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Add -Zfixed-x18

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Signed-off-by: Alice Ryhl <aliceryhl@google.com>
This commit is contained in:
Alice Ryhl 2024-05-03 14:32:01 +02:00
parent 79734f1db8
commit 40f0172c6a
5 changed files with 62 additions and 0 deletions
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5
compiler/rustc_codegen_llvm/src/llvm_util.rs
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@ -615,6 +615,11 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str
.flatten();
features.extend(feats);
// -Zfixed-x18
if sess.opts.unstable_opts.fixed_x18 {
features.push("+reserve-x18".into());
}
if diagnostics && let Some(f) = check_tied_features(sess, &featsmap) {
sess.dcx().emit_err(TargetFeatureDisableOrEnable {
features: f,