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78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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* Copyright (c) 2023, Jelle Raaijmakers <[email protected]>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <AK/SIMD.h>
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#include <AK/SIMDFormat.h>
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#include <AK/SIMDMath.h>
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// See the comment in <AK/SIMDMath.h>
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#pragma GCC diagnostic ignored "-Wpsabi"
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TEST_CASE(expand_to)
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{
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auto v1 = AK::SIMD::expand_to<AK::SIMD::u8x2>(static_cast<u8>(1));
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static_assert(AK::SIMD::vector_length<decltype(v1)> == 2);
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EXPECT(v1[0] == 1 && v1[0] == v1[1]);
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auto v2 = AK::SIMD::expand_to<AK::SIMD::u8x32>(static_cast<u8>(2));
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static_assert(AK::SIMD::vector_length<decltype(v2)> == 32);
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EXPECT(v2[0] == 2);
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for (u8 i = 1; i < AK::SIMD::vector_length<decltype(v2)>; ++i)
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EXPECT(v2[i - 1] == v2[i]);
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auto v3 = AK::SIMD::expand_to<AK::SIMD::i32x8>(-1);
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static_assert(AK::SIMD::vector_length<decltype(v3)> == 8);
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EXPECT(v3[0] == -1);
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for (u8 i = 1; i < AK::SIMD::vector_length<decltype(v3)>; ++i)
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EXPECT(v3[i - 1] == v3[i]);
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}
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TEST_CASE(exp)
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{
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AK::SIMD::f32x4 v = { .2f, .4f, .6f, .8f };
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auto result = AK::SIMD::exp(v);
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EXPECT_APPROXIMATE(result[0], 1.22140276f);
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EXPECT_APPROXIMATE(result[1], 1.49182470f);
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EXPECT_APPROXIMATE(result[2], 1.82211880f);
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EXPECT_APPROXIMATE(result[3], 2.22554093f);
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}
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TEST_CASE(exp_approximate)
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{
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AK::SIMD::f32x4 v = { .2f, .4f, .6f, .8f };
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auto result = AK::SIMD::exp_approximate(v);
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constexpr float accuracy = .001f;
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EXPECT(fabsf(result[0] - 1.22140276f) <= accuracy);
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EXPECT(fabsf(result[1] - 1.49182470f) <= accuracy);
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EXPECT(fabsf(result[2] - 1.82211880f) <= accuracy);
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EXPECT(fabsf(result[3] - 2.22554093f) <= accuracy);
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}
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TEST_CASE(clamp)
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{
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AK::SIMD::f32x4 v1 = { .2f, .4f, .6f, .8f };
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v1 = AK::SIMD::clamp(v1, .4f, .6f);
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EXPECT(v1[0] == v1[1] && v1[1] == .4f);
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EXPECT(v1[2] == v1[3] && v1[3] == .6f);
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AK::SIMD::i32x4 v2 = { -10, 0, 0, 10 };
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v2 = AK::SIMD::clamp(v2, -5, 5);
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EXPECT(v2[0] == -5);
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EXPECT(v2[1] == 0);
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EXPECT(v2[2] == 0);
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EXPECT(v2[3] == 5);
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}
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TEST_CASE(format)
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{
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AK::SIMD::f32x4 v1 = { .2f, .4f, .6f, .8f };
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EXPECT(MUST(String::formatted("{}", v1)) == "{0.2, 0.4, 0.6, 0.8}"sv);
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}
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