144f0eee88ff00398ff7f715fab053374d808c90dSteve Block// Copyright 2011 the V8 project authors. All rights reserved. 23100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// Redistribution and use in source and binary forms, with or without 33100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// modification, are permitted provided that the following conditions are 43100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// met: 53100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// 63100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// * Redistributions of source code must retain the above copyright 73100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// notice, this list of conditions and the following disclaimer. 83100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// * Redistributions in binary form must reproduce the above 93100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// copyright notice, this list of conditions and the following 103100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// disclaimer in the documentation and/or other materials provided 113100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// with the distribution. 123100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// * Neither the name of Google Inc. nor the names of its 133100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// contributors may be used to endorse or promote products derived 143100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// from this software without specific prior written permission. 153100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// 163100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 283100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "v8.h" 293100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 3044f0eee88ff00398ff7f715fab053374d808c90dSteve Block#include "codegen.h" 3144f0eee88ff00398ff7f715fab053374d808c90dSteve Block#include "deoptimizer.h" 3244f0eee88ff00398ff7f715fab053374d808c90dSteve Block#include "full-codegen.h" 3344f0eee88ff00398ff7f715fab053374d808c90dSteve Block#include "safepoint-table.h" 34f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 353100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescunamespace v8 { 363100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescunamespace internal { 373100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 383100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 3944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockint Deoptimizer::patch_size() { 403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kCallInstructionSizeInWords = 4; 4144f0eee88ff00398ff7f715fab053374d808c90dSteve Block return kCallInstructionSizeInWords * Assembler::kInstrSize; 423100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu} 433100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 443100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 4544f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid Deoptimizer::DeoptimizeFunction(JSFunction* function) { 463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HandleScope scope; 473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch AssertNoAllocation no_allocation; 483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!function->IsOptimized()) return; 503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Get the optimized code. 523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Code* code = function->code(); 533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address code_start_address = code->instruction_start(); 543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Invalidate the relocation information, as it will become invalid by the 563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // code patching below, and is not needed any more. 573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->InvalidateRelocation(); 583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // For each LLazyBailout instruction insert a call to the corresponding 603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // deoptimization entry. 613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizationInputData* deopt_data = 623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizationInputData::cast(code->deoptimization_data()); 633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address prev_call_address = NULL; 653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < deopt_data->DeoptCount(); i++) { 673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (deopt_data->Pc(i)->value() == -1) continue; 683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address call_address = code_start_address + deopt_data->Pc(i)->value(); 693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address deopt_entry = GetDeoptimizationEntry(i, LAZY); 703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int call_size_in_bytes = MacroAssembler::CallSize(deopt_entry, 713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RelocInfo::NONE); 723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int call_size_in_words = call_size_in_bytes / Assembler::kInstrSize; 733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(call_size_in_bytes % Assembler::kInstrSize == 0); 743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(call_size_in_bytes <= patch_size()); 753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CodePatcher patcher(call_address, call_size_in_words); 763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch patcher.masm()->Call(deopt_entry, RelocInfo::NONE); 773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(prev_call_address == NULL || 783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch call_address >= prev_call_address + patch_size()); 793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(call_address + patch_size() <= code->instruction_end()); 803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch prev_call_address = call_address; 833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Isolate* isolate = code->GetIsolate(); 873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Add the deoptimizing code to the list. 893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizingCodeListNode* node = new DeoptimizingCodeListNode(code); 903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizerData* data = isolate->deoptimizer_data(); 913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch node->set_next(data->deoptimizing_code_list_); 923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch data->deoptimizing_code_list_ = node; 933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We might be in the middle of incremental marking with compaction. 953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Tell collector to treat this code object in a special way and 963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ignore all slots that might have been recorded on it. 973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch isolate->heap()->mark_compact_collector()->InvalidateCode(code); 983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set the code for the function to non-optimized version. 1003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch function->ReplaceCode(function->shared()->code()); 1013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 1033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF("[forced deoptimization: "); 1043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch function->PrintName(); 1053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" / %x]\n", reinterpret_cast<uint32_t>(function)); 1063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 1073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_print_code) { 1083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->PrintLn(); 1093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 1113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1123100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu} 1133100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 1143100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 1153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Deoptimizer::PatchStackCheckCodeAt(Code* unoptimized_code, 1163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address pc_after, 11744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Code* check_code, 11844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Code* replacement_code) { 1193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kInstrSize = Assembler::kInstrSize; 1203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // This structure comes from FullCodeGenerator::EmitStackCheck. 