diff --git a/X10D/src/Collections/ByteExtensions.cs b/X10D/src/Collections/ByteExtensions.cs
index 1fa4ca9..5207b26 100644
--- a/X10D/src/Collections/ByteExtensions.cs
+++ b/X10D/src/Collections/ByteExtensions.cs
@@ -20,7 +20,7 @@ public static class ByteExtensions
     /// <param name="value">The value to unpack.</param>
     /// <returns>An array of <see cref="bool" /> with length 8.</returns>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static bool[] Unpack(this byte value)
     {
         var buffer = new bool[Size];
@@ -35,7 +35,7 @@ public static class ByteExtensions
     /// <param name="destination">When this method returns, contains the unpacked booleans from <paramref name="value" />.</param>
     /// <exception cref="ArgumentException"><paramref name="destination" /> is not large enough to contain the result.</exception>
     [ExcludeFromCodeCoverage]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Unpack(this byte value, Span<bool> destination)
     {
         if (destination.Length < Size)
@@ -52,7 +52,7 @@ public static class ByteExtensions
         UnpackInternal_Fallback(value, destination);
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static void UnpackInternal_Fallback(this byte value, Span<bool> destination)
     {
         for (var index = 0; index < Size; index++)
@@ -61,7 +61,7 @@ public static class ByteExtensions
         }
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal unsafe static void UnpackInternal_Ssse3(this byte value, Span<bool> destination)
     {
         fixed (bool* pDestination = destination)
diff --git a/X10D/src/Collections/Int16Extensions.cs b/X10D/src/Collections/Int16Extensions.cs
index 63948ab..fb722b9 100644
--- a/X10D/src/Collections/Int16Extensions.cs
+++ b/X10D/src/Collections/Int16Extensions.cs
@@ -20,7 +20,7 @@ public static class Int16Extensions
     /// <param name="value">The value to unpack.</param>
     /// <returns>An array of <see cref="bool" /> with length 16.</returns>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static bool[] Unpack(this short value)
     {
         var ret = new bool[Size];
@@ -35,7 +35,7 @@ public static class Int16Extensions
     /// <param name="destination">When this method returns, contains the unpacked booleans from <paramref name="value" />.</param>
     /// <exception cref="ArgumentException"><paramref name="destination" /> is not large enough to contain the result.</exception>
     [ExcludeFromCodeCoverage]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Unpack(this short value, Span<bool> destination)
     {
         if (destination.Length < Size)
@@ -52,7 +52,7 @@ public static class Int16Extensions
         UnpackInternal_Fallback(value, destination);
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static void UnpackInternal_Fallback(this short value, Span<bool> destination)
     {
         for (var index = 0; index < Size; index++)
@@ -61,7 +61,7 @@ public static class Int16Extensions
         }
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal unsafe static void UnpackInternal_Ssse3(this short value, Span<bool> destination)
     {
         fixed (bool* pDestination = destination)
diff --git a/X10D/src/Collections/Int32Extensions.cs b/X10D/src/Collections/Int32Extensions.cs
index c8ab5a0..19dbe7e 100644
--- a/X10D/src/Collections/Int32Extensions.cs
+++ b/X10D/src/Collections/Int32Extensions.cs
@@ -20,7 +20,7 @@ public static class Int32Extensions
     /// <param name="value">The value to unpack.</param>
     /// <returns>An array of <see cref="bool" /> with length 32.</returns>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static bool[] Unpack(this int value)
     {
         var ret = new bool[Size];
@@ -35,7 +35,7 @@ public static class Int32Extensions
     /// <param name="destination">When this method returns, contains the unpacked booleans from <paramref name="value" />.</param>
     /// <exception cref="ArgumentException"><paramref name="destination" /> is not large enough to contain the result.</exception>
     [ExcludeFromCodeCoverage]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Unpack(this int value, Span<bool> destination)
     {
         if (destination.Length < Size)
@@ -58,7 +58,7 @@ public static class Int32Extensions
         UnpackInternal_Fallback(value, destination);
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static void UnpackInternal_Fallback(this int value, Span<bool> destination)
     {
         for (var index = 0; index < Size; index++)
@@ -67,7 +67,7 @@ public static class Int32Extensions
         }
     }
 
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static unsafe void UnpackInternal_Ssse3(this int value, Span<bool> destination)
     {
         fixed (bool* pDestination = destination)
diff --git a/X10D/src/CompilerServices/CompilerResources.cs b/X10D/src/CompilerServices/CompilerResources.cs
index 3c68446..373a366 100644
--- a/X10D/src/CompilerServices/CompilerResources.cs
+++ b/X10D/src/CompilerServices/CompilerResources.cs
@@ -4,6 +4,6 @@ namespace X10D.CompilerServices;
 
