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add vec_reve

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Folkert de Vries 2025-02-19 23:16:37 +01:00 committed by Amanieu d'Antras
parent 267558c5c2
commit e4d33640d0
1 changed files with 15 additions and 0 deletions
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15
library/stdarch/crates/core_arch/src/s390x/vector.rs
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@ -1212,6 +1212,21 @@ mod sealed {
unsafe fn vec_reve(self) -> Self;
}
#[repr(simd)]
struct ReverseMask<const N: usize>([u32; N]);
impl<const N: usize> ReverseMask<N> {
const fn new() -> Self {
let mut index = [0; N];
let mut i = 0;
while i < N {
index[i] = (N - i - 1) as u32;
i += 1;
}
ReverseMask(index)
}
}
macro_rules! impl_reve {
($($ty:ident, $fun:ident, $instr:ident),*) => {
$(