alpha.c (alpha_split_tfmode_pair): Rename into alpha_split_tmode_pair.

	* config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
	alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
	Test against the appropriate null constant for the mode.
	If 'fixup_overlap' is true, swap the operands if they overlap.
	(alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
	* config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
	alpha_split_tmode_pair and adjust for above change.
	* config/alpha/alpha.md (movtf_internal): Adjust call to
	alpha_split_tfmode_pair and rely on it to swap the operands.
	(movti_internal): New insn and post-reload splitter.
	(movti): New expander.

From-SVN: r109882