Mercurial > hg > graal-compiler
annotate src/share/vm/c1/c1_LIRAssembler.cpp @ 1819:f02a8bbe6ed4
6986046: C1 valuestack cleanup
Summary: fixes an historical oddity in C1 with inlining where all of the expression stacks are kept in the topmost ValueStack instead of being in their respective ValueStacks.
Reviewed-by: never
Contributed-by: Christian Wimmer <cwimmer@uci.edu>
| author | roland |
|---|---|
| date | Tue, 29 Dec 2009 19:08:54 +0100 |
| parents | d5d065957597 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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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 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_c1_LIRAssembler.cpp.incl" | |
| 27 | |
| 28 | |
| 29 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) { | |
| 30 // we must have enough patching space so that call can be inserted | |
| 31 while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeCall::instruction_size) { | |
| 32 _masm->nop(); | |
| 33 } | |
| 34 patch->install(_masm, patch_code, obj, info); | |
| 35 append_patching_stub(patch); | |
| 36 | |
| 37 #ifdef ASSERT | |
| 1819 | 38 Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->stack()->bci()); |
| 0 | 39 if (patch->id() == PatchingStub::access_field_id) { |
| 40 switch (code) { | |
| 41 case Bytecodes::_putstatic: | |
| 42 case Bytecodes::_getstatic: | |
| 43 case Bytecodes::_putfield: | |
| 44 case Bytecodes::_getfield: | |
| 45 break; | |
| 46 default: | |
| 47 ShouldNotReachHere(); | |
| 48 } | |
| 49 } else if (patch->id() == PatchingStub::load_klass_id) { | |
| 50 switch (code) { | |
| 51 case Bytecodes::_putstatic: | |
| 52 case Bytecodes::_getstatic: | |
| 53 case Bytecodes::_new: | |
| 54 case Bytecodes::_anewarray: | |
| 55 case Bytecodes::_multianewarray: | |
| 56 case Bytecodes::_instanceof: | |
| 57 case Bytecodes::_checkcast: | |
| 58 case Bytecodes::_ldc: | |
| 59 case Bytecodes::_ldc_w: | |
| 60 break; | |
| 61 default: | |
| 62 ShouldNotReachHere(); | |
| 63 } | |
| 64 } else { | |
| 65 ShouldNotReachHere(); | |
| 66 } | |
| 67 #endif | |
| 68 } | |
| 69 | |
| 70 | |
| 71 //--------------------------------------------------------------- | |
| 72 | |
| 73 | |
| 74 LIR_Assembler::LIR_Assembler(Compilation* c): | |
| 75 _compilation(c) | |
| 76 , _masm(c->masm()) | |
| 342 | 77 , _bs(Universe::heap()->barrier_set()) |
| 0 | 78 , _frame_map(c->frame_map()) |
| 79 , _current_block(NULL) | |
| 80 , _pending_non_safepoint(NULL) | |
| 81 , _pending_non_safepoint_offset(0) | |
| 82 { | |
| 83 _slow_case_stubs = new CodeStubList(); | |
| 84 } | |
| 85 | |
| 86 | |
| 87 LIR_Assembler::~LIR_Assembler() { | |
| 88 } | |
| 89 | |
| 90 | |
| 91 void LIR_Assembler::append_patching_stub(PatchingStub* stub) { | |
| 92 _slow_case_stubs->append(stub); | |
| 93 } | |
| 94 | |
| 95 | |
| 96 void LIR_Assembler::check_codespace() { | |
| 97 CodeSection* cs = _masm->code_section(); | |
| 98 if (cs->remaining() < (int)(1*K)) { | |
| 99 BAILOUT("CodeBuffer overflow"); | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 | |
| 104 void LIR_Assembler::emit_code_stub(CodeStub* stub) { | |
| 105 _slow_case_stubs->append(stub); | |
| 106 } | |
| 107 | |
| 108 void LIR_Assembler::emit_stubs(CodeStubList* stub_list) { | |
| 109 for (int m = 0; m < stub_list->length(); m++) { | |
| 110 CodeStub* s = (*stub_list)[m]; | |
