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dfc5dfc8ef
Add detection for various aarch64 CPU features already supported by LLVM and Linux. This commit adds feature detection for the following features: - FEAT_CSSC - FEAT_ECV - FEAT_FAMINMAX - FEAT_FLAGM2 - FEAT_FP8 - FEAT_FP8DOT2 - FEAT_FP8DOT4 - FEAT_FP8FMA - FEAT_HBC - FEAT_LSE128 - FEAT_LUT - FEAT_MOPS - FEAT_LRCPC3 - FEAT_SVE_B16B16 - FEAT_SVE2p1 - FEAT_WFxT It also adds feature detection for FEAT_FPMR. It is somewhat of a special case because FPMR only exists as a feature in LLVM 18, it has been removed from the LLVM upstream. On that account the intention is for it to be detectable at runtime through stdarch but not have a corresponding compile-time Rust target feature. Linux features: https://github.com/torvalds/linux/blob/master/arch/arm64/include/uapi/asm/hwcap.h LLVM features: llvm-project/llvm/lib/Target/AArch64/AArch64.td
69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
#![allow(internal_features)]
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#![cfg_attr(
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any(
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target_arch = "arm",
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target_arch = "aarch64",
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target_arch = "arm64ec",
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target_arch = "x86",
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target_arch = "x86_64",
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target_arch = "powerpc",
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target_arch = "powerpc64"
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),
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feature(stdarch_internal)
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)]
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#![cfg_attr(target_arch = "arm", feature(stdarch_arm_feature_detection))]
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#![cfg_attr(target_arch = "aarch64", feature(stdarch_aarch64_feature_detection))]
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#![cfg_attr(target_arch = "powerpc", feature(stdarch_powerpc_feature_detection))]
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#![cfg_attr(target_arch = "powerpc64", feature(stdarch_powerpc_feature_detection))]
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#![allow(clippy::unwrap_used, clippy::use_debug, clippy::print_stdout)]
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#[cfg(any(
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target_arch = "arm",
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target_arch = "aarch64",
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target_arch = "arm64ec",
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target_arch = "x86",
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target_arch = "x86_64",
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target_arch = "powerpc",
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target_arch = "powerpc64"
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))]
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#[macro_use]
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extern crate std_detect;
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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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let _ = is_arm_feature_detected!("neon");
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let _ = is_arm_feature_detected!("neon",);
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}
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#[test]
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#[cfg(all(
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target_arch = "aarch64",
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any(target_os = "linux", target_os = "android")
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))]
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fn aarch64_linux() {
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let _ = is_aarch64_feature_detected!("fp");
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let _ = is_aarch64_feature_detected!("fp",);
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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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let _ = is_powerpc_feature_detected!("altivec");
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let _ = is_powerpc_feature_detected!("altivec",);
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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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let _ = is_powerpc64_feature_detected!("altivec");
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let _ = is_powerpc64_feature_detected!("altivec",);
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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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let _ = is_x86_feature_detected!("sse");
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let _ = is_x86_feature_detected!("sse",);
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}
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