https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103465
--- Comment #32 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Eric Botcazou <ebotca...@gcc.gnu.org>: https://gcc.gnu.org/g:90e463661d81f85a2365b89bea2b0cc6070ae024 commit r9-9905-g90e463661d81f85a2365b89bea2b0cc6070ae024 Author: Eric Botcazou <ebotca...@adacore.com> Date: Mon Jan 10 12:40:10 2022 +0100 Properly enable -freorder-blocks-and-partition on 64-bit Windows The PR uncovered that -freorder-blocks-and-partition was working by accident on 64-bit Windows, i.e. the middle-end was supposed to disable it with SEH. After the change installed on mainline, the middle-end properly disables it, which is too bad since a significant amount of work went into it for SEH. gcc/ PR target/103465 * coretypes.h (unwind_info_type): Swap UI_SEH and UI_TARGET.