Auto merge of #104889 - GuillaumeGomez:fix-impl-block-in-const-expr, r=notriddle

[rust.git] / compiler / rustc_mir_transform / src / normalize_array_len.rs

diff --git a/compiler/rustc_mir_transform/src/normalize_array_len.rs b/compiler/rustc_mir_transform/src/normalize_array_len.rs
index a159e61717823e5847d01641fc9f9762bae81139..1708b287e56f25bca285136fca3a92649a0bafd6 100644 (file)
--- a/compiler/rustc_mir_transform/src/normalize_array_len.rs
+++ b/compiler/rustc_mir_transform/src/normalize_array_len.rs
@@ -16,7 +16,8 @@
 
 impl<'tcx> MirPass<'tcx> for NormalizeArrayLen {
     fn is_enabled(&self, sess: &rustc_session::Session) -> bool {
-        sess.mir_opt_level() >= 4
+        // See #105929
+        sess.mir_opt_level() >= 4 && sess.opts.unstable_opts.unsound_mir_opts
     }
 
     fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {