From ef24de24a82fe681581cc130f342363c47c0969a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 7 Jun 2024 07:48:48 +0200 Subject: Merging upstream version 1.75.0+dfsg1. Signed-off-by: Daniel Baumann --- vendor/packed_simd/tests/endianness.rs | 268 +++++++++++++++++++++++++++++++++ 1 file changed, 268 insertions(+) create mode 100644 vendor/packed_simd/tests/endianness.rs (limited to 'vendor/packed_simd/tests') diff --git a/vendor/packed_simd/tests/endianness.rs b/vendor/packed_simd/tests/endianness.rs new file mode 100644 index 000000000..17a7796b1 --- /dev/null +++ b/vendor/packed_simd/tests/endianness.rs @@ -0,0 +1,268 @@ +#[cfg(target_arch = "wasm32")] +use wasm_bindgen_test::*; + +use packed_simd::*; +use std::{mem, slice}; + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_indexing() { + let v = i32x4::new(0, 1, 2, 3); + assert_eq!(v.extract(0), 0); + assert_eq!(v.extract(1), 1); + assert_eq!(v.extract(2), 2); + assert_eq!(v.extract(3), 3); +} + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_bitcasts() { + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let t: i16x8 = unsafe { mem::transmute(x) }; + let e: i16x8 = if cfg!(target_endian = "little") { + i16x8::new(256, 770, 1284, 1798, 2312, 2826, 3340, 3854) + } else { + i16x8::new(1, 515, 1029, 1543, 2057, 2571, 3085, 3599) + }; + assert_eq!(t, e); +} + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_casts() { + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let t: i16x16 = x.into(); // simd_cast + #[rustfmt::skip] + let e = i16x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + assert_eq!(t, e); +} + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_load_and_stores() { + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let mut y: [i16; 8] = [0; 8]; + x.write_to_slice_unaligned(unsafe { slice::from_raw_parts_mut(&mut y as *mut _ as *mut i8, 16) }); + + let e: [i16; 8] = if cfg!(target_endian = "little") { + [256, 770, 1284, 1798, 2312, 2826, 3340, 3854] + } else { + [1, 515, 1029, 1543, 2057, 2571, 3085, 3599] + }; + assert_eq!(y, e); + + let z = i8x16::from_slice_unaligned(unsafe { slice::from_raw_parts(&y as *const _ as *const i8, 16) }); + assert_eq!(z, x); +} + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_array_union() { + union A { + data: [f32; 4], + vec: f32x4, + } + let x: [f32; 4] = unsafe { A { vec: f32x4::new(0., 1., 2., 3.) }.data }; + // As all of these are integer values within the mantissa^1 range, it + // would be very unusual for them to actually fail to compare. + #[allow(clippy::float_cmp)] + { + assert_eq!(x[0], 0_f32); + assert_eq!(x[1], 1_f32); + assert_eq!(x[2], 2_f32); + assert_eq!(x[3], 3_f32); + } + let y: f32x4 = unsafe { A { data: [3., 2., 1., 0.] }.vec }; + assert_eq!(y, f32x4::new(3., 2., 1., 0.)); + + union B { + data: [i8; 16], + vec: i8x16, + } + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let x: [i8; 16] = unsafe { B { vec: x }.data }; + + for (i, v) in x.iter().enumerate() { + assert_eq!(i as i8, *v); + } + + #[rustfmt::skip] + let y = [ + 15, 14, 13, 12, 11, 19, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0 + ]; + #[rustfmt::skip] + let e = i8x16::new( + 15, 14, 13, 12, 11, 19, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0 + ); + let z = unsafe { B { data: y }.vec }; + assert_eq!(z, e); + + union C { + data: [i16; 8], + vec: i8x16, + } + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let x: [i16; 8] = unsafe { C { vec: x }.data }; + + let e: [i16; 8] = if cfg!