https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104189
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Eric Botcazou <ebotca...@gcc.gnu.org>: https://gcc.gnu.org/g:23987912ddb4207de0714d81237f93f613557d1f commit r12-6938-g23987912ddb4207de0714d81237f93f613557d1f Author: Eric Botcazou <ebotca...@adacore.com> Date: Mon Jan 31 09:21:48 2022 +0100 Use V8+ default in 32-bit mode on SPARC64/Linux This is what has been done for ages on SPARC/Solaris and makes it possible to use 64-bit atomic instructions even in 32-bit mode. gcc/ PR target/104189 * config/sparc/linux64.h (TARGET_DEFAULT): Add MASK_V8PLUS.