1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/c1/c1_LIRAssembler.cpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,794 @@
1.4 +/*
1.5 + * Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +# include "incls/_precompiled.incl"
1.29 +# include "incls/_c1_LIRAssembler.cpp.incl"
1.30 +
1.31 +
1.32 +void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) {
1.33 + // we must have enough patching space so that call can be inserted
1.34 + while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeCall::instruction_size) {
1.35 + _masm->nop();
1.36 + }
1.37 + patch->install(_masm, patch_code, obj, info);
1.38 + append_patching_stub(patch);
1.39 +
1.40 +#ifdef ASSERT
1.41 + Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->bci());
1.42 + if (patch->id() == PatchingStub::access_field_id) {
1.43 + switch (code) {
1.44 + case Bytecodes::_putstatic:
1.45 + case Bytecodes::_getstatic:
1.46 + case Bytecodes::_putfield:
1.47 + case Bytecodes::_getfield:
1.48 + break;
1.49 + default:
1.50 + ShouldNotReachHere();
1.51 + }
1.52 + } else if (patch->id() == PatchingStub::load_klass_id) {
1.53 + switch (code) {
1.54 + case Bytecodes::_putstatic:
1.55 + case Bytecodes::_getstatic:
1.56 + case Bytecodes::_new:
1.57 + case Bytecodes::_anewarray:
1.58 + case Bytecodes::_multianewarray:
1.59 + case Bytecodes::_instanceof:
1.60 + case Bytecodes::_checkcast:
1.61 + case Bytecodes::_ldc:
1.62 + case Bytecodes::_ldc_w:
1.63 + break;
1.64 + default:
1.65 + ShouldNotReachHere();
1.66 + }
1.67 + } else {
1.68 + ShouldNotReachHere();
1.69 + }
1.70 +#endif
1.71 +}
1.72 +
1.73 +
1.74 +//---------------------------------------------------------------
1.75 +
1.76 +
1.77 +LIR_Assembler::LIR_Assembler(Compilation* c):
1.78 + _compilation(c)
1.79 + , _masm(c->masm())
1.80 + , _frame_map(c->frame_map())
1.81 + , _current_block(NULL)
1.82 + , _pending_non_safepoint(NULL)
1.83 + , _pending_non_safepoint_offset(0)
1.84 +{
1.85 + _slow_case_stubs = new CodeStubList();
1.86 +}
1.87 +
1.88 +
1.89 +LIR_Assembler::~LIR_Assembler() {
1.90 +}
1.91 +
1.92 +
1.93 +void LIR_Assembler::append_patching_stub(PatchingStub* stub) {
1.94 + _slow_case_stubs->append(stub);
1.95 +}
1.96 +
1.97 +
1.98 +void LIR_Assembler::check_codespace() {
1.99 + CodeSection* cs = _masm->code_section();
1.100 + if (cs->remaining() < (int)(1*K)) {
1.101 + BAILOUT("CodeBuffer overflow");
1.102 + }
1.103 +}
1.104 +
1.105 +
1.106 +void LIR_Assembler::emit_code_stub(CodeStub* stub) {
1.107 + _slow_case_stubs->append(stub);
1.108 +}
1.109 +
1.110 +void LIR_Assembler::emit_stubs(CodeStubList* stub_list) {
1.111 + for (int m = 0; m < stub_list->length(); m++) {
1.112 + CodeStub* s = (*stub_list)[m];
1.113 +
1.114 + check_codespace();
1.115 + CHECK_BAILOUT();
1.116 +
1.117 +#ifndef PRODUCT
1.118 + if (CommentedAssembly) {
1.119 + stringStream st;
1.120 + s->print_name(&st);
1.121 + st.print(" slow case");
1.122 + _masm->block_comment(st.as_string());
1.123 + }
1.124 +#endif
1.125 + s->emit_code(this);
1.126 +#ifdef ASSERT
1.127 + s->assert_no_unbound_labels();
1.128 +#endif
1.129 + }
1.130 +}
1.131 +
1.132 +
1.133 +void LIR_Assembler::emit_slow_case_stubs() {
1.134 + emit_stubs(_slow_case_stubs);
1.135 +}
1.136 +
1.137 +
1.138 +bool LIR_Assembler::needs_icache(ciMethod* method) const {
1.139 + return !method->is_static();
1.140 +}
1.141 +
1.142 +
1.143 +int LIR_Assembler::code_offset() const {
1.144 + return _masm->offset();
1.145 +}
1.146 +
1.147 +
1.148 +address LIR_Assembler::pc() const {
