https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111502
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization --- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- You need to trace RTL expansion where it decides to use a temporary stack slot, there's likely some instruction pattern missing to compose the larger words.