Remove value_range typedef.

Now that pointers and integers have been disambiguated from irange,
and all the pointer range temporaries use prange, we can reclaim
value_range as a general purpose range container.

This patch removes the typedef, in favor of int_range_max, thus
providing slightly better ranges in places.  I have also used
int_range<1> or <2> when it's known ahead of time how big the range will
be, thus saving a few words.

In a follow-up patch I will rename the Value_Range temporary to
value_range.

No change in performance.

gcc/ChangeLog:

	* builtins.cc (expand_builtin_strnlen): Replace value_range use
	with int_range_max or irange when appropriate.
	(determine_block_size): Same.
	* fold-const.cc (minmax_from_comparison): Same.
	* gimple-array-bounds.cc (check_out_of_bounds_and_warn): Same.
	(array_bounds_checker::check_array_ref): Same.
	* gimple-fold.cc (size_must_be_zero_p): Same.
	* gimple-predicate-analysis.cc (find_var_cmp_const): Same.
	* gimple-ssa-sprintf.cc (get_int_range): Same.
	(format_integer): Same.
	(try_substitute_return_value): Same.
	(handle_printf_call): Same.
	* gimple-ssa-warn-restrict.cc
	(builtin_memref::extend_offset_range): Same.
	* graphite-sese-to-poly.cc (add_param_constraints): Same.
	* internal-fn.cc (get_min_precision): Same.
	* match.pd: Same.
	* pointer-query.cc (get_size_range): Same.
	* range-op.cc (get_shift_range): Same.
	(operator_trunc_mod::op1_range): Same.
	(operator_trunc_mod::op2_range): Same.
	* range.cc (range_negatives): Same.
	* range.h (range_positives): Same.
	(range_negatives): Same.
	* tree-affine.cc (expr_to_aff_combination): Same.
	* tree-data-ref.cc (compute_distributive_range): Same.
	(nop_conversion_for_offset_p): Same.
	(split_constant_offset): Same.
	(split_constant_offset_1): Same.
	(dr_step_indicator): Same.
	* tree-dfa.cc (get_ref_base_and_extent): Same.
	* tree-scalar-evolution.cc (iv_can_overflow_p): Same.
	* tree-ssa-math-opts.cc (optimize_spaceship): Same.
	* tree-ssa-pre.cc (insert_into_preds_of_block): Same.
	* tree-ssa-reassoc.cc (optimize_range_tests_to_bit_test): Same.
	* tree-ssa-strlen.cc (compare_nonzero_chars): Same.
	(dump_strlen_info): Same.
	(get_range_strlen_dynamic): Same.
	(set_strlen_range): Same.
	(maybe_diag_stxncpy_trunc): Same.
	(strlen_pass::get_len_or_size): Same.
	(strlen_pass::handle_builtin_string_cmp): Same.
	(strlen_pass::count_nonzero_bytes_addr): Same.
	(strlen_pass::handle_integral_assign): Same.
	* tree-switch-conversion.cc (bit_test_cluster::emit): Same.
	* tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Same.
	(vect_do_peeling): Same.
	* tree-vect-patterns.cc (vect_get_range_info): Same.
	(vect_recog_divmod_pattern): Same.
	* tree.cc (get_range_pos_neg): Same.
	* value-range.cc (debug): Remove value_range variants.
	* value-range.h (value_range): Remove typedef.
	* vr-values.cc
	(simplify_using_ranges::op_with_boolean_value_range_p): Replace
	value_range use with int_range_max or irange when appropriate.
	(check_for_binary_op_overflow): Same.
	(simplify_using_ranges::legacy_fold_cond_overflow): Same.
	(find_case_label_ranges): Same.
	(simplify_using_ranges::simplify_abs_using_ranges): Same.
	(test_for_singularity): Same.
	(simplify_using_ranges::simplify_compare_using_ranges_1): Same.
	(simplify_using_ranges::simplify_casted_compare): Same.
	(simplify_using_ranges::simplify_switch_using_ranges): Same.
	(simplify_conversion_using_ranges): Same.
	(simplify_using_ranges::two_valued_val_range_p): Same.

1 files changed, 2 insertions, 2 deletions

diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc
index 88e7e34..81e8fdc 100644
--- a/gcc/tree-vect-patterns.cc
+++ b/gcc/tree-vect-patterns.cc
@@ -66,7 +66,7 @@ along with GCC; see the file COPYING3.  If not see
 bool
 vect_get_range_info (tree var, wide_int *min_value, wide_int *max_value)
 {
-  value_range vr;
+  int_range_max vr;
   tree vr_min, vr_max;
   get_range_query (cfun)->range_of_expr (vr, var);
   if (vr.undefined_p ())
@@ -5011,7 +5011,7 @@ vect_recog_divmod_pattern (vec_info *vinfo,
 	t3 = t2;
 
       int msb = 1;
-      value_range r;
+      int_range_max r;
       get_range_query (cfun)->range_of_expr (r, oprnd0);
       if (!r.varying_p () && !r.undefined_p ())
 	{