1.149 + return _masm->pc();
1.150 +}
1.151 +
1.152 +
1.153 +void LIR_Assembler::emit_exception_entries(ExceptionInfoList* info_list) {
1.154 + for (int i = 0; i < info_list->length(); i++) {
1.155 + XHandlers* handlers = info_list->at(i)->exception_handlers();
1.156 +
1.157 + for (int j = 0; j < handlers->length(); j++) {
1.158 + XHandler* handler = handlers->handler_at(j);
1.159 + assert(handler->lir_op_id() != -1, "handler not processed by LinearScan");
1.160 + assert(handler->entry_code() == NULL ||
1.161 + handler->entry_code()->instructions_list()->last()->code() == lir_branch ||
1.162 + handler->entry_code()->instructions_list()->last()->code() == lir_delay_slot, "last operation must be branch");
1.163 +
1.164 + if (handler->entry_pco() == -1) {
1.165 + // entry code not emitted yet
1.166 + if (handler->entry_code() != NULL && handler->entry_code()->instructions_list()->length() > 1) {
1.167 + handler->set_entry_pco(code_offset());
1.168 + if (CommentedAssembly) {
1.169 + _masm->block_comment("Exception adapter block");
1.170 + }
1.171 + emit_lir_list(handler->entry_code());
1.172 + } else {
1.173 + handler->set_entry_pco(handler->entry_block()->exception_handler_pco());
1.174 + }
1.175 +
1.176 + assert(handler->entry_pco() != -1, "must be set now");
1.177 + }
1.178 + }
1.179 + }
1.180 +}
1.181 +
1.182 +
1.183 +void LIR_Assembler::emit_code(BlockList* hir) {
1.184 + if (PrintLIR) {
1.185 + print_LIR(hir);
1.186 + }
1.187 +
1.188 + int n = hir->length();
1.189 + for (int i = 0; i < n; i++) {
1.190 + emit_block(hir->at(i));
1.191 + CHECK_BAILOUT();
1.192 + }
1.193 +
1.194 + flush_debug_info(code_offset());
1.195 +
1.196 + DEBUG_ONLY(check_no_unbound_labels());
1.197 +}
1.198 +
1.199 +
1.200 +void LIR_Assembler::emit_block(BlockBegin* block) {
1.201 + if (block->is_set(BlockBegin::backward_branch_target_flag)) {
1.202 + align_backward_branch_target();
1.203 + }
1.204 +
1.205 + // if this block is the start of an exception handler, record the
1.206 + // PC offset of the first instruction for later construction of
1.207 + // the ExceptionHandlerTable
1.208 + if (block->is_set(BlockBegin::exception_entry_flag)) {
1.209 + block->set_exception_handler_pco(code_offset());
1.210 + }
1.211 +
1.212 +#ifndef PRODUCT
1.213 + if (PrintLIRWithAssembly) {
1.214 + // don't print Phi's
1.215 + InstructionPrinter ip(false);
1.216 + block->print(ip);
1.217 + }
1.218 +#endif /* PRODUCT */
1.219 +
1.220 + assert(block->lir() != NULL, "must have LIR");
1.221 + IA32_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed"));
1.222 +
1.223 +#ifndef PRODUCT
1.224 + if (CommentedAssembly) {
1.225 + stringStream st;
1.226 + st.print_cr(" block B%d [%d, %d]", block->block_id(), block->bci(), block->end()->bci());
1.227 + _masm->block_comment(st.as_string());
1.228 + }
1.229 +#endif
1.230 +
1.231 + emit_lir_list(block->lir());
1.232 +
1.233 + IA32_ONLY(assert(_masm->rsp_offset() == 0, "frame size should be fixed"));
1.234 +}
1.235 +
1.236 +
1.237 +void LIR_Assembler::emit_lir_list(LIR_List* list) {
1.238 + peephole(list);
1.239 +
1.240 + int n = list->length();
1.241 + for (int i = 0; i < n; i++) {
1.242 + LIR_Op* op = list->at(i);
1.243 +
1.244 + check_codespace();
1.245 + CHECK_BAILOUT();
1.246 +
1.247 +#ifndef PRODUCT
1.248 + if (CommentedAssembly) {
1.249 + // Don't record out every op since that's too verbose. Print
1.250 + // branches since they include block and stub names. Also print
1.251 + // patching moves since they generate funny looking code.