(target_endian = "little") { + [256, 770, 1284, 1798, 2312, 2826, 3340, 3854] + } else { + [1, 515, 1029, 1543, 2057, 2571, 3085, 3599] + }; + assert_eq!(x, e); +} + +#[cfg_attr(not(target_arch = "wasm32"), test)] +#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] +fn endian_tuple_access() { + type F32x4T = (f32, f32, f32, f32); + union A { + data: F32x4T, + vec: f32x4, + } + let x: F32x4T = unsafe { A { vec: f32x4::new(0., 1., 2., 3.) }.data }; + // As all of these are integer values within the mantissa^1 range, it + // would be very unusual for them to actually fail to compare. + #[allow(clippy::float_cmp)] + { + assert_eq!(x.0, 0_f32); + assert_eq!(x.1, 1_f32); + assert_eq!(x.2, 2_f32); + assert_eq!(x.3, 3_f32); + } + let y: f32x4 = unsafe { A { data: (3., 2., 1., 0.) }.vec }; + assert_eq!(y, f32x4::new(3., 2., 1., 0.)); + + #[rustfmt::skip] + type I8x16T = (i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8); + union B { + data: I8x16T, + vec: i8x16, + } + + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let x: I8x16T = unsafe { B { vec: x }.data }; + + assert_eq!(x.0, 0); + assert_eq!(x.1, 1); + assert_eq!(x.2, 2); + assert_eq!(x.3, 3); + assert_eq!(x.4, 4); + assert_eq!(x.5, 5); + assert_eq!(x.6, 6); + assert_eq!(x.7, 7); + assert_eq!(x.8, 8); + assert_eq!(x.9, 9); + assert_eq!(x.10, 10); + assert_eq!(x.11, 11); + assert_eq!(x.12, 12); + assert_eq!(x.13, 13); + assert_eq!(x.14, 14); + assert_eq!(x.15, 15); + + #[rustfmt::skip] + let y = ( + 15, 14, 13, 12, 11, 10, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0 + ); + let z: i8x16 = unsafe { B { data: y }.vec }; + #[rustfmt::skip] + let e = i8x16::new( + 15, 14, 13, 12, 11, 10, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0 + ); + assert_eq!(e, z); + + #[rustfmt::skip] + type I16x8T = (i16, i16, i16, i16, i16, i16, i16, i16); + union C { + data: I16x8T, + vec: i8x16, + } + + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let x: I16x8T = unsafe { C { vec: x }.data }; + + let e: [i16; 8] = if cfg!(target_endian = "little") { + [256, 770, 1284, 1798, 2312, 2826, 3340, 3854] + } else { + [1, 515, 1029, 1543, 2057, 2571, 3085, 3599] + }; + assert_eq!(x.0, e[0]); + assert_eq!(x.1, e[1]); + assert_eq!(x.2, e[2]); + assert_eq!(x.3, e[3]); + assert_eq!(x.4, e[4]); + assert_eq!(x.5, e[5]); + assert_eq!(x.6, e[6]); + assert_eq!(x.7, e[7]); + + #[rustfmt::skip] + #[repr(C)] + #[derive(Copy ,Clone)] + pub struct Tup(pub i8, pub i8, pub i16, pub i8, pub i8, pub i16, + pub i8, pub i8, pub i16, pub i8, pub i8, pub i16); + + union D { + data: Tup, + vec: i8x16, + } + + #[rustfmt::skip] + let x = i8x16::new( + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + ); + let x: Tup = unsafe { D { vec: x }.data }; + + let e: [i16; 12] = if cfg!(target_endian = "little") { + [0, 1, 770, 4, 5, 1798, 8, 9, 2826, 12, 13, 3854] + } else { + [0, 1, 515, 4, 5, 1543, 8, 9, 2571, 12, 13, 3599] + }; + assert_eq!(x.0 as i16, e[0]); + assert_eq!(x.1 as i16, e[1]); + assert_eq!(x.2 as i16, e[2]); + assert_eq!(x.3 as i16, e[3]); + assert_eq!(x.4 as i16, e[4]); + assert_eq!(x.5 as i16, e[5]); + assert_eq!(x.6 as i16, e[6]); + assert_eq!(x.7 as i16, e[7]); + assert_eq!(x.8 as i16, e[8]); + assert_eq!(x.9 as i16, e[9]); + assert_eq!(x.10 as i16, e[10]); + assert_eq!(x.11 as i16, e[11]); +} -- cgit v1.2.3