* loop.h (loop_insn_first_p): Declare.

	* loop.h (loop_insn_first_p): Declare.
	* loop.c (loop_insn_first_p): No longer static.
	* unroll.c (iteration_info) Fix comparison to
	reg_iv_type->num_elements.
	Before accessing reg_biv_class, check index against
	max_reg_before_loop.
	Fix and enable code for giv iterators.
	(loop_iterations): Compare with reg_iv_type->num_elements instead
	of with max_reg_before_loop.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25401 138bc75d-0d04-0410-961f-82ee72b054a4