https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89701
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>: https://gcc.gnu.org/g:1c6231c05bdccab3a21abcbb75e2094ea3e98782 commit r14-2692-g1c6231c05bdccab3a21abcbb75e2094ea3e98782 Author: liuhongt <hongtao....@intel.com> Date: Fri May 12 15:15:08 2023 +0800 Provide -fcf-protection=branch,return. Use EnumSet instead of EnumBitSet since CF_FULL is not power of 2. It is a bit tricky for sets classification, cf_branch and cf_return should be in different sets, but they both "conflicts" cf_full, cf_none. And current EnumSet don't handle this well. So in the current implementation, only cf_full,cf_none are exclusive to each other, but they can be combined with any cf_branch, cf_return, cf_check. It's not perfect, but still an improvement than original one. gcc/ChangeLog: PR target/89701 * common.opt: (fcf-protection=): Add EnumSet attribute to support combination of params. gcc/testsuite/ChangeLog: * c-c++-common/fcf-protection-10.c: New test. * c-c++-common/fcf-protection-11.c: New test. * c-c++-common/fcf-protection-12.c: New test. * c-c++-common/fcf-protection-8.c: New test. * c-c++-common/fcf-protection-9.c: New test. * gcc.target/i386/pr89701-1.c: New test. * gcc.target/i386/pr89701-2.c: New test. * gcc.target/i386/pr89701-3.c: New test.
