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

[bergner at gcc dot gnu.org]

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

--- Comment #7 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Fri Jun  8 17:17:45 2018
New Revision: 261340

URL: https://gcc.gnu.org/viewcvs?rev=261340&root=gcc&view=rev
Log:
gcc/
        PR target/85755
        * config/rs6000/rs6000.c (mem_operand_gpr): Enable PRE_INC and PRE_DEC
        addresses.

gcc/testsuite/
        PR target/85755
        * gcc.target/powerpc/pr85755.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr85755.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/testsuite/ChangeLog