| Index: src/arm64/lithium-arm64.cc
|
| diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
|
| deleted file mode 100644
|
| index 5cc5b9d592eedc19a49ed4a2315a42f862d047e0..0000000000000000000000000000000000000000
|
| --- a/src/arm64/lithium-arm64.cc
|
| +++ /dev/null
|
| @@ -1,2796 +0,0 @@
|
| -// Copyright 2013 the V8 project authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#include "src/arm64/lithium-arm64.h"
|
| -
|
| -#include <sstream>
|
| -
|
| -#include "src/arm64/lithium-codegen-arm64.h"
|
| -#include "src/hydrogen-osr.h"
|
| -#include "src/lithium-inl.h"
|
| -
|
| -namespace v8 {
|
| -namespace internal {
|
| -
|
| -#define DEFINE_COMPILE(type) \
|
| - void L##type::CompileToNative(LCodeGen* generator) { \
|
| - generator->Do##type(this); \
|
| - }
|
| -LITHIUM_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE)
|
| -#undef DEFINE_COMPILE
|
| -
|
| -#ifdef DEBUG
|
| -void LInstruction::VerifyCall() {
|
| - // Call instructions can use only fixed registers as temporaries and
|
| - // outputs because all registers are blocked by the calling convention.
|
| - // Inputs operands must use a fixed register or use-at-start policy or
|
| - // a non-register policy.
|
| - DCHECK(Output() == NULL ||
|
| - LUnallocated::cast(Output())->HasFixedPolicy() ||
|
| - !LUnallocated::cast(Output())->HasRegisterPolicy());
|
| - for (UseIterator it(this); !it.Done(); it.Advance()) {
|
| - LUnallocated* operand = LUnallocated::cast(it.Current());
|
| - DCHECK(operand->HasFixedPolicy() ||
|
| - operand->IsUsedAtStart());
|
| - }
|
| - for (TempIterator it(this); !it.Done(); it.Advance()) {
|
| - LUnallocated* operand = LUnallocated::cast(it.Current());
|
| - DCHECK(operand->HasFixedPolicy() ||!operand->HasRegisterPolicy());
|
| - }
|
| -}
|
| -#endif
|
| -
|
| -
|
| -void LLabel::PrintDataTo(StringStream* stream) {
|
| - LGap::PrintDataTo(stream);
|
| - LLabel* rep = replacement();
|
| - if (rep != NULL) {
|
| - stream->Add(" Dead block replaced with B%d", rep->block_id());
|
| - }
|
| -}
|
| -
|
| -
|
| -void LAccessArgumentsAt::PrintDataTo(StringStream* stream) {
|
| - arguments()->PrintTo(stream);
|
| - stream->Add(" length ");
|
| - length()->PrintTo(stream);
|
| - stream->Add(" index ");
|
| - index()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("B%d | B%d on ", true_block_id(), false_block_id());
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LCallJSFunction::PrintDataTo(StringStream* stream) {
|
| - stream->Add("= ");
|
| - function()->PrintTo(stream);
|
| - stream->Add("#%d / ", arity());
|
| -}
|
| -
|
| -
|
| -void LCallWithDescriptor::PrintDataTo(StringStream* stream) {
|
| - for (int i = 0; i < InputCount(); i++) {
|
| - InputAt(i)->PrintTo(stream);
|
| - stream->Add(" ");
|
| - }
|
| - stream->Add("#%d / ", arity());
|
| -}
|
| -
|
| -
|
| -void LCallNew::PrintDataTo(StringStream* stream) {
|
| - stream->Add("= ");
|
| - constructor()->PrintTo(stream);
|
| - stream->Add(" #%d / ", arity());
|
| -}
|
| -
|
| -
|
| -void LCallNewArray::PrintDataTo(StringStream* stream) {
|
| - stream->Add("= ");
|
| - constructor()->PrintTo(stream);
|
| - stream->Add(" #%d / ", arity());
|
| - ElementsKind kind = hydrogen()->elements_kind();
|
| - stream->Add(" (%s) ", ElementsKindToString(kind));
|
| -}
|
| -
|
| -
|
| -void LClassOfTestAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if class_of_test(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(", \"%o\") then B%d else B%d",
|
| - *hydrogen()->class_name(),
|
| - true_block_id(),
|
| - false_block_id());
|
| -}
|
| -
|
| -
|
| -void LCompareNumericAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if ");
|
| - left()->PrintTo(stream);
|
| - stream->Add(" %s ", Token::String(op()));
|
| - right()->PrintTo(stream);
|
| - stream->Add(" then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LHasCachedArrayIndexAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if has_cached_array_index(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -bool LGoto::HasInterestingComment(LCodeGen* gen) const {
|
| - return !gen->IsNextEmittedBlock(block_id());
|
| -}
|
| -
|
| -
|
| -void LGoto::PrintDataTo(StringStream* stream) {
|
| - stream->Add("B%d", block_id());
|
| -}
|
| -
|
| -
|
| -void LInnerAllocatedObject::PrintDataTo(StringStream* stream) {
|
| - stream->Add(" = ");
|
| - base_object()->PrintTo(stream);
|
| - stream->Add(" + ");
|
| - offset()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LCallFunction::PrintDataTo(StringStream* stream) {
|
| - context()->PrintTo(stream);
|
| - stream->Add(" ");
|
| - function()->PrintTo(stream);
|
| - if (hydrogen()->HasVectorAndSlot()) {
|
| - stream->Add(" (type-feedback-vector ");
|
| - temp_vector()->PrintTo(stream);
|
| - stream->Add(" ");
|
| - temp_slot()->PrintTo(stream);
|
| - stream->Add(")");
|
| - }
|
| -}
|
| -
|
| -
|
| -void LInvokeFunction::PrintDataTo(StringStream* stream) {
|
| - stream->Add("= ");
|
| - function()->PrintTo(stream);
|
| - stream->Add(" #%d / ", arity());
|
| -}
|
| -
|
| -
|
| -void LInstruction::PrintTo(StringStream* stream) {
|
| - stream->Add("%s ", this->Mnemonic());
|
| -
|
| - PrintOutputOperandTo(stream);
|
| -
|
| - PrintDataTo(stream);
|
| -
|
| - if (HasEnvironment()) {
|
| - stream->Add(" ");
|
| - environment()->PrintTo(stream);
|
| - }
|
| -
|
| - if (HasPointerMap()) {
|
| - stream->Add(" ");
|
| - pointer_map()->PrintTo(stream);
|
| - }
|
| -}
|
| -
|
| -
|
| -void LInstruction::PrintDataTo(StringStream* stream) {
|
| - stream->Add("= ");
|
| - for (int i = 0; i < InputCount(); i++) {
|
| - if (i > 0) stream->Add(" ");
|
| - if (InputAt(i) == NULL) {
|
| - stream->Add("NULL");
|
| - } else {
|
| - InputAt(i)->PrintTo(stream);
|
| - }
|
| - }
|
| -}
|
| -
|
| -
|
| -void LInstruction::PrintOutputOperandTo(StringStream* stream) {
|
| - if (HasResult()) result()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LHasInstanceTypeAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if has_instance_type(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LIsStringAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if is_string(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LIsSmiAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if is_smi(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LTypeofIsAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if typeof ");
|
| - value()->PrintTo(stream);
|
| - stream->Add(" == \"%s\" then B%d else B%d",
|
| - hydrogen()->type_literal()->ToCString().get(),
|
| - true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LIsUndetectableAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if is_undetectable(");
|
| - value()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -bool LGap::IsRedundant() const {
|
| - for (int i = 0; i < 4; i++) {
|
| - if ((parallel_moves_[i] != NULL) && !parallel_moves_[i]->IsRedundant()) {
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -
|
| -void LGap::PrintDataTo(StringStream* stream) {
|
| - for (int i = 0; i < 4; i++) {
|
| - stream->Add("(");
|
| - if (parallel_moves_[i] != NULL) {
|
| - parallel_moves_[i]->PrintDataTo(stream);
|
| - }
|
| - stream->Add(") ");
|
| - }
|
| -}
|
| -
|
| -
|
| -void LLoadContextSlot::PrintDataTo(StringStream* stream) {
|
| - context()->PrintTo(stream);
|
| - stream->Add("[%d]", slot_index());
|
| -}
|
| -
|
| -
|
| -void LStoreCodeEntry::PrintDataTo(StringStream* stream) {
|
| - stream->Add(" = ");
|
| - function()->PrintTo(stream);
|
| - stream->Add(".code_entry = ");
|
| - code_object()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LStoreContextSlot::PrintDataTo(StringStream* stream) {
|
| - context()->PrintTo(stream);
|
| - stream->Add("[%d] <- ", slot_index());
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LStoreKeyedGeneric::PrintDataTo(StringStream* stream) {
|
| - object()->PrintTo(stream);
|
| - stream->Add("[");
|
| - key()->PrintTo(stream);
|
| - stream->Add("] <- ");
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LLoadGlobalViaContext::PrintDataTo(StringStream* stream) {
|
| - stream->Add("depth:%d slot:%d", depth(), slot_index());
|
| -}
|
| -
|
| -
|
| -void LStoreNamedField::PrintDataTo(StringStream* stream) {
|
| - object()->PrintTo(stream);
|
| - std::ostringstream os;
|
| - os << hydrogen()->access();
|
| - stream->Add(os.str().c_str());
|
| - stream->Add(" <- ");
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LStoreNamedGeneric::PrintDataTo(StringStream* stream) {
|
| - object()->PrintTo(stream);
|
| - stream->Add(".");
|
| - stream->Add(String::cast(*name())->ToCString().get());
|
| - stream->Add(" <- ");
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LStoreGlobalViaContext::PrintDataTo(StringStream* stream) {
|
| - stream->Add("depth:%d slot:%d <- ", depth(), slot_index());
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -void LStringCompareAndBranch::PrintDataTo(StringStream* stream) {
|
| - stream->Add("if string_compare(");
|
| - left()->PrintTo(stream);
|
| - right()->PrintTo(stream);
|
| - stream->Add(") then B%d else B%d", true_block_id(), false_block_id());
|
| -}
|
| -
|
| -
|
| -void LTransitionElementsKind::PrintDataTo(StringStream* stream) {
|
| - object()->PrintTo(stream);
|
| - stream->Add("%p -> %p", *original_map(), *transitioned_map());
|
| -}
|
| -
|
| -
|
| -template<int T>
|
| -void LUnaryMathOperation<T>::PrintDataTo(StringStream* stream) {
|
| - value()->PrintTo(stream);
|
| -}
|
| -
|
| -
|
| -const char* LArithmeticD::Mnemonic() const {
|
| - switch (op()) {
|
| - case Token::ADD: return "add-d";
|
| - case Token::SUB: return "sub-d";
|
| - case Token::MUL: return "mul-d";
|
| - case Token::DIV: return "div-d";
|
| - case Token::MOD: return "mod-d";
|
| - default:
|
| - UNREACHABLE();
|
| - return NULL;
|
| - }
|
| -}
|
| -
|
| -
|
| -const char* LArithmeticT::Mnemonic() const {
|
| - switch (op()) {
|
| - case Token::ADD: return "add-t";
|
| - case Token::SUB: return "sub-t";
|
| - case Token::MUL: return "mul-t";
|
| - case Token::MOD: return "mod-t";
|
| - case Token::DIV: return "div-t";
|
| - case Token::BIT_AND: return "bit-and-t";
|
| - case Token::BIT_OR: return "bit-or-t";
|
| - case Token::BIT_XOR: return "bit-xor-t";
|
| - case Token::ROR: return "ror-t";
|
| - case Token::SHL: return "shl-t";
|
| - case Token::SAR: return "sar-t";
|
| - case Token::SHR: return "shr-t";
|
| - default:
|
| - UNREACHABLE();
|
| - return NULL;
|
| - }
|
| -}
|
| -
|
| -
|
| -LUnallocated* LChunkBuilder::ToUnallocated(Register reg) {
|
| - return new (zone()) LUnallocated(LUnallocated::FIXED_REGISTER, reg.code());
|
| -}
|
| -
|
| -
|
| -LUnallocated* LChunkBuilder::ToUnallocated(DoubleRegister reg) {
|
| - return new (zone())
|
| - LUnallocated(LUnallocated::FIXED_DOUBLE_REGISTER, reg.code());
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::Use(HValue* value, LUnallocated* operand) {
|
| - if (value->EmitAtUses()) {
|
| - HInstruction* instr = HInstruction::cast(value);
|
| - VisitInstruction(instr);
|
| - }
|
| - operand->set_virtual_register(value->id());
|
| - return operand;
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseFixed(HValue* value, Register fixed_register) {
|
| - return Use(value, ToUnallocated(fixed_register));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseFixedDouble(HValue* value,
|
| - DoubleRegister fixed_register) {
|
| - return Use(value, ToUnallocated(fixed_register));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseRegister(HValue* value) {
|
| - return Use(value, new(zone()) LUnallocated(LUnallocated::MUST_HAVE_REGISTER));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseRegisterAndClobber(HValue* value) {
|
| - return Use(value, new(zone()) LUnallocated(LUnallocated::WRITABLE_REGISTER));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseRegisterAtStart(HValue* value) {
|
| - return Use(value,
|
| - new(zone()) LUnallocated(LUnallocated::MUST_HAVE_REGISTER,
|
| - LUnallocated::USED_AT_START));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseRegisterOrConstant(HValue* value) {
|
| - return value->IsConstant() ? UseConstant(value) : UseRegister(value);
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseRegisterOrConstantAtStart(HValue* value) {
|
| - return value->IsConstant() ? UseConstant(value) : UseRegisterAtStart(value);
|
| -}
|
| -
|
| -
|
| -LConstantOperand* LChunkBuilder::UseConstant(HValue* value) {
|
| - return chunk_->DefineConstantOperand(HConstant::cast(value));
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::UseAny(HValue* value) {
|
| - return value->IsConstant()
|
| - ? UseConstant(value)
|
| - : Use(value, new(zone()) LUnallocated(LUnallocated::ANY));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::Define(LTemplateResultInstruction<1>* instr,
|
| - LUnallocated* result) {
|
| - result->set_virtual_register(current_instruction_->id());
|
| - instr->set_result(result);
|
| - return instr;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DefineAsRegister(
|
| - LTemplateResultInstruction<1>* instr) {
|
| - return Define(instr,
|
| - new(zone()) LUnallocated(LUnallocated::MUST_HAVE_REGISTER));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DefineAsSpilled(
|
| - LTemplateResultInstruction<1>* instr, int index) {
|
| - return Define(instr,
|
| - new(zone()) LUnallocated(LUnallocated::FIXED_SLOT, index));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DefineSameAsFirst(
|
| - LTemplateResultInstruction<1>* instr) {
|
| - return Define(instr,
|
| - new(zone()) LUnallocated(LUnallocated::SAME_AS_FIRST_INPUT));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DefineFixed(
|
| - LTemplateResultInstruction<1>* instr, Register reg) {
|
| - return Define(instr, ToUnallocated(reg));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DefineFixedDouble(
|
| - LTemplateResultInstruction<1>* instr, DoubleRegister reg) {
|
| - return Define(instr, ToUnallocated(reg));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr,
|
| - HInstruction* hinstr,
|
| - CanDeoptimize can_deoptimize) {
|
| - info()->MarkAsNonDeferredCalling();
|
| -#ifdef DEBUG
|
| - instr->VerifyCall();
|
| -#endif
|
| - instr->MarkAsCall();
|
| - instr = AssignPointerMap(instr);
|
| -
|
| - // If instruction does not have side-effects lazy deoptimization
|
| - // after the call will try to deoptimize to the point before the call.
