[TypeFeedbackVector] special ic slots for interpreter compare/binary ops.

src/compiler/type-hints.h

-// Copyright 2015 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_TYPE_HINTS_H_
-#define V8_COMPILER_TYPE_HINTS_H_
-
-#include "src/base/flags.h"
-#include "src/utils.h"
-
-namespace v8 {
-namespace internal {
-namespace compiler {
-
-// Type hints for an binary operation.
-enum class BinaryOperationHint : uint8_t {
-  kNone,
-  kSignedSmall,
-  kSigned32,
-  kNumberOrOddball,
-  kString,
-  kAny
-};
-
-inline size_t hash_value(BinaryOperationHint hint) {
-  return static_cast<unsigned>(hint);
-}
-
-std::ostream& operator<<(std::ostream&, BinaryOperationHint);
-
-// Type hints for an compare operation.
-enum class CompareOperationHint : uint8_t {
-  kNone,
-  kSignedSmall,
-  kNumber,
-  kNumberOrOddball,
-  kAny
-};
-
-inline size_t hash_value(CompareOperationHint hint) {
-  return static_cast<unsigned>(hint);
-}
-
-std::ostream& operator<<(std::ostream&, CompareOperationHint);
-
-// Type hints for the ToBoolean type conversion.
-enum class ToBooleanHint : uint16_t {
-  kNone = 0u,
-  kUndefined = 1u << 0,
-  kBoolean = 1u << 1,
-  kNull = 1u << 2,
-  kSmallInteger = 1u << 3,
-  kReceiver = 1u << 4,
-  kString = 1u << 5,
-  kSymbol = 1u << 6,
-  kHeapNumber = 1u << 7,
-  kSimdValue = 1u << 8,
-  kAny = kUndefined | kBoolean | kNull | kSmallInteger | kReceiver | kString |
-         kSymbol | kHeapNumber | kSimdValue
-};
-
-std::ostream& operator<<(std::ostream&, ToBooleanHint);
-
-typedef base::Flags<ToBooleanHint, uint16_t> ToBooleanHints;
-
-std::ostream& operator<<(std::ostream&, ToBooleanHints);
-
-DEFINE_OPERATORS_FOR_FLAGS(ToBooleanHints)
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_COMPILER_TYPE_HINTS_H_