b6bc9d72f6
This is step 4 of https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
//===-- Unittests for asinf
|
|
//------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "src/__support/FPUtil/FPBits.h"
|
|
#include "src/errno/libc_errno.h"
|
|
#include "src/math/asinf.h"
|
|
#include "test/UnitTest/FPMatcher.h"
|
|
#include "test/UnitTest/Test.h"
|
|
#include "utils/MPFRWrapper/MPFRUtils.h"
|
|
#include <math.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
|
|
using FPBits = LIBC_NAMESPACE::fputil::FPBits<float>;
|
|
|
|
namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
|
|
|
|
DECLARE_SPECIAL_CONSTANTS(float)
|
|
|
|
TEST(LlvmLibcAsinfTest, SpecialNumbers) {
|
|
libc_errno = 0;
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(aNaN));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::asinf(0.0f));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::asinf(-0.0f));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(inf));
|
|
EXPECT_MATH_ERRNO(EDOM);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(neg_inf));
|
|
EXPECT_MATH_ERRNO(EDOM);
|
|
}
|
|
|
|
TEST(LlvmLibcAsinfTest, InFloatRange) {
|
|
constexpr uint32_t COUNT = 100'000;
|
|
constexpr uint32_t STEP = UINT32_MAX / COUNT;
|
|
for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
|
|
float x = float(FPBits(v));
|
|
if (isnan(x) || isinf(x))
|
|
continue;
|
|
ASSERT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Asin, x,
|
|
LIBC_NAMESPACE::asinf(x), 0.5);
|
|
}
|
|
}
|
|
|
|
TEST(LlvmLibcAsinfTest, SpecificBitPatterns) {
|
|
constexpr int N = 11;
|
|
constexpr uint32_t INPUTS[N] = {
|
|
0x3f000000, // x = 0.5f
|
|
0x3f3504f3, // x = sqrt(2)/2, FE_DOWNWARD
|
|
0x3f3504f4, // x = sqrt(2)/2, FE_UPWARD
|
|
0x3f5db3d7, // x = sqrt(3)/2, FE_DOWNWARD
|
|
0x3f5db3d8, // x = sqrt(3)/2, FE_UPWARD
|
|
0x3f800000, // x = 1.0f
|
|
0x40000000, // x = 2.0f
|
|
0x3d09bf86, // x = 0x1.137f0cp-5f
|
|
0x3de5fa1e, // x = 0x1.cbf43cp-4f
|
|
0x3f083a1a, // x = 0x1.107434p-1f
|
|
0x3f7741b6, // x = 0x1.ee836cp-1f
|
|
};
|
|
|
|
for (int i = 0; i < N; ++i) {
|
|
float x = float(FPBits(INPUTS[i]));
|
|
EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Asin, x,
|
|
LIBC_NAMESPACE::asinf(x), 0.5);
|
|
EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Asin, -x,
|
|
LIBC_NAMESPACE::asinf(-x), 0.5);
|
|
}
|
|
}
|