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Clarify UB and improve grammar

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Co-authored-by: Ralf Jung <post@ralfj.de>
This commit is contained in:
Caleb Zulawski 2023-12-17 12:48:17 -05:00
parent ef4cf01542
commit 1fd7de062e
1 changed files with 4 additions and 4 deletions
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8
library/core/src/intrinsics/simd.rs
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@ -36,7 +36,7 @@ extern "platform-intrinsic" {
/// Additionally for signed integers, `<int>::MIN / -1` is undefined behavior.
pub fn simd_rem<T>(lhs: T, rhs: T) -> T;
/// Elementwise vector left shift.
/// Elementwise vector left shift, with UB on overflow.
///
/// Shift `lhs` left by `rhs`, shifting in sign bits for signed types.
///
@ -47,7 +47,7 @@ extern "platform-intrinsic" {
/// Each element of `rhs` must be less than `<int>::BITS`.
pub fn simd_shl<T>(lhs: T, rhs: T) -> T;
/// Elementwise vector right shift.
/// Elementwise vector right shift, with UB on overflow.
///
/// Shift `lhs` right by `rhs`, shifting in sign bits for signed types.
///
@ -75,11 +75,11 @@ extern "platform-intrinsic" {
/// Numerically cast a vector, elementwise.
///
/// When casting floats to integers, the result is truncated.
/// When casting floats to integers, the result is truncated. Out-of-bounds result lead to UB.
/// When casting integers to floats, the result is rounded.
/// Otherwise, truncates or extends the value, maintaining the sign for signed integers.
///
/// `T` and `U` be a vectors of integer or floating point primitive types, and must have the
/// `T` and `U` must be vectors of integer or floating point primitive types, and must have the
/// same length.
///
/// # Safety