1154 } | |
1155 } | |
1156 } else { | |
1157 set_result(x, LIR_OprFact::value_type(x->type())); | |
1158 } | |
1159 } | |
1160 | |
1161 | |
1162 void LIRGenerator::do_Local(Local* x) { | |
1163 // operand_for_instruction has the side effect of setting the result | |
1164 // so there's no need to do it here. | |
1165 operand_for_instruction(x); | |
1166 } | |
1167 | |
1168 | |
1169 void LIRGenerator::do_IfInstanceOf(IfInstanceOf* x) { | |
1170 Unimplemented(); | |
1171 } | |
1172 | |
1173 | |
1174 void LIRGenerator::do_Return(Return* x) { | |
780
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1175 if (compilation()->env()->dtrace_method_probes()) { |
0 | 1176 BasicTypeList signature; |
2002 | 1177 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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1178 signature.append(T_METADATA); // Method* |
0 | 1179 LIR_OprList* args = new LIR_OprList(); |
1180 args->append(getThreadPointer()); | |
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1181 LIR_Opr meth = new_register(T_METADATA); |
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1182 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 1183 args->append(meth); |
1184 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL); | |
1185 } | |
1186 | |
1187 if (x->type()->is_void()) { | |
1188 __ return_op(LIR_OprFact::illegalOpr); | |
1189 } else { | |
1190 LIR_Opr reg = result_register_for(x->type(), /*callee=*/true); | |
1191 LIRItem result(x->result(), this); | |
1192 | |
1193 result.load_item_force(reg); | |
1194 __ return_op(result.result()); | |
1195 } | |
1196 set_no_result(x); | |
1197 } | |
1198 | |
3249
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1199 // Examble: ref.get() |
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1200 // Combination of LoadField and g1 pre-write barrier |
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1201 void LIRGenerator::do_Reference_get(Intrinsic* x) { |
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1202 |
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1203 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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1204 guarantee(referent_offset > 0, "referent offset not initialized"); |
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1205 |
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1206 assert(x->number_of_arguments() == 1, "wrong type"); |
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1207 |
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1208 LIRItem reference(x->argument_at(0), this); |
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1209 reference.load_item(); |
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1210 |
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1211 // need to perform the null check on the reference objecy |
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1212 CodeEmitInfo* info = NULL; |
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1213 if (x->needs_null_check()) { |
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1214 info = state_for(x); |
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1215 } |
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1216 |
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1217 LIR_Address* referent_field_adr = |
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1218 new LIR_Address(reference.result(), referent_offset, T_OBJECT); |
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1219 |
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1220 LIR_Opr result = rlock_result(x); |
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1221 |
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1222 __ load(referent_field_adr, result, info); |
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1223 |
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1224 // Register the value in the referent field with the pre-barrier |
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1225 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
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1226 result /* pre_val */, |
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1227 false /* do_load */, |
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1228 false /* patch */, |
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1229 NULL /* info */); |
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1230 } |
0 | 1231 |
6135 | 1232 // Example: clazz.isInstance(object) |
1233 void LIRGenerator::do_isInstance(Intrinsic* x) { | |
1234 assert(x->number_of_arguments() == 2, "wrong type"); | |
1235 | |
1236 // TODO could try to substitute this node with an equivalent InstanceOf | |
1237 // if clazz is known to be a constant Class. This will pick up newly found | |
1238 // constants after HIR construction. I'll leave this to a future change. | |
1239 | |
1240 // as a first cut, make a simple leaf call to runtime to stay platform independent. | |
1241 // could follow the aastore example in a future change. | |
1242 | |
1243 LIRItem clazz(x->argument_at(0), this); | |
1244 LIRItem object(x->argument_at(1), this); | |
1245 clazz.load_item(); | |
1246 object.load_item(); | |
1247 LIR_Opr result = rlock_result(x); | |
1248 | |
1249 // need to perform null check on clazz | |
1250 if (x->needs_null_check()) { | |
1251 CodeEmitInfo* info = state_for(x); | |
1252 __ null_check(clazz.result(), info); | |
1253 } | |
1254 | |
1255 LIR_Opr call_result = call_runtime(clazz.value(), object.value(), | |
1256 CAST_FROM_FN_PTR(address, Runtime1::is_instance_of), | |
1257 x->type(), | |
1258 NULL); // NULL CodeEmitInfo results in a leaf call | |
1259 __ move(call_result, result); | |
1260 } | |
1261 | |
0 | 1262 // Example: object.getClass () |
1263 void LIRGenerator::do_getClass(Intrinsic* x) { | |
1264 assert(x->number_of_arguments() == 1, "wrong type"); | |
1265 | |
1266 LIRItem rcvr(x->argument_at(0), this); | |
1267 rcvr.load_item(); | |
12955 | 1268 LIR_Opr temp = new_register(T_METADATA); |
0 | 1269 LIR_Opr result = rlock_result(x); |
1270 | |
1271 // need to perform the null check on the rcvr | |
1272 CodeEmitInfo* info = NULL; | |
1273 if (x->needs_null_check()) { | |
1819 | 1274 info = state_for(x); |
0 | 1275 } |
12955 | 1276 |
1277 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the | |
1278 // meaning of these two is mixed up (see JDK-8026837). | |
1279 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info); | |
1280 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); | |
0 | 1281 } |
1282 | |
1283 | |
1284 // Example: Thread.currentThread() | |
1285 void LIRGenerator::do_currentThread(Intrinsic* x) { | |
1286 assert(x->number_of_arguments() == 0, "wrong type"); | |
1287 LIR_Opr reg = rlock_result(x); | |
2002 | 1288 __ move_wide(new LIR_Address(getThreadPointer(), in_bytes(JavaThread::threadObj_offset()), T_OBJECT), reg); |
0 | 1289 } |
1290 | |
1291 | |
1292 void LIRGenerator::do_RegisterFinalizer(Intrinsic* x) { | |
1293 assert(x->number_of_arguments() == 1, "wrong type"); | |
1294 LIRItem receiver(x->argument_at(0), this); | |
1295 | |
1296 receiver.load_item(); | |
1297 BasicTypeList signature; | |
1298 signature.append(T_OBJECT); // receiver | |
1299 LIR_OprList* args = new LIR_OprList(); | |
1300 args->append(receiver.result()); | |
1301 CodeEmitInfo* info = state_for(x, x->state()); | |
1302 call_runtime(&signature, args, | |
1303 CAST_FROM_FN_PTR(address, Runtime1::entry_for(Runtime1::register_finalizer_id)), | |
1304 voidType, info); | |
1305 | |
1306 set_no_result(x); | |
1307 } | |
1308 | |
1309 | |
1310 //------------------------local access-------------------------------------- | |
1311 | |
1312 LIR_Opr LIRGenerator::operand_for_instruction(Instruction* x) { | |
1313 if (x->operand()->is_illegal()) { | |
1314 Constant* c = x->as_Constant(); | |
1315 if (c != NULL) { | |
1316 x->set_operand(LIR_OprFact::value_type(c->type())); | |
1317 } else { | |
1318 assert(x->as_Phi() || x->as_Local() != NULL, "only for Phi and Local"); | |
1319 // allocate a virtual register for this local or phi | |
1320 x->set_operand(rlock(x)); | |
1321 _instruction_for_operand.at_put_grow(x->operand()->vreg_number(), x, NULL); | |
1322 } | |
1323 } | |
1324 return x->operand(); | |
1325 } | |
1326 | |
1327 | |
1328 Instruction* LIRGenerator::instruction_for_opr(LIR_Opr opr) { | |
1329 if (opr->is_virtual()) { | |
1330 return instruction_for_vreg(opr->vreg_number()); | |
1331 } | |
1332 return NULL; | |
1333 } | |
1334 | |
1335 | |
1336 Instruction* LIRGenerator::instruction_for_vreg(int reg_num) { | |
1337 if (reg_num < _instruction_for_operand.length()) { | |
1338 return _instruction_for_operand.at(reg_num); | |
1339 } | |
1340 return NULL; | |
1341 } | |
1342 | |
1343 | |
1344 void LIRGenerator::set_vreg_flag(int vreg_num, VregFlag f) { | |
1345 if (_vreg_flags.size_in_bits() == 0) { | |
1346 BitMap2D temp(100, num_vreg_flags); | |
1347 temp.clear(); | |
1348 _vreg_flags = temp; | |
1349 } | |
1350 _vreg_flags.at_put_grow(vreg_num, f, true); | |
1351 } | |
1352 | |
1353 bool LIRGenerator::is_vreg_flag_set(int vreg_num, VregFlag f) { | |
1354 if (!_vreg_flags.is_valid_index(vreg_num, f)) { | |
1355 return false; | |
1356 } | |
1357 return _vreg_flags.at(vreg_num, f); | |
1358 } | |
1359 | |
1360 | |
1361 // Block local constant handling. This code is useful for keeping | |
1362 // unpinned constants and constants which aren't exposed in the IR in | |
1363 // registers. Unpinned Constant instructions have their operands | |
1364 // cleared when the block is finished so that other blocks can't end | |
1365 // up referring to their registers. | |
1366 | |
1367 LIR_Opr LIRGenerator::load_constant(Constant* x) { | |
1368 assert(!x->is_pinned(), "only for unpinned constants"); | |
1369 _unpinned_constants.append(x); | |
1370 return load_constant(LIR_OprFact::value_type(x->type())->as_constant_ptr()); | |
1371 } | |
1372 | |
1373 | |
1374 LIR_Opr LIRGenerator::load_constant(LIR_Const* c) { | |
1375 BasicType t = c->type(); | |
1376 for (int i = 0; i < _constants.length(); i++) { | |
1377 LIR_Const* other = _constants.at(i); | |
1378 if (t == other->type()) { | |
1379 switch (t) { | |
1380 case T_INT: | |
1381 case T_FLOAT: | |
1382 if (c->as_jint_bits() != other->as_jint_bits()) continue; | |
1383 break; | |
1384 case T_LONG: | |
1385 case T_DOUBLE: | |
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1386 if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue; |
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1387 if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue; |
0 | 1388 break; |
1389 case T_OBJECT: | |
1390 if (c->as_jobject() != other->as_jobject()) continue; | |
1391 break; | |
1392 } | |
1393 return _reg_for_constants.at(i); | |
1394 } | |
1395 } | |
1396 | |
1397 LIR_Opr result = new_register(t); | |
1398 __ move((LIR_Opr)c, result); | |
1399 _constants.append(c); | |
1400 _reg_for_constants.append(result); | |
1401 return result; | |
1402 } | |
1403 | |
1404 // Various barriers | |
1405 | |
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1406 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1407 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1408 // Do the pre-write barrier, if any. |
1409 switch (_bs->kind()) { | |
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1410 #if INCLUDE_ALL_GCS |
342 | 1411 case BarrierSet::G1SATBCT: |
1412 case BarrierSet::G1SATBCTLogging: | |
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1413 G1SATBCardTableModRef_pre_barrier(addr_opr, pre_val, do_load, patch, info); |
342 | 1414 break; |
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1415 #endif // INCLUDE_ALL_GCS |
342 | 1416 case BarrierSet::CardTableModRef: |
1417 case BarrierSet::CardTableExtension: | |
1418 // No pre barriers | |
1419 break; | |
1420 case BarrierSet::ModRef: | |
1421 case BarrierSet::Other: | |
1422 // No pre barriers | |
1423 break; | |
1424 default : | |
1425 ShouldNotReachHere(); | |
1426 | |
1427 } | |
1428 } | |
1429 | |
0 | 1430 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
342 | 1431 switch (_bs->kind()) { |
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1432 #if INCLUDE_ALL_GCS |
342 | 1433 case BarrierSet::G1SATBCT: |
1434 case BarrierSet::G1SATBCTLogging: | |
1435 G1SATBCardTableModRef_post_barrier(addr, new_val); | |
1436 break; | |
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1437 #endif // INCLUDE_ALL_GCS |
0 | 1438 case BarrierSet::CardTableModRef: |
1439 case BarrierSet::CardTableExtension: | |
1440 CardTableModRef_post_barrier(addr, new_val); | |
1441 break; | |
1442 case BarrierSet::ModRef: | |
1443 case BarrierSet::Other: | |
1444 // No post barriers | |
1445 break; | |
1446 default : | |
1447 ShouldNotReachHere(); | |
1448 } | |
1449 } | |
1450 | |
342 | 1451 //////////////////////////////////////////////////////////////////////// |
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1452 #if INCLUDE_ALL_GCS |
342 | 1453 |
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1454 void LIRGenerator::G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1455 bool do_load, bool patch, CodeEmitInfo* info) { |
342 | 1456 // First we test whether marking is in progress. |
1457 BasicType flag_type; | |
1458 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
1459 flag_type = T_INT; | |
1460 } else { | |
1461 guarantee(in_bytes(PtrQueue::byte_width_of_active()) == 1, | |
1462 "Assumption"); | |
1463 flag_type = T_BYTE; | |
1464 } | |
1465 LIR_Opr thrd = getThreadPointer(); | |
1466 LIR_Address* mark_active_flag_addr = | |
1467 new LIR_Address(thrd, | |
1468 in_bytes(JavaThread::satb_mark_queue_offset() + | |
1469 PtrQueue::byte_offset_of_active()), | |
1470 flag_type); | |
1471 // Read the marking-in-progress flag. | |
1472 LIR_Opr flag_val = new_register(T_INT); | |
1473 __ load(mark_active_flag_addr, flag_val); | |
1474 __ cmp(lir_cond_notEqual, flag_val, LIR_OprFact::intConst(0)); | |
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1475 |
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1476 LIR_PatchCode pre_val_patch_code = lir_patch_none; |
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1477 |
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1478 CodeStub* slow; |
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1479 |
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1480 if (do_load) { |
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1481 assert(pre_val == LIR_OprFact::illegalOpr, "sanity"); |
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1482 assert(addr_opr != LIR_OprFact::illegalOpr, "sanity"); |
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1483 |
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1484 if (patch) |
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1485 pre_val_patch_code = lir_patch_normal; |
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1486 |
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1487 pre_val = new_register(T_OBJECT); |
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1488 |
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1489 if (!addr_opr->is_address()) { |
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1490 assert(addr_opr->is_register(), "must be"); |
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1491 addr_opr = LIR_OprFact::address(new LIR_Address(addr_opr, T_OBJECT)); |
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1492 } |
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1493 slow = new G1PreBarrierStub(addr_opr, pre_val, pre_val_patch_code, info); |
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1494 } else { |
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1495 assert(addr_opr == LIR_OprFact::illegalOpr, "sanity"); |
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1496 assert(pre_val->is_register(), "must be"); |
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1497 assert(pre_val->type() == T_OBJECT, "must be an object"); |
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1498 assert(info == NULL, "sanity"); |
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1499 |
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1500 slow = new G1PreBarrierStub(pre_val); |
342 | 1501 } |
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1502 |
