[turbofan] extend register allocator testing with control flow

src/compiler/instruction-selector.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/compiler/instruction-selector.h"
 
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 48 matching lines @@
     VisitBlock(*i);
   }
 
   // Schedule the selected instructions.
   for (BasicBlockVectorIter i = blocks->begin(); i != blocks->end(); ++i) {
     BasicBlock* block = *i;
     InstructionBlock* instruction_block =
         sequence()->InstructionBlockAt(block->GetRpoNumber());
     size_t end = instruction_block->code_end();
     size_t start = instruction_block->code_start();
-    sequence()->StartBlock(block);
+    sequence()->StartBlock(block->GetRpoNumber());
     while (start-- > end) {
       sequence()->AddInstruction(instructions_[start]);
     }
-    sequence()->EndBlock(block);
+    sequence()->EndBlock(block->GetRpoNumber());
   }
 }
 
 
 Instruction* InstructionSelector::Emit(InstructionCode opcode,
                                        InstructionOperand* output,
                                        size_t temp_count,
                                        InstructionOperand** temps) {
   size_t output_count = output == NULL ? 0 : 1;
   return Emit(opcode, output_count, &output, 0, NULL, temp_count, temps);
@@ skipping 1030 matching lines @@
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   return MachineOperatorBuilder::Flag::kNoFlags;
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8