https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113652
--- Comment #19 from Michael Meissner <meissner at gcc dot gnu.org> --- When I wrote the VSX support many years ago, I intended that -mvsx enable all of ISA 2.06, which includes ISA 2.05, etc. My intentions were there 2 options for power7, one is the base ISA 2.07 support for everything except the VSX registers (i.e. -mpopcntd), and the other enables the floating point support. The reason is the kernel needs to be built without floating point support. If you say -mvsx, it should include the standard power7 integer instructions (-mpopcntd), power6 server instructions (i.e. -mhard-dfp, -mcmpb, -mrecip, -mpowerpc-gfxopt, and -mpowerpc-gpopt), etc. VSX support assumes it can use lfiwax and lfiwzx.