342 | 1503 __ branch(lir_cond_notEqual, T_INT, slow); |
1504 __ branch_destination(slow->continuation()); | |
1505 } | |
1506 | |
1507 void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { | |
1508 // If the "new_val" is a constant NULL, no barrier is necessary. | |
1509 if (new_val->is_constant() && | |
1510 new_val->as_constant_ptr()->as_jobject() == NULL) return; | |
1511 | |
1512 if (!new_val->is_register()) { | |
1572 | 1513 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1514 if (new_val->is_constant()) { |
1515 __ move(new_val, new_val_reg); | |
1516 } else { | |
1517 __ leal(new_val, new_val_reg); | |
1518 } | |
1519 new_val = new_val_reg; | |
1520 } | |
1521 assert(new_val->is_register(), "must be a register at this point"); | |
1522 | |
1523 if (addr->is_address()) { | |
1524 LIR_Address* address = addr->as_address_ptr(); | |
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1525 LIR_Opr ptr = new_pointer_register(); |
342 | 1526 if (!address->index()->is_valid() && address->disp() == 0) { |
1527 __ move(address->base(), ptr); | |
1528 } else { | |
1529 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1530 __ leal(addr, ptr); | |
1531 } | |
1532 addr = ptr; | |
1533 } | |
1534 assert(addr->is_register(), "must be a register at this point"); | |
1535 | |
1536 LIR_Opr xor_res = new_pointer_register(); | |
1537 LIR_Opr xor_shift_res = new_pointer_register(); | |
1538 if (TwoOperandLIRForm ) { | |
1539 __ move(addr, xor_res); | |
1540 __ logical_xor(xor_res, new_val, xor_res); | |
1541 __ move(xor_res, xor_shift_res); | |
1542 __ unsigned_shift_right(xor_shift_res, | |
1543 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1544 xor_shift_res, | |
1545 LIR_OprDesc::illegalOpr()); | |
1546 } else { | |
1547 __ logical_xor(addr, new_val, xor_res); | |
1548 __ unsigned_shift_right(xor_res, | |
1549 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
1550 xor_shift_res, | |
1551 LIR_OprDesc::illegalOpr()); | |
1552 } | |
1553 | |
1554 if (!new_val->is_register()) { | |
1572 | 1555 LIR_Opr new_val_reg = new_register(T_OBJECT); |
342 | 1556 __ leal(new_val, new_val_reg); |
1557 new_val = new_val_reg; | |
1558 } | |
1559 assert(new_val->is_register(), "must be a register at this point"); | |
1560 | |
1561 __ cmp(lir_cond_notEqual, xor_shift_res, LIR_OprFact::intptrConst(NULL_WORD)); | |
1562 | |
1563 CodeStub* slow = new G1PostBarrierStub(addr, new_val); | |
1572 | 1564 __ branch(lir_cond_notEqual, LP64_ONLY(T_LONG) NOT_LP64(T_INT), slow); |
342 | 1565 __ branch_destination(slow->continuation()); |
1566 } | |
1567 | |
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1568 #endif // INCLUDE_ALL_GCS |
342 | 1569 //////////////////////////////////////////////////////////////////////// |
1570 | |
0 | 1571 void LIRGenerator::CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
1572 | |
342 | 1573 assert(sizeof(*((CardTableModRefBS*)_bs)->byte_map_base) == sizeof(jbyte), "adjust this code"); |
1574 LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base); | |
0 | 1575 if (addr->is_address()) { |
1576 LIR_Address* address = addr->as_address_ptr(); | |
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1577 // ptr cannot be an object because we use this barrier for array card marks |
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1578 // and addr can point in the middle of an array. |
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1579 LIR_Opr ptr = new_pointer_register(); |
0 | 1580 if (!address->index()->is_valid() && address->disp() == 0) { |
1581 __ move(address->base(), ptr); | |
1582 } else { | |
1583 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
1584 __ leal(addr, ptr); | |
1585 } | |
1586 addr = ptr; | |
1587 } | |
1588 assert(addr->is_register(), "must be a register at this point"); | |
1589 | |
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1590 #ifdef ARM |
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1591 // TODO: ARM - move to platform-dependent code |
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1592 LIR_Opr tmp = FrameMap::R14_opr; |
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1593 if (VM_Version::supports_movw()) { |
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1594 __ move((LIR_Opr)card_table_base, tmp); |
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1595 } else { |
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1596 __ move(new LIR_Address(FrameMap::Rthread_opr, in_bytes(JavaThread::card_table_base_offset()), T_ADDRESS), tmp); |
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1597 } |
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1598 |
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1599 CardTableModRefBS* ct = (CardTableModRefBS*)_bs; |
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1600 LIR_Address *card_addr = new LIR_Address(tmp, addr, (LIR_Address::Scale) -CardTableModRefBS::card_shift, 0, T_BYTE); |
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1601 if(((int)ct->byte_map_base & 0xff) == 0) { |
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1602 __ move(tmp, card_addr); |
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1603 } else { |
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1604 LIR_Opr tmp_zero = new_register(T_INT); |
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1605 __ move(LIR_OprFact::intConst(0), tmp_zero); |
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1606 __ move(tmp_zero, card_addr); |
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1607 } |
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1608 #else // ARM |
0 | 1609 LIR_Opr tmp = new_pointer_register(); |
1610 if (TwoOperandLIRForm) { | |
1611 __ move(addr, tmp); | |
1612 __ unsigned_shift_right(tmp, CardTableModRefBS::card_shift, tmp); | |
1613 } else { | |
1614 __ unsigned_shift_right(addr, CardTableModRefBS::card_shift, tmp); | |
1615 } | |
1616 if (can_inline_as_constant(card_table_base)) { | |
1617 __ move(LIR_OprFact::intConst(0), | |
1618 new LIR_Address(tmp, card_table_base->as_jint(), T_BYTE)); | |
1619 } else { | |
1620 __ move(LIR_OprFact::intConst(0), | |
1621 new LIR_Address(tmp, load_constant(card_table_base), | |
1622 T_BYTE)); | |
1623 } | |
1681
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1624 #endif // ARM |
0 | 1625 } |
1626 | |
1627 | |
1628 //------------------------field access-------------------------------------- | |
1629 | |
1630 // Comment copied form templateTable_i486.cpp | |
1631 // ---------------------------------------------------------------------------- | |
1632 // Volatile variables demand their effects be made known to all CPU's in | |
1633 // order. Store buffers on most chips allow reads & writes to reorder; the | |
1634 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
1635 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
1636 // reorder volatile references, the hardware also must not reorder them). | |
1637 // | |
1638 // According to the new Java Memory Model (JMM): | |
1639 // (1) All volatiles are serialized wrt to each other. | |
1640 // ALSO reads & writes act as aquire & release, so: | |
1641 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
1642 // the read float up to before the read. It's OK for non-volatile memory refs | |
1643 // that happen before the volatile read to float down below it. | |
1644 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
1645 // that happen BEFORE the write float down to after the write. It's OK for | |
1646 // non-volatile memory refs that happen after the volatile write to float up | |
1647 // before it. | |
1648 // | |
1649 // We only put in barriers around volatile refs (they are expensive), not | |
1650 // _between_ memory refs (that would require us to track the flavor of the | |
1651 // previous memory refs). Requirements (2) and (3) require some barriers | |
1652 // before volatile stores and after volatile loads. These nearly cover | |
1653 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
1654 // case is placed after volatile-stores although it could just as well go | |
1655 // before volatile-loads. | |
1656 | |
1657 | |
1658 void LIRGenerator::do_StoreField(StoreField* x) { | |
1659 bool needs_patching = x->needs_patching(); | |
1660 bool is_volatile = x->field()->is_volatile(); | |
1661 BasicType field_type = x->field_type(); | |
1662 bool is_oop = (field_type == T_ARRAY || field_type == T_OBJECT); | |
1663 | |
1664 CodeEmitInfo* info = NULL; | |
1665 if (needs_patching) { | |
1666 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1667 info = state_for(x, x->state_before()); | |
1668 } else if (x->needs_null_check()) { | |
1669 NullCheck* nc = x->explicit_null_check(); | |
1670 if (nc == NULL) { | |
1819 | 1671 info = state_for(x); |
0 | 1672 } else { |
1673 info = state_for(nc); | |
1674 } | |
1675 } | |
1676 | |
1677 | |
1678 LIRItem object(x->obj(), this); | |
1679 LIRItem value(x->value(), this); | |
1680 | |
1681 object.load_item(); | |
1682 | |
1683 if (is_volatile || needs_patching) { | |
1684 // load item if field is volatile (fewer special cases for volatiles) | |
1685 // load item if field not initialized | |
1686 // load item if field not constant | |
1687 // because of code patching we cannot inline constants | |
1688 if (field_type == T_BYTE || field_type == T_BOOLEAN) { | |
1689 value.load_byte_item(); | |
1690 } else { | |
1691 value.load_item(); | |
1692 } | |
1693 } else { | |
1694 value.load_for_store(field_type); | |
1695 } | |
1696 | |
1697 set_no_result(x); | |
1698 | |
1819 | 1699 #ifndef PRODUCT |
0 | 1700 if (PrintNotLoaded && needs_patching) { |
1701 tty->print_cr(" ###class not loaded at store_%s bci %d", | |
1819 | 1702 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1703 } |
1819 | 1704 #endif |
0 | 1705 |
1706 if (x->needs_null_check() && | |
1707 (needs_patching || | |
1708 MacroAssembler::needs_explicit_null_check(x->offset()))) { | |
1709 // emit an explicit null check because the offset is too large | |
1710 __ null_check(object.result(), new CodeEmitInfo(info)); | |
1711 } | |
1712 | |
1713 LIR_Address* address; | |
1714 if (needs_patching) { | |
1715 // we need to patch the offset in the instruction so don't allow | |
1716 // generate_address to try to be smart about emitting the -1. | |
1717 // Otherwise the patching code won't know how to find the | |
1718 // instruction to patch. | |
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1719 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1720 } else { |
1721 address = generate_address(object.result(), x->offset(), field_type); | |
1722 } | |
1723 | |
1724 if (is_volatile && os::is_MP()) { | |
1725 __ membar_release(); | |
1726 } | |
1727 | |
342 | 1728 if (is_oop) { |
1729 // Do the pre-write barrier, if any. | |
1730 pre_barrier(LIR_OprFact::address(address), | |
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1731 LIR_OprFact::illegalOpr /* pre_val */, |
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1732 true /* do_load*/, |
342 | 1733 needs_patching, |
1734 (info ? new CodeEmitInfo(info) : NULL)); | |
1735 } | |
1736 | |
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1737 if (is_volatile && !needs_patching) { |
0 | 1738 volatile_field_store(value.result(), address, info); |
1739 } else { | |
1740 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1741 __ store(value.result(), address, info, patch_code); | |
1742 } | |
1743 | |
1744 if (is_oop) { | |
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1745 // Store to object so mark the card of the header |
0 | 1746 post_barrier(object.result(), value.result()); |
1747 } | |
1748 | |
1749 if (is_volatile && os::is_MP()) { | |
1750 __ membar(); | |
1751 } | |
1752 } | |
1753 | |
1754 | |
1755 void LIRGenerator::do_LoadField(LoadField* x) { | |
1756 bool needs_patching = x->needs_patching(); | |
1757 bool is_volatile = x->field()->is_volatile(); | |
1758 BasicType field_type = x->field_type(); | |
1759 | |
1760 CodeEmitInfo* info = NULL; | |
1761 if (needs_patching) { | |
1762 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
1763 info = state_for(x, x->state_before()); | |
1764 } else if (x->needs_null_check()) { | |
1765 NullCheck* nc = x->explicit_null_check(); | |
1766 if (nc == NULL) { | |
1819 | 1767 info = state_for(x); |
0 | 1768 } else { |
1769 info = state_for(nc); | |
1770 } | |
1771 } | |
1772 | |
1773 LIRItem object(x->obj(), this); | |
1774 | |
1775 object.load_item(); | |
1776 | |
1819 | 1777 #ifndef PRODUCT |
0 | 1778 if (PrintNotLoaded && needs_patching) { |
1779 tty->print_cr(" ###class not loaded at load_%s bci %d", | |
1819 | 1780 x->is_static() ? "static" : "field", x->printable_bci()); |
0 | 1781 } |
1819 | 1782 #endif |
0 | 1783 |
8860 | 1784 bool stress_deopt = StressLoopInvariantCodeMotion && info && info->deoptimize_on_exception(); |
0 | 1785 if (x->needs_null_check() && |
1786 (needs_patching || | |
8860 | 1787 MacroAssembler::needs_explicit_null_check(x->offset()) || |
1788 stress_deopt)) { | |
1789 LIR_Opr obj = object.result(); | |
1790 if (stress_deopt) { | |
1791 obj = new_register(T_OBJECT); | |
1792 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1793 } | |
0 | 1794 // emit an explicit null check because the offset is too large |
8860 | 1795 __ null_check(obj, new CodeEmitInfo(info)); |
0 | 1796 } |
1797 | |
1798 LIR_Opr reg = rlock_result(x, field_type); | |
1799 LIR_Address* address; | |
1800 if (needs_patching) { | |
1801 // we need to patch the offset in the instruction so don't allow | |
1802 // generate_address to try to be smart about emitting the -1. | |
1803 // Otherwise the patching code won't know how to find the | |
1804 // instruction to patch. | |
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1805 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
0 | 1806 } else { |
1807 address = generate_address(object.result(), x->offset(), field_type); | |
1808 } | |
1809 | |
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1810 if (is_volatile && !needs_patching) { |
0 | 1811 volatile_field_load(address, reg, info); |
1812 } else { | |
1813 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
1814 __ load(address, reg, info, patch_code); | |
1815 } | |
1816 | |
1817 if (is_volatile && os::is_MP()) { | |
1818 __ membar_acquire(); | |
1819 } | |
1820 } | |
1821 | |
1822 | |
1823 //------------------------java.nio.Buffer.checkIndex------------------------ | |
1824 | |
1825 // int java.nio.Buffer.checkIndex(int) | |
1826 void LIRGenerator::do_NIOCheckIndex(Intrinsic* x) { | |
1827 // NOTE: by the time we are in checkIndex() we are guaranteed that | |
1828 // the buffer is non-null (because checkIndex is package-private and | |
1829 // only called from within other methods in the buffer). | |
1830 assert(x->number_of_arguments() == 2, "wrong type"); | |
1831 LIRItem buf (x->argument_at(0), this); | |
1832 LIRItem index(x->argument_at(1), this); | |
1833 buf.load_item(); | |
1834 index.load_item(); | |
1835 | |
1836 LIR_Opr result = rlock_result(x); | |
1837 if (GenerateRangeChecks) { | |
1838 CodeEmitInfo* info = state_for(x); | |
1839 CodeStub* stub = new RangeCheckStub(info, index.result(), true); | |
1840 if (index.result()->is_constant()) { | |
1841 cmp_mem_int(lir_cond_belowEqual, buf.result(), java_nio_Buffer::limit_offset(), index.result()->as_jint(), info); | |
1842 __ branch(lir_cond_belowEqual, T_INT, stub); | |
1843 } else { | |
1844 cmp_reg_mem(lir_cond_aboveEqual, index.result(), buf.result(), | |
1845 java_nio_Buffer::limit_offset(), T_INT, info); | |
1846 __ branch(lir_cond_aboveEqual, T_INT, stub); | |
1847 } | |
1848 __ move(index.result(), result); | |
1849 } else { | |
1850 // Just load the index into the result register | |
1851 __ move(index.result(), result); | |
1852 } | |
1853 } | |
1854 | |
1855 | |
1856 //------------------------array access-------------------------------------- | |
1857 | |
1858 | |
1859 void LIRGenerator::do_ArrayLength(ArrayLength* x) { | |
1860 LIRItem array(x->array(), this); | |
1861 array.load_item(); | |
1862 LIR_Opr reg = rlock_result(x); | |
1863 | |
1864 CodeEmitInfo* info = NULL; | |
1865 if (x->needs_null_check()) { | |
1866 NullCheck* nc = x->explicit_null_check(); | |
1867 if (nc == NULL) { | |
1868 info = state_for(x); | |
1869 } else { | |
1870 info = state_for(nc); | |
