only loop if left and right are not literals

vyperlang · Mar 31, 2022 · 44b548e · 44b548e
1 parent 5732a3b
commit 44b548e
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/vyper/codegen/core.py b/vyper/codegen/core.py
@@ -815,7 +815,13 @@ def _complex_make_setter(left, right):
         assert _len == left.typ.storage_size_in_words * 32  # only the paranoid survive
         return copy_bytes(left, right, _len, _len)
 
-    if isinstance(left.typ, SArrayType) and left.typ.count > ROLL_ARRAY_TUNING:
+    should_loop = (
+        isinstance(left.typ, SArrayType)
+        and left.typ.count > ROLL_ARRAY_TUNING
+        and not left.is_literal
+        and not right.is_literal
+    )
+    if should_loop:
         n = left.typ.count
 
         i = IRnode.from_list(_freshname("copy_sarray_ix"), typ="uint256")