| 111 | |
| 112 check_codespace(); | |
| 113 CHECK_BAILOUT(); | |
| 114 | |
| 115 #ifndef PRODUCT | |
| 116 if (CommentedAssembly) { | |
| 117 stringStream st; | |
| 118 s->print_name(&st); | |
| 119 st.print(" slow case"); | |
| 120 _masm->block_comment(st.as_string()); | |
| 121 } | |
| 122 #endif | |
| 123 s->emit_code(this); | |
| 124 #ifdef ASSERT | |
| 125 s->assert_no_unbound_labels(); | |
| 126 #endif | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 | |
| 131 void LIR_Assembler::emit_slow_case_stubs() { | |
| 132 emit_stubs(_slow_case_stubs); | |
| 133 } | |
| 134 | |
| 135 | |
| 136 bool LIR_Assembler::needs_icache(ciMethod* method) const { | |
| 137 return !method->is_static(); | |
| 138 } | |
| 139 | |
| 140 | |
| 141 int LIR_Assembler::code_offset() const { | |
| 142 return _masm->offset(); | |
| 143 } | |
| 144 | |
| 145 | |
| 146 address LIR_Assembler::pc() const { | |
| 147 return _masm->pc(); | |
| 148 } | |
| 149 | |
| 150 | |
| 151 void LIR_Assembler::emit_exception_entries(ExceptionInfoList* info_list) { | |
| 152 for (int i = 0; i < info_list->length(); i++) { | |
| 153 XHandlers* handlers = info_list->at(i)->exception_handlers(); | |
| 154 | |
| 155 for (int j = 0; j < handlers->length(); j++) { | |
| 156 XHandler* handler = handlers->handler_at(j); | |
| 157 assert(handler->lir_op_id() != -1, "handler not processed by LinearScan"); | |
| 158 assert(handler->entry_code() == NULL || | |
| 159 handler->entry_code()->instructions_list()->last()->code() == lir_branch || | |
| 160 handler->entry_code()->instructions_list()->last()->code() == lir_delay_slot, "last operation must be branch"); | |
| 161 | |
| 162 if (handler->entry_pco() == -1) { | |
| 163 // entry code not emitted yet | |
| 164 if (handler->entry_code() != NULL && handler->entry_code()->instructions_list()->length() > 1) { | |
| 165 handler->set_entry_pco(code_offset()); | |
| 166 if (CommentedAssembly) { | |
| 167 _masm->block_comment("Exception adapter block"); | |
| 168 } | |
| 169 emit_lir_list(handler->entry_code()); | |
| 170 } else { | |
| 171 handler->set_entry_pco(handler->entry_block()->exception_handler_pco()); | |
| 172 } | |
| 173 | |
| 174 assert(handler->entry_pco() != -1, "must be set now"); | |
| 175 } | |
| 176 } | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 | |
| 181 void LIR_Assembler::emit_code(BlockList* hir) { | |
| 182 if (PrintLIR) { | |
| 183 print_LIR(hir); | |
| 184 } | |
| 185 | |
| 186 int n = hir->length(); | |
| 187 for (int i = 0; i < n; i++) { | |
| 188 emit_block(hir->at(i)); | |
| 189 CHECK_BAILOUT(); | |
| 190 } | |
| 191 | |
| 192 flush_debug_info(code_offset()); | |
| 193 | |
| 194 DEBUG_ONLY(check_no_unbound_labels()); | |
| 195 } | |
| 196 | |
| 197 | |
| 198 void LIR_Assembler::emit_block(BlockBegin* block) { | |
| 199 if (block->is_set(BlockBegin::backward_branch_target_flag)) { | |
| 200 align_backward_branch_target(); | |
| 201 } | |
| 202 | |
| 203 // if this block is the start of an exception handler, record the | |
| 204 // PC offset of the first instruction for later construction of | |
| 205 // the ExceptionHandlerTable | |
| 206 if (block->is_set(BlockBegin::exception_entry_flag)) { | |
| 207 block->set_exception_handler_pco(code_offset()); | |
| 208 } | |
| 209 | |
| 210 #ifndef PRODUCT | |
| 211 if (PrintLIRWithAssembly) { | |
