bjoernager/rust
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Split PAuth target feature

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This commit is contained in:
Adam Gemmell 2022-01-31 13:04:27 +00:00
parent 56cd04af5c
commit d39a6377e9
9 changed files with 148 additions and 15 deletions
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15
compiler/rustc_codegen_ssa/src/target_features.rs
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@ -74,8 +74,10 @@ const AARCH64_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("ssbs", Some(sym::aarch64_target_feature)),
// FEAT_SB
("sb", Some(sym::aarch64_target_feature)),
// FEAT_PAUTH
("pauth", Some(sym::aarch64_target_feature)),
// FEAT_PAUTH (address authentication)
("paca", Some(sym::aarch64_target_feature)),
// FEAT_PAUTH (generic authentication)
("pacg", Some(sym::aarch64_target_feature)),
// FEAT_DPB
("dpb", Some(sym::aarch64_target_feature)),
// FEAT_DPB2
@ -137,6 +139,8 @@ const AARCH64_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("v8.7a", Some(sym::aarch64_target_feature)),
];
const AARCH64_TIED_FEATURES: &[&[&str]] = &[&["paca", "pacg"]];
const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("adx", Some(sym::adx_target_feature)),
("aes", None),
@ -256,6 +260,13 @@ pub fn supported_target_features(sess: &Session) -> &'static [(&'static str, Opt
}
}
pub fn tied_target_features(sess: &Session) -> &'static [&'static [&'static str]] {
match &*sess.target.arch {
"aarch64" => AARCH64_TIED_FEATURES,
_ => &[],
}
}
pub(crate) fn provide(providers: &mut Providers) {
providers.supported_target_features = |tcx, cnum| {
assert_eq!(cnum, LOCAL_CRATE);