[turbofan] Turn IrOpcode::IsXXX() into range checks.

src/compiler/opcodes.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_OPCODES_H_
 #define V8_COMPILER_OPCODES_H_
 
 // Opcodes for control operators.
 #define INNER_CONTROL_OP_LIST(V) \
   V(Dead)                        \
@@ skipping 257 matching lines @@
 #undef DECLARE_OPCODE
     kLast = -1
 #define COUNT_OPCODE(x) +1
             ALL_OP_LIST(COUNT_OPCODE)
 #undef COUNT_OPCODE
   };
 
   // Returns the mnemonic name of an opcode.
   static char const* Mnemonic(Value value);
 
-  static bool IsJsOpcode(Value val) {
-    switch (val) {
-// TODO(turbofan): make this a range check.
-#define RETURN_NAME(x) \
-  case k##x:           \
-    return true;
-      JS_OP_LIST(RETURN_NAME)
-#undef RETURN_NAME
-      default:
-        return false;
-    }
+  // Returns true if opcode for common operator.
+  static bool IsCommonOpcode(Value value) {
+    return kDead <= value && value <= kProjection;
   }
 
-  static bool IsControlOpcode(Value val) {
-    switch (val) {
-// TODO(turbofan): make this a range check.
-#define RETURN_NAME(x) \
-  case k##x:           \
-    return true;
-      CONTROL_OP_LIST(RETURN_NAME)
-#undef RETURN_NAME
-      default:
-        return false;
-    }
+  // Returns true if opcode for control operator.
+  static bool IsControlOpcode(Value value) {
+    return kDead <= value && value <= kEnd;
   }
 
-  static bool IsLeafOpcode(Value val) {
-    switch (val) {
-// TODO(turbofan): make this a table lookup.
-#define RETURN_NAME(x) \
-  case k##x:           \
-    return true;
-      LEAF_OP_LIST(RETURN_NAME)
-#undef RETURN_NAME
-      default:
-        return false;
-    }
+  // Returns true if opcode for JavaScript operator.
+  static bool IsJsOpcode(Value value) {
+    return kJSEqual <= value && value <= kJSDebugger;
   }
 
-  static bool IsCommonOpcode(Value val) {
-    switch (val) {
-// TODO(turbofan): make this a table lookup or a range check.
-#define RETURN_NAME(x) \
-  case k##x:           \
-    return true;
-      CONTROL_OP_LIST(RETURN_NAME)
-      COMMON_OP_LIST(RETURN_NAME)
-#undef RETURN_NAME
-      default:
-        return false;
-    }
+  // Returns true if opcode for leaf operator.
+  static bool IsLeafOpcode(Value value) {
+    return kInt32Constant <= value && value <= kHeapConstant;
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_