v850.c (ep_memory_operand): Return FALSE if TARGET_EP is not defined.

v850.c (ep_memory_operand): Return FALSE if TARGET_EP is not defined.

* config/v850/v850.c (ep_memory_operand): Return FALSE if TARGET_EP is not
  defined.
* config/v850/c850.h (TARGET_CPU_CPP_BUILTINS): Define __EP__ if TARGET_EP is
  enabled.
  (OPTIMIZATION_OPTIONS): Do not define MASK_EP when optimizing.
* config/v850/v850.md (save_all_interrupt): Only use the EP register if
  TARGET_EP is defined.
  (restore_all_interrupt): Likewise.
* config/v850/lib1funcs.asm: Update functions so that the EP register is only
  used if __EP__ is defined.

From-SVN: r103520