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also skip abi_required_features check in rustdoc

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This commit is contained in:
Ralf Jung 2025-02-28 16:56:36 +01:00
parent dc04c0ca48
commit 4c939db0e7
2 changed files with 24 additions and 9 deletions
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17
compiler/rustc_codegen_ssa/src/target_features.rs
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@ -87,12 +87,17 @@ pub(crate) fn from_target_feature_attr(
// But ensure the ABI does not forbid enabling this.
// Here we do assume that LLVM doesn't add even more implied features
// we don't know about, at least no features that would have ABI effects!
if abi_feature_constraints.incompatible.contains(&name.as_str()) {
tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr {
span: item.span(),
feature: name.as_str(),
reason: "this feature is incompatible with the target ABI",
});
// We skip this logic in rustdoc, where we want to allow all target features of
// all targets, so we can't check their ABI compatibility and anyway we are not
// generating code so "it's fine".
if !tcx.sess.opts.actually_rustdoc {
if abi_feature_constraints.incompatible.contains(&name.as_str()) {
tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr {
span: item.span(),
feature: name.as_str(),
reason: "this feature is incompatible with the target ABI",
});
}
}
target_features.push(TargetFeature { name, implied: name != feature_sym })
}