Spliting out TyperCache into ZoneTypeCache to share with AsmTyper.

src/zone-type-cache.h

+// 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_