| 212 // don't print Phi's | |
| 213 InstructionPrinter ip(false); | |
| 214 block->print(ip); | |
| 215 } | |
| 216 #endif /* PRODUCT */ | |
| 217 | |
| 218 assert(block->lir() != NULL, "must have LIR"); | |
| 304 | 219 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
| 0 | 220 |
| 221 #ifndef PRODUCT | |
| 222 if (CommentedAssembly) { | |
| 223 stringStream st; | |
| 1819 | 224 st.print_cr(" block B%d [%d, %d]", block->block_id(), block->bci(), block->end()->printable_bci()); |
| 0 | 225 _masm->block_comment(st.as_string()); |
| 226 } | |
| 227 #endif | |
| 228 | |
| 229 emit_lir_list(block->lir()); | |
| 230 | |
| 304 | 231 X86_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed")); |
| 0 | 232 } |
| 233 | |
| 234 | |
| 235 void LIR_Assembler::emit_lir_list(LIR_List* list) { | |
| 236 peephole(list); | |
| 237 | |
| 238 int n = list->length(); | |
| 239 for (int i = 0; i < n; i++) { | |
| 240 LIR_Op* op = list->at(i); | |
| 241 | |
| 242 check_codespace(); | |
| 243 CHECK_BAILOUT(); | |
| 244 | |
| 245 #ifndef PRODUCT | |
| 246 if (CommentedAssembly) { | |
| 247 // Don't record out every op since that's too verbose. Print | |
| 248 // branches since they include block and stub names. Also print | |
| 249 // patching moves since they generate funny looking code. | |
| 250 if (op->code() == lir_branch || | |
| 251 (op->code() == lir_move && op->as_Op1()->patch_code() != lir_patch_none)) { | |
| 252 stringStream st; | |
| 253 op->print_on(&st); | |
| 254 _masm->block_comment(st.as_string()); | |
| 255 } | |
| 256 } | |
| 257 if (PrintLIRWithAssembly) { | |
| 258 // print out the LIR operation followed by the resulting assembly | |
| 259 list->at(i)->print(); tty->cr(); | |
| 260 } | |
| 261 #endif /* PRODUCT */ | |
| 262 | |
| 263 op->emit_code(this); | |
| 264 | |
| 265 if (compilation()->debug_info_recorder()->recording_non_safepoints()) { | |
| 266 process_debug_info(op); | |
| 267 } | |
| 268 | |
| 269 #ifndef PRODUCT | |
| 270 if (PrintLIRWithAssembly) { | |
| 271 _masm->code()->decode(); | |
| 272 } | |
| 273 #endif /* PRODUCT */ | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 #ifdef ASSERT | |
| 278 void LIR_Assembler::check_no_unbound_labels() { | |
| 279 CHECK_BAILOUT(); | |
| 280 | |
| 281 for (int i = 0; i < _branch_target_blocks.length() - 1; i++) { | |
| 282 if (!_branch_target_blocks.at(i)->label()->is_bound()) { | |
| 283 tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id()); | |
| 284 assert(false, "unbound label"); | |
| 285 } | |
| 286 } | |
| 287 } | |
| 288 #endif | |
| 289 | |
| 290 //----------------------------------debug info-------------------------------- | |
| 291 | |
| 292 | |
| 293 void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) { | |
| 294 _masm->code_section()->relocate(pc(), relocInfo::poll_type); | |
| 295 int pc_offset = code_offset(); | |
| 296 flush_debug_info(pc_offset); | |
| 297 info->record_debug_info(compilation()->debug_info_recorder(), pc_offset); | |
| 298 if (info->exception_handlers() != NULL) { | |
| 299 compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers()); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 | |
| 1564 | 304 void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo) { |
| 0 | 305 flush_debug_info(pc_offset); |
| 1564 | 306 cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset); |
| 0 | 307 if (cinfo->exception_handlers() != NULL) { |
| 308 compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers()); | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 static ValueStack* debug_info(Instruction* ins) { | |
| 313 StateSplit* ss = ins->as_StateSplit(); | |
| 314 if (ss != NULL) return ss->state(); | |
| 1819 | 315 return ins->state_before(); |
| 0 | 316 } |
| 317 | |
| 318 void LIR_Assembler::process_debug_info(LIR_Op* op) { | |
| 319 Instruction* src = op->source(); | |
| 320 if (src == NULL) return; | |
| 321 int pc_offset = code_offset(); | |
| 322 if (_pending_non_safepoint == src) { | |
| 323 _pending_non_safepoint_offset = pc_offset; | |
| 324 return; | |
| 325 } | |
| 326 ValueStack* vstack = debug_info(src); | |
| 327 if (vstack == NULL) return; | |
| 328 if (_pending_non_safepoint != NULL) { | |
| 329 // Got some old debug info. Get rid of it. | |
| 1819 | 330 if (debug_info(_pending_non_safepoint) == vstack) { |
| 0 | 331 _pending_non_safepoint_offset = pc_offset; |
| 332 return; | |
| 333 } | |
| 334 if (_pending_non_safepoint_offset < pc_offset) { | |
| 335 record_non_safepoint_debug_info(); | |
| 336 } | |
| 337 _pending_non_safepoint = NULL; | |
| 338 } | |
| 339 // Remember the debug info. | |
| 340 if (pc_offset > compilation()->debug_info_recorder()->last_pc_offset()) { | |
| 341 _pending_non_safepoint = src; | |
| 342 _pending_non_safepoint_offset = pc_offset; | |
| 343 } | |
| 344 } | |
| 345 | |
| 346 // Index caller states in s, where 0 is the oldest, 1 its callee, etc. | |
| 347 // Return NULL if n is too large. | |
| 348 // Returns the caller_bci for the next-younger state, also. | |
| 349 static ValueStack* nth_oldest(ValueStack* s, int n, int& bci_result) { | |
| 350 ValueStack* t = s; | |
| 351 for (int i = 0; i < n; i++) { | |
| 352 if (t == NULL) break; | |
| 353 t = t->caller_state(); | |
| 354 } | |
| 355 if (t == NULL) return NULL; | |
| 356 for (;;) { | |
| 357 ValueStack* tc = t->caller_state(); | |
| 358 if (tc == NULL) return s; | |
| 359 t = tc; | |
| 1819 | 360 bci_result = tc->bci(); |
| 0 | 361 s = s->caller_state(); |
| 362 } | |
| 363 } | |
| 364 | |
| 365 void LIR_Assembler::record_non_safepoint_debug_info() { | |
| 366 int pc_offset = _pending_non_safepoint_offset; | |
| 367 ValueStack* vstack = debug_info(_pending_non_safepoint); | |
| 1819 | 368 int bci = vstack->bci(); |
| 0 | 369 |
| 370 DebugInformationRecorder* debug_info = compilation()->debug_info_recorder(); | |
| 371 assert(debug_info->recording_non_safepoints(), "sanity"); | |
| 372 | |
| 373 debug_info->add_non_safepoint(pc_offset); | |
| 374 | |
| 375 // Visit scopes from oldest to youngest. | |
| 376 for (int n = 0; ; n++) { | |
| 377 int s_bci = bci; | |
| 378 ValueStack* s = nth_oldest(vstack, n, s_bci); | |
| 379 if (s == NULL) break; | |
| 380 IRScope* scope = s->scope(); | |
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381 //Always pass false for reexecute since these ScopeDescs are never used for deopt |
| 1819 | 382 debug_info->describe_scope(pc_offset, scope->method(), s->bci(), false/*reexecute*/); |
| 0 | 383 } |
| 384 | |
| 385 debug_info->end_non_safepoint(pc_offset); | |
| 386 } | |
| 387 | |
| 388 | |
| 389 void LIR_Assembler::add_debug_info_for_null_check_here(CodeEmitInfo* cinfo) { | |
| 390 add_debug_info_for_null_check(code_offset(), cinfo); | |