|
| - // Thus we still need to attach environment to this call even if
|
| - // call sequence can not deoptimize eagerly.
|
| - bool needs_environment =
|
| - (can_deoptimize == CAN_DEOPTIMIZE_EAGERLY) ||
|
| - !hinstr->HasObservableSideEffects();
|
| - if (needs_environment && !instr->HasEnvironment()) {
|
| - instr = AssignEnvironment(instr);
|
| - // We can't really figure out if the environment is needed or not.
|
| - instr->environment()->set_has_been_used();
|
| - }
|
| -
|
| - return instr;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::AssignPointerMap(LInstruction* instr) {
|
| - DCHECK(!instr->HasPointerMap());
|
| - instr->set_pointer_map(new(zone()) LPointerMap(zone()));
|
| - return instr;
|
| -}
|
| -
|
| -
|
| -LUnallocated* LChunkBuilder::TempRegister() {
|
| - LUnallocated* operand =
|
| - new(zone()) LUnallocated(LUnallocated::MUST_HAVE_REGISTER);
|
| - int vreg = allocator_->GetVirtualRegister();
|
| - if (!allocator_->AllocationOk()) {
|
| - Abort(kOutOfVirtualRegistersWhileTryingToAllocateTempRegister);
|
| - vreg = 0;
|
| - }
|
| - operand->set_virtual_register(vreg);
|
| - return operand;
|
| -}
|
| -
|
| -
|
| -LUnallocated* LChunkBuilder::TempDoubleRegister() {
|
| - LUnallocated* operand =
|
| - new(zone()) LUnallocated(LUnallocated::MUST_HAVE_DOUBLE_REGISTER);
|
| - int vreg = allocator_->GetVirtualRegister();
|
| - if (!allocator_->AllocationOk()) {
|
| - Abort(kOutOfVirtualRegistersWhileTryingToAllocateTempRegister);
|
| - vreg = 0;
|
| - }
|
| - operand->set_virtual_register(vreg);
|
| - return operand;
|
| -}
|
| -
|
| -
|
| -int LPlatformChunk::GetNextSpillIndex() {
|
| - return spill_slot_count_++;
|
| -}
|
| -
|
| -
|
| -LOperand* LPlatformChunk::GetNextSpillSlot(RegisterKind kind) {
|
| - int index = GetNextSpillIndex();
|
| - if (kind == DOUBLE_REGISTERS) {
|
| - return LDoubleStackSlot::Create(index, zone());
|
| - } else {
|
| - DCHECK(kind == GENERAL_REGISTERS);
|
| - return LStackSlot::Create(index, zone());
|
| - }
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::FixedTemp(Register reg) {
|
| - LUnallocated* operand = ToUnallocated(reg);
|
| - DCHECK(operand->HasFixedPolicy());
|
| - return operand;
|
| -}
|
| -
|
| -
|
| -LOperand* LChunkBuilder::FixedTemp(DoubleRegister reg) {
|
| - LUnallocated* operand = ToUnallocated(reg);
|
| - DCHECK(operand->HasFixedPolicy());
|
| - return operand;
|
| -}
|
| -
|
| -
|
| -LPlatformChunk* LChunkBuilder::Build() {
|
| - DCHECK(is_unused());
|
| - chunk_ = new(zone()) LPlatformChunk(info_, graph_);
|
| - LPhase phase("L_Building chunk", chunk_);
|
| - status_ = BUILDING;
|
| -
|
| - // If compiling for OSR, reserve space for the unoptimized frame,
|
| - // which will be subsumed into this frame.
|
| - if (graph()->has_osr()) {
|
| - // TODO(all): GetNextSpillIndex just increments a field. It has no other
|
| - // side effects, so we should get rid of this loop.
|
| - for (int i = graph()->osr()->UnoptimizedFrameSlots(); i > 0; i--) {
|
| - chunk_->GetNextSpillIndex();
|
| - }
|
| - }
|
| -
|
| - const ZoneList<HBasicBlock*>* blocks = graph_->blocks();
|
| - for (int i = 0; i < blocks->length(); i++) {
|
| - DoBasicBlock(blocks->at(i));
|
| - if (is_aborted()) return NULL;
|
| - }
|
| - status_ = DONE;
|
| - return chunk_;
|
| -}
|
| -
|
| -
|
| -void LChunkBuilder::DoBasicBlock(HBasicBlock* block) {
|
| - DCHECK(is_building());
|
| - current_block_ = block;
|
| -
|
| - if (block->IsStartBlock()) {
|
| - block->UpdateEnvironment(graph_->start_environment());
|
| - argument_count_ = 0;
|
| - } else if (block->predecessors()->length() == 1) {
|
| - // We have a single predecessor => copy environment and outgoing
|
| - // argument count from the predecessor.
|
| - DCHECK(block->phis()->length() == 0);
|
| - HBasicBlock* pred = block->predecessors()->at(0);
|
| - HEnvironment* last_environment = pred->last_environment();
|
| - DCHECK(last_environment != NULL);
|
| -
|
| - // Only copy the environment, if it is later used again.
|
| - if (pred->end()->SecondSuccessor() == NULL) {
|
| - DCHECK(pred->end()->FirstSuccessor() == block);
|
| - } else {
|
| - if ((pred->end()->FirstSuccessor()->block_id() > block->block_id()) ||
|
| - (pred->end()->SecondSuccessor()->block_id() > block->block_id())) {
|
| - last_environment = last_environment->Copy();
|
| - }
|
| - }
|
| - block->UpdateEnvironment(last_environment);
|
| - DCHECK(pred->argument_count() >= 0);
|
| - argument_count_ = pred->argument_count();
|
| - } else {
|
| - // We are at a state join => process phis.
|
| - HBasicBlock* pred = block->predecessors()->at(0);
|
| - // No need to copy the environment, it cannot be used later.
|
| - HEnvironment* last_environment = pred->last_environment();
|
| - for (int i = 0; i < block->phis()->length(); ++i) {
|
| - HPhi* phi = block->phis()->at(i);
|
| - if (phi->HasMergedIndex()) {
|
| - last_environment->SetValueAt(phi->merged_index(), phi);
|
| - }
|
| - }
|
| - for (int i = 0; i < block->deleted_phis()->length(); ++i) {
|
| - if (block->deleted_phis()->at(i) < last_environment->length()) {
|
| - last_environment->SetValueAt(block->deleted_phis()->at(i),
|
| - graph_->GetConstantUndefined());
|
| - }
|
| - }
|
| - block->UpdateEnvironment(last_environment);
|
| - // Pick up the outgoing argument count of one of the predecessors.
|
| - argument_count_ = pred->argument_count();
|
| - }
|
| -
|
| - // Translate hydrogen instructions to lithium ones for the current block.
|
| - HInstruction* current = block->first();
|
| - int start = chunk_->instructions()->length();
|
| - while ((current != NULL) && !is_aborted()) {
|
| - // Code for constants in registers is generated lazily.
|
| - if (!current->EmitAtUses()) {
|
| - VisitInstruction(current);
|
| - }
|
| - current = current->next();
|
| - }
|
| - int end = chunk_->instructions()->length() - 1;
|
| - if (end >= start) {
|
| - block->set_first_instruction_index(start);
|
| - block->set_last_instruction_index(end);
|
| - }
|
| - block->set_argument_count(argument_count_);
|
| - current_block_ = NULL;
|
| -}
|
| -
|
| -
|
| -void LChunkBuilder::VisitInstruction(HInstruction* current) {
|
| - HInstruction* old_current = current_instruction_;
|
| - current_instruction_ = current;
|
| -
|
| - LInstruction* instr = NULL;
|
| - if (current->CanReplaceWithDummyUses()) {
|
| - if (current->OperandCount() == 0) {
|
| - instr = DefineAsRegister(new(zone()) LDummy());
|
| - } else {
|
| - DCHECK(!current->OperandAt(0)->IsControlInstruction());
|
| - instr = DefineAsRegister(new(zone())
|
| - LDummyUse(UseAny(current->OperandAt(0))));
|
| - }
|
| - for (int i = 1; i < current->OperandCount(); ++i) {
|
| - if (current->OperandAt(i)->IsControlInstruction()) continue;
|
| - LInstruction* dummy =
|
| - new(zone()) LDummyUse(UseAny(current->OperandAt(i)));
|
| - dummy->set_hydrogen_value(current);
|
| - chunk_->AddInstruction(dummy, current_block_);
|
| - }
|
| - } else {
|
| - HBasicBlock* successor;
|
| - if (current->IsControlInstruction() &&
|
| - HControlInstruction::cast(current)->KnownSuccessorBlock(&successor) &&
|
| - successor != NULL) {
|
| - instr = new(zone()) LGoto(successor);
|
| - } else {
|
| - instr = current->CompileToLithium(this);
|
| - }
|
| - }
|
| -
|
| - argument_count_ += current->argument_delta();
|
| - DCHECK(argument_count_ >= 0);
|
| -
|
| - if (instr != NULL) {
|
| - AddInstruction(instr, current);
|
| - }
|
| -
|
| - current_instruction_ = old_current;
|
| -}
|
| -
|
| -
|
| -void LChunkBuilder::AddInstruction(LInstruction* instr,
|
| - HInstruction* hydrogen_val) {
|
| - // Associate the hydrogen instruction first, since we may need it for
|
| - // the ClobbersRegisters() or ClobbersDoubleRegisters() calls below.
