https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105162
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Sebastian Pop <s...@gcc.gnu.org>: https://gcc.gnu.org/g:407adcb310df7c85387a02f9b0d5f1df770258e9 commit r9-10184-g407adcb310df7c85387a02f9b0d5f1df770258e9 Author: Sebastian Pop <s...@amazon.com> Date: Mon Apr 18 15:13:20 2022 +0000 [AArch64] add barriers to ool __sync builtins 2022-05-13 Sebastian Pop <s...@amazon.com> gcc/ PR target/105162 * config/aarch64/aarch64-protos.h (atomic_ool_names): Increase dimension of str array. * config/aarch64/aarch64.c (aarch64_atomic_ool_func): Call memmodel_from_int and handle MEMMODEL_SYNC_*. (DEF0): Add __aarch64_*_sync functions. gcc/testsuite/ PR target/105162 * gcc.target/aarch64/sync-comp-swap-ool.c: New. * gcc.target/aarch64/sync-op-acquire-ool.c: New. * gcc.target/aarch64/sync-op-full-ool.c: New. * gcc.target/aarch64/target_attr_20.c: Update check. * gcc.target/aarch64/target_attr_21.c: Same. libgcc/ PR target/105162 * config/aarch64/lse.S: Define BARRIER and handle memory MODEL 5. * config/aarch64/t-lse: Add a 5th memory model for _sync functions.