1.252 + if (op->code() == lir_branch ||
1.253 + (op->code() == lir_move && op->as_Op1()->patch_code() != lir_patch_none)) {
1.254 + stringStream st;
1.255 + op->print_on(&st);
1.256 + _masm->block_comment(st.as_string());
1.257 + }
1.258 + }
1.259 + if (PrintLIRWithAssembly) {
1.260 + // print out the LIR operation followed by the resulting assembly
1.261 + list->at(i)->print(); tty->cr();
1.262 + }
1.263 +#endif /* PRODUCT */
1.264 +
1.265 + op->emit_code(this);
1.266 +
1.267 + if (compilation()->debug_info_recorder()->recording_non_safepoints()) {
1.268 + process_debug_info(op);
1.269 + }
1.270 +
1.271 +#ifndef PRODUCT
1.272 + if (PrintLIRWithAssembly) {
1.273 + _masm->code()->decode();
1.274 + }
1.275 +#endif /* PRODUCT */
1.276 + }
1.277 +}
1.278 +
1.279 +#ifdef ASSERT
1.280 +void LIR_Assembler::check_no_unbound_labels() {
1.281 + CHECK_BAILOUT();
1.282 +
1.283 + for (int i = 0; i < _branch_target_blocks.length() - 1; i++) {
1.284 + if (!_branch_target_blocks.at(i)->label()->is_bound()) {
1.285 + tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id());
1.286 + assert(false, "unbound label");
1.287 + }
1.288 + }
1.289 +}
1.290 +#endif
1.291 +
1.292 +//----------------------------------debug info--------------------------------
1.293 +
1.294 +
1.295 +void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) {
1.296 + _masm->code_section()->relocate(pc(), relocInfo::poll_type);
1.297 + int pc_offset = code_offset();
1.298 + flush_debug_info(pc_offset);
1.299 + info->record_debug_info(compilation()->debug_info_recorder(), pc_offset);
1.300 + if (info->exception_handlers() != NULL) {
1.301 + compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers());
1.302 + }
1.303 +}
1.304 +
1.305 +
1.306 +void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo) {
1.307 + flush_debug_info(pc_offset);
1.308 + cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset);
1.309 + if (cinfo->exception_handlers() != NULL) {
1.310 + compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers());
1.311 + }
1.312 +}
1.313 +
1.314 +static ValueStack* debug_info(Instruction* ins) {
1.315 + StateSplit* ss = ins->as_StateSplit();
1.316 + if (ss != NULL) return ss->state();
1.317 + return ins->lock_stack();
1.318 +}
1.319 +
1.320 +void LIR_Assembler::process_debug_info(LIR_Op* op) {
1.321 + Instruction* src = op->source();
1.322 + if (src == NULL) return;
1.323 + int pc_offset = code_offset();
1.324 + if (_pending_non_safepoint == src) {
1.325 + _pending_non_safepoint_offset = pc_offset;
1.326 + return;
1.327 + }
1.328 + ValueStack* vstack = debug_info(src);
1.329 + if (vstack == NULL) return;
1.330 + if (_pending_non_safepoint != NULL) {
1.331 + // Got some old debug info. Get rid of it.
1.332 + if (_pending_non_safepoint->bci() == src->bci() &&
1.333 + debug_info(_pending_non_safepoint) == vstack) {
1.334 + _pending_non_safepoint_offset = pc_offset;
1.335 + return;
1.336 + }
1.337 + if (_pending_non_safepoint_offset < pc_offset) {
1.338 + record_non_safepoint_debug_info();
1.339 + }
1.340 + _pending_non_safepoint = NULL;
1.341 + }
1.342 + // Remember the debug info.
