[turbofan] Stand-alone deferred block splitting - full.

test/unittests/compiler/instruction-sequence-unittest.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/base/utils/random-number-generator.h"
 #include "src/compiler/pipeline.h"
 #include "test/unittests/compiler/instruction-sequence-unittest.h"
 #include "test/unittests/test-utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
@@ skipping 75 matching lines @@
 
 
 void InstructionSequenceTest::EndLoop() {
   CHECK(current_block_ == nullptr);
   CHECK(!loop_blocks_.empty());
   CHECK_EQ(0, loop_blocks_.back().expected_blocks_);
   loop_blocks_.pop_back();
 }
 
 
-void InstructionSequenceTest::StartBlock() {
+void InstructionSequenceTest::StartBlock(bool deferred) {
   block_returns_ = false;
-  NewBlock();
+  NewBlock(deferred);
 }
 
 
 Instruction* InstructionSequenceTest::EndBlock(BlockCompletion completion) {
   Instruction* result = nullptr;
   if (block_returns_) {
     CHECK(completion.type_ == kBlockEnd || completion.type_ == kFallThrough);
     completion.type_ = kBlockEnd;
   }
   switch (completion.type_) {
@@ skipping 292 matching lines @@
       CHECK(0 <= op.value_ && op.value_ < num_general_registers_);
       return Unallocated(op, UnallocatedOperand::FIXED_REGISTER, op.value_);
     default:
       break;
   }
   CHECK(false);
   return InstructionOperand();
 }
 
 
-InstructionBlock* InstructionSequenceTest::NewBlock() {
+InstructionBlock* InstructionSequenceTest::NewBlock(bool deferred) {
   CHECK(current_block_ == nullptr);
   Rpo rpo = Rpo::FromInt(static_cast<int>(instruction_blocks_.size()));
   Rpo loop_header = Rpo::Invalid();
   Rpo loop_end = Rpo::Invalid();
   if (!loop_blocks_.empty()) {
     auto& loop_data = loop_blocks_.back();
     // This is a loop header.
     if (!loop_data.loop_header_.IsValid()) {
       loop_end = Rpo::FromInt(rpo.ToInt() + loop_data.expected_blocks_);
       loop_data.expected_blocks_--;
       loop_data.loop_header_ = rpo;
     } else {
       // This is a loop body.
       CHECK_NE(0, loop_data.expected_blocks_);
       // TODO(dcarney): handle nested loops.
       loop_data.expected_blocks_--;
       loop_header = loop_data.loop_header_;
     }
   }
   // Construct instruction block.
   auto instruction_block = new (zone())
-      InstructionBlock(zone(), rpo, loop_header, loop_end, false, false);
+      InstructionBlock(zone(), rpo, loop_header, loop_end, deferred, false);
   instruction_blocks_.push_back(instruction_block);
   current_block_ = instruction_block;
   sequence()->StartBlock(rpo);
   return instruction_block;
 }
 
 
 void InstructionSequenceTest::WireBlocks() {
   CHECK(!current_block());
   CHECK(instruction_blocks_.size() == completions_.size());
@@ skipping 48 matching lines @@
 
 
 Instruction* InstructionSequenceTest::AddInstruction(Instruction* instruction) {
   sequence()->AddInstruction(instruction);
   return instruction;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8