1213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The call of the stack guard check has the following form: 1223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // sltu at, sp, t0 / slt at, a3, zero_reg (in case of count based interrupts) 1233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // beq at, zero_reg, ok 1243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // lui t9, <stack guard address> upper 1253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ori t9, <stack guard address> lower 1263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // jalr t9 1273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // nop 1283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ----- pc_after points here 1293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Assembler::IsBeq(Assembler::instr_at(pc_after - 5 * kInstrSize))); 1313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Replace the sltu instruction with load-imm 1 to at, so beq is not taken. 1333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CodePatcher patcher(pc_after - 6 * kInstrSize, 1); 1343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch patcher.masm()->addiu(at, zero_reg, 1); 1353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Replace the stack check address in the load-immediate (lui/ori pair) 1373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // with the entry address of the replacement code. 1383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(reinterpret_cast<uint32_t>( 1393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::target_address_at(pc_after - 4 * kInstrSize)) == 1403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<uint32_t>(check_code->entry())); 1413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::set_target_address_at(pc_after - 4 * kInstrSize, 1423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch replacement_code->entry()); 1433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We patched the code to the following form: 1453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // addiu at, zero_reg, 1 1463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // beq at, zero_reg, ok ;; Not changed 1473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // lui t9, <on-stack replacement address> upper 1483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ori t9, <on-stack replacement address> lower 1493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // jalr t9 ;; Not changed 1503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // nop ;; Not changed 1513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ----- pc_after points here 1523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unoptimized_code->GetHeap()->incremental_marking()->RecordCodeTargetPatch( 1543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unoptimized_code, pc_after - 4 * kInstrSize, replacement_code); 1556ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Deoptimizer::RevertStackCheckCodeAt(Code* unoptimized_code, 1593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address pc_after, 16044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Code* check_code, 16144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Code* replacement_code) { 1623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Exact opposite of the function above. 1633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kInstrSize = Assembler::kInstrSize; 1643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Assembler::IsAddImmediate( 1653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::instr_at(pc_after - 6 * kInstrSize))); 1663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Assembler::IsBeq(Assembler::instr_at(pc_after - 5 * kInstrSize))); 1673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Restore the sltu instruction so beq can be taken again. 1693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CodePatcher patcher(pc_after - 6 * kInstrSize, 1); 1703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_count_based_interrupts) { 1713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch patcher.masm()->slt(at, a3, zero_reg); 1723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 1733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch patcher.masm()->sltu(at, sp, t0); 1743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Replace the on-stack replacement address in the load-immediate (lui/ori 1773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // pair) with the entry address of the normal stack-check code. 1783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(reinterpret_cast<uint32_t>( 1793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::target_address_at(pc_after - 4 * kInstrSize)) == 1803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<uint32_t>(replacement_code->entry())); 1813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::set_target_address_at(pc_after - 4 * kInstrSize, 1823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch check_code->entry()); 1833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch check_code->GetHeap()->incremental_marking()->RecordCodeTargetPatch( 1853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unoptimized_code, pc_after - 4 * kInstrSize, check_code); 1863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 1873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochstatic int LookupBailoutId(DeoptimizationInputData* data, unsigned ast_id) { 1903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ByteArray* translations = data->TranslationByteArray(); 1913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int length = data->DeoptCount(); 1923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < length; i++) { 1933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (static_cast<unsigned>(data->AstId(i)->value()) == ast_id) { 1943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch TranslationIterator it(translations, data->TranslationIndex(i)->value()); 1953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int value = it.Next(); 1963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Translation::BEGIN == static_cast<Translation::Opcode>(value)); 1973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read the number of frames. 1983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = it.Next(); 1993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (value == 1) return i; 2003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 2033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return -1; 2046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 20744f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid Deoptimizer::DoComputeOsrOutputFrame() { 2083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizationInputData* data = DeoptimizationInputData::cast( 2093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch optimized_code_->deoptimization_data()); 2103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned ast_id = data->OsrAstId()->value(); 2113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int bailout_id = LookupBailoutId(data, ast_id); 2133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned translation_index = data->TranslationIndex(bailout_id)->value(); 2143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ByteArray* translations = data->TranslationByteArray(); 2153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch TranslationIterator iterator(translations, translation_index); 2173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Translation::Opcode opcode = 2183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<Translation::Opcode>(iterator.Next()); 2193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Translation::BEGIN == opcode); 2203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(opcode); 2213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int count = iterator.Next(); 2223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch iterator.Skip(1); // Drop JS frame count. 2233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(count == 1); 2243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(count); 2253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch opcode = static_cast<Translation::Opcode>(iterator.Next()); 2273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(opcode); 2283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Translation::JS_FRAME == opcode); 2293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned node_id = iterator.Next(); 2303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(node_id); 2313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(node_id == ast_id); 2323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction* function = JSFunction::cast(ComputeLiteral(iterator.Next())); 2333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(function); 2343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(function == function_); 2353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height = iterator.Next(); 2363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height_in_bytes = height * kPointerSize; 2373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(height_in_bytes); 2383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned fixed_size = ComputeFixedSize(function_); 2403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned input_frame_size = input_->GetFrameSize(); 2413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(fixed_size + height_in_bytes == input_frame_size); 2423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned stack_slot_size = optimized_code_->stack_slots() * kPointerSize; 2443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned outgoing_height = data->ArgumentsStackHeight(bailout_id)->value(); 2453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned outgoing_size = outgoing_height * kPointerSize; 2463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_frame_size = fixed_size + stack_slot_size + outgoing_size; 2473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(outgoing_size == 0); // OSR does not happen in the middle of a call. 2483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_osr) { 2503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF("[on-stack replacement: begin 0x%08" V8PRIxPTR " ", 2513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<intptr_t>(function_)); 2523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch function_->PrintName(); 2533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" => node=%u, frame=%d->%d]\n", 2543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ast_id, 2553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_frame_size, 2563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame_size); 2573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // There's only one output frame in the OSR case. 2603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_count_ = 1; 2613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_ = new FrameDescription*[1]; 2623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0] = new(output_frame_size) FrameDescription( 2633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame_size, function_); 2643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetFrameType(StackFrame::JAVA_SCRIPT); 2653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Clear the incoming parameters in the optimized frame to avoid 2673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // confusing the garbage collector. 2683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_offset = output_frame_size - kPointerSize; 2693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int parameter_count = function_->shared()->formal_parameter_count() + 1; 2703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < parameter_count; ++i) { 2713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetFrameSlot(output_offset, 0); 2723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 2733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Translate the incoming parameters. This may overwrite some of the 2763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // incoming argument slots we've just cleared. 2773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int input_offset = input_frame_size - kPointerSize; 2783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool ok = true; 2793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int limit = input_offset - (parameter_count * kPointerSize); 2803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (ok && input_offset > limit) { 2813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ok = DoOsrTranslateCommand(&iterator, &input_offset); 2823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // There are no translation commands for the caller's pc and fp, the 2853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // context, and the function. Set them up explicitly. 2863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = StandardFrameConstants::kCallerPCOffset; 2873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ok && i >= StandardFrameConstants::kMarkerOffset; 2883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i -= kPointerSize) { 2893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t input_value = input_->GetFrameSlot(input_offset); 2903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_osr) { 2913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* name = "UNKNOWN"; 2923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (i) { 2933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case StandardFrameConstants::kCallerPCOffset: 2943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name = "caller's pc"; 2953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 2963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case StandardFrameConstants::kCallerFPOffset: 2973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name = "fp"; 2983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 2993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case StandardFrameConstants::kContextOffset: 3003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name = "context"; 3013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 3023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case StandardFrameConstants::kMarkerOffset: 3033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name = "function"; 3043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 3053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" [sp + %d] <- 0x%08x ; [sp + %d] (fixed part - %s)\n", 3073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset, 3083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_value, 3093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset, 3103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name); 3113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetFrameSlot(output_offset, input_->GetFrameSlot(input_offset)); 3143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= kPointerSize; 3153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 3163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Translate the rest of the frame. 3193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (ok && input_offset >= 0) { 3203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ok = DoOsrTranslateCommand(&iterator, &input_offset); 3213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If translation of any command failed, continue using the input frame. 3243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!ok) { 3253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch delete output_[0]; 3263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0] = input_; 3273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetPc(reinterpret_cast<uint32_t>(from_)); 3283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 3293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set up the frame pointer and the context pointer. 3303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetRegister(fp.code(), input_->GetRegister(fp.code())); 3313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetRegister(cp.code(), input_->GetRegister(cp.code())); 3323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned pc_offset = data->OsrPcOffset()->value(); 3343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t pc = reinterpret_cast<uint32_t>( 3353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch optimized_code_->entry() + pc_offset); 3363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetPc(pc); 3373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Code* continuation = isolate_->builtins()->builtin(Builtins::kNotifyOSR); 3393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[0]->SetContinuation( 3403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<uint32_t>(continuation->entry())); 3413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_osr) { 3433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF("[on-stack replacement translation %s: 0x%08" V8PRIxPTR " ", 3443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ok ? "finished" : "aborted", 3453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<intptr_t>(function)); 3463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch function->PrintName(); 3473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" => pc=0x%0x]\n", output_[0]->GetPc()); 3483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3493100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu} 3503100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 3513100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 3523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator, 3533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int frame_index) { 3543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next())); 3553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height = iterator->Next(); 3563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height_in_bytes = height * kPointerSize; 3573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 3583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes); 3593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize; 3623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_frame_size = height_in_bytes + fixed_frame_size; 3633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate and store the output frame description. 3653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FrameDescription* output_frame = 3663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new(output_frame_size) FrameDescription(output_frame_size, function); 3673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR); 3683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Arguments adaptor can not be topmost or bottommost. 