On Tue, Nov 24, 2015 at 1:55 PM, Michael Meissner <meiss...@linux.vnet.ibm.com> wrote: > Whoops, I forgot to update the ChangeLog after reversing Fv and Fv2. > > 2015-11-24 David Edelsohn <dje....@gmail.com> > Michael Meissner <meiss...@linux.vnet.ibm.com> > > * config/rs6000/rs6000.md (UNSPEC_XSRDPI): New unspec. > (Fv2): New mode attribute to be used when ISA 2.07 instructions > are used on SF values, and ISA 2.06 instructions on DF values. > (add<mode>3_fpr): Use <Fv2> instead of <Fv>. > (sub<mode>3_fpr): Use <Fv2> instead of <Fv>. > (mul<mode>3_fpr): Use <Fv2> instead of <Fv>. > (div<mode>3_fpr): Use <Fv2> instead of <Fv>. > (sqrt<mode>2): Use <Fv2> instead of <Fv>. > (fre<Fs>): Use <Fv2> instead of <Fv>. > (rsqrt<mode>2): Use <Fv2> instead of <Fv>.
Why are the above instructions converted to Fv2? xsadd, xssub, xsmul, xsdiv, xsre, and xsrsqrte are Power7 instructions. xssqrt and the ones below are Power8. > (cmp<mode>_fpr): Use <Fv2> instead of <Fv>. > (xsrdpi<mode>): Add support for the lround function. > (lround<mode>di2): Likewise. > (fma<mode>4_fpr): Use <Fv2> instead of <Fv>. > (fms<mode>4_fpr): Use <Fv2> instead of <Fv>. > (nfma<mode>4_fpr): Use <Fv2> instead of <Fv>. > (nfms<mode>4_fpr): Use <Fv2> instead of <Fv>. Thanks, David
