On Thu, May 21, 2015 at 1:25 AM, <junyan...@inbox.com> wrote: > From: Junyan He <junyan...@linux.intel.com> > > Because the CPU of X86 does not support half float > instructions, there is no support for half float operations. > So we introduce the half class to handle the operations for > half float using llvm's APFloat utility.
Ivybridge and newer have the F16C instruction set (http://en.wikipedia.org/wiki/F16C) which offers instructions to convert half-precision <-> single-precision floats. I don't know if it's valuable to use it, but it's there. _______________________________________________ Beignet mailing list Beignet@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/beignet
