diff options
Diffstat (limited to 'library/std/src/f64.rs')
| -rw-r--r-- | library/std/src/f64.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs index 64bb7cd9fd1..e823ac43fdd 100644 --- a/library/std/src/f64.rs +++ b/library/std/src/f64.rs @@ -206,8 +206,10 @@ impl f64 { /// Fused multiply-add. Computes `(self * a) + b` with only one rounding /// error, yielding a more accurate result than an unfused multiply-add. /// - /// Using `mul_add` can be more performant than an unfused multiply-add if - /// the target architecture has a dedicated `fma` CPU instruction. + /// Using `mul_add` *may* be more performant than an unfused multiply-add if + /// the target architecture has a dedicated `fma` CPU instruction. However, + /// this is not always true, and will be heavily dependant on designing + /// algorithms with specific target hardware in mind. /// /// # Examples /// |