[dmd-internals] [D-Programming-Language/dmd] 69162c: sync up with D2's backend

[GitHub via dmd-internals]

  Branch: refs/heads/dmd-1.x
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: 69162ce0ee1667ce12e6612e77ed99fa34582217
      https://github.com/D-Programming-Language/dmd/commit/69162ce0ee1667ce12e6612e77ed99fa34582217
  Author: Walter Bright <walter at walterbright.com>
  Date:   2015-09-28 (Mon, 28 Sep 2015)

  Changed paths:
    M src/backend/cdef.h
    M src/backend/cdeflnx.h
    M src/backend/cgcs.c
    M src/backend/cgelem.c
    M src/backend/cgen.c
    M src/backend/cgobj.c
    M src/backend/cod2.c
    M src/backend/cod4.c
    M src/backend/code_x86.h
    M src/backend/dt.c
    M src/backend/dt.h
    M src/backend/elfobj.c
    M src/backend/evalu8.c
    M src/backend/glocal.c
    M src/backend/gloop.c
    M src/backend/gother.c
    M src/backend/machobj.c
    M src/backend/newman.c
    M src/backend/oper.h
    M src/backend/outbuf.c
    M src/backend/outbuf.h
    M src/backend/parser.h
    M src/backend/type.c
    M src/backend/type.h
    M src/backend/var.c

  Log Message:
  -----------
  sync up with D2's backend