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// Copyright 2012 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/simplified-operator.h"
#include "src/base/lazy-instance.h"
#include "src/compiler/opcodes.h"
#include "src/compiler/operator.h"
#include "src/types-inl.h"
namespace v8 {
namespace internal {
namespace compiler {
OStream& operator<<(OStream& os, BaseTaggedness base_taggedness) {
switch (base_taggedness) {
case kUntaggedBase:
return os << "untagged base";
case kTaggedBase:
return os << "tagged base";
}
UNREACHABLE();
return os;
}
bool operator==(ElementAccess const& lhs, ElementAccess const& rhs) {
return lhs.base_is_tagged == rhs.base_is_tagged &&
lhs.header_size == rhs.header_size && lhs.type == rhs.type &&
lhs.machine_type == rhs.machine_type;
}
bool operator!=(ElementAccess const& lhs, ElementAccess const& rhs) {
return !(lhs == rhs);
}
OStream& operator<<(OStream& os, ElementAccess const& access) {
os << "[" << access.base_is_tagged << ", " << access.header_size << ", ";
access.type->PrintTo(os);
os << ", " << access.machine_type << "]";
return os;
}
const FieldAccess& FieldAccessOf(const Operator* op) {
DCHECK_NOT_NULL(op);
DCHECK(op->opcode() == IrOpcode::kLoadField ||
op->opcode() == IrOpcode::kStoreField);
return OpParameter<FieldAccess>(op);
}
const ElementAccess& ElementAccessOf(const Operator* op) {
DCHECK_NOT_NULL(op);
DCHECK(op->opcode() == IrOpcode::kLoadElement ||
op->opcode() == IrOpcode::kStoreElement);
return OpParameter<ElementAccess>(op);
}
// Specialization for static parameters of type {FieldAccess}.
template <>
struct StaticParameterTraits<FieldAccess> {
static OStream& PrintTo(OStream& os, const FieldAccess& val) {
return os << val.offset;
}
static int HashCode(const FieldAccess& val) {
return (val.offset < 16) | (val.machine_type & 0xffff);
}
static bool Equals(const FieldAccess& lhs, const FieldAccess& rhs) {
return lhs.base_is_tagged == rhs.base_is_tagged &&
lhs.offset == rhs.offset && lhs.machine_type == rhs.machine_type &&
lhs.type->Is(rhs.type);
}
};
// Specialization for static parameters of type {ElementAccess}.
template <>
struct StaticParameterTraits<ElementAccess> {
static OStream& PrintTo(OStream& os, const ElementAccess& access) {
return os << access;
}
static int HashCode(const ElementAccess& access) {
return (access.header_size < 16) | (access.machine_type & 0xffff);
}
static bool Equals(const ElementAccess& lhs, const ElementAccess& rhs) {
return lhs.base_is_tagged == rhs.base_is_tagged &&
lhs.header_size == rhs.header_size &&
lhs.machine_type == rhs.machine_type && lhs.type->Is(rhs.type);
}
};
#define PURE_OP_LIST(V) \
V(BooleanNot, Operator::kNoProperties, 1) \
V(BooleanToNumber, Operator::kNoProperties, 1) \
V(NumberEqual, Operator::kCommutative, 2) \
V(NumberLessThan, Operator::kNoProperties, 2) \
V(NumberLessThanOrEqual, Operator::kNoProperties, 2) \
V(NumberAdd, Operator::kCommutative, 2) \
V(NumberSubtract, Operator::kNoProperties, 2) \
V(NumberMultiply, Operator::kCommutative, 2) \
V(NumberDivide, Operator::kNoProperties, 2) \
V(NumberModulus, Operator::kNoProperties, 2) \
V(NumberToInt32, Operator::kNoProperties, 1) \
V(NumberToUint32, Operator::kNoProperties, 1) \
V(StringEqual, Operator::kCommutative, 2) \
V(StringLessThan, Operator::kNoProperties, 2) \
V(StringLessThanOrEqual, Operator::kNoProperties, 2) \
V(StringAdd, Operator::kNoProperties, 2) \
V(ChangeTaggedToInt32, Operator::kNoProperties, 1) \
V(ChangeTaggedToUint32, Operator::kNoProperties, 1) \
V(ChangeTaggedToFloat64, Operator::kNoProperties, 1) \
V(ChangeInt32ToTagged, Operator::kNoProperties, 1) \
V(ChangeUint32ToTagged, Operator::kNoProperties, 1) \
V(ChangeFloat64ToTagged, Operator::kNoProperties, 1) \
V(ChangeBoolToBit, Operator::kNoProperties, 1) \
V(ChangeBitToBool, Operator::kNoProperties, 1)
#define ACCESS_OP_LIST(V) \
V(LoadField, FieldAccess, Operator::kNoWrite, 1, 1) \
V(StoreField, FieldAccess, Operator::kNoRead, 2, 0) \
V(LoadElement, ElementAccess, Operator::kNoWrite, 3, 1) \
V(StoreElement, ElementAccess, Operator::kNoRead, 4, 0)
struct SimplifiedOperatorBuilderImpl FINAL {
#define PURE(Name, properties, input_count) \
struct Name##Operator FINAL : public SimpleOperator { \
Name##Operator() \
: SimpleOperator(IrOpcode::k##Name, Operator::kPure | properties, \
input_count, 1, #Name) {} \
}; \
Name##Operator k##Name;
PURE_OP_LIST(PURE)
#undef PURE
};
static base::LazyInstance<SimplifiedOperatorBuilderImpl>::type kImpl =
LAZY_INSTANCE_INITIALIZER;
SimplifiedOperatorBuilder::SimplifiedOperatorBuilder(Zone* zone)
: impl_(kImpl.Get()), zone_(zone) {}
#define PURE(Name, properties, input_count) \
const Operator* SimplifiedOperatorBuilder::Name() { return &impl_.k##Name; }
PURE_OP_LIST(PURE)
#undef PURE
const Operator* SimplifiedOperatorBuilder::ReferenceEqual(Type* type) {
// TODO(titzer): What about the type parameter?
return new (zone()) SimpleOperator(IrOpcode::kReferenceEqual,
Operator::kCommutative | Operator::kPure,
2, 1, "ReferenceEqual");
}
#define ACCESS(Name, Type, properties, input_count, output_count) \
const Operator* SimplifiedOperatorBuilder::Name(const Type& access) { \
return new (zone()) \
Operator1<Type>(IrOpcode::k##Name, Operator::kNoThrow | properties, \
input_count, output_count, #Name, access); \
}
ACCESS_OP_LIST(ACCESS)
#undef ACCESS
} // namespace compiler
} // namespace internal
} // namespace v8
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