Small patch for complex moves

[Jeffrey A Law]

  In message < Pine.SOL.3.90.980220110938.20928A-100000@clouseau.informatik.rwth-aachen.de >you write:
  > Here's a small patch that makes the compiler handle complex values like
  > any other multi-register values when moving them. This causes better flow
  > information to be generated. Previously, when returning a complex float on
  > the i386, the compiler used to think that eax and edx, which contain the
  > return value, are live throughout the function.
  > 
  > Bernd
  > 
  > 	* expr.c (emit_move_insn_1): When moving complex values in several
  > 	steps, emit a CLOBBER to show the destination dies.
Thanks.  Installed.

jeff