diff --git a/src/libraries/System.Runtime.Intrinsics/System.Runtime.Intrinsics.sln b/src/libraries/System.Runtime.Intrinsics/System.Runtime.Intrinsics.sln
index bf8bf7e0a7310..4053b3001ca7e 100644
--- a/src/libraries/System.Runtime.Intrinsics/System.Runtime.Intrinsics.sln
+++ b/src/libraries/System.Runtime.Intrinsics/System.Runtime.Intrinsics.sln
@@ -1,4 +1,8 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.34516.246
+MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "System.Private.CoreLib", "..\..\coreclr\System.Private.CoreLib\System.Private.CoreLib.csproj", "{5965CFFE-886A-418C-854F-5967D91DE914}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestUtilities.Unicode", "..\Common\tests\TestUtilities.Unicode\TestUtilities.Unicode.csproj", "{2644B828-C37C-45C1-933D-27E82DA0A098}"
@@ -41,16 +45,21 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ref", "ref", "{E7A9B89D-A9F
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "gen", "{A499E9EC-3C82-4B0A-AC49-111C706B1835}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "tools\gen", "{0ECF6939-6099-448F-A3E5-B8069E092C2F}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "gen", "{0ECF6939-6099-448F-A3E5-B8069E092C2F}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "tools\src", "{5D25490B-EE25-44ED-9B06-D0A41C73DB12}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{5D25490B-EE25-44ED-9B06-D0A41C73DB12}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ref", "tools\ref", "{BFA6F611-C767-4697-AD3E-9E3FF6132FAB}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ref", "ref", "{BFA6F611-C767-4697-AD3E-9E3FF6132FAB}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tools", "tools", "{D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Checked|Any CPU = Checked|Any CPU
+		Checked|arm = Checked|arm
+		Checked|arm64 = Checked|arm64
+		Checked|x64 = Checked|x64
+		Checked|x86 = Checked|x86
 		Debug|Any CPU = Debug|Any CPU
 		Debug|arm = Debug|arm
 		Debug|arm64 = Debug|arm64
@@ -61,13 +70,18 @@ Global
 		Release|arm64 = Release|arm64
 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
-		Checked|Any CPU = Checked|Any CPU
-		Checked|arm = Checked|arm
-		Checked|arm64 = Checked|arm64
-		Checked|x64 = Checked|x64
-		Checked|x86 = Checked|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|Any CPU.ActiveCfg = Checked|x64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|Any CPU.Build.0 = Checked|x64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm.ActiveCfg = Checked|arm
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm.Build.0 = Checked|arm
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm64.ActiveCfg = Checked|arm64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm64.Build.0 = Checked|arm64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x64.ActiveCfg = Checked|x64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x64.Build.0 = Checked|x64
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x86.ActiveCfg = Checked|x86
+		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x86.Build.0 = Checked|x86
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Debug|Any CPU.ActiveCfg = Debug|x64
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Debug|Any CPU.Build.0 = Debug|x64
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Debug|arm.ActiveCfg = Debug|arm
@@ -88,16 +102,11 @@ Global
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Release|x64.Build.0 = Release|x64
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Release|x86.ActiveCfg = Release|x86
 		{5965CFFE-886A-418C-854F-5967D91DE914}.Release|x86.Build.0 = Release|x86
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|Any CPU.ActiveCfg = Checked|x64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|Any CPU.Build.0 = Checked|x64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm.ActiveCfg = Checked|arm
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm.Build.0 = Checked|arm
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm64.ActiveCfg = Checked|arm64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|arm64.Build.0 = Checked|arm64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x64.ActiveCfg = Checked|x64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x64.Build.0 = Checked|x64
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x86.ActiveCfg = Checked|x86
-		{5965CFFE-886A-418C-854F-5967D91DE914}.Checked|x86.Build.0 = Checked|x86
