v8/test/unittests/compiler/simplified-operator-unittest.cc

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// 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.
#include "src/compiler/opcodes.h"
#include "src/compiler/operator.h"
#include "src/compiler/operator-properties.h"
#include "src/compiler/simplified-operator.h"
#include "src/types-inl.h"
#include "test/unittests/test-utils.h"
namespace v8 {
namespace internal {
namespace compiler {
// -----------------------------------------------------------------------------
// Pure operators.
namespace {
struct PureOperator {
const Operator* (SimplifiedOperatorBuilder::*constructor)();
IrOpcode::Value opcode;
Operator::Properties properties;
int value_input_count;
};
std::ostream& operator<<(std::ostream& os, const PureOperator& pop) {
return os << IrOpcode::Mnemonic(pop.opcode);
}
const PureOperator kPureOperators[] = {
#define PURE(Name, properties, input_count) \
{ \
&SimplifiedOperatorBuilder::Name, IrOpcode::k##Name, \
Operator::kPure | properties, input_count \
}
PURE(BooleanNot, Operator::kNoProperties, 1),
PURE(BooleanToNumber, Operator::kNoProperties, 1),
PURE(NumberEqual, Operator::kCommutative, 2),
PURE(NumberLessThan, Operator::kNoProperties, 2),
PURE(NumberLessThanOrEqual, Operator::kNoProperties, 2),
PURE(NumberAdd, Operator::kCommutative, 2),
PURE(NumberSubtract, Operator::kNoProperties, 2),
PURE(NumberMultiply, Operator::kCommutative, 2),
PURE(NumberDivide, Operator::kNoProperties, 2),
PURE(NumberModulus, Operator::kNoProperties, 2),
PURE(NumberToInt32, Operator::kNoProperties, 1),
PURE(NumberToUint32, Operator::kNoProperties, 1),
PURE(PlainPrimitiveToNumber, Operator::kNoProperties, 1),
PURE(StringEqual, Operator::kCommutative, 2),
PURE(StringLessThan, Operator::kNoProperties, 2),
PURE(StringLessThanOrEqual, Operator::kNoProperties, 2),
PURE(ChangeTaggedToInt32, Operator::kNoProperties, 1),
PURE(ChangeTaggedToUint32, Operator::kNoProperties, 1),
PURE(ChangeTaggedToFloat64, Operator::kNoProperties, 1),
PURE(ChangeInt32ToTagged, Operator::kNoProperties, 1),
PURE(ChangeUint32ToTagged, Operator::kNoProperties, 1),
PURE(ChangeFloat64ToTagged, Operator::kNoProperties, 1),
PURE(ChangeBoolToBit, Operator::kNoProperties, 1),
PURE(ChangeBitToBool, Operator::kNoProperties, 1),
PURE(ObjectIsSmi, Operator::kNoProperties, 1),
PURE(ObjectIsNonNegativeSmi, Operator::kNoProperties, 1)
#undef PURE
};
} // namespace
class SimplifiedPureOperatorTest
: public TestWithZone,
public ::testing::WithParamInterface<PureOperator> {};
TEST_P(SimplifiedPureOperatorTest, InstancesAreGloballyShared) {
const PureOperator& pop = GetParam();
SimplifiedOperatorBuilder simplified1(zone());
SimplifiedOperatorBuilder simplified2(zone());
EXPECT_EQ((simplified1.*pop.constructor)(), (simplified2.*pop.constructor)());
}
TEST_P(SimplifiedPureOperatorTest, NumberOfInputsAndOutputs) {
SimplifiedOperatorBuilder simplified(zone());
const PureOperator& pop = GetParam();
const Operator* op = (simplified.*pop.constructor)();
EXPECT_EQ(pop.value_input_count, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(0, op->ControlInputCount());
EXPECT_EQ(pop.value_input_count, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(1, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
TEST_P(SimplifiedPureOperatorTest, OpcodeIsCorrect) {
SimplifiedOperatorBuilder simplified(zone());
const PureOperator& pop = GetParam();
const Operator* op = (simplified.*pop.constructor)();
EXPECT_EQ(pop.opcode, op->opcode());
}
TEST_P(SimplifiedPureOperatorTest, Properties) {
SimplifiedOperatorBuilder simplified(zone());
const PureOperator& pop = GetParam();
const Operator* op = (simplified.*pop.constructor)();
EXPECT_EQ(pop.properties, op->properties() & pop.properties);
}
INSTANTIATE_TEST_CASE_P(SimplifiedOperatorTest, SimplifiedPureOperatorTest,
::testing::ValuesIn(kPureOperators));
// -----------------------------------------------------------------------------
// Buffer access operators.
