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https://github.com/oliverbooth/X10D
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test: add tests for ReadOnlySpan.Pack (#73)
1 failing test: PackInt32Internal_Sse2_ShouldReturnCorrectInt32_GivenReadOnlySpan This will fail the dotnet workflow.
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@ -1,4 +1,9 @@
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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#if NET5_0_OR_GREATER
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using System.Runtime.Intrinsics.Arm;
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using System.Runtime.Intrinsics.X86;
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#endif
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using Moq.AutoMock;
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using X10D.Collections;
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using X10D.Core;
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@ -144,93 +149,253 @@ public class SpanTest
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}
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[TestMethod]
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public void Pack8Bit_Should_Pack_Correctly()
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public void PackByteInternal_Fallback_ShouldReturnCorrectByte_GivenReadOnlySpan_Using()
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{
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Span<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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Assert.AreEqual(0b00110011, span.PackByte());
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const byte expected = 0b00110011;
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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byte actual = span.PackByteInternal_Fallback();
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Assert.AreEqual(expected, actual);
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}
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#if NET5_0_OR_GREATER
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[TestMethod]
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public void PackByteInternal_Sse2_ShouldReturnCorrectByte_GivenReadOnlySpan_Using()
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{
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if (!Sse2.IsSupported)
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{
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return;
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}
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const byte expected = 0b00110011;
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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byte actual = span.PackByteInternal_Sse2();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void Pack8Bit_Should_Pack_Correctly_Randomize()
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public void PackByteInternal_AdvSimd_ShouldReturnCorrectByte_GivenReadOnlySpan_Using()
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{
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var value = new Random().NextByte();
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if (!AdvSimd.IsSupported)
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{
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return;
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}
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Span<bool> unpacks = stackalloc bool[8];
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const byte expected = 0b00110011;
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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value.Unpack(unpacks);
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byte actual = span.PackByteInternal_AdvSimd();
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Assert.AreEqual(value, unpacks.PackByte());
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Assert.AreEqual(expected, actual);
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}
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#endif
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[TestMethod]
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public void PackInt16_ShouldReturnSameAsPackByte_WhenSpanHasLength8()
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{
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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short expected = span.PackByte();
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short actual = span.PackInt16();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void Pack16Bit_Should_Pack_Correctly()
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public void PackInt16Internal_Fallback_ShouldReturnCorrectInt16_GivenReadOnlySpan()
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{
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const short expected = 0b00101101_11010100;
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ReadOnlySpan<bool> span = stackalloc bool[16]
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{
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false, false, true, false, true, false, true, true, true, false, true, true, false, true, false, false,
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};
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short actual = span.PackInt16Internal_Fallback();
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Assert.AreEqual(expected, actual);
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}
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#if NET5_0_OR_GREATER
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[TestMethod]
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public void PackInt16Internal_Sse2_ShouldReturnCorrectInt16_GivenReadOnlySpan_Using()
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{
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if (!Sse2.IsSupported)
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{
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return;
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}
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const short expected = 0b00101101_11010100;
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ReadOnlySpan<bool> span = stackalloc bool[16]
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{
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false, false, true, false, true, false, true, true, true, false, true, true, false, true, false, false,
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};
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short actual = span.PackInt16Internal_Sse2();
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Assert.AreEqual(expected, actual);
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}
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#endif
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[TestMethod]
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public void PackInt32Internal_Fallback_ShouldReturnCorrectInt32_GivenReadOnlySpan()
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{
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const int expected = 0b01010101_10101010_01010101_10101010;
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ReadOnlySpan<bool> span = stackalloc bool[32]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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int actual = span.PackInt32Internal_Fallback();
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Assert.AreEqual(expected, actual);
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}
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#if NET5_0_OR_GREATER
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[TestMethod]
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public void PackInt32Internal_Sse2_ShouldReturnCorrectInt32_GivenReadOnlySpan()
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{
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if (!Sse2.IsSupported)
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{
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return;
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}
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const int expected = 0b01010101_10101010_01010101_10101010;
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ReadOnlySpan<bool> span = stackalloc bool[32]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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int actual = span.PackInt32Internal_Sse2();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void PackInt32Internal_Avx2_ShouldReturnCorrectInt32_GivenReadOnlySpan()
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{
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if (!Avx2.IsSupported)
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{
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return;
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}
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const int expected = 0b01010101_10101010_01010101_10101010;
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ReadOnlySpan<bool> span = stackalloc bool[32]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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int actual = span.PackInt32Internal_Avx2();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void PackInt32Internal_AdvSimd_ShouldReturnCorrectInt32_GivenReadOnlySpan()
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{