| 391 } | |
| 392 | |
| 393 void LIR_Assembler::add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo) { | |
| 394 ImplicitNullCheckStub* stub = new ImplicitNullCheckStub(pc_offset, cinfo); | |
| 395 emit_code_stub(stub); | |
| 396 } | |
| 397 | |
| 398 void LIR_Assembler::add_debug_info_for_div0_here(CodeEmitInfo* info) { | |
| 399 add_debug_info_for_div0(code_offset(), info); | |
| 400 } | |
| 401 | |
| 402 void LIR_Assembler::add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo) { | |
| 403 DivByZeroStub* stub = new DivByZeroStub(pc_offset, cinfo); | |
| 404 emit_code_stub(stub); | |
| 405 } | |
| 406 | |
| 407 void LIR_Assembler::emit_rtcall(LIR_OpRTCall* op) { | |
| 408 rt_call(op->result_opr(), op->addr(), op->arguments(), op->tmp(), op->info()); | |
| 409 } | |
| 410 | |
| 411 | |
| 412 void LIR_Assembler::emit_call(LIR_OpJavaCall* op) { | |
| 413 verify_oop_map(op->info()); | |
| 414 | |
| 415 if (os::is_MP()) { | |
| 416 // must align calls sites, otherwise they can't be updated atomically on MP hardware | |
| 417 align_call(op->code()); | |
| 418 } | |
| 419 | |
| 420 // emit the static call stub stuff out of line | |
| 421 emit_static_call_stub(); | |
| 422 | |
| 423 switch (op->code()) { | |
| 424 case lir_static_call: | |
| 1295 | 425 call(op, relocInfo::static_call_type); |
| 0 | 426 break; |
| 427 case lir_optvirtual_call: | |
| 1295 | 428 case lir_dynamic_call: |
| 429 call(op, relocInfo::opt_virtual_call_type); | |
| 0 | 430 break; |
| 431 case lir_icvirtual_call: | |
| 1295 | 432 ic_call(op); |
| 0 | 433 break; |
| 434 case lir_virtual_call: | |
| 1295 | 435 vtable_call(op); |
| 0 | 436 break; |
| 437 default: ShouldNotReachHere(); | |
| 438 } | |
| 1295 | 439 |
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440 // JSR 292 |
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441 // Record if this method has MethodHandle invokes. |
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442 if (op->is_method_handle_invoke()) { |
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443 compilation()->set_has_method_handle_invokes(true); |
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444 } |
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445 |
| 304 | 446 #if defined(X86) && defined(TIERED) |
| 0 | 447 // C2 leave fpu stack dirty clean it |
| 448 if (UseSSE < 2) { | |
| 449 int i; | |
| 450 for ( i = 1; i <= 7 ; i++ ) { | |
| 451 ffree(i); | |
| 452 } | |
| 453 if (!op->result_opr()->is_float_kind()) { | |
| 454 ffree(0); | |
| 455 } | |
| 456 } | |
| 304 | 457 #endif // X86 && TIERED |
| 0 | 458 } |
| 459 | |
| 460 | |
| 461 void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) { | |
| 462 _masm->bind (*(op->label())); | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void LIR_Assembler::emit_op1(LIR_Op1* op) { | |
| 467 switch (op->code()) { | |
| 468 case lir_move: | |
| 469 if (op->move_kind() == lir_move_volatile) { | |
| 470 assert(op->patch_code() == lir_patch_none, "can't patch volatiles"); | |
| 471 volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info()); | |
| 472 } else { | |
| 473 move_op(op->in_opr(), op->result_opr(), op->type(), | |
| 474 op->patch_code(), op->info(), op->pop_fpu_stack(), op->move_kind() == lir_move_unaligned); | |
| 475 } | |
| 476 break; | |
| 477 | |
| 478 case lir_prefetchr: | |