1871 } | |
8860 | 1872 if (StressLoopInvariantCodeMotion && info->deoptimize_on_exception()) { |
1873 LIR_Opr obj = new_register(T_OBJECT); | |
1874 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1875 __ null_check(obj, new CodeEmitInfo(info)); | |
1876 } | |
0 | 1877 } |
1878 __ load(new LIR_Address(array.result(), arrayOopDesc::length_offset_in_bytes(), T_INT), reg, info, lir_patch_none); | |
1879 } | |
1880 | |
1881 | |
1882 void LIRGenerator::do_LoadIndexed(LoadIndexed* x) { | |
1883 bool use_length = x->length() != NULL; | |
1884 LIRItem array(x->array(), this); | |
1885 LIRItem index(x->index(), this); | |
1886 LIRItem length(this); | |
8860 | 1887 bool needs_range_check = x->compute_needs_range_check(); |
1888 | |
1889 if (use_length && needs_range_check) { | |
1890 length.set_instruction(x->length()); | |
1891 length.load_item(); | |
0 | 1892 } |
1893 | |
1894 array.load_item(); | |
1895 if (index.is_constant() && can_inline_as_constant(x->index())) { | |
1896 // let it be a constant | |
1897 index.dont_load_item(); | |
1898 } else { | |
1899 index.load_item(); | |
1900 } | |
1901 | |
1902 CodeEmitInfo* range_check_info = state_for(x); | |
1903 CodeEmitInfo* null_check_info = NULL; | |
1904 if (x->needs_null_check()) { | |
1905 NullCheck* nc = x->explicit_null_check(); | |
1906 if (nc != NULL) { | |
1907 null_check_info = state_for(nc); | |
1908 } else { | |
1909 null_check_info = range_check_info; | |
1910 } | |
8860 | 1911 if (StressLoopInvariantCodeMotion && null_check_info->deoptimize_on_exception()) { |
1912 LIR_Opr obj = new_register(T_OBJECT); | |
1913 __ move(LIR_OprFact::oopConst(NULL), obj); | |
1914 __ null_check(obj, new CodeEmitInfo(null_check_info)); | |
1915 } | |
0 | 1916 } |
1917 | |
1918 // emit array address setup early so it schedules better | |
1919 LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), false); | |
1920 | |
1921 if (GenerateRangeChecks && needs_range_check) { | |
8860 | 1922 if (StressLoopInvariantCodeMotion && range_check_info->deoptimize_on_exception()) { |
1923 __ branch(lir_cond_always, T_ILLEGAL, new RangeCheckStub(range_check_info, index.result())); | |
1924 } else if (use_length) { | |
0 | 1925 // TODO: use a (modified) version of array_range_check that does not require a |
1926 // constant length to be loaded to a register | |
1927 __ cmp(lir_cond_belowEqual, length.result(), index.result()); | |
1928 __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result())); | |
1929 } else { | |
1930 array_range_check(array.result(), index.result(), null_check_info, range_check_info); | |
1931 // The range check performs the null check, so clear it out for the load | |
1932 null_check_info = NULL; | |
1933 } | |
1934 } | |
1935 | |
1936 __ move(array_addr, rlock_result(x, x->elt_type()), null_check_info); | |
1937 } | |
1938 | |
1939 | |
1940 void LIRGenerator::do_NullCheck(NullCheck* x) { | |
1941 if (x->can_trap()) { | |
1942 LIRItem value(x->obj(), this); | |
1943 value.load_item(); | |
1944 CodeEmitInfo* info = state_for(x); | |
1945 __ null_check(value.result(), info); | |
1946 } | |
1947 } | |
1948 | |
1949 | |
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1950 void LIRGenerator::do_TypeCast(TypeCast* x) { |
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1951 LIRItem value(x->obj(), this); |
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1952 value.load_item(); |
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1953 // the result is the same as from the node we are casting |
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1954 set_result(x, value.result()); |
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1955 } |
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1956 |
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1957 |
0 | 1958 void LIRGenerator::do_Throw(Throw* x) { |
1959 LIRItem exception(x->exception(), this); | |
1960 exception.load_item(); | |
1961 set_no_result(x); | |
1962 LIR_Opr exception_opr = exception.result(); | |
1963 CodeEmitInfo* info = state_for(x, x->state()); | |
1964 | |
1965 #ifndef PRODUCT | |
1966 if (PrintC1Statistics) { | |
1783 | 1967 increment_counter(Runtime1::throw_count_address(), T_INT); |
0 | 1968 } |
1969 #endif | |
1970 | |
1971 // check if the instruction has an xhandler in any of the nested scopes | |
1972 bool unwind = false; | |
1973 if (info->exception_handlers()->length() == 0) { | |
1974 // this throw is not inside an xhandler | |
1975 unwind = true; | |
1976 } else { | |
1977 // get some idea of the throw type | |
1978 bool type_is_exact = true; | |
1979 ciType* throw_type = x->exception()->exact_type(); | |
1980 if (throw_type == NULL) { | |
1981 type_is_exact = false; | |
1982 throw_type = x->exception()->declared_type(); | |
1983 } | |
1984 if (throw_type != NULL && throw_type->is_instance_klass()) { | |
1985 ciInstanceKlass* throw_klass = (ciInstanceKlass*)throw_type; | |
1986 unwind = !x->exception_handlers()->could_catch(throw_klass, type_is_exact); | |
1987 } | |
1988 } | |
1989 | |
1990 // do null check before moving exception oop into fixed register | |
1991 // to avoid a fixed interval with an oop during the null check. | |
1992 // Use a copy of the CodeEmitInfo because debug information is | |
1993 // different for null_check and throw. | |
1994 if (GenerateCompilerNullChecks && | |
1995 (x->exception()->as_NewInstance() == NULL && x->exception()->as_ExceptionObject() == NULL)) { | |
1996 // if the exception object wasn't created using new then it might be null. | |
1819 | 1997 __ null_check(exception_opr, new CodeEmitInfo(info, x->state()->copy(ValueStack::ExceptionState, x->state()->bci()))); |
0 | 1998 } |
1999 | |
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2000 if (compilation()->env()->jvmti_can_post_on_exceptions()) { |
0 | 2001 // we need to go through the exception lookup path to get JVMTI |
2002 // notification done | |
2003 unwind = false; | |
2004 } | |
2005 | |
2006 // move exception oop into fixed register | |
2007 __ move(exception_opr, exceptionOopOpr()); | |
2008 | |
2009 if (unwind) { | |
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2010 __ unwind_exception(exceptionOopOpr()); |
0 | 2011 } else { |
2012 __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info); | |
2013 } | |
2014 } | |
2015 | |
2016 | |
2017 void LIRGenerator::do_RoundFP(RoundFP* x) { | |
2018 LIRItem input(x->input(), this); | |
2019 input.load_item(); | |
2020 LIR_Opr input_opr = input.result(); | |
2021 assert(input_opr->is_register(), "why round if value is not in a register?"); | |
2022 assert(input_opr->is_single_fpu() || input_opr->is_double_fpu(), "input should be floating-point value"); | |
2023 if (input_opr->is_single_fpu()) { | |
2024 set_result(x, round_item(input_opr)); // This code path not currently taken | |
2025 } else { | |
2026 LIR_Opr result = new_register(T_DOUBLE); | |
2027 set_vreg_flag(result, must_start_in_memory); | |
2028 __ roundfp(input_opr, LIR_OprFact::illegalOpr, result); | |
2029 set_result(x, result); | |
2030 } | |
2031 } | |
2032 | |
2033 void LIRGenerator::do_UnsafeGetRaw(UnsafeGetRaw* x) { | |
2034 LIRItem base(x->base(), this); | |
2035 LIRItem idx(this); | |
2036 | |
2037 base.load_item(); | |
2038 if (x->has_index()) { | |
2039 idx.set_instruction(x->index()); | |
2040 idx.load_nonconstant(); | |
2041 } | |
2042 | |
2043 LIR_Opr reg = rlock_result(x, x->basic_type()); | |
2044 | |
2045 int log2_scale = 0; | |
2046 if (x->has_index()) { | |
2047 assert(x->index()->type()->tag() == intTag, "should not find non-int index"); | |
2048 log2_scale = x->log2_scale(); | |
2049 } | |
2050 | |
2051 assert(!x->has_index() || idx.value() == x->index(), "should match"); | |
2052 | |
2053 LIR_Opr base_op = base.result(); | |
2054 #ifndef _LP64 | |
2055 if (x->base()->type()->tag() == longTag) { | |
2056 base_op = new_register(T_INT); | |
2057 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
2058 } else { | |
2059 assert(x->base()->type()->tag() == intTag, "must be"); | |
2060 } | |
2061 #endif | |
2062 | |
2063 BasicType dst_type = x->basic_type(); | |
2064 LIR_Opr index_op = idx.result(); | |
2065 | |
2066 LIR_Address* addr; | |
2067 if (index_op->is_constant()) { | |
2068 assert(log2_scale == 0, "must not have a scale"); | |
2069 addr = new LIR_Address(base_op, index_op->as_jint(), dst_type); | |
2070 } else { | |
304 | 2071 #ifdef X86 |
1060 | 2072 #ifdef _LP64 |
2073 if (!index_op->is_illegal() && index_op->type() == T_INT) { | |
2074 LIR_Opr tmp = new_pointer_register(); | |
2075 __ convert(Bytecodes::_i2l, index_op, tmp); | |
2076 index_op = tmp; | |
2077 } | |
2078 #endif | |
0 | 2079 addr = new LIR_Address(base_op, index_op, LIR_Address::Scale(log2_scale), 0, dst_type); |
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2080 #elif defined(ARM) |
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2081 addr = generate_address(base_op, index_op, log2_scale, 0, dst_type); |
0 | 2082 #else |
2083 if (index_op->is_illegal() || log2_scale == 0) { | |
1060 | 2084 #ifdef _LP64 |
2085 if (!index_op->is_illegal() && index_op->type() == T_INT) { | |
2086 LIR_Opr tmp = new_pointer_register(); | |
2087 __ convert(Bytecodes::_i2l, index_op, tmp); | |
2088 index_op = tmp; | |
2089 } | |
2090 #endif | |
0 | 2091 addr = new LIR_Address(base_op, index_op, dst_type); |
2092 } else { | |
1060 | 2093 LIR_Opr tmp = new_pointer_register(); |
0 | 2094 __ shift_left(index_op, log2_scale, tmp); |
2095 addr = new LIR_Address(base_op, tmp, dst_type); | |
2096 } | |
2097 #endif | |
2098 } | |
2099 | |
2100 if (x->may_be_unaligned() && (dst_type == T_LONG || dst_type == T_DOUBLE)) { | |
2101 __ unaligned_move(addr, reg); | |
2102 } else { | |
2002 | 2103 if (dst_type == T_OBJECT && x->is_wide()) { |
2104 __ move_wide(addr, reg); | |
2105 } else { | |
2106 __ move(addr, reg); | |
2107 } | |
0 | 2108 } |
2109 } | |
2110 | |
2111 | |
2112 void LIRGenerator::do_UnsafePutRaw(UnsafePutRaw* x) { | |
2113 int log2_scale = 0; | |
2114 BasicType type = x->basic_type(); | |
2115 | |
2116 if (x->has_index()) { | |
2117 assert(x->index()->type()->tag() == intTag, "should not find non-int index"); | |
2118 log2_scale = x->log2_scale(); | |
2119 } | |
2120 | |
2121 LIRItem base(x->base(), this); | |
2122 LIRItem value(x->value(), this); | |
2123 LIRItem idx(this); | |
2124 | |
2125 base.load_item(); | |
2126 if (x->has_index()) { | |
2127 idx.set_instruction(x->index()); | |
2128 idx.load_item(); | |
2129 } | |
2130 | |
2131 if (type == T_BYTE || type == T_BOOLEAN) { | |
2132 value.load_byte_item(); | |
2133 } else { | |
2134 value.load_item(); | |
2135 } | |
2136 | |
2137 set_no_result(x); | |
2138 | |
2139 LIR_Opr base_op = base.result(); | |
2140 #ifndef _LP64 | |
2141 if (x->base()->type()->tag() == longTag) { | |
2142 base_op = new_register(T_INT); | |
2143 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
2144 } else { | |
2145 assert(x->base()->type()->tag() == intTag, "must be"); | |
2146 } | |
2147 #endif | |
2148 | |
2149 LIR_Opr index_op = idx.result(); | |
2150 if (log2_scale != 0) { | |
2151 // temporary fix (platform dependent code without shift on Intel would be better) | |
1060 | 2152 index_op = new_pointer_register(); |
2153 #ifdef _LP64 | |
2154 if(idx.result()->type() == T_INT) { | |
2155 __ convert(Bytecodes::_i2l, idx.result(), index_op); | |
2156 } else { | |
2157 #endif | |
1681
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|
2158 // TODO: ARM also allows embedded shift in the address |
1060 | 2159 __ move(idx.result(), index_op); |
2160 #ifdef _LP64 | |
2161 } | |
2162 #endif | |
0 | 2163 __ shift_left(index_op, log2_scale, index_op); |
2164 } | |
1060 | 2165 #ifdef _LP64 |
2166 else if(!index_op->is_illegal() && index_op->type() == T_INT) { | |
2167 LIR_Opr tmp = new_pointer_register(); | |
2168 __ convert(Bytecodes::_i2l, index_op, tmp); | |
2169 index_op = tmp; | |
2170 } | |
2171 #endif | |
0 | 2172 |
2173 LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type()); | |
2174 __ move(value.result(), addr); | |
2175 } | |
2176 | |
2177 | |
2178 void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) { | |
2179 BasicType type = x->basic_type(); | |
2180 LIRItem src(x->object(), this); | |
2181 LIRItem off(x->offset(), this); | |
2182 | |
2183 off.load_item(); | |
2184 src.load_item(); | |
2185 | |
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2186 LIR_Opr value = rlock_result(x, x->basic_type()); |
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|
2187 |
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|
2188 get_Object_unsafe(value, src.result(), off.result(), type, x->is_volatile()); |
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|
2189 |
8001
db9981fd3124
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jprovino
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|
2190 #if INCLUDE_ALL_GCS |
3249
e1162778c1c8
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|
2191 // We might be reading the value of the referent field of a |
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|
2192 // Reference object in order to attach it back to the live |
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|
2193 // object graph. If G1 is enabled then we need to record |
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|
2194 // the value that is being returned in an SATB log buffer. |
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|
2195 // |
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|
2196 // We need to generate code similar to the following... |
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|
2197 // |
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|
2198 // if (offset == java_lang_ref_Reference::referent_offset) { |
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|
2199 // if (src != NULL) { |
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|
2200 // if (klass(src)->reference_type() != REF_NONE) { |
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|
2201 // pre_barrier(..., value, ...); |
3249
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|
2202 // } |
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|
2203 // } |
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|
2204 // } |
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|
2205 |
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|
2206 if (UseG1GC && type == T_OBJECT) { |
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|
2207 bool gen_pre_barrier = true; // Assume we need to generate pre_barrier. |
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|
2208 bool gen_offset_check = true; // Assume we need to generate the offset guard. |
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|
2209 bool gen_source_check = true; // Assume we need to check the src object for null. |
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|
2210 bool gen_type_check = true; // Assume we need to check the reference_type. |
3249
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|
2211 |
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|
2212 if (off.is_constant()) { |
3254
59766fd005ff
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|
2213 jlong off_con = (off.type()->is_int() ? |
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|
2214 (jlong) off.get_jint_constant() : |
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|
2215 off.get_jlong_constant()); |
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|
2216 |
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|
2217 |
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|
2218 if (off_con != (jlong) java_lang_ref_Reference::referent_offset) { |
3249
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|
2219 // The constant offset is something other than referent_offset. |
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|
2220 // We can skip generating/checking the remaining guards and |
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|
2221 // skip generation of the code stub. |
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2222 gen_pre_barrier = false; |
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|
2223 } else { |
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2224 // The constant offset is the same as referent_offset - |
