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| author | Ralf Jung <post@ralfj.de> | 2024-12-04 08:37:23 +0100 |
|---|---|---|
| committer | Ralf Jung <post@ralfj.de> | 2024-12-04 08:39:19 +0100 |
| commit | f4217f42967621c53dbeb1ecdd698c1d17e97b7a (patch) | |
| tree | b92a8ed8ba18caf4040ea4564844cb4ed8b331ff | |
| parent | 3b382642aba7cffbb2f47829b24635fad87bcf5c (diff) | |
| download | rust-f4217f42967621c53dbeb1ecdd698c1d17e97b7a.tar.gz rust-f4217f42967621c53dbeb1ecdd698c1d17e97b7a.zip | |
clarify simd_relaxed_fma non-determinism
| -rw-r--r-- | library/core/src/intrinsics/simd.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/library/core/src/intrinsics/simd.rs b/library/core/src/intrinsics/simd.rs index 0d24b0558c5..f80a60d471c 100644 --- a/library/core/src/intrinsics/simd.rs +++ b/library/core/src/intrinsics/simd.rs @@ -619,7 +619,8 @@ extern "rust-intrinsic" { /// set has support for a fused operation, and that the fused operation is more efficient /// than the equivalent, separate pair of mul and add instructions. It is unspecified /// whether or not a fused operation is selected, and that may depend on optimization - /// level and context, for example. + /// level and context, for example. It may even be the case that some SIMD lanes get fused + /// and others do not. /// /// `T` must be a vector of floats. #[cfg(not(bootstrap))] |