1.343 + if (pc_offset > compilation()->debug_info_recorder()->last_pc_offset()) {
1.344 + _pending_non_safepoint = src;
1.345 + _pending_non_safepoint_offset = pc_offset;
1.346 + }
1.347 +}
1.348 +
1.349 +// Index caller states in s, where 0 is the oldest, 1 its callee, etc.
1.350 +// Return NULL if n is too large.
1.351 +// Returns the caller_bci for the next-younger state, also.
1.352 +static ValueStack* nth_oldest(ValueStack* s, int n, int& bci_result) {
1.353 + ValueStack* t = s;
1.354 + for (int i = 0; i < n; i++) {
1.355 + if (t == NULL) break;
1.356 + t = t->caller_state();
1.357 + }
1.358 + if (t == NULL) return NULL;
1.359 + for (;;) {
1.360 + ValueStack* tc = t->caller_state();
1.361 + if (tc == NULL) return s;
1.362 + t = tc;
1.363 + bci_result = s->scope()->caller_bci();
1.364 + s = s->caller_state();
1.365 + }
1.366 +}
1.367 +
1.368 +void LIR_Assembler::record_non_safepoint_debug_info() {
1.369 + int pc_offset = _pending_non_safepoint_offset;
1.370 + ValueStack* vstack = debug_info(_pending_non_safepoint);
1.371 + int bci = _pending_non_safepoint->bci();
1.372 +
1.373 + DebugInformationRecorder* debug_info = compilation()->debug_info_recorder();
1.374 + assert(debug_info->recording_non_safepoints(), "sanity");
1.375 +
1.376 + debug_info->add_non_safepoint(pc_offset);
1.377 +
1.378 + // Visit scopes from oldest to youngest.
1.379 + for (int n = 0; ; n++) {
1.380 + int s_bci = bci;
1.381 + ValueStack* s = nth_oldest(vstack, n, s_bci);
1.382 + if (s == NULL) break;
1.383 + IRScope* scope = s->scope();
1.384 + debug_info->describe_scope(pc_offset, scope->method(), s_bci);
1.385 + }
1.386 +
1.387 + debug_info->end_non_safepoint(pc_offset);
1.388 +}
1.389 +
1.390 +
1.391 +void LIR_Assembler::add_debug_info_for_null_check_here(CodeEmitInfo* cinfo) {
1.392 + add_debug_info_for_null_check(code_offset(), cinfo);
1.393 +}
1.394 +
1.395 +void LIR_Assembler::add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo) {
1.396 + ImplicitNullCheckStub* stub = new ImplicitNullCheckStub(pc_offset, cinfo);
1.397 + emit_code_stub(stub);
1.398 +}
1.399 +
1.400 +void LIR_Assembler::add_debug_info_for_div0_here(CodeEmitInfo* info) {
1.401 + add_debug_info_for_div0(code_offset(), info);
1.402 +}
1.403 +
1.404 +void LIR_Assembler::add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo) {
1.405 + DivByZeroStub* stub = new DivByZeroStub(pc_offset, cinfo);
1.406 + emit_code_stub(stub);
1.407 +}
1.408 +
1.409 +void LIR_Assembler::emit_rtcall(LIR_OpRTCall* op) {
1.410 + rt_call(op->result_opr(), op->addr(), op->arguments(), op->tmp(), op->info());
1.411 +}
1.412 +
1.413 +
1.414 +void LIR_Assembler::emit_call(LIR_OpJavaCall* op) {
1.415 + verify_oop_map(op->info());
1.416 +
1.417 + if (os::is_MP()) {
1.418 + // must align calls sites, otherwise they can't be updated atomically on MP hardware
1.419 + align_call(op->code());
1.420 + }
1.421 +
1.422 + // emit the static call stub stuff out of line
1.423 + emit_static_call_stub();
1.424 +
1.425 + switch (op->code()) {
1.426 + case lir_static_call:
1.427 + call(op->addr(), relocInfo::static_call_type, op->info());
1.428 + break;
1.429 + case lir_optvirtual_call:
1.430 + call(op->addr(), relocInfo::opt_virtual_call_type, op->info());
1.431 + break;
1.432 + case lir_icvirtual_call:
1.433 + ic_call(op->addr(), op->info());
1.434 + break;
