[Bug target/50751] SH Target: Displacement addressing does not work for QImode and HImode

[olegendo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50751

--- Comment #33 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Author: olegendo
Date: Fri Dec  6 19:34:23 2013
New Revision: 205759

URL: http://gcc.gnu.org/viewcvs?rev=205759&root=gcc&view=rev
Log:
    Backport from mainline
    2013-11-26  Oleg Endo  <olegendo@gcc.gnu.org>

    PR target/58314
    PR target/50751
    * config/sh/sh.c (max_mov_insn_displacement, disp_addr_displacement):
    Prefix function names with 'sh_'.  Make them non-static.
    * config/sh/sh-protos.h (sh_disp_addr_displacement,
    sh_max_mov_insn_displacement): Add declarations.
    * config/sh/constraints.md (Q): Reject QImode.
    (Sdd): Use match_code "mem".
    (Snd): Fix erroneous matching of non-memory operands.
    * config/sh/predicates.md (short_displacement_mem_operand): New
    predicate.
    (general_movsrc_operand): Disallow PC relative QImode loads.
    * config/sh/sh.md (*mov<mode>_reg_reg): Remove it.
    (*movqi, *movhi): Merge both insns into...
    (*mov<mode>): ... this new insn.  Replace generic 'm' constraints with
    'Snd' and 'Sdd' constraints.  Calculate insn length dynamically based
    on the operand types.


Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/config/sh/constraints.md
    branches/gcc-4_8-branch/gcc/config/sh/predicates.md
    branches/gcc-4_8-branch/gcc/config/sh/sh-protos.h
    branches/gcc-4_8-branch/gcc/config/sh/sh.c
    branches/gcc-4_8-branch/gcc/config/sh/sh.md