loop.c (current_loop_info): Delete.

2000-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (current_loop_info): Delete.
	(consec_sets_invariant_p): Add loop argument, update callers.
	(get_condition_for_loop): Likewise.
	(count_nonfixed_reads, update_giv_derive): Likewise.
	(simplify_giv_expr, general_induction_var): Likewise.
	(consec_sets_giv, recombine_givs): Likewise.
	(move_movables): Delete loop_start and loop_end arguments,
	add loop argument, and update callers.
	(find_mem_givs, check_final_value): Likewise.
	(record_giv, maybe_eliminate_biv, maybe_eliminate_biv_1): Likewise.
	(loop_invariant_p): Rename from invariant_p, add loop argument, and
	update callers.
	(basic_induction_var): Add loop argument, delete loop_level argument,
	and update callers.
	* unroll.c (iteration_info): Delete loop_start and loop_end arguments,
	add loop argument, and update callers.
	(find_splittable_regs, find_splittable_givs): Likewise.
	(reg_dead_after_loop, loop_find_equiv_value): Likewise.
	(final_biv_value, final_giv_value, back_branch_in_range_p): Likewise.
	(biv_total_increment): Delete loop_start and loop_end arguments;
	update callers.
	(precondition_loop_p): Delete loop_start and loop_info arguments;
	update callers.
	* loop.h (get_condition_for_loop): Add loop argument.
	(biv_total_increment): Delete loop_start and loop_end arguments.
	(precondition_loop_p): Delete loop_start and loop_info arguments;
	add loop argument.
	(final_biv_value): Delete loop_start and loop_end arguments;
	add loop argument.
	(final_giv_value, back_branch_in_range_p): Likewise.

From-SVN: r31618

gcc/ChangeLog

+2000-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* loop.c (current_loop_info): Delete.
+	(consec_sets_invariant_p): Add loop argument, update callers.
+	(get_condition_for_loop): Likewise.
+	(count_nonfixed_reads, update_giv_derive): Likewise.
+	(simplify_giv_expr, general_induction_var): Likewise.
+	(consec_sets_giv, recombine_givs): Likewise.
+	(move_movables): Delete loop_start and loop_end arguments,
+	add loop argument, and update callers.
+	(find_mem_givs, check_final_value): Likewise.
+	(record_giv, maybe_eliminate_biv, maybe_eliminate_biv_1): Likewise.
+	(loop_invariant_p): Rename from invariant_p, add loop argument, and
+	update callers.
+	(basic_induction_var): Add loop argument, delete loop_level argument,
+	and update callers.
+	* unroll.c (iteration_info): Delete loop_start and loop_end arguments,
+	add loop argument, and update callers.
+	(find_splittable_regs, find_splittable_givs): Likewise.
+	(reg_dead_after_loop, loop_find_equiv_value): Likewise.
+	(final_biv_value, final_giv_value, back_branch_in_range_p): Likewise.
+	(biv_total_increment): Delete loop_start and loop_end arguments;
+	update callers.
+	(precondition_loop_p): Delete loop_start and loop_info arguments;
+	update callers.
+	* loop.h (get_condition_for_loop): Add loop argument.
+	(biv_total_increment): Delete loop_start and loop_end arguments.
+	(precondition_loop_p): Delete loop_start and loop_info arguments;
+	add loop argument.
+	(final_biv_value): Delete loop_start and loop_end arguments;
+	add loop argument.
+	(final_giv_value, back_branch_in_range_p): Likewise.
+
 2000-01-25  Gavin Romig-Koch  <gavin@cygnus.com>
 
 	* config/mips/mips.h (LEGITIMATE_CONSTANT_P): Fix for mips16.

gcc/loop.h

@@ -230,23 +230,21 @@ extern int first_increment_giv, last_increment_giv;
 
 /* Forward declarations for non-static functions declared in loop.c and
    unroll.c.  */
-int invariant_p PARAMS ((rtx));
-rtx get_condition_for_loop PARAMS ((rtx));
+int loop_invariant_p PARAMS ((const struct loop *, rtx));
+rtx get_condition_for_loop PARAMS ((const struct loop *, rtx));
 void emit_iv_add_mult PARAMS ((rtx, rtx, rtx, rtx, rtx));
 rtx express_from PARAMS ((struct induction *, struct induction *));
 
 void unroll_loop PARAMS ((struct loop *, int, rtx, int));
-rtx biv_total_increment PARAMS ((struct iv_class *, rtx, rtx));
+rtx biv_total_increment PARAMS ((struct iv_class *));
 unsigned HOST_WIDE_INT loop_iterations PARAMS ((struct loop *));
-int precondition_loop_p PARAMS ((rtx, struct loop_info *, 
+int precondition_loop_p PARAMS ((const struct loop *,
 			       rtx *, rtx *, rtx *, 
 			       enum machine_mode *mode));
-rtx final_biv_value PARAMS ((struct iv_class *, rtx, rtx,
-			   unsigned HOST_WIDE_INT));
-rtx final_giv_value PARAMS ((struct induction *, rtx, rtx,
-			   unsigned HOST_WIDE_INT));
+rtx final_biv_value PARAMS ((const struct loop *, struct iv_class *));
+rtx final_giv_value PARAMS ((const struct loop *, struct induction *));
 void emit_unrolled_add PARAMS ((rtx, rtx, rtx));
-int back_branch_in_range_p PARAMS ((rtx, rtx, rtx));
+int back_branch_in_range_p PARAMS ((const struct loop *, rtx));
 
 int loop_insn_first_p PARAMS ((rtx, rtx));