diff --git a/etc/TODO b/etc/TODO
index d37ca6646bb..756ce49e2a4 100644
--- a/etc/TODO
+++ b/etc/TODO
@@ -926,6 +926,12 @@ in the same CU don't have to go through funcall.  If one of these
 functions is redefined, a trampoline is compiled and installed to
 restore the redirection through funcall.
 
+**** Better runtime function inlining
+
+Several functions could be open-coded in generated code once exposed to
+libgccjit.  Two simple first candidates are probably 'maybe_quit' and
+'maybe_gc'.
+
 *** Features to be improved or missing
 
 **** Make use of function type declaration