https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101275
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kito Cheng <k...@gcc.gnu.org>: https://gcc.gnu.org/g:18a463bb666cc8f3421589e7641ec617acb84741 commit r12-2268-g18a463bb666cc8f3421589e7641ec617acb84741 Author: Kito Cheng <kito.ch...@sifive.com> Date: Fri Jul 2 10:19:30 2021 +0800 docs: Add 'S' to Machine Constraints for RISC-V It was undocument before, but it might used in linux kernel for resolve code model issue, so LLVM community suggest we should document that, so that make it become supported/documented/non-internal machine constraints. gcc/ChangeLog: PR target/101275 * config/riscv/constraints.md ("S"): Update description and remove @internal. * doc/md.texi (Machine Constraints): Document the 'S' constraints for RISC-V.