3703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(frame_index > 0 && frame_index < output_count_ - 1); 3713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(output_[frame_index] == NULL); 3723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[frame_index] = output_frame; 3733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The top address of the frame is computed from the previous 3753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // frame's top and this frame's size. 3763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t top_address; 3773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address = output_[frame_index - 1]->GetTop() - output_frame_size; 3783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetTop(top_address); 3793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute the incoming parameter translation. 3813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int parameter_count = height; 3823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_offset = output_frame_size; 3833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < parameter_count; ++i) { 3843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 3853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DoTranslateCommand(iterator, frame_index, output_offset); 3863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read caller's PC from the previous frame. 3893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 3903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t callers_pc = output_[frame_index - 1]->GetPc(); 3913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, callers_pc); 3923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 3933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n", 3943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, callers_pc); 3953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read caller's FP from the previous frame, and set this frame's FP. 3983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 3993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t value = output_[frame_index - 1]->GetFp(); 4003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 4013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t fp_value = top_address + output_offset; 4023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFp(fp_value); 4033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n", 4053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch fp_value, output_offset, value); 4063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // A marker value is used in place of the context. 4093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t context = reinterpret_cast<intptr_t>( 4113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); 4123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, context); 4133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context (adaptor sentinel)\n", 4153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, context); 4163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME. 4193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<intptr_t>(function); 4213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 4223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function\n", 4243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 4253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Number of incoming arguments. 4283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<uint32_t>(Smi::FromInt(height - 1)); 4303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 4313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; argc (%d)\n", 4333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value, height - 1); 4343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(0 == output_offset); 4373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Builtins* builtins = isolate_->builtins(); 4393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Code* adaptor_trampoline = 4403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch builtins->builtin(Builtins::kArgumentsAdaptorTrampoline); 4413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t pc = reinterpret_cast<uint32_t>( 4423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch adaptor_trampoline->instruction_start() + 4433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value()); 4443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetPc(pc); 445c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch} 446c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch 447c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch 4483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Deoptimizer::DoComputeConstructStubFrame(TranslationIterator* iterator, 4493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int frame_index) { 4509413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch Builtins* builtins = isolate_->builtins(); 4519413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch Code* construct_stub = builtins->builtin(Builtins::kJSConstructStubGeneric); 4523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next())); 4533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height = iterator->Next(); 4543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height_in_bytes = height * kPointerSize; 4553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" translating construct stub => height=%d\n", height_in_bytes); 4573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4599413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch unsigned fixed_frame_size = 8 * kPointerSize; 4603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_frame_size = height_in_bytes + fixed_frame_size; 4613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate and store the output frame description. 4633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FrameDescription* output_frame = 4643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new(output_frame_size) FrameDescription(output_frame_size, function); 4653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameType(StackFrame::CONSTRUCT); 4663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Construct stub can not be topmost or bottommost. 4683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(frame_index > 0 && frame_index < output_count_ - 1); 4693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(output_[frame_index] == NULL); 4703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[frame_index] = output_frame; 4713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The top address of the frame is computed from the previous 4733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // frame's top and this frame's size. 4743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t top_address; 4753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address = output_[frame_index - 1]->GetTop() - output_frame_size; 4763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetTop(top_address); 4773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute the incoming parameter translation. 4793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int parameter_count = height; 4803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_offset = output_frame_size; 4813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < parameter_count; ++i) { 4823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DoTranslateCommand(iterator, frame_index, output_offset); 4843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read caller's PC from the previous frame. 4873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t callers_pc = output_[frame_index - 1]->GetPc(); 4893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, callers_pc); 4903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 4913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n", 4923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, callers_pc); 4933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read caller's FP from the previous frame, and set this frame's FP. 4963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 4973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t value = output_[frame_index - 1]->GetFp(); 4983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 4993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t fp_value = top_address + output_offset; 5003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFp(fp_value); 5013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n", 5033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch fp_value, output_offset, value); 5043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The context can be gotten from the previous frame. 5073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 5083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = output_[frame_index - 1]->GetContext(); 5093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context\n", 5123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 5133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // A marker value is used in place of the function. 