https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77499
avieira at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kugan at gcc dot gnu.org --- Comment #12 from avieira at gcc dot gnu.org --- I heard Kugan was working on getting rid of superfluous zero_extends. Adding him to the watch list. @Kugan: Could your work help this case? And when do you plan to have it submitted?