|
| - instr->set_hydrogen_value(hydrogen_val);
|
| -
|
| -#if DEBUG
|
| - // Make sure that the lithium instruction has either no fixed register
|
| - // constraints in temps or the result OR no uses that are only used at
|
| - // start. If this invariant doesn't hold, the register allocator can decide
|
| - // to insert a split of a range immediately before the instruction due to an
|
| - // already allocated register needing to be used for the instruction's fixed
|
| - // register constraint. In this case, the register allocator won't see an
|
| - // interference between the split child and the use-at-start (it would if
|
| - // the it was just a plain use), so it is free to move the split child into
|
| - // the same register that is used for the use-at-start.
|
| - // See https://code.google.com/p/chromium/issues/detail?id=201590
|
| - if (!(instr->ClobbersRegisters() &&
|
| - instr->ClobbersDoubleRegisters(isolate()))) {
|
| - int fixed = 0;
|
| - int used_at_start = 0;
|
| - for (UseIterator it(instr); !it.Done(); it.Advance()) {
|
| - LUnallocated* operand = LUnallocated::cast(it.Current());
|
| - if (operand->IsUsedAtStart()) ++used_at_start;
|
| - }
|
| - if (instr->Output() != NULL) {
|
| - if (LUnallocated::cast(instr->Output())->HasFixedPolicy()) ++fixed;
|
| - }
|
| - for (TempIterator it(instr); !it.Done(); it.Advance()) {
|
| - LUnallocated* operand = LUnallocated::cast(it.Current());
|
| - if (operand->HasFixedPolicy()) ++fixed;
|
| - }
|
| - DCHECK(fixed == 0 || used_at_start == 0);
|
| - }
|
| -#endif
|
| -
|
| - if (FLAG_stress_pointer_maps && !instr->HasPointerMap()) {
|
| - instr = AssignPointerMap(instr);
|
| - }
|
| - if (FLAG_stress_environments && !instr->HasEnvironment()) {
|
| - instr = AssignEnvironment(instr);
|
| - }
|
| - chunk_->AddInstruction(instr, current_block_);
|
| -
|
| - if (instr->IsCall() || instr->IsPrologue()) {
|
| - HValue* hydrogen_value_for_lazy_bailout = hydrogen_val;
|
| - if (hydrogen_val->HasObservableSideEffects()) {
|
| - HSimulate* sim = HSimulate::cast(hydrogen_val->next());
|
| - sim->ReplayEnvironment(current_block_->last_environment());
|
| - hydrogen_value_for_lazy_bailout = sim;
|
| - }
|
| - LInstruction* bailout = AssignEnvironment(new(zone()) LLazyBailout());
|
| - bailout->set_hydrogen_value(hydrogen_value_for_lazy_bailout);
|
| - chunk_->AddInstruction(bailout, current_block_);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::AssignEnvironment(LInstruction* instr) {
|
| - HEnvironment* hydrogen_env = current_block_->last_environment();
|
| - int argument_index_accumulator = 0;
|
| - ZoneList<HValue*> objects_to_materialize(0, zone());
|
| - instr->set_environment(CreateEnvironment(hydrogen_env,
|
| - &argument_index_accumulator,
|
| - &objects_to_materialize));
|
| - return instr;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoPrologue(HPrologue* instr) {
|
| - return new (zone()) LPrologue();
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
|
| - // The control instruction marking the end of a block that completed
|
| - // abruptly (e.g., threw an exception). There is nothing specific to do.
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoArithmeticD(Token::Value op,
|
| - HArithmeticBinaryOperation* instr) {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->left()->representation().IsDouble());
|
| - DCHECK(instr->right()->representation().IsDouble());
|
| -
|
| - if (op == Token::MOD) {
|
| - LOperand* left = UseFixedDouble(instr->left(), d0);
|
| - LOperand* right = UseFixedDouble(instr->right(), d1);
|
| - LArithmeticD* result = new(zone()) LArithmeticD(Token::MOD, left, right);
|
| - return MarkAsCall(DefineFixedDouble(result, d0), instr);
|
| - } else {
|
| - LOperand* left = UseRegisterAtStart(instr->left());
|
| - LOperand* right = UseRegisterAtStart(instr->right());
|
| - LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
|
| - return DefineAsRegister(result);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoArithmeticT(Token::Value op,
|
| - HBinaryOperation* instr) {
|
| - DCHECK((op == Token::ADD) || (op == Token::SUB) || (op == Token::MUL) ||
|
| - (op == Token::DIV) || (op == Token::MOD) || (op == Token::SHR) ||
|
| - (op == Token::SHL) || (op == Token::SAR) || (op == Token::ROR) ||
|
| - (op == Token::BIT_OR) || (op == Token::BIT_AND) ||
|
| - (op == Token::BIT_XOR));
|
| - HValue* left = instr->left();
|
| - HValue* right = instr->right();
|
| -
|
| - // TODO(jbramley): Once we've implemented smi support for all arithmetic
|
| - // operations, these assertions should check IsTagged().
|
| - DCHECK(instr->representation().IsSmiOrTagged());
|
| - DCHECK(left->representation().IsSmiOrTagged());
|
| - DCHECK(right->representation().IsSmiOrTagged());
|
| -
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* left_operand = UseFixed(left, x1);
|
| - LOperand* right_operand = UseFixed(right, x0);
|
| - LArithmeticT* result =
|
| - new(zone()) LArithmeticT(op, context, left_operand, right_operand);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoBoundsCheckBaseIndexInformation(
|
| - HBoundsCheckBaseIndexInformation* instr) {
|
| - UNREACHABLE();
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoAccessArgumentsAt(HAccessArgumentsAt* instr) {
|
| - info()->MarkAsRequiresFrame();
|
| - LOperand* args = NULL;
|
| - LOperand* length = NULL;
|
| - LOperand* index = NULL;
|
| -
|
| - if (instr->length()->IsConstant() && instr->index()->IsConstant()) {
|
| - args = UseRegisterAtStart(instr->arguments());
|
| - length = UseConstant(instr->length());
|
| - index = UseConstant(instr->index());
|
| - } else {
|
| - args = UseRegister(instr->arguments());
|
| - length = UseRegisterAtStart(instr->length());
|
| - index = UseRegisterOrConstantAtStart(instr->index());
|
| - }
|
| -
|
| - return DefineAsRegister(new(zone()) LAccessArgumentsAt(args, length, index));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoAdd(HAdd* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| -
|
| - LInstruction* shifted_operation = TryDoOpWithShiftedRightOperand(instr);
|
| - if (shifted_operation != NULL) {
|
| - return shifted_operation;
|
| - }
|
| -
|
| - LOperand* left = UseRegisterAtStart(instr->BetterLeftOperand());
|
| - LOperand* right =
|
| - UseRegisterOrConstantAtStart(instr->BetterRightOperand());
|
| - LInstruction* result = instr->representation().IsSmi() ?
|
| - DefineAsRegister(new(zone()) LAddS(left, right)) :
|
| - DefineAsRegister(new(zone()) LAddI(left, right));
|
| - if (instr->CheckFlag(HValue::kCanOverflow)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - } else if (instr->representation().IsExternal()) {
|
| - DCHECK(instr->IsConsistentExternalRepresentation());
|
| - DCHECK(!instr->CheckFlag(HValue::kCanOverflow));
|
| - LOperand* left = UseRegisterAtStart(instr->left());
|
| - LOperand* right = UseRegisterOrConstantAtStart(instr->right());
|
| - return DefineAsRegister(new(zone()) LAddE(left, right));
|
| - } else if (instr->representation().IsDouble()) {
|
| - return DoArithmeticD(Token::ADD, instr);
|
| - } else {
|
| - DCHECK(instr->representation().IsTagged());
|
| - return DoArithmeticT(Token::ADD, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoAllocate(HAllocate* instr) {
|
| - info()->MarkAsDeferredCalling();
|
| - LOperand* context = UseAny(instr->context());
|
| - LOperand* size = UseRegisterOrConstant(instr->size());
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| - LOperand* temp3 = instr->MustPrefillWithFiller() ? TempRegister() : NULL;
|
| - LAllocate* result = new(zone()) LAllocate(context, size, temp1, temp2, temp3);
|
| - return AssignPointerMap(DefineAsRegister(result));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoApplyArguments(HApplyArguments* instr) {
|
| - LOperand* function = UseFixed(instr->function(), x1);
|
| - LOperand* receiver = UseFixed(instr->receiver(), x0);
|
| - LOperand* length = UseFixed(instr->length(), x2);
|
| - LOperand* elements = UseFixed(instr->elements(), x3);
|
| - LApplyArguments* result = new(zone()) LApplyArguments(function,
|
| - receiver,
|
| - length,
|
| - elements);
|
| - return MarkAsCall(DefineFixed(result, x0), instr, CAN_DEOPTIMIZE_EAGERLY);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoArgumentsElements(HArgumentsElements* instr) {
|
| - info()->MarkAsRequiresFrame();
|
| - LOperand* temp = instr->from_inlined() ? NULL : TempRegister();
|
| - return DefineAsRegister(new(zone()) LArgumentsElements(temp));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoArgumentsLength(HArgumentsLength* instr) {
|
| - info()->MarkAsRequiresFrame();
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return DefineAsRegister(new(zone()) LArgumentsLength(value));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoArgumentsObject(HArgumentsObject* instr) {
|
| - // There are no real uses of the arguments object.
|
| - // arguments.length and element access are supported directly on
|
| - // stack arguments, and any real arguments object use causes a bailout.
|
| - // So this value is never used.
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoBitwise(HBitwise* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->CheckFlag(HValue::kTruncatingToInt32));
|
| -
|
| - LInstruction* shifted_operation = TryDoOpWithShiftedRightOperand(instr);
|
| - if (shifted_operation != NULL) {
|
| - return shifted_operation;
|
| - }
|
| -
|
| - LOperand* left = UseRegisterAtStart(instr->BetterLeftOperand());
|
| - LOperand* right =
|
| - UseRegisterOrConstantAtStart(instr->BetterRightOperand());
|
| - return instr->representation().IsSmi() ?
|
| - DefineAsRegister(new(zone()) LBitS(left, right)) :
|
| - DefineAsRegister(new(zone()) LBitI(left, right));
|
| - } else {
|
| - return DoArithmeticT(instr->op(), instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoBlockEntry(HBlockEntry* instr) {
|
| - // V8 expects a label to be generated for each basic block.
|
| - // This is used in some places like LAllocator::IsBlockBoundary
|
| - // in lithium-allocator.cc
|
| - return new(zone()) LLabel(instr->block());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoBoundsCheck(HBoundsCheck* instr) {
|
| - if (!FLAG_debug_code && instr->skip_check()) return NULL;
|
| - LOperand* index = UseRegisterOrConstantAtStart(instr->index());
|
| - LOperand* length = !index->IsConstantOperand()
|
| - ? UseRegisterOrConstantAtStart(instr->length())
|
| - : UseRegisterAtStart(instr->length());
|
| - LInstruction* result = new(zone()) LBoundsCheck(index, length);
|
| - if (!FLAG_debug_code || !instr->skip_check()) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoBranch(HBranch* instr) {
|
| - HValue* value = instr->value();
|
| - Representation r = value->representation();
|
| - HType type = value->type();
|
| -
|
| - if (r.IsInteger32() || r.IsSmi() || r.IsDouble()) {
|
| - // These representations have simple checks that cannot deoptimize.
|
| - return new(zone()) LBranch(UseRegister(value), NULL, NULL);
|
| - } else {
|
| - DCHECK(r.IsTagged());
|
| - if (type.IsBoolean() || type.IsSmi() || type.IsJSArray() ||
|
| - type.IsHeapNumber()) {
|
| - // These types have simple checks that cannot deoptimize.
|
| - return new(zone()) LBranch(UseRegister(value), NULL, NULL);
|
| - }
|
| -
|
| - if (type.IsString()) {
|
| - // This type cannot deoptimize, but needs a scratch register.