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2225 // we do not need to generate a runtime offset check. |
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|
2226 gen_offset_check = false; |
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|
2227 } |
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|
2228 } |
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|
2229 |
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|
2230 // We don't need to generate stub if the source object is an array |
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2231 if (gen_pre_barrier && src.type()->is_array()) { |
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|
2232 gen_pre_barrier = false; |
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|
2233 } |
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|
2234 |
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2235 if (gen_pre_barrier) { |
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2236 // We still need to continue with the checks. |
e1162778c1c8
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2237 if (src.is_constant()) { |
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|
2238 ciObject* src_con = src.get_jobject_constant(); |
10397
075ea888b039
8010724: [parfait] Null pointer dereference in hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
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10116
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|
2239 guarantee(src_con != NULL, "no source constant"); |
3249
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|
2240 |
e1162778c1c8
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|
2241 if (src_con->is_null_object()) { |
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2242 // The constant src object is null - We can skip |
e1162778c1c8
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2243 // generating the code stub. |
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|
2244 gen_pre_barrier = false; |
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2245 } else { |
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|
2246 // Non-null constant source object. We still have to generate |
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|
2247 // the slow stub - but we don't need to generate the runtime |
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|
2248 // null object check. |
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|
2249 gen_source_check = false; |
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|
2250 } |
e1162778c1c8
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|
2251 } |
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|
2252 } |
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2253 if (gen_pre_barrier && !PatchALot) { |
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2254 // Can the klass of object be statically determined to be |
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2255 // a sub-class of Reference? |
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|
2256 ciType* type = src.value()->declared_type(); |
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2257 if ((type != NULL) && type->is_loaded()) { |
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2258 if (type->is_subtype_of(compilation()->env()->Reference_klass())) { |
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2259 gen_type_check = false; |
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2260 } else if (type->is_klass() && |
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2261 !compilation()->env()->Object_klass()->is_subtype_of(type->as_klass())) { |
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2262 // Not Reference and not Object klass. |
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2263 gen_pre_barrier = false; |
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2264 } |
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2265 } |
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2266 } |
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|
2267 |
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2268 if (gen_pre_barrier) { |
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|
2269 LabelObj* Lcont = new LabelObj(); |
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2270 |
e1162778c1c8
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|
2271 // We can have generate one runtime check here. Let's start with |
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2272 // the offset check. |
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2273 if (gen_offset_check) { |
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2274 // if (offset != referent_offset) -> continue |
3254
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2275 // If offset is an int then we can do the comparison with the |
59766fd005ff
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|
2276 // referent_offset constant; otherwise we need to move |
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2277 // referent_offset into a temporary register and generate |
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|
2278 // a reg-reg compare. |
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|
2279 |
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|
2280 LIR_Opr referent_off; |
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|
2281 |
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2282 if (off.type()->is_int()) { |
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|
2283 referent_off = LIR_OprFact::intConst(java_lang_ref_Reference::referent_offset); |
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|
2284 } else { |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2285 assert(off.type()->is_long(), "what else?"); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2286 referent_off = new_register(T_LONG); |
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2287 __ 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
changeset
|
2288 } |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2289 __ cmp(lir_cond_notEqual, off.result(), referent_off); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2290 __ branch(lir_cond_notEqual, as_BasicType(off.type()), Lcont->label()); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2291 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2292 if (gen_source_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2293 // offset is a const and equals referent offset |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2294 // if (source == null) -> continue |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2295 __ 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
changeset
|
2296 __ 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
changeset
|
2297 } |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2298 LIR_Opr src_klass = new_register(T_OBJECT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2299 if (gen_type_check) { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2300 // We have determined that offset == referent_offset && src != null. |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2301 // if (src->_klass->_reference_type == REF_NONE) -> continue |
12000
8d77d02828d9
8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
twisti
parents:
11080
diff
changeset
|
2302 __ 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
|
2303 LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE); |
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2304 LIR_Opr reference_type = new_register(T_INT); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2305 __ move(reference_type_addr, reference_type); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2306 __ cmp(lir_cond_equal, reference_type, LIR_OprFact::intConst(REF_NONE)); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2307 __ branch(lir_cond_equal, T_INT, Lcont->label()); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2308 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2309 { |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2310 // We have determined that src->_klass->_reference_type != REF_NONE |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2311 // so register the value in the referent field with the pre-barrier. |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2312 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2313 value /* pre_val */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2314 false /* do_load */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2315 false /* patch */, |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2316 NULL /* info */); |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2317 } |
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2318 __ branch_destination(Lcont->label()); |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2319 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2320 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
changeset
|
2321 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2322 |
0 | 2323 if (x->is_volatile() && os::is_MP()) __ membar_acquire(); |
2324 } | |
2325 | |
2326 | |
2327 void LIRGenerator::do_UnsafePutObject(UnsafePutObject* x) { | |
2328 BasicType type = x->basic_type(); | |
2329 LIRItem src(x->object(), this); | |
2330 LIRItem off(x->offset(), this); | |
2331 LIRItem data(x->value(), this); | |
2332 | |
2333 src.load_item(); | |
2334 if (type == T_BOOLEAN || type == T_BYTE) { | |
2335 data.load_byte_item(); | |
2336 } else { | |
2337 data.load_item(); | |
2338 } | |
2339 off.load_item(); | |
2340 | |
2341 set_no_result(x); | |
2342 | |
2343 if (x->is_volatile() && os::is_MP()) __ membar_release(); | |
2344 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
|
2345 if (x->is_volatile() && os::is_MP()) __ membar(); |
0 | 2346 } |
2347 | |
2348 | |
2349 void LIRGenerator::do_UnsafePrefetch(UnsafePrefetch* x, bool is_store) { | |
2350 LIRItem src(x->object(), this); | |
2351 LIRItem off(x->offset(), this); | |
2352 | |
2353 src.load_item(); | |
2354 if (off.is_constant() && can_inline_as_constant(x->offset())) { | |
2355 // let it be a constant | |
2356 off.dont_load_item(); | |
2357 } else { | |
2358 off.load_item(); | |
2359 } | |
2360 | |
2361 set_no_result(x); | |
2362 | |
2363 LIR_Address* addr = generate_address(src.result(), off.result(), 0, 0, T_BYTE); | |
2364 __ prefetch(addr, is_store); | |
2365 } | |
2366 | |
2367 | |
2368 void LIRGenerator::do_UnsafePrefetchRead(UnsafePrefetchRead* x) { | |
2369 do_UnsafePrefetch(x, false); | |
2370 } | |
2371 | |
2372 | |
2373 void LIRGenerator::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) { | |
2374 do_UnsafePrefetch(x, true); | |
2375 } | |
2376 | |
2377 | |
2378 void LIRGenerator::do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux) { | |
2379 int lng = x->length(); | |
2380 | |
2381 for (int i = 0; i < lng; i++) { | |
2382 SwitchRange* one_range = x->at(i); | |
2383 int low_key = one_range->low_key(); | |
2384 int high_key = one_range->high_key(); | |
2385 BlockBegin* dest = one_range->sux(); | |
2386 if (low_key == high_key) { | |
2387 __ cmp(lir_cond_equal, value, low_key); | |
2388 __ branch(lir_cond_equal, T_INT, dest); | |
2389 } else if (high_key - low_key == 1) { | |
2390 __ cmp(lir_cond_equal, value, low_key); | |
2391 __ branch(lir_cond_equal, T_INT, dest); | |
2392 __ cmp(lir_cond_equal, value, high_key); | |
2393 __ branch(lir_cond_equal, T_INT, dest); | |
2394 } else { | |
2395 LabelObj* L = new LabelObj(); | |
2396 __ cmp(lir_cond_less, value, low_key); | |
4816 | 2397 __ branch(lir_cond_less, T_INT, L->label()); |
0 | 2398 __ cmp(lir_cond_lessEqual, value, high_key); |
2399 __ branch(lir_cond_lessEqual, T_INT, dest); | |
2400 __ branch_destination(L->label()); | |
2401 } | |
2402 } | |
2403 __ jump(default_sux); | |
2404 } | |
2405 | |
2406 | |
2407 SwitchRangeArray* LIRGenerator::create_lookup_ranges(TableSwitch* x) { | |
2408 SwitchRangeList* res = new SwitchRangeList(); | |
2409 int len = x->length(); | |
2410 if (len > 0) { | |
2411 BlockBegin* sux = x->sux_at(0); | |
2412 int key = x->lo_key(); | |
2413 BlockBegin* default_sux = x->default_sux(); | |
2414 SwitchRange* range = new SwitchRange(key, sux); | |
2415 for (int i = 0; i < len; i++, key++) { | |
2416 BlockBegin* new_sux = x->sux_at(i); | |
2417 if (sux == new_sux) { | |
2418 // still in same range | |
2419 range->set_high_key(key); | |
2420 } else { | |
2421 // skip tests which explicitly dispatch to the default | |
2422 if (sux != default_sux) { | |
2423 res->append(range); | |
2424 } | |
2425 range = new SwitchRange(key, new_sux); | |
2426 } | |
2427 sux = new_sux; | |
2428 } | |
2429 if (res->length() == 0 || res->last() != range) res->append(range); | |
2430 } | |
2431 return res; | |
2432 } | |
2433 | |
2434 | |
2435 // we expect the keys to be sorted by increasing value | |
2436 SwitchRangeArray* LIRGenerator::create_lookup_ranges(LookupSwitch* x) { | |
2437 SwitchRangeList* res = new SwitchRangeList(); | |
2438 int len = x->length(); | |
2439 if (len > 0) { | |
2440 BlockBegin* default_sux = x->default_sux(); | |
2441 int key = x->key_at(0); | |
2442 BlockBegin* sux = x->sux_at(0); | |
2443 SwitchRange* range = new SwitchRange(key, sux); | |
2444 for (int i = 1; i < len; i++) { | |
2445 int new_key = x->key_at(i); | |
2446 BlockBegin* new_sux = x->sux_at(i); | |
2447 if (key+1 == new_key && sux == new_sux) { | |
2448 // still in same range | |
2449 range->set_high_key(new_key); | |
2450 } else { | |
2451 // skip tests which explicitly dispatch to the default | |
2452 if (range->sux() != default_sux) { | |
2453 res->append(range); | |
2454 } | |
2455 range = new SwitchRange(new_key, new_sux); | |
2456 } | |
2457 key = new_key; | |
2458 sux = new_sux; | |
2459 } | |
2460 if (res->length() == 0 || res->last() != range) res->append(range); | |
2461 } | |
2462 return res; | |
2463 } | |
2464 | |
2465 | |
2466 void LIRGenerator::do_TableSwitch(TableSwitch* x) { | |
2467 LIRItem tag(x->tag(), this); | |
2468 tag.load_item(); | |
2469 set_no_result(x); | |
2470 | |
2471 if (x->is_safepoint()) { | |
2472 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2473 } | |
2474 | |
2475 // move values into phi locations | |
2476 move_to_phi(x->state()); | |
2477 | |
2478 int lo_key = x->lo_key(); | |
2479 int hi_key = x->hi_key(); | |
2480 int len = x->length(); | |
2481 LIR_Opr value = tag.result(); | |
2482 if (UseTableRanges) { | |
2483 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2484 } else { | |
2485 for (int i = 0; i < len; i++) { | |
2486 __ cmp(lir_cond_equal, value, i + lo_key); | |
2487 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2488 } | |
2489 __ jump(x->default_sux()); | |
2490 } | |
2491 } | |
2492 | |
2493 | |
2494 void LIRGenerator::do_LookupSwitch(LookupSwitch* x) { | |
2495 LIRItem tag(x->tag(), this); | |
2496 tag.load_item(); | |
2497 set_no_result(x); | |
2498 | |
2499 if (x->is_safepoint()) { | |
2500 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
2501 } | |
2502 | |
2503 // move values into phi locations | |
2504 move_to_phi(x->state()); | |
2505 | |
2506 LIR_Opr value = tag.result(); | |
2507 if (UseTableRanges) { | |
2508 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
2509 } else { | |
2510 int len = x->length(); | |
2511 for (int i = 0; i < len; i++) { | |
2512 __ cmp(lir_cond_equal, value, x->key_at(i)); | |
2513 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
2514 } | |
2515 __ jump(x->default_sux()); | |
2516 } | |
2517 } | |
2518 | |
2519 | |
2520 void LIRGenerator::do_Goto(Goto* x) { | |
2521 set_no_result(x); | |
2522 | |
2523 if (block()->next()->as_OsrEntry()) { | |
2524 // need to free up storage used for OSR entry point | |
2525 LIR_Opr osrBuffer = block()->next()->operand(); | |
2526 BasicTypeList signature; | |
2527 signature.append(T_INT); | |
2528 CallingConvention* cc = frame_map()->c_calling_convention(&signature); | |
2529 __ move(osrBuffer, cc->args()->at(0)); | |
2530 __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_end), | |
2531 getThreadTemp(), LIR_OprFact::illegalOpr, cc->args()); | |
2532 } | |
2533 | |
2534 if (x->is_safepoint()) { | |
2535 ValueStack* state = x->state_before() ? x->state_before() : x->state(); | |
2536 | |
2537 // increment backedge counter if needed | |
1783 | 2538 CodeEmitInfo* info = state_for(x, state); |
