diff --git a/tests/codegen/swap-small-types.rs b/tests/codegen/swap-small-types.rs
index ffa573c9a43a..7aa613ae9c22 100644
--- a/tests/codegen/swap-small-types.rs
+++ b/tests/codegen/swap-small-types.rs
@@ -1,6 +1,7 @@
 //@ compile-flags: -Copt-level=3 -Z merge-functions=disabled
 //@ only-x86_64
 //@ min-llvm-version: 20
+//@ ignore-std-debug-assertions (`ptr::swap_nonoverlapping` has one which blocks some optimizations)
 
 #![crate_type = "lib"]