[Bug target/85436] [7 Regression] ICE compiling go code with -mcpu=power9

["bergner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85436

--- Comment #4 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Fri Apr 20 12:19:10 2018
New Revision: 259520

URL: https://gcc.gnu.org/viewcvs?rev=259520&root=gcc&view=rev
Log:
gcc/
        Backport from mainline
        2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/83969
        * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
        Add strict argument and use it.
        (rs6000_split_multireg_move): Update for new strict argument.
        (mem_operand_gpr): Disallow all non-offsettable addresses.
        * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.

gcc/testsuite/
        PR target/85436
        * go.dg/pr85436.go: New test.

        Backport from mainline
        2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/83969
        * gcc.target/powerpc/pr83969.c: New test.

Added:
    branches/gcc-7-branch/gcc/testsuite/gcc.target/powerpc/pr83969.c
    branches/gcc-7-branch/gcc/testsuite/go.dg/pr85436.go
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/rs6000/rs6000.c
    branches/gcc-7-branch/gcc/config/rs6000/rs6000.md
    branches/gcc-7-branch/gcc/testsuite/ChangeLog