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-rw-r--r--compiler/rustc_mir_transform/src/jump_threading.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs
index 7a70ed5cb7f..78ba166ba43 100644
--- a/compiler/rustc_mir_transform/src/jump_threading.rs
+++ b/compiler/rustc_mir_transform/src/jump_threading.rs
@@ -60,7 +60,7 @@ const MAX_PLACES: usize = 100;
 
 impl<'tcx> MirPass<'tcx> for JumpThreading {
     fn is_enabled(&self, sess: &rustc_session::Session) -> bool {
-        sess.mir_opt_level() >= 4
+        sess.mir_opt_level() >= 2
     }
 
     #[instrument(skip_all level = "debug")]