82451d0b13
Fuzz tests were previously in the wrong format, updated them to correct format. --------- Co-authored-by: Sriya Pratipati <sriyap@google.com>
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===-- exp_fuzz.cpp ------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// Fuzzing test for llvm-libc exp implementation.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "src/math/exp.h"
|
|
#include "utils/MPFRWrapper/mpfr_inc.h"
|
|
#include <cstdint>
|
|
#include <cstring>
|
|
#include <iostream>
|
|
#include <math.h>
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
|
|
mpfr_t input;
|
|
mpfr_init2(input, 53);
|
|
for (size_t i = 0; i < size / sizeof(double); ++i) {
|
|
double x;
|
|
std::memcpy(&x, data, sizeof(double));
|
|
data += sizeof(double);
|
|
|
|
// remove NaN and inf
|
|
if (isnan(x) || isinf(x))
|
|
continue;
|
|
// signed zeros already tested in unit tests
|
|
if (signbit(x) && x == 0.0)
|
|
continue;
|
|
|
|
mpfr_set_d(input, x, MPFR_RNDN);
|
|
int output = mpfr_exp(input, input, MPFR_RNDN);
|
|
mpfr_subnormalize(input, output, MPFR_RNDN);
|
|
double to_compare = mpfr_get_d(input, MPFR_RNDN);
|
|
|
|
double result = LIBC_NAMESPACE::exp(x);
|
|
|
|
if (result != to_compare) {
|
|
std::cout << std::hexfloat << "Failing input: " << x << std::endl;
|
|
std::cout << std::hexfloat << "Failing output: " << result << std::endl;
|
|
std::cout << std::hexfloat << "Expected: " << to_compare << std::endl;
|
|
__builtin_trap();
|
|
}
|
|
}
|
|
mpfr_clear(input);
|
|
return 0;
|
|
}
|