ispc/ispc — pull request #730 by egaburov (2014-02-02 17:27:39+00:00)
Title: Added double precision support for reciprocals: rsqrt rcp

Currently, these two just call rsqrt/rcp_varying/uniform_float. But it might be good to have these ones, in case an ISA supports a fast, gross approximation of reciprocals in double precision.