Reland "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

src/compiler/instruction.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/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 429 matching lines @@
 
 
 InstructionBlocks* InstructionSequence::InstructionBlocksFor(
     Zone* zone, const Schedule* schedule) {
   InstructionBlocks* blocks = zone->NewArray<InstructionBlocks>(1);
   new (blocks) InstructionBlocks(
       static_cast<int>(schedule->rpo_order()->size()), NULL, zone);
   size_t rpo_number = 0;
   for (BasicBlockVector::const_iterator it = schedule->rpo_order()->begin();
        it != schedule->rpo_order()->end(); ++it, ++rpo_number) {
-    DCHECK_EQ(NULL, (*blocks)[rpo_number]);
+    DCHECK(!(*blocks)[rpo_number]);
     DCHECK((*it)->GetRpoNumber().ToSize() == rpo_number);
     (*blocks)[rpo_number] = InstructionBlockFor(zone, *it);
   }
   ComputeAssemblyOrder(blocks);
   return blocks;
 }
 
 
 void InstructionSequence::ComputeAssemblyOrder(InstructionBlocks* blocks) {
   int ao = 0;
@@ skipping 273 matching lines @@
       os << " B" << succ_block->id();
     }
     os << "\n";
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8