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b807d5970b
Arm's FEAT_FP and Feat_AdvSIMD describe the same thing on AArch64: The Neon unit, which handles both floating point and SIMD instructions. Moreover, a configuration for AArch64 must include both or neither. Arm says "entirely proprietary" toolchains may omit floating point: https://developer.arm.com/documentation/102374/0101/Data-processing---floating-point In the Programmer's Guide for Armv8-A, Arm says AArch64 can have both FP and Neon or neither in custom implementations: https://developer.arm.com/documentation/den0024/a/AArch64-Floating-point-and-NEON In "Bare metal boot code for Armv8-A", enabling Neon and FP is just disabling the same trap flag: https://developer.arm.com/documentation/dai0527/a In an unlikely future where "Neon and FP" become unrelated, we can add "[+-]fp" as its own feature flag. Until then, we can simplify programming with Rust on AArch64 by folding both into "[+-]neon", which is valid as it supersets both. "[+-]neon" is retained for niche uses such as firmware, kernels, "I just hate floats", and so on.
154 lines
8.2 KiB
Rust
154 lines
8.2 KiB
Rust
//! These tests just check that the macros are available in libstd.
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#![cfg_attr(
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any(
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all(target_arch = "arm", any(target_os = "linux", target_os = "android")),
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all(bootstrap, target_arch = "aarch64", any(target_os = "linux", target_os = "android")),
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all(target_arch = "powerpc", target_os = "linux"),
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all(target_arch = "powerpc64", target_os = "linux"),
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),
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feature(stdsimd)
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)]
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#[test]
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#[cfg(all(target_arch = "arm", any(target_os = "linux", target_os = "android")))]
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fn arm_linux() {
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use std::arch::is_arm_feature_detected;
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println!("neon: {}", is_arm_feature_detected!("neon"));
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println!("pmull: {}", is_arm_feature_detected!("pmull"));
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println!("crypto: {}", is_arm_feature_detected!("crypto"));
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println!("crc: {}", is_arm_feature_detected!("crc"));
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println!("aes: {}", is_arm_feature_detected!("aes"));
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println!("sha2: {}", is_arm_feature_detected!("sha2"));
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}
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#[test]
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#[cfg(all(target_arch = "aarch64", any(target_os = "linux", target_os = "android")))]
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fn aarch64_linux() {
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use std::arch::is_aarch64_feature_detected;
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println!("neon: {}", is_aarch64_feature_detected!("neon"));
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println!("asimd: {}", is_aarch64_feature_detected!("asimd"));
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println!("pmull: {}", is_aarch64_feature_detected!("pmull"));
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println!("fp16: {}", is_aarch64_feature_detected!("fp16"));
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println!("sve: {}", is_aarch64_feature_detected!("sve"));
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println!("crc: {}", is_aarch64_feature_detected!("crc"));
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println!("lse: {}", is_aarch64_feature_detected!("lse"));
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println!("lse2: {}", is_aarch64_feature_detected!("lse2"));
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println!("rdm: {}", is_aarch64_feature_detected!("rdm"));
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println!("rcpc: {}", is_aarch64_feature_detected!("rcpc"));
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println!("rcpc2: {}", is_aarch64_feature_detected!("rcpc2"));
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println!("dotprod: {}", is_aarch64_feature_detected!("dotprod"));
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println!("tme: {}", is_aarch64_feature_detected!("tme"));
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println!("fhm: {}", is_aarch64_feature_detected!("fhm"));
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println!("dit: {}", is_aarch64_feature_detected!("dit"));
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println!("flagm: {}", is_aarch64_feature_detected!("flagm"));
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println!("ssbs: {}", is_aarch64_feature_detected!("ssbs"));
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println!("sb: {}", is_aarch64_feature_detected!("sb"));
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println!("paca: {}", is_aarch64_feature_detected!("paca"));
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println!("pacg: {}", is_aarch64_feature_detected!("pacg"));
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println!("dpb: {}", is_aarch64_feature_detected!("dpb"));
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println!("dpb2: {}", is_aarch64_feature_detected!("dpb2"));
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println!("sve2: {}", is_aarch64_feature_detected!("sve2"));
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println!("sve2-aes: {}", is_aarch64_feature_detected!("sve2-aes"));
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println!("sve2-sm4: {}", is_aarch64_feature_detected!("sve2-sm4"));
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println!("sve2-sha3: {}", is_aarch64_feature_detected!("sve2-sha3"));
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println!("sve2-bitperm: {}", is_aarch64_feature_detected!("sve2-bitperm"));
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println!("frintts: {}", is_aarch64_feature_detected!("frintts"));
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println!("i8mm: {}", is_aarch64_feature_detected!("i8mm"));
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println!("f32mm: {}", is_aarch64_feature_detected!("f32mm"));
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println!("f64mm: {}", is_aarch64_feature_detected!("f64mm"));
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println!("bf16: {}", is_aarch64_feature_detected!("bf16"));
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println!("rand: {}", is_aarch64_feature_detected!("rand"));
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println!("bti: {}", is_aarch64_feature_detected!("bti"));
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println!("mte: {}", is_aarch64_feature_detected!("mte"));
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println!("jsconv: {}", is_aarch64_feature_detected!("jsconv"));
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println!("fcma: {}", is_aarch64_feature_detected!("fcma"));
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println!("aes: {}", is_aarch64_feature_detected!("aes"));
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println!("sha2: {}", is_aarch64_feature_detected!("sha2"));
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println!("sha3: {}", is_aarch64_feature_detected!("sha3"));
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println!("sm4: {}", is_aarch64_feature_detected!("sm4"));
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}
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#[test]
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#[cfg(all(target_arch = "powerpc", target_os = "linux"))]