3997
940513efe83a
7097679: Tiered: events with bad bci to Gotos reduced from Ifs
iveresov
parents:
3964
diff
changeset
|
2539 increment_backedge_counter(info, x->profiled_bci()); |
0 | 2540 CodeEmitInfo* safepoint_info = state_for(x, state); |
2541 __ safepoint(safepoint_poll_register(), safepoint_info); | |
2542 } | |
2543 | |
1783 | 2544 // Gotos can be folded Ifs, handle this case. |
2545 if (x->should_profile()) { | |
2546 ciMethod* method = x->profiled_method(); | |
2547 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
|
2548 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
|
2549 assert(md != NULL, "Sanity"); |
1783 | 2550 ciProfileData* data = md->bci_to_data(x->profiled_bci()); |
2551 assert(data != NULL, "must have profiling data"); | |
2552 int offset; | |
2553 if (x->direction() == Goto::taken) { | |
2554 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2555 offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
2556 } else if (x->direction() == Goto::not_taken) { | |
2557 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
2558 offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
2559 } else { | |
2560 assert(data->is_JumpData(), "need JumpData for branches"); | |
2561 offset = md->byte_offset_of_slot(data, JumpData::taken_offset()); | |
2562 } | |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2563 LIR_Opr md_reg = new_register(T_METADATA); |
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2564 __ metadata2reg(md->constant_encoding(), md_reg); |
1783 | 2565 |
2566 increment_counter(new LIR_Address(md_reg, offset, | |
2567 NOT_LP64(T_INT) LP64_ONLY(T_LONG)), DataLayout::counter_increment); | |
2568 } | |
2569 | |
0 | 2570 // emit phi-instruction move after safepoint since this simplifies |
2571 // describing the state as the safepoint. | |
2572 move_to_phi(x->state()); | |
2573 | |
2574 __ jump(x->default_sux()); | |
2575 } | |
2576 | |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2577 /** |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2578 * 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
|
2579 * |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2580 * @param md MDO the code will update at runtime |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2581 * @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
|
2582 * @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
|
2583 * @param profiled_k current profile |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2584 * @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
|
2585 * @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
|
2586 * 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
|
2587 * @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
|
2588 * @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
|
2589 * @param callee_signature_k signature of callee for obj |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2590 * 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
|
2591 * @return the only klass we know will ever be seen at this profile point |
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8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2592 */ |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2593 ciKlass* LIRGenerator::profile_type(ciMethodData* md, int md_base_offset, int md_offset, intptr_t profiled_k, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
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diff
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|
2594 Value obj, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
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|
2595 ciKlass* callee_signature_k) { |
12875
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8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2596 ciKlass* result = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2597 bool do_null = !not_null && !TypeEntries::was_null_seen(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
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|
2598 bool do_update = !TypeEntries::is_type_unknown(profiled_k); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
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|
2599 // 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
|
2600 // unknown: nothing we can do to improve profiling |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2601 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2602 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2603 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2604 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2605 ciKlass* exact_klass = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2606 Compilation* comp = Compilation::current(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2607 if (do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2608 // try to find exact type, using CHA if possible, so that loading |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
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|
2609 // the klass from the object can be avoided |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2610 ciType* type = obj->exact_type(); |
12875
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12868
diff
changeset
|
2611 if (type == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2612 type = obj->declared_type(); |
12875
d13d7aba8c12
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diff
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|
2613 type = comp->cha_exact_type(type); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2614 } |
d13d7aba8c12
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diff
changeset
|
2615 assert(type == NULL || type->is_klass(), "type should be class"); |
d13d7aba8c12
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diff
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|
2616 exact_klass = (type != NULL && type->is_loaded()) ? (ciKlass*)type : NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
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|
2617 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2618 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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parents:
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diff
changeset
|
2619 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2620 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2621 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2622 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2623 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2624 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2625 ciKlass* exact_signature_k = NULL; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2626 if (do_update) { |
d13d7aba8c12
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diff
changeset
|
2627 // Is the type from the signature exact (the only one possible)? |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
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diff
changeset
|
2628 exact_signature_k = signature_at_call_k->exact_klass(); |
12875
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diff
changeset
|
2629 if (exact_signature_k == NULL) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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parents:
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diff
changeset
|
2630 exact_signature_k = comp->cha_exact_type(signature_at_call_k); |
12875
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diff
changeset
|
2631 } else { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2632 result = exact_signature_k; |
d13d7aba8c12
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diff
changeset
|
2633 // Known statically. No need to emit any code: prevent |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
2634 // LIR_Assembler::emit_profile_type() from emitting useless code |
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8023657: New type profiling points: arguments to call
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diff
changeset
|
2635 profiled_k = ciTypeEntries::with_status(result, profiled_k); |
d13d7aba8c12
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diff
changeset
|
2636 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2637 if (exact_signature_k != NULL && exact_klass != exact_signature_k) { |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
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diff
changeset
|
2638 assert(exact_klass == NULL, "obj and signature disagree?"); |
12875
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12868
diff
changeset
|
2639 // sometimes the type of the signature is better than the best type |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2640 // the compiler has |
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
2641 exact_klass = exact_signature_k; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2642 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2643 if (callee_signature_k != NULL && |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2644 callee_signature_k != signature_at_call_k) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2645 ciKlass* improved_klass = callee_signature_k->exact_klass(); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2646 if (improved_klass == NULL) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2647 improved_klass = comp->cha_exact_type(callee_signature_k); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2648 } |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2649 if (improved_klass != NULL && exact_klass != improved_klass) { |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2650 assert(exact_klass == NULL, "obj and signature disagree?"); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2651 exact_klass = exact_signature_k; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2652 } |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2653 } |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2654 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2655 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2656 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2657 if (!do_null && !do_update) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2658 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2659 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2660 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2661 if (mdp == LIR_OprFact::illegalOpr) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2662 mdp = new_register(T_METADATA); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2663 __ metadata2reg(md->constant_encoding(), mdp); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2664 if (md_base_offset != 0) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2665 LIR_Address* base_type_address = new LIR_Address(mdp, md_base_offset, T_ADDRESS); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2666 mdp = new_pointer_register(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2667 __ leal(LIR_OprFact::address(base_type_address), mdp); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2668 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2669 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2670 LIRItem value(obj, this); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2671 value.load_item(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2672 __ profile_type(new LIR_Address(mdp, md_offset, T_METADATA), |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2673 value.result(), exact_klass, profiled_k, new_pointer_register(), not_null, exact_signature_k != NULL); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2674 return result; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2675 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2676 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2677 // profile parameters on entry to the root of the compilation |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2678 void LIRGenerator::profile_parameters(Base* x) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2679 if (compilation()->profile_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2680 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2681 ciMethodData* md = scope()->method()->method_data_or_null(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2682 assert(md != NULL, "Sanity"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2683 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2684 if (md->parameters_type_data() != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2685 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
changeset
|
2686 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
changeset
|
2687 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2688 for (int java_index = 0, i = 0, j = 0; j < parameters_type_data->number_of_parameters(); i++) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2689 LIR_Opr src = args->at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2690 assert(!src->is_illegal(), "check"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2691 BasicType t = src->type(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2692 if (t == T_OBJECT || t == T_ARRAY) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2693 intptr_t profiled_k = parameters->type(j); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
changeset
|
2694 Local* local = x->state()->local_at(java_index)->as_Local(); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2695 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
|
2696 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
|
2697 profiled_k, local, mdp, false, local->declared_type()->as_klass(), NULL); |
12962
5ccbab1c69f3
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diff
changeset
|
2698 // 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
|
2699 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2700 md->set_parameter_type(j, exact); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2701 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2702 j++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2703 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2704 java_index += type2size[t]; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2705 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2706 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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diff
changeset
|
2707 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2708 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
changeset
|
2709 |
0 | 2710 void LIRGenerator::do_Base(Base* x) { |
2711 __ std_entry(LIR_OprFact::illegalOpr); | |
2712 // Emit moves from physical registers / stack slots to virtual registers | |
2713 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); | |
2714 IRScope* irScope = compilation()->hir()->top_scope(); | |
2715 int java_index = 0; | |
2716 for (int i = 0; i < args->length(); i++) { | |
2717 LIR_Opr src = args->at(i); | |
2718 assert(!src->is_illegal(), "check"); | |
2719 BasicType t = src->type(); | |
2720 | |
2721 // Types which are smaller than int are passed as int, so | |
2722 // correct the type which passed. | |
2723 switch (t) { | |
2724 case T_BYTE: | |
2725 case T_BOOLEAN: | |
2726 case T_SHORT: | |
2727 case T_CHAR: | |
2728 t = T_INT; | |
2729 break; | |
2730 } | |
2731 | |
2732 LIR_Opr dest = new_register(t); | |
2733 __ move(src, dest); | |
2734 | |
2735 // Assign new location to Local instruction for this local | |
2736 Local* local = x->state()->local_at(java_index)->as_Local(); | |
2737 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
|
2738 #ifndef __SOFTFP__ |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2739 // The java calling convention passes double as long and float as int. |
0 | 2740 assert(as_ValueType(t)->tag() == local->type()->tag(), "check"); |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1584
diff
changeset
|
2741 #endif // __SOFTFP__ |
0 | 2742 local->set_operand(dest); |
2743 _instruction_for_operand.at_put_grow(dest->vreg_number(), local, NULL); | |
2744 java_index += type2size[t]; | |
2745 } | |
2746 | |
780
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579
