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https://gitlab.com/libeigen/eigen.git
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Clang-format tests, examples, libraries, benchmarks, etc.
This commit is contained in:
Antonio Sánchez
committed by
Rasmus Munk Larsen
Rasmus Munk Larsen
parent
3252ecc7a4
commit
46e9cdb7fe
@@ -21,45 +21,37 @@ struct bfloat16;
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using Eigen::bfloat16;
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float BinaryToFloat(uint32_t sign, uint32_t exponent, uint32_t high_mantissa,
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uint32_t low_mantissa) {
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float BinaryToFloat(uint32_t sign, uint32_t exponent, uint32_t high_mantissa, uint32_t low_mantissa) {
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float dest;
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uint32_t src = (sign << 31) + (exponent << 23) + (high_mantissa << 16) + low_mantissa;
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memcpy(static_cast<void*>(&dest),
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static_cast<const void*>(&src), sizeof(dest));
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memcpy(static_cast<void*>(&dest), static_cast<const void*>(&src), sizeof(dest));
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return dest;
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}
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template<typename T>
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void test_roundtrip() {
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template <typename T>
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void test_roundtrip() {
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// Representable T round trip via bfloat16
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(-std::numeric_limits<T>::infinity()))), -std::numeric_limits<T>::infinity());
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(std::numeric_limits<T>::infinity()))), std::numeric_limits<T>::infinity());
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(-1.0)))), T(-1.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(-0.5)))), T(-0.5));
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(-0.0)))), T(-0.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(1.0)))), T(1.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(0.5)))), T(0.5));
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VERIFY_IS_EQUAL((internal::cast<bfloat16,T>(internal::cast<T,bfloat16>(T(0.0)))), T(0.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(-std::numeric_limits<T>::infinity()))),
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-std::numeric_limits<T>::infinity());
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(std::numeric_limits<T>::infinity()))),
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std::numeric_limits<T>::infinity());
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(-1.0)))), T(-1.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(-0.5)))), T(-0.5));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(-0.0)))), T(-0.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(1.0)))), T(1.0));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(0.5)))), T(0.5));
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VERIFY_IS_EQUAL((internal::cast<bfloat16, T>(internal::cast<T, bfloat16>(T(0.0)))), T(0.0));
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}
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void test_conversion()
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{
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void test_conversion() {
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using Eigen::bfloat16_impl::__bfloat16_raw;
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// Round-trip casts
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VERIFY_IS_EQUAL(
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numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(1.0f))),
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bfloat16(1.0f));
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VERIFY_IS_EQUAL(
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numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(0.5f))),
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bfloat16(0.5f));
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VERIFY_IS_EQUAL(
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numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(-0.33333f))),
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bfloat16(-0.33333f));
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VERIFY_IS_EQUAL(
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numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(0.0f))),
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bfloat16(0.0f));
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VERIFY_IS_EQUAL(numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(1.0f))), bfloat16(1.0f));
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VERIFY_IS_EQUAL(numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(0.5f))), bfloat16(0.5f));
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VERIFY_IS_EQUAL(numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(-0.33333f))),
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bfloat16(-0.33333f));
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VERIFY_IS_EQUAL(numext::bit_cast<bfloat16>(numext::bit_cast<numext::uint16_t>(bfloat16(0.0f))), bfloat16(0.0f));
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// Conversion from float.