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if (!AdvSimd.IsSupported)
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{
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return;
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}
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const int expected = 0b01010101_10101010_01010101_10101010;
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ReadOnlySpan<bool> span = stackalloc bool[32]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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int actual = span.PackInt32Internal_AdvSimd();
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Assert.AreEqual(expected, actual);
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}
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#endif
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[TestMethod]
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public void PackInt32_ShouldReturnSameAsPackByte_WhenSpanHasLength8()
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{
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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int expected = span.PackByte();
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int actual = span.PackInt32();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void PackInt32_ShouldReturnSameAsPackInt16_WhenSpanHasLength16()
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{
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ReadOnlySpan<bool> span = stackalloc bool[16]
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{
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false, false, true, false, true, false, true, true, true, false, true, true, false, true, false, false,
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};
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Assert.AreEqual(0b00101101_11010100, span.PackInt16());
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int expected = span.PackInt16();
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int actual = span.PackInt32();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void Pack16Bit_Should_Pack_Correctly_Randomize()
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public void PackInt64_ShouldReturnCorrectInt64_GivenReadOnlySpan()
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{
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var value = new Random().NextInt16();
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Span<bool> unpacks = stackalloc bool[16];
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value.Unpack(unpacks);
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Assert.AreEqual(value, unpacks.PackInt16());
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}
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[TestMethod]
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public void Pack32Bit_Should_Pack_Correctly()
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{
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ReadOnlySpan<bool> span = stackalloc bool[]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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Assert.AreEqual(0b01010101_10101010_01010101_10101010, span.PackInt32());
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}
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[TestMethod]
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public void Pack32Bit_Should_Pack_Correctly_Randomize()
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{
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var value = new Random().Next(int.MinValue, int.MaxValue);
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Span<bool> unpacks = stackalloc bool[32];
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value.Unpack(unpacks);
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Assert.AreEqual(value, unpacks.PackInt32());
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}
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[TestMethod]
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public void Pack64Bit_Should_Pack_Correctly()
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{
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ReadOnlySpan<bool> span = stackalloc bool[]
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const long expected = 0b01010101_11010110_01101001_11010110_00010010_10010111_00101100_10100101;
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ReadOnlySpan<bool> span = stackalloc bool[64]
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{
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true, false, true, false, false, true, false, true, false, false, true, true, false, true, false, false, true,
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true, true, false, true, false, false, true, false, true, false, false, true, false, false, false, false, true,
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true, false, true, false, true, true, true, false, false, true, false, true, true, false, false, true, true,
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false, true, false, true, true, true, false, true, false, true, false, true, false,
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};
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Assert.AreEqual(0b01010101_11010110_01101001_11010110_00010010_10010111_00101100_10100101, span.PackInt64());
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long actual = span.PackInt64();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void Pack64Bit_Should_Pack_Correctly_Randomize()
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public void PackInt64_ShouldReturnSameAsPackByte_WhenSpanHasLength8()
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{
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var rand = new Random();
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long value = ((long)rand.Next() << 32) | (long)rand.Next();
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ReadOnlySpan<bool> span = stackalloc bool[8] {true, true, false, false, true, true, false, false};
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Span<bool> unpacks = stackalloc bool[64];
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long expected = span.PackByte();
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long actual = span.PackInt64();
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value.Unpack(unpacks);
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Assert.AreEqual(expected, actual);
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}
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Assert.AreEqual(value, unpacks.PackInt64());
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[TestMethod]
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public void PackInt64_ShouldReturnSameAsPackInt16_WhenSpanHasLength16()
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{
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ReadOnlySpan<bool> span = stackalloc bool[16]
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{
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false, false, true, false, true, false, true, true, true, false, true, true, false, true, false, false,
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};
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long expected = span.PackInt16();
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long actual = span.PackInt64();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void PackInt64_ShouldReturnSameAsPackInt32_WhenSpanHasLength16()
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{
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ReadOnlySpan<bool> span = stackalloc bool[32]
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{
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false, true, false, true, false, true, false, true, true, false, true, false, true, false, true, false, false,
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true, false, true, false, true, false, true, true, false, true, false, true, false, true, false,
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};
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long expected = span.PackInt32();
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long actual = span.PackInt64();
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Assert.AreEqual(expected, actual);
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}
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private enum EnumByte : byte
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@ -23,12 +23,6 @@ public static class SpanExtensions
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#if NETCOREAPP3_0_OR_GREATER
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private const ulong IntegerPackingMagic = 0x0102040810204080;
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[ExcludeFromCodeCoverage]
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private static Vector64<ulong> IntegerPackingMagicV64
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{
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get => Vector64.Create(IntegerPackingMagic);
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}
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[ExcludeFromCodeCoverage]
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private static Vector128<ulong> IntegerPackingMagicV128
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{
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@ -53,6 +47,7 @@ public static class SpanExtensions
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/// <see langword="false" />.