5163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 5173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::CONSTRUCT)); 5183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function (construct sentinel)\n", 5213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 5223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5249413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch // The output frame reflects a JSConstructStubGeneric frame. 5259413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch output_offset -= kPointerSize; 5269413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch value = reinterpret_cast<intptr_t>(construct_stub); 5279413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5289413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch if (FLAG_trace_deopt) { 5299413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; code object\n", 5309413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch top_address + output_offset, output_offset, value); 5319413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch } 5329413bcbe2192ed4d701281130490e0ba336debdcBen Murdoch 5333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Number of incoming arguments. 5343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 5353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<uint32_t>(Smi::FromInt(height - 1)); 5363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; argc (%d)\n", 5393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value, height - 1); 5403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Constructor function being invoked by the stub. 5433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 5443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<intptr_t>(function); 5453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; constructor function\n", 5483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 5493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The newly allocated object was passed as receiver in the artificial 5523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // constructor stub environment created by HEnvironment::CopyForInlining(). 5533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 5543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = output_frame->GetFrameSlot(output_frame_size - kPointerSize); 5553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 5563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; allocated receiver\n", 5583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 5593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(0 == output_offset); 5623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t pc = reinterpret_cast<uint32_t>( 5643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch construct_stub->instruction_start() + 5653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch isolate_->heap()->construct_stub_deopt_pc_offset()->value()); 5663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetPc(pc); 5673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// This code is very similar to ia32/arm code, but relies on register names 5713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// (fp, sp) and how the frame is laid out. 5723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, 5733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int frame_index) { 5743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Read the ast node id, function, and frame height for this output frame. 5753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int node_id = iterator->Next(); 5763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next())); 5773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height = iterator->Next(); 5783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned height_in_bytes = height * kPointerSize; 5793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 5803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" translating "); 5813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch function->PrintName(); 5823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" => node=%d, height=%d\n", node_id, height_in_bytes); 5833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The 'fixed' part of the frame consists of the incoming parameters and 5863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the part described by JavaScriptFrameConstants. 5873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned fixed_frame_size = ComputeFixedSize(function); 5883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned input_frame_size = input_->GetFrameSize(); 5893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_frame_size = height_in_bytes + fixed_frame_size; 5903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate and store the output frame description. 5923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FrameDescription* output_frame = 5933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new(output_frame_size) FrameDescription(output_frame_size, function); 5943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameType(StackFrame::JAVA_SCRIPT); 5953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool is_bottommost = (0 == frame_index); 5973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool is_topmost = (output_count_ - 1 == frame_index); 5983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(frame_index >= 0 && frame_index < output_count_); 5993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(output_[frame_index] == NULL); 6003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_[frame_index] = output_frame; 6013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The top address for the bottommost output frame can be computed from 6033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the input frame pointer and the output frame's height. For all 6043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // subsequent output frames, it can be computed from the previous one's 6053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // top address and the current frame's size. 6063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t top_address; 6073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_bottommost) { 6083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // 2 = context and function in the frame. 6093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address = 6103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->GetRegister(fp.code()) - (2 * kPointerSize) - height_in_bytes; 6113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 6123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address = output_[frame_index - 1]->GetTop() - output_frame_size; 6133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetTop(top_address); 6153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute the incoming parameter translation. 6173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int parameter_count = function->shared()->formal_parameter_count() + 1; 6183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned output_offset = output_frame_size; 6193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned input_offset = input_frame_size; 6203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < parameter_count; ++i) { 6213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 6223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DoTranslateCommand(iterator, frame_index, output_offset); 6233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= (parameter_count * kPointerSize); 6253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // There are no translation commands for the caller's pc and fp, the 6273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // context, and the function. Synthesize their values and set them up 6283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // explicitly. 6293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // 6303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The caller's pc for the bottommost output frame is the same as in the 6313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // input frame. For all subsequent output frames, it can be read from the 6323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // previous one. This frame's pc can be computed from the non-optimized 6333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // function code and AST id of the bailout. 6343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 6353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= kPointerSize; 6363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t value; 6373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_bottommost) { 6383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = input_->GetFrameSlot(input_offset); 6393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 6403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = output_[frame_index - 1]->GetPc(); 6413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 6433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 6443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n", 6453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 6463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The caller's frame pointer for the bottommost output frame is the same 6493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // as in the input frame. For all subsequent output frames, it can be 6503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // read from the previous one. Also compute and set this frame's frame 6513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // pointer. 