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VERIFY_BFLOAT16_BITS_EQUAL(bfloat16(1.0f), 0x3f80);
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@@ -118,23 +110,23 @@ void test_conversion()
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test_roundtrip<std::complex<double> >();
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// Conversion
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Array<float,1,100> a;
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Array<float, 1, 100> a;
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for (int i = 0; i < 100; i++) a(i) = i + 1.25;
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Array<bfloat16,1,100> b = a.cast<bfloat16>();
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Array<float,1,100> c = b.cast<float>();
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Array<bfloat16, 1, 100> b = a.cast<bfloat16>();
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Array<float, 1, 100> c = b.cast<float>();
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for (int i = 0; i < 100; ++i) {
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VERIFY_LE(numext::abs(c(i) - a(i)), a(i) / 128);
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}
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// Epsilon
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VERIFY_LE(1.0f, static_cast<float>((std::numeric_limits<bfloat16>::epsilon)() + bfloat16(1.0f)));
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VERIFY_IS_EQUAL(1.0f, static_cast<float>((std::numeric_limits<bfloat16>::epsilon)() / bfloat16(2.0f) + bfloat16(1.0f)));
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VERIFY_IS_EQUAL(1.0f,
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static_cast<float>((std::numeric_limits<bfloat16>::epsilon)() / bfloat16(2.0f) + bfloat16(1.0f)));
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// Negate
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VERIFY_IS_EQUAL(static_cast<float>(-bfloat16(3.0f)), -3.0f);
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VERIFY_IS_EQUAL(static_cast<float>(-bfloat16(-4.5f)), 4.5f);
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#if !EIGEN_COMP_MSVC
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// Visual Studio errors out on divisions by 0
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VERIFY((numext::isnan)(static_cast<float>(bfloat16(0.0 / 0.0))));
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@@ -167,46 +159,51 @@ void test_conversion()
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VERIFY_BFLOAT16_BITS_EQUAL(bfloat16(BinaryToFloat(0x1, 0xff, 0x40, 0x0)), 0xffc0);
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}
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void test_numtraits()
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{
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std::cout << "epsilon = " << NumTraits<bfloat16>::epsilon() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::epsilon()) << ")" << std::endl;
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std::cout << "highest = " << NumTraits<bfloat16>::highest() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::highest()) << ")" << std::endl;
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std::cout << "lowest = " << NumTraits<bfloat16>::lowest() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::lowest()) << ")" << std::endl;
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std::cout << "min = " << (std::numeric_limits<bfloat16>::min)() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>((std::numeric_limits<bfloat16>::min)()) << ")" << std::endl;
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std::cout << "denorm min = " << (std::numeric_limits<bfloat16>::denorm_min)() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>((std::numeric_limits<bfloat16>::denorm_min)()) << ")" << std::endl;
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std::cout << "infinity = " << NumTraits<bfloat16>::infinity() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::infinity()) << ")" << std::endl;
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std::cout << "quiet nan = " << NumTraits<bfloat16>::quiet_NaN() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::quiet_NaN()) << ")" << std::endl;
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std::cout << "signaling nan = " << std::numeric_limits<bfloat16>::signaling_NaN() << " (0x" << std::hex << numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::signaling_NaN()) << ")" << std::endl;
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void test_numtraits() {
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std::cout << "epsilon = " << NumTraits<bfloat16>::epsilon() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::epsilon()) << ")" << std::endl;
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std::cout << "highest = " << NumTraits<bfloat16>::highest() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::highest()) << ")" << std::endl;
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std::cout << "lowest = " << NumTraits<bfloat16>::lowest() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::lowest()) << ")" << std::endl;
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std::cout << "min = " << (std::numeric_limits<bfloat16>::min)() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>((std::numeric_limits<bfloat16>::min)()) << ")" << std::endl;
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std::cout << "denorm min = " << (std::numeric_limits<bfloat16>::denorm_min)() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>((std::numeric_limits<bfloat16>::denorm_min)()) << ")" << std::endl;
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std::cout << "infinity = " << NumTraits<bfloat16>::infinity() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::infinity()) << ")" << std::endl;
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std::cout << "quiet nan = " << NumTraits<bfloat16>::quiet_NaN() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(NumTraits<bfloat16>::quiet_NaN()) << ")" << std::endl;
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std::cout << "signaling nan = " << std::numeric_limits<bfloat16>::signaling_NaN() << " (0x" << std::hex
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<< numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::signaling_NaN()) << ")" << std::endl;
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VERIFY(NumTraits<bfloat16>::IsSigned);
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VERIFY_IS_EQUAL(
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numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::infinity()),
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numext::bit_cast<numext::uint16_t>(bfloat16(std::numeric_limits<float>::infinity())) );
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VERIFY_IS_EQUAL(numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::infinity()),
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numext::bit_cast<numext::uint16_t>(bfloat16(std::numeric_limits<float>::infinity())));
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// There is no guarantee that casting a 32-bit NaN to bfloat16 has a precise
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// bit pattern. We test that it is in fact a NaN, then test the signaling
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// bit (msb of significand is 1 for quiet, 0 for signaling).
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const numext::uint16_t BFLOAT16_QUIET_BIT = 0x0040;
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VERIFY(
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(numext::isnan)(std::numeric_limits<bfloat16>::quiet_NaN())
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&& (numext::isnan)(bfloat16(std::numeric_limits<float>::quiet_NaN()))
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&& ((numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::quiet_NaN()) & BFLOAT16_QUIET_BIT) > 0)
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&& ((numext::bit_cast<numext::uint16_t>(bfloat16(std::numeric_limits<float>::quiet_NaN())) & BFLOAT16_QUIET_BIT) > 0) );
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VERIFY((numext::isnan)(std::numeric_limits<bfloat16>::quiet_NaN()) &&
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(numext::isnan)(bfloat16(std::numeric_limits<float>::quiet_NaN())) &&
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((numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::quiet_NaN()) & BFLOAT16_QUIET_BIT) > 0) &&
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((numext::bit_cast<numext::uint16_t>(bfloat16(std::numeric_limits<float>::quiet_NaN())) & BFLOAT16_QUIET_BIT) >
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0));
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// After a cast to bfloat16, a signaling NaN may become non-signaling. Thus,
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// we check that both are NaN, and that only the `numeric_limits` version is
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// signaling.
