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Rollup merge of #119203 - farnoy:simd-masked-intrinsic-docfix, r=RalfJung

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Correct the simd_masked_{load,store} intrinsic docs

Explains the uniform pointer being used for these two operations and how elements are offset from it.
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Matthias Krüger 2024-02-20 19:35:39 +01:00 committed by GitHub
commit fc5f6f88e5
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1 changed files with 6 additions and 4 deletions
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10
library/core/src/intrinsics/simd.rs
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@ -259,12 +259,13 @@ extern "platform-intrinsic" {
///
/// `T` must be a vector.
///
/// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`.
/// `U` must be a pointer to the element type of `T`
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each element, if the corresponding value in `mask` is `!0`, read the corresponding
/// pointer from `ptr`.
/// pointer offset from `ptr`.
/// The first element is loaded from `ptr`, the second from `ptr.wrapping_offset(1)` and so on.
/// Otherwise if the corresponding value in `mask` is `0`, return the corresponding value from
/// `val`.
///
@ -279,12 +280,13 @@ extern "platform-intrinsic" {
///
/// `T` must be a vector.
///
/// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`.
/// `U` must be a pointer to the element type of `T`
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each element, if the corresponding value in `mask` is `!0`, write the corresponding
/// value in `val` to the pointer.
/// value in `val` to the pointer offset from `ptr`.
/// The first element is written to `ptr`, the second to `ptr.wrapping_offset(1)` and so on.
/// Otherwise if the corresponding value in `mask` is `0`, do nothing.
///
/// # Safety