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generalize 'forbidden feature' concept so that even (un)stable feature can be invalid to toggle

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Also rename some things for extra clarity
This commit is contained in:
Ralf Jung 2024-11-16 10:00:16 +01:00
parent 1f3bf231e1
commit 2d887a5c5c
13 changed files with 468 additions and 401 deletions
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6
compiler/rustc_codegen_cranelift/src/lib.rs
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@ -175,7 +175,11 @@ impl CodegenBackend for CraneliftCodegenBackend {
}
}
fn target_features(&self, sess: &Session, _allow_unstable: bool) -> Vec<rustc_span::Symbol> {
fn target_features_cfg(
&self,
sess: &Session,
_allow_unstable: bool,
) -> Vec<rustc_span::Symbol> {
// FIXME return the actually used target features. this is necessary for #[cfg(target_feature)]
if sess.target.arch == "x86_64" && sess.target.os != "none" {
// x86_64 mandates SSE2 support