https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87763
--- Comment #34 from Steve Ellcey <sje at gcc dot gnu.org> --- I submitted a patch that would fix gcc.target/aarch64/combine_bfi_1.c back in February but have not gotten any feedback on the final version of the patch despite a couple of pings. I have resubmitted the patch again today to see if one of the Aarch64 maintainers will look at it. https://gcc.gnu.org/ml/gcc-patches/2019-04/msg00045.html