126 lines · cpp
1//===-- Unittests for sincos ----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/FPUtil/FPBits.h"10#include "src/__support/macros/optimization.h"11#include "src/math/sincos.h"12#include "test/UnitTest/FPMatcher.h"13#include "test/UnitTest/Test.h"14#include "utils/MPFRWrapper/MPFRUtils.h"15 16#ifdef LIBC_MATH_HAS_SKIP_ACCURATE_PASS17#define TOLERANCE 118#else19#define TOLERANCE 020#endif // LIBC_MATH_HAS_SKIP_ACCURATE_PASS21 22using LlvmLibcSincosTest = LIBC_NAMESPACE::testing::FPTest<double>;23 24namespace mpfr = LIBC_NAMESPACE::testing::mpfr;25 26using LIBC_NAMESPACE::testing::tlog;27 28#define ASSERT_SINCOS_MATCH_ALL_ROUNDING(input) \29 do { \30 double sin_x, cos_x; \31 namespace mpfr = LIBC_NAMESPACE::testing::mpfr; \32 \33 mpfr::ForceRoundingMode __r1(mpfr::RoundingMode::Nearest); \34 if (__r1.success) { \35 LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \36 ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, TOLERANCE + 0.5, \37 mpfr::RoundingMode::Nearest); \38 ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, TOLERANCE + 0.5, \39 mpfr::RoundingMode::Nearest); \40 } \41 \42 mpfr::ForceRoundingMode __r2(mpfr::RoundingMode::Upward); \43 if (__r2.success) { \44 LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \45 ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, TOLERANCE + 0.5, \46 mpfr::RoundingMode::Upward); \47 ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, TOLERANCE + 0.5, \48 mpfr::RoundingMode::Upward); \49 } \50 \51 mpfr::ForceRoundingMode __r3(mpfr::RoundingMode::Downward); \52 if (__r3.success) { \53 LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \54 ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, TOLERANCE + 0.5, \55 mpfr::RoundingMode::Downward); \56 ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, TOLERANCE + 0.5, \57 mpfr::RoundingMode::Downward); \58 } \59 \60 mpfr::ForceRoundingMode __r4(mpfr::RoundingMode::TowardZero); \61 if (__r4.success) { \62 LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \63 ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, TOLERANCE + 0.5, \64 mpfr::RoundingMode::TowardZero); \65 ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, TOLERANCE + 0.5, \66 mpfr::RoundingMode::TowardZero); \67 } \68 } while (0)69 70TEST_F(LlvmLibcSincosTest, TrickyInputs) {71 constexpr double INPUTS[] = {72 0x1.8000000000009p-23, 0x1.8000000000024p-22,73 0x1.800000000009p-21, 0x1.20000000000f3p-20,74 0x1.800000000024p-20, 0x1.e0000000001c2p-20,75 0x1.940c877fb7dacp-7, -0x1.f42fb19b5b9b2p-6,76 -0x1.0285070f9f1bcp-5, 0x1.23f40dccdef72p+0,77 0x1.43cf16358c9d7p+0, 0x1.addf3b9722265p+0,78 0x1.ae78d360afa15p+0, 0x1.e31b55306f22cp+2,79 0x1.e639103a05997p+2, -0x1.f7898d5a756ddp+2,80 0x1.1685973506319p+3, 0x1.5f09cad750ab1p+3,81 -0x1.aaf85537ea4c7p+3, 0x1.4f2b874135d27p+4,82 0x1.13114266f9764p+4, 0x1.a211877de55dbp+4,83 -0x1.a5eece87e8606p+4, 0x1.a65d441ea6dcep+4,84 0x1.1ffb509f3db15p+5, 0x1.2345d1e090529p+5,85 0x1.c96e28eb679f8p+5, 0x1.be886d9c2324dp+6,86 -0x1.ab514bfc61c76p+7, -0x1.14823229799c2p+7,87 0x1.48ff1782ca91dp+8, 0x1.dcbfda0c7559ep+8,88 0x1.dcbfda0c7559ep+8, 0x1.2e566149bf5fdp+9,89 0x1.cb996c60f437ep+9, 0x1.ae945054939c2p+10,90 -0x1.119471e9216cdp+10, 0x1.ae945054939c2p+10,91 0x1.fffffffffdb6p+24, 0x1.fd4da4ef37075p+29,92 0x1.55202aefde314p+31, 0x1.b951f1572eba5p+31,93 0x1.7776c2343ba4ep+101, 0x1.85fc0f04c0128p+101,94 0x1.678309fa50d58p+110, 0x1.fffffffffef4ep+199,95 0x1.3eec5912ea7cdp+331, -0x1.3eec5912ea7cdp+331,96 -0x1.6deb37da81129p+205, 0x1.08087e9aad90bp+887,97 -0x1.08087e9aad90bp+887, -0x1.8bb5847d49973p+845,98 0x1.6ac5b262ca1ffp+849, 0x1.f08b14e1c4d0fp+890,99 0x1.2b5fe88a9d8d5p+903, 0x1.f6d7518808571p+1023,100 -0x1.a880417b7b119p+1023, 0x1.00a33764a0a83p-7,101 0x1.fe81868fc47fep+1, 0x1.0da8cc189b47dp-10,102 0x1.da1838053b866p+5,103 104 };105 constexpr int N = sizeof(INPUTS) / sizeof(INPUTS[0]);106 107 for (int i = 0; i < N; ++i) {108 ASSERT_SINCOS_MATCH_ALL_ROUNDING(INPUTS[i]);109 }110}111 112TEST_F(LlvmLibcSincosTest, InDoubleRange) {113 constexpr uint64_t COUNT = 123'41;114 uint64_t START = LIBC_NAMESPACE::fputil::FPBits<double>(0x1.0p-50).uintval();115 uint64_t STOP = LIBC_NAMESPACE::fputil::FPBits<double>(0x1.0p200).uintval();116 uint64_t STEP = (STOP - START) / COUNT;117 118 for (uint64_t i = 0, v = START; i <= COUNT; ++i, v += STEP) {119 double x = FPBits(v).get_val();120 if (FPBits(v).is_nan() || FPBits(v).is_inf())121 continue;122 123 ASSERT_SINCOS_MATCH_ALL_ROUNDING(x);124 }125}126