1.435 + case lir_virtual_call:
1.436 + vtable_call(op->vtable_offset(), op->info());
1.437 + break;
1.438 + default: ShouldNotReachHere();
1.439 + }
1.440 +#if defined(IA32) && defined(TIERED)
1.441 + // C2 leave fpu stack dirty clean it
1.442 + if (UseSSE < 2) {
1.443 + int i;
1.444 + for ( i = 1; i <= 7 ; i++ ) {
1.445 + ffree(i);
1.446 + }
1.447 + if (!op->result_opr()->is_float_kind()) {
1.448 + ffree(0);
1.449 + }
1.450 + }
1.451 +#endif // IA32 && TIERED
1.452 +}
1.453 +
1.454 +
1.455 +void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) {
1.456 + _masm->bind (*(op->label()));
1.457 +}
1.458 +
1.459 +
1.460 +void LIR_Assembler::emit_op1(LIR_Op1* op) {
1.461 + switch (op->code()) {
1.462 + case lir_move:
1.463 + if (op->move_kind() == lir_move_volatile) {
1.464 + assert(op->patch_code() == lir_patch_none, "can't patch volatiles");
1.465 + volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info());
1.466 + } else {
1.467 + move_op(op->in_opr(), op->result_opr(), op->type(),
1.468 + op->patch_code(), op->info(), op->pop_fpu_stack(), op->move_kind() == lir_move_unaligned);
1.469 + }
1.470 + break;
1.471 +
1.472 + case lir_prefetchr:
1.473 + prefetchr(op->in_opr());
1.474 + break;
1.475 +
1.476 + case lir_prefetchw:
1.477 + prefetchw(op->in_opr());
1.478 + break;
1.479 +
1.480 + case lir_roundfp: {
1.481 + LIR_OpRoundFP* round_op = op->as_OpRoundFP();
1.482 + roundfp_op(round_op->in_opr(), round_op->tmp(), round_op->result_opr(), round_op->pop_fpu_stack());
1.483 + break;
1.484 + }
1.485 +
1.486 + case lir_return:
1.487 + return_op(op->in_opr());
1.488 + break;
1.489 +
1.490 + case lir_safepoint:
1.491 + if (compilation()->debug_info_recorder()->last_pc_offset() == code_offset()) {
1.492 + _masm->nop();
1.493 + }
1.494 + safepoint_poll(op->in_opr(), op->info());
1.495 + break;
1.496 +
1.497 + case lir_fxch:
1.498 + fxch(op->in_opr()->as_jint());
1.499 + break;
1.500 +
1.501 + case lir_fld:
1.502 + fld(op->in_opr()->as_jint());
1.503 + break;
1.504 +
1.505 + case lir_ffree:
1.506 + ffree(op->in_opr()->as_jint());
1.507 + break;
1.508 +
1.509 + case lir_branch:
1.510 + break;
1.511 +
1.512 + case lir_push:
1.513 + push(op->in_opr());
1.514 + break;
1.515 +
1.516 + case lir_pop:
1.517 + pop(op->in_opr());
1.518 + break;
1.519 +
1.520 + case lir_neg:
1.521 + negate(op->in_opr(), op->result_opr());
1.522 + break;
1.523 +
1.524 + case lir_leal:
1.525 + leal(op->in_opr(), op->result_opr());
1.526 + break;
1.527 +
1.528 + case lir_null_check:
1.529 + if (GenerateCompilerNullChecks) {
1.530 + add_debug_info_for_null_check_here(op->info());
1.531 +
1.532 + if (op->in_opr()->is_single_cpu()) {
1.533 + _masm->null_check(op->in_opr()->as_register());
1.534 + } else {
1.535 + Unimplemented();
1.536 + }
1.537 + }
1.538 + break;
1.539 +
1.540 + case lir_monaddr:
1.541 + monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr());
1.542 + break;
1.543 +
1.544 + default:
1.545 + Unimplemented();
1.546 + break;
1.547 + }
1.548 +}
1.549 +
1.550 +
1.551 +void LIR_Assembler::emit_op0(LIR_Op0* op) {
1.552 + switch (op->code()) {
1.553 + case lir_word_align: {
1.554 + while (code_offset() % BytesPerWord != 0) {
1.555 + _masm->nop();
1.556 + }
1.557 + break;
1.558 + }
1.559 +
1.560 + case lir_nop:
1.561 + assert(op->info() == NULL, "not supported");
1.562 + _masm->nop();
1.563 + break;
1.564 +
