[Bug target/87870] ppc64le generates poor code when loading constants into TImode vars

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87870

--- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Mon Dec 17 22:07:11 2018
New Revision: 267221

URL: https://gcc.gnu.org/viewcvs?rev=267221&root=gcc&view=rev
Log:
gcc/
        PR target/87870
        * config/rs6000/vsx.md (nW): New mode iterator.
        (vsx_mov<mode>_64bit): Use it.  Remove redundant GPR 0/-1 alternative.
        Update length attribute for (<??r>, <nW>)  alternative.
        (vsx_mov<mode>_32bit): Likewise.

gcc/testsuite/
        PR target/87870
        * gcc.target/powerpc/pr87870.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr87870.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/vsx.md
    trunk/gcc/testsuite/ChangeLog