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-rw-r--r--src/optimize/stack2reg.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/optimize/stack2reg.rs b/src/optimize/stack2reg.rs
index 757e608d733..b21f838111c 100644
--- a/src/optimize/stack2reg.rs
+++ b/src/optimize/stack2reg.rs
@@ -162,6 +162,7 @@ impl<'a> OptimizeContext<'a> {
 
 pub(super) fn optimize_function(
     ctx: &mut Context,
+    #[cfg_attr(not(debug_assertions), allow(unused_variables))]
     clif_comments: &mut crate::pretty_clif::CommentWriter,
 ) {
     combine_stack_addr_with_load_store(&mut ctx.func);