| 479 prefetchr(op->in_opr()); | |
| 480 break; | |
| 481 | |
| 482 case lir_prefetchw: | |
| 483 prefetchw(op->in_opr()); | |
| 484 break; | |
| 485 | |
| 486 case lir_roundfp: { | |
| 487 LIR_OpRoundFP* round_op = op->as_OpRoundFP(); | |
| 488 roundfp_op(round_op->in_opr(), round_op->tmp(), round_op->result_opr(), round_op->pop_fpu_stack()); | |
| 489 break; | |
| 490 } | |
| 491 | |
| 492 case lir_return: | |
| 493 return_op(op->in_opr()); | |
| 494 break; | |
| 495 | |
| 496 case lir_safepoint: | |
| 497 if (compilation()->debug_info_recorder()->last_pc_offset() == code_offset()) { | |
| 498 _masm->nop(); | |
| 499 } | |
| 500 safepoint_poll(op->in_opr(), op->info()); | |
| 501 break; | |
| 502 | |
| 503 case lir_fxch: | |
| 504 fxch(op->in_opr()->as_jint()); | |
| 505 break; | |
| 506 | |
| 507 case lir_fld: | |
| 508 fld(op->in_opr()->as_jint()); | |
| 509 break; | |
| 510 | |
| 511 case lir_ffree: | |
| 512 ffree(op->in_opr()->as_jint()); | |
| 513 break; | |
| 514 | |
| 515 case lir_branch: | |
| 516 break; | |
| 517 | |
| 518 case lir_push: | |
| 519 push(op->in_opr()); | |
| 520 break; | |
| 521 | |
| 522 case lir_pop: | |
| 523 pop(op->in_opr()); | |
| 524 break; | |
| 525 | |
| 526 case lir_neg: | |
| 527 negate(op->in_opr(), op->result_opr()); | |
| 528 break; | |
| 529 | |
| 530 case lir_leal: | |
| 531 leal(op->in_opr(), op->result_opr()); | |
| 532 break; | |
| 533 | |
| 534 case lir_null_check: | |
| 535 if (GenerateCompilerNullChecks) { | |
| 536 add_debug_info_for_null_check_here(op->info()); | |
| 537 | |
| 538 if (op->in_opr()->is_single_cpu()) { | |
| 539 _masm->null_check(op->in_opr()->as_register()); | |
| 540 } else { | |
| 541 Unimplemented(); | |
| 542 } | |
| 543 } | |
| 544 break; | |
| 545 | |
| 546 case lir_monaddr: | |
| 547 monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr()); | |
| 548 break; | |
| 549 | |
| 1783 | 550 #ifdef SPARC |
| 551 case lir_pack64: | |
| 552 pack64(op->in_opr(), op->result_opr()); | |
| 553 break; | |
| 554 | |
| 555 case lir_unpack64: | |
| 556 unpack64(op->in_opr(), op->result_opr()); | |
| 557 break; | |
| 558 #endif | |
| 559 | |
|
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560 case lir_unwind: |
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561 unwind_op(op->in_opr()); |
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562 break; |
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563 |
| 0 | 564 default: |
| 565 Unimplemented(); | |
| 566 break; | |
| 567 } | |
| 568 } | |
| 569 | |
| 570 | |
| 571 void LIR_Assembler::emit_op0(LIR_Op0* op) { | |
| 572 switch (op->code()) { | |
| 573 case lir_word_align: { | |
| 574 while (code_offset() % BytesPerWord != 0) { | |
| 575 _masm->nop(); | |
| 576 } | |
| 577 break; | |
| 578 } | |
| 579 | |
| 580 case lir_nop: | |
| 581 assert(op->info() == NULL, "not supported"); | |
| 582 _masm->nop(); | |
| 583 break; | |
| 584 | |
| 585 case lir_label: | |
| 586 Unimplemented(); | |
| 587 break; | |
| 588 | |
| 589 case lir_build_frame: | |
| 590 build_frame(); | |
| 591 break; | |
| 592 | |
| 593 case lir_std_entry: | |
| 594 // init offsets | |
| 595 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
| 596 _masm->align(CodeEntryAlignment); | |
| 597 if (needs_icache(compilation()->method())) { | |
| 598 check_icache(); | |
| 599 } | |