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VERIFY(
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(numext::isnan)(std::numeric_limits<bfloat16>::signaling_NaN())
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&& (numext::isnan)(bfloat16(std::numeric_limits<float>::signaling_NaN()))
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&& ((numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::signaling_NaN()) & BFLOAT16_QUIET_BIT) == 0) );
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(numext::isnan)(std::numeric_limits<bfloat16>::signaling_NaN()) &&
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(numext::isnan)(bfloat16(std::numeric_limits<float>::signaling_NaN())) &&
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((numext::bit_cast<numext::uint16_t>(std::numeric_limits<bfloat16>::signaling_NaN()) & BFLOAT16_QUIET_BIT) == 0));
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VERIFY( (std::numeric_limits<bfloat16>::min)() > bfloat16(0.f) );
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VERIFY( (std::numeric_limits<bfloat16>::denorm_min)() > bfloat16(0.f) );
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VERIFY_IS_EQUAL( (std::numeric_limits<bfloat16>::denorm_min)()/bfloat16(2), bfloat16(0.f) );
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VERIFY((std::numeric_limits<bfloat16>::min)() > bfloat16(0.f));
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VERIFY((std::numeric_limits<bfloat16>::denorm_min)() > bfloat16(0.f));
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VERIFY_IS_EQUAL((std::numeric_limits<bfloat16>::denorm_min)() / bfloat16(2), bfloat16(0.f));
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}
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void test_arithmetic()
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{
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void test_arithmetic() {
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VERIFY_IS_EQUAL(static_cast<float>(bfloat16(2) + bfloat16(2)), 4.f);
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VERIFY_IS_EQUAL(static_cast<float>(bfloat16(2) + bfloat16(-2)), 0.f);
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VERIFY_IS_APPROX(static_cast<float>(bfloat16(0.33333f) + bfloat16(0.66667f)), 1.0f);
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@@ -216,8 +213,7 @@ void test_arithmetic()
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VERIFY_IS_EQUAL(static_cast<float>(-bfloat16(-4096.0f)), 4096.0f);
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}
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void test_comparison()
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{
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void test_comparison() {
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VERIFY(bfloat16(1.0f) > bfloat16(0.5f));
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VERIFY(bfloat16(0.5f) < bfloat16(1.0f));
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VERIFY(!(bfloat16(1.0f) < bfloat16(0.5f)));
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@@ -254,8 +250,7 @@ void test_comparison()
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#endif
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}
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void test_basic_functions()
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{
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void test_basic_functions() {
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VERIFY_IS_EQUAL(static_cast<float>(numext::abs(bfloat16(3.5f))), 3.5f);
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VERIFY_IS_EQUAL(static_cast<float>(abs(bfloat16(3.5f))), 3.5f);
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VERIFY_IS_EQUAL(static_cast<float>(numext::abs(bfloat16(-3.5f))), 3.5f);
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@@ -302,8 +297,7 @@ void test_basic_functions()
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VERIFY_IS_APPROX(static_cast<float>(log1p(bfloat16(10.0f))), 2.390625f);
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}
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void test_trigonometric_functions()
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{
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void test_trigonometric_functions() {
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VERIFY_IS_APPROX(numext::cos(bfloat16(0.0f)), bfloat16(cosf(0.0f)));
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VERIFY_IS_APPROX(cos(bfloat16(0.0f)), bfloat16(cosf(0.0f)));
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VERIFY_IS_APPROX(numext::cos(bfloat16(EIGEN_PI)), bfloat16(cosf(EIGEN_PI)));
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@@ -314,8 +308,8 @@ void test_trigonometric_functions()
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VERIFY_IS_APPROX(numext::sin(bfloat16(0.0f)), bfloat16(sinf(0.0f)));
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VERIFY_IS_APPROX(sin(bfloat16(0.0f)), bfloat16(sinf(0.0f)));
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// VERIFY_IS_APPROX(numext::sin(bfloat16(EIGEN_PI)), bfloat16(sinf(EIGEN_PI)));
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VERIFY_IS_APPROX(numext::sin(bfloat16(EIGEN_PI/2)), bfloat16(sinf(EIGEN_PI/2)));
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VERIFY_IS_APPROX(numext::sin(bfloat16(3*EIGEN_PI/2)), bfloat16(sinf(3*EIGEN_PI/2)));
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VERIFY_IS_APPROX(numext::sin(bfloat16(EIGEN_PI / 2)), bfloat16(sinf(EIGEN_PI / 2)));
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VERIFY_IS_APPROX(numext::sin(bfloat16(3 * EIGEN_PI / 2)), bfloat16(sinf(3 * EIGEN_PI / 2)));
