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Diffstat (limited to 'library/core/src/hint.rs')
| -rw-r--r-- | library/core/src/hint.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs index e53682ece1d..4eb47dd1378 100644 --- a/library/core/src/hint.rs +++ b/library/core/src/hint.rs @@ -111,7 +111,7 @@ pub fn spin_loop() { #[cfg_attr(not(miri), inline)] #[cfg_attr(miri, inline(never))] #[unstable(feature = "test", issue = "50297")] -#[allow(unreachable_code)] // this makes #[cfg] a bit easier below. +#[cfg_attr(miri, allow(unused_mut))] pub fn black_box<T>(mut dummy: T) -> T { // We need to "use" the argument in some way LLVM can't introspect, and on // targets that support it we can typically leverage inline assembly to do |