SPIRV-Tools/test/opt/constants_test.cpp

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// Copyright (c) 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/opt/constants.h"
#include <gtest/gtest-param-test.h>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "source/opt/types.h"
namespace spvtools {
namespace opt {
namespace analysis {
namespace {
using ConstantTest = ::testing::Test;
using ::testing::ValuesIn;
template <typename T>
struct GetExtendedValueCase {
bool is_signed;
int width;
std::vector<uint32_t> words;
T expected_value;
};
using GetSignExtendedValueCase = GetExtendedValueCase<int64_t>;
using GetZeroExtendedValueCase = GetExtendedValueCase<uint64_t>;
using GetSignExtendedValueTest =
::testing::TestWithParam<GetSignExtendedValueCase>;
using GetZeroExtendedValueTest =
::testing::TestWithParam<GetZeroExtendedValueCase>;
TEST_P(GetSignExtendedValueTest, Case) {
Integer type(GetParam().width, GetParam().is_signed);
IntConstant value(&type, GetParam().words);
EXPECT_EQ(GetParam().expected_value, value.GetSignExtendedValue());
}
TEST_P(GetZeroExtendedValueTest, Case) {
Integer type(GetParam().width, GetParam().is_signed);
IntConstant value(&type, GetParam().words);
EXPECT_EQ(GetParam().expected_value, value.GetZeroExtendedValue());
}
const uint32_t k32ones = ~uint32_t(0);
const uint64_t k64ones = ~uint64_t(0);
const int64_t kSBillion = 1000 * 1000 * 1000;
const uint64_t kUBillion = 1000 * 1000 * 1000;
INSTANTIATE_TEST_SUITE_P(AtMost32Bits, GetSignExtendedValueTest,
ValuesIn(std::vector<GetSignExtendedValueCase>{
// 4 bits
{false, 4, {0}, 0},
{false, 4, {7}, 7},
{false, 4, {15}, 15},
{true, 4, {0}, 0},
{true, 4, {7}, 7},
{true, 4, {0xfffffff8}, -8},
{true, 4, {k32ones}, -1},
// 16 bits
{false, 16, {0}, 0},
{false, 16, {32767}, 32767},
{false, 16, {32768}, 32768},
{false, 16, {65000}, 65000},
{true, 16, {0}, 0},
{true, 16, {32767}, 32767},
{true, 16, {0xfffffff8}, -8},
{true, 16, {k32ones}, -1},
// 32 bits
{false, 32, {0}, 0},
{false, 32, {1000000}, 1000000},
{true, 32, {0xfffffff8}, -8},
{true, 32, {k32ones}, -1},
}));
INSTANTIATE_TEST_SUITE_P(AtMost64Bits, GetSignExtendedValueTest,
ValuesIn(std::vector<GetSignExtendedValueCase>{
// 48 bits
{false, 48, {0, 0}, 0},
{false, 48, {5, 0}, 5},
{false, 48, {0xfffffff8, k32ones}, -8},
{false, 48, {k32ones, k32ones}, -1},
{false, 48, {0xdcd65000, 1}, 8 * kSBillion},
{true, 48, {0xfffffff8, k32ones}, -8},
{true, 48, {k32ones, k32ones}, -1},
{true, 48, {0xdcd65000, 1}, 8 * kSBillion},
// 64 bits
{false, 64, {12, 0}, 12},
{false, 64, {0xdcd65000, 1}, 8 * kSBillion},
{false, 48, {0xfffffff8, k32ones}, -8},
{false, 64, {k32ones, k32ones}, -1},
{true, 64, {12, 0}, 12},
{true, 64, {0xdcd65000, 1}, 8 * kSBillion},
{true, 48, {0xfffffff8, k32ones}, -8},
{true, 64, {k32ones, k32ones}, -1},
}));
INSTANTIATE_TEST_SUITE_P(AtMost32Bits, GetZeroExtendedValueTest,
ValuesIn(std::vector<GetZeroExtendedValueCase>{
// 4 bits
{false, 4, {0}, 0},
{false, 4, {7}, 7},
{false, 4, {15}, 15},
{true, 4, {0}, 0},
{true, 4, {7}, 7},
{true, 4, {0xfffffff8}, 0xfffffff8},
{true, 4, {k32ones}, k32ones},
// 16 bits
{false, 16, {0}, 0},
{false, 16, {32767}, 32767},
{false, 16, {32768}, 32768},
{false, 16, {65000}, 65000},
{true, 16, {0}, 0},
{true, 16, {32767}, 32767},
{true, 16, {0xfffffff8}, 0xfffffff8},
{true, 16, {k32ones}, k32ones},
// 32 bits
{false, 32, {0}, 0},
{false, 32, {1000000}, 1000000},
{true, 32, {0xfffffff8}, 0xfffffff8},
{true, 32, {k32ones}, k32ones},
}));
INSTANTIATE_TEST_SUITE_P(AtMost64Bits, GetZeroExtendedValueTest,
ValuesIn(std::vector<GetZeroExtendedValueCase>{
// 48 bits
{false, 48, {0, 0}, 0},
{false, 48, {5, 0}, 5},
{false, 48, {0xfffffff8, k32ones}, uint64_t(-8)},
{false, 48, {k32ones, k32ones}, uint64_t(-1)},
{false, 48, {0xdcd65000, 1}, 8 * kUBillion},
{true, 48, {0xfffffff8, k32ones}, uint64_t(-8)},
{true, 48, {k32ones, k32ones}, uint64_t(-1)},
{true, 48, {0xdcd65000, 1}, 8 * kUBillion},
// 64 bits
{false, 64, {12, 0}, 12},
{false, 64, {0xdcd65000, 1}, 8 * kUBillion},
{false, 48, {0xfffffff8, k32ones}, uint64_t(-8)},
{false, 64, {k32ones, k32ones}, k64ones},
{true, 64, {12, 0}, 12},
{true, 64, {0xdcd65000, 1}, 8 * kUBillion},
{true, 48, {0xfffffff8, k32ones}, uint64_t(-8)},
{true, 64, {k32ones, k32ones}, k64ones},
}));
} // namespace
} // namespace analysis
} // namespace opt
} // namespace spvtools