blob: f017dbd63f4af520c1999fa2bf9e901bfd34d6b3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//===-- Template to diff two-input-single-output functions ------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
#define LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
#include "fuzzing/math/Compare.h"
#include <stddef.h>
#include <stdint.h>
template <typename T1, typename T2>
using TwoInputSingleOutputFunc = T1 (*)(T1, T2);
template <typename T1, typename T2>
void TwoInputSingleOutputDiff(TwoInputSingleOutputFunc<T1, T2> func1,
TwoInputSingleOutputFunc<T1, T2> func2,
const uint8_t *data, size_t size) {
constexpr size_t t1Size = sizeof(T1);
if (size < t1Size + sizeof(T2))
return;
T1 x = *reinterpret_cast<const T1 *>(data);
T2 y = *reinterpret_cast<const T2 *>(data + t1Size);
T1 result1 = func1(x, y);
T1 result2 = func2(x, y);
if (!ValuesEqual(result1, result2))
__builtin_trap();
}
#endif // LLVM_LIBC_FUZZING_MATH_TWO_INPUT_SINGLE_OUTPUT_DIFF_H
|
