https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110061
Bug ID: 110061 Summary: libatomic: 128-bit atomics should be lock-free on AArch64 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: wilco at gcc dot gnu.org Target Milestone: --- 128-bit atomics should be lock-free on AArch64. This is what most users expect, gives better performance and makes it possible to inline/outline the recently added 128-bit atomic instructions. It also makes GCC and LLVM ABI compatible (since LLVM atomics are always lock-free).