tree.h (memmodel_from_int, [...]): Move to ...

2016-09-26  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * tree.h (memmodel_from_int, memmodel_base, is_mm_relaxed,
    is_mm_consume, is_mm_acquire, is_mm_release, is_mm_acq_rel,
    is_mm_seq_cst, is_mm_sync): Move to ...
    * memmodel.h: This.  New file.
    * builtins.c: Include memmodel.h.
    * optabs.c: Likewise.
    * tsan.c: Likewise.
    * config/aarch64/aarch64.c: Likewise.
    * config/alpha/alpha.c: Likewise.
    * config/arm/arm.c: Likewise.
    * config/i386/i386.c: Likewise.
    * config/ia64/ia64.c: Likewise.
    * config/mips/mips.c: Likewise.
    * config/rs6000/rs6000.c: Likewise.
    * config/sparc/sparc.c: Likewise.
    * genconditions.c: Include memmodel.h in generated file.
    * genemit.c: Likewise.
    * genoutput.c: Likewise.
    * genpeep.c: Likewise.
    * genpreds.c: Likewise.
    * genrecog.c: Likewise.

    gcc/c-family/
    * c-common.c: Include memmodel.h.

From-SVN: r240504