// 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. #ifndef V8_ZONE_TYPE_CACHE_H_ #define V8_ZONE_TYPE_CACHE_H_ #include "src/types.h" namespace v8 { namespace internal { class ZoneTypeCache final { private: // This has to be first for the initialization magic to work. Zone zone_; public: ZoneTypeCache() = default; Type* const kInt8 = CreateNative(CreateRange<int8_t>(), Type::UntaggedSigned8()); Type* const kUint8 = CreateNative(CreateRange<uint8_t>(), Type::UntaggedUnsigned8()); Type* const kUint8Clamped = kUint8; Type* const kInt16 = CreateNative(CreateRange<int16_t>(), Type::UntaggedSigned16()); Type* const kUint16 = CreateNative(CreateRange<uint16_t>(), Type::UntaggedUnsigned16()); Type* const kInt32 = CreateNative(Type::Signed32(), Type::UntaggedSigned32()); Type* const kUint32 = CreateNative(Type::Unsigned32(), Type::UntaggedUnsigned32()); Type* const kFloat32 = CreateNative(Type::Number(), Type::UntaggedFloat32()); Type* const kFloat64 = CreateNative(Type::Number(), Type::UntaggedFloat64()); Type* const kSingletonZero = CreateRange(0.0, 0.0); Type* const kSingletonOne = CreateRange(1.0, 1.0); Type* const kZeroOrOne = CreateRange(0.0, 1.0); Type* const kZeroish = Type::Union(kSingletonZero, Type::MinusZeroOrNaN(), zone()); Type* const kInteger = CreateRange(-V8_INFINITY, V8_INFINITY); Type* const kWeakint = Type::Union(kInteger, Type::MinusZeroOrNaN(), zone()); Type* const kWeakintFunc1 = Type::Function(kWeakint, Type::Number(), zone()); Type* const kRandomFunc0 = Type::Function(Type::OrderedNumber(), zone()); Type* const kAnyFunc0 = Type::Function(Type::Any(), zone()); Type* const kAnyFunc1 = Type::Function(Type::Any(), Type::Any(), zone()); Type* const kAnyFunc2 = Type::Function(Type::Any(), Type::Any(), Type::Any(), zone()); Type* const kAnyFunc3 = Type::Function(Type::Any(), Type::Any(), Type::Any(), Type::Any(), zone()); Type* const kNumberFunc0 = Type::Function(Type::Number(), zone()); Type* const kNumberFunc1 = Type::Function(Type::Number(), Type::Number(), zone()); Type* const kNumberFunc2 = Type::Function(Type::Number(), Type::Number(), Type::Number(), zone()); Type* const kImulFunc = Type::Function(Type::Signed32(), Type::Integral32(), Type::Integral32(), zone()); Type* const kClz32Func = Type::Function(CreateRange(0, 32), Type::Number(), zone()); #define TYPED_ARRAY(TypeName, type_name, TYPE_NAME, ctype, size) \ Type* const k##TypeName##Array = CreateArray(k##TypeName); TYPED_ARRAYS(TYPED_ARRAY) #undef TYPED_ARRAY private: Type* CreateArray(Type* element) { return Type::Array(element, zone()); } Type* CreateArrayFunction(Type* array) { Type* arg1 = Type::Union(Type::Unsigned32(), Type::Object(), zone()); Type* arg2 = Type::Union(Type::Unsigned32(), Type::Undefined(), zone()); Type* arg3 = arg2; return Type::Function(array, arg1, arg2, arg3, zone()); } Type* CreateNative(Type* semantic, Type* representation) { return Type::Intersect(semantic, representation, zone()); } template <typename T> Type* CreateRange() { return CreateRange(std::numeric_limits<T>::min(), std::numeric_limits<T>::max()); } Type* CreateRange(double min, double max) { return Type::Range(min, max, zone()); } Zone* zone() { return &zone_; } }; } // namespace internal } // namespace v8 #endif // V8_ZONE_TYPE_CACHE_H_