6523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 6533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= kPointerSize; 6543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_bottommost) { 6553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = input_->GetFrameSlot(input_offset); 6563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 6573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = output_[frame_index - 1]->GetFp(); 6583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 6603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t fp_value = top_address + output_offset; 6613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!is_bottommost || input_->GetRegister(fp.code()) == fp_value); 6623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFp(fp_value); 6633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_topmost) { 6643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetRegister(fp.code(), fp_value); 6653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 6673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n", 6683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch fp_value, output_offset, value); 6693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // For the bottommost output frame the context can be gotten from the input 6723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // frame. For all subsequent output frames it can be gotten from the function 6733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // so long as we don't inline functions that need local contexts. 6743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 6753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= kPointerSize; 6763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_bottommost) { 6773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = input_->GetFrameSlot(input_offset); 6783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 6793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<intptr_t>(function->context()); 6803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 6823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetContext(value); 6833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_topmost) output_frame->SetRegister(cp.code(), value); 6843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 6853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context\n", 6863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 6873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The function was mentioned explicitly in the BEGIN_FRAME. 6903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 6913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_offset -= kPointerSize; 6923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value = reinterpret_cast<uint32_t>(function); 6933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The function for the bottommost output frame should also agree with the 6943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // input frame. 6953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!is_bottommost || input_->GetFrameSlot(input_offset) == value); 6963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetFrameSlot(output_offset, value); 6973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (FLAG_trace_deopt) { 6983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function\n", 6993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch top_address + output_offset, output_offset, value); 7003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Translate the rest of the frame. 7033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (unsigned i = 0; i < height; ++i) { 7043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_offset -= kPointerSize; 7053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DoTranslateCommand(iterator, frame_index, output_offset); 7063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(0 == output_offset); 7083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute this frame's PC, state, and continuation. 7103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Code* non_optimized_code = function->shared()->code(); 7113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FixedArray* raw_data = non_optimized_code->deoptimization_data(); 7123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeoptimizationOutputData* data = DeoptimizationOutputData::cast(raw_data); 7133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address start = non_optimized_code->instruction_start(); 7143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned pc_and_state = GetOutputInfo(data, node_id, function->shared()); 7153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch unsigned pc_offset = FullCodeGenerator::PcField::decode(pc_and_state); 7163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t pc_value = reinterpret_cast<uint32_t>(start + pc_offset); 7173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetPc(pc_value); 7183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FullCodeGenerator::State state = 7203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FullCodeGenerator::StateField::decode(pc_and_state); 7213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetState(Smi::FromInt(state)); 7223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set the continuation for the topmost frame. 7253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (is_topmost && bailout_type_ != DEBUGGER) { 7263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Builtins* builtins = isolate_->builtins(); 7273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Code* continuation = (bailout_type_ == EAGER) 7283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? builtins->builtin(Builtins::kNotifyDeoptimized) 7293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : builtins->builtin(Builtins::kNotifyLazyDeoptimized); 7303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch output_frame->SetContinuation( 7313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<uint32_t>(continuation->entry())); 7323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 7343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid Deoptimizer::FillInputFrame(Address tos, JavaScriptFrame* frame) { 7363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set the register values. The values are not important as there are no 7373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // callee saved registers in JavaScript frames, so all registers are 7383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // spilled. Registers fp and sp are set to the correct values though. 7393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < Register::kNumRegisters; i++) { 7413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->SetRegister(i, i * 4); 7423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->SetRegister(sp.code(), reinterpret_cast<intptr_t>(frame->sp())); 7443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->SetRegister(fp.code(), reinterpret_cast<intptr_t>(frame->fp())); 7453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < DoubleRegister::kNumAllocatableRegisters; i++) { 7463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->SetDoubleRegister(i, 0.0); 7473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Fill the frame content from the actual data on the frame. 7503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (unsigned i = 0; i < input_->GetFrameSize(); i += kPointerSize) { 7513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch input_->SetFrameSlot(i, Memory::uint32_at(tos + i)); 7523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 7543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 7553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 7563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#define __ masm()-> 7573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// This code tries to be close to ia32 code so that any changes can be 7603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// easily ported. 