From fe2a867125ff80dcb12df19581bd28b342b15c28 Mon Sep 17 00:00:00 2001
From: Jubilee <46493976+workingjubilee@users.noreply.github.com>
Date: Thu, 20 Aug 2020 15:55:02 -0700
Subject: [PATCH] Be explicit that we're handling bytes

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
---
 compiler/rustc_middle/src/mir/interpret/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs
index afbb67555df4..90f8195a50cb 100644
--- a/compiler/rustc_middle/src/mir/interpret/mod.rs
+++ b/compiler/rustc_middle/src/mir/interpret/mod.rs
@@ -570,7 +570,7 @@ pub fn write_target_uint(
 
 #[inline]
 pub fn read_target_uint(endianness: Endian, mut source: &[u8]) -> Result<u128, io::Error> {
-    let mut buf = [0; 16];
+    let mut buf = [0u8; std::mem::size_of::<u128>()];
     source.read(&mut buf)?;
     match endianness {
         Endian::Little => Ok(u128::from_le_bytes(buf)),