1 files changed, 20 insertions, 0 deletions
diff --git a/test/libyul/yulOptimizerTests/blockFlattener/basic.yul b/test/libyul/yulOptimizerTests/blockFlattener/basic.yul
new file mode 100644
index 00000000..adcaedd0
--- /dev/null
+++ b/test/libyul/yulOptimizerTests/blockFlattener/basic.yul
@@ -0,0 +1,20 @@
+{
+  let _1 := mload(0)
+  let f_a := mload(1)
+  let f_r
+  {
+    f_a := mload(f_a)
+    f_r := add(f_a, calldatasize())
+  }
+  let z := mload(2)
+}
+// ----
+// blockFlattener
+// {
+//     let _1 := mload(0)
+//     let f_a := mload(1)
+//     let f_r
+//     f_a := mload(f_a)
+//     f_r := add(f_a, calldatasize())
+//     let z := mload(2)
+// }