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VERIFY_IS_APPROX(numext::sin(bfloat16(3.5f)), bfloat16(sinf(3.5f)));
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VERIFY_IS_APPROX(numext::tan(bfloat16(0.0f)), bfloat16(tanf(0.0f)));
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@@ -326,45 +320,42 @@ void test_trigonometric_functions()
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VERIFY_IS_APPROX(numext::tan(bfloat16(3.5f)), bfloat16(tanf(3.5f)));
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}
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void test_array()
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{
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typedef Array<bfloat16,1,Dynamic> ArrayXh;
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Index size = internal::random<Index>(1,10);
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Index i = internal::random<Index>(0,size-1);
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void test_array() {
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typedef Array<bfloat16, 1, Dynamic> ArrayXh;
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Index size = internal::random<Index>(1, 10);
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Index i = internal::random<Index>(0, size - 1);
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ArrayXh a1 = ArrayXh::Random(size), a2 = ArrayXh::Random(size);
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VERIFY_IS_APPROX( a1+a1, bfloat16(2)*a1 );
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VERIFY( (a1.abs() >= bfloat16(0)).all() );
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VERIFY_IS_APPROX( (a1*a1).sqrt(), a1.abs() );
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VERIFY_IS_APPROX(a1 + a1, bfloat16(2) * a1);
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VERIFY((a1.abs() >= bfloat16(0)).all());
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VERIFY_IS_APPROX((a1 * a1).sqrt(), a1.abs());
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VERIFY( ((a1.min)(a2) <= (a1.max)(a2)).all() );
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VERIFY(((a1.min)(a2) <= (a1.max)(a2)).all());
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a1(i) = bfloat16(-10.);
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VERIFY_IS_EQUAL( a1.minCoeff(), bfloat16(-10.) );
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VERIFY_IS_EQUAL(a1.minCoeff(), bfloat16(-10.));
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a1(i) = bfloat16(10.);
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VERIFY_IS_EQUAL( a1.maxCoeff(), bfloat16(10.) );
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VERIFY_IS_EQUAL(a1.maxCoeff(), bfloat16(10.));
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std::stringstream ss;
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ss << a1;
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}
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void test_product()
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{
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typedef Matrix<bfloat16,Dynamic,Dynamic> MatrixXh;
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Index rows = internal::random<Index>(1,EIGEN_TEST_MAX_SIZE);
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Index cols = internal::random<Index>(1,EIGEN_TEST_MAX_SIZE);
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Index depth = internal::random<Index>(1,EIGEN_TEST_MAX_SIZE);
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MatrixXh Ah = MatrixXh::Random(rows,depth);
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MatrixXh Bh = MatrixXh::Random(depth,cols);
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MatrixXh Ch = MatrixXh::Random(rows,cols);
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void test_product() {
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typedef Matrix<bfloat16, Dynamic, Dynamic> MatrixXh;
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Index rows = internal::random<Index>(1, EIGEN_TEST_MAX_SIZE);
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Index cols = internal::random<Index>(1, EIGEN_TEST_MAX_SIZE);
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Index depth = internal::random<Index>(1, EIGEN_TEST_MAX_SIZE);
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MatrixXh Ah = MatrixXh::Random(rows, depth);
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MatrixXh Bh = MatrixXh::Random(depth, cols);
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MatrixXh Ch = MatrixXh::Random(rows, cols);
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MatrixXf Af = Ah.cast<float>();
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MatrixXf Bf = Bh.cast<float>();
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MatrixXf Cf = Ch.cast<float>();
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VERIFY_IS_APPROX(Ch.noalias()+=Ah*Bh, (Cf.noalias()+=Af*Bf).cast<bfloat16>());
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VERIFY_IS_APPROX(Ch.noalias() += Ah * Bh, (Cf.noalias() += Af * Bf).cast<bfloat16>());
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}
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EIGEN_DECLARE_TEST(bfloat16_float)
|
||||
{
|
||||
EIGEN_DECLARE_TEST(bfloat16_float) {
|
||||
CALL_SUBTEST(test_numtraits());
|
||||
for(int i = 0; i < g_repeat; i++) {
|
||||
for (int i = 0; i < g_repeat; i++) {
|
||||
CALL_SUBTEST(test_conversion());
|
||||
CALL_SUBTEST(test_arithmetic());
|
||||
CALL_SUBTEST(test_comparison());
|
||||
|
||||
Reference in New Issue
Block a user