| 600 offsets()->set_value(CodeOffsets::Verified_Entry, _masm->offset()); | |
| 601 _masm->verified_entry(); | |
| 602 build_frame(); | |
| 603 offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset()); | |
| 604 break; | |
| 605 | |
| 606 case lir_osr_entry: | |
| 607 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset()); | |
| 608 osr_entry(); | |
| 609 break; | |
| 610 | |
| 611 case lir_24bit_FPU: | |
| 612 set_24bit_FPU(); | |
| 613 break; | |
| 614 | |
| 615 case lir_reset_FPU: | |
| 616 reset_FPU(); | |
| 617 break; | |
| 618 | |
| 619 case lir_breakpoint: | |
| 620 breakpoint(); | |
| 621 break; | |
| 622 | |
| 623 case lir_fpop_raw: | |
| 624 fpop(); | |
| 625 break; | |
| 626 | |
| 627 case lir_membar: | |
| 628 membar(); | |
| 629 break; | |
| 630 | |
| 631 case lir_membar_acquire: | |
| 632 membar_acquire(); | |
| 633 break; | |
| 634 | |
| 635 case lir_membar_release: | |
| 636 membar_release(); | |
| 637 break; | |
| 638 | |
| 639 case lir_get_thread: | |
| 640 get_thread(op->result_opr()); | |
| 641 break; | |
| 642 | |
| 643 default: | |
| 644 ShouldNotReachHere(); | |
| 645 break; | |
| 646 } | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void LIR_Assembler::emit_op2(LIR_Op2* op) { | |
| 651 switch (op->code()) { | |
| 652 case lir_cmp: | |
| 653 if (op->info() != NULL) { | |
| 654 assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(), | |
| 655 "shouldn't be codeemitinfo for non-address operands"); | |
| 656 add_debug_info_for_null_check_here(op->info()); // exception possible | |
| 657 } | |
| 658 comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op); | |
| 659 break; | |
| 660 | |
| 661 case lir_cmp_l2i: | |
| 662 case lir_cmp_fd2i: | |
| 663 case lir_ucmp_fd2i: | |
| 664 comp_fl2i(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); | |
| 665 break; | |
| 666 | |
| 667 case lir_cmove: | |
| 668 cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr()); | |
| 669 break; | |
| 670 | |
| 671 case lir_shl: | |
| 672 case lir_shr: | |
| 673 case lir_ushr: | |
| 674 if (op->in_opr2()->is_constant()) { | |
| 675 shift_op(op->code(), op->in_opr1(), op->in_opr2()->as_constant_ptr()->as_jint(), op->result_opr()); | |
| 676 } else { | |
| 677 shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp_opr()); | |
| 678 } | |
| 679 break; | |
| 680 | |
| 681 case lir_add: | |
| 682 case lir_sub: | |
| 683 case lir_mul: | |
| 684 case lir_mul_strictfp: | |
| 685 case lir_div: | |
| 686 case lir_div_strictfp: | |
| 687 case lir_rem: | |
| 688 assert(op->fpu_pop_count() < 2, ""); | |
| 689 arith_op( | |
| 690 op->code(), | |
| 691 op->in_opr1(), | |
| 692 op->in_opr2(), | |
| 693 op->result_opr(), | |
| 694 op->info(), | |
| 695 op->fpu_pop_count() == 1); | |
| 696 break; | |
| 697 | |
| 698 case lir_abs: | |
| 699 case lir_sqrt: | |
| 700 case lir_sin: | |
| 701 case lir_tan: | |
| 702 case lir_cos: | |
| 703 case lir_log: | |
| 704 case lir_log10: | |
| 705 intrinsic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op); | |
| 706 break; | |
| 707 | |
| 708 case lir_logic_and: | |
| 709 case lir_logic_or: | |
| 710 case lir_logic_xor: | |
| 711 logic_op( | |
| 712 op->code(), | |
| 713 op->in_opr1(), | |
| 714 op->in_opr2(), | |
| 715 op->result_opr()); | |
| 716 break; | |
| 717 | |
| 718 case lir_throw: | |
|