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fn powerpc_linux() {
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use std::arch::is_powerpc_feature_detected;
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println!("altivec: {}", is_powerpc_feature_detected!("altivec"));
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println!("vsx: {}", is_powerpc_feature_detected!("vsx"));
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println!("power8: {}", is_powerpc_feature_detected!("power8"));
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}
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#[test]
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#[cfg(all(target_arch = "powerpc64", target_os = "linux"))]
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fn powerpc64_linux() {
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use std::arch::is_powerpc64_feature_detected;
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println!("altivec: {}", is_powerpc64_feature_detected!("altivec"));
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println!("vsx: {}", is_powerpc64_feature_detected!("vsx"));
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println!("power8: {}", is_powerpc64_feature_detected!("power8"));
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}
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#[test]
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#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
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fn x86_all() {
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use std::arch::is_x86_feature_detected;
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// the below is the set of features we can test at runtime, but don't actually
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// use to gate anything and are thus not part of the X86_ALLOWED_FEATURES list
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println!("abm: {:?}", is_x86_feature_detected!("abm")); // this is a synonym for lzcnt but we test it anyways
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println!("mmx: {:?}", is_x86_feature_detected!("mmx"));
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println!("tsc: {:?}", is_x86_feature_detected!("tsc"));
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// the below is in alphabetical order and matches
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// the order of X86_ALLOWED_FEATURES in rustc_codegen_ssa's target_features.rs
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println!("adx: {:?}", is_x86_feature_detected!("adx"));
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println!("aes: {:?}", is_x86_feature_detected!("aes"));
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println!("avx: {:?}", is_x86_feature_detected!("avx"));
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println!("avx2: {:?}", is_x86_feature_detected!("avx2"));
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println!("avx512bf16: {:?}", is_x86_feature_detected!("avx512bf16"));
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println!("avx512bitalg: {:?}", is_x86_feature_detected!("avx512bitalg"));
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println!("avx512bw: {:?}", is_x86_feature_detected!("avx512bw"));
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println!("avx512cd: {:?}", is_x86_feature_detected!("avx512cd"));
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println!("avx512dq: {:?}", is_x86_feature_detected!("avx512dq"));
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println!("avx512er: {:?}", is_x86_feature_detected!("avx512er"));
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println!("avx512f: {:?}", is_x86_feature_detected!("avx512f"));
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println!("avx512gfni: {:?}", is_x86_feature_detected!("avx512gfni"));
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println!("avx512ifma: {:?}", is_x86_feature_detected!("avx512ifma"));
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println!("avx512pf: {:?}", is_x86_feature_detected!("avx512pf"));
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println!("avx512vaes: {:?}", is_x86_feature_detected!("avx512vaes"));
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println!("avx512vbmi: {:?}", is_x86_feature_detected!("avx512vbmi"));
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println!("avx512vbmi2: {:?}", is_x86_feature_detected!("avx512vbmi2"));
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println!("avx512vl: {:?}", is_x86_feature_detected!("avx512vl"));
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println!("avx512vnni: {:?}", is_x86_feature_detected!("avx512vnni"));
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println!("avx512vp2intersect: {:?}", is_x86_feature_detected!("avx512vp2intersect"));
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println!("avx512vpclmulqdq: {:?}", is_x86_feature_detected!("avx512vpclmulqdq"));
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println!("avx512vpopcntdq: {:?}", is_x86_feature_detected!("avx512vpopcntdq"));
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println!("bmi1: {:?}", is_x86_feature_detected!("bmi1"));
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println!("bmi2: {:?}", is_x86_feature_detected!("bmi2"));
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println!("cmpxchg16b: {:?}", is_x86_feature_detected!("cmpxchg16b"));
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println!("f16c: {:?}", is_x86_feature_detected!("f16c"));
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println!("fma: {:?}", is_x86_feature_detected!("fma"));
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println!("fxsr: {:?}", is_x86_feature_detected!("fxsr"));
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println!("lzcnt: {:?}", is_x86_feature_detected!("lzcnt"));
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//println!("movbe: {:?}", is_x86_feature_detected!("movbe")); // movbe is unsupported as a target feature
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println!("pclmulqdq: {:?}", is_x86_feature_detected!("pclmulqdq"));
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println!("popcnt: {:?}", is_x86_feature_detected!("popcnt"));
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println!("rdrand: {:?}", is_x86_feature_detected!("rdrand"));
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println!("rdseed: {:?}", is_x86_feature_detected!("rdseed"));
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println!("rtm: {:?}", is_x86_feature_detected!("rtm"));
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println!("sha: {:?}", is_x86_feature_detected!("sha"));
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println!("sse: {:?}", is_x86_feature_detected!("sse"));
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println!("sse2: {:?}", is_x86_feature_detected!("sse2"));
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println!("sse3: {:?}", is_x86_feature_detected!("sse3"));
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println!("sse4.1: {:?}", is_x86_feature_detected!("sse4.1"));
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println!("sse4.2: {:?}", is_x86_feature_detected!("sse4.2"));
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println!("sse4a: {:?}", is_x86_feature_detected!("sse4a"));
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println!("ssse3: {:?}", is_x86_feature_detected!("ssse3"));
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println!("tbm: {:?}", is_x86_feature_detected!("tbm"));
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println!("xsave: {:?}", is_x86_feature_detected!("xsave"));
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println!("xsavec: {:?}", is_x86_feature_detected!("xsavec"));
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println!("xsaveopt: {:?}", is_x86_feature_detected!("xsaveopt"));
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println!("xsaves: {:?}", is_x86_feature_detected!("xsaves"));
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}
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