https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127107
--- Comment #5 from Drea Pinski <pinskia at gcc dot gnu.org> --- Created attachment 65434 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65434&action=edit Patch which I am testing This fixes up this part of the forwprop. I didn't see if I needed to update the aarch64 testcases though. If you want to use a mode wider than MAX_FIXED_MODE_SIZE for anything besides a storage unit; you need to use _BitInt. I might look into that later on. Using _BitInt for possible widdening multiply before the lowering of BitInt happens. And then the BitInt lowering pass will lower it correctly (still need to have that added it seem).