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/// </returns>
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/// <exception cref="ArgumentException">The size of <typeparamref name="T" /> is unsupported.</exception>
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[Pure]
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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@ -75,10 +70,11 @@ public static class SpanExtensions
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/// <see langword="false" />.
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/// </returns>
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/// <exception cref="ArgumentException">The size of <typeparamref name="T" /> is unsupported.</exception>
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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[Pure]
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#if NETCOREAPP3_0_OR_GREATER
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#endif
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public static bool Contains<T>(this ReadOnlySpan<T> span, T value) where T : struct, Enum
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{
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@ -153,7 +149,11 @@ public static class SpanExtensions
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/// <returns>An 8-bit unsigned integer containing the packed booleans.</returns>
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/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 8 elements.</exception>
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[Pure]
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#if NETCOREAPP3_0_OR_GREATER
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#endif
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public static byte PackByte(this Span<bool> source)
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{
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return PackByte((ReadOnlySpan<bool>)source);
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@ -166,57 +166,42 @@ public static class SpanExtensions
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/// <returns>An 8-bit unsigned integer containing the packed booleans.</returns>
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/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 8 elements.</exception>
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[Pure]
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public static unsafe byte PackByte(this ReadOnlySpan<bool> source)
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{
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switch (source.Length)
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{
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case > 8: throw new ArgumentException("Source cannot contain more than 8 elements.", nameof(source));
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case 8:
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#if NETSTANDARD2_1
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// TODO: Think of a way to do fast boolean correctness without using SIMD API.
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goto default;
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#if NETCOREAPP3_0_OR_GREATER
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#else
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// TODO: Acceleration in Big Endian environment.
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if (!BitConverter.IsLittleEndian)
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{
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goto default;
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}
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fixed (bool* pSource = source)
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{
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// TODO: .NET 8.0 Wasm support.
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if (Sse2.IsSupported)
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{
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Vector128<byte> load = Sse2.LoadScalarVector128((ulong*)pSource).AsByte();
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return unchecked((byte)(IntegerPackingMagic * load.CorrectBoolean().AsUInt64().GetElement(0) >> 56));
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}
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// Probably should remove this piece of code because it is untested, but I see no reason why it should fail
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// unless vld1_u8 reverse positions of 8 bytes for some reason.
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if (AdvSimd.IsSupported)
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{
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// Hasn't been tested since March 6th 2023 (Reason: Unavailable hardware).
