[ARC] Don't split ior/mov predicated insns.

[ARC] Don't split ior/mov predicated insns.

Do not split long immediate constants for predicated instructions.

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_split_ior): Add asserts.
	(arc_split_mov_const): Likewise.
	(arc_check_ior_const): Do not match known short immediate values.
	* config/arc/arc.md (movsi): Don't split predicated instructions.
	(iorsi): Likewise.

testsuite/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>
	Sahahb Vahedi  <shahab@synopsys.com>
	Cupertino Miranda  <cmiranda@synopsys.com>

	* gcc.target/arc/or-cnst-size2.c: New test.

Co-Authored-By: Sahahb Vahedi <shahab@synopsys.com>
From-SVN: r277885