2004-01-31  Paolo Bonzini  <bonzini@gnu.org>

 	* combine.c (cse_main): Set gen_lowpart to gen_lowpart_for_combine
	and restore it to gen_lowpart_general on exit.
	(gen_lowpart_for_combine): Adjust all callers to go through
	gen_lowpart.
	* cse.c (cse_main): Set gen_lowpart to gen_lowpart_if_possible
	and restore it to gen_lowpart_general on exit.
	(gen_lowpart_if_possible): Adjust all callers to go through
	gen_lowpart.
	* emit-rtl.c (gen_lowpart_general): New name of gen_lowpart.
	(gen_lowpart): Declare as pointer to function, initialized to
	gen_lowpart_general.
	* rtl.h (gen_lowpart): Declare as pointer to function.

From-SVN: r77026