bjoernager/rust
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add dedicated type for ABI target feature constraints

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This commit is contained in:
Ralf Jung 2025-01-05 10:34:33 +01:00
parent 43ede97ebf
commit 2e64b5352b
5 changed files with 45 additions and 31 deletions
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4
compiler/rustc_codegen_ssa/src/target_features.rs
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@ -32,7 +32,7 @@ pub(crate) fn from_target_feature_attr(
.emit();
};
let rust_features = tcx.features();
let (_abi_enable, abi_disable) = tcx.sess.target.abi_required_features();
let abi_feature_constraints = tcx.sess.target.abi_required_features();
for item in list {
// Only `enable = ...` is accepted in the meta-item list.
if !item.has_name(sym::enable) {
@ -87,7 +87,7 @@ 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_disable.contains(&name.as_str()) {
if abi_feature_constraints.incompatible.contains(&name.as_str()) {
tcx.dcx().emit_err(errors::ForbiddenTargetFeatureAttr {
span: item.span(),
feature: name.as_str(),