+		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -114,11 +123,11 @@ Global
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Release|x64.Build.0 = Release|Any CPU
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Release|x86.ActiveCfg = Release|Any CPU
 		{2644B828-C37C-45C1-933D-27E82DA0A098}.Release|x86.Build.0 = Release|Any CPU
-		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{2644B828-C37C-45C1-933D-27E82DA0A098}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -135,11 +144,11 @@ Global
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Release|x64.Build.0 = Release|Any CPU
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Release|x86.ActiveCfg = Release|Any CPU
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Release|x86.Build.0 = Release|Any CPU
-		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{EFF55B56-D92B-4573-94EA-AF5B3B001C34}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -156,11 +165,11 @@ Global
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Release|x64.Build.0 = Release|Any CPU
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Release|x86.ActiveCfg = Release|Any CPU
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Release|x86.Build.0 = Release|Any CPU
-		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -177,11 +186,11 @@ Global
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Release|x64.Build.0 = Release|Any CPU
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Release|x86.ActiveCfg = Release|Any CPU
 		{A4058388-97C1-492A-86A4-5240C4166BFF}.Release|x86.Build.0 = Release|Any CPU
-		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{A4058388-97C1-492A-86A4-5240C4166BFF}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -198,11 +207,11 @@ Global
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Release|x64.Build.0 = Release|Any CPU
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Release|x86.ActiveCfg = Release|Any CPU
 		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Release|x86.Build.0 = Release|Any CPU
-		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{9D4B472B-6C86-4CEC-998D-800937DBD399}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -219,11 +228,11 @@ Global
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Release|x64.Build.0 = Release|Any CPU
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Release|x86.ActiveCfg = Release|Any CPU
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Release|x86.Build.0 = Release|Any CPU
-		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -240,11 +249,11 @@ Global
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Release|x64.Build.0 = Release|Any CPU
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Release|x86.ActiveCfg = Release|Any CPU
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Release|x86.Build.0 = Release|Any CPU
-		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -261,11 +270,11 @@ Global
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Release|x64.Build.0 = Release|Any CPU
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Release|x86.ActiveCfg = Release|Any CPU
 		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Release|x86.Build.0 = Release|Any CPU
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -282,11 +291,11 @@ Global
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Release|x64.Build.0 = Release|Any CPU
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Release|x86.ActiveCfg = Release|Any CPU
 		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Release|x86.Build.0 = Release|Any CPU
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -303,11 +312,11 @@ Global
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Release|x64.Build.0 = Release|Any CPU
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Release|x86.ActiveCfg = Release|Any CPU
 		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Release|x86.Build.0 = Release|Any CPU
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -324,11 +333,11 @@ Global
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Release|x64.Build.0 = Release|Any CPU
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Release|x86.ActiveCfg = Release|Any CPU
 		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Release|x86.Build.0 = Release|Any CPU
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -345,11 +354,11 @@ Global
