Unify MachineType and RepType.

src/compiler/machine-type.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/machine-type.h"
+#include "src/ostreams.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+#define PRINT(bit)         \
+  if (type & bit) {        \
+    if (before) os << "|"; \
+    os << #bit;            \
+    before = true;         \
+  }
+
+OStream& operator<<(OStream& os, const MachineType& type) {
+  bool before = false;
+  PRINT(kRepBit);
+  PRINT(kRepWord8);
+  PRINT(kRepWord16);
+  PRINT(kRepWord32);
+  PRINT(kRepWord64);
+  PRINT(kRepFloat64);
+  PRINT(kRepTagged);
+
+  PRINT(kTypeBool);
+  PRINT(kTypeInt32);
+  PRINT(kTypeUint32);
+  PRINT(kTypeInt64);
+  PRINT(kTypeUint64);
+  PRINT(kTypeNumber);
+  PRINT(kTypeAny);
+  return os;
+}
+}
+}
+}  // namespace v8::internal::compiler