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//===-- Unittests for sincos ----------------------------------------------===// |
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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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#include "src/__support/FPUtil/FPBits.h" |
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#include "src/math/sincos.h" |
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#include "test/UnitTest/FPMatcher.h" |
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#include "test/UnitTest/Test.h" |
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#include "utils/MPFRWrapper/MPFRUtils.h" |
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using LlvmLibcSincosTest = LIBC_NAMESPACE::testing::FPTest<double>; |
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namespace mpfr = LIBC_NAMESPACE::testing::mpfr; |
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using LIBC_NAMESPACE::testing::tlog; |
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#define ASSERT_SINCOS_MATCH_ALL_ROUNDING(input) \ |
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do { \ |
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double sin_x, cos_x; \ |
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namespace mpfr = LIBC_NAMESPACE::testing::mpfr; \ |
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\ |
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mpfr::ForceRoundingMode __r1(mpfr::RoundingMode::Nearest); \ |
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if (__r1.success) { \ |
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LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, 0.5, \ |
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mpfr::RoundingMode::Nearest); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, 0.5, \ |
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mpfr::RoundingMode::Nearest); \ |
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} \ |
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\ |
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mpfr::ForceRoundingMode __r2(mpfr::RoundingMode::Upward); \ |
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if (__r2.success) { \ |
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LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, 0.5, \ |
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mpfr::RoundingMode::Upward); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, 0.5, \ |
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mpfr::RoundingMode::Upward); \ |
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} \ |
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\ |
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mpfr::ForceRoundingMode __r3(mpfr::RoundingMode::Downward); \ |
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if (__r3.success) { \ |
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LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, 0.5, \ |
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mpfr::RoundingMode::Downward); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, 0.5, \ |
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mpfr::RoundingMode::Downward); \ |
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} \ |
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\ |
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mpfr::ForceRoundingMode __r4(mpfr::RoundingMode::TowardZero); \ |
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if (__r4.success) { \ |
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LIBC_NAMESPACE::sincos(input, &sin_x, &cos_x); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Sin, input, sin_x, 0.5, \ |
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mpfr::RoundingMode::TowardZero); \ |
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ASSERT_MPFR_MATCH(mpfr::Operation::Cos, input, cos_x, 0.5, \ |
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mpfr::RoundingMode::TowardZero); \ |
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} \ |
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} while (0) |
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TEST_F(LlvmLibcSincosTest, TrickyInputs) { |
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constexpr double INPUTS[] = { |
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0x1.8000000000009p-23, 0x1.8000000000024p-22, |
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0x1.800000000009p-21, 0x1.20000000000f3p-20, |
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0x1.800000000024p-20, 0x1.e0000000001c2p-20, |
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0x1.940c877fb7dacp-7, -0x1.f42fb19b5b9b2p-6, |
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-0x1.0285070f9f1bcp-5, 0x1.23f40dccdef72p+0, |
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0x1.43cf16358c9d7p+0, 0x1.addf3b9722265p+0, |
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0x1.ae78d360afa15p+0, 0x1.e31b55306f22cp+2, |
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0x1.e639103a05997p+2, -0x1.f7898d5a756ddp+2, |
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0x1.1685973506319p+3, 0x1.5f09cad750ab1p+3, |
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-0x1.aaf85537ea4c7p+3, 0x1.4f2b874135d27p+4, |
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0x1.13114266f9764p+4, 0x1.a211877de55dbp+4, |
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-0x1.a5eece87e8606p+4, 0x1.a65d441ea6dcep+4, |
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0x1.1ffb509f3db15p+5, 0x1.2345d1e090529p+5, |
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0x1.c96e28eb679f8p+5, 0x1.be886d9c2324dp+6, |
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-0x1.ab514bfc61c76p+7, -0x1.14823229799c2p+7, |
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0x1.48ff1782ca91dp+8, 0x1.dcbfda0c7559ep+8, |
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0x1.dcbfda0c7559ep+8, 0x1.2e566149bf5fdp+9, |
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0x1.cb996c60f437ep+9, 0x1.ae945054939c2p+10, |
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-0x1.119471e9216cdp+10, 0x1.ae945054939c2p+10, |
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0x1.fffffffffdb6p+24, 0x1.fd4da4ef37075p+29, |
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0x1.55202aefde314p+31, 0x1.b951f1572eba5p+31, |
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0x1.7776c2343ba4ep+101, 0x1.85fc0f04c0128p+101, |
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0x1.678309fa50d58p+110, 0x1.fffffffffef4ep+199, |
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0x1.3eec5912ea7cdp+331, -0x1.3eec5912ea7cdp+331, |
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-0x1.6deb37da81129p+205, 0x1.08087e9aad90bp+887, |
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-0x1.08087e9aad90bp+887, -0x1.8bb5847d49973p+845, |
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0x1.6ac5b262ca1ffp+849, 0x1.f08b14e1c4d0fp+890, |
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0x1.2b5fe88a9d8d5p+903, 0x1.f6d7518808571p+1023, |
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-0x1.a880417b7b119p+1023, 0x1.00a33764a0a83p-7, |
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0x1.fe81868fc47fep+1, 0x1.0da8cc189b47dp-10, |
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0x1.da1838053b866p+5, |
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}; |
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constexpr int N = sizeof(INPUTS) / sizeof(INPUTS[0]); |
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for (int i = 0; i < N; ++i) { |
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ASSERT_SINCOS_MATCH_ALL_ROUNDING(INPUTS[i]); |
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} |
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} |
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TEST_F(LlvmLibcSincosTest, InDoubleRange) { |
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constexpr uint64_t COUNT = 123'451; |
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uint64_t START = LIBC_NAMESPACE::fputil::FPBits<double>(0x1.0p-50).uintval(); |
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uint64_t STOP = LIBC_NAMESPACE::fputil::FPBits<double>(0x1.0p200).uintval(); |
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uint64_t STEP = (STOP - START) / COUNT; |
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auto test = [&](mpfr::RoundingMode rounding_mode) { |
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for (uint64_t i = 0, v = START; i <= COUNT; ++i, v += STEP) { |
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double x = FPBits(v).get_val(); |
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if (isnan(x) || isinf(x)) |
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continue; |
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ASSERT_SINCOS_MATCH_ALL_ROUNDING(x); |
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} |
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}; |
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} |