38 lines
1.3 KiB
Rust
38 lines
1.3 KiB
Rust
#![feature(portable_simd)]
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macro_rules! cast_types {
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($start:ident, $($target:ident),*) => {
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mod $start {
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use core_simd::simd::Simd;
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type Vector<const N: usize> = Simd<$start, N>;
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$(
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mod $target {
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use super::*;
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test_helpers::test_lanes! {
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fn cast_as<const N: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<N>::cast::<$target>,
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&|x| x as $target,
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&|_| true,
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)
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}
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}
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}
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)*
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}
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};
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}
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// The hypothesis is that widening conversions aren't terribly interesting.
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cast_types!(f32, f64, i8, u8, usize, isize);
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cast_types!(f64, f32, i8, u8, usize, isize);
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cast_types!(i8, u8, f32);
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cast_types!(u8, i8, f32);
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cast_types!(i16, u16, i8, u8, f32);
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cast_types!(u16, i16, i8, u8, f32);
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cast_types!(i32, u32, i8, u8, f32, f64);
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cast_types!(u32, i32, i8, u8, f32, f64);
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cast_types!(i64, u64, i8, u8, isize, usize, f32, f64);
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cast_types!(u64, i64, i8, u8, isize, usize, f32, f64);
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cast_types!(isize, usize, i8, u8, f32, f64);
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cast_types!(usize, isize, i8, u8, f32, f64);
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