derek.holloway
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39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//===-- Template to diff two-input-single-output functions ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
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#define LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
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#include "fuzzing/math/Compare.h"
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#include <stddef.h>
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#include <stdint.h>
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template <typename T1, typename T2>
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using TwoInputSingleOutputFunc = T1 (*)(T1, T2);
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template <typename T1, typename T2>
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void TwoInputSingleOutputDiff(TwoInputSingleOutputFunc<T1, T2> func1,
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TwoInputSingleOutputFunc<T1, T2> func2,
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const uint8_t *data, size_t size) {
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constexpr size_t t1Size = sizeof(T1);
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if (size < t1Size + sizeof(T2))
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return;
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T1 x = *reinterpret_cast<const T1 *>(data);
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T2 y = *reinterpret_cast<const T2 *>(data + t1Size);
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T1 result1 = func1(x, y);
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T1 result2 = func2(x, y);
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if (!ValuesEqual(result1, result2))
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__builtin_trap();
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}
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#endif // LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
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