1.565 + case lir_label:
1.566 + Unimplemented();
1.567 + break;
1.568 +
1.569 + case lir_build_frame:
1.570 + build_frame();
1.571 + break;
1.572 +
1.573 + case lir_std_entry:
1.574 + // init offsets
1.575 + offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
1.576 + _masm->align(CodeEntryAlignment);
1.577 + if (needs_icache(compilation()->method())) {
1.578 + check_icache();
1.579 + }
1.580 + offsets()->set_value(CodeOffsets::Verified_Entry, _masm->offset());
1.581 + _masm->verified_entry();
1.582 + build_frame();
1.583 + offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset());
1.584 + break;
1.585 +
1.586 + case lir_osr_entry:
1.587 + offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
1.588 + osr_entry();
1.589 + break;
1.590 +
1.591 + case lir_24bit_FPU:
1.592 + set_24bit_FPU();
1.593 + break;
1.594 +
1.595 + case lir_reset_FPU:
1.596 + reset_FPU();
1.597 + break;
1.598 +
1.599 + case lir_breakpoint:
1.600 + breakpoint();
1.601 + break;
1.602 +
1.603 + case lir_fpop_raw:
1.604 + fpop();
1.605 + break;
1.606 +
1.607 + case lir_membar:
1.608 + membar();
1.609 + break;
1.610 +
1.611 + case lir_membar_acquire:
1.612 + membar_acquire();
1.613 + break;
1.614 +
1.615 + case lir_membar_release:
1.616 + membar_release();
1.617 + break;
1.618 +
1.619 + case lir_get_thread:
1.620 + get_thread(op->result_opr());
1.621 + break;
1.622 +
1.623 + default:
1.624 + ShouldNotReachHere();
1.625 + break;
1.626 + }
1.627 +}
1.628 +
1.629 +
1.630 +void LIR_Assembler::emit_op2(LIR_Op2* op) {
1.631 + switch (op->code()) {
1.632 + case lir_cmp:
1.633 + if (op->info() != NULL) {
1.634 + assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(),
1.635 + "shouldn't be codeemitinfo for non-address operands");
1.636 + add_debug_info_for_null_check_here(op->info()); // exception possible
1.637 + }
1.638 + comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op);
1.639 + break;
1.640 +
1.641 + case lir_cmp_l2i:
1.642 + case lir_cmp_fd2i:
1.643 + case lir_ucmp_fd2i:
1.644 + comp_fl2i(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op);
1.645 + break;
1.646 +
1.647 + case lir_cmove:
1.648 + cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr());
1.649 + break;
1.650 +
1.651 + case lir_shl:
1.652 + case lir_shr:
1.653 + case lir_ushr:
1.654 + if (op->in_opr2()->is_constant()) {
1.655 + shift_op(op->code(), op->in_opr1(), op->in_opr2()->as_constant_ptr()->as_jint(), op->result_opr());
1.656 + } else {
1.657 + shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp_opr());
1.658 + }
1.659 + break;
1.660 +
1.661 + case lir_add:
1.662 + case lir_sub:
1.663 + case lir_mul:
1.664 + case lir_mul_strictfp:
1.665 + case lir_div:
1.666 + case lir_div_strictfp:
1.667 + case lir_rem:
1.668 + assert(op->fpu_pop_count() < 2, "");
1.669 + arith_op(
1.670 + op->code(),
1.671 + op->in_opr1(),
1.672 + op->in_opr2(),
1.673 + op->result_opr(),
1.674 + op->info(),
1.675 + op->fpu_pop_count() == 1);
1.676 + break;
1.677 +
1.678 + case lir_abs:
1.679 + case lir_sqrt:
1.680 + case lir_sin:
1.681 + case lir_tan:
1.682 + case lir_cos:
1.683 + case lir_log:
1.684 + case lir_log10:
1.685 + intrinsic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op);
1.686 + break;
1.687 +
1.688 + case lir_logic_and:
1.689 + case lir_logic_or:
1.690 + case lir_logic_xor:
1.691 + logic_op(
1.692 + op->code(),
