c4x.c (c4x_emit_move_sequence): Do not force large constants into memory.

c4x.c (c4x_emit_move_sequence): Do not force large constants into memory.

Sat Sep  4 11:37:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_emit_move_sequence): Do not force large
	constants into memory.
	(c4x_shiftable_constant): New function.
	* config/c4x/c4x.c (LEGITIMATE_CONSTANT_P): Allow any CONST_INT.
	(c4x_shiftable_constant): Declare.
	* config/c4x/c4x.md (loadqi_big_constant, loadhi_big_constant,
 	ashlqi3_noclobber): Add new patterns and associated splitters.

From-SVN: r29092