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Vector64<byte> load = AdvSimd.LoadVector64((byte*)pSource);
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return unchecked((byte)(IntegerPackingMagic * load.CorrectBoolean().AsUInt64().GetElement(0) >> 56));
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}
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goto default;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#endif
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default:
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byte result = 0;
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for (var index = 0; index < source.Length; index++)
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{
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result |= (byte)(source[index] ? 1 << index : 0);
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}
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return result;
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[ExcludeFromCodeCoverage]
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public static byte PackByte(this ReadOnlySpan<bool> source)
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{
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if (source.Length > 8)
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{
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throw new ArgumentException(ExceptionMessages.SourceSpanIsTooLarge, nameof(source));
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}
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if (source.Length < 8)
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{
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return PackByteInternal_Fallback(source);
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}
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#if NETCOREAPP3_0_OR_GREATER
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if (!BitConverter.IsLittleEndian)
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{
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return PackByteInternal_Fallback(source);
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}
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if (Sse2.IsSupported)
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{
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return PackByteInternal_Sse2(source);
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}
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if (AdvSimd.IsSupported)
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{
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return PackByteInternal_AdvSimd(source);
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}
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#endif
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return PackByteInternal_Fallback(source);
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}
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/// <summary>
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@ -239,52 +224,39 @@ public static class SpanExtensions
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/// <returns>A 16-bit signed integer containing the packed booleans.</returns>
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/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 16 elements.</exception>
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[Pure]
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public static unsafe short PackInt16(this ReadOnlySpan<bool> source)
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#if NETCOREAPP3_0_OR_GREATER
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#endif
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[ExcludeFromCodeCoverage]
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public static short PackInt16(this ReadOnlySpan<bool> source)
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{
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switch (source.Length)
|
||||
{
|
||||
case > 16: throw new ArgumentException("Source cannot contain more than than 16 elements.", nameof(source));
|
||||
case 8: return PackByte(source); // Potential optimization
|
||||
|
||||
case > 16:
|
||||
throw new ArgumentException(ExceptionMessages.SourceSpanIsTooLarge, nameof(source));
|
||||
case 8:
|
||||
return PackByte(source);
|
||||
case 16:
|
||||
#if NETSTANDARD2_1
|
||||
// TODO: Think of a way to do fast boolean correctness without using SIMD API.
|
||||
goto default;
|
||||
#else
|
||||
// TODO: Acceleration in Big Endian environment.
|
||||
if (!BitConverter.IsLittleEndian)
|
||||
{
|
||||
goto default;
|
||||
}
|
||||
|
||||
// TODO: AdvSimd implementation.
|
||||
// TODO: WasmSimd implementation.
|
||||
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
if (Sse2.IsSupported)
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
Vector128<byte> load = Sse2.LoadVector128((byte*)pSource);
|
||||
Vector128<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
Vector128<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift = Sse2.ShiftRightLogical(multiply, 56);
|
||||
|
||||
return (short)(shift.GetElement(0) | (shift.GetElement(1) << 8));
|
||||
}
|
||||
return PackInt16Internal_Sse2(source);
|
||||
}
|
||||
|
||||
goto default;
|
||||
#endif
|
||||
|
||||
goto default;
|
||||
case < 16:
|
||||
return PackInt16Internal_Fallback(source);
|
||||
|
||||
default:
|
||||
short result = 0;
|
||||
|
||||
for (var index = 0; index < source.Length; index++)
|
||||
{
|
||||
result |= (short)(source[index] ? 1 << index : 0);
|
||||
}
|
||||
|
||||
return result;
|
||||
return PackInt16Internal_Fallback(source);
|
||||
}
|
||||
}
|
||||
|
||||
@ -295,7 +267,11 @@ public static class SpanExtensions
|
||||
/// <returns>A 32-bit signed integer containing the packed booleans.</returns>
|
||||
/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 32 elements.</exception>
|
||||
[Pure]
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
public static int PackInt32(this Span<bool> source)
|
||||
{
|
||||
return PackInt32((ReadOnlySpan<bool>)source);
|
||||
@ -308,99 +284,51 @@ public static class SpanExtensions
|
||||
/// <returns>A 32-bit signed integer containing the packed booleans.</returns>
|
||||
/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 32 elements.</exception>
|
||||
[Pure]
|
||||
public static unsafe int PackInt32(this ReadOnlySpan<bool> source)
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
[ExcludeFromCodeCoverage]
|
||||
public static int PackInt32(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
switch (source.Length)
|
||||
{
|
||||
case > 32: throw new ArgumentException("Source cannot contain more than than 32 elements.", nameof(source));
|
||||
case 8: return PackByte(source);
|
||||
case 16: return PackInt16(source);
|
||||
case > 32:
|
||||
throw new ArgumentException(ExceptionMessages.SourceSpanIsTooLarge, nameof(source));
|
||||
|
||||
case 8:
|
||||
return PackByte(source);
|
||||
|
||||
case 16:
|
||||
return PackInt16(source);
|
||||
|
||||
case 32:
|
||||
#if NETSTANDARD2_1
|
||||
// TODO: Think of a way to do fast boolean correctness without using SIMD API.
|
||||
goto default;
|
||||
#else
|
||||
// TODO: Acceleration in Big Endian environment.
