1 files changed, 14 insertions, 0 deletions
diff --git a/tests/mir-opt/const_prop/while_let_loops.rs b/tests/mir-opt/const_prop/while_let_loops.rs
new file mode 100644
index 000000000..595a94b88
--- /dev/null
+++ b/tests/mir-opt/const_prop/while_let_loops.rs
@@ -0,0 +1,14 @@
+// unit-test: ConstProp
+// EMIT_MIR while_let_loops.change_loop_body.ConstProp.diff
+
+pub fn change_loop_body() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+fn main() {
+    change_loop_body();
+}