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

src/compiler/simplified-operator.cc

 // Copyright 2012 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/simplified-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 #include "src/types-inl.h"
@@ skipping 124 matching lines @@
 
 std::ostream& operator<<(std::ostream& os, ElementAccess const& access) {
   os << access.base_is_tagged << ", " << access.header_size << ", ";
   access.type->PrintTo(os);
   os << ", " << access.machine_type;
   return os;
 }
 
 
 const FieldAccess& FieldAccessOf(const Operator* op) {
-  DCHECK_NOT_NULL(op);
+  DCHECK(op);
   DCHECK(op->opcode() == IrOpcode::kLoadField ||
          op->opcode() == IrOpcode::kStoreField);
   return OpParameter<FieldAccess>(op);
 }
 
 
 const ElementAccess& ElementAccessOf(const Operator* op) {
-  DCHECK_NOT_NULL(op);
+  DCHECK(op);
   DCHECK(op->opcode() == IrOpcode::kLoadElement ||
          op->opcode() == IrOpcode::kStoreElement);
   return OpParameter<ElementAccess>(op);
 }
 
 
 #define PURE_OP_LIST(V)                                 \
   V(AnyToBoolean, Operator::kNoProperties, 1)           \
   V(BooleanNot, Operator::kNoProperties, 1)             \
   V(BooleanToNumber, Operator::kNoProperties, 1)        \
@@ skipping 119 matching lines @@
         Operator1<Type>(IrOpcode::k##Name, Operator::kNoThrow | properties,    \
                         #Name, value_input_count, 1, control_input_count,      \
                         output_count, 1, 0, access);                           \
   }
 ACCESS_OP_LIST(ACCESS)
 #undef ACCESS
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8