constraints.md (Wfr): Change to be a non-memory constraint.

constraints.md (Wfr): Change to be a non-memory constraint.

* config/rl78/constraints.md (Wfr): Change to be a non-memory
constraint.
* config/rl78/rl78-protos.h (rl78_one_far_p): Declare.
* config/rl78/rl78.c (rl78_one_far_p): Define.
* config/rl78/rl78-virt (movqi_virt): Fix far memory
alternatives.
(movhi_virt): Likewise.
(zero_extendqihi2_virt): Likewise.
(extendqihi2_virt): Likewise.
(add<mode>3_virt): Likewise.
(sub<mode>3_virt): Likewise.
(andqi3_virt): Likewise.
(iorqi3_virt): Likewise.
(xorqi3_virt): Likewise.
* config/rl78/rl78-real.md (bf,br): Use long forms to avoid reloc
overflow in large files.

From-SVN: r231394