Re: [PATCH v2] libatomic: Enable lock-free 128-bit atomics on AArch64 [PR110061]

2023-12-04 Thread Richard Sandiford
Wilco Dijkstra writes: > Hi Richard, > >>> Enable lock-free 128-bit atomics on AArch64. This is backwards compatible >>> with >>> existing binaries, gives better performance than locking atomics and is what >>> most users expect. >> >> Please add a justification for why it's backwards compatible

Re: [PATCH v2] libatomic: Enable lock-free 128-bit atomics on AArch64 [PR110061]

2023-12-04 Thread Wilco Dijkstra
Hi Richard, >> Enable lock-free 128-bit atomics on AArch64.  This is backwards compatible >> with >> existing binaries, gives better performance than locking atomics and is what >> most users expect. > > Please add a justification for why it's backwards compatible, rather > than just stating that