|
| - return new(zone()) LBranch(UseRegister(value), TempRegister(), NULL);
|
| - }
|
| -
|
| - ToBooleanStub::Types expected = instr->expected_input_types();
|
| - bool needs_temps = expected.NeedsMap() || expected.IsEmpty();
|
| - LOperand* temp1 = needs_temps ? TempRegister() : NULL;
|
| - LOperand* temp2 = needs_temps ? TempRegister() : NULL;
|
| -
|
| - if (expected.IsGeneric() || expected.IsEmpty()) {
|
| - // The generic case cannot deoptimize because it already supports every
|
| - // possible input type.
|
| - DCHECK(needs_temps);
|
| - return new(zone()) LBranch(UseRegister(value), temp1, temp2);
|
| - } else {
|
| - return AssignEnvironment(
|
| - new(zone()) LBranch(UseRegister(value), temp1, temp2));
|
| - }
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallJSFunction(
|
| - HCallJSFunction* instr) {
|
| - LOperand* function = UseFixed(instr->function(), x1);
|
| -
|
| - LCallJSFunction* result = new(zone()) LCallJSFunction(function);
|
| -
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallWithDescriptor(
|
| - HCallWithDescriptor* instr) {
|
| - CallInterfaceDescriptor descriptor = instr->descriptor();
|
| -
|
| - LOperand* target = UseRegisterOrConstantAtStart(instr->target());
|
| - ZoneList<LOperand*> ops(instr->OperandCount(), zone());
|
| - // Target
|
| - ops.Add(target, zone());
|
| - // Context
|
| - LOperand* op = UseFixed(instr->OperandAt(1), cp);
|
| - ops.Add(op, zone());
|
| - // Other register parameters
|
| - for (int i = LCallWithDescriptor::kImplicitRegisterParameterCount;
|
| - i < instr->OperandCount(); i++) {
|
| - op =
|
| - UseFixed(instr->OperandAt(i),
|
| - descriptor.GetRegisterParameter(
|
| - i - LCallWithDescriptor::kImplicitRegisterParameterCount));
|
| - ops.Add(op, zone());
|
| - }
|
| -
|
| - LCallWithDescriptor* result = new(zone()) LCallWithDescriptor(descriptor,
|
| - ops,
|
| - zone());
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallFunction(HCallFunction* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* function = UseFixed(instr->function(), x1);
|
| - LOperand* slot = NULL;
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - slot = FixedTemp(x3);
|
| - vector = FixedTemp(x2);
|
| - }
|
| -
|
| - LCallFunction* call =
|
| - new (zone()) LCallFunction(context, function, slot, vector);
|
| - return MarkAsCall(DefineFixed(call, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallNew(HCallNew* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - // The call to CallConstructStub will expect the constructor to be in x1.
|
| - LOperand* constructor = UseFixed(instr->constructor(), x1);
|
| - LCallNew* result = new(zone()) LCallNew(context, constructor);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallNewArray(HCallNewArray* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - // The call to ArrayConstructCode will expect the constructor to be in x1.
|
| - LOperand* constructor = UseFixed(instr->constructor(), x1);
|
| - LCallNewArray* result = new(zone()) LCallNewArray(context, constructor);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallRuntime(HCallRuntime* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - return MarkAsCall(DefineFixed(new(zone()) LCallRuntime(context), x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCallStub(HCallStub* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - return MarkAsCall(DefineFixed(new(zone()) LCallStub(context), x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCapturedObject(HCapturedObject* instr) {
|
| - instr->ReplayEnvironment(current_block_->last_environment());
|
| -
|
| - // There are no real uses of a captured object.
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoChange(HChange* instr) {
|
| - Representation from = instr->from();
|
| - Representation to = instr->to();
|
| - HValue* val = instr->value();
|
| - if (from.IsSmi()) {
|
| - if (to.IsTagged()) {
|
| - LOperand* value = UseRegister(val);
|
| - return DefineSameAsFirst(new(zone()) LDummyUse(value));
|
| - }
|
| - from = Representation::Tagged();
|
| - }
|
| - if (from.IsTagged()) {
|
| - if (to.IsDouble()) {
|
| - LOperand* value = UseRegister(val);
|
| - LOperand* temp = TempRegister();
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LNumberUntagD(value, temp));
|
| - if (!val->representation().IsSmi()) result = AssignEnvironment(result);
|
| - return result;
|
| - } else if (to.IsSmi()) {
|
| - LOperand* value = UseRegister(val);
|
| - if (val->type().IsSmi()) {
|
| - return DefineSameAsFirst(new(zone()) LDummyUse(value));
|
| - }
|
| - return AssignEnvironment(DefineSameAsFirst(new(zone()) LCheckSmi(value)));
|
| - } else {
|
| - DCHECK(to.IsInteger32());
|
| - if (val->type().IsSmi() || val->representation().IsSmi()) {
|
| - LOperand* value = UseRegisterAtStart(val);
|
| - return DefineAsRegister(new(zone()) LSmiUntag(value, false));
|
| - } else {
|
| - LOperand* value = UseRegister(val);
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = instr->CanTruncateToInt32()
|
| - ? NULL : TempDoubleRegister();
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LTaggedToI(value, temp1, temp2));
|
| - if (!val->representation().IsSmi()) result = AssignEnvironment(result);
|
| - return result;
|
| - }
|
| - }
|
| - } else if (from.IsDouble()) {
|
| - if (to.IsTagged()) {
|
| - info()->MarkAsDeferredCalling();
|
| - LOperand* value = UseRegister(val);
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| - LNumberTagD* result = new(zone()) LNumberTagD(value, temp1, temp2);
|
| - return AssignPointerMap(DefineAsRegister(result));
|
| - } else {
|
| - DCHECK(to.IsSmi() || to.IsInteger32());
|
| - if (instr->CanTruncateToInt32()) {
|
| - LOperand* value = UseRegister(val);
|
| - return DefineAsRegister(new(zone()) LTruncateDoubleToIntOrSmi(value));
|
| - } else {
|
| - LOperand* value = UseRegister(val);
|
| - LDoubleToIntOrSmi* result = new(zone()) LDoubleToIntOrSmi(value);
|
| - return AssignEnvironment(DefineAsRegister(result));
|
| - }
|
| - }
|
| - } else if (from.IsInteger32()) {
|
| - info()->MarkAsDeferredCalling();
|
| - if (to.IsTagged()) {
|
| - if (val->CheckFlag(HInstruction::kUint32)) {
|
| - LOperand* value = UseRegister(val);
|
| - LNumberTagU* result =
|
| - new(zone()) LNumberTagU(value, TempRegister(), TempRegister());
|
| - return AssignPointerMap(DefineAsRegister(result));
|
| - } else {
|
| - STATIC_ASSERT((kMinInt == Smi::kMinValue) &&
|
| - (kMaxInt == Smi::kMaxValue));
|
| - LOperand* value = UseRegisterAtStart(val);
|
| - return DefineAsRegister(new(zone()) LSmiTag(value));
|
| - }
|
| - } else if (to.IsSmi()) {
|
| - LOperand* value = UseRegisterAtStart(val);
|
| - LInstruction* result = DefineAsRegister(new(zone()) LSmiTag(value));
|
| - if (instr->CheckFlag(HValue::kCanOverflow)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - } else {
|
| - DCHECK(to.IsDouble());
|
| - if (val->CheckFlag(HInstruction::kUint32)) {
|
| - return DefineAsRegister(
|
| - new(zone()) LUint32ToDouble(UseRegisterAtStart(val)));
|
| - } else {
|
| - return DefineAsRegister(
|
| - new(zone()) LInteger32ToDouble(UseRegisterAtStart(val)));
|
| - }
|
| - }
|
| - }
|
| - UNREACHABLE();
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckValue(HCheckValue* instr) {
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return AssignEnvironment(new(zone()) LCheckValue(value));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckArrayBufferNotNeutered(
|
| - HCheckArrayBufferNotNeutered* instr) {
|
| - LOperand* view = UseRegisterAtStart(instr->value());
|
| - LCheckArrayBufferNotNeutered* result =
|
| - new (zone()) LCheckArrayBufferNotNeutered(view);
|
| - return AssignEnvironment(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckInstanceType(HCheckInstanceType* instr) {
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LOperand* temp = TempRegister();
|
| - LInstruction* result = new(zone()) LCheckInstanceType(value, temp);
|
| - return AssignEnvironment(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckMaps(HCheckMaps* instr) {
|
| - if (instr->IsStabilityCheck()) return new(zone()) LCheckMaps;
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LOperand* temp = TempRegister();
|
| - LInstruction* result = AssignEnvironment(new(zone()) LCheckMaps(value, temp));
|
| - if (instr->HasMigrationTarget()) {
|
| - info()->MarkAsDeferredCalling();
|
| - result = AssignPointerMap(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckHeapObject(HCheckHeapObject* instr) {
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LInstruction* result = new(zone()) LCheckNonSmi(value);
|
| - if (!instr->value()->type().IsHeapObject()) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckSmi(HCheckSmi* instr) {
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return AssignEnvironment(new(zone()) LCheckSmi(value));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoClampToUint8(HClampToUint8* instr) {
|
| - HValue* value = instr->value();
|
| - Representation input_rep = value->representation();
|
| - LOperand* reg = UseRegister(value);
|
| - if (input_rep.IsDouble()) {
|
| - return DefineAsRegister(new(zone()) LClampDToUint8(reg));
|
| - } else if (input_rep.IsInteger32()) {
|
| - return DefineAsRegister(new(zone()) LClampIToUint8(reg));
|
| - } else {
|
| - DCHECK(input_rep.IsSmiOrTagged());
|
| - return AssignEnvironment(
|
| - DefineAsRegister(new(zone()) LClampTToUint8(reg,
|
| - TempDoubleRegister())));
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoClassOfTestAndBranch(
|
| - HClassOfTestAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return new(zone()) LClassOfTestAndBranch(value,
|
| - TempRegister(),
|
| - TempRegister());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareNumericAndBranch(
|
| - HCompareNumericAndBranch* instr) {
|
| - Representation r = instr->representation();
|
| - if (r.IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(r));
|
| - DCHECK(instr->right()->representation().Equals(r));
|
| - LOperand* left = UseRegisterOrConstantAtStart(instr->left());
|
| - LOperand* right = UseRegisterOrConstantAtStart(instr->right());
|
| - return new(zone()) LCompareNumericAndBranch(left, right);
|
| - } else {
|
| - DCHECK(r.IsDouble());
|
| - DCHECK(instr->left()->representation().IsDouble());
|
| - DCHECK(instr->right()->representation().IsDouble());
|
| - if (instr->left()->IsConstant() && instr->right()->IsConstant()) {
|
| - LOperand* left = UseConstant(instr->left());
|
| - LOperand* right = UseConstant(instr->right());
|
| - return new(zone()) LCompareNumericAndBranch(left, right);
|
| - }
|
| - LOperand* left = UseRegisterAtStart(instr->left());
|
| - LOperand* right = UseRegisterAtStart(instr->right());
|
| - return new(zone()) LCompareNumericAndBranch(left, right);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
|
| - DCHECK(instr->left()->representation().IsTagged());
|
| - DCHECK(instr->right()->representation().IsTagged());
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* left = UseFixed(instr->left(), x1);
|
| - LOperand* right = UseFixed(instr->right(), x0);
|
| - LCmpT* result = new(zone()) LCmpT(context, left, right);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareHoleAndBranch(
|
| - HCompareHoleAndBranch* instr) {
|
| - LOperand* value = UseRegister(instr->value());
|
| - if (instr->representation().IsTagged()) {
|
| - return new(zone()) LCmpHoleAndBranchT(value);
|
| - } else {
|
| - LOperand* temp = TempRegister();
|
| - return new(zone()) LCmpHoleAndBranchD(value, temp);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
|
| - HCompareObjectEqAndBranch* instr) {
|
| - LOperand* left = UseRegisterAtStart(instr->left());
|
| - LOperand* right = UseRegisterAtStart(instr->right());
|
| - return new(zone()) LCmpObjectEqAndBranch(left, right);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareMap(HCompareMap* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LOperand* temp = TempRegister();
|
| - return new(zone()) LCmpMapAndBranch(value, temp);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoConstant(HConstant* instr) {
|
| - Representation r = instr->representation();
|
| - if (r.IsSmi()) {
|
| - return DefineAsRegister(new(zone()) LConstantS);
|
| - } else if (r.IsInteger32()) {
|
| - return DefineAsRegister(new(zone()) LConstantI);
|
| - } else if (r.IsDouble()) {
|
| - return DefineAsRegister(new(zone()) LConstantD);
|
| - } else if (r.IsExternal()) {
|
| - return DefineAsRegister(new(zone()) LConstantE);
|
| - } else if (r.IsTagged()) {
|
| - return DefineAsRegister(new(zone()) LConstantT);
|
| - } else {
|
| - UNREACHABLE();
|
| - return NULL;
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoContext(HContext* instr) {
|
| - if (instr->HasNoUses()) return NULL;
|
| -
|
| - if (info()->IsStub()) {
|
| - return DefineFixed(new(zone()) LContext, cp);
|
| - }
|
| -
|
| - return DefineAsRegister(new(zone()) LContext);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDateField(HDateField* instr) {
|
| - LOperand* object = UseFixed(instr->value(), x0);
|
| - LDateField* result = new(zone()) LDateField(object, instr->index());
|
| - return MarkAsCall(DefineFixed(result, x0), instr, CANNOT_DEOPTIMIZE_EAGERLY);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDebugBreak(HDebugBreak* instr) {
|
| - return new(zone()) LDebugBreak();
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDeclareGlobals(HDeclareGlobals* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - return MarkAsCall(new(zone()) LDeclareGlobals(context), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDeoptimize(HDeoptimize* instr) {
|
| - return AssignEnvironment(new(zone()) LDeoptimize);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDivByPowerOf2I(HDiv* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LInstruction* result = DefineAsRegister(new(zone()) LDivByPowerOf2I(
|
| - dividend, divisor));
|
| - if ((instr->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) ||
|
| - (instr->CheckFlag(HValue::kCanOverflow) && divisor == -1) ||
|
| - (!instr->CheckFlag(HInstruction::kAllUsesTruncatingToInt32) &&
|
| - divisor != 1 && divisor != -1)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDivByConstI(HDiv* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LOperand* temp = instr->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)
|
| - ? NULL : TempRegister();
|
| - LInstruction* result = DefineAsRegister(new(zone()) LDivByConstI(
|
| - dividend, divisor, temp));
|
| - if (divisor == 0 ||
|
| - (instr->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) ||
|
| - !instr->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDivI(HBinaryOperation* instr) {
|
| - DCHECK(instr->representation().IsSmiOrInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - LOperand* divisor = UseRegister(instr->right());
|
| - LOperand* temp = instr->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)
|
| - ? NULL : TempRegister();
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LDivI(dividend, divisor, temp));
|
| - if (!instr->CheckFlag(HValue::kAllUsesTruncatingToInt32)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDiv(HDiv* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - if (instr->RightIsPowerOf2()) {
|
| - return DoDivByPowerOf2I(instr);
|
| - } else if (instr->right()->IsConstant()) {
|
| - return DoDivByConstI(instr);
|
| - } else {
|
| - return DoDivI(instr);
|
| - }
|
| - } else if (instr->representation().IsDouble()) {
|
| - return DoArithmeticD(Token::DIV, instr);
|
| - } else {
|
| - return DoArithmeticT(Token::DIV, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDummyUse(HDummyUse* instr) {
|
| - return DefineAsRegister(new(zone()) LDummyUse(UseAny(instr->value())));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
|
| - HEnvironment* outer = current_block_->last_environment();
|
| - outer->set_ast_id(instr->ReturnId());
|
| - HConstant* undefined = graph()->GetConstantUndefined();
|
| - HEnvironment* inner = outer->CopyForInlining(instr->closure(),
|
| - instr->arguments_count(),
|
| - instr->function(),
|
| - undefined,
|
| - instr->inlining_kind());
|
| - // Only replay binding of arguments object if it wasn't removed from graph.
