https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90822
Michael Meissner <meissner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-06-11
Ever confirmed|0 |1
--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> ---
Round can call sign/zero_extend directly.
My thought is I want to redo the splitters so they are similar to the QImode
and HImode float patterns in power9. I.e. keep the insn until after reload and
then split into sign/zero extend and convert.
The reason is for offset addresses, the register allocator seems to think it is
a better idea to load it into a GPR (which has offset loads) and then do a
direct move to the fpr/vector registers. Instead I tend to think LI of the
offset and using the LFIWAX/LFIWZX instructions to load it to a fpr/vector
register directly.
