[ARC] Add support for QuarkSE processor.

[ARC] Add support for QuarkSE processor.

gcc/
2016-11-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-arches.def: Add FPX quarkse instruction as valid
	for arcem.
	* config/arc/arc-c.def (__ARC_FPX_QUARK__): Define.
	* config/arc/arc-cpus.def (quarkse_em): Add.
	* config/arc/arc-options.def (FL_FPX_QUARK, FL_QUARK): Likewise.
	* config/arc/arc-opts.h (FPX_QK): Define.
	* config/arc/arc-tables.opt: Regenerate.
	* config/arc/arc.c (gen_compare_reg): Change.
	(arc_register_move_cost): Avoid Dy,Dx moves.
	* config/arc/arc.h (TARGET_HARD_FLOAT): Change.
	(TARGET_FPX_QUARK, TARGET_FP_ASSIST): Define.
	* config/arc/arc.md (divsf3, sqrtsf2, fix_truncsfsi2, floatsisf2):
	New expands.
	* config/arc/fpu.md (divsf3_fpu, sqrtsf2_fpu, floatsisf2_fpu)
	(fix_truncsfsi2_fpu): Rename.
	* config/arc/fpx.md (cmp_quark, cmpsf_quark_, cmpsf_quark_ord)
	(cmpsf_quark_uneq, cmpsf_quark_eq, divsf3_quark, sqrtsf2_quark)
	(fix_truncsfsi2_quark, floatsisf2_quark): New patterns.
	* config/arc/t-multilib: Regenerate.

From-SVN: r242546