On Sat, 16 Nov 2019 at 22:26, Jeffrey Walton <noloader@xxxxxxxxx> wrote: > > On Sat, Nov 16, 2019 at 5:19 PM Segher Boessenkool > <segher@xxxxxxxxxxxxxxxxxxx> wrote: > > > > On Sat, Nov 16, 2019 at 04:25:18PM -0500, Jeffrey Walton wrote: > > > On Sat, Nov 16, 2019 at 1:26 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > > > > ... > > > The problems with GCC seem to be a little larger then inaccurate docs. > > > > The GCC docs are perfectly accurate for this as well. > > > > GCC 7 is older than this revision of the ELFv2 specification, and we never > > backported this feature: only very important features are backported. It > > could have made 7.2, over two years ago, but it wasn't considered important > > enough to backport. > > Then you don't understand how search works in 2019 and how users > search for information. We cannot search for the absence of > information. The information is there: https://gcc.gnu.org/onlinedocs/gcc-7.5.0/gcc/PowerPC-AltiVec_002fVSX-Built-in-Functions.html#PowerPC-AltiVec_002fVSX-Built-in-Functions That lists the functions enabled by -mcpu=power9 in GCC 7. Stop reading the wrong docs.