https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107830
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tamar Christina <tnfch...@gcc.gnu.org>: https://gcc.gnu.org/g:71f3036b8a83da7fb559923bc80687ea1dabe14a commit r13-4303-g71f3036b8a83da7fb559923bc80687ea1dabe14a Author: Tamar Christina <tamar.christ...@arm.com> Date: Fri Nov 25 12:57:24 2022 +0000 sve2: Fix expansion of division [PR107830] SVE has an actual division optab, and when using -Os we don't optimize the division away. This means that we need to distinguish between a div which we can optimize and one we cannot even during expansion. gcc/ChangeLog: PR target/107830 * config/aarch64/aarch64.cc (aarch64_vectorize_can_special_div_by_constant): Check validity during codegen phase as well. gcc/testsuite/ChangeLog: PR target/107830 * gcc.target/aarch64/sve2/pr107830-1.c: New test. * gcc.target/aarch64/sve2/pr107830-2.c: New test.