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Auto merge of #90271 - adamgemmell:dev/feat-detect-stabilise, r=Amanieu

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Stabilise `is_aarch64_feature_detected!` under `simd_aarch64` feature

Initial implementation, looking for feedback on the approach here. https://github.com/rust-lang/rust/issues/86941

One point I noticed was that I haven't seen different "since" versions for the same feature - does this mean that other features can't be added to to the `simd_aarch64` feature once this is in stable? If so it might need a more specific name.

r? `@Amanieu`
This commit is contained in:
bors 2022-02-11 20:41:51 +00:00
parent 6499c5e7fc 93b5bfbc48
commit e789f3a3a3
3 changed files with 8 additions and 7 deletions
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7
library/std/src/lib.rs
View file

@ -546,13 +546,14 @@ pub mod arch {
#[doc(no_inline)] // Note (#82861): required for correct documentation
pub use core::arch::*;
#[stable(feature = "simd_aarch64", since = "1.60.0")]
pub use std_detect::is_aarch64_feature_detected;
#[stable(feature = "simd_x86", since = "1.27.0")]
pub use std_detect::is_x86_feature_detected;
#[unstable(feature = "stdsimd", issue = "48556")]
pub use std_detect::{
is_aarch64_feature_detected, is_arm_feature_detected, is_mips64_feature_detected,
is_mips_feature_detected, is_powerpc64_feature_detected, is_powerpc_feature_detected,
is_riscv_feature_detected,
is_arm_feature_detected, is_mips64_feature_detected, is_mips_feature_detected,
is_powerpc64_feature_detected, is_powerpc_feature_detected, is_riscv_feature_detected,
};
}

6
library/std/tests/run-time-detect.rs
View file

@ -3,10 +3,9 @@
#![cfg_attr(
any(
all(target_arch = "arm", any(target_os = "linux", target_os = "android")),
all(target_arch = "aarch64", any(target_os = "linux", target_os = "android")),
all(bootstrap, target_arch = "aarch64", any(target_os = "linux", target_os = "android")),
all(target_arch = "powerpc", target_os = "linux"),
all(target_arch = "powerpc64", target_os = "linux"),
any(target_arch = "x86", target_arch = "x86_64"),
),
feature(stdsimd)
)]
@ -46,7 +45,8 @@ fn aarch64_linux() {
println!("flagm: {}", is_aarch64_feature_detected!("flagm"));
println!("ssbs: {}", is_aarch64_feature_detected!("ssbs"));
println!("sb: {}", is_aarch64_feature_detected!("sb"));
println!("pauth: {}", is_aarch64_feature_detected!("pauth"));
println!("paca: {}", is_aarch64_feature_detected!("paca"));
println!("pacg: {}", is_aarch64_feature_detected!("pacg"));
println!("dpb: {}", is_aarch64_feature_detected!("dpb"));
println!("dpb2: {}", is_aarch64_feature_detected!("dpb2"));
println!("sve2: {}", is_aarch64_feature_detected!("sve2"));

2
library/stdarch

@ -1 +1 @@
Subproject commit eaee02ffdf5d820729ccdf2f95fa08b08c7d24d2
Subproject commit 863d31b8e1314e15d124384e5eaa9ab21e12bd79