Fix contained LEA handling (#25135)

* Fix contained LEA handling

This adds an LEA case to both `LinearScan::BuildOperandUses` and `CodeGen::genConsumeRegs`.

Fix #25039

2 files changed, 98 insertions, 0 deletions

diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.cs b/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.cs
new file mode 100644
index 0000000000..1c4b98f098
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.cs
@@ -0,0 +1,64 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.X86;
+using static System.Runtime.Intrinsics.X86.Avx;
+using static System.Runtime.Intrinsics.X86.Avx2;
+
+class GitHub_25039
+{
+    static ReadOnlySpan<byte> PermTable => new byte[]
+    {
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+        0, 1, 2, 3, 4, 5, 6, 7, /* 0*/
+    };
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    static unsafe Vector256<int> GetPermutation(byte* pBase, int pvbyte)
+    {
+        Debug.Assert(pvbyte >= 0);
+        Debug.Assert(pvbyte < 255);
+        Debug.Assert(pBase != null);
+        return ConvertToVector256Int32(pBase + pvbyte * 8);
+    }
+
+    static unsafe int Main(string[] args)
+    {
+        if (System.Runtime.Intrinsics.X86.Avx2.IsSupported)
+        {
+            try
+            {
+                var src = new int[1024];
+                fixed (int* pSrc = &src[0])
+                fixed (byte* pBase = &PermTable[0])
+                {
+
+                    for (var i = 0; i < 100; i++)
+                    {
+                        var srcv = LoadDquVector256(pSrc + i);
+                        var pe = i & 0x7;
+                        var permuted = PermuteVar8x32(srcv, GetPermutation(pBase, (int)pe));
+                        Store(pSrc + i, permuted);
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine("Failed with exception " + e.Message);
+                return -1;
+            }
+        }
+        return 100;
+    }
+}
diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.csproj b/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.csproj
new file mode 100644
index 0000000000..bed7e2e916
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_25039/GitHub_25039.csproj
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{95DFC527-4DC1-495E-97D7-E94EE1F7140D}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "></PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' " />
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <PropertyGroup>
+    <DebugType>None</DebugType>
+    <Optimize>True</Optimize>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+  </PropertyGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="$(MSBuildProjectName).cs" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+  <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' "></PropertyGroup>
+</Project>