This unsafe variant allows the thinnest API, in case LLVM cannot
perform loop-invariant code motion on a hot loop when the safe
form is used.
An unchecked variant could be added to other forms, but doesn't
seem likely to improve anything, since it would just add heavier
codegen.
Aligns module with rust-lang/library/core, creating an... unusual
architecture that is easier to pull in as a module, as core itself can
have no dependencies (as we haven't built core yet).
Clean up references to the repo's previous name.
Removes the authors field, which is non-obligatory since RFC 3052.
Better to omit than confound: let git log be our witness.
Feature/const eval checked
Adds the const_evaluatable_checked cargo feature for some experimental (but very useful) function implementations. Adds testing all cargo features to CI.
Combine LanesAtMost32 and SimdArray into a single trait "Vector"
Attempts to fix some unresolved questions in #139 regarding `SimdArray` having a generic parameter.
In particular, this made it not appropriate for replacing `LanesAtMost32`. Additionally, it made it impossible to use in a context where you otherwise don't know the lane count, e.g. `impl Vector`.
An unfortunate side effect of this change is that scatter/gather no longer work in the trait (nor does anything else that references the lane count in a type. This requires the super-unstable `const_evaluatable_checked` feature).
I also threw in the change from `as_slice` to `as_array` as discussed in zulip, and fixes#51.
Add SimdArray trait and safe gather/scatter API (rust-lang/stdsimd#139)
This PR has four parts, without which it doesn't make a lot of sense:
- The introduction of the SimdArray trait for abstraction over vectors.
- The implementation of private vector-of-pointers types.
- Using these to allow constructing vectors with SimdArray::gather_{or, or_default, select}.
- Using these to allow writing vectors using SimdArray::scatter{,_select}.