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Release|x64.Build.0 = Release|Any CPU
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Release|x86.ActiveCfg = Release|Any CPU
 		{022E0D70-D39E-4715-8484-8D2AC264304B}.Release|x86.Build.0 = Release|Any CPU
-		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{022E0D70-D39E-4715-8484-8D2AC264304B}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -366,11 +375,11 @@ Global
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Release|x64.Build.0 = Release|Any CPU
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Release|x86.ActiveCfg = Release|Any CPU
 		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Release|x86.Build.0 = Release|Any CPU
-		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{31B3B363-9E3C-4B29-B040-804F65F03D12}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -387,11 +396,11 @@ Global
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Release|x64.Build.0 = Release|Any CPU
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Release|x86.ActiveCfg = Release|Any CPU
 		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Release|x86.Build.0 = Release|Any CPU
-		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{9AF18F33-B541-4C24-A474-2DAF277D436E}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -408,11 +417,11 @@ Global
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Release|x64.Build.0 = Release|Any CPU
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Release|x86.ActiveCfg = Release|Any CPU
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Release|x86.Build.0 = Release|Any CPU
-		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{822F0A44-721C-42BB-8C66-C73ADC29D0D6}.Checked|x86.ActiveCfg = Debug|Any CPU
+		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
+		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|arm.ActiveCfg = Debug|Any CPU
+		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|arm64.ActiveCfg = Debug|Any CPU
+		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|x64.ActiveCfg = Debug|Any CPU
+		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|x86.ActiveCfg = Debug|Any CPU
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Debug|arm.ActiveCfg = Debug|Any CPU
@@ -429,38 +438,38 @@ Global
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Release|x64.Build.0 = Release|Any CPU
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Release|x86.ActiveCfg = Release|Any CPU
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Release|x86.Build.0 = Release|Any CPU
-		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|Any CPU.ActiveCfg = Debug|Any CPU
-		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|arm.ActiveCfg = Debug|Any CPU
-		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|arm64.ActiveCfg = Debug|Any CPU
-		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|x64.ActiveCfg = Debug|Any CPU
-		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE}.Checked|x86.ActiveCfg = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{5965CFFE-886A-418C-854F-5967D91DE914} = {F110DBFA-22D7-486A-993D-5461A57A1D50}
-		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C} = {F110DBFA-22D7-486A-993D-5461A57A1D50}
 		{2644B828-C37C-45C1-933D-27E82DA0A098} = {C5014AA7-5C35-45D5-B7C6-48A5E93A758E}
 		{EFF55B56-D92B-4573-94EA-AF5B3B001C34} = {C5014AA7-5C35-45D5-B7C6-48A5E93A758E}
-		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19} = {C5014AA7-5C35-45D5-B7C6-48A5E93A758E}
 		{A296D1D4-71D3-47CF-A572-DD7C3CFE472F} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
-		{9D4B472B-6C86-4CEC-998D-800937DBD399} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
-		{28B808CE-B1F8-4B05-9ADA-8884525BD87F} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
-		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
 		{A4058388-97C1-492A-86A4-5240C4166BFF} = {A499E9EC-3C82-4B0A-AC49-111C706B1835}
+		{9D4B472B-6C86-4CEC-998D-800937DBD399} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
 		{FE8C7C64-1759-4175-BA6E-03F8D6B7C6EF} = {A499E9EC-3C82-4B0A-AC49-111C706B1835}
 		{9A0BF7EC-AD07-44C8-9B70-9DACB2C894C7} = {A499E9EC-3C82-4B0A-AC49-111C706B1835}
+		{28B808CE-B1F8-4B05-9ADA-8884525BD87F} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
+		{5AD79501-BEA5-48C7-B466-021A9DCB9D5C} = {F110DBFA-22D7-486A-993D-5461A57A1D50}