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2747 if (compilation()->env()->dtrace_method_probes()) { |
0 | 2748 BasicTypeList signature; |
2002 | 2749 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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2750 signature.append(T_METADATA); // Method* |
0 | 2751 LIR_OprList* args = new LIR_OprList(); |
2752 args->append(getThreadPointer()); | |
6739
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2753 LIR_Opr meth = new_register(T_METADATA); |
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2754 __ metadata2reg(method()->constant_encoding(), meth); |
0 | 2755 args->append(meth); |
2756 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), voidType, NULL); | |
2757 } | |
2758 | |
2759 if (method()->is_synchronized()) { | |
2760 LIR_Opr obj; | |
2761 if (method()->is_static()) { | |
2762 obj = new_register(T_OBJECT); | |
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819
diff
changeset
|
2763 __ oop2reg(method()->holder()->java_mirror()->constant_encoding(), obj); |
0 | 2764 } else { |
2765 Local* receiver = x->state()->local_at(0)->as_Local(); | |
2766 assert(receiver != NULL, "must already exist"); | |
2767 obj = receiver->operand(); | |
2768 } | |
2769 assert(obj->is_valid(), "must be valid"); | |
2770 | |
2771 if (method()->is_synchronized() && GenerateSynchronizationCode) { | |
2772 LIR_Opr lock = new_register(T_INT); | |
2773 __ load_stack_address_monitor(0, lock); | |
2774 | |
8860 | 2775 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, x->check_flag(Instruction::DeoptimizeOnException)); |
0 | 2776 CodeStub* slow_path = new MonitorEnterStub(obj, lock, info); |
2777 | |
2778 // receiver is guaranteed non-NULL so don't need CodeEmitInfo | |
2779 __ lock_object(syncTempOpr(), obj, lock, new_register(T_OBJECT), slow_path, NULL); | |
2780 } | |
2781 } | |
2782 | |
2783 // increment invocation counters if needed | |
1783 | 2784 if (!method()->is_accessor()) { // Accessors do not have MDOs, so no counting. |
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8026251: New type profiling points: parameters to methods
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|
2785 profile_parameters(x); |
8860 | 2786 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, false); |
1783 | 2787 increment_invocation_counter(info); |
2788 } | |
0 | 2789 |
2790 // all blocks with a successor must end with an unconditional jump | |
2791 // to the successor even if they are consecutive | |
2792 __ jump(x->default_sux()); | |
2793 } | |
2794 | |
2795 | |
2796 void LIRGenerator::do_OsrEntry(OsrEntry* x) { | |
2797 // construct our frame and model the production of incoming pointer | |
2798 // to the OSR buffer. | |
2799 __ osr_entry(LIR_Assembler::osrBufferPointer()); | |
2800 LIR_Opr result = rlock_result(x); | |
2801 __ move(LIR_Assembler::osrBufferPointer(), result); | |
2802 } | |
2803 | |
2804 | |
2805 void LIRGenerator::invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list) { | |
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7192167: JSR 292: C1 has old broken code which needs to be removed
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2806 assert(args->length() == arg_list->length(), |
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7192167: JSR 292: C1 has old broken code which needs to be removed
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|
2807 err_msg_res("args=%d, arg_list=%d", args->length(), arg_list->length())); |
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2808 for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) { |
0 | 2809 LIRItem* param = args->at(i); |
2810 LIR_Opr loc = arg_list->at(i); | |
2811 if (loc->is_register()) { | |
2812 param->load_item_force(loc); | |
2813 } else { | |
2814 LIR_Address* addr = loc->as_address_ptr(); | |
2815 param->load_for_store(addr->type()); | |
2002 | 2816 if (addr->type() == T_OBJECT) { |
2817 __ move_wide(param->result(), addr); | |
2818 } else | |
2819 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
2820 __ unaligned_move(param->result(), addr); | |
2821 } else { | |
2822 __ move(param->result(), addr); | |
2823 } | |
0 | 2824 } |
2825 } | |
2826 | |
2827 if (x->has_receiver()) { | |
2828 LIRItem* receiver = args->at(0); | |
2829 LIR_Opr loc = arg_list->at(0); | |
2830 if (loc->is_register()) { | |
2831 receiver->load_item_force(loc); | |
2832 } else { | |
2833 assert(loc->is_address(), "just checking"); | |
2834 receiver->load_for_store(T_OBJECT); | |
2002 | 2835 __ move_wide(receiver->result(), loc->as_address_ptr()); |
0 | 2836 } |
2837 } | |
2838 } | |
2839 | |
2840 | |
2841 // Visits all arguments, returns appropriate items without loading them | |
2842 LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) { | |
2843 LIRItemList* argument_items = new LIRItemList(); | |
2844 if (x->has_receiver()) { | |
2845 LIRItem* receiver = new LIRItem(x->receiver(), this); | |
2846 argument_items->append(receiver); | |
2847 } | |
2848 for (int i = 0; i < x->number_of_arguments(); i++) { | |
2849 LIRItem* param = new LIRItem(x->argument_at(i), this); | |
2850 argument_items->append(param); | |
2851 } | |
2852 return argument_items; | |
2853 } | |
2854 | |
2855 | |
2856 // The invoke with receiver has following phases: | |
2857 // a) traverse and load/lock receiver; | |
2858 // b) traverse all arguments -> item-array (invoke_visit_argument) | |
2859 // c) push receiver on stack | |
2860 // d) load each of the items and push on stack | |
2861 // e) unlock receiver | |
2862 // f) move receiver into receiver-register %o0 | |
2863 // g) lock result registers and emit call operation | |
2864 // | |
2865 // Before issuing a call, we must spill-save all values on stack | |
2866 // that are in caller-save register. "spill-save" moves thos registers | |
2867 // either in a free callee-save register or spills them if no free | |
2868 // callee save register is available. | |
2869 // | |
2870 // The problem is where to invoke spill-save. | |
2871 // - if invoked between e) and f), we may lock callee save | |
2872 // register in "spill-save" that destroys the receiver register | |
2873 // before f) is executed | |
2874 // - if we rearange the f) to be earlier, by loading %o0, it | |
2875 // may destroy a value on the stack that is currently in %o0 | |
2876 // and is waiting to be spilled | |
2877 // - if we keep the receiver locked while doing spill-save, | |
2878 // we cannot spill it as it is spill-locked | |
2879 // | |
2880 void LIRGenerator::do_Invoke(Invoke* x) { | |
2881 CallingConvention* cc = frame_map()->java_calling_convention(x->signature(), true); | |
2882 | |
2883 LIR_OprList* arg_list = cc->args(); | |
2884 LIRItemList* args = invoke_visit_arguments(x); | |
2885 LIR_Opr receiver = LIR_OprFact::illegalOpr; | |
2886 | |
2887 // setup result register | |
2888 LIR_Opr result_register = LIR_OprFact::illegalOpr; | |
2889 if (x->type() != voidType) { | |
2890 result_register = result_register_for(x->type()); | |
2891 } | |
2892 | |
2893 CodeEmitInfo* info = state_for(x, x->state()); | |
2894 | |
2895 invoke_load_arguments(x, args, arg_list); | |
2896 | |
2897 if (x->has_receiver()) { | |
2898 args->at(0)->load_item_force(LIR_Assembler::receiverOpr()); | |
2899 receiver = args->at(0)->result(); | |
2900 } | |
2901 | |
2902 // emit invoke code | |
2903 bool optimized = x->target_is_loaded() && x->target_is_final(); | |
2904 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | |
2905 | |
1564 | 2906 // JSR 292 |
2907 // Preserve the SP over MethodHandle call sites. | |
2908 ciMethod* target = x->target(); | |
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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2909 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
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|
2910 target->is_method_handle_intrinsic() || |
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|
2911 target->is_compiled_lambda_form()); |
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2912 if (is_method_handle_invoke) { |
1564 | 2913 info->set_is_method_handle_invoke(true); |
2914 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); | |
2915 } | |
2916 | |
0 | 2917 switch (x->code()) { |
2918 case Bytecodes::_invokestatic: | |
1564 | 2919 __ call_static(target, result_register, |
0 | 2920 SharedRuntime::get_resolve_static_call_stub(), |
2921 arg_list, info); | |
2922 break; | |
2923 case Bytecodes::_invokespecial: | |
2924 case Bytecodes::_invokevirtual: | |
2925 case Bytecodes::_invokeinterface: | |
2926 // for final target we still produce an inline cache, in order | |
2927 // to be able to call mixed mode | |
2928 if (x->code() == Bytecodes::_invokespecial || optimized) { | |
1564 | 2929 __ call_opt_virtual(target, receiver, result_register, |
0 | 2930 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
2931 arg_list, info); | |
2932 } else if (x->vtable_index() < 0) { | |
1564 | 2933 __ call_icvirtual(target, receiver, result_register, |
0 | 2934 SharedRuntime::get_resolve_virtual_call_stub(), |
2935 arg_list, info); | |
2936 } else { | |
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|
2937 int entry_offset = InstanceKlass::vtable_start_offset() + x->vtable_index() * vtableEntry::size(); |
0 | 2938 int vtable_offset = entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); |
1564 | 2939 __ call_virtual(target, receiver, result_register, vtable_offset, arg_list, info); |
0 | 2940 } |
2941 break; | |
1295 | 2942 case Bytecodes::_invokedynamic: { |
1564 | 2943 __ call_dynamic(target, receiver, result_register, |
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7192167: JSR 292: C1 has old broken code which needs to be removed
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|
2944 SharedRuntime::get_resolve_static_call_stub(), |
1295 | 2945 arg_list, info); |
2946 break; | |
2947 } | |
0 | 2948 default: |
6145
e2fe93124108
7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
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6143
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changeset
|
2949 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
0 | 2950 break; |
2951 } | |
2952 | |
1564 | 2953 // JSR 292 |
2954 // Restore the SP after MethodHandle call sites. | |
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|
2955 if (is_method_handle_invoke) { |
1564 | 2956 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
2957 } | |
2958 | |
0 | 2959 if (x->type()->is_float() || x->type()->is_double()) { |
2960 // Force rounding of results from non-strictfp when in strictfp | |
2961 // scope (or when we don't know the strictness of the callee, to | |
2962 // be safe.) | |
2963 if (method()->is_strict()) { | |
2964 if (!x->target_is_loaded() || !x->target_is_strictfp()) { | |
2965 result_register = round_item(result_register); | |
2966 } | |
2967 } | |
2968 } | |
2969 | |
2970 if (result_register->is_valid()) { | |
2971 LIR_Opr result = rlock_result(x); | |
2972 __ move(result_register, result); | |
2973 } | |
2974 } | |
2975 | |
2976 | |
2977 void LIRGenerator::do_FPIntrinsics(Intrinsic* x) { | |
2978 assert(x->number_of_arguments() == 1, "wrong type"); | |
2979 LIRItem value (x->argument_at(0), this); | |
2980 LIR_Opr reg = rlock_result(x); | |
2981 value.load_item(); | |
2982 LIR_Opr tmp = force_to_spill(value.result(), as_BasicType(x->type())); | |
2983 __ move(tmp, reg); | |
2984 } | |
2985 | |
2986 | |
2987 | |
2988 // Code for : x->x() {x->cond()} x->y() ? x->tval() : x->fval() | |
2989 void LIRGenerator::do_IfOp(IfOp* x) { | |
2990 #ifdef ASSERT | |
2991 { | |
2992 ValueTag xtag = x->x()->type()->tag(); | |
2993 ValueTag ttag = x->tval()->type()->tag(); | |
2994 assert(xtag == intTag || xtag == objectTag, "cannot handle others"); | |
2995 assert(ttag == addressTag || ttag == intTag || ttag == objectTag || ttag == longTag, "cannot handle others"); | |
2996 assert(ttag == x->fval()->type()->tag(), "cannot handle others"); | |
2997 } | |
2998 #endif | |
2999 | |
3000 LIRItem left(x->x(), this); | |
3001 LIRItem right(x->y(), this); | |
3002 left.load_item(); | |
3003 if (can_inline_as_constant(right.value())) { | |
3004 right.dont_load_item(); | |
3005 } else { | |
3006 right.load_item(); | |
3007 } | |
3008 | |
3009 LIRItem t_val(x->tval(), this); | |
3010 LIRItem f_val(x->fval(), this); | |
3011 t_val.dont_load_item(); | |
3012 f_val.dont_load_item(); | |
3013 LIR_Opr reg = rlock_result(x); | |
3014 | |
3015 __ cmp(lir_cond(x->cond()), left.result(), right.result()); | |
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037c727f35fb
7009231: C1: Incorrect CAS code for longs on SPARC 32bit
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|
3016 __ cmove(lir_cond(x->cond()), t_val.result(), f_val.result(), reg, as_BasicType(x->x()->type())); |
0 | 3017 } |
3018 | |
6006
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3019 void LIRGenerator::do_RuntimeCall(address routine, int expected_arguments, Intrinsic* x) { |
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|
3020 assert(x->number_of_arguments() == expected_arguments, "wrong type"); |
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|
3021 LIR_Opr reg = result_register_for(x->type()); |
0105f367a14c
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|
3022 __ call_runtime_leaf(routine, getThreadTemp(), |
0105f367a14c
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|
3023 reg, new LIR_OprList()); |
0105f367a14c
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|
3024 LIR_Opr result = rlock_result(x); |
0105f367a14c
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|
3025 __ move(reg, result); |
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|
3026 } |
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|
3027 |
0105f367a14c
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|
3028 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
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|
3029 void LIRGenerator::do_ThreadIDIntrinsic(Intrinsic* x) { |
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
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|
3030 LIR_Opr thread = getThreadPointer(); |
0105f367a14c
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|
3031 LIR_Opr osthread = new_pointer_register(); |
0105f367a14c
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|
3032 __ move(new LIR_Address(thread, in_bytes(JavaThread::osthread_offset()), osthread->type()), osthread); |
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|
3033 size_t thread_id_size = OSThread::thread_id_size(); |
0105f367a14c
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|
3034 if (thread_id_size == (size_t) BytesPerLong) { |
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|
3035 LIR_Opr id = new_register(T_LONG); |
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|
3036 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_LONG), id); |
0105f367a14c
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|
3037 __ convert(Bytecodes::_l2i, id, rlock_result(x)); |
0105f367a14c
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|
3038 } else if (thread_id_size == (size_t) BytesPerInt) { |
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|
3039 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_INT), rlock_result(x)); |
0105f367a14c
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|
3040 } else { |
0105f367a14c
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|
3041 ShouldNotReachHere(); |
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|
3042 } |
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|
3043 } |
0105f367a14c
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|
3044 |
0105f367a14c
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|
3045 void LIRGenerator::do_ClassIDIntrinsic(Intrinsic* x) { |
0105f367a14c
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diff
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|
3046 CodeEmitInfo* info = state_for(x); |
0105f367a14c
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4966
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changeset
|
3047 CodeEmitInfo* info2 = new CodeEmitInfo(info); // Clone for the second null check |
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6616
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|
