Fix optimization of Vector512 And + Not to AndNot

src/coreclr/jit/lowerxarch.cpp

@@ -2030,7 +2030,7 @@ GenTree* Lowering::LowerHWIntrinsic(GenTreeHWIntrinsic* node)
                 {
                     transform = true;
 
-                    op1 = opIntrin->Op(1);
+                    op2 = opIntrin->Op(1);
                     BlockRange().Remove(opIntrin);
 
                     std::swap(op1, op2);

src/tests/JIT/Regression/JitBlue/Runtime_108613/Runtime_108613.cs

@@ -0,0 +1,31 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Reduced test case from Antigen.
+//
+// Failure:
+//   Assertion failed 'false && "found use of a node that is not in the LIR sequence"'
+
+using System;
+using System.Runtime.Intrinsics;
+using Xunit;
+
+public class Runtime_108613
+{
+    Vector512<uint> v512_uint_104 = Vector512.Create((uint)2, 3, 3, 57, 57, 57, 5, 2, 0, 2, 57, 57, 57, 2, 5, 2);
+    public int Method0()
+    {
+        Vector512<uint> x = Vector512.AndNot(Vector512.Equals(v512_uint_104, v512_uint_104), Vector512.Equals(v512_uint_104, v512_uint_104));
+        return (int)x.GetElement(2);
+    }
+
+    [Fact]
+    public static void TestEntryPoint()
+    {
+        if (Vector512.IsHardwareAccelerated)
+        {
+            Runtime_108613 t = new Runtime_108613();
+            Assert.Equal(0, t.Method0());
+        }
+    }
+}

src/tests/JIT/Regression/JitBlue/Runtime_108613/Runtime_108613.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <Optimize>True</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="$(MSBuildProjectName).cs" />
+  </ItemGroup>
+</Project>