From 02274cb31cca8530480e6087564abe78a72d198d Mon Sep 17 00:00:00 2001
From: Tanner Gooding <tagoo@outlook.com>
Date: Tue, 4 Dec 2018 05:51:50 -0800
Subject: Fixing the Vector64/128/256<T>.ToString(string) methods to pass
 `null` for the formatProvider (#21350)

---
 .../shared/System/Runtime/Intrinsics/Vector128_1.cs                     | 2 +-
 .../shared/System/Runtime/Intrinsics/Vector256_1.cs                     | 2 +-
 .../shared/System/Runtime/Intrinsics/Vector64_1.cs                      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector128_1.cs b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector128_1.cs
index da73f87e70..72cbc8253c 100644
--- a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector128_1.cs
+++ b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector128_1.cs
@@ -323,7 +323,7 @@ namespace System.Runtime.Intrinsics
         /// <exception cref="NotSupportedException">The type of the current instance (<typeparamref name="T" />) is not supported.</exception>
         public string ToString(string format)
         {
-            return ToString(format, CultureInfo.CurrentCulture);
+            return ToString(format, formatProvider: null);
         }
 
         /// <summary>Converts the current instance to an equivalent string representation using the specified format.</summary>
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector256_1.cs b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector256_1.cs
index 3731698308..7020b3c8ac 100644
--- a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector256_1.cs
+++ b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector256_1.cs
@@ -325,7 +325,7 @@ namespace System.Runtime.Intrinsics
         /// <exception cref="NotSupportedException">The type of the current instance (<typeparamref name="T" />) is not supported.</exception>
         public string ToString(string format)
         {
-            return ToString(format, CultureInfo.CurrentCulture);
+            return ToString(format, formatProvider: null);
         }
 
         /// <summary>Converts the current instance to an equivalent string representation using the specified format.</summary>
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector64_1.cs b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector64_1.cs
index b19054917b..be524700ad 100644
--- a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector64_1.cs
+++ b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Vector64_1.cs
@@ -270,7 +270,7 @@ namespace System.Runtime.Intrinsics
         /// <exception cref="NotSupportedException">The type of the current instance (<typeparamref name="T" />) is not supported.</exception>
         public string ToString(string format)
         {
-            return ToString(format, CultureInfo.CurrentCulture);
+            return ToString(format, formatProvider: null);
         }
 
         /// <summary>Converts the current instance to an equivalent string representation using the specified format.</summary>
-- 
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