76144f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid Deoptimizer::EntryGenerator::Generate() { 7623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GeneratePrologue(); 7633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Isolate* isolate = masm()->isolate(); 7653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CpuFeatures::Scope scope(FPU); 7673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Unlike on ARM we don't save all the registers, just the useful ones. 7683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // For the rest, there are gaps on the stack, so the offsets remain the same. 7693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kNumberOfRegisters = Register::kNumRegisters; 7703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RegList restored_regs = kJSCallerSaved | kCalleeSaved; 7723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RegList saved_regs = restored_regs | sp.bit() | ra.bit(); 7733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kDoubleRegsSize = 7753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kDoubleSize * FPURegister::kNumAllocatableRegisters; 7763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Save all FPU registers before messing with them. 7783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Subu(sp, sp, Operand(kDoubleRegsSize)); 7793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < FPURegister::kNumAllocatableRegisters; ++i) { 7803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FPURegister fpu_reg = FPURegister::FromAllocationIndex(i); 7813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int offset = i * kDoubleSize; 7823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sdc1(fpu_reg, MemOperand(sp, offset)); 7833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Push saved_regs (needed to populate FrameDescription::registers_). 7863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Leave gaps for other registers. 7873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Subu(sp, sp, kNumberOfRegisters * kPointerSize); 7883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int16_t i = kNumberOfRegisters - 1; i >= 0; i--) { 7893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((saved_regs & (1 << i)) != 0) { 7903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(ToRegister(i), MemOperand(sp, kPointerSize * i)); 7913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 7933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int kSavedRegistersAreaSize = 7953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch (kNumberOfRegisters * kPointerSize) + kDoubleRegsSize; 7963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 7973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Get the bailout id from the stack. 7983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a2, MemOperand(sp, kSavedRegistersAreaSize)); 7993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Get the address of the location in the code object if possible (a3) (return 8013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // address for lazy deoptimization) and compute the fp-to-sp delta in 8023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // register t0. 8033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type() == EAGER) { 8043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(a3, zero_reg); 8053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Correct one word for bailout id. 8063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(t0, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize))); 8073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (type() == OSR) { 8083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(a3, ra); 8093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Correct one word for bailout id. 8103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(t0, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize))); 8113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 8123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(a3, ra); 8133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Correct two words for bailout id and return address. 8143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(t0, sp, Operand(kSavedRegistersAreaSize + (2 * kPointerSize))); 8153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Subu(t0, fp, t0); 8183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate a new deoptimizer object. 8203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Pass four arguments in a0 to a3 and fifth & sixth arguments on stack. 8213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ PrepareCallCFunction(6, t1); 8223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); 8233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ li(a1, Operand(type())); // bailout type, 8243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // a2: bailout id already loaded. 8253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // a3: code address or 0 already loaded. 8263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(t0, CFunctionArgumentOperand(5)); // Fp-to-sp delta. 8273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ li(t1, Operand(ExternalReference::isolate_address())); 8283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(t1, CFunctionArgumentOperand(6)); // Isolate. 8293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Call Deoptimizer::New(). 8303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch { 8313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch AllowExternalCallThatCantCauseGC scope(masm()); 8323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate), 6); 8333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Preserve "deoptimizer" object in register v0 and get the input 8363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // frame descriptor pointer to a1 (deoptimizer->input_); 8373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Move deopt-obj to a0 for call to Deoptimizer::ComputeOutputFrames() below. 8383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(a0, v0); 8393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a1, MemOperand(v0, Deoptimizer::input_offset())); 8403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Copy core registers into FrameDescription::registers_[kNumRegisters]. 8423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(Register::kNumRegisters == kNumberOfRegisters); 8433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < kNumberOfRegisters; i++) { 8443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int offset = (i * kPointerSize) + FrameDescription::registers_offset(); 8453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((saved_regs & (1 << i)) != 0) { 8463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a2, MemOperand(sp, i * kPointerSize)); 8473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(a2, MemOperand(a1, offset)); 8483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (FLAG_debug_code) { 8493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ li(a2, kDebugZapValue); 8503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(a2, MemOperand(a1, offset)); 8513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Copy FPU registers to 8553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // double_registers_[DoubleRegister::kNumAllocatableRegisters] 8563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int double_regs_offset = FrameDescription::double_registers_offset(); 8573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < FPURegister::kNumAllocatableRegisters; ++i) { 8583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int dst_offset = i * kDoubleSize + double_regs_offset; 8593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int src_offset = i * kDoubleSize + kNumberOfRegisters * kPointerSize; 8603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldc1(f0, MemOperand(sp, src_offset)); 8613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sdc1(f0, MemOperand(a1, dst_offset)); 8623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Remove the bailout id, eventually return address, and the saved registers 8653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // from the stack. 8663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type() == EAGER || type() == OSR) { 8673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(sp, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize))); 8683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 8693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(sp, sp, Operand(kSavedRegistersAreaSize + (2 * kPointerSize))); 8703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute a pointer to the unwinding limit in register a2; that is 8733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the first stack slot not part of the input frame. 8743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a2, MemOperand(a1, FrameDescription::frame_size_offset())); 8753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(a2, a2, sp); 8763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Unwind the stack down to - but not including - the unwinding 8783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // limit and copy the contents of the activation frame to the input 8793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // frame description. 8803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(a3, a1, Operand(FrameDescription::frame_content_offset())); 8813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label pop_loop; 8823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&pop_loop); 8833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ pop(t0); 8843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(t0, MemOperand(a3, 0)); 8853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Branch(USE_DELAY_SLOT, &pop_loop, ne, a2, Operand(sp)); 8863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ addiu(a3, a3, sizeof(uint32_t)); // In delay slot. 8873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 8883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compute the output frame in the deoptimizer. 