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
if (!BitConverter.IsLittleEndian)
|
||||
{
|
||||
goto default;
|
||||
}
|
||||
|
||||
fixed (bool* pSource = source)
|
||||
if (Avx2.IsSupported)
|
||||
{
|
||||
if (Avx2.IsSupported)
|
||||
{
|
||||
Vector256<byte> load = Avx.LoadVector256((byte*)pSource);
|
||||
Vector256<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
return PackInt32Internal_Avx2(source);
|
||||
}
|
||||
|
||||
Vector256<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV256, correct);
|
||||
Vector256<ulong> shift = Avx2.ShiftRightLogical(multiply, 56);
|
||||
shift = Avx2.ShiftLeftLogicalVariable(shift, Vector256.Create(0UL, 8, 16, 24));
|
||||
if (Sse2.IsSupported)
|
||||
{
|
||||
return PackInt32Internal_Sse2(source);
|
||||
}
|
||||
|
||||
Vector256<ulong> p1 = Avx2.Permute4x64(shift, 0b10_11_00_01);
|
||||
Vector256<ulong> or1 = Avx2.Or(shift, p1);
|
||||
Vector256<ulong> p2 = Avx2.Permute4x64(or1, 0b00_00_10_10);
|
||||
Vector256<ulong> or2 = Avx2.Or(or1, p2);
|
||||
|
||||
return (int)or2.GetElement(0);
|
||||
}
|
||||
|
||||
if (Sse2.IsSupported)
|
||||
{
|
||||
Vector128<byte> load = Sse2.LoadVector128((byte*)pSource);
|
||||
Vector128<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
|
||||
Vector128<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift1 = Sse2.ShiftRightLogical(multiply, 56);
|
||||
shift1 = Sse2.ShiftLeftLogical(shift1, Vector128.Create(0UL, 8UL));
|
||||
|
||||
load = Sse2.LoadVector128((byte*)(pSource + 16));
|
||||
correct = load.CorrectBoolean().AsUInt64();
|
||||
|
||||
multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift2 = Sse2.ShiftRightLogical(multiply, 56);
|
||||
shift2 = Sse2.ShiftLeftLogical(shift2, Vector128.Create(16UL, 24UL));
|
||||
|
||||
Vector128<ulong> or1 = Sse2.Or(shift1, shift2);
|
||||
Vector128<ulong> or2 = Sse2.Or(or1, or1.ReverseElements());
|
||||
|
||||
return (int)or2.GetElement(0);
|
||||
}
|
||||
|
||||
if (AdvSimd.IsSupported)
|
||||
{
|
||||
// Hasn't been tested since March 6th 2023 (Reason: Unavailable hardware).
|
||||
Vector128<ulong> vector1 = AdvSimd.LoadVector128((byte*)pSource).CorrectBoolean().AsUInt64();
|
||||
Vector128<ulong> vector2 = AdvSimd.LoadVector128((byte*)(pSource + 16)).CorrectBoolean().AsUInt64();
|
||||
|
||||
Vector128<ulong> calc1 = IntrinsicUtility.Multiply(IntegerPackingMagicV128, vector1);
|
||||
Vector128<ulong> calc2 = IntrinsicUtility.Multiply(IntegerPackingMagicV128, vector2);
|
||||
|
||||
calc1 = AdvSimd.ShiftRightLogical(calc1, 56);
|
||||
calc2 = AdvSimd.ShiftRightLogical(calc2, 56);
|
||||
|
||||
Vector128<ulong> shift1 = AdvSimd.ShiftLogical(calc1, Vector128.Create(0, 8));
|
||||
Vector128<ulong> shift2 = AdvSimd.ShiftLogical(calc2, Vector128.Create(16, 24));
|
||||
|
||||
return (int)(shift1.GetElement(0) | shift1.GetElement(1) | shift2.GetElement(0) | shift2.GetElement(1));
|
||||
}
|
||||
else
|
||||
{
|
||||
goto default;
|
||||
}
|
||||
if (AdvSimd.IsSupported)
|
||||
{
|
||||
return PackInt32Internal_AdvSimd(source);
|
||||
}
|
||||
#endif
|
||||
goto default;
|
||||
|
||||
default:
|
||||
int result = 0;
|
||||
|
||||
for (var i = 0; i < source.Length; i++)
|
||||
{
|
||||
result |= source[i] ? 1 << i : 0;
|
||||
}
|
||||
|
||||
return result;
|
||||
return PackInt32Internal_Fallback(source);
|
||||
}
|
||||
}
|
||||
|
||||
@ -411,7 +339,11 @@ public static class SpanExtensions
|
||||
/// <returns>A 64-bit signed integer containing the packed booleans.</returns>
|
||||
/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 64 elements.</exception>
|
||||
[Pure]
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