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719 throw_op(op->in_opr1(), op->in_opr2(), op->info()); |
| 0 | 720 break; |
| 721 | |
| 722 default: | |
| 723 Unimplemented(); | |
| 724 break; | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 | |
| 729 void LIR_Assembler::build_frame() { | |
| 730 _masm->build_frame(initial_frame_size_in_bytes()); | |
| 731 } | |
| 732 | |
| 733 | |
| 734 void LIR_Assembler::roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack) { | |
| 735 assert((src->is_single_fpu() && dest->is_single_stack()) || | |
| 736 (src->is_double_fpu() && dest->is_double_stack()), | |
| 737 "round_fp: rounds register -> stack location"); | |
| 738 | |
| 739 reg2stack (src, dest, src->type(), pop_fpu_stack); | |
| 740 } | |
| 741 | |
| 742 | |
| 743 void LIR_Assembler::move_op(LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned) { | |
| 744 if (src->is_register()) { | |
| 745 if (dest->is_register()) { | |
| 746 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
| 747 reg2reg(src, dest); | |
| 748 } else if (dest->is_stack()) { | |
| 749 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
| 750 reg2stack(src, dest, type, pop_fpu_stack); | |
| 751 } else if (dest->is_address()) { | |
| 752 reg2mem(src, dest, type, patch_code, info, pop_fpu_stack, unaligned); | |
| 753 } else { | |
| 754 ShouldNotReachHere(); | |
| 755 } | |
| 756 | |
| 757 } else if (src->is_stack()) { | |
| 758 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
| 759 if (dest->is_register()) { | |
| 760 stack2reg(src, dest, type); | |
| 761 } else if (dest->is_stack()) { | |
| 762 stack2stack(src, dest, type); | |
| 763 } else { | |
| 764 ShouldNotReachHere(); | |
| 765 } | |
| 766 | |
| 767 } else if (src->is_constant()) { | |
| 768 if (dest->is_register()) { | |
| 769 const2reg(src, dest, patch_code, info); // patching is possible | |
| 770 } else if (dest->is_stack()) { | |
| 771 assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here"); | |
| 772 const2stack(src, dest); | |
| 773 } else if (dest->is_address()) { | |
| 774 assert(patch_code == lir_patch_none, "no patching allowed here"); | |
| 775 const2mem(src, dest, type, info); | |
| 776 } else { | |
| 777 ShouldNotReachHere(); | |
| 778 } | |
| 779 | |
| 780 } else if (src->is_address()) { | |
| 781 mem2reg(src, dest, type, patch_code, info, unaligned); | |
| 782 | |
| 783 } else { | |
| 784 ShouldNotReachHere(); | |
| 785 } | |
| 786 } | |
| 787 | |
| 788 | |
| 789 void LIR_Assembler::verify_oop_map(CodeEmitInfo* info) { | |
| 790 #ifndef PRODUCT | |
| 791 if (VerifyOopMaps || VerifyOops) { | |
| 792 bool v = VerifyOops; | |
| 793 VerifyOops = true; | |
| 794 OopMapStream s(info->oop_map()); | |
| 795 while (!s.is_done()) { | |
| 796 OopMapValue v = s.current(); | |
| 797 if (v.is_oop()) { | |
| 798 VMReg r = v.reg(); | |
| 799 if (!r->is_stack()) { | |
| 800 stringStream st; | |
| 801 st.print("bad oop %s at %d", r->as_Register()->name(), _masm->offset()); | |
| 802 #ifdef SPARC | |
| 803 _masm->_verify_oop(r->as_Register(), strdup(st.as_string()), __FILE__, __LINE__); | |
| 804 #else | |
| 805 _masm->verify_oop(r->as_Register()); | |
| 806 #endif | |
| 807 } else { | |
| 808 _masm->verify_stack_oop(r->reg2stack() * VMRegImpl::stack_slot_size); | |
| 809 } | |
| 810 } | |
| 811 s.next(); | |
| 812 } | |
| 813 VerifyOops = v; | |
| 814 } | |
| 815 #endif | |
| 816 } |