From ad8d304163a8c0e8a20d4a1d9783734586273f4a Mon Sep 17 00:00:00 2001
From: Ben Kimock <kimockb@gmail.com>
Date: Sun, 16 Apr 2023 09:44:03 -0400
Subject: [PATCH] Implement StableHasher::write_u128 via write_u64

---
 compiler/rustc_data_structures/src/stable_hasher.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_data_structures/src/stable_hasher.rs b/compiler/rustc_data_structures/src/stable_hasher.rs
index 3ed1de1bc3c..1608009809f 100644
--- a/compiler/rustc_data_structures/src/stable_hasher.rs
+++ b/compiler/rustc_data_structures/src/stable_hasher.rs
@@ -107,7 +107,8 @@ fn write_u64(&mut self, i: u64) {
 
     #[inline]
     fn write_u128(&mut self, i: u128) {
-        self.state.write(&i.to_le_bytes());
+        self.write_u64(i as u64);
+        self.write_u64((i >> 64) as u64);
     }
 
     #[inline]