|
| - if ((instr->arguments_var() != NULL) &&
|
| - instr->arguments_object()->IsLinked()) {
|
| - inner->Bind(instr->arguments_var(), instr->arguments_object());
|
| - }
|
| - inner->BindContext(instr->closure_context());
|
| - inner->set_entry(instr);
|
| - current_block_->UpdateEnvironment(inner);
|
| - chunk_->AddInlinedFunction(instr->shared());
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoEnvironmentMarker(HEnvironmentMarker* instr) {
|
| - UNREACHABLE();
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoForceRepresentation(
|
| - HForceRepresentation* instr) {
|
| - // All HForceRepresentation instructions should be eliminated in the
|
| - // representation change phase of Hydrogen.
|
| - UNREACHABLE();
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoGetCachedArrayIndex(
|
| - HGetCachedArrayIndex* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return DefineAsRegister(new(zone()) LGetCachedArrayIndex(value));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoGoto(HGoto* instr) {
|
| - return new(zone()) LGoto(instr->FirstSuccessor());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoHasCachedArrayIndexAndBranch(
|
| - HHasCachedArrayIndexAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - return new(zone()) LHasCachedArrayIndexAndBranch(
|
| - UseRegisterAtStart(instr->value()), TempRegister());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoHasInstanceTypeAndBranch(
|
| - HHasInstanceTypeAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return new(zone()) LHasInstanceTypeAndBranch(value, TempRegister());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoInnerAllocatedObject(
|
| - HInnerAllocatedObject* instr) {
|
| - LOperand* base_object = UseRegisterAtStart(instr->base_object());
|
| - LOperand* offset = UseRegisterOrConstantAtStart(instr->offset());
|
| - return DefineAsRegister(
|
| - new(zone()) LInnerAllocatedObject(base_object, offset));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoInstanceOf(HInstanceOf* instr) {
|
| - LOperand* left =
|
| - UseFixed(instr->left(), InstanceOfDescriptor::LeftRegister());
|
| - LOperand* right =
|
| - UseFixed(instr->right(), InstanceOfDescriptor::RightRegister());
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LInstanceOf* result = new (zone()) LInstanceOf(context, left, right);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoHasInPrototypeChainAndBranch(
|
| - HHasInPrototypeChainAndBranch* instr) {
|
| - LOperand* object = UseRegister(instr->object());
|
| - LOperand* prototype = UseRegister(instr->prototype());
|
| - LOperand* scratch = TempRegister();
|
| - return new (zone()) LHasInPrototypeChainAndBranch(object, prototype, scratch);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoInvokeFunction(HInvokeFunction* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - // The function is required (by MacroAssembler::InvokeFunction) to be in x1.
|
| - LOperand* function = UseFixed(instr->function(), x1);
|
| - LInvokeFunction* result = new(zone()) LInvokeFunction(context, function);
|
| - return MarkAsCall(DefineFixed(result, x0), instr, CANNOT_DEOPTIMIZE_EAGERLY);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoIsConstructCallAndBranch(
|
| - HIsConstructCallAndBranch* instr) {
|
| - return new(zone()) LIsConstructCallAndBranch(TempRegister(), TempRegister());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCompareMinusZeroAndBranch(
|
| - HCompareMinusZeroAndBranch* instr) {
|
| - LOperand* value = UseRegister(instr->value());
|
| - LOperand* scratch = TempRegister();
|
| - return new(zone()) LCompareMinusZeroAndBranch(value, scratch);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoIsStringAndBranch(HIsStringAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LOperand* temp = TempRegister();
|
| - return new(zone()) LIsStringAndBranch(value, temp);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoIsSmiAndBranch(HIsSmiAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - return new(zone()) LIsSmiAndBranch(UseRegisterAtStart(instr->value()));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoIsUndetectableAndBranch(
|
| - HIsUndetectableAndBranch* instr) {
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - return new(zone()) LIsUndetectableAndBranch(value, TempRegister());
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
|
| - LInstruction* pop = NULL;
|
| - HEnvironment* env = current_block_->last_environment();
|
| -
|
| - if (env->entry()->arguments_pushed()) {
|
| - int argument_count = env->arguments_environment()->parameter_count();
|
| - pop = new(zone()) LDrop(argument_count);
|
| - DCHECK(instr->argument_delta() == -argument_count);
|
| - }
|
| -
|
| - HEnvironment* outer =
|
| - current_block_->last_environment()->DiscardInlined(false);
|
| - current_block_->UpdateEnvironment(outer);
|
| -
|
| - return pop;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadContextSlot(HLoadContextSlot* instr) {
|
| - LOperand* context = UseRegisterAtStart(instr->value());
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LLoadContextSlot(context));
|
| - if (instr->RequiresHoleCheck() && instr->DeoptimizesOnHole()) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadFunctionPrototype(
|
| - HLoadFunctionPrototype* instr) {
|
| - LOperand* function = UseRegister(instr->function());
|
| - LOperand* temp = TempRegister();
|
| - return AssignEnvironment(DefineAsRegister(
|
| - new(zone()) LLoadFunctionPrototype(function, temp)));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* global_object =
|
| - UseFixed(instr->global_object(), LoadDescriptor::ReceiverRegister());
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - vector = FixedTemp(LoadWithVectorDescriptor::VectorRegister());
|
| - }
|
| -
|
| - LLoadGlobalGeneric* result =
|
| - new(zone()) LLoadGlobalGeneric(context, global_object, vector);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadGlobalViaContext(
|
| - HLoadGlobalViaContext* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - DCHECK(instr->slot_index() > 0);
|
| - LLoadGlobalViaContext* result = new (zone()) LLoadGlobalViaContext(context);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadKeyed(HLoadKeyed* instr) {
|
| - DCHECK(instr->key()->representation().IsSmiOrInteger32());
|
| - ElementsKind elements_kind = instr->elements_kind();
|
| - LOperand* elements = UseRegister(instr->elements());
|
| - LOperand* key = UseRegisterOrConstant(instr->key());
|
| -
|
| - if (!instr->is_fixed_typed_array()) {
|
| - if (instr->representation().IsDouble()) {
|
| - LOperand* temp = (!instr->key()->IsConstant() ||
|
| - instr->RequiresHoleCheck())
|
| - ? TempRegister()
|
| - : NULL;
|
| - LInstruction* result = DefineAsRegister(
|
| - new (zone()) LLoadKeyedFixedDouble(elements, key, temp));
|
| - if (instr->RequiresHoleCheck()) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - } else {
|
| - DCHECK(instr->representation().IsSmiOrTagged() ||
|
| - instr->representation().IsInteger32());
|
| - LOperand* temp = instr->key()->IsConstant() ? NULL : TempRegister();
|
| - LInstruction* result =
|
| - DefineAsRegister(new (zone()) LLoadKeyedFixed(elements, key, temp));
|
| - if (instr->RequiresHoleCheck() ||
|
| - (instr->hole_mode() == CONVERT_HOLE_TO_UNDEFINED &&
|
| - info()->IsStub())) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - }
|
| - } else {
|
| - DCHECK((instr->representation().IsInteger32() &&
|
| - !IsDoubleOrFloatElementsKind(instr->elements_kind())) ||
|
| - (instr->representation().IsDouble() &&
|
| - IsDoubleOrFloatElementsKind(instr->elements_kind())));
|
| -
|
| - LOperand* temp = instr->key()->IsConstant() ? NULL : TempRegister();
|
| - LInstruction* result = DefineAsRegister(
|
| - new(zone()) LLoadKeyedExternal(elements, key, temp));
|
| - if (elements_kind == UINT32_ELEMENTS &&
|
| - !instr->CheckFlag(HInstruction::kUint32)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* object =
|
| - UseFixed(instr->object(), LoadDescriptor::ReceiverRegister());
|
| - LOperand* key = UseFixed(instr->key(), LoadDescriptor::NameRegister());
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - vector = FixedTemp(LoadWithVectorDescriptor::VectorRegister());
|
| - }
|
| -
|
| - LInstruction* result =
|
| - DefineFixed(new(zone()) LLoadKeyedGeneric(context, object, key, vector),
|
| - x0);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) {
|
| - LOperand* object = UseRegisterAtStart(instr->object());
|
| - return DefineAsRegister(new(zone()) LLoadNamedField(object));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* object =
|
| - UseFixed(instr->object(), LoadDescriptor::ReceiverRegister());
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - vector = FixedTemp(LoadWithVectorDescriptor::VectorRegister());
|
| - }
|
| -
|
| - LInstruction* result =
|
| - DefineFixed(new(zone()) LLoadNamedGeneric(context, object, vector), x0);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadRoot(HLoadRoot* instr) {
|
| - return DefineAsRegister(new(zone()) LLoadRoot);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMapEnumLength(HMapEnumLength* instr) {
|
| - LOperand* map = UseRegisterAtStart(instr->value());
|
| - return DefineAsRegister(new(zone()) LMapEnumLength(map));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoFlooringDivByPowerOf2I(HMathFloorOfDiv* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegisterAtStart(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LInstruction* result = DefineAsRegister(new(zone()) LFlooringDivByPowerOf2I(
|
| - dividend, divisor));
|
| - if ((instr->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) ||
|
| - (instr->CheckFlag(HValue::kLeftCanBeMinInt) && divisor == -1)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoFlooringDivByConstI(HMathFloorOfDiv* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LOperand* temp =
|
| - ((divisor > 0 && !instr->CheckFlag(HValue::kLeftCanBeNegative)) ||
|
| - (divisor < 0 && !instr->CheckFlag(HValue::kLeftCanBePositive))) ?
