diff --git a/library/core/src/num/f16.rs b/library/core/src/num/f16.rs
index 1e2f841aca733..dfa4740a9d856 100644
--- a/library/core/src/num/f16.rs
+++ b/library/core/src/num/f16.rs
@@ -435,6 +435,7 @@ impl f16 {
         // WASM, see llvm/llvm-project#96437). These are platforms bugs, and Rust will misbehave on
         // such platforms, but we can at least try to make things seem as sane as possible by being
         // careful here.
+        // Cc https://github.com/rust-lang/rust/issues/114479
         if self.is_infinite() {
             // Thus, a value may compare unequal to infinity, despite having a "full" exponent mask.
             FpCategory::Infinite
diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs
index 4c08994603334..90bfb073e0074 100644
--- a/library/core/src/num/f32.rs
+++ b/library/core/src/num/f32.rs
@@ -662,6 +662,7 @@ impl f32 {
         // hardware flushes subnormals to zero. These are platforms bugs, and Rust will misbehave on
         // such hardware, but we can at least try to make things seem as sane as possible by being
         // careful here.
+        // Cc https://github.com/rust-lang/rust/issues/114479
         if self.is_infinite() {
             // A value may compare unequal to infinity, despite having a "full" exponent mask.
             FpCategory::Infinite
diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs
index bcef8fe7724b1..a9240e9bd99dd 100644
--- a/library/core/src/num/f64.rs
+++ b/library/core/src/num/f64.rs
@@ -660,6 +660,7 @@ impl f64 {
         // float semantics Rust relies on: x87 uses a too-large exponent, and some hardware flushes
         // subnormals to zero. These are platforms bugs, and Rust will misbehave on such hardware,
         // but we can at least try to make things seem as sane as possible by being careful here.
+        // Cc https://github.com/rust-lang/rust/issues/114479
         //
         // Thus, a value may compare unequal to infinity, despite having a "full" exponent mask.
         // And it may not be NaN, as it can simply be an "overextended" finite value.
diff --git a/tests/ui/numbers-arithmetic/issue-105626.rs b/tests/ui/numbers-arithmetic/issue-105626.rs
index f942cf1283d0d..d7144b179f9d1 100644
--- a/tests/ui/numbers-arithmetic/issue-105626.rs
+++ b/tests/ui/numbers-arithmetic/issue-105626.rs
@@ -11,6 +11,7 @@ fn main() {
     assert_ne!((n as f64) as f32, n as f32);
 
     // FIXME: these assertions fail if only x87 is enabled
+    // Cc https://github.com/rust-lang/rust/issues/114479
     assert_eq!(n as i64 as f32, r);
     assert_eq!(n as u64 as f32, r);
 }