8893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(a0); // Preserve deoptimizer object across call. 8903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // a0: deoptimizer object; a1: scratch. 8913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ PrepareCallCFunction(1, a1); 8923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Call Deoptimizer::ComputeOutputFrames(). 8933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch { 8943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch AllowExternalCallThatCantCauseGC scope(masm()); 8953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallCFunction( 8963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ExternalReference::compute_output_frames_function(isolate), 1); 8973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 8983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ pop(a0); // Restore deoptimizer object (class Deoptimizer). 8993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Replace the current (input) frame with the output frames. 9013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label outer_push_loop, inner_push_loop; 9023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Outer loop state: a0 = current "FrameDescription** output_", 9033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // a1 = one past the last FrameDescription**. 9043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a1, MemOperand(a0, Deoptimizer::output_count_offset())); 9053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a0, MemOperand(a0, Deoptimizer::output_offset())); // a0 is output_. 9063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sll(a1, a1, kPointerSizeLog2); // Count to offset. 9073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ addu(a1, a0, a1); // a1 = one past the last FrameDescription**. 9083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&outer_push_loop); 9093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Inner loop state: a2 = current FrameDescription*, a3 = loop index. 9103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a2, MemOperand(a0, 0)); // output_[ix] 9113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(a3, MemOperand(a2, FrameDescription::frame_size_offset())); 9123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&inner_push_loop); 9133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Subu(a3, a3, Operand(sizeof(uint32_t))); 9143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(t2, a2, Operand(a3)); 9153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(t3, MemOperand(t2, FrameDescription::frame_content_offset())); 9163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(t3); 9173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Branch(&inner_push_loop, ne, a3, Operand(zero_reg)); 9183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(a0, a0, Operand(kPointerSize)); 9203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Branch(&outer_push_loop, lt, a0, Operand(a1)); 9213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Push state, pc, and continuation from the last output frame. 9243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type() != OSR) { 9253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(t2, MemOperand(a2, FrameDescription::state_offset())); 9263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(t2); 9273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(t2, MemOperand(a2, FrameDescription::pc_offset())); 9303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(t2); 9313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(t2, MemOperand(a2, FrameDescription::continuation_offset())); 9323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(t2); 9333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Technically restoring 'at' should work unless zero_reg is also restored 9363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // but it's safer to check for this. 9373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!(at.bit() & restored_regs)); 9383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Restore the registers from the last output frame. 9393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(at, a2); 9403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = kNumberOfRegisters - 1; i >= 0; i--) { 9413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int offset = (i * kPointerSize) + FrameDescription::registers_offset(); 9423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((restored_regs & (1 << i)) != 0) { 9433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ lw(ToRegister(i), MemOperand(at, offset)); 9443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ InitializeRootRegister(); 9483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ pop(at); // Get continuation, leave pc on stack. 9503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ pop(ra); 9513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Jump(at); 9523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ stop("Unreachable."); 95344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 9543100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 9553100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 9563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Maximum size of a table entry generated below. 9573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochconst int Deoptimizer::table_entry_size_ = 9 * Assembler::kInstrSize; 9583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 95944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid Deoptimizer::TableEntryGenerator::GeneratePrologue() { 9603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm()); 9613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Create a sequence of deoptimization entries. Note that any 9633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // registers may be still live. 9643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label table_start; 9653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&table_start); 9663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < count(); i++) { 9673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label start; 9683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&start); 9693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type() != EAGER) { 9703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Emulate ia32 like call by pushing return address to stack. 9713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ addiu(sp, sp, -2 * kPointerSize); 9723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(ra, MemOperand(sp, 1 * kPointerSize)); 9733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 9743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ addiu(sp, sp, -1 * kPointerSize); 9753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Jump over the remaining deopt entries (including this one). 9773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // This code is always reached by calling Jump, which puts the target (label 9783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // start) into t9. 9793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int remaining_entries = (count() - i) * table_entry_size_; 9803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Addu(t9, t9, remaining_entries); 9813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // 'at' was clobbered so we can only load the current entry value here. 9823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ li(at, i); 9833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ jr(t9); // Expose delay slot. 9843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sw(at, MemOperand(sp, 0 * kPointerSize)); // In the delay slot. 9853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Pad the rest of the code. 9873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (table_entry_size_ > (masm()->SizeOfCodeGeneratedSince(&start))) { 9883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ nop(); 9893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT_EQ(table_entry_size_, masm()->SizeOfCodeGeneratedSince(&start)); 9923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 9933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT_EQ(masm()->SizeOfCodeGeneratedSince(&table_start), 9953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch count() * table_entry_size_); 99644f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 99744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 9983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef __ 9993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 100044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 100144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} } // namespace v8::internal 1002