3048 BasicType klass_pointer_type = NOT_LP64(T_INT) LP64_ONLY(T_LONG); |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
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|
3049 assert(info != NULL, "must have info"); |
0105f367a14c
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|
3050 LIRItem arg(x->argument_at(1), this); |
0105f367a14c
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|
3051 arg.load_item(); |
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da91efe96a93
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|
3052 LIR_Opr klass = new_pointer_register(); |
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|
3053 __ move(new LIR_Address(arg.result(), java_lang_Class::klass_offset_in_bytes(), klass_pointer_type), klass, info); |
6006
0105f367a14c
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|
3054 LIR_Opr id = new_register(T_LONG); |
0105f367a14c
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diff
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|
3055 ByteSize offset = TRACE_ID_OFFSET; |
0105f367a14c
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changeset
|
3056 LIR_Address* trace_id_addr = new LIR_Address(klass, in_bytes(offset), T_LONG); |
0105f367a14c
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|
3057 __ move(trace_id_addr, id); |
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|
3058 __ logical_or(id, LIR_OprFact::longConst(0x01l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3059 __ store(id, trace_id_addr); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3060 __ logical_and(id, LIR_OprFact::longConst(~0x3l), id); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3061 __ move(id, rlock_result(x)); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3062 } |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3063 #endif |
0 | 3064 |
3065 void LIRGenerator::do_Intrinsic(Intrinsic* x) { | |
3066 switch (x->id()) { | |
3067 case vmIntrinsics::_intBitsToFloat : | |
3068 case vmIntrinsics::_doubleToRawLongBits : | |
3069 case vmIntrinsics::_longBitsToDouble : | |
3070 case vmIntrinsics::_floatToRawIntBits : { | |
3071 do_FPIntrinsics(x); | |
3072 break; | |
3073 } | |
3074 | |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3075 #ifdef TRACE_HAVE_INTRINSICS |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3076 case vmIntrinsics::_threadID: do_ThreadIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3077 case vmIntrinsics::_classID: do_ClassIDIntrinsic(x); break; |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3078 case vmIntrinsics::_counterTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3079 do_RuntimeCall(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), 0, x); |
0 | 3080 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3081 #endif |
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 case vmIntrinsics::_currentTimeMillis: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3084 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeMillis), 0, x); |
0 | 3085 break; |
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3086 |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3087 case vmIntrinsics::_nanoTime: |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3088 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeNanos), 0, x); |
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3089 break; |
0 | 3090 |
3091 case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break; | |
6135 | 3092 case vmIntrinsics::_isInstance: do_isInstance(x); break; |
0 | 3093 case vmIntrinsics::_getClass: do_getClass(x); break; |
3094 case vmIntrinsics::_currentThread: do_currentThread(x); break; | |
3095 | |
3096 case vmIntrinsics::_dlog: // fall through | |
3097 case vmIntrinsics::_dlog10: // fall through | |
3098 case vmIntrinsics::_dabs: // fall through | |
3099 case vmIntrinsics::_dsqrt: // fall through | |
3100 case vmIntrinsics::_dtan: // fall through | |
3101 case vmIntrinsics::_dsin : // fall through | |
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3102 case vmIntrinsics::_dcos : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3103 case vmIntrinsics::_dexp : // fall through |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3104 case vmIntrinsics::_dpow : do_MathIntrinsic(x); break; |
0 | 3105 case vmIntrinsics::_arraycopy: do_ArrayCopy(x); break; |
3106 | |
3107 // java.nio.Buffer.checkIndex | |
3108 case vmIntrinsics::_checkIndex: do_NIOCheckIndex(x); break; | |
3109 | |
3110 case vmIntrinsics::_compareAndSwapObject: | |
3111 do_CompareAndSwap(x, objectType); | |
3112 break; | |
3113 case vmIntrinsics::_compareAndSwapInt: | |
3114 do_CompareAndSwap(x, intType); | |
3115 break; | |
3116 case vmIntrinsics::_compareAndSwapLong: | |
3117 do_CompareAndSwap(x, longType); | |
3118 break; | |
3119 | |
7425 | 3120 case vmIntrinsics::_loadFence : |
3121 if (os::is_MP()) __ membar_acquire(); | |
3122 break; | |
3123 case vmIntrinsics::_storeFence: | |
3124 if (os::is_MP()) __ membar_release(); | |
3125 break; | |
3126 case vmIntrinsics::_fullFence : | |
3127 if (os::is_MP()) __ membar(); | |
3128 break; | |
3129 | |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3130 case vmIntrinsics::_Reference_get: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3131 do_Reference_get(x); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3132 break; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3133 |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3134 case vmIntrinsics::_updateCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3135 case vmIntrinsics::_updateBytesCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3136 case vmIntrinsics::_updateByteBufferCRC32: |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3137 do_update_CRC32(x); |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3138 break; |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3139 |
0 | 3140 default: ShouldNotReachHere(); break; |
3141 } | |
3142 } | |
3143 | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3144 void LIRGenerator::profile_arguments(ProfileCall* x) { |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3145 if (compilation()->profile_arguments()) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3146 int bci = x->bci_of_invoke(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3147 ciMethodData* md = x->method()->method_data_or_null(); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3148 ciProfileData* data = md->bci_to_data(bci); |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3149 if ((data->is_CallTypeData() && data->as_CallTypeData()->has_arguments()) || |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3150 (data->is_VirtualCallTypeData() && data->as_VirtualCallTypeData()->has_arguments())) { |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3151 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
|
3152 int base_offset = md->byte_offset_of_slot(data, extra); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3153 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3154 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
|
3155 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3156 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3157 int start = 0; |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3158 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
|
3159 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
|
3160 // 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
|
3161 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
|
3162 start = 1; |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3163 } |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3164 ciSignature* callee_signature = x->callee()->signature(); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3165 // method handle call to virtual method |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3166 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
|
3167 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
|
3168 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3169 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3170 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3171 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
|
3172 ciSignatureStream signature_at_call_stream(signature_at_call); |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3173 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3174 // 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
|
3175 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
|
3176 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
|
3177 ciKlass* exact = profile_type(md, base_offset, off, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3178 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
|
3179 !x->arg_needs_null_check(i+start), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3180 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
|
3181 if (exact != NULL) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3182 md->set_argument_type(bci, i, exact); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3183 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3184 } |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3185 } else { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3186 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3187 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
|
3188 int n = x->nb_profiled_args(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3189 assert(MethodData::profile_parameters() && x->inlined() && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3190 ((code == Bytecodes::_invokedynamic && n <= 1) || (code == Bytecodes::_invokehandle && n <= 2)), |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3191 "only at JSR292 bytecodes"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3192 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3193 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3194 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3195 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3196 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3197 // profile parameters on entry to an inlined method |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3198 void LIRGenerator::profile_parameters_at_call(ProfileCall* x) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3199 if (compilation()->profile_parameters() && x->inlined()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3200 ciMethodData* md = x->callee()->method_data_or_null(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3201 if (md != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3202 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3203 if (parameters_type_data != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3204 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3205 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3206 bool has_receiver = !x->callee()->is_static(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3207 ciSignature* sig = x->callee()->signature(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3208 ciSignatureStream sig_stream(sig, has_receiver ? x->callee()->holder() : NULL); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3209 int i = 0; // to iterate on the Instructions |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3210 Value arg = x->recv(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3211 bool not_null = false; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3212 int bci = x->bci_of_invoke(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3213 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3214 // 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
|
3215 // 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
|
3216 // virtual method: the receiver is in the args list |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3217 if (arg == NULL || !Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3218 i = 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3219 arg = x->profiled_arg_at(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3220 not_null = !x->arg_needs_null_check(0); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3221 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3222 int k = 0; // to iterate on the profile data |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3223 for (;;) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3224 intptr_t profiled_k = parameters->type(k); |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3225 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
|
3226 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
|
3227 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
|
3228 // 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
|
3229 if (exact != NULL) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3230 md->set_parameter_type(k, exact); |
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 k++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3233 if (k >= parameters_type_data->number_of_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3234 #ifdef ASSERT |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3235 int extra = 0; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3236 if (MethodData::profile_arguments() && TypeProfileParmsLimit != -1 && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3237 x->nb_profiled_args() >= TypeProfileParmsLimit && |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3238 x->recv() != NULL && Bytecodes::has_receiver(bc)) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3239 extra += 1; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3240 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3241 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
|
3242 #endif |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3243 break; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3244 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3245 arg = x->profiled_arg_at(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3246 not_null = !x->arg_needs_null_check(i); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3247 i++; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3248 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3249 } |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3250 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3251 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3252 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3253 |
0 | 3254 void LIRGenerator::do_ProfileCall(ProfileCall* x) { |
3255 // Need recv in a temporary register so it interferes with the other temporaries | |
3256 LIR_Opr recv = LIR_OprFact::illegalOpr; | |
3257 LIR_Opr mdo = new_register(T_OBJECT); | |
1783 | 3258 // tmp is used to hold the counters on SPARC |
3259 LIR_Opr tmp = new_pointer_register(); | |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3260 |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3261 if (x->nb_profiled_args() > 0) { |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3262 profile_arguments(x); |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3263 } |
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3264 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3265 // profile parameters on inlined method entry including receiver |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3266 if (x->recv() != NULL || x->nb_profiled_args() > 0) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3267 profile_parameters_at_call(x); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3268 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3269 |
0 | 3270 if (x->recv() != NULL) { |
3271 LIRItem value(x->recv(), this); | |
3272 value.load_item(); | |
3273 recv = new_register(T_OBJECT); | |
3274 __ move(value.result(), recv); | |
3275 } | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
3276 __ profile_call(x->method(), x->bci_of_invoke(), x->callee(), mdo, recv, tmp, x->known_holder()); |
0 | 3277 } |
3278 | |
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3279 void LIRGenerator::do_ProfileReturnType(ProfileReturnType* x) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3280 int bci = x->bci_of_invoke(); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3281 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
