Move Hydrogen and Lithium to src/crankshaft/

src/hydrogen-osr.cc

-// 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/hydrogen.h"
-#include "src/hydrogen-osr.h"
-
-namespace v8 {
-namespace internal {
-
-// True iff. we are compiling for OSR and the statement is the entry.
-bool HOsrBuilder::HasOsrEntryAt(IterationStatement* statement) {
-  return statement->OsrEntryId() == builder_->current_info()->osr_ast_id();
-}
-
-
-HBasicBlock* HOsrBuilder::BuildOsrLoopEntry(IterationStatement* statement) {
-  DCHECK(HasOsrEntryAt(statement));
-
-  Zone* zone = builder_->zone();
-  HGraph* graph = builder_->graph();
-
-  // only one OSR point per compile is allowed.
-  DCHECK(graph->osr() == NULL);
-
-  // remember this builder as the one OSR builder in the graph.
-  graph->set_osr(this);
-
-  HBasicBlock* non_osr_entry = graph->CreateBasicBlock();
-  osr_entry_ = graph->CreateBasicBlock();
-  HValue* true_value = graph->GetConstantTrue();
-  HBranch* test = builder_->New<HBranch>(true_value, ToBooleanStub::Types(),
-                                         non_osr_entry, osr_entry_);
-  builder_->FinishCurrentBlock(test);
-
-  HBasicBlock* loop_predecessor = graph->CreateBasicBlock();
-  builder_->Goto(non_osr_entry, loop_predecessor);
-
-  builder_->set_current_block(osr_entry_);
-  osr_entry_->set_osr_entry();
-  BailoutId osr_entry_id = statement->OsrEntryId();
-
-  HEnvironment *environment = builder_->environment();
-  int first_expression_index = environment->first_expression_index();
-  int length = environment->length();
-  osr_values_ = new(zone) ZoneList<HUnknownOSRValue*>(length, zone);
-
-  for (int i = 0; i < first_expression_index; ++i) {
-    HUnknownOSRValue* osr_value
-        = builder_->Add<HUnknownOSRValue>(environment, i);
-    environment->Bind(i, osr_value);
-    osr_values_->Add(osr_value, zone);
-  }
-
-  if (first_expression_index != length) {
-    environment->Drop(length - first_expression_index);
-    for (int i = first_expression_index; i < length; ++i) {
-      HUnknownOSRValue* osr_value
-          = builder_->Add<HUnknownOSRValue>(environment, i);
-      environment->Push(osr_value);
-      osr_values_->Add(osr_value, zone);
-    }
-  }
-
-  unoptimized_frame_slots_ =
-      environment->local_count() + environment->push_count();
-
-  // Keep a copy of the old environment, since the OSR values need it
-  // to figure out where exactly they are located in the unoptimized frame.
-  environment = environment->Copy();
-  builder_->current_block()->UpdateEnvironment(environment);
-
-  builder_->Add<HSimulate>(osr_entry_id);
-  builder_->Add<HOsrEntry>(osr_entry_id);
-  HContext* context = builder_->Add<HContext>();
-  environment->BindContext(context);
-  builder_->Goto(loop_predecessor);
-  loop_predecessor->SetJoinId(statement->EntryId());
-  builder_->set_current_block(loop_predecessor);
-
-  // Create the final loop entry
-  osr_loop_entry_ = builder_->BuildLoopEntry();
-  return osr_loop_entry_;
-}
-
-
-void HOsrBuilder::FinishGraph() {
-  // do nothing for now.
-}
-
-
-void HOsrBuilder::FinishOsrValues() {
-  const ZoneList<HPhi*>* phis = osr_loop_entry_->phis();
-  for (int j = 0; j < phis->length(); j++) {
-    HPhi* phi = phis->at(j);
-    if (phi->HasMergedIndex()) {
-      osr_values_->at(phi->merged_index())->set_incoming_value(phi);
-    }
-  }
-}
-
-}  // namespace internal
-}  // namespace v8