On Mon, Mar 5, 2012 at 8:12 PM, Andi Kleen <a...@firstfloor.org> wrote: >> Removing -mrtm option would remove one point of control. > > If I use the intrinsics I can never remove it because it would just make the > code not compile. > > If I don't use the intrinsics I never need it in the first place.
Aha, I see your point now. IIUC, you are annoyed by: +#ifndef __RTM__ +# error "RTM instruction set not enabled" +#endif /* __RTM__ */ in the headers. Indeed, this prevents "#pragma GCC target" to be effective. But OTOH, intrinsics are internally implemented using code sequences that call various __builtin_* functions, so they require correct target flags to be set when #included... I doubt this can be fixed in any sensible way. Maybe by adding correct #pragmas around header #include ? Uros.
