[Bug target/78602] PowerPC vec-extract-v2df.c can fail if -mcpu=power9 -O0

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78602

--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Wed Nov 30 18:43:17 2016
New Revision: 243044

URL: https://gcc.gnu.org/viewcvs?rev=243044&root=gcc&view=rev
Log:
2016-11-30  Michael Meissner  <meiss...@linux.vnet.ibm.com>

        PR target/78602
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): If the
        element is not a constant or in a register, force it to a
        register.

        PR target/78560
        * config/rs6000/rs6000.c (rs6000_expand_vector_set): Force value
        that will be set to a vector element to be in a register.
        * config/rs6000/vsx.md (vsx_set_<mode>_p9): Fix thinko that used
        the wrong multiplier to convert the element number to a byte
        offset.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/rs6000/vsx.md