On Tue, Aug 22, 2017 at 1:32 PM, Marek Olšák <mar...@gmail.com> wrote: > On Tue, Aug 22, 2017 at 7:28 PM, Ilia Mirkin <imir...@alum.mit.edu> wrote: >> How do you propose defining the semantics for e.g. loading a 16-bit >> value from a constbuf/ssbo? Would those get separate instructions? > > st/mesa should use UP2H, PK2H and similar opcodes for I16 and U16, and > drivers can replace them with MOV if HalfPrecision == 1.
The idea I had been toying with was to instead mark TEMP's as 16-bit precision and letting ops like ADD infer whatever they need from that. I don't know whether that's any different from your suggestion, and if it is, whether it's better or worse though. Just mentioning it. Cheers, -ilia _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
