|
| 1 | +// Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| 2 | +// file at the top-level directory of this distribution and at |
| 3 | +// http://rust-lang.org/COPYRIGHT. |
| 4 | +// |
| 5 | +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| 6 | +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| 7 | +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| 8 | +// option. This file may not be copied, modified, or distributed |
| 9 | +// except according to those terms. |
| 10 | + |
| 11 | +#![feature(repr_simd, target_feature, cfg_target_feature)] |
| 12 | + |
| 13 | +use std::process::{Command, ExitStatus}; |
| 14 | +use std::env; |
| 15 | + |
| 16 | +fn main() { |
| 17 | + if let Some(level) = env::args().nth(1) { |
| 18 | + return test::main(&level) |
| 19 | + } |
| 20 | + |
| 21 | + let me = env::current_exe().unwrap(); |
| 22 | + for level in ["sse", "avx", "avx512"].iter() { |
| 23 | + let status = Command::new(&me).arg(level).status().unwrap(); |
| 24 | + if status.success() { |
| 25 | + println!("success with {}", level); |
| 26 | + continue |
| 27 | + } |
| 28 | + |
| 29 | + // We don't actually know if our computer has the requisite target features |
| 30 | + // for the test below. Testing for that will get added to libstd later so |
| 31 | + // for now just asume sigill means this is a machine that can't run this test. |
| 32 | + if is_sigill(status) { |
| 33 | + println!("sigill with {}, assuming spurious", level); |
| 34 | + continue |
| 35 | + } |
| 36 | + panic!("invalid status at {}: {}", level, status); |
| 37 | + } |
| 38 | +} |
| 39 | + |
| 40 | +#[cfg(unix)] |
| 41 | +fn is_sigill(status: ExitStatus) -> bool { |
| 42 | + use std::os::unix::prelude::*; |
| 43 | + status.signal() == Some(4) |
| 44 | +} |
| 45 | + |
| 46 | +#[cfg(any(target_arch = "x86", target_arch = "x86_64"))] |
| 47 | +#[allow(bad_style)] |
| 48 | +mod test { |
| 49 | + // An SSE type |
| 50 | + #[repr(simd)] |
| 51 | + #[derive(PartialEq, Debug, Clone, Copy)] |
| 52 | + struct __m128i(u64, u64); |
| 53 | + |
| 54 | + // An AVX type |
| 55 | + #[repr(simd)] |
| 56 | + #[derive(PartialEq, Debug, Clone, Copy)] |
| 57 | + struct __m256i(u64, u64, u64, u64); |
| 58 | + |
| 59 | + // An AVX-512 type |
| 60 | + #[repr(simd)] |
| 61 | + #[derive(PartialEq, Debug, Clone, Copy)] |
| 62 | + struct __m512i(u64, u64, u64, u64, u64, u64, u64, u64); |
| 63 | + |
| 64 | + pub fn main(level: &str) { |
| 65 | + unsafe { |
| 66 | + main_normal(level); |
| 67 | + main_sse(level); |
| 68 | + if level == "sse" { |
| 69 | + return |
| 70 | + } |
| 71 | + main_avx(level); |
| 72 | + if level == "avx" { |
| 73 | + return |
| 74 | + } |
| 75 | + main_avx512(level); |
| 76 | + } |
| 77 | + } |
| 78 | + |
| 79 | + macro_rules! mains { |
| 80 | + ($( |
| 81 | + $(#[$attr:meta])* |
| 82 | + unsafe fn $main:ident(level: &str) { |
| 83 | + ... |
| 84 | + } |
| 85 | + )*) => ($( |
| 86 | + $(#[$attr])* |
| 87 | + unsafe fn $main(level: &str) { |
| 88 | + let m128 = __m128i(1, 2); |
| 89 | + let m256 = __m256i(3, 4, 5, 6); |
| 90 | + let m512 = __m512i(7, 8, 9, 10, 11, 12, 13, 14); |
