bjoernager/rust
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Warn when using LTO

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bjorn3 2020-01-17 20:33:27 +01:00
parent aa5c49cf2f
commit a3f378754b
1 changed files with 5 additions and 1 deletions
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6
src/lib.rs
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@ -162,7 +162,11 @@ impl<'clif, 'tcx, B: Backend + 'static> CodegenCx<'clif, 'tcx, B> {
struct CraneliftCodegenBackend;
impl CodegenBackend for CraneliftCodegenBackend {
fn init(&self, _sess: &Session) {}
fn init(&self, sess: &Session) {
if sess.lto() != rustc_session::config::Lto::No {
sess.warn("LTO is not supported. You may get a linker error.");
}
}
fn metadata_loader(&self) -> Box<dyn MetadataLoader + Sync> {
Box::new(crate::metadata::CraneliftMetadataLoader)