 internal static class CompilerResources
 {
-    public const MethodImplOptions MethodImplOptions = System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining |
-                                                       System.Runtime.CompilerServices.MethodImplOptions.AggressiveOptimization;
+    public const MethodImplOptions MaxOptimization = MethodImplOptions.AggressiveInlining |
+                                                     MethodImplOptions.AggressiveOptimization;
 }
diff --git a/X10D/src/Core/SpanExtensions.cs b/X10D/src/Core/SpanExtensions.cs
index 239c7a5..c1f2a1e 100644
--- a/X10D/src/Core/SpanExtensions.cs
+++ b/X10D/src/Core/SpanExtensions.cs
@@ -43,7 +43,7 @@ public static class SpanExtensions
     /// </returns>
     /// <exception cref="ArgumentException">The size of <typeparamref name="T" /> is unsupported.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static bool Contains<T>(this Span<T> span, T value) where T : struct, Enum
     {
         return Contains((ReadOnlySpan<T>)span, value);
@@ -62,7 +62,7 @@ public static class SpanExtensions
     /// </returns>
     /// <exception cref="ArgumentException">The size of <typeparamref name="T" /> is unsupported.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static bool Contains<T>(this ReadOnlySpan<T> span, T value) where T : struct, Enum
     {
         switch (Unsafe.SizeOf<T>())
@@ -111,7 +111,7 @@ public static class SpanExtensions
     /// <returns>An 8-bit unsigned integer containing the packed booleans.</returns>
     /// <exception cref="ArgumentException"><paramref name="source" /> contains more than 8 elements.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static byte PackByte(this Span<bool> source)
     {
         return PackByte((ReadOnlySpan<bool>)source);
@@ -124,7 +124,7 @@ public static class SpanExtensions
     /// <returns>An 8-bit unsigned integer containing the packed booleans.</returns>
     /// <exception cref="ArgumentException"><paramref name="source" /> contains more than 8 elements.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     [ExcludeFromCodeCoverage]
     public static byte PackByte(this ReadOnlySpan<bool> source)
     {
@@ -171,7 +171,7 @@ public static class SpanExtensions
     /// <returns>A 16-bit signed integer containing the packed booleans.</returns>
     /// <exception cref="ArgumentException"><paramref name="source" /> contains more than 16 elements.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     [ExcludeFromCodeCoverage]
     public static short PackInt16(this ReadOnlySpan<bool> source)
     {
@@ -208,7 +208,7 @@ 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]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static int PackInt32(this Span<bool> source)
     {
         return PackInt32((ReadOnlySpan<bool>)source);
@@ -221,7 +221,7 @@ 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]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     [ExcludeFromCodeCoverage]
     public static int PackInt32(this ReadOnlySpan<bool> source)
     {
@@ -266,7 +266,7 @@ 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]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static long PackInt64(this Span<bool> source)
     {
         return PackInt64((ReadOnlySpan<bool>)source);
@@ -279,7 +279,7 @@ 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]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static long PackInt64(this ReadOnlySpan<bool> source)
     {
         switch (source.Length)
@@ -304,7 +304,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static byte PackByteInternal_Fallback(this ReadOnlySpan<bool> source)
     {
         byte result = 0;
@@ -318,7 +318,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static short PackInt16Internal_Fallback(this ReadOnlySpan<bool> source)
     {
         short result = 0;
@@ -332,7 +332,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static int PackInt32Internal_Fallback(this ReadOnlySpan<bool> source)
     {
         var result = 0;
@@ -346,7 +346,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static byte PackByteInternal_Sse2(this ReadOnlySpan<bool> source)
     {
         unsafe
@@ -360,7 +360,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static short PackInt16Internal_Sse2(this ReadOnlySpan<bool> source)
     {
         unsafe
@@ -378,7 +378,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static int PackInt32Internal_Avx2(this ReadOnlySpan<bool> source)
     {
         unsafe
@@ -403,7 +403,7 @@ public static class SpanExtensions
     }
 
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     internal static int PackInt32Internal_Sse2(this ReadOnlySpan<bool> source)
     {
         unsafe
diff --git a/X10D/src/Text/CharExtensions.cs b/X10D/src/Text/CharExtensions.cs
index 44efb04..8b015de 100644
--- a/X10D/src/Text/CharExtensions.cs
+++ b/X10D/src/Text/CharExtensions.cs
@@ -54,7 +54,7 @@ public static class CharExtensions
     /// <param name="value">The character to repeat.</param>
     /// <param name="count">The number of times to repeat.</param>
     /// <param name="destination">The span of characters into which the repeated characters will be written.</param>
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Repeat(this char value, int count, Span<char> destination)
     {
         if (count < 0)
diff --git a/X10D/src/Text/CharSpanExtensions.cs b/X10D/src/Text/CharSpanExtensions.cs
index f9ba1d7..17bfb71 100644
--- a/X10D/src/Text/CharSpanExtensions.cs
+++ b/X10D/src/Text/CharSpanExtensions.cs
@@ -82,7 +82,7 @@ public static class CharSpanExtensions
     /// <exception cref="ArgumentNullException"><paramref name="value" /> is <see langword="null" />.</exception>
     /// <exception cref="ArgumentOutOfRangeException"><paramref name="count" /> is less than 0.</exception>
     [Pure]
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static string Repeat(this ReadOnlySpan<char> value, int count)
     {
         switch (count)
@@ -117,7 +117,7 @@ public static class CharSpanExtensions
     /// <exception cref="ArgumentException">
     ///     <paramref name="destination" /> is too short to contain the repeated string.
     /// </exception>
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Repeat(this ReadOnlySpan<char> value, int count, Span<char> destination)
     {
         if (count < 0)
diff --git a/X10D/src/Text/StringExtensions.cs b/X10D/src/Text/StringExtensions.cs
index 6aef82b..7b0f048 100644
--- a/X10D/src/Text/StringExtensions.cs
+++ b/X10D/src/Text/StringExtensions.cs
@@ -894,7 +894,7 @@ public static class StringExtensions
     /// <exception cref="ArgumentException">
     ///     <paramref name="destination" /> is too short to contain the repeated string.
     /// </exception>
-    [MethodImpl(CompilerResources.MethodImplOptions)]
+    [MethodImpl(CompilerResources.MaxOptimization)]
     public static void Repeat(this string value, int count, Span<char> destination)
     {
         if (value is null)