[turbofan] Move RawMachineAssembler to unittests.

src/compiler/raw-machine-assembler.cc

-// Copyright 2014 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/code-factory.h"
-#include "src/compiler/pipeline.h"
-#include "src/compiler/raw-machine-assembler.h"
-#include "src/compiler/scheduler.h"
-
-namespace v8 {
-namespace internal {
-namespace compiler {
-
-RawMachineAssembler::RawMachineAssembler(Isolate* isolate, Graph* graph,
-                                         const MachineSignature* machine_sig,
-                                         MachineType word,
-                                         MachineOperatorBuilder::Flags flags)
-    : GraphBuilder(isolate, graph),
-      schedule_(new (zone()) Schedule(zone())),
-      machine_(zone(), word, flags),
-      common_(zone()),
-      machine_sig_(machine_sig),
-      call_descriptor_(
-          Linkage::GetSimplifiedCDescriptor(graph->zone(), machine_sig)),
-      parameters_(NULL),
-      current_block_(schedule()->start()) {
-  int param_count = static_cast<int>(parameter_count());
-  Node* s = graph->NewNode(common_.Start(param_count));
-  graph->SetStart(s);
-  if (parameter_count() == 0) return;
-  parameters_ = zone()->NewArray<Node*>(param_count);
-  for (size_t i = 0; i < parameter_count(); ++i) {
-    parameters_[i] =
-        NewNode(common()->Parameter(static_cast<int>(i)), graph->start());
-  }
-}
-
-
-Schedule* RawMachineAssembler::Export() {
-  // Compute the correct codegen order.
-  DCHECK(schedule_->rpo_order()->empty());
-  Scheduler::ComputeSpecialRPO(zone(), schedule_);
-  // Invalidate MachineAssembler.
-  Schedule* schedule = schedule_;
-  schedule_ = NULL;
-  return schedule;
-}
-
-
-Node* RawMachineAssembler::Parameter(size_t index) {
-  DCHECK(index < parameter_count());
-  return parameters_[index];
-}
-
-
-void RawMachineAssembler::Goto(Label* label) {
-  DCHECK(current_block_ != schedule()->end());
-  schedule()->AddGoto(CurrentBlock(), Use(label));
-  current_block_ = NULL;
-}
-
-
-void RawMachineAssembler::Branch(Node* condition, Label* true_val,
-                                 Label* false_val) {
-  DCHECK(current_block_ != schedule()->end());
-  Node* branch = NewNode(common()->Branch(), condition);
-  schedule()->AddBranch(CurrentBlock(), branch, Use(true_val), Use(false_val));
-  current_block_ = NULL;
-}
-
-
-void RawMachineAssembler::Switch(Node* index, Label* default_label,
-                                 int32_t* case_values, Label** case_labels,
-                                 size_t case_count) {
-  DCHECK_NE(schedule()->end(), current_block_);
-  size_t succ_count = case_count + 1;
-  Node* switch_node = NewNode(common()->Switch(succ_count), index);
-  BasicBlock** succ_blocks = zone()->NewArray<BasicBlock*>(succ_count);
-  for (size_t index = 0; index < case_count; ++index) {
-    int32_t case_value = case_values[index];
-    BasicBlock* case_block = Use(case_labels[index]);
-    Node* case_node =
-        graph()->NewNode(common()->IfValue(case_value), switch_node);
-    schedule()->AddNode(case_block, case_node);
-    succ_blocks[index] = case_block;
-  }
-  BasicBlock* default_block = Use(default_label);
-  Node* default_node = graph()->NewNode(common()->IfDefault(), switch_node);
-  schedule()->AddNode(default_block, default_node);
-  succ_blocks[case_count] = default_block;
-  schedule()->AddSwitch(CurrentBlock(), switch_node, succ_blocks, succ_count);
-  current_block_ = nullptr;
-}
-
-
-void RawMachineAssembler::Return(Node* value) {
-  Node* ret = NewNode(common()->Return(), value);
-  schedule()->AddReturn(CurrentBlock(), ret);
-  current_block_ = NULL;
-}
-
-
-Node* RawMachineAssembler::CallFunctionStub0(Node* function, Node* receiver,
-                                             Node* context, Node* frame_state,
-                                             CallFunctionFlags flags) {
-  Callable callable = CodeFactory::CallFunction(isolate(), 0, flags);
-  CallDescriptor* desc = Linkage::GetStubCallDescriptor(
-      isolate(), zone(), callable.descriptor(), 1,
-      CallDescriptor::kNeedsFrameState, Operator::kNoProperties);
-  Node* stub_code = HeapConstant(callable.code());
-  Node* call = graph()->NewNode(common()->Call(desc), stub_code, function,
-                                receiver, context, frame_state);
-  schedule()->AddNode(CurrentBlock(), call);
-  return call;
-}
-
-
-Node* RawMachineAssembler::CallJS0(Node* function, Node* receiver,
-                                   Node* context, Node* frame_state) {
-  CallDescriptor* descriptor = Linkage::GetJSCallDescriptor(
-      zone(), false, 1, CallDescriptor::kNeedsFrameState);
-  Node* call = graph()->NewNode(common()->Call(descriptor), function, receiver,
-                                context, frame_state);
-  schedule()->AddNode(CurrentBlock(), call);
-  return call;
-}
-
-
-Node* RawMachineAssembler::CallRuntime1(Runtime::FunctionId function,
-                                        Node* arg0, Node* context,
-                                        Node* frame_state) {
-  CallDescriptor* descriptor = Linkage::GetRuntimeCallDescriptor(
-      zone(), function, 1, Operator::kNoProperties);
-
-  Node* centry = HeapConstant(CEntryStub(isolate(), 1).GetCode());
-  Node* ref = NewNode(
-      common()->ExternalConstant(ExternalReference(function, isolate())));
-  Node* arity = Int32Constant(1);
-
-  Node* call = graph()->NewNode(common()->Call(descriptor), centry, arg0, ref,
-                                arity, context, frame_state);
-  schedule()->AddNode(CurrentBlock(), call);
-  return call;
-}
-
-
-void RawMachineAssembler::Bind(Label* label) {
-  DCHECK(current_block_ == NULL);
-  DCHECK(!label->bound_);
-  label->bound_ = true;
-  current_block_ = EnsureBlock(label);
-}
-
-
-BasicBlock* RawMachineAssembler::Use(Label* label) {
-  label->used_ = true;
-  return EnsureBlock(label);
-}
-
-
-BasicBlock* RawMachineAssembler::EnsureBlock(Label* label) {
-  if (label->block_ == NULL) label->block_ = schedule()->NewBasicBlock();
-  return label->block_;
-}
-
-
-BasicBlock* RawMachineAssembler::CurrentBlock() {
-  DCHECK(current_block_);
-  return current_block_;
-}
-
-
-Node* RawMachineAssembler::MakeNode(const Operator* op, int input_count,
-                                    Node** inputs, bool incomplete) {
-  DCHECK(ScheduleValid());
-  DCHECK(current_block_ != NULL);
-  Node* node = graph()->NewNode(op, input_count, inputs, incomplete);
-  BasicBlock* block = op->opcode() == IrOpcode::kParameter ? schedule()->start()
-                                                           : CurrentBlock();
-  if (op->opcode() != IrOpcode::kReturn) {
-    schedule()->AddNode(block, node);
-  }
-  return node;
-}
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8