From d47864d4de5af28e071fc01fa6188f63c1199dde Mon Sep 17 00:00:00 2001
From: xtqqczze <45661989+xtqqczze@users.noreply.github.com>
Date: Thu, 3 Dec 2020 22:35:25 +0000
Subject: [PATCH] Avoid unnecessary array allocations when searching in GAC
 (#14291)

---
 .../CoreCLR/CorePsAssemblyLoadContext.cs                      | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/System.Management.Automation/CoreCLR/CorePsAssemblyLoadContext.cs b/src/System.Management.Automation/CoreCLR/CorePsAssemblyLoadContext.cs
index adc5771062..7799ec35cb 100644
--- a/src/System.Management.Automation/CoreCLR/CorePsAssemblyLoadContext.cs
+++ b/src/System.Management.Automation/CoreCLR/CorePsAssemblyLoadContext.cs
@@ -404,12 +404,12 @@ namespace System.Management.Automation
             if (Directory.Exists(tempAssemblyDirPath))
             {
                 // Enumerate all directories, sort by name and select the last. This selects the latest version.
-                var chosenVersionDirectory = Directory.GetDirectories(tempAssemblyDirPath).OrderBy(d => d).LastOrDefault();
+                var chosenVersionDirectory = Directory.EnumerateDirectories(tempAssemblyDirPath).OrderBy(d => d).LastOrDefault();
 
                 if (!string.IsNullOrEmpty(chosenVersionDirectory))
                 {
                     // Select first or default as the directory will contain only one assembly. If nothing then default is null;
-                    var foundAssemblyPath = Directory.GetFiles(chosenVersionDirectory, $"{assemblyName.Name}*").FirstOrDefault();
+                    var foundAssemblyPath = Directory.EnumerateFiles(chosenVersionDirectory, $"{assemblyName.Name}*").FirstOrDefault();
 
                     if (!string.IsNullOrEmpty(foundAssemblyPath))
                     {