Fix spelling typos

2 files changed, 2 insertions, 2 deletions

diff --git a/src/libcore/hint.rs b/src/libcore/hint.rs
index f68a3e5a76f..a295e65bb55 100644
--- a/src/libcore/hint.rs
+++ b/src/libcore/hint.rs
@@ -113,7 +113,7 @@ pub fn spin_loop() {
 pub fn black_box<T>(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
-    // this. LLVM's intepretation of inline assembly is that it's, well, a black
+    // this. LLVM's interpretation of inline assembly is that it's, well, a black
     // box. This isn't the greatest implementation since it probably deoptimizes
     // more than we want, but it's so far good enough.
     unsafe {
diff --git a/src/libcore/intrinsics.rs b/src/libcore/intrinsics.rs
index 6de20418bb2..e3dc5630c94 100644
--- a/src/libcore/intrinsics.rs
+++ b/src/libcore/intrinsics.rs
@@ -1279,7 +1279,7 @@ extern "rust-intrinsic" {
     /// undefined behavior when `x + y > T::max_value()` or `x + y < T::min_value()`.
     pub fn unchecked_add<T>(x: T, y: T) -> T;
 
-    /// Returns the result of an unchecked substraction, resulting in
+    /// Returns the result of an unchecked subtraction, resulting in
     /// undefined behavior when `x - y > T::max_value()` or `x - y < T::min_value()`.
     pub fn unchecked_sub<T>(x: T, y: T) -> T;