On Mon, Oct 12, 2015 at 3:07 PM, Roland Scheidegger <srol...@vmware.com> wrote: > As far as I can tell (and I could easily be wrong here...) intel hw > doesn't have explicit conversion instruction, you just say it's a f16 > destination. As such I believe the conversion used would just use > ordinary rounding mode, which is of course usually round to nearest even > (and the docs don't seem to mention it, but seems likely that too large > floats would get converted to infinities using that mode). Rounding mode > is of course changeable (but would need to change it back after f32->f16 > mov).
There's F32TO16/F16TO32 in Gen7 (IVB, HSW, VLV). The software routines were modified to match their behavior for constant propagation, as far as I know. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
