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std_detect on AArch64 Darwin: Detect FEAT_SVE_B16B16

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This is now exposed via `sysctl` as of macOS "Tahoe" 26.4 (or possibly earlier).
This commit is contained in:
Laine Taffin Altman
2026-03-27 17:24:27 -07:00
committed by GitHub
parent fda6d37bb8
commit 1f17857123
1 changed files with 2 additions and 0 deletions
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library/std_detect/src/detect/os/darwin/aarch64.rs
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@@ -81,6 +81,7 @@ pub(crate) fn detect_features() -> cache::Initializer {
let sme_f64f64 = _sysctlbyname(c"hw.optional.arm.FEAT_SME_F64F64"); let sme_f64f64 = _sysctlbyname(c"hw.optional.arm.FEAT_SME_F64F64");
let sme_i16i64 = _sysctlbyname(c"hw.optional.arm.FEAT_SME_I16I64"); let sme_i16i64 = _sysctlbyname(c"hw.optional.arm.FEAT_SME_I16I64");
let ssbs = _sysctlbyname(c"hw.optional.arm.FEAT_SSBS"); let ssbs = _sysctlbyname(c"hw.optional.arm.FEAT_SSBS");
let sve_b16b16 = _sysctlbyname(c"hw.optional.arm.FEAT_SVE_B16B16");
let wfxt = _sysctlbyname(c"hw.optional.arm.FEAT_WFxT"); let wfxt = _sysctlbyname(c"hw.optional.arm.FEAT_WFxT");
// The following features are not exposed by `is_aarch64_feature_detected`, // The following features are not exposed by `is_aarch64_feature_detected`,
@@ -160,6 +161,7 @@ pub(crate) fn detect_features() -> cache::Initializer {
enable_feature(Feature::sme_f64f64, sme_f64f64); enable_feature(Feature::sme_f64f64, sme_f64f64);
enable_feature(Feature::sme_i16i64, sme_i16i64); enable_feature(Feature::sme_i16i64, sme_i16i64);
enable_feature(Feature::ssbs, ssbs); enable_feature(Feature::ssbs, ssbs);
enable_feature(Feature::sve_b16b16, sve_b16b16);
enable_feature(Feature::wfxt, wfxt); enable_feature(Feature::wfxt, wfxt);
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