[Bug target/71656] ICE in reload when generating code for -mcpu=power9 -mpower9-dform-vector

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71656

--- Comment #6 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Fri Jul  1 17:56:54 2016
New Revision: 237919

URL: https://gcc.gnu.org/viewcvs?rev=237919&root=gcc&view=rev
Log:
gcc/
        Backport from trunk
        2016-06-27  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/71656
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
        OPTION_MASK_P9_DFORM_VECTOR.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
        disable -mpower9-dform-vector when using reload.
        (quad_address_p): Remove 'gpr_p' argument and all associated code.
        New 'strict' argument.  Update all callers.  Add strict addressing
        support.
        (rs6000_legitimate_offset_address_p): Remove call to
        virtual_stack_registers_memory_p.
        (rs6000_legitimize_reload_address): Add quad address support.
        (rs6000_legitimate_address_p): Move call to quad_address_p above
        call to virtual_stack_registers_memory_p.  Adjust quad_address_p args
        to account for new strict usage.
        (rs6000_output_move_128bit): Adjust quad_address_p args to account
        for new strict usage.
        * config/rs6000/predicates.md (quad_memory_operand): Likewise.

gcc/testsuite/
        Backport from trunk
        2016-06-27  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/71656
        * gcc.target/powerpc/pr71656-1.c: New test.
        * gcc.target/powerpc/pr71656-2.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/pr71656-1.c
    branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/pr71656-2.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/config/rs6000/predicates.md
    branches/gcc-6-branch/gcc/config/rs6000/rs6000-cpus.def
    branches/gcc-6-branch/gcc/config/rs6000/rs6000.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog