Mercurial > hg > graal-jvmci-8
annotate src/share/vm/c1/c1_LIRGenerator.cpp @ 23614:32b682649973 jdk8u75-b04
8132051: Better byte behavior
Reviewed-by: coleenp, roland
| author | kevinw |
|---|---|
| date | Fri, 15 Jan 2016 22:33:15 +0000 |
| parents | 8fd636dd1c91 |
| children | b5f3a471e646 d109bda16490 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "c1/c1_Defs.hpp" |
| 1972 | 27 #include "c1/c1_Compilation.hpp" |
| 28 #include "c1/c1_FrameMap.hpp" | |
| 29 #include "c1/c1_Instruction.hpp" | |
| 30 #include "c1/c1_LIRAssembler.hpp" | |
| 31 #include "c1/c1_LIRGenerator.hpp" | |
| 32 #include "c1/c1_ValueStack.hpp" | |
| 33 #include "ci/ciArrayKlass.hpp" | |
| 34 #include "ci/ciInstance.hpp" | |
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35 #include "ci/ciObjArray.hpp" |
| 1972 | 36 #include "runtime/sharedRuntime.hpp" |
| 37 #include "runtime/stubRoutines.hpp" | |
| 38 #include "utilities/bitMap.inline.hpp" | |
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39 #include "utilities/macros.hpp" |
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40 #if INCLUDE_ALL_GCS |
| 1972 | 41 #include "gc_implementation/g1/heapRegion.hpp" |
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42 #endif // INCLUDE_ALL_GCS |
| 0 | 43 |
| 44 #ifdef ASSERT | |
| 45 #define __ gen()->lir(__FILE__, __LINE__)-> | |
| 46 #else | |
| 47 #define __ gen()->lir()-> | |
| 48 #endif | |
| 49 | |
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50 #ifndef PATCHED_ADDR |
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51 #define PATCHED_ADDR (max_jint) |
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52 #endif |
| 0 | 53 |
| 54 void PhiResolverState::reset(int max_vregs) { | |
| 55 // Initialize array sizes | |
| 56 _virtual_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 57 _virtual_operands.trunc_to(0); | |
| 58 _other_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 59 _other_operands.trunc_to(0); | |
| 60 _vreg_table.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 61 _vreg_table.trunc_to(0); | |
| 62 } | |
| 63 | |
| 64 | |
| 65 | |
| 66 //-------------------------------------------------------------- | |
| 67 // PhiResolver | |
| 68 | |
| 69 // Resolves cycles: | |
| 70 // | |
| 71 // r1 := r2 becomes temp := r1 | |
| 72 // r2 := r1 r1 := r2 | |
| 73 // r2 := temp | |
| 74 // and orders moves: | |
| 75 // | |
| 76 // r2 := r3 becomes r1 := r2 | |
| 77 // r1 := r2 r2 := r3 | |
| 78 | |
| 79 PhiResolver::PhiResolver(LIRGenerator* gen, int max_vregs) | |
| 80 : _gen(gen) | |
| 81 , _state(gen->resolver_state()) | |
| 82 , _temp(LIR_OprFact::illegalOpr) | |
| 83 { | |
| 84 // reinitialize the shared state arrays | |
| 85 _state.reset(max_vregs); | |
| 86 } | |
| 87 | |
| 88 | |
| 89 void PhiResolver::emit_move(LIR_Opr src, LIR_Opr dest) { | |
| 90 assert(src->is_valid(), ""); | |
| 91 assert(dest->is_valid(), ""); | |
| 92 __ move(src, dest); | |
| 93 } | |
| 94 | |
| 95 | |
| 96 void PhiResolver::move_temp_to(LIR_Opr dest) { | |
| 97 assert(_temp->is_valid(), ""); | |
| 98 emit_move(_temp, dest); | |
| 99 NOT_PRODUCT(_temp = LIR_OprFact::illegalOpr); | |
| 100 } | |
| 101 | |
| 102 | |
| 103 void PhiResolver::move_to_temp(LIR_Opr src) { | |
| 104 assert(_temp->is_illegal(), ""); | |
| 105 _temp = _gen->new_register(src->type()); | |
| 106 emit_move(src, _temp); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 // Traverse assignment graph in depth first order and generate moves in post order | |
| 111 // ie. two assignments: b := c, a := b start with node c: | |
| 112 // Call graph: move(NULL, c) -> move(c, b) -> move(b, a) | |
| 113 // Generates moves in this order: move b to a and move c to b | |
| 114 // ie. cycle a := b, b := a start with node a | |
| 115 // Call graph: move(NULL, a) -> move(a, b) -> move(b, a) | |
| 116 // Generates moves in this order: move b to temp, move a to b, move temp to a | |
| 117 void PhiResolver::move(ResolveNode* src, ResolveNode* dest) { | |
| 118 if (!dest->visited()) { | |
| 119 dest->set_visited(); | |
| 120 for (int i = dest->no_of_destinations()-1; i >= 0; i --) { | |
| 121 move(dest, dest->destination_at(i)); | |
| 122 } | |
| 123 } else if (!dest->start_node()) { | |
| 124 // cylce in graph detected | |
| 125 assert(_loop == NULL, "only one loop valid!"); | |
| 126 _loop = dest; | |
| 127 move_to_temp(src->operand()); | |
| 128 return; | |
| 129 } // else dest is a start node | |
| 130 | |
| 131 if (!dest->assigned()) { | |
| 132 if (_loop == dest) { | |
| 133 move_temp_to(dest->operand()); | |
| 134 dest->set_assigned(); | |
| 135 } else if (src != NULL) { | |
| 136 emit_move(src->operand(), dest->operand()); | |
| 137 dest->set_assigned(); | |
| 138 } | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 | |
| 143 PhiResolver::~PhiResolver() { | |
| 144 int i; | |
| 145 // resolve any cycles in moves from and to virtual registers | |
| 146 for (i = virtual_operands().length() - 1; i >= 0; i --) { | |
| 147 ResolveNode* node = virtual_operands()[i]; | |
| 148 if (!node->visited()) { | |
| 149 _loop = NULL; | |
| 150 move(NULL, node); | |
| 151 node->set_start_node(); | |
| 152 assert(_temp->is_illegal(), "move_temp_to() call missing"); | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 // generate move for move from non virtual register to abitrary destination | |
| 157 for (i = other_operands().length() - 1; i >= 0; i --) { | |
| 158 ResolveNode* node = other_operands()[i]; | |
| 159 for (int j = node->no_of_destinations() - 1; j >= 0; j --) { | |
| 160 emit_move(node->operand(), node->destination_at(j)->operand()); | |
| 161 } | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 | |
| 166 ResolveNode* PhiResolver::create_node(LIR_Opr opr, bool source) { | |
| 167 ResolveNode* node; | |
| 168 if (opr->is_virtual()) { | |
| 169 int vreg_num = opr->vreg_number(); | |
| 170 node = vreg_table().at_grow(vreg_num, NULL); | |
| 171 assert(node == NULL || node->operand() == opr, ""); | |
| 172 if (node == NULL) { | |
| 173 node = new ResolveNode(opr); | |
| 174 vreg_table()[vreg_num] = node; | |
| 175 } | |
| 176 // Make sure that all virtual operands show up in the list when | |
| 177 // they are used as the source of a move. | |
| 178 if (source && !virtual_operands().contains(node)) { | |
| 179 virtual_operands().append(node); | |
| 180 } | |
| 181 } else { | |
| 182 assert(source, ""); | |
| 183 node = new ResolveNode(opr); | |
| 184 other_operands().append(node); | |
| 185 } | |
| 186 return node; | |
| 187 } | |
| 188 | |
| 189 | |
| 190 void PhiResolver::move(LIR_Opr src, LIR_Opr dest) { | |
| 191 assert(dest->is_virtual(), ""); | |
| 192 // tty->print("move "); src->print(); tty->print(" to "); dest->print(); tty->cr(); | |
| 193 assert(src->is_valid(), ""); | |
| 194 assert(dest->is_valid(), ""); | |
| 195 ResolveNode* source = source_node(src); | |
| 196 source->append(destination_node(dest)); | |
| 197 } | |
| 198 | |
| 199 | |
| 200 //-------------------------------------------------------------- | |
| 201 // LIRItem | |
| 202 | |
| 203 void LIRItem::set_result(LIR_Opr opr) { | |
| 204 assert(value()->operand()->is_illegal() || value()->operand()->is_constant(), "operand should never change"); | |
| 205 value()->set_operand(opr); | |
| 206 | |
| 207 if (opr->is_virtual()) { | |
| 208 _gen->_instruction_for_operand.at_put_grow(opr->vreg_number(), value(), NULL); | |
| 209 } | |
| 210 | |
| 211 _result = opr; | |
| 212 } | |
| 213 | |
| 214 void LIRItem::load_item() { | |
| 215 if (result()->is_illegal()) { | |
| 216 // update the items result | |
| 217 _result = value()->operand(); | |
| 218 } | |
| 219 if (!result()->is_register()) { | |
| 220 LIR_Opr reg = _gen->new_register(value()->type()); | |
| 221 __ move(result(), reg); | |
| 222 if (result()->is_constant()) { | |
| 223 _result = reg; | |
| 224 } else { | |
| 225 set_result(reg); | |
| 226 } | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 | |
| 231 void LIRItem::load_for_store(BasicType type) { | |
| 232 if (_gen->can_store_as_constant(value(), type)) { | |
| 233 _result = value()->operand(); | |
| 234 if (!_result->is_constant()) { | |
| 235 _result = LIR_OprFact::value_type(value()->type()); | |
| 236 } | |
| 237 } else if (type == T_BYTE || type == T_BOOLEAN) { | |
| 238 load_byte_item(); | |
| 239 } else { | |
| 240 load_item(); | |
| 241 } | |
| 242 } | |
| 243 | |
| 244 void LIRItem::load_item_force(LIR_Opr reg) { | |
| 245 LIR_Opr r = result(); | |
| 246 if (r != reg) { | |
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247 #if !defined(ARM) && !defined(E500V2) |
| 0 | 248 if (r->type() != reg->type()) { |
| 249 // moves between different types need an intervening spill slot | |
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250 r = _gen->force_to_spill(r, reg->type()); |
| 0 | 251 } |
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252 #endif |
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253 __ move(r, reg); |
| 0 | 254 _result = reg; |
| 255 } | |
| 256 } | |
| 257 | |
| 258 ciObject* LIRItem::get_jobject_constant() const { | |
| 259 ObjectType* oc = type()->as_ObjectType(); | |
| 260 if (oc) { | |
| 261 return oc->constant_value(); | |
| 262 } | |
| 263 return NULL; | |
| 264 } | |
| 265 | |
| 266 | |
| 267 jint LIRItem::get_jint_constant() const { | |
| 268 assert(is_constant() && value() != NULL, ""); | |
| 269 assert(type()->as_IntConstant() != NULL, "type check"); | |
| 270 return type()->as_IntConstant()->value(); | |
| 271 } | |
| 272 | |
| 273 | |
| 274 jint LIRItem::get_address_constant() const { | |
| 275 assert(is_constant() && value() != NULL, ""); | |
| 276 assert(type()->as_AddressConstant() != NULL, "type check"); | |
| 277 return type()->as_AddressConstant()->value(); | |
| 278 } | |
| 279 | |
| 280 | |
| 281 jfloat LIRItem::get_jfloat_constant() const { | |
| 282 assert(is_constant() && value() != NULL, ""); | |
| 283 assert(type()->as_FloatConstant() != NULL, "type check"); | |
| 284 return type()->as_FloatConstant()->value(); | |
| 285 } | |
| 286 | |
| 287 | |
| 288 jdouble LIRItem::get_jdouble_constant() const { | |
| 289 assert(is_constant() && value() != NULL, ""); | |
| 290 assert(type()->as_DoubleConstant() != NULL, "type check"); | |
| 291 return type()->as_DoubleConstant()->value(); | |
| 292 } | |
| 293 | |
| 294 | |
| 295 jlong LIRItem::get_jlong_constant() const { | |
| 296 assert(is_constant() && value() != NULL, ""); | |
| 297 assert(type()->as_LongConstant() != NULL, "type check"); | |
| 298 return type()->as_LongConstant()->value(); | |
| 299 } | |
| 300 | |
| 301 | |
| 302 | |
| 303 //-------------------------------------------------------------- | |
| 304 | |
| 305 | |
| 306 void LIRGenerator::init() { | |
| 342 | 307 _bs = Universe::heap()->barrier_set(); |
| 0 | 308 } |
| 309 | |
| 310 | |
| 311 void LIRGenerator::block_do_prolog(BlockBegin* block) { | |
| 312 #ifndef PRODUCT | |
| 313 if (PrintIRWithLIR) { | |
| 314 block->print(); | |
| 315 } | |
| 316 #endif | |
| 317 | |
| 318 // set up the list of LIR instructions | |
| 319 assert(block->lir() == NULL, "LIR list already computed for this block"); | |
| 320 _lir = new LIR_List(compilation(), block); | |
| 321 block->set_lir(_lir); | |
| 322 | |
| 323 __ branch_destination(block->label()); | |
| 324 | |
| 325 if (LIRTraceExecution && | |
| 1584 | 326 Compilation::current()->hir()->start()->block_id() != block->block_id() && |
| 0 | 327 !block->is_set(BlockBegin::exception_entry_flag)) { |
| 328 assert(block->lir()->instructions_list()->length() == 1, "should come right after br_dst"); | |
| 329 trace_block_entry(block); | |
| 330 } | |
| 331 } | |
| 332 | |
| 333 | |
| 334 void LIRGenerator::block_do_epilog(BlockBegin* block) { | |
| 335 #ifndef PRODUCT | |
| 336 if (PrintIRWithLIR) { | |
| 337 tty->cr(); | |
| 338 } | |
| 339 #endif | |
| 340 | |
| 341 // LIR_Opr for unpinned constants shouldn't be referenced by other | |
| 342 // blocks so clear them out after processing the block. | |
| 343 for (int i = 0; i < _unpinned_constants.length(); i++) { | |
| 344 _unpinned_constants.at(i)->clear_operand(); | |
| 345 } | |
| 346 _unpinned_constants.trunc_to(0); | |
| 347 | |
| 348 // clear our any registers for other local constants | |
| 349 _constants.trunc_to(0); | |
| 350 _reg_for_constants.trunc_to(0); | |
| 351 } | |
| 352 | |
| 353 | |
| 354 void LIRGenerator::block_do(BlockBegin* block) { | |
| 355 CHECK_BAILOUT(); | |
| 356 | |
| 357 block_do_prolog(block); | |
| 358 set_block(block); | |
| 359 | |
| 360 for (Instruction* instr = block; instr != NULL; instr = instr->next()) { | |
| 361 if (instr->is_pinned()) do_root(instr); | |
| 362 } | |
| 363 | |
| 364 set_block(NULL); | |
| 365 block_do_epilog(block); | |
| 366 } | |
| 367 | |
| 368 | |
| 369 //-------------------------LIRGenerator----------------------------- | |
| 370 | |
| 371 // This is where the tree-walk starts; instr must be root; | |
| 372 void LIRGenerator::do_root(Value instr) { | |
| 373 CHECK_BAILOUT(); | |
| 374 | |
| 375 InstructionMark im(compilation(), instr); | |
| 376 | |
| 377 assert(instr->is_pinned(), "use only with roots"); | |
| 378 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
| 379 | |
| 380 instr->visit(this); | |
| 381 | |
| 382 assert(!instr->has_uses() || instr->operand()->is_valid() || | |
| 383 instr->as_Constant() != NULL || bailed_out(), "invalid item set"); | |
| 384 } | |
| 385 | |
| 386 | |
| 387 // This is called for each node in tree; the walk stops if a root is reached | |
| 388 void LIRGenerator::walk(Value instr) { | |
| 389 InstructionMark im(compilation(), instr); | |
| 390 //stop walk when encounter a root | |
| 391 if (instr->is_pinned() && instr->as_Phi() == NULL || instr->operand()->is_valid()) { | |
| 392 assert(instr->operand() != LIR_OprFact::illegalOpr || instr->as_Constant() != NULL, "this root has not yet been visited"); | |
| 393 } else { | |
| 394 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
| 395 instr->visit(this); | |
| 396 // assert(instr->use_count() > 0 || instr->as_Phi() != NULL, "leaf instruction must have a use"); | |
| 397 } | |
| 398 } | |
| 399 | |
| 400 | |
| 401 CodeEmitInfo* LIRGenerator::state_for(Instruction* x, ValueStack* state, bool ignore_xhandler) { | |
| 1819 | 402 assert(state != NULL, "state must be defined"); |
| 403 | |
| 8860 | 404 #ifndef PRODUCT |
| 405 state->verify(); | |
| 406 #endif | |
| 407 | |
| 1819 | 408 ValueStack* s = state; |
| 409 for_each_state(s) { | |
| 410 if (s->kind() == ValueStack::EmptyExceptionState) { | |
| 411 assert(s->stack_size() == 0 && s->locals_size() == 0 && (s->locks_size() == 0 || s->locks_size() == 1), "state must be empty"); | |
| 412 continue; | |
| 0 | 413 } |
| 1819 | 414 |
| 415 int index; | |
| 416 Value value; | |
| 417 for_each_stack_value(s, index, value) { | |
| 418 assert(value->subst() == value, "missed substitution"); | |
| 419 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
| 420 walk(value); | |
| 421 assert(value->operand()->is_valid(), "must be evaluated now"); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 int bci = s->bci(); | |
| 0 | 426 IRScope* scope = s->scope(); |
| 427 ciMethod* method = scope->method(); | |
| 428 | |
| 429 MethodLivenessResult liveness = method->liveness_at_bci(bci); | |
| 430 if (bci == SynchronizationEntryBCI) { | |
| 431 if (x->as_ExceptionObject() || x->as_Throw()) { | |
| 432 // all locals are dead on exit from the synthetic unlocker | |
| 433 liveness.clear(); | |
| 434 } else { | |
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435 assert(x->as_MonitorEnter() || x->as_ProfileInvoke(), "only other cases are MonitorEnter and ProfileInvoke"); |
| 0 | 436 } |
| 437 } | |
| 438 if (!liveness.is_valid()) { | |
| 439 // Degenerate or breakpointed method. | |
| 440 bailout("Degenerate or breakpointed method"); | |
| 441 } else { | |
| 442 assert((int)liveness.size() == s->locals_size(), "error in use of liveness"); | |
| 443 for_each_local_value(s, index, value) { | |
| 444 assert(value->subst() == value, "missed substition"); | |
| 445 if (liveness.at(index) && !value->type()->is_illegal()) { | |
| 446 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
| 447 walk(value); | |
| 448 assert(value->operand()->is_valid(), "must be evaluated now"); | |
| 449 } | |
| 450 } else { | |
| 451 // NULL out this local so that linear scan can assume that all non-NULL values are live. | |
| 452 s->invalidate_local(index); | |
| 453 } | |
| 454 } | |
| 455 } | |
| 456 } | |
| 457 | |
| 8860 | 458 return new CodeEmitInfo(state, ignore_xhandler ? NULL : x->exception_handlers(), x->check_flag(Instruction::DeoptimizeOnException)); |
| 0 | 459 } |
| 460 | |
| 461 | |
| 462 CodeEmitInfo* LIRGenerator::state_for(Instruction* x) { | |
| 1819 | 463 return state_for(x, x->exception_state()); |
| 0 | 464 } |
| 465 | |
| 466 | |
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467 void LIRGenerator::klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve) { |
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468 /* C2 relies on constant pool entries being resolved (ciTypeFlow), so if TieredCompilation |
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469 * is active and the class hasn't yet been resolved we need to emit a patch that resolves |
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470 * the class. */ |
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471 if ((TieredCompilation && need_resolve) || !obj->is_loaded() || PatchALot) { |
| 0 | 472 assert(info != NULL, "info must be set if class is not loaded"); |
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473 __ klass2reg_patch(NULL, r, info); |
| 0 | 474 } else { |
| 475 // no patching needed | |
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476 __ metadata2reg(obj->constant_encoding(), r); |
| 0 | 477 } |
| 478 } | |
| 479 | |
| 480 | |
| 481 void LIRGenerator::array_range_check(LIR_Opr array, LIR_Opr index, | |
| 482 CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info) { | |
| 483 CodeStub* stub = new RangeCheckStub(range_check_info, index); | |
| 484 if (index->is_constant()) { | |
| 485 cmp_mem_int(lir_cond_belowEqual, array, arrayOopDesc::length_offset_in_bytes(), | |
| 486 index->as_jint(), null_check_info); | |
| 487 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
| 488 } else { | |
| 489 cmp_reg_mem(lir_cond_aboveEqual, index, array, | |
| 490 arrayOopDesc::length_offset_in_bytes(), T_INT, null_check_info); | |
| 491 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
| 492 } | |
| 493 } | |
| 494 | |
| 495 | |
| 496 void LIRGenerator::nio_range_check(LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) { | |
| 497 CodeStub* stub = new RangeCheckStub(info, index, true); | |
| 498 if (index->is_constant()) { | |
| 499 cmp_mem_int(lir_cond_belowEqual, buffer, java_nio_Buffer::limit_offset(), index->as_jint(), info); | |
| 500 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
| 501 } else { | |
| 502 cmp_reg_mem(lir_cond_aboveEqual, index, buffer, | |
| 503 java_nio_Buffer::limit_offset(), T_INT, info); | |
| 504 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
| 505 } | |
| 506 __ move(index, result); | |
| 507 } | |
| 508 | |
| 509 | |
| 510 | |
| 511 void LIRGenerator::arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp_op, CodeEmitInfo* info) { | |
| 512 LIR_Opr result_op = result; | |
| 513 LIR_Opr left_op = left; | |
| 514 LIR_Opr right_op = right; | |
| 515 | |
| 516 if (TwoOperandLIRForm && left_op != result_op) { | |
| 517 assert(right_op != result_op, "malformed"); | |
| 518 __ move(left_op, result_op); | |
| 519 left_op = result_op; | |
| 520 } | |
| 521 | |
| 522 switch(code) { | |
| 523 case Bytecodes::_dadd: | |
| 524 case Bytecodes::_fadd: | |
| 525 case Bytecodes::_ladd: | |
| 526 case Bytecodes::_iadd: __ add(left_op, right_op, result_op); break; | |
| 527 case Bytecodes::_fmul: | |
| 528 case Bytecodes::_lmul: __ mul(left_op, right_op, result_op); break; | |
| 529 | |
| 530 case Bytecodes::_dmul: | |
| 531 { | |
| 532 if (is_strictfp) { | |
| 533 __ mul_strictfp(left_op, right_op, result_op, tmp_op); break; | |
| 534 } else { | |
| 535 __ mul(left_op, right_op, result_op); break; | |
| 536 } | |
| 537 } | |
| 538 break; | |
| 539 | |
| 540 case Bytecodes::_imul: | |
| 541 { | |
| 542 bool did_strength_reduce = false; | |
| 543 | |
| 544 if (right->is_constant()) { | |
| 545 int c = right->as_jint(); | |
| 546 if (is_power_of_2(c)) { | |
| 547 // do not need tmp here | |
| 548 __ shift_left(left_op, exact_log2(c), result_op); | |
| 549 did_strength_reduce = true; | |
| 550 } else { | |
| 551 did_strength_reduce = strength_reduce_multiply(left_op, c, result_op, tmp_op); | |
| 552 } | |
| 553 } | |
| 554 // we couldn't strength reduce so just emit the multiply | |
| 555 if (!did_strength_reduce) { | |
| 556 __ mul(left_op, right_op, result_op); | |
| 557 } | |
| 558 } | |
| 559 break; | |
| 560 | |
| 561 case Bytecodes::_dsub: | |
| 562 case Bytecodes::_fsub: | |
| 563 case Bytecodes::_lsub: | |
| 564 case Bytecodes::_isub: __ sub(left_op, right_op, result_op); break; | |
| 565 | |
| 566 case Bytecodes::_fdiv: __ div (left_op, right_op, result_op); break; | |
| 567 // ldiv and lrem are implemented with a direct runtime call | |
| 568 | |
| 569 case Bytecodes::_ddiv: | |
| 570 { | |
| 571 if (is_strictfp) { | |
| 572 __ div_strictfp (left_op, right_op, result_op, tmp_op); break; | |
| 573 } else { | |
| 574 __ div (left_op, right_op, result_op); break; | |
| 575 } | |
| 576 } | |
| 577 break; | |
| 578 | |
| 579 case Bytecodes::_drem: | |
| 580 case Bytecodes::_frem: __ rem (left_op, right_op, result_op); break; | |
| 581 | |
| 582 default: ShouldNotReachHere(); | |
| 583 } | |
| 584 } | |
| 585 | |
| 586 | |
| 587 void LIRGenerator::arithmetic_op_int(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp) { | |
| 588 arithmetic_op(code, result, left, right, false, tmp); | |
| 589 } | |
| 590 | |
| 591 | |
| 592 void LIRGenerator::arithmetic_op_long(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) { | |
| 593 arithmetic_op(code, result, left, right, false, LIR_OprFact::illegalOpr, info); | |
| 594 } | |
| 595 | |
| 596 | |
| 597 void LIRGenerator::arithmetic_op_fpu(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp) { | |
| 598 arithmetic_op(code, result, left, right, is_strictfp, tmp); | |
| 599 } | |
| 600 | |
| 601 | |
| 602 void LIRGenerator::shift_op(Bytecodes::Code code, LIR_Opr result_op, LIR_Opr value, LIR_Opr count, LIR_Opr tmp) { | |
| 603 if (TwoOperandLIRForm && value != result_op) { | |
| 604 assert(count != result_op, "malformed"); | |
| 605 __ move(value, result_op); | |
| 606 value = result_op; | |
| 607 } | |
| 608 | |
| 609 assert(count->is_constant() || count->is_register(), "must be"); | |
| 610 switch(code) { | |
| 611 case Bytecodes::_ishl: | |
| 612 case Bytecodes::_lshl: __ shift_left(value, count, result_op, tmp); break; | |
| 613 case Bytecodes::_ishr: | |
| 614 case Bytecodes::_lshr: __ shift_right(value, count, result_op, tmp); break; | |
| 615 case Bytecodes::_iushr: | |
| 616 case Bytecodes::_lushr: __ unsigned_shift_right(value, count, result_op, tmp); break; | |
| 617 default: ShouldNotReachHere(); | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 | |
| 622 void LIRGenerator::logic_op (Bytecodes::Code code, LIR_Opr result_op, LIR_Opr left_op, LIR_Opr right_op) { | |
| 623 if (TwoOperandLIRForm && left_op != result_op) { | |
| 624 assert(right_op != result_op, "malformed"); | |
| 625 __ move(left_op, result_op); | |
| 626 left_op = result_op; | |
| 627 } | |
| 628 | |
| 629 switch(code) { | |
| 630 case Bytecodes::_iand: | |
| 631 case Bytecodes::_land: __ logical_and(left_op, right_op, result_op); break; | |
| 632 | |
| 633 case Bytecodes::_ior: | |
| 634 case Bytecodes::_lor: __ logical_or(left_op, right_op, result_op); break; | |
| 635 | |
| 636 case Bytecodes::_ixor: | |
| 637 case Bytecodes::_lxor: __ logical_xor(left_op, right_op, result_op); break; | |
| 638 | |
| 639 default: ShouldNotReachHere(); | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 | |
| 644 void LIRGenerator::monitor_enter(LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info) { | |
| 645 if (!GenerateSynchronizationCode) return; | |
| 646 // for slow path, use debug info for state after successful locking | |
| 647 CodeStub* slow_path = new MonitorEnterStub(object, lock, info); | |
| 648 __ load_stack_address_monitor(monitor_no, lock); | |
| 649 // for handling NullPointerException, use debug info representing just the lock stack before this monitorenter | |
| 650 __ lock_object(hdr, object, lock, scratch, slow_path, info_for_exception); | |
| 651 } | |
| 652 | |
| 653 | |
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654 void LIRGenerator::monitor_exit(LIR_Opr object, LIR_Opr lock, LIR_Opr new_hdr, LIR_Opr scratch, int monitor_no) { |
| 0 | 655 if (!GenerateSynchronizationCode) return; |
| 656 // setup registers | |
| 657 LIR_Opr hdr = lock; | |
| 658 lock = new_hdr; | |
| 659 CodeStub* slow_path = new MonitorExitStub(lock, UseFastLocking, monitor_no); | |
| 660 __ load_stack_address_monitor(monitor_no, lock); | |
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661 __ unlock_object(hdr, object, lock, scratch, slow_path); |
| 0 | 662 } |
| 663 | |
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664 #ifndef PRODUCT |
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665 void LIRGenerator::print_if_not_loaded(const NewInstance* new_instance) { |
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666 if (PrintNotLoaded && !new_instance->klass()->is_loaded()) { |
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667 tty->print_cr(" ###class not loaded at new bci %d", new_instance->printable_bci()); |
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668 } else if (PrintNotLoaded && (TieredCompilation && new_instance->is_unresolved())) { |
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669 tty->print_cr(" ###class not resolved at new bci %d", new_instance->printable_bci()); |
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670 } |
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671 } |
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672 #endif |
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673 |
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674 void LIRGenerator::new_instance(LIR_Opr dst, ciInstanceKlass* klass, bool is_unresolved, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info) { |
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675 klass2reg_with_patching(klass_reg, klass, info, is_unresolved); |
| 0 | 676 // If klass is not loaded we do not know if the klass has finalizers: |
| 677 if (UseFastNewInstance && klass->is_loaded() | |
| 678 && !Klass::layout_helper_needs_slow_path(klass->layout_helper())) { | |
| 679 | |
| 680 Runtime1::StubID stub_id = klass->is_initialized() ? Runtime1::fast_new_instance_id : Runtime1::fast_new_instance_init_check_id; | |
| 681 | |
| 682 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, stub_id); | |
| 683 | |
| 684 assert(klass->is_loaded(), "must be loaded"); | |
| 685 // allocate space for instance | |
| 686 assert(klass->size_helper() >= 0, "illegal instance size"); | |
| 687 const int instance_size = align_object_size(klass->size_helper()); | |
| 688 __ allocate_object(dst, scratch1, scratch2, scratch3, scratch4, | |
| 689 oopDesc::header_size(), instance_size, klass_reg, !klass->is_initialized(), slow_path); | |
| 690 } else { | |
| 691 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, Runtime1::new_instance_id); | |
| 692 __ branch(lir_cond_always, T_ILLEGAL, slow_path); | |
| 693 __ branch_destination(slow_path->continuation()); | |
| 694 } | |
| 695 } | |
| 696 | |
| 697 | |
| 698 static bool is_constant_zero(Instruction* inst) { | |
| 699 IntConstant* c = inst->type()->as_IntConstant(); | |
| 700 if (c) { | |
| 701 return (c->value() == 0); | |
| 702 } | |
| 703 return false; | |
| 704 } | |
| 705 | |
| 706 | |
| 707 static bool positive_constant(Instruction* inst) { | |
| 708 IntConstant* c = inst->type()->as_IntConstant(); | |
| 709 if (c) { | |
| 710 return (c->value() >= 0); | |
| 711 } | |
| 712 return false; | |
| 713 } | |
| 714 | |
| 715 | |
| 716 static ciArrayKlass* as_array_klass(ciType* type) { | |
| 717 if (type != NULL && type->is_array_klass() && type->is_loaded()) { | |
| 718 return (ciArrayKlass*)type; | |
| 719 } else { | |
| 720 return NULL; | |
| 721 } | |
| 722 } | |
| 723 | |
| 2446 | 724 static ciType* phi_declared_type(Phi* phi) { |
| 725 ciType* t = phi->operand_at(0)->declared_type(); | |
| 726 if (t == NULL) { | |
| 727 return NULL; | |
| 728 } | |
| 729 for(int i = 1; i < phi->operand_count(); i++) { | |
| 730 if (t != phi->operand_at(i)->declared_type()) { | |
| 731 return NULL; | |
| 732 } | |
| 733 } | |
| 734 return t; | |
| 735 } | |
| 736 | |
| 0 | 737 void LIRGenerator::arraycopy_helper(Intrinsic* x, int* flagsp, ciArrayKlass** expected_typep) { |
| 738 Instruction* src = x->argument_at(0); | |
| 739 Instruction* src_pos = x->argument_at(1); | |
| 740 Instruction* dst = x->argument_at(2); | |
| 741 Instruction* dst_pos = x->argument_at(3); | |
| 742 Instruction* length = x->argument_at(4); | |
| 743 | |
| 744 // first try to identify the likely type of the arrays involved | |
| 745 ciArrayKlass* expected_type = NULL; | |
| 2446 | 746 bool is_exact = false, src_objarray = false, dst_objarray = false; |
| 0 | 747 { |
| 748 ciArrayKlass* src_exact_type = as_array_klass(src->exact_type()); | |
| 749 ciArrayKlass* src_declared_type = as_array_klass(src->declared_type()); | |
| 2446 | 750 Phi* phi; |
| 751 if (src_declared_type == NULL && (phi = src->as_Phi()) != NULL) { | |
| 752 src_declared_type = as_array_klass(phi_declared_type(phi)); | |
| 753 } | |
| 0 | 754 ciArrayKlass* dst_exact_type = as_array_klass(dst->exact_type()); |
| 755 ciArrayKlass* dst_declared_type = as_array_klass(dst->declared_type()); | |
| 2446 | 756 if (dst_declared_type == NULL && (phi = dst->as_Phi()) != NULL) { |
| 757 dst_declared_type = as_array_klass(phi_declared_type(phi)); | |
| 758 } | |
| 759 | |
| 0 | 760 if (src_exact_type != NULL && src_exact_type == dst_exact_type) { |
| 761 // the types exactly match so the type is fully known | |
| 762 is_exact = true; | |
| 763 expected_type = src_exact_type; | |
| 764 } else if (dst_exact_type != NULL && dst_exact_type->is_obj_array_klass()) { | |
| 765 ciArrayKlass* dst_type = (ciArrayKlass*) dst_exact_type; | |
| 766 ciArrayKlass* src_type = NULL; | |
| 767 if (src_exact_type != NULL && src_exact_type->is_obj_array_klass()) { | |
| 768 src_type = (ciArrayKlass*) src_exact_type; | |
| 769 } else if (src_declared_type != NULL && src_declared_type->is_obj_array_klass()) { | |
| 770 src_type = (ciArrayKlass*) src_declared_type; | |
| 771 } | |
| 772 if (src_type != NULL) { | |
| 773 if (src_type->element_type()->is_subtype_of(dst_type->element_type())) { | |
| 774 is_exact = true; | |
| 775 expected_type = dst_type; | |
| 776 } | |
| 777 } | |
| 778 } | |
| 779 // at least pass along a good guess | |
| 780 if (expected_type == NULL) expected_type = dst_exact_type; | |
| 781 if (expected_type == NULL) expected_type = src_declared_type; | |
| 782 if (expected_type == NULL) expected_type = dst_declared_type; | |
| 2446 | 783 |
| 784 src_objarray = (src_exact_type && src_exact_type->is_obj_array_klass()) || (src_declared_type && src_declared_type->is_obj_array_klass()); | |
| 785 dst_objarray = (dst_exact_type && dst_exact_type->is_obj_array_klass()) || (dst_declared_type && dst_declared_type->is_obj_array_klass()); | |
| 0 | 786 } |
| 787 | |
| 788 // if a probable array type has been identified, figure out if any | |
| 789 // of the required checks for a fast case can be elided. | |
| 790 int flags = LIR_OpArrayCopy::all_flags; | |
| 2446 | 791 |
| 792 if (!src_objarray) | |
| 793 flags &= ~LIR_OpArrayCopy::src_objarray; | |
| 794 if (!dst_objarray) | |
| 795 flags &= ~LIR_OpArrayCopy::dst_objarray; | |
| 796 | |
| 797 if (!x->arg_needs_null_check(0)) | |
| 798 flags &= ~LIR_OpArrayCopy::src_null_check; | |
| 799 if (!x->arg_needs_null_check(2)) | |
| 800 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
| 801 | |
| 802 | |
| 0 | 803 if (expected_type != NULL) { |
| 2446 | 804 Value length_limit = NULL; |
| 805 | |
| 806 IfOp* ifop = length->as_IfOp(); | |
| 807 if (ifop != NULL) { | |
| 808 // look for expressions like min(v, a.length) which ends up as | |
| 809 // x > y ? y : x or x >= y ? y : x | |
| 810 if ((ifop->cond() == If::gtr || ifop->cond() == If::geq) && | |
| 811 ifop->x() == ifop->fval() && | |
| 812 ifop->y() == ifop->tval()) { | |
| 813 length_limit = ifop->y(); | |
| 814 } | |
| 815 } | |
| 816 | |
| 817 // try to skip null checks and range checks | |
| 818 NewArray* src_array = src->as_NewArray(); | |
| 819 if (src_array != NULL) { | |
| 0 | 820 flags &= ~LIR_OpArrayCopy::src_null_check; |
| 2446 | 821 if (length_limit != NULL && |
| 822 src_array->length() == length_limit && | |
| 823 is_constant_zero(src_pos)) { | |
| 824 flags &= ~LIR_OpArrayCopy::src_range_check; | |
| 825 } | |
| 826 } | |
| 827 | |
| 828 NewArray* dst_array = dst->as_NewArray(); | |
| 829 if (dst_array != NULL) { | |
| 0 | 830 flags &= ~LIR_OpArrayCopy::dst_null_check; |
| 2446 | 831 if (length_limit != NULL && |
| 832 dst_array->length() == length_limit && | |
| 833 is_constant_zero(dst_pos)) { | |
| 834 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
| 835 } | |
| 836 } | |
| 0 | 837 |
| 838 // check from incoming constant values | |
| 839 if (positive_constant(src_pos)) | |
| 840 flags &= ~LIR_OpArrayCopy::src_pos_positive_check; | |
| 841 if (positive_constant(dst_pos)) | |
| 842 flags &= ~LIR_OpArrayCopy::dst_pos_positive_check; | |
| 843 if (positive_constant(length)) | |
| 844 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 845 | |
| 846 // see if the range check can be elided, which might also imply | |
| 847 // that src or dst is non-null. | |
| 848 ArrayLength* al = length->as_ArrayLength(); | |
| 849 if (al != NULL) { | |
| 850 if (al->array() == src) { | |
| 851 // it's the length of the source array | |
| 852 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 853 flags &= ~LIR_OpArrayCopy::src_null_check; | |
| 854 if (is_constant_zero(src_pos)) | |
| 855 flags &= ~LIR_OpArrayCopy::src_range_check; | |
| 856 } | |
| 857 if (al->array() == dst) { | |
| 858 // it's the length of the destination array | |
| 859 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 860 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
| 861 if (is_constant_zero(dst_pos)) | |
| 862 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
| 863 } | |
| 864 } | |
| 865 if (is_exact) { | |
| 866 flags &= ~LIR_OpArrayCopy::type_check; | |
| 867 } | |
| 868 } | |
| 869 | |
| 2446 | 870 IntConstant* src_int = src_pos->type()->as_IntConstant(); |
| 871 IntConstant* dst_int = dst_pos->type()->as_IntConstant(); | |
| 872 if (src_int && dst_int) { | |
| 873 int s_offs = src_int->value(); | |
| 874 int d_offs = dst_int->value(); | |
| 875 if (src_int->value() >= dst_int->value()) { | |
| 876 flags &= ~LIR_OpArrayCopy::overlapping; | |
| 877 } | |
| 878 if (expected_type != NULL) { | |
| 879 BasicType t = expected_type->element_type()->basic_type(); | |
| 880 int element_size = type2aelembytes(t); | |
| 881 if (((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && | |
| 882 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0)) { | |
| 883 flags &= ~LIR_OpArrayCopy::unaligned; | |
| 884 } | |
| 885 } | |
| 886 } else if (src_pos == dst_pos || is_constant_zero(dst_pos)) { | |
| 887 // src and dest positions are the same, or dst is zero so assume | |
| 888 // nonoverlapping copy. | |
| 889 flags &= ~LIR_OpArrayCopy::overlapping; | |
| 890 } | |
| 891 | |
| 0 | 892 if (src == dst) { |
| 893 // moving within a single array so no type checks are needed | |
| 894 if (flags & LIR_OpArrayCopy::type_check) { | |
| 895 flags &= ~LIR_OpArrayCopy::type_check; | |
| 896 } | |
| 897 } | |
| 898 *flagsp = flags; | |
| 899 *expected_typep = (ciArrayKlass*)expected_type; | |
| 900 } | |
| 901 | |
| 902 | |
| 903 LIR_Opr LIRGenerator::round_item(LIR_Opr opr) { | |
| 904 assert(opr->is_register(), "why spill if item is not register?"); | |
| 905 | |
| 906 if (RoundFPResults && UseSSE < 1 && opr->is_single_fpu()) { | |
| 907 LIR_Opr result = new_register(T_FLOAT); | |
| 908 set_vreg_flag(result, must_start_in_memory); | |
| 909 assert(opr->is_register(), "only a register can be spilled"); | |
| 910 assert(opr->value_type()->is_float(), "rounding only for floats available"); | |
| 911 __ roundfp(opr, LIR_OprFact::illegalOpr, result); | |
| 912 return result; | |
| 913 } | |
| 914 return opr; | |
| 915 } | |
| 916 | |
| 917 | |
| 918 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) { | |
|
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919 assert(type2size[t] == type2size[value->type()], |
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920 err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type()))); |
| 0 | 921 if (!value->is_register()) { |
| 922 // force into a register | |
| 923 LIR_Opr r = new_register(value->type()); | |
| 924 __ move(value, r); | |
| 925 value = r; | |
| 926 } | |
| 927 | |
| 928 // create a spill location | |
| 929 LIR_Opr tmp = new_register(t); | |
| 930 set_vreg_flag(tmp, LIRGenerator::must_start_in_memory); | |
| 931 | |
| 932 // move from register to spill | |
| 933 __ move(value, tmp); | |
| 934 return tmp; | |
| 935 } | |
| 936 | |
| 937 void LIRGenerator::profile_branch(If* if_instr, If::Condition cond) { | |
| 938 if (if_instr->should_profile()) { | |
| 939 ciMethod* method = if_instr->profiled_method(); | |
| 940 assert(method != NULL, "method should be set if branch is profiled"); | |
|
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941 ciMethodData* md = method->method_data_or_null(); |
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942 assert(md != NULL, "Sanity"); |
| 0 | 943 ciProfileData* data = md->bci_to_data(if_instr->profiled_bci()); |
| 944 assert(data != NULL, "must have profiling data"); | |
| 945 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 946 int taken_count_offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
| 947 int not_taken_count_offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
| 1783 | 948 if (if_instr->is_swapped()) { |
| 949 int t = taken_count_offset; | |
| 950 taken_count_offset = not_taken_count_offset; | |
| 951 not_taken_count_offset = t; | |
| 952 } | |
| 953 | |
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954 LIR_Opr md_reg = new_register(T_METADATA); |
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955 __ metadata2reg(md->constant_encoding(), md_reg); |
| 1783 | 956 |
| 957 LIR_Opr data_offset_reg = new_pointer_register(); | |
| 0 | 958 __ cmove(lir_cond(cond), |
| 1783 | 959 LIR_OprFact::intptrConst(taken_count_offset), |
| 960 LIR_OprFact::intptrConst(not_taken_count_offset), | |
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961 data_offset_reg, as_BasicType(if_instr->x()->type())); |
| 1783 | 962 |
| 963 // MDO cells are intptr_t, so the data_reg width is arch-dependent. | |
| 964 LIR_Opr data_reg = new_pointer_register(); | |
| 965 LIR_Address* data_addr = new LIR_Address(md_reg, data_offset_reg, data_reg->type()); | |
| 2002 | 966 __ move(data_addr, data_reg); |
| 1783 | 967 // Use leal instead of add to avoid destroying condition codes on x86 |
| 0 | 968 LIR_Address* fake_incr_value = new LIR_Address(data_reg, DataLayout::counter_increment, T_INT); |
| 969 __ leal(LIR_OprFact::address(fake_incr_value), data_reg); | |
| 2002 | 970 __ move(data_reg, data_addr); |
| 0 | 971 } |
| 972 } | |
| 973 | |
| 974 // Phi technique: | |
| 975 // This is about passing live values from one basic block to the other. | |
| 976 // In code generated with Java it is rather rare that more than one | |
| 977 // value is on the stack from one basic block to the other. | |
| 978 // We optimize our technique for efficient passing of one value | |
| 979 // (of type long, int, double..) but it can be extended. | |
| 980 // When entering or leaving a basic block, all registers and all spill | |
| 981 // slots are release and empty. We use the released registers | |
| 982 // and spill slots to pass the live values from one block | |
| 983 // to the other. The topmost value, i.e., the value on TOS of expression | |
| 984 // stack is passed in registers. All other values are stored in spilling | |
| 985 // area. Every Phi has an index which designates its spill slot | |
| 986 // At exit of a basic block, we fill the register(s) and spill slots. | |
| 987 // At entry of a basic block, the block_prolog sets up the content of phi nodes | |
| 988 // and locks necessary registers and spilling slots. | |
| 989 | |
| 990 | |
| 991 // move current value to referenced phi function | |
| 992 void LIRGenerator::move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val) { | |
| 993 Phi* phi = sux_val->as_Phi(); | |
| 994 // cur_val can be null without phi being null in conjunction with inlining | |
| 995 if (phi != NULL && cur_val != NULL && cur_val != phi && !phi->is_illegal()) { | |
| 996 LIR_Opr operand = cur_val->operand(); | |
| 997 if (cur_val->operand()->is_illegal()) { | |
| 998 assert(cur_val->as_Constant() != NULL || cur_val->as_Local() != NULL, | |
| 999 "these can be produced lazily"); | |
| 1000 operand = operand_for_instruction(cur_val); | |
| 1001 } | |
| 1002 resolver->move(operand, operand_for_instruction(phi)); | |
| 1003 } | |
| 1004 } | |
| 1005 | |
| 1006 | |
| 1007 // Moves all stack values into their PHI position | |
| 1008 void LIRGenerator::move_to_phi(ValueStack* cur_state) { | |
| 1009 BlockBegin* bb = block(); | |
| 1010 if (bb->number_of_sux() == 1) { | |
| 1011 BlockBegin* sux = bb->sux_at(0); | |
| 1012 assert(sux->number_of_preds() > 0, "invalid CFG"); | |
| 1013 | |
| 1014 // a block with only one predecessor never has phi functions | |
| 1015 if (sux->number_of_preds() > 1) { | |
| 1016 int max_phis = cur_state->stack_size() + cur_state->locals_size(); | |
| 1017 PhiResolver resolver(this, _virtual_register_number + max_phis * 2); | |
| 1018 | |
| 1019 ValueStack* sux_state = sux->state(); | |
| 1020 Value sux_value; | |
| 1021 int index; | |
| 1022 | |
| 1819 | 1023 assert(cur_state->scope() == sux_state->scope(), "not matching"); |
| 1024 assert(cur_state->locals_size() == sux_state->locals_size(), "not matching"); | |
| 1025 assert(cur_state->stack_size() == sux_state->stack_size(), "not matching"); | |
| 1026 | |
| 0 | 1027 for_each_stack_value(sux_state, index, sux_value) { |
| 1028 move_to_phi(&resolver, cur_state->stack_at(index), sux_value); | |
| 1029 } | |
| 1030 | |
| 1031 for_each_local_value(sux_state, index, sux_value) { | |
| 1032 move_to_phi(&resolver, cur_state->local_at(index), sux_value); | |
| 1033 } | |
| 1034 | |
| 1035 assert(cur_state->caller_state() == sux_state->caller_state(), "caller states must be equal"); | |
| 1036 } | |
| 1037 } | |
| 1038 } | |
| 1039 | |
| 1040 | |
| 1041 LIR_Opr LIRGenerator::new_register(BasicType type) { | |
| 1042 int vreg = _virtual_register_number; | |
| 1043 // add a little fudge factor for the bailout, since the bailout is | |
| 1044 // only checked periodically. This gives a few extra registers to | |
| 1045 // hand out before we really run out, which helps us keep from | |
| 1046 // tripping over assertions. | |
| 1047 if (vreg + 20 >= LIR_OprDesc::vreg_max) { | |
| 1048 bailout("out of virtual registers"); | |
| 1049 if (vreg + 2 >= LIR_OprDesc::vreg_max) { | |
| 1050 // wrap it around | |
| 1051 _virtual_register_number = LIR_OprDesc::vreg_base; | |
| 1052 } | |
| 1053 } | |
| 1054 _virtual_register_number += 1; | |
| 1055 return LIR_OprFact::virtual_register(vreg, type); | |
| 1056 } | |
| 1057 | |
| 1058 | |
| 1059 // Try to lock using register in hint | |
| 1060 LIR_Opr LIRGenerator::rlock(Value instr) { | |
| 1061 return new_register(instr->type()); | |
| 1062 } | |
| 1063 | |
| 1064 | |
| 1065 // does an rlock and sets result | |
| 1066 LIR_Opr LIRGenerator::rlock_result(Value x) { | |
| 1067 LIR_Opr reg = rlock(x); | |
| 1068 set_result(x, reg); | |
| 1069 return reg; | |
| 1070 } | |
| 1071 | |
| 1072 | |
| 1073 // does an rlock and sets result | |
| 1074 LIR_Opr LIRGenerator::rlock_result(Value x, BasicType type) { | |
| 1075 LIR_Opr reg; | |
| 1076 switch (type) { | |
| 1077 case T_BYTE: | |
| 1078 case T_BOOLEAN: | |
| 1079 reg = rlock_byte(type); | |
| 1080 break; | |
| 1081 default: | |
| 1082 reg = rlock(x); | |
| 1083 break; | |
| 1084 } | |
| 1085 | |
| 1086 set_result(x, reg); | |
| 1087 return reg; | |
| 1088 } | |
| 1089 | |
| 1090 | |
| 1091 //--------------------------------------------------------------------- | |
| 1092 ciObject* LIRGenerator::get_jobject_constant(Value value) { | |
| 1093 ObjectType* oc = value->type()->as_ObjectType(); | |
| 1094 if (oc) { | |
| 1095 return oc->constant_value(); | |
| 1096 } | |
| 1097 return NULL; | |
| 1098 } | |
| 1099 | |
| 1100 | |
| 1101 void LIRGenerator::do_ExceptionObject(ExceptionObject* x) { | |
| 1102 assert(block()->is_set(BlockBegin::exception_entry_flag), "ExceptionObject only allowed in exception handler block"); | |
| 1103 assert(block()->next() == x, "ExceptionObject must be first instruction of block"); | |
| 1104 | |
| 1105 // no moves are created for phi functions at the begin of exception | |
| 1106 // handlers, so assign operands manually here | |
| 1107 for_each_phi_fun(block(), phi, | |
| 1108 operand_for_instruction(phi)); | |
| 1109 | |
| 1110 LIR_Opr thread_reg = getThreadPointer(); | |
| 2002 | 1111 __ move_wide(new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT), |
| 1112 exceptionOopOpr()); | |
| 1113 __ move_wide(LIR_OprFact::oopConst(NULL), | |
| 1114 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT)); | |
| 1115 __ move_wide(LIR_OprFact::oopConst(NULL), | |
| 1116 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_pc_offset()), T_OBJECT)); | |
| 0 | 1117 |
| 1118 LIR_Opr result = new_register(T_OBJECT); | |
| 1119 __ move(exceptionOopOpr(), result); | |
| 1120 set_result(x, result); | |
| 1121 } | |
| 1122 | |
| 1123 | |
| 1124 //---------------------------------------------------------------------- | |
| 1125 //---------------------------------------------------------------------- | |
| 1126 //---------------------------------------------------------------------- | |
| 1127 //---------------------------------------------------------------------- | |
| 1128 // visitor functions | |
| 1129 //---------------------------------------------------------------------- | |
| 1130 //---------------------------------------------------------------------- | |
| 1131 //---------------------------------------------------------------------- | |
| 1132 //---------------------------------------------------------------------- | |
| 1133 | |
| 1134 void LIRGenerator::do_Phi(Phi* x) { | |
| 1135 // phi functions are never visited directly | |
| 1136 ShouldNotReachHere(); | |
| 1137 } | |
| 1138 | |
| 1139 | |
| 1140 // Code for a constant is generated lazily unless the constant is frequently used and can't be inlined. | |
| 1141 void LIRGenerator::do_Constant(Constant* x) { | |
| 1819 | 1142 if (x->state_before() != NULL) { |
| 0 | 1143 // Any constant with a ValueStack requires patching so emit the patch here |
| 1144 LIR_Opr reg = rlock_result(x); | |
| 1819 | 1145 CodeEmitInfo* info = state_for(x, x->state_before()); |
| 0 | 1146 __ oop2reg_patch(NULL, reg, info); |
| 1147 } else if (x->use_count() > 1 && !can_inline_as_constant(x)) { | |
| 1148 if (!x->is_pinned()) { | |
| 1149 // unpinned constants are handled specially so that they can be | |
| 1150 // put into registers when they are used multiple times within a | |
| 1151 // block. After the block completes their operand will be | |
| 1152 // cleared so that other blocks can't refer to that register. | |
| 1153 set_result(x, load_constant(x)); | |
| 1154 } else { | |
| 1155 LIR_Opr res = x->operand(); | |
| 1156 if (!res->is_valid()) { | |
| 1157 res = LIR_OprFact::value_type(x->type()); | |
| 1158 } | |
| 1159 if (res->is_constant()) { | |
| 1160 LIR_Opr reg = rlock_result(x); | |
| 1161 __ move(res, reg); | |
| 1162 } else { | |
| 1163 set_result(x, res); | |
| 1164 } | |
| 1165 } | |
| 1166 } else { | |
| 1167 set_result(x, LIR_OprFact::value_type(x->type())); | |
| 1168 } | |
| 1169 } | |
| 1170 | |
| 1171 | |
| 1172 void LIRGenerator::do_Local(Local* x) { | |
| 1173 // operand_for_instruction has the side effect of setting the result | |
| 1174 // so there's no need to do it here. | |
| 1175 operand_for_instruction(x); | |
| 1176 } | |
| 1177 | |
| 1178 | |
| 1179 void LIRGenerator::do_IfInstanceOf(IfInstanceOf* x) { | |
| 1180 Unimplemented(); | |
| 1181 } | |
| 1182 | |
| 1183 | |
| 1184 void LIRGenerator::do_Return(Return* x) { | |
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1185 if (compilation()->env()->dtrace_method_probes()) { |
| 0 | 1186 BasicTypeList signature; |
| 2002 | 1187 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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1188 signature.append(T_METADATA); // Method* |
| 0 | 1189 LIR_OprList* args = new LIR_OprList(); |
| 1190 args->append(getThreadPointer()); | |
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1191 LIR_Opr meth = new_register(T_METADATA); |
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1192 __ metadata2reg(method()->constant_encoding(), meth); |
| 0 | 1193 args->append(meth); |
| 1194 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL); | |
| 1195 } | |
| 1196 | |
| 1197 if (x->type()->is_void()) { | |
| 1198 __ return_op(LIR_OprFact::illegalOpr); | |
| 1199 } else { | |
| 1200 LIR_Opr reg = result_register_for(x->type(), /*callee=*/true); | |
| 1201 LIRItem result(x->result(), this); | |
| 1202 | |
| 1203 result.load_item_force(reg); | |
| 1204 __ return_op(result.result()); | |
| 1205 } | |
| 1206 set_no_result(x); | |
| 1207 } | |
| 1208 | |
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1209 // Examble: ref.get() |
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1210 // Combination of LoadField and g1 pre-write barrier |
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1211 void LIRGenerator::do_Reference_get(Intrinsic* x) { |
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1212 |
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1213 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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1214 guarantee(referent_offset > 0, "referent offset not initialized"); |
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1215 |
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1216 assert(x->number_of_arguments() == 1, "wrong type"); |
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1217 |
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1218 LIRItem reference(x->argument_at(0), this); |
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1219 reference.load_item(); |
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1220 |
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1221 // need to perform the null check on the reference objecy |
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1222 CodeEmitInfo* info = NULL; |
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1223 if (x->needs_null_check()) { |
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1224 info = state_for(x); |
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1225 } |
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1226 |
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1227 LIR_Address* referent_field_adr = |
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1228 new LIR_Address(reference.result(), referent_offset, T_OBJECT); |
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1229 |
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1230 LIR_Opr result = rlock_result(x); |
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1231 |
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1232 __ load(referent_field_adr, result, info); |
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1233 |
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1234 // Register the value in the referent field with the pre-barrier |
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1235 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
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1236 result /* pre_val */, |
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1237 false /* do_load */, |
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1238 false /* patch */, |
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1239 NULL /* info */); |
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1240 } |
| 0 | 1241 |
| 6135 | 1242 // Example: clazz.isInstance(object) |
| 1243 void LIRGenerator::do_isInstance(Intrinsic* x) { | |
| 1244 assert(x->number_of_arguments() == 2, "wrong type"); | |
| 1245 | |
| 1246 // TODO could try to substitute this node with an equivalent InstanceOf | |
| 1247 // if clazz is known to be a constant Class. This will pick up newly found | |
| 1248 // constants after HIR construction. I'll leave this to a future change. | |
| 1249 | |
| 1250 // as a first cut, make a simple leaf call to runtime to stay platform independent. | |
| 1251 // could follow the aastore example in a future change. | |
| 1252 | |
| 1253 LIRItem clazz(x->argument_at(0), this); | |
| 1254 LIRItem object(x->argument_at(1), this); | |
| 1255 clazz.load_item(); | |
| 1256 object.load_item(); | |
| 1257 LIR_Opr result = rlock_result(x); | |
| 1258 | |
| 1259 // need to perform null check on clazz | |
| 1260 if (x->needs_null_check()) { | |
| 1261 CodeEmitInfo* info = state_for(x); | |
| 1262 __ null_check(clazz.result(), info); | |
| 1263 } | |
| 1264 | |
| 1265 LIR_Opr call_result = call_runtime(clazz.value(), object.value(), | |
| 1266 CAST_FROM_FN_PTR(address, Runtime1::is_instance_of), | |
| 1267 x->type(), | |
| 1268 NULL); // NULL CodeEmitInfo results in a leaf call | |
| 1269 __ move(call_result, result); | |
| 1270 } | |
| 1271 | |
| 0 | 1272 // Example: object.getClass () |
| 1273 void LIRGenerator::do_getClass(Intrinsic* x) { | |
| 1274 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 1275 | |
| 1276 LIRItem rcvr(x->argument_at(0), this); | |
| 1277 rcvr.load_item(); | |
| 12955 | 1278 LIR_Opr temp = new_register(T_METADATA); |
| 0 | 1279 LIR_Opr result = rlock_result(x); |
| 1280 | |
| 1281 // need to perform the null check on the rcvr | |
| 1282 CodeEmitInfo* info = NULL; | |
| 1283 if (x->needs_null_check()) { | |
| 1819 | 1284 info = state_for(x); |
| 0 | 1285 } |
| 12955 | 1286 |
| 1287 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the | |
| 1288 // meaning of these two is mixed up (see JDK-8026837). | |
| 1289 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info); | |
| 1290 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); | |
| 0 | 1291 } |
| 1292 | |
| 1293 | |
| 1294 // Example: Thread.currentThread() | |
| 1295 void LIRGenerator::do_currentThread(Intrinsic* x) { | |
| 1296 assert(x->number_of_arguments() == 0, "wrong type"); | |
| 1297 LIR_Opr reg = rlock_result(x); | |
| 2002 | 1298 __ move_wide(new LIR_Address(getThreadPointer(), in_bytes(JavaThread::threadObj_offset()), T_OBJECT), reg); |
| 0 | 1299 } |
| 1300 | |
| 1301 | |
| 1302 void LIRGenerator::do_RegisterFinalizer(Intrinsic* x) { | |
| 1303 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 1304 LIRItem receiver(x->argument_at(0), this); | |
| 1305 | |
| 1306 receiver.load_item(); | |
| 1307 BasicTypeList signature; | |
| 1308 signature.append(T_OBJECT); // receiver | |
| 1309 LIR_OprList* args = new LIR_OprList(); | |
| 1310 args->append(receiver.result()); | |
| 1311 CodeEmitInfo* info = state_for(x, x->state()); | |
| 1312 call_runtime(&signature, args, | |
| 1313 CAST_FROM_FN_PTR(address, Runtime1::entry_for(Runtime1::register_finalizer_id)), | |
| 1314 voidType, info); | |
| 1315 | |
| 1316 set_no_result(x); | |
| 1317 } | |
| 1318 | |
| 1319 | |
| 1320 //------------------------local access-------------------------------------- | |
| 1321 | |
| 1322 LIR_Opr LIRGenerator::operand_for_instruction(Instruction* x) { | |
| 1323 if (x->operand()->is_illegal()) { | |
| 1324 Constant* c = x->as_Constant(); | |
| 1325 if (c != NULL) { | |
| 1326 x->set_operand(LIR_OprFact::value_type(c->type())); | |
| 1327 } else { | |
| 1328 assert(x->as_Phi() || x->as_Local() != NULL, "only for Phi and Local"); | |
| 1329 // allocate a virtual register for this local or phi | |
| 1330 x->set_operand(rlock(x)); | |
| 1331 _instruction_for_operand.at_put_grow(x->operand()->vreg_number(), x, NULL); | |
| 1332 } | |
| 1333 } | |
| 1334 return x->operand(); | |
| 1335 } | |
| 1336 | |
| 1337 | |
| 1338 Instruction* LIRGenerator::instruction_for_opr(LIR_Opr opr) { | |
| 1339 if (opr->is_virtual()) { | |
| 1340 return instruction_for_vreg(opr->vreg_number()); | |
| 1341 } | |
| 1342 return NULL; | |
| 1343 } | |
| 1344 | |
| 1345 | |
| 1346 Instruction* LIRGenerator::instruction_for_vreg(int reg_num) { | |
| 1347 if (reg_num < _instruction_for_operand.length()) { | |
| 1348 return _instruction_for_operand.at(reg_num); | |
| 1349 } | |
| 1350 return NULL; | |
| 1351 } | |
| 1352 | |
| 1353 | |
| 1354 void LIRGenerator::set_vreg_flag(int vreg_num, VregFlag f) { | |
| 1355 if (_vreg_flags.size_in_bits() == 0) { | |
| 1356 BitMap2D temp(100, num_vreg_flags); | |
| 1357 temp.clear(); | |
| 1358 _vreg_flags = temp; | |
| 1359 } | |
| 1360 _vreg_flags.at_put_grow(vreg_num, f, true); | |
| 1361 } | |
| 1362 | |
| 1363 bool LIRGenerator::is_vreg_flag_set(int vreg_num, VregFlag f) { | |
| 1364 if (!_vreg_flags.is_valid_index(vreg_num, f)) { | |
| 1365 return false; | |
| 1366 } | |
| 1367 return _vreg_flags.at(vreg_num, f); | |
| 1368 } | |
| 1369 | |
| 1370 | |
| 1371 // Block local constant handling. This code is useful for keeping | |
| 1372 // unpinned constants and constants which aren't exposed in the IR in | |
| 1373 // registers. Unpinned Constant instructions have their operands | |
| 1374 // cleared when the block is finished so that other blocks can't end | |
| 1375 // up referring to their registers. | |
| 1376 | |
| 1377 LIR_Opr LIRGenerator::load_constant(Constant* x) { | |
| 1378 assert(!x->is_pinned(), "only for unpinned constants"); | |
| 1379 _unpinned_constants.append(x); | |
| 1380 return load_constant(LIR_OprFact::value_type(x->type())->as_constant_ptr()); | |
| 1381 } | |
| 1382 | |
| 1383 | |
| 1384 LIR_Opr LIRGenerator::load_constant(LIR_Const* c) { | |
| 1385 BasicType t = c->type(); | |
| 1386 for (int i = 0; i < _constants.length(); i++) { | |
| 1387 LIR_Const* other = _constants.at(i); | |
| 1388 if (t == other->type()) { | |
| 1389 switch (t) { | |
| 1390 case T_INT: | |
| 1391 case T_FLOAT: | |
| 1392 if (c->as_jint_bits() != other->as_jint_bits()) continue; | |
| 1393 break; | |
| 1394 case T_LONG: | |
| 1395 case T_DOUBLE: | |
|
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1396 if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue; |
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1397 if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue; |
| 0 | 1398 break; |
| 1399 case T_OBJECT: | |
| 1400 if (c->as_jobject() != other->as_jobject()) continue; | |
| 1401 break; | |
| 1402 } | |
| 1403 return _reg_for_constants.at(i); | |
| 1404 } | |
| 1405 } | |
| 1406 | |
| 1407 LIR_Opr result = new_register(t); | |
| 1408 __ move((LIR_Opr)c, result); | |
| 1409 _constants.append(c); | |
| 1410 _reg_for_constants.append(result); | |
| 1411 return result; | |
| 1412 } | |
| 1413 | |
| 1414 // Various barriers | |
| 1415 | |
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1416 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1417 bool do_load, bool patch, CodeEmitInfo* info) { |
| 342 | 1418 // Do the pre-write barrier, if any. |
| 1419 switch (_bs->kind()) { | |
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1420 #if INCLUDE_ALL_GCS |
| 342 | 1421 case BarrierSet::G1SATBCT: |
| 1422 case BarrierSet::G1SATBCTLogging: | |
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1423 G1SATBCardTableModRef_pre_barrier(addr_opr, pre_val, do_load, patch, info); |
| 342 | 1424 break; |
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1425 #endif // INCLUDE_ALL_GCS |
| 342 | 1426 case BarrierSet::CardTableModRef: |
| 1427 case BarrierSet::CardTableExtension: | |
| 1428 // No pre barriers | |
| 1429 break; | |
| 1430 case BarrierSet::ModRef: | |
| 1431 case BarrierSet::Other: | |
| 1432 // No pre barriers | |
| 1433 break; | |
| 1434 default : | |
| 1435 ShouldNotReachHere(); | |
| 1436 | |
| 1437 } | |
| 1438 } | |
| 1439 | |
| 0 | 1440 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
| 342 | 1441 switch (_bs->kind()) { |
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1442 #if INCLUDE_ALL_GCS |
| 342 | 1443 case BarrierSet::G1SATBCT: |
| 1444 case BarrierSet::G1SATBCTLogging: | |
| 1445 G1SATBCardTableModRef_post_barrier(addr, new_val); | |
| 1446 break; | |
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1447 #endif // INCLUDE_ALL_GCS |
| 0 | 1448 case BarrierSet::CardTableModRef: |
| 1449 case BarrierSet::CardTableExtension: | |
| 1450 CardTableModRef_post_barrier(addr, new_val); | |
| 1451 break; | |
| 1452 case BarrierSet::ModRef: | |
| 1453 case BarrierSet::Other: | |
| 1454 // No post barriers | |
| 1455 break; | |
| 1456 default : | |
| 1457 ShouldNotReachHere(); | |
| 1458 } | |
| 1459 } | |
| 1460 | |
| 342 | 1461 //////////////////////////////////////////////////////////////////////// |
|
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1462 #if INCLUDE_ALL_GCS |
| 342 | 1463 |
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1464 void LIRGenerator::G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1465 bool do_load, bool patch, CodeEmitInfo* info) { |
| 342 | 1466 // First we test whether marking is in progress. |
| 1467 BasicType flag_type; | |
| 1468 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
| 1469 flag_type = T_INT; | |
| 1470 } else { | |
| 1471 guarantee(in_bytes(PtrQueue::byte_width_of_active()) == 1, | |
| 1472 "Assumption"); | |
| 1473 flag_type = T_BYTE; | |
| 1474 } | |
| 1475 LIR_Opr thrd = getThreadPointer(); | |
| 1476 LIR_Address* mark_active_flag_addr = | |
| 1477 new LIR_Address(thrd, | |
| 1478 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1479 PtrQueue::byte_offset_of_active()), | |
| 1480 flag_type); | |
| 1481 // Read the marking-in-progress flag. | |
| 1482 LIR_Opr flag_val = new_register(T_INT); | |
| 1483 __ load(mark_active_flag_addr, flag_val); | |
| 1484 __ cmp(lir_cond_notEqual, flag_val, LIR_OprFact::intConst(0)); | |
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1485 |
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1486 LIR_PatchCode pre_val_patch_code = lir_patch_none; |
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1487 |
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1488 CodeStub* slow; |
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1489 |
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1490 if (do_load) { |
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1491 assert(pre_val == LIR_OprFact::illegalOpr, "sanity"); |
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1492 assert(addr_opr != LIR_OprFact::illegalOpr, "sanity"); |
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1493 |
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1494 if (patch) |
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1495 pre_val_patch_code = lir_patch_normal; |
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1496 |
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1497 pre_val = new_register(T_OBJECT); |
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1498 |
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1499 if (!addr_opr->is_address()) { |
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1500 assert(addr_opr->is_register(), "must be"); |
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1501 addr_opr = LIR_OprFact::address(new LIR_Address(addr_opr, T_OBJECT)); |
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1502 } |
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1503 slow = new G1PreBarrierStub(addr_opr, pre_val, pre_val_patch_code, info); |
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1504 } else { |
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1505 assert(addr_opr == LIR_OprFact::illegalOpr, "sanity"); |
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1506 assert(pre_val->is_register(), "must be"); |
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1507 assert(pre_val->type() == T_OBJECT, "must be an object"); |
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1508 assert(info == NULL, "sanity"); |
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1509 |
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1510 slow = new G1PreBarrierStub(pre_val); |
| 342 | 1511 } |
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1512 |
| 342 | 1513 __ branch(lir_cond_notEqual, T_INT, slow); |
| 1514 __ branch_destination(slow->continuation()); | |
| 1515 } | |
| 1516 | |
| 1517 void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { | |
| 1518 // If the "new_val" is a constant NULL, no barrier is necessary. | |
| 1519 if (new_val->is_constant() && | |
| 1520 new_val->as_constant_ptr()->as_jobject() == NULL) return; | |
| 1521 | |
| 1522 if (!new_val->is_register()) { | |
| 1572 | 1523 LIR_Opr new_val_reg = new_register(T_OBJECT); |
| 342 | 1524 if (new_val->is_constant()) { |
| 1525 __ move(new_val, new_val_reg); | |
| 1526 } else { | |
| 1527 __ leal(new_val, new_val_reg); | |
| 1528 } | |
| 1529 new_val = new_val_reg; | |
| 1530 } | |
| 1531 assert(new_val->is_register(), "must be a register at this point"); | |
| 1532 | |
| 1533 if (addr->is_address()) { | |
| 1534 LIR_Address* address = addr->as_address_ptr(); | |
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1535 LIR_Opr ptr = new_pointer_register(); |
| 342 | 1536 if (!address->index()->is_valid() && address->disp() == 0) { |
| 1537 __ move(address->base(), ptr); | |
| 1538 } else { | |
| 1539 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
| 1540 __ leal(addr, ptr); | |
| 1541 } | |
| 1542 addr = ptr; | |
| 1543 } | |
| 1544 assert(addr->is_register(), "must be a register at this point"); | |
| 1545 | |
| 1546 LIR_Opr xor_res = new_pointer_register(); | |
| 1547 LIR_Opr xor_shift_res = new_pointer_register(); | |
| 1548 if (TwoOperandLIRForm ) { | |
| 1549 __ move(addr, xor_res); | |
| 1550 __ logical_xor(xor_res, new_val, xor_res); | |
| 1551 __ move(xor_res, xor_shift_res); | |
| 1552 __ unsigned_shift_right(xor_shift_res, | |
| 1553 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
| 1554 xor_shift_res, | |
| 1555 LIR_OprDesc::illegalOpr()); | |
| 1556 } else { | |
| 1557 __ logical_xor(addr, new_val, xor_res); | |
| 1558 __ unsigned_shift_right(xor_res, | |
| 1559 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
| 1560 xor_shift_res, | |
| 1561 LIR_OprDesc::illegalOpr()); | |
| 1562 } | |
| 1563 | |
| 1564 if (!new_val->is_register()) { | |
| 1572 | 1565 LIR_Opr new_val_reg = new_register(T_OBJECT); |
| 342 | 1566 __ leal(new_val, new_val_reg); |
| 1567 new_val = new_val_reg; | |
| 1568 } | |
| 1569 assert(new_val->is_register(), "must be a register at this point"); | |
| 1570 | |
| 1571 __ cmp(lir_cond_notEqual, xor_shift_res, LIR_OprFact::intptrConst(NULL_WORD)); | |
| 1572 | |
| 1573 CodeStub* slow = new G1PostBarrierStub(addr, new_val); | |
| 1572 | 1574 __ branch(lir_cond_notEqual, LP64_ONLY(T_LONG) NOT_LP64(T_INT), slow); |
| 342 | 1575 __ branch_destination(slow->continuation()); |
| 1576 } | |
| 1577 | |
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1578 #endif // INCLUDE_ALL_GCS |
| 342 | 1579 //////////////////////////////////////////////////////////////////////// |
| 1580 | |
| 0 | 1581 void LIRGenerator::CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
| 1582 | |
| 342 | 1583 assert(sizeof(*((CardTableModRefBS*)_bs)->byte_map_base) == sizeof(jbyte), "adjust this code"); |
| 1584 LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base); | |
| 0 | 1585 if (addr->is_address()) { |
| 1586 LIR_Address* address = addr->as_address_ptr(); | |
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1587 // ptr cannot be an object because we use this barrier for array card marks |
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1588 // and addr can point in the middle of an array. |
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1589 LIR_Opr ptr = new_pointer_register(); |
| 0 | 1590 if (!address->index()->is_valid() && address->disp() == 0) { |
| 1591 __ move(address->base(), ptr); | |
| 1592 } else { | |
| 1593 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
| 1594 __ leal(addr, ptr); | |
| 1595 } | |
| 1596 addr = ptr; | |
| 1597 } | |
| 1598 assert(addr->is_register(), "must be a register at this point"); | |
| 1599 | |
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1600 #ifdef CARDTABLEMODREF_POST_BARRIER_HELPER |
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1601 CardTableModRef_post_barrier_helper(addr, card_table_base); |
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1602 #else |
| 0 | 1603 LIR_Opr tmp = new_pointer_register(); |
| 1604 if (TwoOperandLIRForm) { | |
| 1605 __ move(addr, tmp); | |
| 1606 __ unsigned_shift_right(tmp, CardTableModRefBS::card_shift, tmp); | |
| 1607 } else { | |
| 1608 __ unsigned_shift_right(addr, CardTableModRefBS::card_shift, tmp); | |
| 1609 } | |
| 1610 if (can_inline_as_constant(card_table_base)) { | |
| 1611 __ move(LIR_OprFact::intConst(0), | |
| 1612 new LIR_Address(tmp, card_table_base->as_jint(), T_BYTE)); | |
| 1613 } else { | |
| 1614 __ move(LIR_OprFact::intConst(0), | |
| 1615 new LIR_Address(tmp, load_constant(card_table_base), | |
| 1616 T_BYTE)); | |
| 1617 } | |
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1618 #endif |
| 0 | 1619 } |
| 1620 | |
| 1621 | |
| 1622 //------------------------field access-------------------------------------- | |
| 1623 | |
| 1624 // Comment copied form templateTable_i486.cpp | |
| 1625 // ---------------------------------------------------------------------------- | |
| 1626 // Volatile variables demand their effects be made known to all CPU's in | |
| 1627 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 1628 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 1629 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 1630 // reorder volatile references, the hardware also must not reorder them). | |
| 1631 // | |
| 1632 // According to the new Java Memory Model (JMM): | |
| 1633 // (1) All volatiles are serialized wrt to each other. | |
| 1634 // ALSO reads & writes act as aquire & release, so: | |
| 1635 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 1636 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 1637 // that happen before the volatile read to float down below it. | |
| 1638 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 1639 // that happen BEFORE the write float down to after the write. It's OK for | |
| 1640 // non-volatile memory refs that happen after the volatile write to float up | |
| 1641 // before it. | |
| 1642 // | |
| 1643 // We only put in barriers around volatile refs (they are expensive), not | |
| 1644 // _between_ memory refs (that would require us to track the flavor of the | |
| 1645 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 1646 // before volatile stores and after volatile loads. These nearly cover | |
| 1647 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 1648 // case is placed after volatile-stores although it could just as well go | |
| 1649 // before volatile-loads. | |
| 1650 | |
| 1651 | |
| 1652 void LIRGenerator::do_StoreField(StoreField* x) { | |
| 1653 bool needs_patching = x->needs_patching(); | |
| 1654 bool is_volatile = x->field()->is_volatile(); | |
| 1655 BasicType field_type = x->field_type(); | |
| 1656 bool is_oop = (field_type == T_ARRAY || field_type == T_OBJECT); | |
| 1657 | |
| 1658 CodeEmitInfo* info = NULL; | |
| 1659 if (needs_patching) { | |
| 1660 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
| 1661 info = state_for(x, x->state_before()); | |
| 1662 } else if (x->needs_null_check()) { | |
| 1663 NullCheck* nc = x->explicit_null_check(); | |
| 1664 if (nc == NULL) { | |
| 1819 | 1665 info = state_for(x); |
| 0 | 1666 } else { |
| 1667 info = state_for(nc); | |
| 1668 } | |
| 1669 } | |
| 1670 | |
| 1671 | |
| 1672 LIRItem object(x->obj(), this); | |
| 1673 LIRItem value(x->value(), this); | |
| 1674 | |
| 1675 object.load_item(); | |
| 1676 | |
| 1677 if (is_volatile || needs_patching) { | |
| 1678 // load item if field is volatile (fewer special cases for volatiles) | |
| 1679 // load item if field not initialized | |
| 1680 // load item if field not constant | |
| 1681 // because of code patching we cannot inline constants | |
| 1682 if (field_type == T_BYTE || field_type == T_BOOLEAN) { | |
| 1683 value.load_byte_item(); | |
| 1684 } else { | |
| 1685 value.load_item(); | |
| 1686 } | |
| 1687 } else { | |
| 1688 value.load_for_store(field_type); | |
| 1689 } | |
| 1690 | |
| 1691 set_no_result(x); | |
| 1692 | |
| 1819 | 1693 #ifndef PRODUCT |
| 0 | 1694 if (PrintNotLoaded && needs_patching) { |
| 1695 tty->print_cr(" ###class not loaded at store_%s bci %d", | |
| 1819 | 1696 x->is_static() ? "static" : "field", x->printable_bci()); |
| 0 | 1697 } |
| 1819 | 1698 #endif |
| 0 | 1699 |
| 1700 if (x->needs_null_check() && | |
| 1701 (needs_patching || | |
| 1702 MacroAssembler::needs_explicit_null_check(x->offset()))) { | |
| 1703 // emit an explicit null check because the offset is too large | |
| 1704 __ null_check(object.result(), new CodeEmitInfo(info)); | |
| 1705 } | |
| 1706 | |
| 1707 LIR_Address* address; | |
| 1708 if (needs_patching) { | |
| 1709 // we need to patch the offset in the instruction so don't allow | |
| 1710 // generate_address to try to be smart about emitting the -1. | |
| 1711 // Otherwise the patching code won't know how to find the | |
| 1712 // instruction to patch. | |
|
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1713 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
| 0 | 1714 } else { |
| 1715 address = generate_address(object.result(), x->offset(), field_type); | |
| 1716 } | |
| 1717 | |
| 1718 if (is_volatile && os::is_MP()) { | |
| 1719 __ membar_release(); | |
| 1720 } | |
| 1721 | |
| 342 | 1722 if (is_oop) { |
| 1723 // Do the pre-write barrier, if any. | |
| 1724 pre_barrier(LIR_OprFact::address(address), | |
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1725 LIR_OprFact::illegalOpr /* pre_val */, |
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1726 true /* do_load*/, |
| 342 | 1727 needs_patching, |
| 1728 (info ? new CodeEmitInfo(info) : NULL)); | |
| 1729 } | |
| 1730 | |
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1731 if (is_volatile && !needs_patching) { |
| 0 | 1732 volatile_field_store(value.result(), address, info); |
| 1733 } else { | |
| 1734 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
| 1735 __ store(value.result(), address, info, patch_code); | |
| 1736 } | |
| 1737 | |
| 1738 if (is_oop) { | |
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1739 // Store to object so mark the card of the header |
| 0 | 1740 post_barrier(object.result(), value.result()); |
| 1741 } | |
| 1742 | |
| 1743 if (is_volatile && os::is_MP()) { | |
| 1744 __ membar(); | |
| 1745 } | |
| 1746 } | |
| 1747 | |
| 1748 | |
| 1749 void LIRGenerator::do_LoadField(LoadField* x) { | |
| 1750 bool needs_patching = x->needs_patching(); | |
| 1751 bool is_volatile = x->field()->is_volatile(); | |
| 1752 BasicType field_type = x->field_type(); | |
| 1753 | |
| 1754 CodeEmitInfo* info = NULL; | |
| 1755 if (needs_patching) { | |
| 1756 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
| 1757 info = state_for(x, x->state_before()); | |
| 1758 } else if (x->needs_null_check()) { | |
| 1759 NullCheck* nc = x->explicit_null_check(); | |
| 1760 if (nc == NULL) { | |
| 1819 | 1761 info = state_for(x); |
| 0 | 1762 } else { |
| 1763 info = state_for(nc); | |
| 1764 } | |
| 1765 } | |
| 1766 | |
| 1767 LIRItem object(x->obj(), this); | |
| 1768 | |
| 1769 object.load_item(); | |
| 1770 | |
| 1819 | 1771 #ifndef PRODUCT |
| 0 | 1772 if (PrintNotLoaded && needs_patching) { |
| 1773 tty->print_cr(" ###class not loaded at load_%s bci %d", | |
| 1819 | 1774 x->is_static() ? "static" : "field", x->printable_bci()); |
| 0 | 1775 } |
| 1819 | 1776 #endif |
| 0 | 1777 |
| 8860 | 1778 bool stress_deopt = StressLoopInvariantCodeMotion && info && info->deoptimize_on_exception(); |
| 0 | 1779 if (x->needs_null_check() && |
| 1780 (needs_patching || | |
| 8860 | 1781 MacroAssembler::needs_explicit_null_check(x->offset()) || |
| 1782 stress_deopt)) { | |
| 1783 LIR_Opr obj = object.result(); | |
| 1784 if (stress_deopt) { | |
| 1785 obj = new_register(T_OBJECT); | |
| 1786 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1787 } | |
| 0 | 1788 // emit an explicit null check because the offset is too large |
| 8860 | 1789 __ null_check(obj, new CodeEmitInfo(info)); |
| 0 | 1790 } |
| 1791 | |
| 1792 LIR_Opr reg = rlock_result(x, field_type); | |
| 1793 LIR_Address* address; | |
| 1794 if (needs_patching) { | |
| 1795 // we need to patch the offset in the instruction so don't allow | |
| 1796 // generate_address to try to be smart about emitting the -1. | |
| 1797 // Otherwise the patching code won't know how to find the | |
| 1798 // instruction to patch. | |
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1799 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
| 0 | 1800 } else { |
| 1801 address = generate_address(object.result(), x->offset(), field_type); | |
| 1802 } | |
| 1803 | |
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1804 if (is_volatile && !needs_patching) { |
| 0 | 1805 volatile_field_load(address, reg, info); |
| 1806 } else { | |
| 1807 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
| 1808 __ load(address, reg, info, patch_code); | |
| 1809 } | |
| 1810 | |
| 1811 if (is_volatile && os::is_MP()) { | |
| 1812 __ membar_acquire(); | |
| 1813 } | |
| 1814 } | |
| 1815 | |
| 1816 | |
| 1817 //------------------------java.nio.Buffer.checkIndex------------------------ | |
| 1818 | |
| 1819 // int java.nio.Buffer.checkIndex(int) | |
| 1820 void LIRGenerator::do_NIOCheckIndex(Intrinsic* x) { | |
| 1821 // NOTE: by the time we are in checkIndex() we are guaranteed that | |
| 1822 // the buffer is non-null (because checkIndex is package-private and | |
| 1823 // only called from within other methods in the buffer). | |
| 1824 assert(x->number_of_arguments() == 2, "wrong type"); | |
| 1825 LIRItem buf (x->argument_at(0), this); | |
| 1826 LIRItem index(x->argument_at(1), this); | |
| 1827 buf.load_item(); | |
| 1828 index.load_item(); | |
| 1829 | |
| 1830 LIR_Opr result = rlock_result(x); | |
| 1831 if (GenerateRangeChecks) { | |
| 1832 CodeEmitInfo* info = state_for(x); | |
| 1833 CodeStub* stub = new RangeCheckStub(info, index.result(), true); | |
| 1834 if (index.result()->is_constant()) { | |
| 1835 cmp_mem_int(lir_cond_belowEqual, buf.result(), java_nio_Buffer::limit_offset(), index.result()->as_jint(), info); | |
| 1836 __ branch(lir_cond_belowEqual, T_INT, stub); | |
| 1837 } else { | |
| 1838 cmp_reg_mem(lir_cond_aboveEqual, index.result(), buf.result(), | |
| 1839 java_nio_Buffer::limit_offset(), T_INT, info); | |
| 1840 __ branch(lir_cond_aboveEqual, T_INT, stub); | |
| 1841 } | |
| 1842 __ move(index.result(), result); | |
| 1843 } else { | |
| 1844 // Just load the index into the result register | |
| 1845 __ move(index.result(), result); | |
| 1846 } | |
| 1847 } | |
| 1848 | |
| 1849 | |
| 1850 //------------------------array access-------------------------------------- | |
| 1851 | |
| 1852 | |
| 1853 void LIRGenerator::do_ArrayLength(ArrayLength* x) { | |
| 1854 LIRItem array(x->array(), this); | |
| 1855 array.load_item(); | |
| 1856 LIR_Opr reg = rlock_result(x); | |
| 1857 | |
| 1858 CodeEmitInfo* info = NULL; | |
| 1859 if (x->needs_null_check()) { | |
| 1860 NullCheck* nc = x->explicit_null_check(); | |
| 1861 if (nc == NULL) { | |
| 1862 info = state_for(x); | |
| 1863 } else { | |
| 1864 info = state_for(nc); | |
| 1865 } | |
| 8860 | 1866 if (StressLoopInvariantCodeMotion && info->deoptimize_on_exception()) { |
| 1867 LIR_Opr obj = new_register(T_OBJECT); | |
| 1868 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1869 __ null_check(obj, new CodeEmitInfo(info)); | |
| 1870 } | |
| 0 | 1871 } |
| 1872 __ load(new LIR_Address(array.result(), arrayOopDesc::length_offset_in_bytes(), T_INT), reg, info, lir_patch_none); | |
| 1873 } | |
| 1874 | |
| 1875 | |
| 1876 void LIRGenerator::do_LoadIndexed(LoadIndexed* x) { | |
| 1877 bool use_length = x->length() != NULL; | |
| 1878 LIRItem array(x->array(), this); | |
| 1879 LIRItem index(x->index(), this); | |
| 1880 LIRItem length(this); | |
| 8860 | 1881 bool needs_range_check = x->compute_needs_range_check(); |
| 1882 | |
| 1883 if (use_length && needs_range_check) { | |
| 1884 length.set_instruction(x->length()); | |
| 1885 length.load_item(); | |
| 0 | 1886 } |
| 1887 | |
| 1888 array.load_item(); | |
| 1889 if (index.is_constant() && can_inline_as_constant(x->index())) { | |
| 1890 // let it be a constant | |
| 1891 index.dont_load_item(); | |
| 1892 } else { | |
| 1893 index.load_item(); | |
| 1894 } | |
| 1895 | |
| 1896 CodeEmitInfo* range_check_info = state_for(x); | |
| 1897 CodeEmitInfo* null_check_info = NULL; | |
| 1898 if (x->needs_null_check()) { | |
| 1899 NullCheck* nc = x->explicit_null_check(); | |
| 1900 if (nc != NULL) { | |
| 1901 null_check_info = state_for(nc); | |
| 1902 } else { | |
| 1903 null_check_info = range_check_info; | |
| 1904 } | |
| 8860 | 1905 if (StressLoopInvariantCodeMotion && null_check_info->deoptimize_on_exception()) { |
| 1906 LIR_Opr obj = new_register(T_OBJECT); | |
| 1907 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1908 __ null_check(obj, new CodeEmitInfo(null_check_info)); | |
| 1909 } | |
| 0 | 1910 } |
| 1911 | |
| 1912 // emit array address setup early so it schedules better | |
| 1913 LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), false); | |
| 1914 | |
| 1915 if (GenerateRangeChecks && needs_range_check) { | |
| 8860 | 1916 if (StressLoopInvariantCodeMotion && range_check_info->deoptimize_on_exception()) { |
| 1917 __ branch(lir_cond_always, T_ILLEGAL, new RangeCheckStub(range_check_info, index.result())); | |
| 1918 } else if (use_length) { | |
| 0 | 1919 // TODO: use a (modified) version of array_range_check that does not require a |
| 1920 // constant length to be loaded to a register | |
| 1921 __ cmp(lir_cond_belowEqual, length.result(), index.result()); | |
| 1922 __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result())); | |
| 1923 } else { | |
| 1924 array_range_check(array.result(), index.result(), null_check_info, range_check_info); | |
| 1925 // The range check performs the null check, so clear it out for the load | |
| 1926 null_check_info = NULL; | |
| 1927 } | |
| 1928 } | |
| 1929 | |
| 1930 __ move(array_addr, rlock_result(x, x->elt_type()), null_check_info); | |
| 1931 } | |
| 1932 | |
| 1933 | |
| 1934 void LIRGenerator::do_NullCheck(NullCheck* x) { | |
| 1935 if (x->can_trap()) { | |
| 1936 LIRItem value(x->obj(), this); | |
| 1937 value.load_item(); | |
| 1938 CodeEmitInfo* info = state_for(x); | |
| 1939 __ null_check(value.result(), info); | |
| 1940 } | |
| 1941 } | |
| 1942 | |
| 1943 | |
|
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1944 void LIRGenerator::do_TypeCast(TypeCast* x) { |
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1945 LIRItem value(x->obj(), this); |
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1946 value.load_item(); |
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1947 // the result is the same as from the node we are casting |
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1948 set_result(x, value.result()); |
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1949 } |
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1950 |
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1951 |
| 0 | 1952 void LIRGenerator::do_Throw(Throw* x) { |
| 1953 LIRItem exception(x->exception(), this); | |
| 1954 exception.load_item(); | |
| 1955 set_no_result(x); | |
| 1956 LIR_Opr exception_opr = exception.result(); | |
| 1957 CodeEmitInfo* info = state_for(x, x->state()); | |
| 1958 | |
| 1959 #ifndef PRODUCT | |
| 1960 if (PrintC1Statistics) { | |
| 1783 | 1961 increment_counter(Runtime1::throw_count_address(), T_INT); |
| 0 | 1962 } |
| 1963 #endif | |
| 1964 | |
| 1965 // check if the instruction has an xhandler in any of the nested scopes | |
| 1966 bool unwind = false; | |
| 1967 if (info->exception_handlers()->length() == 0) { | |
| 1968 // this throw is not inside an xhandler | |
| 1969 unwind = true; | |
| 1970 } else { | |
| 1971 // get some idea of the throw type | |
| 1972 bool type_is_exact = true; | |
| 1973 ciType* throw_type = x->exception()->exact_type(); | |
| 1974 if (throw_type == NULL) { | |
| 1975 type_is_exact = false; | |
| 1976 throw_type = x->exception()->declared_type(); | |
| 1977 } | |
| 1978 if (throw_type != NULL && throw_type->is_instance_klass()) { | |
| 1979 ciInstanceKlass* throw_klass = (ciInstanceKlass*)throw_type; | |
| 1980 unwind = !x->exception_handlers()->could_catch(throw_klass, type_is_exact); | |
| 1981 } | |
| 1982 } | |
| 1983 | |
| 1984 // do null check before moving exception oop into fixed register | |
| 1985 // to avoid a fixed interval with an oop during the null check. | |
| 1986 // Use a copy of the CodeEmitInfo because debug information is | |
| 1987 // different for null_check and throw. | |
| 1988 if (GenerateCompilerNullChecks && | |
| 1989 (x->exception()->as_NewInstance() == NULL && x->exception()->as_ExceptionObject() == NULL)) { | |
| 1990 // if the exception object wasn't created using new then it might be null. | |
| 1819 | 1991 __ null_check(exception_opr, new CodeEmitInfo(info, x->state()->copy(ValueStack::ExceptionState, x->state()->bci()))); |
| 0 | 1992 } |
| 1993 | |
|
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1994 if (compilation()->env()->jvmti_can_post_on_exceptions()) { |
| 0 | 1995 // we need to go through the exception lookup path to get JVMTI |
| 1996 // notification done | |
| 1997 unwind = false; | |
| 1998 } | |
| 1999 | |
| 2000 // move exception oop into fixed register | |
| 2001 __ move(exception_opr, exceptionOopOpr()); | |
| 2002 | |
| 2003 if (unwind) { | |
|
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2004 __ unwind_exception(exceptionOopOpr()); |
| 0 | 2005 } else { |
| 2006 __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info); | |
| 2007 } | |
| 2008 } | |
| 2009 | |
| 2010 | |
| 2011 void LIRGenerator::do_RoundFP(RoundFP* x) { | |
| 2012 LIRItem input(x->input(), this); | |
| 2013 input.load_item(); | |
| 2014 LIR_Opr input_opr = input.result(); | |
| 2015 assert(input_opr->is_register(), "why round if value is not in a register?"); | |
| 2016 assert(input_opr->is_single_fpu() || input_opr->is_double_fpu(), "input should be floating-point value"); | |
| 2017 if (input_opr->is_single_fpu()) { | |
| 2018 set_result(x, round_item(input_opr)); // This code path not currently taken | |
| 2019 } else { | |
| 2020 LIR_Opr result = new_register(T_DOUBLE); | |
| 2021 set_vreg_flag(result, must_start_in_memory); | |
| 2022 __ roundfp(input_opr, LIR_OprFact::illegalOpr, result); | |
| 2023 set_result(x, result); | |
| 2024 } | |
| 2025 } | |
| 2026 | |
|
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2027 // Here UnsafeGetRaw may have x->base() and x->index() be int or long |
|
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2028 // on both 64 and 32 bits. Expecting x->base() to be always long on 64bit. |
| 0 | 2029 void LIRGenerator::do_UnsafeGetRaw(UnsafeGetRaw* x) { |
| 2030 LIRItem base(x->base(), this); | |
| 2031 LIRItem idx(this); | |
| 2032 | |
| 2033 base.load_item(); | |
| 2034 if (x->has_index()) { | |
| 2035 idx.set_instruction(x->index()); | |
| 2036 idx.load_nonconstant(); | |
| 2037 } | |
| 2038 | |
| 2039 LIR_Opr reg = rlock_result(x, x->basic_type()); | |
| 2040 | |
| 2041 int log2_scale = 0; | |
| 2042 if (x->has_index()) { | |
| 2043 log2_scale = x->log2_scale(); | |
| 2044 } | |
| 2045 | |
| 2046 assert(!x->has_index() || idx.value() == x->index(), "should match"); | |
| 2047 | |
| 2048 LIR_Opr base_op = base.result(); | |
|
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2049 LIR_Opr index_op = idx.result(); |
| 0 | 2050 #ifndef _LP64 |
|
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2051 if (base_op->type() == T_LONG) { |
| 0 | 2052 base_op = new_register(T_INT); |
| 2053 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
|
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2054 } |
|
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2055 if (x->has_index()) { |
|
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2056 if (index_op->type() == T_LONG) { |
|
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2057 LIR_Opr long_index_op = index_op; |
|
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2058 if (index_op->is_constant()) { |
|
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2059 long_index_op = new_register(T_LONG); |
|
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2060 __ move(index_op, long_index_op); |
|
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2061 } |
|
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2062 index_op = new_register(T_INT); |
|
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2063 __ convert(Bytecodes::_l2i, long_index_op, index_op); |
|
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|
2064 } else { |
|
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2065 assert(x->index()->type()->tag() == intTag, "must be"); |
|
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|
2066 } |
| 0 | 2067 } |
|
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2068 // At this point base and index should be all ints. |
|
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2069 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
|
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2070 assert(!x->has_index() || index_op->type() == T_INT, "index should be an int"); |
|
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2071 #else |
|
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|
2072 if (x->has_index()) { |
|
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2073 if (index_op->type() == T_INT) { |
|
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2074 if (!index_op->is_constant()) { |
|
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2075 index_op = new_register(T_LONG); |
|
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2076 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
|
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2077 } |
|
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|
2078 } else { |
|
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|
2079 assert(index_op->type() == T_LONG, "must be"); |
|
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|
2080 if (index_op->is_constant()) { |
|
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|
2081 index_op = new_register(T_LONG); |
|
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|
2082 __ move(idx.result(), index_op); |
|
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|
2083 } |
|
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|
2084 } |
|
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|
2085 } |
|
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|
2086 // At this point base is a long non-constant |
|
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2087 // Index is a long register or a int constant. |
|
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2088 // We allow the constant to stay an int because that would allow us a more compact encoding by |
|
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|
2089 // embedding an immediate offset in the address expression. If we have a long constant, we have to |
|
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|
2090 // move it into a register first. |
|
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|
2091 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a long non-constant"); |
|
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2092 assert(!x->has_index() || (index_op->type() == T_INT && index_op->is_constant()) || |
|
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|
2093 (index_op->type() == T_LONG && !index_op->is_constant()), "unexpected index type"); |
| 0 | 2094 #endif |
| 2095 | |
| 2096 BasicType dst_type = x->basic_type(); | |
| 2097 | |
| 2098 LIR_Address* addr; | |
| 2099 if (index_op->is_constant()) { | |
| 2100 assert(log2_scale == 0, "must not have a scale"); | |
|
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|
2101 assert(index_op->type() == T_INT, "only int constants supported"); |
| 0 | 2102 addr = new LIR_Address(base_op, index_op->as_jint(), dst_type); |
| 2103 } else { | |
| 304 | 2104 #ifdef X86 |
| 0 | 2105 addr = new LIR_Address(base_op, index_op, LIR_Address::Scale(log2_scale), 0, dst_type); |
|
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|
2106 #elif defined(GENERATE_ADDRESS_IS_PREFERRED) |
|
1681
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|
2107 addr = generate_address(base_op, index_op, log2_scale, 0, dst_type); |
| 0 | 2108 #else |
| 2109 if (index_op->is_illegal() || log2_scale == 0) { | |
| 2110 addr = new LIR_Address(base_op, index_op, dst_type); | |
| 2111 } else { | |
| 1060 | 2112 LIR_Opr tmp = new_pointer_register(); |
| 0 | 2113 __ shift_left(index_op, log2_scale, tmp); |
| 2114 addr = new LIR_Address(base_op, tmp, dst_type); | |
| 2115 } | |
| 2116 #endif | |
| 2117 } | |
| 2118 | |
| 2119 if (x->may_be_unaligned() && (dst_type == T_LONG || dst_type == T_DOUBLE)) { | |
| 2120 __ unaligned_move(addr, reg); | |
| 2121 } else { | |
| 2002 | 2122 if (dst_type == T_OBJECT && x->is_wide()) { |
| 2123 __ move_wide(addr, reg); | |
| 2124 } else { | |
| 2125 __ move(addr, reg); | |
| 2126 } | |
| 0 | 2127 } |
| 2128 } | |
| 2129 | |
| 2130 | |
| 2131 void LIRGenerator::do_UnsafePutRaw(UnsafePutRaw* x) { | |
| 2132 int log2_scale = 0; | |
| 2133 BasicType type = x->basic_type(); | |
| 2134 | |
| 2135 if (x->has_index()) { | |
| 2136 log2_scale = x->log2_scale(); | |
| 2137 } | |
| 2138 | |
| 2139 LIRItem base(x->base(), this); | |
| 2140 LIRItem value(x->value(), this); | |
| 2141 LIRItem idx(this); | |
| 2142 | |
| 2143 base.load_item(); | |
| 2144 if (x->has_index()) { | |
| 2145 idx.set_instruction(x->index()); | |
| 2146 idx.load_item(); | |
| 2147 } | |
| 2148 | |
| 2149 if (type == T_BYTE || type == T_BOOLEAN) { | |
| 2150 value.load_byte_item(); | |
| 2151 } else { | |
| 2152 value.load_item(); | |
| 2153 } | |
| 2154 | |
| 2155 set_no_result(x); | |
| 2156 | |
| 2157 LIR_Opr base_op = base.result(); | |
|
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|
2158 LIR_Opr index_op = idx.result(); |
|
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|
2159 |
|
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|
2160 #ifdef GENERATE_ADDRESS_IS_PREFERRED |
|
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|
2161 LIR_Address* addr = generate_address(base_op, index_op, log2_scale, 0, x->basic_type()); |
|
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2162 #else |
| 0 | 2163 #ifndef _LP64 |
|
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2164 if (base_op->type() == T_LONG) { |
| 0 | 2165 base_op = new_register(T_INT); |
| 2166 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
|
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2167 } |
|
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|
2168 if (x->has_index()) { |
|
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|
2169 if (index_op->type() == T_LONG) { |
|
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|
2170 index_op = new_register(T_INT); |
|
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2171 __ convert(Bytecodes::_l2i, idx.result(), index_op); |
|
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|
2172 } |
| 0 | 2173 } |
|
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|
2174 // At this point base and index should be all ints and not constants |
|
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|
2175 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
|
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|
2176 assert(!x->has_index() || (index_op->type() == T_INT && !index_op->is_constant()), "index should be an non-constant int"); |
|
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|
2177 #else |
|
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|
2178 if (x->has_index()) { |
|
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|
2179 if (index_op->type() == T_INT) { |
|
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|
2180 index_op = new_register(T_LONG); |
|
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|
2181 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
|
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|
2182 } |
|
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|
2183 } |
|
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|
2184 // At this point base and index are long and non-constant |
|
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|
2185 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a non-constant long"); |
|
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|
2186 assert(!x->has_index() || (index_op->type() == T_LONG && !index_op->is_constant()), "index must be a non-constant long"); |
| 0 | 2187 #endif |
| 2188 | |
| 2189 if (log2_scale != 0) { | |
| 2190 // temporary fix (platform dependent code without shift on Intel would be better) | |
|
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|
2191 // TODO: ARM also allows embedded shift in the address |
| 23131 | 2192 LIR_Opr tmp = new_pointer_register(); |
| 2193 if (TwoOperandLIRForm) { | |
| 2194 __ move(index_op, tmp); | |
| 2195 index_op = tmp; | |
| 2196 } | |
| 2197 __ shift_left(index_op, log2_scale, tmp); | |
| 2198 if (!TwoOperandLIRForm) { | |
| 2199 index_op = tmp; | |
| 2200 } | |
| 0 | 2201 } |
| 2202 | |
| 2203 LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type()); | |
|
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|
2204 #endif // !GENERATE_ADDRESS_IS_PREFERRED |
| 0 | 2205 __ move(value.result(), addr); |
| 2206 } | |
| 2207 | |
| 2208 | |
| 2209 void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) { | |
| 2210 BasicType type = x->basic_type(); | |
| 2211 LIRItem src(x->object(), this); | |
| 2212 LIRItem off(x->offset(), this); | |
| 2213 | |
| 2214 off.load_item(); | |
| 2215 src.load_item(); | |
| 2216 | |
|
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|
2217 LIR_Opr value = rlock_result(x, x->basic_type()); |
|
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2218 |
|
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|
2219 get_Object_unsafe(value, src.result(), off.result(), type, x->is_volatile()); |
|
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|
2220 |
|
8001
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8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
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|
2221 #if INCLUDE_ALL_GCS |
|
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|
2222 // We might be reading the value of the referent field of a |
|
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|
2223 // Reference object in order to attach it back to the live |
|
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|
2224 // object graph. If G1 is enabled then we need to record |
|
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|
2225 // the value that is being returned in an SATB log buffer. |
|
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|
2226 // |
|
e1162778c1c8
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|
2227 // We need to generate code similar to the following... |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2228 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2229 // if (offset == java_lang_ref_Reference::referent_offset) { |
|
e1162778c1c8
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|
2230 // if (src != NULL) { |
|
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|
2231 // if (klass(src)->reference_type() != REF_NONE) { |
|
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|
2232 // pre_barrier(..., value, ...); |
|
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|
2233 // } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2234 // } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2235 // } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2236 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2237 if (UseG1GC && type == T_OBJECT) { |
|
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|
2238 bool gen_pre_barrier = true; // Assume we need to generate pre_barrier. |
|
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|
2239 bool gen_offset_check = true; // Assume we need to generate the offset guard. |
|
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|
2240 bool gen_source_check = true; // Assume we need to check the src object for null. |
|
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|
2241 bool gen_type_check = true; // Assume we need to check the reference_type. |
|
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|
2242 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2243 if (off.is_constant()) { |
|
3254
59766fd005ff
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johnc
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|
2244 jlong off_con = (off.type()->is_int() ? |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2245 (jlong) off.get_jint_constant() : |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2246 off.get_jlong_constant()); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2247 |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2248 |
|
59766fd005ff
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johnc
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|
2249 if (off_con != (jlong) java_lang_ref_Reference::referent_offset) { |
|
3249
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|
2250 // The constant offset is something other than referent_offset. |
|
e1162778c1c8
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|
2251 // We can skip generating/checking the remaining guards and |
|
e1162778c1c8
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johnc
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|
2252 // skip generation of the code stub. |
|
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|
2253 gen_pre_barrier = false; |
|
3249
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|
2254 } else { |
|
e1162778c1c8
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|
2255 // The constant offset is the same as referent_offset - |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2256 // we do not need to generate a runtime offset check. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2257 gen_offset_check = false; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2258 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2259 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2260 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2261 // We don't need to generate stub if the source object is an array |
|
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|
2262 if (gen_pre_barrier && src.type()->is_array()) { |
|
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|
2263 gen_pre_barrier = false; |
|
3249
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|
2264 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2265 |
|
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|
2266 if (gen_pre_barrier) { |
|
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johnc
parents:
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|
2267 // We still need to continue with the checks. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2268 if (src.is_constant()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2269 ciObject* src_con = src.get_jobject_constant(); |
|
10397
075ea888b039
8010724: [parfait] Null pointer dereference in hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
morris
parents:
10116
diff
changeset
|
2270 guarantee(src_con != NULL, "no source constant"); |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2271 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2272 if (src_con->is_null_object()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2273 // The constant src object is null - We can skip |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2274 // generating the code stub. |
|
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|
2275 gen_pre_barrier = false; |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2276 } else { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2277 // Non-null constant source object. We still have to generate |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2278 // the slow stub - but we don't need to generate the runtime |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2279 // null object check. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2280 gen_source_check = false; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
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|
2281 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2282 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2283 } |
|
6615
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2284 if (gen_pre_barrier && !PatchALot) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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6266
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|
2285 // Can the klass of object be statically determined to be |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2286 // a sub-class of Reference? |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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6266
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|
2287 ciType* type = src.value()->declared_type(); |
|
09aad8452938
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|
2288 if ((type != NULL) && type->is_loaded()) { |
|
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2289 if (type->is_subtype_of(compilation()->env()->Reference_klass())) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2290 gen_type_check = false; |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2291 } else if (type->is_klass() && |
|
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2292 !compilation()->env()->Object_klass()->is_subtype_of(type->as_klass())) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2293 // Not Reference and not Object klass. |
|
09aad8452938
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|
2294 gen_pre_barrier = false; |
|
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2295 } |
|
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2296 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2297 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2298 |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2299 if (gen_pre_barrier) { |
|
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|
2300 LabelObj* Lcont = new LabelObj(); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2301 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff
changeset
|
2302 // We can have generate one runtime check here. Let's start with |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2303 // the offset check. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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2357
diff
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|
2304 if (gen_offset_check) { |
|
6615
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|
2305 // if (offset != referent_offset) -> continue |
|
3254
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2306 // If offset is an int then we can do the comparison with the |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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diff
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|
2307 // referent_offset constant; otherwise we need to move |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2308 // referent_offset into a temporary register and generate |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2309 // a reg-reg compare. |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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diff
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|
2310 |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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diff
changeset
|
2311 LIR_Opr referent_off; |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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3249
diff
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|
2312 |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2313 if (off.type()->is_int()) { |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2314 referent_off = LIR_OprFact::intConst(java_lang_ref_Reference::referent_offset); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2315 } else { |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2316 assert(off.type()->is_long(), "what else?"); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2317 referent_off = new_register(T_LONG); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2318 __ move(LIR_OprFact::longConst(java_lang_ref_Reference::referent_offset), referent_off); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
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|
2319 } |
|
6615
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|
2320 __ cmp(lir_cond_notEqual, off.result(), referent_off); |
|
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|
2321 __ branch(lir_cond_notEqual, as_BasicType(off.type()), Lcont->label()); |
|
09aad8452938
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|
2322 } |
|
09aad8452938
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|
2323 if (gen_source_check) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2324 // 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
|
2325 // if (source == null) -> continue |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2326 __ 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
|
2327 __ 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
|
2328 } |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2329 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
|
2330 if (gen_type_check) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2331 // 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
|
2332 // if (src->_klass->_reference_type == REF_NONE) -> continue |
|
12000
8d77d02828d9
8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
twisti
parents:
11080
diff
changeset
|
2333 __ 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
|
2334 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
|
2335 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
|
2336 __ 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
|
2337 __ 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
|
2338 __ 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
|
2339 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2340 { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2341 // 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
|
2342 // 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
|
2343 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
|
2344 value /* pre_val */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2345 false /* do_load */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2346 false /* patch */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2347 NULL /* info */); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2348 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2349 __ branch_destination(Lcont->label()); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2350 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2351 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
changeset
|
2352 #endif // INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2353 |
| 0 | 2354 if (x->is_volatile() && os::is_MP()) __ membar_acquire(); |
| 2355 } | |
| 2356 | |
| 2357 | |
| 2358 void LIRGenerator::do_UnsafePutObject(UnsafePutObject* x) { | |
| 2359 BasicType type = x->basic_type(); | |
| 2360 LIRItem src(x->object(), this); | |
| 2361 LIRItem off(x->offset(), this); | |
| 2362 LIRItem data(x->value(), this); | |
| 2363 | |
| 2364 src.load_item(); | |
| 2365 if (type == T_BOOLEAN || type == T_BYTE) { | |
| 2366 data.load_byte_item(); | |
| 2367 } else { | |
| 2368 data.load_item(); | |
| 2369 } | |
| 2370 off.load_item(); | |
| 2371 | |
| 2372 set_no_result(x); | |
| 2373 | |
| 2374 if (x->is_volatile() && os::is_MP()) __ membar_release(); | |
| 2375 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
|
2376 if (x->is_volatile() && os::is_MP()) __ membar(); |
| 0 | 2377 } |
| 2378 | |
| 2379 | |
| 2380 void LIRGenerator::do_UnsafePrefetch(UnsafePrefetch* x, bool is_store) { | |
| 2381 LIRItem src(x->object(), this); | |
| 2382 LIRItem off(x->offset(), this); | |
| 2383 | |
| 2384 src.load_item(); | |
| 2385 if (off.is_constant() && can_inline_as_constant(x->offset())) { | |
| 2386 // let it be a constant | |
| 2387 off.dont_load_item(); | |
| 2388 } else { | |
| 2389 off.load_item(); | |
| 2390 } | |
| 2391 | |
| 2392 set_no_result(x); | |
| 2393 | |
| 2394 LIR_Address* addr = generate_address(src.result(), off.result(), 0, 0, T_BYTE); | |
| 2395 __ prefetch(addr, is_store); | |
| 2396 } | |
| 2397 | |
| 2398 | |
| 2399 void LIRGenerator::do_UnsafePrefetchRead(UnsafePrefetchRead* x) { | |
| 2400 do_UnsafePrefetch(x, false); | |
| 2401 } | |
| 2402 | |
| 2403 | |
| 2404 void LIRGenerator::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) { | |
| 2405 do_UnsafePrefetch(x, true); | |
| 2406 } | |
| 2407 | |
| 2408 | |
| 2409 void LIRGenerator::do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux) { | |
| 2410 int lng = x->length(); | |
| 2411 | |
| 2412 for (int i = 0; i < lng; i++) { | |
| 2413 SwitchRange* one_range = x->at(i); | |
| 2414 int low_key = one_range->low_key(); | |
| 2415 int high_key = one_range->high_key(); | |
| 2416 BlockBegin* dest = one_range->sux(); | |
| 2417 if (low_key == high_key) { | |
| 2418 __ cmp(lir_cond_equal, value, low_key); | |
| 2419 __ branch(lir_cond_equal, T_INT, dest); | |
| 2420 } else if (high_key - low_key == 1) { | |
| 2421 __ cmp(lir_cond_equal, value, low_key); | |
| 2422 __ branch(lir_cond_equal, T_INT, dest); | |
| 2423 __ cmp(lir_cond_equal, value, high_key); | |
| 2424 __ branch(lir_cond_equal, T_INT, dest); | |
| 2425 } else { | |
| 2426 LabelObj* L = new LabelObj(); | |
| 2427 __ cmp(lir_cond_less, value, low_key); | |
| 4816 | 2428 __ branch(lir_cond_less, T_INT, L->label()); |
| 0 | 2429 __ cmp(lir_cond_lessEqual, value, high_key); |
| 2430 __ branch(lir_cond_lessEqual, T_INT, dest); | |
| 2431 __ branch_destination(L->label()); | |
| 2432 } | |
| 2433 } | |
| 2434 __ jump(default_sux); | |
| 2435 } | |
| 2436 | |
| 2437 | |
| 2438 SwitchRangeArray* LIRGenerator::create_lookup_ranges(TableSwitch* x) { | |
| 2439 SwitchRangeList* res = new SwitchRangeList(); | |
| 2440 int len = x->length(); | |
| 2441 if (len > 0) { | |
| 2442 BlockBegin* sux = x->sux_at(0); | |
| 2443 int key = x->lo_key(); | |
| 2444 BlockBegin* default_sux = x->default_sux(); | |
| 2445 SwitchRange* range = new SwitchRange(key, sux); | |
| 2446 for (int i = 0; i < len; i++, key++) { | |
| 2447 BlockBegin* new_sux = x->sux_at(i); | |
| 2448 if (sux == new_sux) { | |
| 2449 // still in same range | |
| 2450 range->set_high_key(key); | |
| 2451 } else { | |
| 2452 // skip tests which explicitly dispatch to the default | |
| 2453 if (sux != default_sux) { | |
| 2454 res->append(range); | |
| 2455 } | |
| 2456 range = new SwitchRange(key, new_sux); | |
| 2457 } | |
| 2458 sux = new_sux; | |
| 2459 } | |
| 2460 if (res->length() == 0 || res->last() != range) res->append(range); | |
| 2461 } | |
| 2462 return res; | |
| 2463 } | |
| 2464 | |
| 2465 | |
| 2466 // we expect the keys to be sorted by increasing value | |
| 2467 SwitchRangeArray* LIRGenerator::create_lookup_ranges(LookupSwitch* x) { | |
| 2468 SwitchRangeList* res = new SwitchRangeList(); | |
| 2469 int len = x->length(); | |
| 2470 if (len > 0) { | |
| 2471 BlockBegin* default_sux = x->default_sux(); | |
| 2472 int key = x->key_at(0); | |
| 2473 BlockBegin* sux = x->sux_at(0); | |
| 2474 SwitchRange* range = new SwitchRange(key, sux); | |
| 2475 for (int i = 1; i < len; i++) { | |
| 2476 int new_key = x->key_at(i); | |
| 2477 BlockBegin* new_sux = x->sux_at(i); | |
| 2478 if (key+1 == new_key && sux == new_sux) { | |
| 2479 // still in same range | |
| 2480 range->set_high_key(new_key); | |
| 2481 } else { | |
| 2482 // skip tests which explicitly dispatch to the default | |
| 2483 if (range->sux() != default_sux) { | |
| 2484 res->append(range); | |
| 2485 } | |
| 2486 range = new SwitchRange(new_key, new_sux); | |
| 2487 } | |
| 2488 key = new_key; | |
| 2489 sux = new_sux; | |
| 2490 } | |
| 2491 if (res->length() == 0 || res->last() != range) res->append(range); | |
| 2492 } | |
| 2493 return res; | |
| 2494 } | |
| 2495 | |
| 2496 | |
| 2497 void LIRGenerator::do_TableSwitch(TableSwitch* x) { | |
| 2498 LIRItem tag(x->tag(), this); | |
| 2499 tag.load_item(); | |
| 2500 set_no_result(x); | |
| 2501 | |
| 2502 if (x->is_safepoint()) { | |
| 2503 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
| 2504 } | |
| 2505 | |
| 2506 // move values into phi locations | |
| 2507 move_to_phi(x->state()); | |
| 2508 | |
| 2509 int lo_key = x->lo_key(); | |
| 2510 int hi_key = x->hi_key(); | |
| 2511 int len = x->length(); | |
| 2512 LIR_Opr value = tag.result(); | |
| 2513 if (UseTableRanges) { | |
| 2514 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
| 2515 } else { | |
| 2516 for (int i = 0; i < len; i++) { | |
| 2517 __ cmp(lir_cond_equal, value, i + lo_key); | |
| 2518 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
| 2519 } | |
| 2520 __ jump(x->default_sux()); | |
| 2521 } | |
| 2522 } | |
| 2523 | |
| 2524 | |
| 2525 void LIRGenerator::do_LookupSwitch(LookupSwitch* x) { | |
| 2526 LIRItem tag(x->tag(), this); | |
| 2527 tag.load_item(); | |
| 2528 set_no_result(x); | |
| 2529 | |
| 2530 if (x->is_safepoint()) { | |
| 2531 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
| 2532 } | |
| 2533 | |
| 2534 // move values into phi locations | |
| 2535 move_to_phi(x->state()); | |
| 2536 | |
| 2537 LIR_Opr value = tag.result(); | |
| 2538 if (UseTableRanges) { | |
| 2539 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
| 2540 } else { | |
| 2541 int len = x->length(); | |
| 2542 for (int i = 0; i < len; i++) { | |
| 2543 __ cmp(lir_cond_equal, value, x->key_at(i)); | |
| 2544 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
| 2545 } | |
| 2546 __ jump(x->default_sux()); | |
| 2547 } | |
| 2548 } | |
| 2549 | |
| 2550 | |
| 2551 void LIRGenerator::do_Goto(Goto* x) { | |
| 2552 set_no_result(x); | |
| 2553 | |
| 2554 if (block()->next()->as_OsrEntry()) { | |
| 2555 // need to free up storage used for OSR entry point | |
| 2556 LIR_Opr osrBuffer = block()->next()->operand(); | |
| 2557 BasicTypeList signature; | |
|
22837
134cdf5e0b8a
8037140: C1: Incorrect argument type used for SharedRuntime::OSR_migration_end in LIRGenerator::do_Goto
iveresov
parents:
20519
diff
changeset
|
2558 signature.append(NOT_LP64(T_INT) LP64_ONLY(T_LONG)); // pass a pointer to osrBuffer |
| 0 | 2559 CallingConvention* cc = frame_map()->c_calling_convention(&signature); |
| 2560 __ move(osrBuffer, cc->args()->at(0)); | |
| 2561 __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_end), | |
| 2562 getThreadTemp(), LIR_OprFact::illegalOpr, cc->args()); | |
| 2563 } | |
| 2564 | |
| 2565 if (x->is_safepoint()) { | |
| 2566 ValueStack* state = x->state_before() ? x->state_before() : x->state(); | |
| 2567 | |
| 2568 // increment backedge counter if needed | |
| 1783 | 2569 CodeEmitInfo* info = state_for(x, state); |
|
3997
940513efe83a
7097679: Tiered: events with bad bci to Gotos reduced from Ifs
iveresov
parents:
3964
diff
changeset
|
2570 increment_backedge_counter(info, x->profiled_bci()); |
| 0 | 2571 CodeEmitInfo* safepoint_info = state_for(x, state); |
| 2572 __ safepoint(safepoint_poll_register(), safepoint_info); | |
| 2573 } | |
| 2574 | |
| 1783 | 2575 // Gotos can be folded Ifs, handle this case. |
| 2576 if (x->should_profile()) { | |
| 2577 ciMethod* method = x->profiled_method(); | |
| 2578 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
|
2579 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
|
2580 assert(md != NULL, "Sanity"); |
| 1783 | 2581 ciProfileData* data = md->bci_to_data(x->profiled_bci()); |
| 2582 assert(data != NULL, "must have profiling data"); | |
| 2583 int offset; | |
| 2584 if (x->direction() == Goto::taken) { | |
| 2585 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 2586 offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
| 2587 } else if (x->direction() == Goto::not_taken) { | |
| 2588 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 2589 offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
| 2590 } else { | |
| 2591 assert(data->is_JumpData(), "need JumpData for branches"); | |
| 2592 offset = md->byte_offset_of_slot(data, JumpData::taken_offset()); | |
| 2593 } | |
|
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2594 LIR_Opr md_reg = new_register(T_METADATA); |
|
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2595 __ metadata2reg(md->constant_encoding(), md_reg); |
| 1783 | 2596 |
| 2597 increment_counter(new LIR_Address(md_reg, offset, | |
| 2598 NOT_LP64(T_INT) LP64_ONLY(T_LONG)), DataLayout::counter_increment); | |
| 2599 } | |
| 2600 | |
| 0 | 2601 // emit phi-instruction move after safepoint since this simplifies |
| 2602 // describing the state as the safepoint. | |
| 2603 move_to_phi(x->state()); | |
| 2604 | |
| 2605 __ jump(x->default_sux()); | |
| 2606 } | |
| 2607 | |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2608 /** |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2609 * 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
|
2610 * |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2611 * @param md MDO the code will update at runtime |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2612 * @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
|
2613 * @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
|
2614 * @param profiled_k current profile |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2615 * @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
|
2616 * @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
|
2617 * 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
|
2618 * @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
|
2619 * @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
|
2620 * @param callee_signature_k signature of callee for obj |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2621 * 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
|
2622 * @return the only klass we know will ever be seen at this profile point |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2623 */ |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2624 ciKlass* LIRGenerator::profile_type(ciMethodData* md, int md_base_offset, int md_offset, intptr_t profiled_k, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2625 Value obj, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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changeset
|
2626 ciKlass* callee_signature_k) { |
|
12875
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parents:
12868
diff
changeset
|
2627 ciKlass* result = NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2628 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
changeset
|
2629 bool do_update = !TypeEntries::is_type_unknown(profiled_k); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2630 // 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
|
2631 // 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
|
2632 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2633 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2634 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2635 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2636 ciKlass* exact_klass = NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2637 Compilation* comp = Compilation::current(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2638 if (do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2639 // try to find exact type, using CHA if possible, so that loading |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2640 // 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
|
2641 ciType* type = obj->exact_type(); |
|
12875
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12868
diff
changeset
|
2642 if (type == NULL) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2643 type = obj->declared_type(); |
|
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12868
diff
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|
2644 type = comp->cha_exact_type(type); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2645 } |
|
d13d7aba8c12
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diff
changeset
|
2646 assert(type == NULL || type->is_klass(), "type should be class"); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
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|
2647 exact_klass = (type != NULL && type->is_loaded()) ? (ciKlass*)type : NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2648 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2649 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2650 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2651 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2652 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2653 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2654 } |
|
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
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12868
diff
changeset
|
2656 ciKlass* exact_signature_k = NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2657 if (do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2658 // Is the type from the signature exact (the only one possible)? |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2659 exact_signature_k = signature_at_call_k->exact_klass(); |
|
12875
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12868
diff
changeset
|
2660 if (exact_signature_k == NULL) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2661 exact_signature_k = comp->cha_exact_type(signature_at_call_k); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2662 } else { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2663 result = exact_signature_k; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
12868
diff
changeset
|
2664 // Known statically. No need to emit any code: prevent |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2665 // LIR_Assembler::emit_profile_type() from emitting useless code |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2666 profiled_k = ciTypeEntries::with_status(result, profiled_k); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2667 } |
|
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2668 // exact_klass and exact_signature_k can be both non NULL but |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2669 // different if exact_klass is loaded after the ciObject for |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2670 // exact_signature_k is created. |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2671 if (exact_klass == NULL && exact_signature_k != NULL && exact_klass != exact_signature_k) { |
|
12875
d13d7aba8c12
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roland
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12868
diff
changeset
|
2672 // 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
|
2673 // the compiler has |
|
d13d7aba8c12
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diff
changeset
|
2674 exact_klass = exact_signature_k; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2675 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2676 if (callee_signature_k != NULL && |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2677 callee_signature_k != signature_at_call_k) { |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2678 ciKlass* improved_klass = callee_signature_k->exact_klass(); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2679 if (improved_klass == NULL) { |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2680 improved_klass = comp->cha_exact_type(callee_signature_k); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2681 } |
|
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2682 if (exact_klass == NULL && improved_klass != NULL && exact_klass != improved_klass) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2683 exact_klass = exact_signature_k; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2684 } |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2685 } |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2686 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
|
2687 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2688 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2689 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2690 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2691 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2692 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2693 if (mdp == LIR_OprFact::illegalOpr) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2694 mdp = new_register(T_METADATA); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2695 __ metadata2reg(md->constant_encoding(), mdp); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2696 if (md_base_offset != 0) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2697 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
|
2698 mdp = new_pointer_register(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2699 __ leal(LIR_OprFact::address(base_type_address), mdp); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2700 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2701 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2702 LIRItem value(obj, this); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2703 value.load_item(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2704 __ profile_type(new LIR_Address(mdp, md_offset, T_METADATA), |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2705 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
|
2706 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2707 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2708 |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2709 // profile parameters on entry to the root of the compilation |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2710 void LIRGenerator::profile_parameters(Base* x) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2711 if (compilation()->profile_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2712 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2713 ciMethodData* md = scope()->method()->method_data_or_null(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2714 assert(md != NULL, "Sanity"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2715 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2716 if (md->parameters_type_data() != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2717 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2718 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2719 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2720 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
|
2721 LIR_Opr src = args->at(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2722 assert(!src->is_illegal(), "check"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2723 BasicType t = src->type(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2724 if (t == T_OBJECT || t == T_ARRAY) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2725 intptr_t profiled_k = parameters->type(j); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2726 Local* local = x->state()->local_at(java_index)->as_Local(); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
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diff
changeset
|
2727 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:
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diff
changeset
|
2728 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
|
2729 profiled_k, local, mdp, false, local->declared_type()->as_klass(), NULL); |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2730 // 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
|
2731 if (exact != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2732 md->set_parameter_type(j, exact); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2733 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2734 j++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2735 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2736 java_index += type2size[t]; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2737 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2738 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2739 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2740 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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diff
changeset
|
2741 |
| 0 | 2742 void LIRGenerator::do_Base(Base* x) { |
| 2743 __ std_entry(LIR_OprFact::illegalOpr); | |
| 2744 // Emit moves from physical registers / stack slots to virtual registers | |
| 2745 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); | |
| 2746 IRScope* irScope = compilation()->hir()->top_scope(); | |
| 2747 int java_index = 0; | |
| 2748 for (int i = 0; i < args->length(); i++) { | |
| 2749 LIR_Opr src = args->at(i); | |
| 2750 assert(!src->is_illegal(), "check"); | |
| 2751 BasicType t = src->type(); | |
| 2752 | |
| 2753 // Types which are smaller than int are passed as int, so | |
| 2754 // correct the type which passed. | |
| 2755 switch (t) { | |
| 2756 case T_BYTE: | |
| 2757 case T_BOOLEAN: | |
| 2758 case T_SHORT: | |
| 2759 case T_CHAR: | |
| 2760 t = T_INT; | |
| 2761 break; | |
| 2762 } | |
| 2763 | |
| 2764 LIR_Opr dest = new_register(t); | |
| 2765 __ move(src, dest); | |
| 2766 | |
| 2767 // Assign new location to Local instruction for this local | |
| 2768 Local* local = x->state()->local_at(java_index)->as_Local(); | |
| 2769 assert(local != NULL, "Locals for incoming arguments must have been created"); | |
|
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|
2770 #ifndef __SOFTFP__ |
|
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diff
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|
2771 // The java calling convention passes double as long and float as int. |
| 0 | 2772 assert(as_ValueType(t)->tag() == local->type()->tag(), "check"); |
|
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diff
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|
2773 #endif // __SOFTFP__ |
| 0 | 2774 local->set_operand(dest); |
| 2775 _instruction_for_operand.at_put_grow(dest->vreg_number(), local, NULL); | |
| 2776 java_index += type2size[t]; | |
| 2777 } | |
| 2778 | |
|
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
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579
diff
changeset
|
2779 if (compilation()->env()->dtrace_method_probes()) { |
| 0 | 2780 BasicTypeList signature; |
| 2002 | 2781 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
|
12969
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8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
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diff
changeset
|
2782 signature.append(T_METADATA); // Method* |
| 0 | 2783 LIR_OprList* args = new LIR_OprList(); |
| 2784 args->append(getThreadPointer()); | |
|
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8a02ca5e5576
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diff
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|
2785 LIR_Opr meth = new_register(T_METADATA); |
|
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
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6731
diff
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|
2786 __ metadata2reg(method()->constant_encoding(), meth); |
| 0 | 2787 args->append(meth); |
| 2788 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), voidType, NULL); | |
| 2789 } | |
| 2790 | |
| 2791 if (method()->is_synchronized()) { | |
| 2792 LIR_Opr obj; | |
| 2793 if (method()->is_static()) { | |
| 2794 obj = new_register(T_OBJECT); | |
|
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6863023: need non-perm oops in code cache for JSR 292
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819
diff
changeset
|
2795 __ oop2reg(method()->holder()->java_mirror()->constant_encoding(), obj); |
| 0 | 2796 } else { |
| 2797 Local* receiver = x->state()->local_at(0)->as_Local(); | |
| 2798 assert(receiver != NULL, "must already exist"); | |
| 2799 obj = receiver->operand(); | |
| 2800 } | |
| 2801 assert(obj->is_valid(), "must be valid"); | |
| 2802 | |
| 2803 if (method()->is_synchronized() && GenerateSynchronizationCode) { | |
| 2804 LIR_Opr lock = new_register(T_INT); | |
| 2805 __ load_stack_address_monitor(0, lock); | |
| 2806 | |
| 8860 | 2807 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, x->check_flag(Instruction::DeoptimizeOnException)); |
| 0 | 2808 CodeStub* slow_path = new MonitorEnterStub(obj, lock, info); |
| 2809 | |
| 2810 // receiver is guaranteed non-NULL so don't need CodeEmitInfo | |
| 2811 __ lock_object(syncTempOpr(), obj, lock, new_register(T_OBJECT), slow_path, NULL); | |
| 2812 } | |
| 2813 } | |
| 2814 | |
| 2815 // increment invocation counters if needed | |
| 1783 | 2816 if (!method()->is_accessor()) { // Accessors do not have MDOs, so no counting. |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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12955
diff
changeset
|
2817 profile_parameters(x); |
| 8860 | 2818 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, false); |
| 1783 | 2819 increment_invocation_counter(info); |
| 2820 } | |
| 0 | 2821 |
| 2822 // all blocks with a successor must end with an unconditional jump | |
| 2823 // to the successor even if they are consecutive | |
| 2824 __ jump(x->default_sux()); | |
| 2825 } | |
| 2826 | |
| 2827 | |
| 2828 void LIRGenerator::do_OsrEntry(OsrEntry* x) { | |
| 2829 // construct our frame and model the production of incoming pointer | |
| 2830 // to the OSR buffer. | |
| 2831 __ osr_entry(LIR_Assembler::osrBufferPointer()); | |
| 2832 LIR_Opr result = rlock_result(x); | |
| 2833 __ move(LIR_Assembler::osrBufferPointer(), result); | |
| 2834 } | |
| 2835 | |
| 2836 | |
| 2837 void LIRGenerator::invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list) { | |
|
6616
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
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6615
diff
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|
2838 assert(args->length() == arg_list->length(), |
|
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
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6615
diff
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|
2839 err_msg_res("args=%d, arg_list=%d", 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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6615
diff
changeset
|
2840 for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) { |
| 0 | 2841 LIRItem* param = args->at(i); |
| 2842 LIR_Opr loc = arg_list->at(i); | |
| 2843 if (loc->is_register()) { | |
| 2844 param->load_item_force(loc); | |
| 2845 } else { | |
| 2846 LIR_Address* addr = loc->as_address_ptr(); | |
| 2847 param->load_for_store(addr->type()); | |
| 2002 | 2848 if (addr->type() == T_OBJECT) { |
| 2849 __ move_wide(param->result(), addr); | |
| 2850 } else | |
| 2851 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 2852 __ unaligned_move(param->result(), addr); | |
| 2853 } else { | |
| 2854 __ move(param->result(), addr); | |
| 2855 } | |
| 0 | 2856 } |
| 2857 } | |
| 2858 | |
| 2859 if (x->has_receiver()) { | |
| 2860 LIRItem* receiver = args->at(0); | |
| 2861 LIR_Opr loc = arg_list->at(0); | |
| 2862 if (loc->is_register()) { | |
| 2863 receiver->load_item_force(loc); | |
| 2864 } else { | |
| 2865 assert(loc->is_address(), "just checking"); | |
| 2866 receiver->load_for_store(T_OBJECT); | |
| 2002 | 2867 __ move_wide(receiver->result(), loc->as_address_ptr()); |
| 0 | 2868 } |
| 2869 } | |
| 2870 } | |
| 2871 | |
| 2872 | |
| 2873 // Visits all arguments, returns appropriate items without loading them | |
| 2874 LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) { | |
| 2875 LIRItemList* argument_items = new LIRItemList(); | |
| 2876 if (x->has_receiver()) { | |
| 2877 LIRItem* receiver = new LIRItem(x->receiver(), this); | |
| 2878 argument_items->append(receiver); | |
| 2879 } | |
| 2880 for (int i = 0; i < x->number_of_arguments(); i++) { | |
| 2881 LIRItem* param = new LIRItem(x->argument_at(i), this); | |
| 2882 argument_items->append(param); | |
| 2883 } | |
| 2884 return argument_items; | |
| 2885 } | |
| 2886 | |
| 2887 | |
| 2888 // The invoke with receiver has following phases: | |
| 2889 // a) traverse and load/lock receiver; | |
| 2890 // b) traverse all arguments -> item-array (invoke_visit_argument) | |
| 2891 // c) push receiver on stack | |
| 2892 // d) load each of the items and push on stack | |
| 2893 // e) unlock receiver | |
| 2894 // f) move receiver into receiver-register %o0 | |
| 2895 // g) lock result registers and emit call operation | |
| 2896 // | |
| 2897 // Before issuing a call, we must spill-save all values on stack | |
|
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diff
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|
2898 // that are in caller-save register. "spill-save" moves those registers |
| 0 | 2899 // either in a free callee-save register or spills them if no free |
| 2900 // callee save register is available. | |
| 2901 // | |
| 2902 // The problem is where to invoke spill-save. | |
| 2903 // - if invoked between e) and f), we may lock callee save | |
| 2904 // register in "spill-save" that destroys the receiver register | |
| 2905 // before f) is executed | |
|
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2906 // - if we rearrange f) to be earlier (by loading %o0) it |
| 0 | 2907 // may destroy a value on the stack that is currently in %o0 |
| 2908 // and is waiting to be spilled | |
| 2909 // - if we keep the receiver locked while doing spill-save, | |
| 2910 // we cannot spill it as it is spill-locked | |
| 2911 // | |
| 2912 void LIRGenerator::do_Invoke(Invoke* x) { | |
| 2913 CallingConvention* cc = frame_map()->java_calling_convention(x->signature(), true); | |
| 2914 | |
| 2915 LIR_OprList* arg_list = cc->args(); | |
| 2916 LIRItemList* args = invoke_visit_arguments(x); | |
| 2917 LIR_Opr receiver = LIR_OprFact::illegalOpr; | |
| 2918 | |
| 2919 // setup result register | |
| 2920 LIR_Opr result_register = LIR_OprFact::illegalOpr; | |
| 2921 if (x->type() != voidType) { | |
| 2922 result_register = result_register_for(x->type()); | |
| 2923 } | |
| 2924 | |
| 2925 CodeEmitInfo* info = state_for(x, x->state()); | |
| 2926 | |
| 2927 invoke_load_arguments(x, args, arg_list); | |
| 2928 | |
| 2929 if (x->has_receiver()) { | |
| 2930 args->at(0)->load_item_force(LIR_Assembler::receiverOpr()); | |
| 2931 receiver = args->at(0)->result(); | |
| 2932 } | |
| 2933 | |
| 2934 // emit invoke code | |
| 2935 bool optimized = x->target_is_loaded() && x->target_is_final(); | |
| 2936 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | |
| 2937 | |
| 1564 | 2938 // JSR 292 |
|
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2939 // Preserve the SP over MethodHandle call sites, if needed. |
| 1564 | 2940 ciMethod* target = x->target(); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6145
diff
changeset
|
2941 bool is_method_handle_invoke = (// %%% FIXME: Are both of these relevant? |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2942 target->is_method_handle_intrinsic() || |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2943 target->is_compiled_lambda_form()); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2944 if (is_method_handle_invoke) { |
| 1564 | 2945 info->set_is_method_handle_invoke(true); |
|
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2946 if(FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { |
|
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2947 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); |
|
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2948 } |
| 1564 | 2949 } |
| 2950 | |
| 0 | 2951 switch (x->code()) { |
| 2952 case Bytecodes::_invokestatic: | |
| 1564 | 2953 __ call_static(target, result_register, |
| 0 | 2954 SharedRuntime::get_resolve_static_call_stub(), |
| 2955 arg_list, info); | |
| 2956 break; | |
| 2957 case Bytecodes::_invokespecial: | |
| 2958 case Bytecodes::_invokevirtual: | |
| 2959 case Bytecodes::_invokeinterface: | |
| 2960 // for final target we still produce an inline cache, in order | |
| 2961 // to be able to call mixed mode | |
| 2962 if (x->code() == Bytecodes::_invokespecial || optimized) { | |
| 1564 | 2963 __ call_opt_virtual(target, receiver, result_register, |
| 0 | 2964 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
| 2965 arg_list, info); | |
| 2966 } else if (x->vtable_index() < 0) { | |
| 1564 | 2967 __ call_icvirtual(target, receiver, result_register, |
| 0 | 2968 SharedRuntime::get_resolve_virtual_call_stub(), |
| 2969 arg_list, info); | |
| 2970 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2971 int entry_offset = InstanceKlass::vtable_start_offset() + x->vtable_index() * vtableEntry::size(); |
| 0 | 2972 int vtable_offset = entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); |
| 1564 | 2973 __ call_virtual(target, receiver, result_register, vtable_offset, arg_list, info); |
| 0 | 2974 } |
| 2975 break; | |
| 1295 | 2976 case Bytecodes::_invokedynamic: { |
| 1564 | 2977 __ call_dynamic(target, receiver, result_register, |
|
6616
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
parents:
6615
diff
changeset
|
2978 SharedRuntime::get_resolve_static_call_stub(), |
| 1295 | 2979 arg_list, info); |
| 2980 break; | |
| 2981 } | |
| 0 | 2982 default: |
|
6145
e2fe93124108
7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
twisti
parents:
6143
diff
changeset
|
2983 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
| 0 | 2984 break; |
| 2985 } | |
| 2986 | |
| 1564 | 2987 // JSR 292 |
|
23050
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2988 // Restore the SP after MethodHandle call sites, if needed. |
|
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2989 if (is_method_handle_invoke |
|
e8260b6328fb
8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
zmajo
parents:
22851
diff
changeset
|
2990 && FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { |
| 1564 | 2991 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
| 2992 } | |
| 2993 | |
| 0 | 2994 if (x->type()->is_float() || x->type()->is_double()) { |
| 2995 // Force rounding of results from non-strictfp when in strictfp | |
| 2996 // scope (or when we don't know the strictness of the callee, to | |
| 2997 // be safe.) | |
| 2998 if (method()->is_strict()) { | |
| 2999 if (!x->target_is_loaded() || !x->target_is_strictfp()) { | |
| 3000 result_register = round_item(result_register); | |
| 3001 } | |
| 3002 } | |
| 3003 } | |
| 3004 | |
| 3005 if (result_register->is_valid()) { | |
| 3006 LIR_Opr result = rlock_result(x); | |
| 3007 __ move(result_register, result); | |
| 3008 } | |
| 3009 } | |
| 3010 | |
| 3011 | |
| 3012 void LIRGenerator::do_FPIntrinsics(Intrinsic* x) { | |
| 3013 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 3014 LIRItem value (x->argument_at(0), this); | |
| 3015 LIR_Opr reg = rlock_result(x); | |
| 3016 value.load_item(); | |
| 3017 LIR_Opr tmp = force_to_spill(value.result(), as_BasicType(x->type())); | |
| 3018 __ move(tmp, reg); | |
| 3019 } | |
| 3020 | |
| 3021 | |
| 3022 | |
| 3023 // Code for : x->x() {x->cond()} x->y() ? x->tval() : x->fval() | |
| 3024 void LIRGenerator::do_IfOp(IfOp* x) { | |
| 3025 #ifdef ASSERT | |
| 3026 { | |
| 3027 ValueTag xtag = x->x()->type()->tag(); | |
| 3028 ValueTag ttag = x->tval()->type()->tag(); | |
| 3029 assert(xtag == intTag || xtag == objectTag, "cannot handle others"); | |
| 3030 assert(ttag == addressTag || ttag == intTag || ttag == objectTag || ttag == longTag, "cannot handle others"); | |
| 3031 assert(ttag == x->fval()->type()->tag(), "cannot handle others"); | |
| 3032 } | |
| 3033 #endif | |
| 3034 | |
| 3035 LIRItem left(x->x(), this); | |
| 3036 LIRItem right(x->y(), this); | |
| 3037 left.load_item(); | |
| 3038 if (can_inline_as_constant(right.value())) { | |
| 3039 right.dont_load_item(); | |
| 3040 } else { | |
| 3041 right.load_item(); | |
| 3042 } | |
| 3043 | |
| 3044 LIRItem t_val(x->tval(), this); | |
| 3045 LIRItem f_val(x->fval(), this); | |
| 3046 t_val.dont_load_item(); | |
| 3047 f_val.dont_load_item(); | |
| 3048 LIR_Opr reg = rlock_result(x); | |
| 3049 | |
| 3050 __ cmp(lir_cond(x->cond()), left.result(), right.result()); | |
|
2089
037c727f35fb
7009231: C1: Incorrect CAS code for longs on SPARC 32bit
iveresov
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2007
diff
changeset
|
3051 __ cmove(lir_cond(x->cond()), t_val.result(), f_val.result(), reg, as_BasicType(x->x()->type())); |
| 0 | 3052 } |
| 3053 | |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
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|
3054 void LIRGenerator::do_RuntimeCall(address routine, int expected_arguments, Intrinsic* x) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3055 assert(x->number_of_arguments() == expected_arguments, "wrong type"); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3056 LIR_Opr reg = result_register_for(x->type()); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3057 __ call_runtime_leaf(routine, getThreadTemp(), |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3058 reg, new LIR_OprList()); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3059 LIR_Opr result = rlock_result(x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3060 __ move(reg, result); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3061 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3062 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3063 #ifdef TRACE_HAVE_INTRINSICS |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3064 void LIRGenerator::do_ThreadIDIntrinsic(Intrinsic* x) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3065 LIR_Opr thread = getThreadPointer(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3066 LIR_Opr osthread = new_pointer_register(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3067 __ move(new LIR_Address(thread, in_bytes(JavaThread::osthread_offset()), osthread->type()), osthread); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3068 size_t thread_id_size = OSThread::thread_id_size(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3069 if (thread_id_size == (size_t) BytesPerLong) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3070 LIR_Opr id = new_register(T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3071 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_LONG), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3072 __ convert(Bytecodes::_l2i, id, rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3073 } else if (thread_id_size == (size_t) BytesPerInt) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3074 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_INT), rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3075 } else { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3076 ShouldNotReachHere(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3077 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3078 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3079 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3080 void LIRGenerator::do_ClassIDIntrinsic(Intrinsic* x) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3081 CodeEmitInfo* info = state_for(x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3082 CodeEmitInfo* info2 = new CodeEmitInfo(info); // Clone for the second null check |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3083 BasicType klass_pointer_type = NOT_LP64(T_INT) LP64_ONLY(T_LONG); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3084 assert(info != NULL, "must have info"); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3085 LIRItem arg(x->argument_at(1), this); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3086 arg.load_item(); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3087 LIR_Opr klass = new_pointer_register(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3088 __ move(new LIR_Address(arg.result(), java_lang_Class::klass_offset_in_bytes(), klass_pointer_type), klass, info); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3089 LIR_Opr id = new_register(T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3090 ByteSize offset = TRACE_ID_OFFSET; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3091 LIR_Address* trace_id_addr = new LIR_Address(klass, in_bytes(offset), T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3092 __ move(trace_id_addr, id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3093 __ logical_or(id, LIR_OprFact::longConst(0x01l), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3094 __ store(id, trace_id_addr); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3095 __ logical_and(id, LIR_OprFact::longConst(~0x3l), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3096 __ move(id, rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3097 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3098 #endif |
| 0 | 3099 |
| 3100 void LIRGenerator::do_Intrinsic(Intrinsic* x) { | |
| 3101 switch (x->id()) { | |
| 3102 case vmIntrinsics::_intBitsToFloat : | |
| 3103 case vmIntrinsics::_doubleToRawLongBits : | |
| 3104 case vmIntrinsics::_longBitsToDouble : | |
| 3105 case vmIntrinsics::_floatToRawIntBits : { | |
| 3106 do_FPIntrinsics(x); | |
| 3107 break; | |
| 3108 } | |
| 3109 | |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3110 #ifdef TRACE_HAVE_INTRINSICS |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3111 case vmIntrinsics::_threadID: do_ThreadIDIntrinsic(x); break; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3112 case vmIntrinsics::_classID: do_ClassIDIntrinsic(x); break; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3113 case vmIntrinsics::_counterTime: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3114 do_RuntimeCall(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), 0, x); |
| 0 | 3115 break; |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3116 #endif |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3117 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3118 case vmIntrinsics::_currentTimeMillis: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3119 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeMillis), 0, x); |
| 0 | 3120 break; |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3121 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3122 case vmIntrinsics::_nanoTime: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3123 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeNanos), 0, x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3124 break; |
| 0 | 3125 |
| 3126 case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break; | |
| 6135 | 3127 case vmIntrinsics::_isInstance: do_isInstance(x); break; |
| 0 | 3128 case vmIntrinsics::_getClass: do_getClass(x); break; |
| 3129 case vmIntrinsics::_currentThread: do_currentThread(x); break; | |
| 3130 | |
| 3131 case vmIntrinsics::_dlog: // fall through | |
| 3132 case vmIntrinsics::_dlog10: // fall through | |
| 3133 case vmIntrinsics::_dabs: // fall through | |
| 3134 case vmIntrinsics::_dsqrt: // fall through | |
| 3135 case vmIntrinsics::_dtan: // fall through | |
| 3136 case vmIntrinsics::_dsin : // fall through | |
|
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3137 case vmIntrinsics::_dcos : // fall through |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3138 case vmIntrinsics::_dexp : // fall through |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3139 case vmIntrinsics::_dpow : do_MathIntrinsic(x); break; |
| 0 | 3140 case vmIntrinsics::_arraycopy: do_ArrayCopy(x); break; |
| 3141 | |
| 3142 // java.nio.Buffer.checkIndex | |
| 3143 case vmIntrinsics::_checkIndex: do_NIOCheckIndex(x); break; | |
| 3144 | |
| 3145 case vmIntrinsics::_compareAndSwapObject: | |
| 3146 do_CompareAndSwap(x, objectType); | |
| 3147 break; | |
| 3148 case vmIntrinsics::_compareAndSwapInt: | |
| 3149 do_CompareAndSwap(x, intType); | |
| 3150 break; | |
| 3151 case vmIntrinsics::_compareAndSwapLong: | |
| 3152 do_CompareAndSwap(x, longType); | |
| 3153 break; | |
| 3154 | |
| 7425 | 3155 case vmIntrinsics::_loadFence : |
| 3156 if (os::is_MP()) __ membar_acquire(); | |
| 3157 break; | |
| 3158 case vmIntrinsics::_storeFence: | |
| 3159 if (os::is_MP()) __ membar_release(); | |
| 3160 break; | |
| 3161 case vmIntrinsics::_fullFence : | |
| 3162 if (os::is_MP()) __ membar(); | |
| 3163 break; | |
| 3164 | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3165 case vmIntrinsics::_Reference_get: |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3166 do_Reference_get(x); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3167 break; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3168 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3169 case vmIntrinsics::_updateCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3170 case vmIntrinsics::_updateBytesCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3171 case vmIntrinsics::_updateByteBufferCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3172 do_update_CRC32(x); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3173 break; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3174 |
| 0 | 3175 default: ShouldNotReachHere(); break; |
| 3176 } | |
| 3177 } | |
| 3178 | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3179 void LIRGenerator::profile_arguments(ProfileCall* x) { |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3180 if (compilation()->profile_arguments()) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3181 int bci = x->bci_of_invoke(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3182 ciMethodData* md = x->method()->method_data_or_null(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3183 ciProfileData* data = md->bci_to_data(bci); |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3184 if ((data->is_CallTypeData() && data->as_CallTypeData()->has_arguments()) || |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3185 (data->is_VirtualCallTypeData() && data->as_VirtualCallTypeData()->has_arguments())) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3186 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
|
3187 int base_offset = md->byte_offset_of_slot(data, extra); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3188 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3189 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
|
3190 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3191 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3192 int start = 0; |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3193 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
|
3194 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
|
3195 // 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
|
3196 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
|
3197 start = 1; |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3198 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3199 ciSignature* callee_signature = x->callee()->signature(); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3200 // method handle call to virtual method |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3201 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
|
3202 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
|
3203 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3204 bool ignored_will_link; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3205 ciSignature* signature_at_call = NULL; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3206 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
|
3207 ciSignatureStream signature_at_call_stream(signature_at_call); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3208 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3209 // 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
|
3210 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
|
3211 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
|
3212 ciKlass* exact = profile_type(md, base_offset, off, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3213 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
|
3214 !x->arg_needs_null_check(i+start), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3215 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
|
3216 if (exact != NULL) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3217 md->set_argument_type(bci, i, exact); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3218 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3219 } |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3220 } else { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3221 #ifdef ASSERT |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3222 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
|
3223 int n = x->nb_profiled_args(); |
|
17900
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3224 assert(MethodData::profile_parameters() && (MethodData::profile_arguments_jsr292_only() || |
|
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3225 (x->inlined() && ((code == Bytecodes::_invokedynamic && n <= 1) || (code == Bytecodes::_invokehandle && n <= 2)))), |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3226 "only at JSR292 bytecodes"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3227 #endif |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3228 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3229 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3230 } |
|
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 // profile parameters on entry to an inlined method |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3233 void LIRGenerator::profile_parameters_at_call(ProfileCall* x) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3234 if (compilation()->profile_parameters() && x->inlined()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3235 ciMethodData* md = x->callee()->method_data_or_null(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3236 if (md != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3237 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3238 if (parameters_type_data != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3239 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3240 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3241 bool has_receiver = !x->callee()->is_static(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3242 ciSignature* sig = x->callee()->signature(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3243 ciSignatureStream sig_stream(sig, has_receiver ? x->callee()->holder() : NULL); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3244 int i = 0; // to iterate on the Instructions |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3245 Value arg = x->recv(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3246 bool not_null = false; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3247 int bci = x->bci_of_invoke(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3248 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3249 // 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
|
3250 // 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
|
3251 // virtual method: the receiver is in the args list |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3252 if (arg == NULL || !Bytecodes::has_receiver(bc)) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3253 i = 1; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3254 arg = x->profiled_arg_at(0); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3255 not_null = !x->arg_needs_null_check(0); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3256 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3257 int k = 0; // to iterate on the profile data |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3258 for (;;) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3259 intptr_t profiled_k = parameters->type(k); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3260 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
|
3261 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
|
3262 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
|
3263 // 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
|
3264 if (exact != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3265 md->set_parameter_type(k, exact); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3266 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3267 k++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3268 if (k >= parameters_type_data->number_of_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3269 #ifdef ASSERT |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3270 int extra = 0; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3271 if (MethodData::profile_arguments() && TypeProfileParmsLimit != -1 && |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3272 x->nb_profiled_args() >= TypeProfileParmsLimit && |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3273 x->recv() != NULL && Bytecodes::has_receiver(bc)) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3274 extra += 1; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3275 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3276 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
|
3277 #endif |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3278 break; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3279 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3280 arg = x->profiled_arg_at(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3281 not_null = !x->arg_needs_null_check(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3282 i++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3283 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3284 } |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3285 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3286 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3287 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3288 |
| 0 | 3289 void LIRGenerator::do_ProfileCall(ProfileCall* x) { |
| 3290 // Need recv in a temporary register so it interferes with the other temporaries | |
| 3291 LIR_Opr recv = LIR_OprFact::illegalOpr; | |
| 3292 LIR_Opr mdo = new_register(T_OBJECT); | |
| 1783 | 3293 // tmp is used to hold the counters on SPARC |
| 3294 LIR_Opr tmp = new_pointer_register(); | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3295 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3296 if (x->nb_profiled_args() > 0) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3297 profile_arguments(x); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3298 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3299 |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3300 // profile parameters on inlined method entry including receiver |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3301 if (x->recv() != NULL || x->nb_profiled_args() > 0) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3302 profile_parameters_at_call(x); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3303 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3304 |
| 0 | 3305 if (x->recv() != NULL) { |
| 3306 LIRItem value(x->recv(), this); | |
| 3307 value.load_item(); | |
| 3308 recv = new_register(T_OBJECT); | |
| 3309 __ move(value.result(), recv); | |
| 3310 } | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
3311 __ profile_call(x->method(), x->bci_of_invoke(), x->callee(), mdo, recv, tmp, x->known_holder()); |
| 0 | 3312 } |
| 3313 | |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3314 void LIRGenerator::do_ProfileReturnType(ProfileReturnType* x) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3315 int bci = x->bci_of_invoke(); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3316 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
|
3317 ciProfileData* data = md->bci_to_data(bci); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3318 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
|
3319 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
|
3320 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3321 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3322 bool ignored_will_link; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3323 ciSignature* signature_at_call = NULL; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3324 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
|
3325 |
| 17628 | 3326 // The offset within the MDO of the entry to update may be too large |
| 3327 // to be used in load/store instructions on some platforms. So have | |
| 3328 // profile_type() compute the address of the profile in a register. | |
| 3329 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(data, ret->type_offset()), 0, | |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3330 ret->type(), x->ret(), mdp, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3331 !x->needs_null_check(), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3332 signature_at_call->return_type()->as_klass(), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3333 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
|
3334 if (exact != NULL) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3335 md->set_return_type(bci, exact); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3336 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3337 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3338 |
| 1783 | 3339 void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) { |
| 3340 // We can safely ignore accessors here, since c2 will inline them anyway, | |
| 3341 // accessors are also always mature. | |
| 3342 if (!x->inlinee()->is_accessor()) { | |
| 3343 CodeEmitInfo* info = state_for(x, x->state(), true); | |
|
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3344 // 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
|
3345 increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true); |
| 1783 | 3346 } |
| 3347 } | |
| 3348 | |
| 3349 void LIRGenerator::increment_event_counter(CodeEmitInfo* info, int bci, bool backedge) { | |
| 3350 int freq_log; | |
| 3351 int level = compilation()->env()->comp_level(); | |
| 3352 if (level == CompLevel_limited_profile) { | |
| 3353 freq_log = (backedge ? Tier2BackedgeNotifyFreqLog : Tier2InvokeNotifyFreqLog); | |
| 3354 } else if (level == CompLevel_full_profile) { | |
| 3355 freq_log = (backedge ? Tier3BackedgeNotifyFreqLog : Tier3InvokeNotifyFreqLog); | |
| 3356 } else { | |
| 3357 ShouldNotReachHere(); | |
| 3358 } | |
| 3359 // Increment the appropriate invocation/backedge counter and notify the runtime. | |
| 3360 increment_event_counter_impl(info, info->scope()->method(), (1 << freq_log) - 1, bci, backedge, true); | |
| 0 | 3361 } |
| 3362 | |
| 1783 | 3363 void LIRGenerator::increment_event_counter_impl(CodeEmitInfo* info, |
| 3364 ciMethod *method, int frequency, | |
| 3365 int bci, bool backedge, bool notify) { | |
| 3366 assert(frequency == 0 || is_power_of_2(frequency + 1), "Frequency must be x^2 - 1 or 0"); | |
| 3367 int level = _compilation->env()->comp_level(); | |
| 3368 assert(level > CompLevel_simple, "Shouldn't be here"); | |
| 3369 | |
| 3370 int offset = -1; | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3371 LIR_Opr counter_holder; |
| 1783 | 3372 if (level == CompLevel_limited_profile) { |
|
12868
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3373 MethodCounters* counters_adr = method->ensure_method_counters(); |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3374 if (counters_adr == NULL) { |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3375 bailout("method counters allocation failed"); |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3376 return; |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3377 } |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3378 counter_holder = new_pointer_register(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3379 __ 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
|
3380 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
|
3381 MethodCounters::invocation_counter_offset()); |
| 1783 | 3382 } 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
|
3383 counter_holder = new_register(T_METADATA); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3384 offset = in_bytes(backedge ? MethodData::backedge_counter_offset() : |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3385 MethodData::invocation_counter_offset()); |
|
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3386 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
|
3387 assert(md != NULL, "Sanity"); |
|
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
3388 __ metadata2reg(md->constant_encoding(), counter_holder); |
| 1783 | 3389 } else { |
| 3390 ShouldNotReachHere(); | |
| 3391 } | |
| 3392 LIR_Address* counter = new LIR_Address(counter_holder, offset, T_INT); | |
| 3393 LIR_Opr result = new_register(T_INT); | |
| 3394 __ load(counter, result); | |
| 3395 __ add(result, LIR_OprFact::intConst(InvocationCounter::count_increment), result); | |
| 3396 __ store(result, counter); | |
| 3397 if (notify) { | |
| 3398 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
|
3399 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
|
3400 __ metadata2reg(method->constant_encoding(), meth); |
| 1783 | 3401 __ logical_and(result, mask, result); |
| 3402 __ cmp(lir_cond_equal, result, LIR_OprFact::intConst(0)); | |
| 3403 // The bci for info can point to cmp for if's we want the if bci | |
| 3404 CodeStub* overflow = new CounterOverflowStub(info, bci, meth); | |
| 3405 __ branch(lir_cond_equal, T_INT, overflow); | |
| 3406 __ branch_destination(overflow->continuation()); | |
| 3407 } | |
| 3408 } | |
| 0 | 3409 |
|
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3410 void LIRGenerator::do_RuntimeCall(RuntimeCall* x) { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3411 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
|
3412 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
|
3413 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3414 if (x->pass_thread()) { |
|
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
3415 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
|
3416 args->append(getThreadPointer()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3417 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3418 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3419 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
|
3420 Value a = x->argument_at(i); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3421 LIRItem* item = new LIRItem(a, this); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3422 item->load_item(); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3423 args->append(item->result()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3424 signature->append(as_BasicType(a->type())); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3425 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3426 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3427 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
|
3428 if (x->type() == voidType) { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3429 set_no_result(x); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3430 } else { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3431 __ move(result, rlock_result(x)); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3432 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3433 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3434 |
|
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3435 #ifdef ASSERT |
| 8860 | 3436 void LIRGenerator::do_Assert(Assert *x) { |
| 3437 ValueTag tag = x->x()->type()->tag(); | |
| 3438 If::Condition cond = x->cond(); | |
| 3439 | |
| 3440 LIRItem xitem(x->x(), this); | |
| 3441 LIRItem yitem(x->y(), this); | |
| 3442 LIRItem* xin = &xitem; | |
| 3443 LIRItem* yin = &yitem; | |
| 3444 | |
| 3445 assert(tag == intTag, "Only integer assertions are valid!"); | |
| 3446 | |
| 3447 xin->load_item(); | |
| 3448 yin->dont_load_item(); | |
| 3449 | |
| 3450 set_no_result(x); | |
| 3451 | |
| 3452 LIR_Opr left = xin->result(); | |
| 3453 LIR_Opr right = yin->result(); | |
| 3454 | |
| 3455 __ lir_assert(lir_cond(x->cond()), left, right, x->message(), true); | |
|
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3456 } |
| 8860 | 3457 #endif |
| 3458 | |
| 3459 void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) { | |
| 3460 | |
| 3461 | |
| 3462 Instruction *a = x->x(); | |
| 3463 Instruction *b = x->y(); | |
| 3464 if (!a || StressRangeCheckElimination) { | |
| 3465 assert(!b || StressRangeCheckElimination, "B must also be null"); | |
| 3466 | |
| 3467 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3468 CodeStub* stub = new PredicateFailedStub(info); | |
| 3469 | |
| 3470 __ jump(stub); | |
| 3471 } else if (a->type()->as_IntConstant() && b->type()->as_IntConstant()) { | |
| 3472 int a_int = a->type()->as_IntConstant()->value(); | |
| 3473 int b_int = b->type()->as_IntConstant()->value(); | |
| 3474 | |
| 3475 bool ok = false; | |
| 3476 | |
| 3477 switch(x->cond()) { | |
| 3478 case Instruction::eql: ok = (a_int == b_int); break; | |
| 3479 case Instruction::neq: ok = (a_int != b_int); break; | |
| 3480 case Instruction::lss: ok = (a_int < b_int); break; | |
| 3481 case Instruction::leq: ok = (a_int <= b_int); break; | |
| 3482 case Instruction::gtr: ok = (a_int > b_int); break; | |
| 3483 case Instruction::geq: ok = (a_int >= b_int); break; | |
| 3484 case Instruction::aeq: ok = ((unsigned int)a_int >= (unsigned int)b_int); break; | |
| 3485 case Instruction::beq: ok = ((unsigned int)a_int <= (unsigned int)b_int); break; | |
| 3486 default: ShouldNotReachHere(); | |
| 3487 } | |
| 3488 | |
| 3489 if (ok) { | |
| 3490 | |
| 3491 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3492 CodeStub* stub = new PredicateFailedStub(info); | |
| 3493 | |
| 3494 __ jump(stub); | |
| 3495 } | |
| 3496 } else { | |
| 3497 | |
| 3498 ValueTag tag = x->x()->type()->tag(); | |
| 3499 If::Condition cond = x->cond(); | |
| 3500 LIRItem xitem(x->x(), this); | |
| 3501 LIRItem yitem(x->y(), this); | |
| 3502 LIRItem* xin = &xitem; | |
| 3503 LIRItem* yin = &yitem; | |
| 3504 | |
| 3505 assert(tag == intTag, "Only integer deoptimizations are valid!"); | |
| 3506 | |
| 3507 xin->load_item(); | |
| 3508 yin->dont_load_item(); | |
| 3509 set_no_result(x); | |
| 3510 | |
| 3511 LIR_Opr left = xin->result(); | |
| 3512 LIR_Opr right = yin->result(); | |
| 3513 | |
| 3514 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3515 CodeStub* stub = new PredicateFailedStub(info); | |
| 3516 | |
| 3517 __ cmp(lir_cond(cond), left, right); | |
| 3518 __ branch(lir_cond(cond), right->type(), stub); | |
| 3519 } | |
| 3520 } | |
| 3521 | |
| 3522 | |
| 0 | 3523 LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) { |
| 3524 LIRItemList args(1); | |
| 3525 LIRItem value(arg1, this); | |
| 3526 args.append(&value); | |
| 3527 BasicTypeList signature; | |
| 3528 signature.append(as_BasicType(arg1->type())); | |
| 3529 | |
| 3530 return call_runtime(&signature, &args, entry, result_type, info); | |
| 3531 } | |
| 3532 | |
| 3533 | |
| 3534 LIR_Opr LIRGenerator::call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3535 LIRItemList args(2); | |
| 3536 LIRItem value1(arg1, this); | |
| 3537 LIRItem value2(arg2, this); | |
| 3538 args.append(&value1); | |
| 3539 args.append(&value2); | |
| 3540 BasicTypeList signature; | |
| 3541 signature.append(as_BasicType(arg1->type())); | |
| 3542 signature.append(as_BasicType(arg2->type())); | |
| 3543 | |
| 3544 return call_runtime(&signature, &args, entry, result_type, info); | |
| 3545 } | |
| 3546 | |
| 3547 | |
| 3548 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIR_OprList* args, | |
| 3549 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3550 // get a result register | |
| 3551 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
| 3552 LIR_Opr result = LIR_OprFact::illegalOpr; | |
| 3553 if (result_type->tag() != voidTag) { | |
| 3554 result = new_register(result_type); | |
| 3555 phys_reg = result_register_for(result_type); | |
| 3556 } | |
| 3557 | |
| 3558 // move the arguments into the correct location | |
| 3559 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
| 3560 assert(cc->length() == args->length(), "argument mismatch"); | |
| 3561 for (int i = 0; i < args->length(); i++) { | |
| 3562 LIR_Opr arg = args->at(i); | |
| 3563 LIR_Opr loc = cc->at(i); | |
| 3564 if (loc->is_register()) { | |
| 3565 __ move(arg, loc); | |
| 3566 } else { | |
| 3567 LIR_Address* addr = loc->as_address_ptr(); | |
| 3568 // if (!can_store_as_constant(arg)) { | |
| 3569 // LIR_Opr tmp = new_register(arg->type()); | |
| 3570 // __ move(arg, tmp); | |
| 3571 // arg = tmp; | |
| 3572 // } | |
| 3573 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 3574 __ unaligned_move(arg, addr); | |
| 3575 } else { | |
| 3576 __ move(arg, addr); | |
| 3577 } | |
| 3578 } | |
| 3579 } | |
| 3580 | |
| 3581 if (info) { | |
| 3582 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
| 3583 } else { | |
| 3584 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
| 3585 } | |
| 3586 if (result->is_valid()) { | |
| 3587 __ move(phys_reg, result); | |
| 3588 } | |
| 3589 return result; | |
| 3590 } | |
| 3591 | |
| 3592 | |
| 3593 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIRItemList* args, | |
| 3594 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3595 // get a result register | |
| 3596 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
| 3597 LIR_Opr result = LIR_OprFact::illegalOpr; | |
| 3598 if (result_type->tag() != voidTag) { | |
| 3599 result = new_register(result_type); | |
| 3600 phys_reg = result_register_for(result_type); | |
| 3601 } | |
| 3602 | |
| 3603 // move the arguments into the correct location | |
| 3604 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
| 3605 | |
| 3606 assert(cc->length() == args->length(), "argument mismatch"); | |
| 3607 for (int i = 0; i < args->length(); i++) { | |
| 3608 LIRItem* arg = args->at(i); | |
| 3609 LIR_Opr loc = cc->at(i); | |
| 3610 if (loc->is_register()) { | |
| 3611 arg->load_item_force(loc); | |
| 3612 } else { | |
| 3613 LIR_Address* addr = loc->as_address_ptr(); | |
| 3614 arg->load_for_store(addr->type()); | |
| 3615 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 3616 __ unaligned_move(arg->result(), addr); | |
| 3617 } else { | |
| 3618 __ move(arg->result(), addr); | |
| 3619 } | |
| 3620 } | |
| 3621 } | |
| 3622 | |
| 3623 if (info) { | |
| 3624 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
| 3625 } else { | |
| 3626 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
| 3627 } | |
| 3628 if (result->is_valid()) { | |
| 3629 __ move(phys_reg, result); | |
| 3630 } | |
| 3631 return result; | |
| 3632 } | |
|
4966
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3633 |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3634 void LIRGenerator::do_MemBar(MemBar* x) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3635 if (os::is_MP()) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3636 LIR_Code code = x->code(); |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3637 switch(code) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3638 case lir_membar_acquire : __ membar_acquire(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3639 case lir_membar_release : __ membar_release(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3640 case lir_membar : __ membar(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3641 case lir_membar_loadload : __ membar_loadload(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3642 case lir_membar_storestore: __ membar_storestore(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3643 case lir_membar_loadstore : __ membar_loadstore(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3644 case lir_membar_storeload : __ membar_storeload(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3645 default : ShouldNotReachHere(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3646 } |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3647 } |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3648 } |
| 23614 | 3649 |
| 3650 LIR_Opr LIRGenerator::maybe_mask_boolean(StoreIndexed* x, LIR_Opr array, LIR_Opr value, CodeEmitInfo*& null_check_info) { | |
| 3651 if (x->check_boolean()) { | |
| 3652 LIR_Opr value_fixed = rlock_byte(T_BYTE); | |
| 3653 if (TwoOperandLIRForm) { | |
| 3654 __ move(value, value_fixed); | |
| 3655 __ logical_and(value_fixed, LIR_OprFact::intConst(1), value_fixed); | |
| 3656 } else { | |
| 3657 __ logical_and(value, LIR_OprFact::intConst(1), value_fixed); | |
| 3658 } | |
| 3659 LIR_Opr klass = new_register(T_METADATA); | |
| 3660 __ move(new LIR_Address(array, oopDesc::klass_offset_in_bytes(), T_ADDRESS), klass, null_check_info); | |
| 3661 null_check_info = NULL; | |
| 3662 LIR_Opr layout = new_register(T_INT); | |
| 3663 __ move(new LIR_Address(klass, in_bytes(Klass::layout_helper_offset()), T_INT), layout); | |
| 3664 int diffbit = Klass::layout_helper_boolean_diffbit(); | |
| 3665 __ logical_and(layout, LIR_OprFact::intConst(diffbit), layout); | |
| 3666 __ cmp(lir_cond_notEqual, layout, LIR_OprFact::intConst(0)); | |
| 3667 __ cmove(lir_cond_notEqual, value_fixed, value, value_fixed, T_BYTE); | |
| 3668 value = value_fixed; | |
| 3669 } | |
| 3670 return value; | |
| 3671 } |