On Fri, 2022-02-25 at 09:35 +0100, Stefan Ring via Gcc-help wrote: > On Thu, Feb 24, 2022 at 9:39 PM Satish Vasudeva via Gcc-help > <gcc-help@xxxxxxxxxxx> wrote: > > > > Please let into this intel architecture manual , section 8.1.1 > > > > https://cdrdv2.intel.com/v1/dl/getContent/671190 > > > > I think Intel claims 16B operations are atomic , unless I am missing > > something. > > Interesting. This seems to be a somewhat recent addition, and the > mailing list discussion linked to above predates it. Coincidentally, I > pulled a copy of the Intel manuals at almost exactly the same time as > this discussion, and sure enough, it does not yet contain the > paragraph about 16 byte operations. It seems an addition in Dec 2021 revision: https://cdrdv2.intel.com/v1/dl/getContent/671294 Create an issue in bugzilla then? -- Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