| 91 | + assert_eq!(id_sse_128(m128), m128); |
| 92 | + assert_eq!(id_sse_256(m256), m256); |
| 93 | + assert_eq!(id_sse_512(m512), m512); |
| 94 | + |
| 95 | + if level == "sse" { |
| 96 | + return |
| 97 | + } |
| 98 | + assert_eq!(id_avx_128(m128), m128); |
| 99 | + assert_eq!(id_avx_256(m256), m256); |
| 100 | + assert_eq!(id_avx_512(m512), m512); |
| 101 | + |
| 102 | + if level == "avx" { |
| 103 | + return |
| 104 | + } |
| 105 | + assert_eq!(id_avx512_128(m128), m128); |
| 106 | + assert_eq!(id_avx512_256(m256), m256); |
| 107 | + assert_eq!(id_avx512_512(m512), m512); |
| 108 | + } |
| 109 | + )*) |
| 110 | + } |
| 111 | + |
| 112 | + mains! { |
| 113 | + unsafe fn main_normal(level: &str) { ... } |
| 114 | + #[target_feature(enable = "sse2")] |
| 115 | + unsafe fn main_sse(level: &str) { ... } |
| 116 | + #[target_feature(enable = "avx")] |
| 117 | + unsafe fn main_avx(level: &str) { ... } |
| 118 | + #[target_feature(enable = "avx512bw")] |
| 119 | + unsafe fn main_avx512(level: &str) { ... } |
| 120 | + } |
| 121 | + |
| 122 | + |
| 123 | + #[target_feature(enable = "sse2")] |
| 124 | + unsafe fn id_sse_128(a: __m128i) -> __m128i { |
| 125 | + assert_eq!(a, __m128i(1, 2)); |
| 126 | + a.clone() |
| 127 | + } |
| 128 | + |
| 129 | + #[target_feature(enable = "sse2")] |
| 130 | + unsafe fn id_sse_256(a: __m256i) -> __m256i { |
| 131 | + assert_eq!(a, __m256i(3, 4, 5, 6)); |
| 132 | + a.clone() |
| 133 | + } |
| 134 | + |
| 135 | + #[target_feature(enable = "sse2")] |
| 136 | + unsafe fn id_sse_512(a: __m512i) -> __m512i { |
| 137 | + assert_eq!(a, __m512i(7, 8, 9, 10, 11, 12, 13, 14)); |
| 138 | + a.clone() |
| 139 | + } |
| 140 | + |
| 141 | + #[target_feature(enable = "avx")] |
| 142 | + unsafe fn id_avx_128(a: __m128i) -> __m128i { |
| 143 | + assert_eq!(a, __m128i(1, 2)); |
| 144 | + a.clone() |
| 145 | + } |
| 146 | + |
| 147 | + #[target_feature(enable = "avx")] |
| 148 | + unsafe fn id_avx_256(a: __m256i) -> __m256i { |
| 149 | + assert_eq!(a, __m256i(3, 4, 5, 6)); |
| 150 | + a.clone() |
| 151 | + } |
| 152 | + |
| 153 | + #[target_feature(enable = "avx")] |
| 154 | + unsafe fn id_avx_512(a: __m512i) -> __m512i { |
| 155 | + assert_eq!(a, __m512i(7, 8, 9, 10, 11, 12, 13, 14)); |
| 156 | + a.clone() |
| 157 | + } |
| 158 | + |
| 159 | + #[target_feature(enable = "avx512bw")] |
| 160 | + unsafe fn id_avx512_128(a: __m128i) -> __m128i { |
| 161 | + assert_eq!(a, __m128i(1, 2)); |
| 162 | + a.clone() |
| 163 | + } |
| 164 | + |
| 165 | + #[target_feature(enable = "avx512bw")] |
| 166 | + unsafe fn id_avx512_256(a: __m256i) -> __m256i { |
| 167 | + assert_eq!(a, __m256i(3, 4, 5, 6)); |
| 168 | + a.clone() |
| 169 | + } |
| 170 | + |
| 171 | + #[target_feature(enable = "avx512bw")] |
| 172 | + unsafe fn id_avx512_512(a: __m512i) -> __m512i { |
| 173 | + assert_eq!(a, __m512i(7, 8, 9, 10, 11, 12, 13, 14)); |
| 174 | + a.clone() |
| 175 | + } |
| 176 | +} |
| 177 | + |
| 178 | +#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] |
| 179 | +mod test { |
| 180 | + pub fn main(level: &str) {} |
| 181 | +} |
0 commit comments