1.693 + op->in_opr1(),
1.694 + op->in_opr2(),
1.695 + op->result_opr());
1.696 + break;
1.697 +
1.698 + case lir_throw:
1.699 + case lir_unwind:
1.700 + throw_op(op->in_opr1(), op->in_opr2(), op->info(), op->code() == lir_unwind);
1.701 + break;
1.702 +
1.703 + default:
1.704 + Unimplemented();
1.705 + break;
1.706 + }
1.707 +}
1.708 +
1.709 +
1.710 +void LIR_Assembler::build_frame() {
1.711 + _masm->build_frame(initial_frame_size_in_bytes());
1.712 +}
1.713 +
1.714 +
1.715 +void LIR_Assembler::roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack) {
1.716 + assert((src->is_single_fpu() && dest->is_single_stack()) ||
1.717 + (src->is_double_fpu() && dest->is_double_stack()),
1.718 + "round_fp: rounds register -> stack location");
1.719 +
1.720 + reg2stack (src, dest, src->type(), pop_fpu_stack);
1.721 +}
1.722 +
1.723 +
1.724 +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) {
1.725 + if (src->is_register()) {
1.726 + if (dest->is_register()) {
1.727 + assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here");
1.728 + reg2reg(src, dest);
1.729 + } else if (dest->is_stack()) {
1.730 + assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here");
1.731 + reg2stack(src, dest, type, pop_fpu_stack);
1.732 + } else if (dest->is_address()) {
1.733 + reg2mem(src, dest, type, patch_code, info, pop_fpu_stack, unaligned);
1.734 + } else {
1.735 + ShouldNotReachHere();
1.736 + }
1.737 +
1.738 + } else if (src->is_stack()) {
1.739 + assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here");
1.740 + if (dest->is_register()) {
1.741 + stack2reg(src, dest, type);
1.742 + } else if (dest->is_stack()) {
1.743 + stack2stack(src, dest, type);
1.744 + } else {
1.745 + ShouldNotReachHere();
1.746 + }
1.747 +
1.748 + } else if (src->is_constant()) {
1.749 + if (dest->is_register()) {
1.750 + const2reg(src, dest, patch_code, info); // patching is possible
1.751 + } else if (dest->is_stack()) {
1.752 + assert(patch_code == lir_patch_none && info == NULL, "no patching and info allowed here");
1.753 + const2stack(src, dest);
1.754 + } else if (dest->is_address()) {
1.755 + assert(patch_code == lir_patch_none, "no patching allowed here");
1.756 + const2mem(src, dest, type, info);
1.757 + } else {
1.758 + ShouldNotReachHere();
1.759 + }
1.760 +
1.761 + } else if (src->is_address()) {
1.762 + mem2reg(src, dest, type, patch_code, info, unaligned);
1.763 +
1.764 + } else {
1.765 + ShouldNotReachHere();
1.766 + }
1.767 +}
1.768 +
1.769 +
1.770 +void LIR_Assembler::verify_oop_map(CodeEmitInfo* info) {
1.771 +#ifndef PRODUCT
1.772 + if (VerifyOopMaps || VerifyOops) {
1.773 + bool v = VerifyOops;
1.774 + VerifyOops = true;
1.775 + OopMapStream s(info->oop_map());
1.776 + while (!s.is_done()) {
1.777 + OopMapValue v = s.current();
1.778 + if (v.is_oop()) {
1.779 + VMReg r = v.reg();
1.780 + if (!r->is_stack()) {
1.781 + stringStream st;
1.782 + st.print("bad oop %s at %d", r->as_Register()->name(), _masm->offset());
1.783 +#ifdef SPARC
1.784 + _masm->_verify_oop(r->as_Register(), strdup(st.as_string()), __FILE__, __LINE__);
1.785 +#else
1.786 + _masm->verify_oop(r->as_Register());
1.787 +#endif
1.788 + } else {
1.789 + _masm->verify_stack_oop(r->reg2stack() * VMRegImpl::stack_slot_size);
1.790 + }
1.791 + }
1.792 + s.next();
1.793 + }
1.794 + VerifyOops = v;
1.795 + }
1.796 +#endif
1.797 +}