|
3282 ciProfileData* data = md->bci_to_data(bci); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3283 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
|
3284 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
|
3285 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3286 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3287 bool ignored_will_link; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3288 ciSignature* signature_at_call = NULL; |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3289 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
|
3290 |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3291 ciKlass* exact = profile_type(md, 0, md->byte_offset_of_slot(data, ret->type_offset()), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3292 ret->type(), x->ret(), mdp, |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3293 !x->needs_null_check(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3294 signature_at_call->return_type()->as_klass(), |
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3295 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
|
3296 if (exact != NULL) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3297 md->set_return_type(bci, exact); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3298 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3299 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3300 |
1783 | 3301 void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) { |
3302 // We can safely ignore accessors here, since c2 will inline them anyway, | |
3303 // accessors are also always mature. | |
3304 if (!x->inlinee()->is_accessor()) { | |
3305 CodeEmitInfo* info = state_for(x, x->state(), true); | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3306 // Notify the runtime very infrequently only to take care of counter overflows |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3307 increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true); |
1783 | 3308 } |
3309 } | |
3310 | |
3311 void LIRGenerator::increment_event_counter(CodeEmitInfo* info, int bci, bool backedge) { | |
3312 int freq_log; | |
3313 int level = compilation()->env()->comp_level(); | |
3314 if (level == CompLevel_limited_profile) { | |
3315 freq_log = (backedge ? Tier2BackedgeNotifyFreqLog : Tier2InvokeNotifyFreqLog); | |
3316 } else if (level == CompLevel_full_profile) { | |
3317 freq_log = (backedge ? Tier3BackedgeNotifyFreqLog : Tier3InvokeNotifyFreqLog); | |
3318 } else { | |
3319 ShouldNotReachHere(); | |
3320 } | |
3321 // Increment the appropriate invocation/backedge counter and notify the runtime. | |
3322 increment_event_counter_impl(info, info->scope()->method(), (1 << freq_log) - 1, bci, backedge, true); | |
0 | 3323 } |
3324 | |
1783 | 3325 void LIRGenerator::increment_event_counter_impl(CodeEmitInfo* info, |
3326 ciMethod *method, int frequency, | |
3327 int bci, bool backedge, bool notify) { | |
3328 assert(frequency == 0 || is_power_of_2(frequency + 1), "Frequency must be x^2 - 1 or 0"); | |
3329 int level = _compilation->env()->comp_level(); | |
3330 assert(level > CompLevel_simple, "Shouldn't be here"); | |
3331 | |
3332 int offset = -1; | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3333 LIR_Opr counter_holder; |
1783 | 3334 if (level == CompLevel_limited_profile) { |
12868
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3335 MethodCounters* counters_adr = method->ensure_method_counters(); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3336 if (counters_adr == NULL) { |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3337 bailout("method counters allocation failed"); |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3338 return; |
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3339 } |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3340 counter_holder = new_pointer_register(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3341 __ 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
|
3342 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
|
3343 MethodCounters::invocation_counter_offset()); |
1783 | 3344 } 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
|
3345 counter_holder = new_register(T_METADATA); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3346 offset = in_bytes(backedge ? MethodData::backedge_counter_offset() : |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3347 MethodData::invocation_counter_offset()); |
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3348 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
|
3349 assert(md != NULL, "Sanity"); |
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
3350 __ metadata2reg(md->constant_encoding(), counter_holder); |
1783 | 3351 } else { |
3352 ShouldNotReachHere(); | |
3353 } | |
3354 LIR_Address* counter = new LIR_Address(counter_holder, offset, T_INT); | |
3355 LIR_Opr result = new_register(T_INT); | |
3356 __ load(counter, result); | |
3357 __ add(result, LIR_OprFact::intConst(InvocationCounter::count_increment), result); | |
3358 __ store(result, counter); | |
3359 if (notify) { | |
3360 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
|
3361 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
|
3362 __ metadata2reg(method->constant_encoding(), meth); |
1783 | 3363 __ logical_and(result, mask, result); |
3364 __ cmp(lir_cond_equal, result, LIR_OprFact::intConst(0)); | |
3365 // The bci for info can point to cmp for if's we want the if bci | |
3366 CodeStub* overflow = new CounterOverflowStub(info, bci, meth); | |
3367 __ branch(lir_cond_equal, T_INT, overflow); | |
3368 __ branch_destination(overflow->continuation()); | |
3369 } | |
3370 } | |
0 | 3371 |
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3372 void LIRGenerator::do_RuntimeCall(RuntimeCall* x) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3373 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
|
3374 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
|
3375 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3376 if (x->pass_thread()) { |
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
3377 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
|
3378 args->append(getThreadPointer()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3379 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3380 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3381 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
|
3382 Value a = x->argument_at(i); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3383 LIRItem* item = new LIRItem(a, this); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3384 item->load_item(); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3385 args->append(item->result()); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3386 signature->append(as_BasicType(a->type())); |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3387 } |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3388 |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3389 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
|
3390 if (x->type() == voidType) { |
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3391 set_no_result(x); |
403dc4c1d7f5
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|
3392 } else { |
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diff
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3393 __ move(result, rlock_result(x)); |
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changeset
|
3394 } |
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|
3395 } |
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|
3396 |
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8011648: C1: optimized build is broken after 7153771
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3397 #ifdef ASSERT |
8860 | 3398 void LIRGenerator::do_Assert(Assert *x) { |
3399 ValueTag tag = x->x()->type()->tag(); | |
3400 If::Condition cond = x->cond(); | |
3401 | |
3402 LIRItem xitem(x->x(), this); | |
3403 LIRItem yitem(x->y(), this); | |
3404 LIRItem* xin = &xitem; | |
3405 LIRItem* yin = &yitem; | |
3406 | |
3407 assert(tag == intTag, "Only integer assertions are valid!"); | |
3408 | |
3409 xin->load_item(); | |
3410 yin->dont_load_item(); | |
3411 | |
3412 set_no_result(x); | |
3413 | |
3414 LIR_Opr left = xin->result(); | |
3415 LIR_Opr right = yin->result(); | |
3416 | |
3417 __ lir_assert(lir_cond(x->cond()), left, right, x->message(), true); | |
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|
3418 } |
8860 | 3419 #endif |
3420 | |
3421 void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) { | |
3422 | |
3423 | |
3424 Instruction *a = x->x(); | |
3425 Instruction *b = x->y(); | |
3426 if (!a || StressRangeCheckElimination) { | |
3427 assert(!b || StressRangeCheckElimination, "B must also be null"); | |
3428 | |
3429 CodeEmitInfo *info = state_for(x, x->state()); | |
3430 CodeStub* stub = new PredicateFailedStub(info); | |
3431 | |
3432 __ jump(stub); | |
3433 } else if (a->type()->as_IntConstant() && b->type()->as_IntConstant()) { | |
3434 int a_int = a->type()->as_IntConstant()->value(); | |
3435 int b_int = b->type()->as_IntConstant()->value(); | |
3436 | |
3437 bool ok = false; | |
3438 | |
3439 switch(x->cond()) { | |
3440 case Instruction::eql: ok = (a_int == b_int); break; | |
3441 case Instruction::neq: ok = (a_int != b_int); break; | |
3442 case Instruction::lss: ok = (a_int < b_int); break; | |
3443 case Instruction::leq: ok = (a_int <= b_int); break; | |
3444 case Instruction::gtr: ok = (a_int > b_int); break; | |
3445 case Instruction::geq: ok = (a_int >= b_int); break; | |
3446 case Instruction::aeq: ok = ((unsigned int)a_int >= (unsigned int)b_int); break; | |
3447 case Instruction::beq: ok = ((unsigned int)a_int <= (unsigned int)b_int); break; | |
3448 default: ShouldNotReachHere(); | |
3449 } | |
3450 | |
3451 if (ok) { | |
3452 | |
3453 CodeEmitInfo *info = state_for(x, x->state()); | |
3454 CodeStub* stub = new PredicateFailedStub(info); | |
3455 | |
3456 __ jump(stub); | |
3457 } | |
3458 } else { | |
3459 | |
3460 ValueTag tag = x->x()->type()->tag(); | |
3461 If::Condition cond = x->cond(); | |
3462 LIRItem xitem(x->x(), this); | |
3463 LIRItem yitem(x->y(), this); | |
3464 LIRItem* xin = &xitem; | |
3465 LIRItem* yin = &yitem; | |
3466 | |
3467 assert(tag == intTag, "Only integer deoptimizations are valid!"); | |
3468 | |
3469 xin->load_item(); | |
3470 yin->dont_load_item(); | |
3471 set_no_result(x); | |
3472 | |
3473 LIR_Opr left = xin->result(); | |
3474 LIR_Opr right = yin->result(); | |
3475 | |
3476 CodeEmitInfo *info = state_for(x, x->state()); | |
3477 CodeStub* stub = new PredicateFailedStub(info); | |
3478 | |
3479 __ cmp(lir_cond(cond), left, right); | |
3480 __ branch(lir_cond(cond), right->type(), stub); | |
3481 } | |
3482 } | |
3483 | |
3484 | |
0 | 3485 LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) { |
3486 LIRItemList args(1); | |
3487 LIRItem value(arg1, this); | |
3488 args.append(&value); | |
3489 BasicTypeList signature; | |
3490 signature.append(as_BasicType(arg1->type())); | |
3491 | |
3492 return call_runtime(&signature, &args, entry, result_type, info); | |
3493 } | |
3494 | |
3495 | |
3496 LIR_Opr LIRGenerator::call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3497 LIRItemList args(2); | |
3498 LIRItem value1(arg1, this); | |
3499 LIRItem value2(arg2, this); | |
3500 args.append(&value1); | |
3501 args.append(&value2); | |
3502 BasicTypeList signature; | |
3503 signature.append(as_BasicType(arg1->type())); | |
3504 signature.append(as_BasicType(arg2->type())); | |
3505 | |
3506 return call_runtime(&signature, &args, entry, result_type, info); | |
3507 } | |
3508 | |
3509 | |
3510 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIR_OprList* args, | |
3511 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3512 // get a result register | |
3513 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3514 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3515 if (result_type->tag() != voidTag) { | |
3516 result = new_register(result_type); | |
3517 phys_reg = result_register_for(result_type); | |
3518 } | |
3519 | |
3520 // move the arguments into the correct location | |
3521 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3522 assert(cc->length() == args->length(), "argument mismatch"); | |
3523 for (int i = 0; i < args->length(); i++) { | |
3524 LIR_Opr arg = args->at(i); | |
3525 LIR_Opr loc = cc->at(i); | |
3526 if (loc->is_register()) { | |
3527 __ move(arg, loc); | |
3528 } else { | |
3529 LIR_Address* addr = loc->as_address_ptr(); | |
3530 // if (!can_store_as_constant(arg)) { | |
3531 // LIR_Opr tmp = new_register(arg->type()); | |
3532 // __ move(arg, tmp); | |
3533 // arg = tmp; | |
3534 // } | |
3535 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3536 __ unaligned_move(arg, addr); | |
3537 } else { | |
3538 __ move(arg, addr); | |
3539 } | |
3540 } | |
3541 } | |
3542 | |
3543 if (info) { | |
3544 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3545 } else { | |
3546 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3547 } | |
3548 if (result->is_valid()) { | |
3549 __ move(phys_reg, result); | |
3550 } | |
3551 return result; | |
3552 } | |
3553 | |
3554 | |
3555 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIRItemList* args, | |
3556 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
3557 // get a result register | |
3558 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
3559 LIR_Opr result = LIR_OprFact::illegalOpr; | |
3560 if (result_type->tag() != voidTag) { | |
3561 result = new_register(result_type); | |
3562 phys_reg = result_register_for(result_type); | |
3563 } | |
3564 | |
3565 // move the arguments into the correct location | |
3566 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
3567 | |
3568 assert(cc->length() == args->length(), "argument mismatch"); | |
3569 for (int i = 0; i < args->length(); i++) { | |
3570 LIRItem* arg = args->at(i); | |
3571 LIR_Opr loc = cc->at(i); | |
3572 if (loc->is_register()) { | |
3573 arg->load_item_force(loc); | |
3574 } else { | |
3575 LIR_Address* addr = loc->as_address_ptr(); | |
3576 arg->load_for_store(addr->type()); | |
3577 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
3578 __ unaligned_move(arg->result(), addr); | |
3579 } else { | |
3580 __ move(arg->result(), addr); | |
3581 } | |
3582 } | |
3583 } | |
3584 | |
3585 if (info) { | |
3586 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
3587 } else { | |
3588 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
3589 } | |
3590 if (result->is_valid()) { | |
3591 __ move(phys_reg, result); | |
3592 } | |
3593 return result; | |
3594 } | |
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|
3595 |
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|
3596 void LIRGenerator::do_MemBar(MemBar* x) { |
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diff
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|
3597 if (os::is_MP()) { |
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diff
changeset
|
3598 LIR_Code code = x->code(); |
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diff
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|
3599 switch(code) { |
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diff
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|
3600 case lir_membar_acquire : __ membar_acquire(); break; |
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diff
changeset
|
3601 case lir_membar_release : __ membar_release(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3602 case lir_membar : __ membar(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3603 case lir_membar_loadload : __ membar_loadload(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3604 case lir_membar_storestore: __ membar_storestore(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3605 case lir_membar_loadstore : __ membar_loadstore(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3606 case lir_membar_storeload : __ membar_storeload(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3607 default : ShouldNotReachHere(); break; |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3608 } |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3609 } |
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3610 } |