namespace {
const ExternalArrayType kExternalArrayTypes[] = {
kExternalUint8Array, kExternalInt8Array, kExternalUint16Array,
kExternalInt16Array, kExternalUint32Array, kExternalInt32Array,
kExternalFloat32Array, kExternalFloat64Array};
} // namespace
class SimplifiedBufferAccessOperatorTest
: public TestWithZone,
public ::testing::WithParamInterface<ExternalArrayType> {};
TEST_P(SimplifiedBufferAccessOperatorTest, InstancesAreGloballyShared) {
BufferAccess const access(GetParam());
SimplifiedOperatorBuilder simplified1(zone());
SimplifiedOperatorBuilder simplified2(zone());
EXPECT_EQ(simplified1.LoadBuffer(access), simplified2.LoadBuffer(access));
EXPECT_EQ(simplified1.StoreBuffer(access), simplified2.StoreBuffer(access));
}
TEST_P(SimplifiedBufferAccessOperatorTest, LoadBuffer) {
SimplifiedOperatorBuilder simplified(zone());
BufferAccess const access(GetParam());
const Operator* op = simplified.LoadBuffer(access);
EXPECT_EQ(IrOpcode::kLoadBuffer, op->opcode());
EXPECT_EQ(Operator::kNoThrow | Operator::kNoWrite, op->properties());
EXPECT_EQ(access, BufferAccessOf(op));
EXPECT_EQ(3, op->ValueInputCount());
EXPECT_EQ(1, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(5, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(1, op->ValueOutputCount());
EXPECT_EQ(1, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
TEST_P(SimplifiedBufferAccessOperatorTest, StoreBuffer) {
SimplifiedOperatorBuilder simplified(zone());
BufferAccess const access(GetParam());
const Operator* op = simplified.StoreBuffer(access);
EXPECT_EQ(IrOpcode::kStoreBuffer, op->opcode());
EXPECT_EQ(Operator::kNoRead | Operator::kNoThrow, op->properties());
EXPECT_EQ(access, BufferAccessOf(op));
EXPECT_EQ(4, op->ValueInputCount());
EXPECT_EQ(1, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(6, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(1, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
INSTANTIATE_TEST_CASE_P(SimplifiedOperatorTest,
SimplifiedBufferAccessOperatorTest,
::testing::ValuesIn(kExternalArrayTypes));
// -----------------------------------------------------------------------------
// Element access operators.
namespace {
const ElementAccess kElementAccesses[] = {
{kTaggedBase, FixedArray::kHeaderSize, Type::Any(), kMachAnyTagged},
{kUntaggedBase, 0, Type::Any(), kMachInt8},
{kUntaggedBase, 0, Type::Any(), kMachInt16},
{kUntaggedBase, 0, Type::Any(), kMachInt32},
{kUntaggedBase, 0, Type::Any(), kMachUint8},
{kUntaggedBase, 0, Type::Any(), kMachUint16},
{kUntaggedBase, 0, Type::Any(), kMachUint32},
{kUntaggedBase, 0, Type::Signed32(), kMachInt8},
{kUntaggedBase, 0, Type::Unsigned32(), kMachUint8},
{kUntaggedBase, 0, Type::Signed32(), kMachInt16},
{kUntaggedBase, 0, Type::Unsigned32(), kMachUint16},
{kUntaggedBase, 0, Type::Signed32(), kMachInt32},
{kUntaggedBase, 0, Type::Unsigned32(), kMachUint32},
{kUntaggedBase, 0, Type::Number(), kRepFloat32},
{kUntaggedBase, 0, Type::Number(), kRepFloat64},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Signed32(),
kMachInt8},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Unsigned32(),
kMachUint8},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Signed32(),
kMachInt16},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Unsigned32(),
kMachUint16},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Signed32(),
kMachInt32},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Unsigned32(),
kMachUint32},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Number(),
kRepFloat32},
{kTaggedBase, FixedTypedArrayBase::kDataOffset, Type::Number(),
kRepFloat64}};
} // namespace
class SimplifiedElementAccessOperatorTest
: public TestWithZone,
public ::testing::WithParamInterface<ElementAccess> {};
TEST_P(SimplifiedElementAccessOperatorTest, LoadElement) {
SimplifiedOperatorBuilder simplified(zone());
const ElementAccess& access = GetParam();
const Operator* op = simplified.LoadElement(access);
EXPECT_EQ(IrOpcode::kLoadElement, op->opcode());
EXPECT_EQ(Operator::kNoThrow | Operator::kNoWrite, op->properties());
EXPECT_EQ(access, ElementAccessOf(op));
EXPECT_EQ(2, op->ValueInputCount());
EXPECT_EQ(1, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(4, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(1, op->ValueOutputCount());
EXPECT_EQ(1, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
TEST_P(SimplifiedElementAccessOperatorTest, StoreElement) {
SimplifiedOperatorBuilder simplified(zone());
const ElementAccess& access = GetParam();
const Operator* op = simplified.StoreElement(access);
EXPECT_EQ(IrOpcode::kStoreElement, op->opcode());
EXPECT_EQ(Operator::kNoRead | Operator::kNoThrow, op->properties());
EXPECT_EQ(access, ElementAccessOf(op));
EXPECT_EQ(3, op->ValueInputCount());
EXPECT_EQ(1, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(5, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(1, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
INSTANTIATE_TEST_CASE_P(SimplifiedOperatorTest,
SimplifiedElementAccessOperatorTest,
::testing::ValuesIn(kElementAccesses));
} // namespace compiler
} // namespace internal
} // namespace v8