public static long PackInt64(this Span<bool> source)
|
||||
{
|
||||
return PackInt64((ReadOnlySpan<bool>)source);
|
||||
@ -424,17 +356,21 @@ public static class SpanExtensions
|
||||
/// <returns>A 64-bit signed integer containing the packed booleans.</returns>
|
||||
/// <exception cref="ArgumentException"><paramref name="source" /> contains more than 64 elements.</exception>
|
||||
[Pure]
|
||||
public static unsafe long PackInt64(this ReadOnlySpan<bool> source)
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
public static long PackInt64(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
switch (source.Length)
|
||||
{
|
||||
case > 64: throw new ArgumentException("Source cannot contain more than than 64 elements.", nameof(source));
|
||||
case > 64: throw new ArgumentException(ExceptionMessages.SourceSpanIsTooLarge, nameof(source));
|
||||
case 8: return PackByte(source);
|
||||
case 16: return PackInt16(source);
|
||||
case 32: return PackInt32(source);
|
||||
case 64:
|
||||
// TODO: Reimplement when Vector512 is in standard API.
|
||||
return (long)PackInt32(source[..32]) | ((long)PackInt32(source[32..]) << 32);
|
||||
// ReSharper disable once RedundantCast
|
||||
case 64: return (long)PackInt32(source[..32]) | ((long)PackInt32(source[32..]) << 32);
|
||||
|
||||
default:
|
||||
long result = 0;
|
||||
@ -447,4 +383,194 @@ public static class SpanExtensions
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
[Pure]
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
internal static byte PackByteInternal_Fallback(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
byte result = 0;
|
||||
|
||||
for (var index = 0; index < source.Length; index++)
|
||||
{
|
||||
result |= (byte)(source[index] ? 1 << index : 0);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
[Pure]
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
internal static short PackInt16Internal_Fallback(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
short result = 0;
|
||||
|
||||
for (var index = 0; index < source.Length; index++)
|
||||
{
|
||||
result |= (short)(source[index] ? 1 << index : 0);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
[Pure]
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
#else
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
#endif
|
||||
internal static int PackInt32Internal_Fallback(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
var result = 0;
|
||||
|
||||
for (var index = 0; index < source.Length; index++)
|
||||
{
|
||||
result |= source[index] ? 1 << index : 0;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
#if NETCOREAPP3_0_OR_GREATER
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static byte PackByteInternal_Sse2(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
Vector128<byte> load = Sse2.LoadScalarVector128((ulong*)pSource).AsByte();
|
||||
return unchecked((byte)(IntegerPackingMagic * load.CorrectBoolean().AsUInt64().GetElement(0) >> 56));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static short PackInt16Internal_Sse2(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
Vector128<byte> load = Sse2.LoadVector128((byte*)pSource);
|
||||
Vector128<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
Vector128<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift = Sse2.ShiftRightLogical(multiply, 56);
|
||||
|
||||
return (short)(shift.GetElement(0) | (shift.GetElement(1) << 8));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static int PackInt32Internal_AdvSimd(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
// TODO Hasn't been tested since March 6th 2023 (Reason: Unavailable hardware).
