https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94114
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:2fd27691f213f2e808626c4cd492b00c801a00fa commit r9-8388-g2fd27691f213f2e808626c4cd492b00c801a00fa Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Mar 11 09:32:22 2020 +0100 ldist: Further fixes for -ftrapv [PR94114] As the testcase shows, arithmetics that for -ftrapv would need multiple basic blocks can show up not just in nb_bytes expressions where we are calling rewrite_to_non_trapping_overflow for a while already, but also in the pointer expression to the start of the region. While the testcase covers just the first hunk and I've failed to create a testcase for the latter, it is at least in theory possible too, so I've adjusted that hunk too. 2020-03-11 Jakub Jelinek <ja...@redhat.com> PR tree-optimization/94114 * tree-loop-distribution.c (generate_memset_builtin): Call rewrite_to_non_trapping_overflow even on mem. (generate_memcpy_builtin): Call rewrite_to_non_trapping_overflow even on dest and src. * gcc.dg/pr94114.c: New test.
