From 0baf25d2c4a44f67b8a143177d1bad541d774661 Mon Sep 17 00:00:00 2001
From: Peter Ullrich <PJUllrich@users.noreply.github.com>
Date: Sat, 2 May 2026 14:36:46 +0200
Subject: [PATCH 1/2] Inline `decode_name/1 in all three compile-time blocks
 Unroll validate16XXX for 8/4/2 bytes Fast-path remove_ignored/2

---
 lib/elixir/lib/base.ex | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/lib/elixir/lib/base.ex b/lib/elixir/lib/base.ex
index d2e3da7ca77..a59f3506bac 100644
--- a/lib/elixir/lib/base.ex
+++ b/lib/elixir/lib/base.ex
@@ -152,7 +152,10 @@ defmodule Base do
   defp remove_ignored(string, nil), do: string
 
   defp remove_ignored(string, :whitespace) do
-    for <<char::8 <- string>>, char not in ~c"\s\t\r\n", into: <<>>, do: <<char::8>>
+    case :binary.match(string, [<<?\s>>, <<?\t>>, <<?\r>>, <<?\n>>]) do
+      :nomatch -> string
+      _ -> for <<char::8 <- string>>, char not in ~c"\s\t\r\n", into: <<>>, do: <<char::8>>
+    end
   end
 
   @doc """
@@ -376,6 +379,26 @@ defmodule Base do
 
     defp unquote(validate_name)(<<>>), do: true
 
+    defp unquote(validate_name)(<<c1, c2, c3, c4, c5, c6, c7, c8, rest::binary>>) do
+      unquote(valid_char_name)(c1) and
+        unquote(valid_char_name)(c2) and
+        unquote(valid_char_name)(c3) and
+        unquote(valid_char_name)(c4) and
+        unquote(valid_char_name)(c5) and
+        unquote(valid_char_name)(c6) and
+        unquote(valid_char_name)(c7) and
+        unquote(valid_char_name)(c8) and
+        unquote(validate_name)(rest)
+    end
+
+    defp unquote(validate_name)(<<c1, c2, c3, c4, rest::binary>>) do
+      unquote(valid_char_name)(c1) and
+        unquote(valid_char_name)(c2) and
+        unquote(valid_char_name)(c3) and
+        unquote(valid_char_name)(c4) and
+        unquote(validate_name)(rest)
+    end
+
     defp unquote(validate_name)(<<c1, c2, rest::binary>>) do
       unquote(valid_char_name)(c1) and
         unquote(valid_char_name)(c2) and
@@ -391,6 +414,7 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
+    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)
 
@@ -870,6 +894,7 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
+    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)
 
@@ -1526,6 +1551,7 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
+    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)
 

From 67fbe99c1616b01496b05a1d2981887ed0ff7116 Mon Sep 17 00:00:00 2001
From: Peter Ullrich <PJUllrich@users.noreply.github.com>
Date: Sat, 2 May 2026 18:48:10 +0200
Subject: [PATCH 2/2] Revert decode_name and remove_ignored changes

---
 lib/elixir/lib/base.ex | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/lib/elixir/lib/base.ex b/lib/elixir/lib/base.ex
index a59f3506bac..ef739ad029c 100644
--- a/lib/elixir/lib/base.ex
+++ b/lib/elixir/lib/base.ex
@@ -152,10 +152,7 @@ defmodule Base do
   defp remove_ignored(string, nil), do: string
 
   defp remove_ignored(string, :whitespace) do
-    case :binary.match(string, [<<?\s>>, <<?\t>>, <<?\r>>, <<?\n>>]) do
-      :nomatch -> string
-      _ -> for <<char::8 <- string>>, char not in ~c"\s\t\r\n", into: <<>>, do: <<char::8>>
-    end
+    for <<char::8 <- string>>, char not in ~c"\s\t\r\n", into: <<>>, do: <<char::8>>
   end
 
   @doc """
@@ -414,7 +411,6 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
-    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)
 
@@ -894,7 +890,6 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
-    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)
 
@@ -1551,7 +1546,6 @@ defmodule Base do
 
     defp unquote(valid_char_name)(_char), do: false
 
-    @compile {:inline, [{decode_name, 1}]}
     defp unquote(decode_name)(char) do
       index = char - unquote(min)