|
||||
Vector128<ulong> vector1 = AdvSimd.LoadVector128((byte*)pSource).CorrectBoolean().AsUInt64();
|
||||
Vector128<ulong> vector2 = AdvSimd.LoadVector128((byte*)(pSource + 16)).CorrectBoolean().AsUInt64();
|
||||
|
||||
Vector128<ulong> calc1 = IntrinsicUtility.Multiply(IntegerPackingMagicV128, vector1);
|
||||
Vector128<ulong> calc2 = IntrinsicUtility.Multiply(IntegerPackingMagicV128, vector2);
|
||||
|
||||
calc1 = AdvSimd.ShiftRightLogical(calc1, 56);
|
||||
calc2 = AdvSimd.ShiftRightLogical(calc2, 56);
|
||||
|
||||
Vector128<ulong> shift1 = AdvSimd.ShiftLogical(calc1, Vector128.Create(0, 8));
|
||||
Vector128<ulong> shift2 = AdvSimd.ShiftLogical(calc2, Vector128.Create(16, 24));
|
||||
|
||||
return (int)(shift1.GetElement(0) | shift1.GetElement(1) | shift2.GetElement(0) | shift2.GetElement(1));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static int PackInt32Internal_Avx2(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
Vector256<byte> load = Avx.LoadVector256((byte*)pSource);
|
||||
Vector256<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
|
||||
Vector256<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV256, correct);
|
||||
Vector256<ulong> shift = Avx2.ShiftRightLogical(multiply, 56);
|
||||
shift = Avx2.ShiftLeftLogicalVariable(shift, Vector256.Create(0UL, 8, 16, 24));
|
||||
|
||||
Vector256<ulong> p1 = Avx2.Permute4x64(shift, 0b10_11_00_01);
|
||||
Vector256<ulong> or1 = Avx2.Or(shift, p1);
|
||||
Vector256<ulong> p2 = Avx2.Permute4x64(or1, 0b00_00_10_10);
|
||||
Vector256<ulong> or2 = Avx2.Or(or1, p2);
|
||||
|
||||
return (int)or2.GetElement(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static int PackInt32Internal_Sse2(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
Vector128<byte> load = Sse2.LoadVector128((byte*)pSource);
|
||||
Vector128<ulong> correct = load.CorrectBoolean().AsUInt64();
|
||||
|
||||
Vector128<ulong> multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift1 = Sse2.ShiftRightLogical(multiply, 56);
|
||||
shift1 = Sse2.ShiftLeftLogical(shift1, Vector128.Create(0UL, 8UL));
|
||||
|
||||
load = Sse2.LoadVector128((byte*)(pSource + 16));
|
||||
correct = load.CorrectBoolean().AsUInt64();
|
||||
|
||||
multiply = IntrinsicUtility.Multiply(IntegerPackingMagicV128, correct);
|
||||
Vector128<ulong> shift2 = Sse2.ShiftRightLogical(multiply, 56);
|
||||
shift2 = Sse2.ShiftLeftLogical(shift2, Vector128.Create(16UL, 24UL));
|
||||
|
||||
Vector128<ulong> or1 = Sse2.Or(shift1, shift2);
|
||||
Vector128<ulong> or2 = Sse2.Or(or1, or1.ReverseElements());
|
||||
|
||||
return (int)or2.GetElement(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#if NET5_0_OR_GREATER
|
||||
// dotcover disable
|
||||
//NOSONAR
|
||||
[Pure]
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
|
||||
internal static byte PackByteInternal_AdvSimd(this ReadOnlySpan<bool> source)
|
||||
{
|
||||
unsafe
|
||||
{
|
||||
fixed (bool* pSource = source)
|
||||
{
|
||||
// TODO Hasn't been tested since March 6th 2023 (Reason: Unavailable hardware).
|
||||
Vector64<byte> load = AdvSimd.LoadVector64((byte*)pSource);
|
||||
return unchecked((byte)(IntegerPackingMagic * load.CorrectBoolean().AsUInt64().GetElement(0) >> 56));
|
||||
}
|
||||
}
|
||||
}
|
||||
//NOSONAR
|
||||
// dotcover enable
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
9
X10D/src/ExceptionMessages.Designer.cs
generated
9
X10D/src/ExceptionMessages.Designer.cs
generated
@ -176,6 +176,15 @@ namespace X10D {
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Looks up a localized string similar to The source contains too many elements..
|
||||
/// </summary>
|
||||
internal static string SourceSpanIsTooLarge {
|
||||
get {
|
||||
return ResourceManager.GetString("SourceSpanIsTooLarge", resourceCulture);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Looks up a localized string similar to The stream does not support reading..
|
||||
/// </summary>
|
||||
|
||||
@ -153,6 +153,9 @@
|
||||
<data name="LengthGreaterThanOrEqualTo0" xml:space="preserve">
|
||||
<value>Length must be greater than or equal to 0.</value>
|
||||
</data>
|
||||
<data name="SourceSpanIsTooLarge" xml:space="preserve">
|
||||
<value>The source contains too many elements.</value>
|
||||
</data>
|
||||
<data name="StreamDoesNotSupportReading" xml:space="preserve">
|
||||
<value>The stream does not support reading.</value>
|
||||
</data>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user