1 files changed, 119 insertions, 0 deletions
diff --git a/tests/validation/UNIT/SafeIntegerOps.cpp b/tests/validation/UNIT/SafeIntegerOps.cpp
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+++ b/tests/validation/UNIT/SafeIntegerOps.cpp
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+/*
+ * Copyright (c) 2019 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/core/GPUTarget.h"
+#include "arm_compute/core/utils/math/SafeOps.h"
+#include "support/ToolchainSupport.h"
+#include "tests/AssetsLibrary.h"
+#include "tests/Globals.h"
+#include "tests/Utils.h"
+#include "tests/framework/Asserts.h"
+#include "tests/framework/Macros.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+TEST_SUITE(UNIT)
+TEST_SUITE(SafeIntegerOps)
+
+TEST_CASE(IntegerOverflowAdd, framework::DatasetMode::ALL)
+{
+    int32_t val_a  = 0x7FFFFFFF;
+    int32_t val_b  = 0xFF;
+    int32_t result = utils::math::safe_integer_add(val_a, val_b);
+
+    // Check overflow
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::max(), framework::LogLevel::ERRORS);
+
+    val_a  = 0x8000FC24;
+    val_b  = 0x80000024;
+    result = utils::math::safe_integer_add(val_a, val_b);
+
+    // Check underflow
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+}
+
+TEST_CASE(IntegerOverflowSub, framework::DatasetMode::ALL)
+{
+    int32_t val_a  = 0x7FFFFFFF;
+    int32_t val_b  = 0x8000FC24;
+    int32_t result = utils::math::safe_integer_sub(val_a, val_b);
+
+    // Check overflow
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::max(), framework::LogLevel::ERRORS);
+
+    val_a  = 0x80000024;
+    val_b  = 0x7FFFFFFF;
+    result = utils::math::safe_integer_sub(val_a, val_b);
+
+    // Check underflow
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+}
+
+TEST_CASE(IntegerOverflowMul, framework::DatasetMode::ALL)
+{
+    int32_t val_a  = 0xFFFFFFFF;
+    int32_t val_b  = 0x80000000;
+    int32_t result = utils::math::safe_integer_mul(val_a, val_b);
+
+    // Check overflow with -1
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+
+    val_a  = 0x80000000;
+    val_b  = 0xFFFFFFFF;
+    result = utils::math::safe_integer_mul(val_a, val_b);
+
+    // Check overflow with -1
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+
+    // Check overflow
+    val_a  = 0x7000FC24;
+    val_b  = 0x70000024;
+    result = utils::math::safe_integer_mul(val_a, val_b);
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::max(), framework::LogLevel::ERRORS);
+
+    // Check underflow
+    val_a  = 0x7000FC24;
+    val_b  = 0xF0000024;
+    result = utils::math::safe_integer_mul(val_a, val_b);
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+}
+
+TEST_CASE(IntegerOverflowDiv, framework::DatasetMode::ALL)
+{
+    int32_t val_a  = std::numeric_limits<int32_t>::min();
+    int32_t val_b  = 0xFFFFFFFF;
+    int32_t result = utils::math::safe_integer_div(val_a, val_b);
+
+    // Check overflow
+    ARM_COMPUTE_EXPECT(result == std::numeric_limits<int32_t>::min(), framework::LogLevel::ERRORS);
+}
+
+TEST_SUITE_END() // SafeIntegerOps
+TEST_SUITE_END() // UNIT
+} // namespace validation
+} // namespace test
+} // namespace arm_compute