+		{80AFB6EB-AB23-48A1-951C-76E6FEA29D19} = {C5014AA7-5C35-45D5-B7C6-48A5E93A758E}
+		{2A6ED99F-FFEC-4FA7-BEF7-E5339C9D99BB} = {E7A9B89D-A9F5-40FD-93CA-CAF4522A80E0}
 		{022E0D70-D39E-4715-8484-8D2AC264304B} = {0ECF6939-6099-448F-A3E5-B8069E092C2F}
 		{31B3B363-9E3C-4B29-B040-804F65F03D12} = {0ECF6939-6099-448F-A3E5-B8069E092C2F}
-		{0ECF6939-6099-448F-A3E5-B8069E092C2F} = {D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}
 		{9AF18F33-B541-4C24-A474-2DAF277D436E} = {5D25490B-EE25-44ED-9B06-D0A41C73DB12}
 		{822F0A44-721C-42BB-8C66-C73ADC29D0D6} = {5D25490B-EE25-44ED-9B06-D0A41C73DB12}
-		{5D25490B-EE25-44ED-9B06-D0A41C73DB12} = {D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}
 		{A87F8371-F4AD-4214-86BD-0A9B59CCA0AE} = {BFA6F611-C767-4697-AD3E-9E3FF6132FAB}
+		{0ECF6939-6099-448F-A3E5-B8069E092C2F} = {D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}
+		{5D25490B-EE25-44ED-9B06-D0A41C73DB12} = {D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}
 		{BFA6F611-C767-4697-AD3E-9E3FF6132FAB} = {D9C1BAD0-2991-4FC9-9718-3EF7D2B7A54F}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {9205DA5F-88A2-4045-9B31-9CC53CCF7550}
 	EndGlobalSection
+	GlobalSection(SharedMSBuildProjectFiles) = preSolution
+		..\..\tools\illink\src\ILLink.Shared\ILLink.Shared.projitems*{31b3b363-9e3c-4b29-b040-804f65f03d12}*SharedItemsImports = 5
+		..\System.Private.CoreLib\src\System.Private.CoreLib.Shared.projitems*{5965cffe-886a-418c-854f-5967d91de914}*SharedItemsImports = 5
+		..\..\tools\illink\src\ILLink.Shared\ILLink.Shared.projitems*{822f0a44-721c-42bb-8c66-c73adc29d0d6}*SharedItemsImports = 5
+	EndGlobalSection
 EndGlobal
diff --git a/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector128Tests.cs b/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector128Tests.cs
index eec2134daf6e6..d578a70c36b12 100644
--- a/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector128Tests.cs
+++ b/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector128Tests.cs
@@ -4,6 +4,7 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Numerics;
 using System.Reflection;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using Xunit;
 
@@ -4736,5 +4737,53 @@ public void Log2SingleTest(float value, float expectedResult, float variance)
             Vector128<float> actualResult = Vector128.Log2(Vector128.Create(value));
             AssertEqual(Vector128.Create(expectedResult), actualResult, Vector128.Create(variance));
         }
+
+        [Fact]
+        public void NarrowShortToSByte()
+        {
+            for (int i = 0; i < 256; i++)
+            {
+                short[] input = new short[16];
+                Array.Fill(input, (short)19752);
+
+                sbyte[] output = new sbyte[16];
+                new Random(42).NextBytes(MemoryMarshal.AsBytes(output.AsSpan()));
+
+                Vector128<short> v1 = Vector128.LoadUnsafe(ref MemoryMarshal.GetArrayDataReference(input));
+                Vector128<short> v2 = Vector128.LoadUnsafe(ref Unsafe.Add(ref MemoryMarshal.GetArrayDataReference(input), Vector128<short>.Count));
+
+                Vector128<sbyte> result = Vector128.Narrow(v1, v2);
+                result.StoreUnsafe(ref MemoryMarshal.GetArrayDataReference(output));
+
+                foreach (sbyte sb in output)
+                {
+                    Assert.Equal(40, sb);
+                }
+            }
+        }
+
+        [Fact]
+        public void NarrowDoubleToSingle()
+        {
+            for (int i = 0; i < 256; i++)
+            {
+                double[] input = new double[4];
+                Array.Fill(input, -1.551187198625913E+38);
+
+                float[] output = new float[4];
+                new Random(42).NextBytes(MemoryMarshal.AsBytes(output.AsSpan()));
+
+                Vector128<double> v1 = Vector128.LoadUnsafe(ref MemoryMarshal.GetArrayDataReference(input));
+                Vector128<double> v2 = Vector128.LoadUnsafe(ref Unsafe.Add(ref MemoryMarshal.GetArrayDataReference(input), Vector128<double>.Count));
+
+                Vector128<float> result = Vector128.Narrow(v1, v2);
+                result.StoreUnsafe(ref MemoryMarshal.GetArrayDataReference(output));
+
+                foreach (float f in output)
+                {
+                    Assert.Equal(-1.55118723E+38, f, 0.01E+38);
+                }
+            }
+        }
     }
 }