c4x.c (c4x_parallel_process): Disable until BCT loop optimization stable for the...

c4x.c (c4x_parallel_process): Disable until BCT loop optimization stable for the C4x.

	* config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
	loop optimization stable for the C4x.
	(c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
	c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
	c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
	loop optimization).
	(c4x_address_conflict): Be more paranoid when packing a volatile
	memref in a parallel load/store.

From-SVN: r23196