|
| - NULL : TempRegister();
|
| - LInstruction* result = DefineAsRegister(
|
| - new(zone()) LFlooringDivByConstI(dividend, divisor, temp));
|
| - if (divisor == 0 ||
|
| - (instr->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoFlooringDivI(HMathFloorOfDiv* instr) {
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - LOperand* divisor = UseRegister(instr->right());
|
| - LOperand* remainder = TempRegister();
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LFlooringDivI(dividend, divisor, remainder));
|
| - return AssignEnvironment(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMathFloorOfDiv(HMathFloorOfDiv* instr) {
|
| - if (instr->RightIsPowerOf2()) {
|
| - return DoFlooringDivByPowerOf2I(instr);
|
| - } else if (instr->right()->IsConstant()) {
|
| - return DoFlooringDivByConstI(instr);
|
| - } else {
|
| - return DoFlooringDivI(instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMathMinMax(HMathMinMax* instr) {
|
| - LOperand* left = NULL;
|
| - LOperand* right = NULL;
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - left = UseRegisterAtStart(instr->BetterLeftOperand());
|
| - right = UseRegisterOrConstantAtStart(instr->BetterRightOperand());
|
| - } else {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->left()->representation().IsDouble());
|
| - DCHECK(instr->right()->representation().IsDouble());
|
| - left = UseRegisterAtStart(instr->left());
|
| - right = UseRegisterAtStart(instr->right());
|
| - }
|
| - return DefineAsRegister(new(zone()) LMathMinMax(left, right));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoModByPowerOf2I(HMod* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegisterAtStart(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LInstruction* result = DefineSameAsFirst(new(zone()) LModByPowerOf2I(
|
| - dividend, divisor));
|
| - if (instr->CheckFlag(HValue::kLeftCanBeNegative) &&
|
| - instr->CheckFlag(HValue::kBailoutOnMinusZero)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoModByConstI(HMod* instr) {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - int32_t divisor = instr->right()->GetInteger32Constant();
|
| - LOperand* temp = TempRegister();
|
| - LInstruction* result = DefineAsRegister(new(zone()) LModByConstI(
|
| - dividend, divisor, temp));
|
| - if (divisor == 0 || instr->CheckFlag(HValue::kBailoutOnMinusZero)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoModI(HMod* instr) {
|
| - DCHECK(instr->representation().IsSmiOrInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| - LOperand* dividend = UseRegister(instr->left());
|
| - LOperand* divisor = UseRegister(instr->right());
|
| - LInstruction* result = DefineAsRegister(new(zone()) LModI(dividend, divisor));
|
| - if (instr->CheckFlag(HValue::kCanBeDivByZero) ||
|
| - instr->CheckFlag(HValue::kBailoutOnMinusZero)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMod(HMod* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - if (instr->RightIsPowerOf2()) {
|
| - return DoModByPowerOf2I(instr);
|
| - } else if (instr->right()->IsConstant()) {
|
| - return DoModByConstI(instr);
|
| - } else {
|
| - return DoModI(instr);
|
| - }
|
| - } else if (instr->representation().IsDouble()) {
|
| - return DoArithmeticD(Token::MOD, instr);
|
| - } else {
|
| - return DoArithmeticT(Token::MOD, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMul(HMul* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| -
|
| - bool can_overflow = instr->CheckFlag(HValue::kCanOverflow);
|
| - bool bailout_on_minus_zero = instr->CheckFlag(HValue::kBailoutOnMinusZero);
|
| -
|
| - HValue* least_const = instr->BetterLeftOperand();
|
| - HValue* most_const = instr->BetterRightOperand();
|
| -
|
| - // LMulConstI can handle a subset of constants:
|
| - // With support for overflow detection:
|
| - // -1, 0, 1, 2
|
| - // 2^n, -(2^n)
|
| - // Without support for overflow detection:
|
| - // 2^n + 1, -(2^n - 1)
|
| - if (most_const->IsConstant()) {
|
| - int32_t constant = HConstant::cast(most_const)->Integer32Value();
|
| - bool small_constant = (constant >= -1) && (constant <= 2);
|
| - bool end_range_constant = (constant <= -kMaxInt) || (constant == kMaxInt);
|
| - int32_t constant_abs = Abs(constant);
|
| -
|
| - if (!end_range_constant &&
|
| - (small_constant || (base::bits::IsPowerOfTwo32(constant_abs)) ||
|
| - (!can_overflow && (base::bits::IsPowerOfTwo32(constant_abs + 1) ||
|
| - base::bits::IsPowerOfTwo32(constant_abs - 1))))) {
|
| - LConstantOperand* right = UseConstant(most_const);
|
| - bool need_register =
|
| - base::bits::IsPowerOfTwo32(constant_abs) && !small_constant;
|
| - LOperand* left = need_register ? UseRegister(least_const)
|
| - : UseRegisterAtStart(least_const);
|
| - LInstruction* result =
|
| - DefineAsRegister(new(zone()) LMulConstIS(left, right));
|
| - if ((bailout_on_minus_zero && constant <= 0) ||
|
| - (can_overflow && constant != 1 &&
|
| - base::bits::IsPowerOfTwo32(constant_abs))) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - }
|
| - }
|
| -
|
| - // LMulI/S can handle all cases, but it requires that a register is
|
| - // allocated for the second operand.
|
| - LOperand* left = UseRegisterAtStart(least_const);
|
| - LOperand* right = UseRegisterAtStart(most_const);
|
| - LInstruction* result = instr->representation().IsSmi()
|
| - ? DefineAsRegister(new(zone()) LMulS(left, right))
|
| - : DefineAsRegister(new(zone()) LMulI(left, right));
|
| - if ((bailout_on_minus_zero && least_const != most_const) || can_overflow) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - } else if (instr->representation().IsDouble()) {
|
| - return DoArithmeticD(Token::MUL, instr);
|
| - } else {
|
| - return DoArithmeticT(Token::MUL, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoOsrEntry(HOsrEntry* instr) {
|
| - DCHECK(argument_count_ == 0);
|
| - allocator_->MarkAsOsrEntry();
|
| - current_block_->last_environment()->set_ast_id(instr->ast_id());
|
| - return AssignEnvironment(new(zone()) LOsrEntry);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoParameter(HParameter* instr) {
|
| - LParameter* result = new(zone()) LParameter;
|
| - if (instr->kind() == HParameter::STACK_PARAMETER) {
|
| - int spill_index = chunk_->GetParameterStackSlot(instr->index());
|
| - return DefineAsSpilled(result, spill_index);
|
| - } else {
|
| - DCHECK(info()->IsStub());
|
| - CallInterfaceDescriptor descriptor =
|
| - info()->code_stub()->GetCallInterfaceDescriptor();
|
| - int index = static_cast<int>(instr->index());
|
| - Register reg = descriptor.GetRegisterParameter(index);
|
| - return DefineFixed(result, reg);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoPower(HPower* instr) {
|
| - DCHECK(instr->representation().IsDouble());
|
| - // We call a C function for double power. It can't trigger a GC.
|
| - // We need to use fixed result register for the call.
|
| - Representation exponent_type = instr->right()->representation();
|
| - DCHECK(instr->left()->representation().IsDouble());
|
| - LOperand* left = UseFixedDouble(instr->left(), d0);
|
| - LOperand* right;
|
| - if (exponent_type.IsInteger32()) {
|
| - right = UseFixed(instr->right(), MathPowIntegerDescriptor::exponent());
|
| - } else if (exponent_type.IsDouble()) {
|
| - right = UseFixedDouble(instr->right(), d1);
|
| - } else {
|
| - right = UseFixed(instr->right(), MathPowTaggedDescriptor::exponent());
|
| - }
|
| - LPower* result = new(zone()) LPower(left, right);
|
| - return MarkAsCall(DefineFixedDouble(result, d0),
|
| - instr,
|
| - CAN_DEOPTIMIZE_EAGERLY);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoPushArguments(HPushArguments* instr) {
|
| - int argc = instr->OperandCount();
|
| - AddInstruction(new(zone()) LPreparePushArguments(argc), instr);
|
| -
|
| - LPushArguments* push_args = new(zone()) LPushArguments(zone());
|
| -
|
| - for (int i = 0; i < argc; ++i) {
|
| - if (push_args->ShouldSplitPush()) {
|
| - AddInstruction(push_args, instr);
|
| - push_args = new(zone()) LPushArguments(zone());
|
| - }
|
| - push_args->AddArgument(UseRegister(instr->argument(i)));
|
| - }
|
| -
|
| - return push_args;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoRegExpLiteral(HRegExpLiteral* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - return MarkAsCall(
|
| - DefineFixed(new(zone()) LRegExpLiteral(context), x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoDoubleBits(HDoubleBits* instr) {
|
| - HValue* value = instr->value();
|
| - DCHECK(value->representation().IsDouble());
|
| - return DefineAsRegister(new(zone()) LDoubleBits(UseRegister(value)));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoConstructDouble(HConstructDouble* instr) {
|
| - LOperand* lo = UseRegisterAndClobber(instr->lo());
|
| - LOperand* hi = UseRegister(instr->hi());
|
| - return DefineAsRegister(new(zone()) LConstructDouble(hi, lo));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoReturn(HReturn* instr) {
|
| - LOperand* context = info()->IsStub()
|
| - ? UseFixed(instr->context(), cp)
|
| - : NULL;
|
| - LOperand* parameter_count = UseRegisterOrConstant(instr->parameter_count());
|
| - return new(zone()) LReturn(UseFixed(instr->value(), x0), context,
|
| - parameter_count);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoSeqStringGetChar(HSeqStringGetChar* instr) {
|
| - LOperand* string = UseRegisterAtStart(instr->string());
|
| - LOperand* index = UseRegisterOrConstantAtStart(instr->index());
|
| - LOperand* temp = TempRegister();
|
| - LSeqStringGetChar* result =
|
| - new(zone()) LSeqStringGetChar(string, index, temp);
|
| - return DefineAsRegister(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoSeqStringSetChar(HSeqStringSetChar* instr) {
|
| - LOperand* string = UseRegister(instr->string());
|
| - LOperand* index = FLAG_debug_code
|
| - ? UseRegister(instr->index())
|
| - : UseRegisterOrConstant(instr->index());
|
| - LOperand* value = UseRegister(instr->value());
|
| - LOperand* context = FLAG_debug_code ? UseFixed(instr->context(), cp) : NULL;
|
| - LOperand* temp = TempRegister();
|
| - LSeqStringSetChar* result =
|
| - new(zone()) LSeqStringSetChar(context, string, index, value, temp);
|
| - return DefineAsRegister(result);
|
| -}
|
| -
|
| -
|
| -HBitwiseBinaryOperation* LChunkBuilder::CanTransformToShiftedOp(HValue* val,
|
| - HValue** left) {
|
| - if (!val->representation().IsInteger32()) return NULL;
|
| - if (!(val->IsBitwise() || val->IsAdd() || val->IsSub())) return NULL;
|
| -
|
| - HBinaryOperation* hinstr = HBinaryOperation::cast(val);
|
| - HValue* hleft = hinstr->left();
|
| - HValue* hright = hinstr->right();
|
| - DCHECK(hleft->representation().Equals(hinstr->representation()));
|
| - DCHECK(hright->representation().Equals(hinstr->representation()));
|
| -
|
| - if (hleft == hright) return NULL;
|
| -
|
| - if ((hright->IsConstant() &&
|
| - LikelyFitsImmField(hinstr, HConstant::cast(hright)->Integer32Value())) ||
|
| - (hinstr->IsCommutative() && hleft->IsConstant() &&
|
| - LikelyFitsImmField(hinstr, HConstant::cast(hleft)->Integer32Value()))) {
|
| - // The constant operand will likely fit in the immediate field. We are
|
| - // better off with
|
| - // lsl x8, x9, #imm
|
| - // add x0, x8, #imm2
|
| - // than with
|
| - // mov x16, #imm2
|
| - // add x0, x16, x9 LSL #imm
|
| - return NULL;
|
| - }
|
| -
|
| - HBitwiseBinaryOperation* shift = NULL;
|
| - // TODO(aleram): We will miss situations where a shift operation is used by
|
| - // different instructions both as a left and right operands.
