[Bug target/85755] PowerPC Gcc's -mupdate produces inefficient code on power8/power9 machines

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85755

--- Comment #9 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Mon Jun 11 16:06:49 2018
New Revision: 261436

URL: https://gcc.gnu.org/viewcvs?rev=261436&root=gcc&view=rev
Log:
        Backport from trunk
        2018-06-11  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/85755
        * config/rs6000/rs6000.md (*movdi_internal32): Put constraint modifiers
        on the correct operand.
        (*movdi_internal64): Ditto.

Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/config/rs6000/rs6000.md