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/*
* Copyright 2023 WebAssembly Community Group participants
*
* 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 "analysis/lattices/bool.h"
#include "analysis/lattices/int.h"
#include "gtest/gtest.h"
using namespace wasm;
TEST(BoolLattice, GetBottom) {
analysis::Bool lattice;
EXPECT_FALSE(lattice.getBottom());
}
TEST(BoolLattice, Compare) {
analysis::Bool lattice;
EXPECT_EQ(lattice.compare(false, false), analysis::EQUAL);
EXPECT_EQ(lattice.compare(false, true), analysis::LESS);
EXPECT_EQ(lattice.compare(true, false), analysis::GREATER);
EXPECT_EQ(lattice.compare(true, true), analysis::EQUAL);
}
TEST(BoolLattice, Join) {
analysis::Bool lattice;
bool elem = false;
EXPECT_FALSE(lattice.join(elem, false));
ASSERT_FALSE(elem);
EXPECT_TRUE(lattice.join(elem, true));
ASSERT_TRUE(elem);
EXPECT_FALSE(lattice.join(elem, false));
ASSERT_TRUE(elem);
EXPECT_FALSE(lattice.join(elem, true));
ASSERT_TRUE(elem);
}
TEST(IntLattice, GetBottom) {
analysis::Int32 int32;
EXPECT_EQ(int32.getBottom(), (int32_t)(1ll << 31));
analysis::Int64 int64;
EXPECT_EQ(int64.getBottom(), (int64_t)(1ll << 63));
analysis::UInt32 uint32;
EXPECT_EQ(uint32.getBottom(), (uint32_t)0);
analysis::UInt64 uint64;
EXPECT_EQ(uint64.getBottom(), (uint32_t)0);
}
TEST(IntLattice, Compare) {
analysis::Int32 int32;
EXPECT_EQ(int32.compare(-5, 42), analysis::LESS);
EXPECT_EQ(int32.compare(42, -5), analysis::GREATER);
EXPECT_EQ(int32.compare(42, 42), analysis::EQUAL);
}
TEST(IntLattice, Join) {
analysis::Int32 int32;
int elem = 0;
EXPECT_FALSE(int32.join(elem, -10));
ASSERT_EQ(elem, 0);
EXPECT_FALSE(int32.join(elem, 0));
ASSERT_EQ(elem, 0);
EXPECT_TRUE(int32.join(elem, 100));
ASSERT_EQ(elem, 100);
}
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