|
| - if (hright->IsBitwiseBinaryShift() &&
|
| - HBitwiseBinaryOperation::cast(hright)->right()->IsConstant()) {
|
| - shift = HBitwiseBinaryOperation::cast(hright);
|
| - if (left != NULL) {
|
| - *left = hleft;
|
| - }
|
| - } else if (hinstr->IsCommutative() &&
|
| - hleft->IsBitwiseBinaryShift() &&
|
| - HBitwiseBinaryOperation::cast(hleft)->right()->IsConstant()) {
|
| - shift = HBitwiseBinaryOperation::cast(hleft);
|
| - if (left != NULL) {
|
| - *left = hright;
|
| - }
|
| - } else {
|
| - return NULL;
|
| - }
|
| -
|
| - if ((JSShiftAmountFromHConstant(shift->right()) == 0) && shift->IsShr()) {
|
| - // Shifts right by zero can deoptimize.
|
| - return NULL;
|
| - }
|
| -
|
| - return shift;
|
| -}
|
| -
|
| -
|
| -bool LChunkBuilder::ShiftCanBeOptimizedAway(HBitwiseBinaryOperation* shift) {
|
| - if (!shift->representation().IsInteger32()) {
|
| - return false;
|
| - }
|
| - for (HUseIterator it(shift->uses()); !it.Done(); it.Advance()) {
|
| - if (shift != CanTransformToShiftedOp(it.value())) {
|
| - return false;
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::TryDoOpWithShiftedRightOperand(
|
| - HBinaryOperation* instr) {
|
| - HValue* left;
|
| - HBitwiseBinaryOperation* shift = CanTransformToShiftedOp(instr, &left);
|
| -
|
| - if ((shift != NULL) && ShiftCanBeOptimizedAway(shift)) {
|
| - return DoShiftedBinaryOp(instr, left, shift);
|
| - }
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoShiftedBinaryOp(
|
| - HBinaryOperation* hinstr, HValue* hleft, HBitwiseBinaryOperation* hshift) {
|
| - DCHECK(hshift->IsBitwiseBinaryShift());
|
| - DCHECK(!hshift->IsShr() || (JSShiftAmountFromHConstant(hshift->right()) > 0));
|
| -
|
| - LTemplateResultInstruction<1>* res;
|
| - LOperand* left = UseRegisterAtStart(hleft);
|
| - LOperand* right = UseRegisterAtStart(hshift->left());
|
| - LOperand* shift_amount = UseConstant(hshift->right());
|
| - Shift shift_op;
|
| - switch (hshift->opcode()) {
|
| - case HValue::kShl: shift_op = LSL; break;
|
| - case HValue::kShr: shift_op = LSR; break;
|
| - case HValue::kSar: shift_op = ASR; break;
|
| - default: UNREACHABLE(); shift_op = NO_SHIFT;
|
| - }
|
| -
|
| - if (hinstr->IsBitwise()) {
|
| - res = new(zone()) LBitI(left, right, shift_op, shift_amount);
|
| - } else if (hinstr->IsAdd()) {
|
| - res = new(zone()) LAddI(left, right, shift_op, shift_amount);
|
| - } else {
|
| - DCHECK(hinstr->IsSub());
|
| - res = new(zone()) LSubI(left, right, shift_op, shift_amount);
|
| - }
|
| - if (hinstr->CheckFlag(HValue::kCanOverflow)) {
|
| - AssignEnvironment(res);
|
| - }
|
| - return DefineAsRegister(res);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoShift(Token::Value op,
|
| - HBitwiseBinaryOperation* instr) {
|
| - if (instr->representation().IsTagged()) {
|
| - return DoArithmeticT(op, instr);
|
| - }
|
| -
|
| - DCHECK(instr->representation().IsSmiOrInteger32());
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| -
|
| - if (ShiftCanBeOptimizedAway(instr)) {
|
| - return NULL;
|
| - }
|
| -
|
| - LOperand* left = instr->representation().IsSmi()
|
| - ? UseRegister(instr->left())
|
| - : UseRegisterAtStart(instr->left());
|
| - LOperand* right = UseRegisterOrConstantAtStart(instr->right());
|
| -
|
| - // The only shift that can deoptimize is `left >>> 0`, where left is negative.
|
| - // In these cases, the result is a uint32 that is too large for an int32.
|
| - bool right_can_be_zero = !instr->right()->IsConstant() ||
|
| - (JSShiftAmountFromHConstant(instr->right()) == 0);
|
| - bool can_deopt = false;
|
| - if ((op == Token::SHR) && right_can_be_zero) {
|
| - can_deopt = !instr->CheckFlag(HInstruction::kUint32);
|
| - }
|
| -
|
| - LInstruction* result;
|
| - if (instr->representation().IsInteger32()) {
|
| - result = DefineAsRegister(new (zone()) LShiftI(op, left, right, can_deopt));
|
| - } else {
|
| - DCHECK(instr->representation().IsSmi());
|
| - result = DefineAsRegister(new (zone()) LShiftS(op, left, right, can_deopt));
|
| - }
|
| -
|
| - return can_deopt ? AssignEnvironment(result) : result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoRor(HRor* instr) {
|
| - return DoShift(Token::ROR, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoSar(HSar* instr) {
|
| - return DoShift(Token::SAR, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoShl(HShl* instr) {
|
| - return DoShift(Token::SHL, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoShr(HShr* instr) {
|
| - return DoShift(Token::SHR, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) {
|
| - instr->ReplayEnvironment(current_block_->last_environment());
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStackCheck(HStackCheck* instr) {
|
| - if (instr->is_function_entry()) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - return MarkAsCall(new(zone()) LStackCheck(context), instr);
|
| - } else {
|
| - DCHECK(instr->is_backwards_branch());
|
| - LOperand* context = UseAny(instr->context());
|
| - return AssignEnvironment(
|
| - AssignPointerMap(new(zone()) LStackCheck(context)));
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreCodeEntry(HStoreCodeEntry* instr) {
|
| - LOperand* function = UseRegister(instr->function());
|
| - LOperand* code_object = UseRegisterAtStart(instr->code_object());
|
| - LOperand* temp = TempRegister();
|
| - return new(zone()) LStoreCodeEntry(function, code_object, temp);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreContextSlot(HStoreContextSlot* instr) {
|
| - LOperand* temp = TempRegister();
|
| - LOperand* context;
|
| - LOperand* value;
|
| - if (instr->NeedsWriteBarrier()) {
|
| - // TODO(all): Replace these constraints when RecordWriteStub has been
|
| - // rewritten.
|
| - context = UseRegisterAndClobber(instr->context());
|
| - value = UseRegisterAndClobber(instr->value());
|
| - } else {
|
| - context = UseRegister(instr->context());
|
| - value = UseRegister(instr->value());
|
| - }
|
| - LInstruction* result = new(zone()) LStoreContextSlot(context, value, temp);
|
| - if (instr->RequiresHoleCheck() && instr->DeoptimizesOnHole()) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreKeyed(HStoreKeyed* instr) {
|
| - LOperand* key = UseRegisterOrConstant(instr->key());
|
| - LOperand* temp = NULL;
|
| - LOperand* elements = NULL;
|
| - LOperand* val = NULL;
|
| -
|
| - if (!instr->is_fixed_typed_array() &&
|
| - instr->value()->representation().IsTagged() &&
|
| - instr->NeedsWriteBarrier()) {
|
| - // RecordWrite() will clobber all registers.
|
| - elements = UseRegisterAndClobber(instr->elements());
|
| - val = UseRegisterAndClobber(instr->value());
|
| - temp = TempRegister();
|
| - } else {
|
| - elements = UseRegister(instr->elements());
|
| - val = UseRegister(instr->value());
|
| - temp = instr->key()->IsConstant() ? NULL : TempRegister();
|
| - }
|
| -
|
| - if (instr->is_fixed_typed_array()) {
|
| - DCHECK((instr->value()->representation().IsInteger32() &&
|
| - !IsDoubleOrFloatElementsKind(instr->elements_kind())) ||
|
| - (instr->value()->representation().IsDouble() &&
|
| - IsDoubleOrFloatElementsKind(instr->elements_kind())));
|
| - DCHECK(instr->elements()->representation().IsExternal());
|
| - return new(zone()) LStoreKeyedExternal(elements, key, val, temp);
|
| -
|
| - } else if (instr->value()->representation().IsDouble()) {
|
| - DCHECK(instr->elements()->representation().IsTagged());
|
| - return new(zone()) LStoreKeyedFixedDouble(elements, key, val, temp);
|
| -
|
| - } else {
|
| - DCHECK(instr->elements()->representation().IsTagged());
|
| - DCHECK(instr->value()->representation().IsSmiOrTagged() ||
|
| - instr->value()->representation().IsInteger32());
|
| - return new(zone()) LStoreKeyedFixed(elements, key, val, temp);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreKeyedGeneric(HStoreKeyedGeneric* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* object =
|
| - UseFixed(instr->object(), StoreDescriptor::ReceiverRegister());
|
| - LOperand* key = UseFixed(instr->key(), StoreDescriptor::NameRegister());
|
| - LOperand* value = UseFixed(instr->value(), StoreDescriptor::ValueRegister());
|
| -
|
| - DCHECK(instr->object()->representation().IsTagged());
|
| - DCHECK(instr->key()->representation().IsTagged());
|
| - DCHECK(instr->value()->representation().IsTagged());
|
| -
|
| - LOperand* slot = NULL;
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - slot = FixedTemp(VectorStoreICDescriptor::SlotRegister());
|
| - vector = FixedTemp(VectorStoreICDescriptor::VectorRegister());
|
| - }
|
| -
|
| - LStoreKeyedGeneric* result = new (zone())
|
| - LStoreKeyedGeneric(context, object, key, value, slot, vector);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) {
|
| - // TODO(jbramley): It might be beneficial to allow value to be a constant in
|
| - // some cases. x64 makes use of this with FLAG_track_fields, for example.
