2018-03-30 20:56 GMT+03:00 H.J. Lu <hjl.to...@gmail.com>: > On Fri, Mar 30, 2018 at 10:19 AM, Ilya Verbin <iver...@gmail.com> wrote: >> This check will always disable AVX-512 on macOS, because they >> implemented on-demand support: >> https://github.com/apple/darwin-xnu/blob/0a798f6738bc1db01281fc08ae024145e84df927/osfmk/i386/fpu.c#L176 >> > > Isn't xsaveopt designed for this?
Maybe the goal was to reduce the size of the area allocated by default for each thread. > -- > H.J. -- Ilya
