From 50f8062316e37e9be6ee58dc7e5311a5515591da Mon Sep 17 00:00:00 2001
From: Jakub Beránek <berykubik@gmail.com>
Date: Mon, 17 Jan 2022 21:26:04 +0100
Subject: Revert "Do not hash leading zero bytes of i64 numbers in Sip128
 hasher"

---
 compiler/rustc_data_structures/src/sip128.rs | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

(limited to 'compiler/rustc_data_structures/src')

diff --git a/compiler/rustc_data_structures/src/sip128.rs b/compiler/rustc_data_structures/src/sip128.rs
index 872b0eb7854..53062b9c20d 100644
--- a/compiler/rustc_data_structures/src/sip128.rs
+++ b/compiler/rustc_data_structures/src/sip128.rs
@@ -409,20 +409,6 @@ impl SipHasher128 {
     }
 }
 
-macro_rules! dispatch_value {
-    ($target: expr, $value:expr) => {
-        let value = $value;
-        #[allow(unreachable_patterns)]
-        #[allow(overflowing_literals)]
-        match value {
-            0..=0xFF => $target.short_write(value as u8),
-            0x100..=0xFFFF => $target.short_write(value as u16),
-            0x10000..=0xFFFFFFFF => $target.short_write(value as u32),
-            _ => $target.short_write(value as u64),
-        }
-    };
-}
-
 impl Hasher for SipHasher128 {
     #[inline]
     fn write_u8(&mut self, i: u8) {
@@ -436,7 +422,7 @@ impl Hasher for SipHasher128 {
 
     #[inline]
     fn write_u32(&mut self, i: u32) {
-        dispatch_value!(self, i);
+        self.short_write(i);
     }
 
     #[inline]
@@ -466,7 +452,7 @@ impl Hasher for SipHasher128 {
 
     #[inline]
     fn write_i64(&mut self, i: i64) {
-        dispatch_value!(self, i as u64);
+        self.short_write(i as u64);
     }
 
     #[inline]
-- 
cgit 1.4.1-3-g733a5