|
| -
|
| - LOperand* object = UseRegister(instr->object());
|
| - LOperand* value;
|
| - LOperand* temp0 = NULL;
|
| - LOperand* temp1 = NULL;
|
| -
|
| - if (instr->access().IsExternalMemory() ||
|
| - (!FLAG_unbox_double_fields && instr->field_representation().IsDouble())) {
|
| - value = UseRegister(instr->value());
|
| - } else if (instr->NeedsWriteBarrier()) {
|
| - value = UseRegisterAndClobber(instr->value());
|
| - temp0 = TempRegister();
|
| - temp1 = TempRegister();
|
| - } else if (instr->NeedsWriteBarrierForMap()) {
|
| - value = UseRegister(instr->value());
|
| - temp0 = TempRegister();
|
| - temp1 = TempRegister();
|
| - } else {
|
| - value = UseRegister(instr->value());
|
| - temp0 = TempRegister();
|
| - }
|
| -
|
| - return new(zone()) LStoreNamedField(object, value, temp0, temp1);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreNamedGeneric(HStoreNamedGeneric* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* object =
|
| - UseFixed(instr->object(), StoreDescriptor::ReceiverRegister());
|
| - LOperand* value = UseFixed(instr->value(), StoreDescriptor::ValueRegister());
|
| -
|
| - LOperand* slot = NULL;
|
| - LOperand* vector = NULL;
|
| - if (instr->HasVectorAndSlot()) {
|
| - slot = FixedTemp(VectorStoreICDescriptor::SlotRegister());
|
| - vector = FixedTemp(VectorStoreICDescriptor::VectorRegister());
|
| - }
|
| -
|
| - LStoreNamedGeneric* result =
|
| - new (zone()) LStoreNamedGeneric(context, object, value, slot, vector);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreGlobalViaContext(
|
| - HStoreGlobalViaContext* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* value = UseFixed(instr->value(),
|
| - StoreGlobalViaContextDescriptor::ValueRegister());
|
| - DCHECK(instr->slot_index() > 0);
|
| -
|
| - LStoreGlobalViaContext* result =
|
| - new (zone()) LStoreGlobalViaContext(context, value);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStringAdd(HStringAdd* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* left = UseFixed(instr->left(), x1);
|
| - LOperand* right = UseFixed(instr->right(), x0);
|
| -
|
| - LStringAdd* result = new(zone()) LStringAdd(context, left, right);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStringCharCodeAt(HStringCharCodeAt* instr) {
|
| - LOperand* string = UseRegisterAndClobber(instr->string());
|
| - LOperand* index = UseRegisterAndClobber(instr->index());
|
| - LOperand* context = UseAny(instr->context());
|
| - LStringCharCodeAt* result =
|
| - new(zone()) LStringCharCodeAt(context, string, index);
|
| - return AssignPointerMap(DefineAsRegister(result));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStringCharFromCode(HStringCharFromCode* instr) {
|
| - LOperand* char_code = UseRegister(instr->value());
|
| - LOperand* context = UseAny(instr->context());
|
| - LStringCharFromCode* result =
|
| - new(zone()) LStringCharFromCode(context, char_code);
|
| - return AssignPointerMap(DefineAsRegister(result));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStringCompareAndBranch(
|
| - HStringCompareAndBranch* instr) {
|
| - DCHECK(instr->left()->representation().IsTagged());
|
| - DCHECK(instr->right()->representation().IsTagged());
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* left = UseFixed(instr->left(), x1);
|
| - LOperand* right = UseFixed(instr->right(), x0);
|
| - LStringCompareAndBranch* result =
|
| - new(zone()) LStringCompareAndBranch(context, left, right);
|
| - return MarkAsCall(result, instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoSub(HSub* instr) {
|
| - if (instr->representation().IsSmiOrInteger32()) {
|
| - DCHECK(instr->left()->representation().Equals(instr->representation()));
|
| - DCHECK(instr->right()->representation().Equals(instr->representation()));
|
| -
|
| - LInstruction* shifted_operation = TryDoOpWithShiftedRightOperand(instr);
|
| - if (shifted_operation != NULL) {
|
| - return shifted_operation;
|
| - }
|
| -
|
| - LOperand *left;
|
| - if (instr->left()->IsConstant() &&
|
| - (HConstant::cast(instr->left())->Integer32Value() == 0)) {
|
| - left = UseConstant(instr->left());
|
| - } else {
|
| - left = UseRegisterAtStart(instr->left());
|
| - }
|
| - LOperand* right = UseRegisterOrConstantAtStart(instr->right());
|
| - LInstruction* result = instr->representation().IsSmi() ?
|
| - DefineAsRegister(new(zone()) LSubS(left, right)) :
|
| - DefineAsRegister(new(zone()) LSubI(left, right));
|
| - if (instr->CheckFlag(HValue::kCanOverflow)) {
|
| - result = AssignEnvironment(result);
|
| - }
|
| - return result;
|
| - } else if (instr->representation().IsDouble()) {
|
| - return DoArithmeticD(Token::SUB, instr);
|
| - } else {
|
| - return DoArithmeticT(Token::SUB, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoThisFunction(HThisFunction* instr) {
|
| - if (instr->HasNoUses()) {
|
| - return NULL;
|
| - } else {
|
| - return DefineAsRegister(new(zone()) LThisFunction);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoToFastProperties(HToFastProperties* instr) {
|
| - LOperand* object = UseFixed(instr->value(), x0);
|
| - LToFastProperties* result = new(zone()) LToFastProperties(object);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoTransitionElementsKind(
|
| - HTransitionElementsKind* instr) {
|
| - if (IsSimpleMapChangeTransition(instr->from_kind(), instr->to_kind())) {
|
| - LOperand* object = UseRegister(instr->object());
|
| - LTransitionElementsKind* result =
|
| - new(zone()) LTransitionElementsKind(object, NULL,
|
| - TempRegister(), TempRegister());
|
| - return result;
|
| - } else {
|
| - LOperand* object = UseFixed(instr->object(), x0);
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LTransitionElementsKind* result =
|
| - new(zone()) LTransitionElementsKind(object, context, NULL, NULL);
|
| - return MarkAsCall(result, instr);
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoTrapAllocationMemento(
|
| - HTrapAllocationMemento* instr) {
|
| - LOperand* object = UseRegister(instr->object());
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| - LTrapAllocationMemento* result =
|
| - new(zone()) LTrapAllocationMemento(object, temp1, temp2);
|
| - return AssignEnvironment(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoMaybeGrowElements(HMaybeGrowElements* instr) {
|
| - info()->MarkAsDeferredCalling();
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* object = UseRegister(instr->object());
|
| - LOperand* elements = UseRegister(instr->elements());
|
| - LOperand* key = UseRegisterOrConstant(instr->key());
|
| - LOperand* current_capacity = UseRegisterOrConstant(instr->current_capacity());
|
| -
|
| - LMaybeGrowElements* result = new (zone())
|
| - LMaybeGrowElements(context, object, elements, key, current_capacity);
|
| - DefineFixed(result, x0);
|
| - return AssignPointerMap(AssignEnvironment(result));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoTypeof(HTypeof* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* value = UseFixed(instr->value(), x3);
|
| - LTypeof* result = new (zone()) LTypeof(context, value);
|
| - return MarkAsCall(DefineFixed(result, x0), instr);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoTypeofIsAndBranch(HTypeofIsAndBranch* instr) {
|
| - // We only need temp registers in some cases, but we can't dereference the
|
| - // instr->type_literal() handle to test that here.
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| -
|
| - return new(zone()) LTypeofIsAndBranch(
|
| - UseRegister(instr->value()), temp1, temp2);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
|
| - switch (instr->op()) {
|
| - case kMathAbs: {
|
| - Representation r = instr->representation();
|
| - if (r.IsTagged()) {
|
| - // The tagged case might need to allocate a HeapNumber for the result,
|
| - // so it is handled by a separate LInstruction.
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* input = UseRegister(instr->value());
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| - LOperand* temp3 = TempRegister();
|
| - LInstruction* result = DefineAsRegister(
|
| - new(zone()) LMathAbsTagged(context, input, temp1, temp2, temp3));
|
| - return AssignEnvironment(AssignPointerMap(result));
|
| - } else {
|
| - LOperand* input = UseRegisterAtStart(instr->value());
|
| - LInstruction* result = DefineAsRegister(new(zone()) LMathAbs(input));
|
| - if (!r.IsDouble()) result = AssignEnvironment(result);
|
| - return result;
|
| - }
|
| - }
|
| - case kMathExp: {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegister(instr->value());
|
| - LOperand* double_temp1 = TempDoubleRegister();
|
| - LOperand* temp1 = TempRegister();
|
| - LOperand* temp2 = TempRegister();
|
| - LOperand* temp3 = TempRegister();
|
| - LMathExp* result = new(zone()) LMathExp(input, double_temp1,
|
| - temp1, temp2, temp3);
|
| - return DefineAsRegister(result);
|
| - }
|
| - case kMathFloor: {
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegisterAtStart(instr->value());
|
| - if (instr->representation().IsInteger32()) {
|
| - LMathFloorI* result = new(zone()) LMathFloorI(input);
|
| - return AssignEnvironment(AssignPointerMap(DefineAsRegister(result)));
|
| - } else {
|
| - DCHECK(instr->representation().IsDouble());
|
| - LMathFloorD* result = new(zone()) LMathFloorD(input);
|
| - return DefineAsRegister(result);
|
| - }
|
| - }
|
| - case kMathLog: {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseFixedDouble(instr->value(), d0);
|
| - LMathLog* result = new(zone()) LMathLog(input);
|
| - return MarkAsCall(DefineFixedDouble(result, d0), instr);
|
| - }
|
| - case kMathPowHalf: {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegister(instr->value());
|
| - return DefineAsRegister(new(zone()) LMathPowHalf(input));
|
| - }
|
| - case kMathRound: {
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegister(instr->value());
|
| - if (instr->representation().IsInteger32()) {
|
| - LOperand* temp = TempDoubleRegister();
|
| - LMathRoundI* result = new(zone()) LMathRoundI(input, temp);
|
| - return AssignEnvironment(DefineAsRegister(result));
|
| - } else {
|
| - DCHECK(instr->representation().IsDouble());
|
| - LMathRoundD* result = new(zone()) LMathRoundD(input);
|
| - return DefineAsRegister(result);
|
| - }
|
| - }
|
| - case kMathFround: {
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegister(instr->value());
|
| - LMathFround* result = new (zone()) LMathFround(input);
|
| - return DefineAsRegister(result);
|
| - }
|
| - case kMathSqrt: {
|
| - DCHECK(instr->representation().IsDouble());
|
| - DCHECK(instr->value()->representation().IsDouble());
|
| - LOperand* input = UseRegisterAtStart(instr->value());
|
| - return DefineAsRegister(new(zone()) LMathSqrt(input));
|
| - }
|
| - case kMathClz32: {
|
| - DCHECK(instr->representation().IsInteger32());
|
| - DCHECK(instr->value()->representation().IsInteger32());
|
| - LOperand* input = UseRegisterAtStart(instr->value());
|
| - return DefineAsRegister(new(zone()) LMathClz32(input));
|
| - }
|
| - default:
|
| - UNREACHABLE();
|
| - return NULL;
|
| - }
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoUnknownOSRValue(HUnknownOSRValue* instr) {
|
| - // Use an index that corresponds to the location in the unoptimized frame,
|
| - // which the optimized frame will subsume.
|
| - int env_index = instr->index();
|
| - int spill_index = 0;
|
| - if (instr->environment()->is_parameter_index(env_index)) {
|
| - spill_index = chunk_->GetParameterStackSlot(env_index);
|
| - } else {
|
| - spill_index = env_index - instr->environment()->first_local_index();
|
| - if (spill_index > LUnallocated::kMaxFixedSlotIndex) {
|
| - Retry(kTooManySpillSlotsNeededForOSR);
|
| - spill_index = 0;
|
| - }
|
| - }
|
| - return DefineAsSpilled(new(zone()) LUnknownOSRValue, spill_index);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoUseConst(HUseConst* instr) {
|
| - return NULL;
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoForInPrepareMap(HForInPrepareMap* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - // Assign object to a fixed register different from those already used in
|
| - // LForInPrepareMap.
|
| - LOperand* object = UseFixed(instr->enumerable(), x0);
|
| - LForInPrepareMap* result = new(zone()) LForInPrepareMap(context, object);
|
| - return MarkAsCall(DefineFixed(result, x0), instr, CAN_DEOPTIMIZE_EAGERLY);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoForInCacheArray(HForInCacheArray* instr) {
|
| - LOperand* map = UseRegister(instr->map());
|
| - return AssignEnvironment(DefineAsRegister(new(zone()) LForInCacheArray(map)));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoCheckMapValue(HCheckMapValue* instr) {
|
| - LOperand* value = UseRegisterAtStart(instr->value());
|
| - LOperand* map = UseRegister(instr->map());
|
| - LOperand* temp = TempRegister();
|
| - return AssignEnvironment(new(zone()) LCheckMapValue(value, map, temp));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
|
| - LOperand* object = UseRegisterAtStart(instr->object());
|
| - LOperand* index = UseRegisterAndClobber(instr->index());
|
| - LLoadFieldByIndex* load = new(zone()) LLoadFieldByIndex(object, index);
|
| - LInstruction* result = DefineSameAsFirst(load);
|
| - return AssignPointerMap(result);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) {
|
| - LOperand* receiver = UseRegister(instr->receiver());
|
| - LOperand* function = UseRegister(instr->function());
|
| - LWrapReceiver* result = new(zone()) LWrapReceiver(receiver, function);
|
| - return AssignEnvironment(DefineAsRegister(result));
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoStoreFrameContext(HStoreFrameContext* instr) {
|
| - LOperand* context = UseRegisterAtStart(instr->context());
|
| - return new(zone()) LStoreFrameContext(context);
|
| -}
|
| -
|
| -
|
| -LInstruction* LChunkBuilder::DoAllocateBlockContext(
|
| - HAllocateBlockContext* instr) {
|
| - LOperand* context = UseFixed(instr->context(), cp);
|
| - LOperand* function = UseRegisterAtStart(instr->function());
|
| - LAllocateBlockContext* result =
|
| - new(zone()) LAllocateBlockContext(context, function);
|
| - return MarkAsCall(DefineFixed(result, cp), instr);
|
| -}
|
| -
|
| -
|
| -} // namespace internal
|
| -} // namespace v8
|
|
|
Chromium Code Reviews
Issue 1405363003:
Move Hydrogen and Lithium to src/crankshaft/ (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master