tree-vrp: add "const" qualifier to various value_range pointers

gcc/ChangeLog:
	* tree-vrp.c (copy_value_range): Convert param "from" from
	"value_range *" to "const value_range *".
	(range_is_null): Likewise for param "vr".
	(range_int_cst_p): Likewise.
	(range_int_cst_singleton_p): Likewise.
	(symbolic_range_p): Likewise.
	(value_ranges_intersect_p): Likewise for both params.
	(value_range_nonnegative_p): Likewise for param "vr".
	(value_range_constant_singleton): Likewise.
	(vrp_set_zero_nonzero_bits): Likewise for param "ar".
	(extract_range_into_wide_ints): Likewise for param "vr".
	(extract_range_from_multiplicative_op): Likewise for params "vr0"
	and "vr1".
	(vrp_can_optimize_bit_op): Likewise.
	(extract_range_from_binary_expr_1): Likewise for params "vr0_" and
	"vr1_".
	(extract_range_from_unary_expr): Likewise.
	(debug_value_range): Likewise for param "vr".
	(value_range::dump): Add "const" qualifier.
	(vrp_prop::check_array_ref): Convert local "vr" from
	"value_range *" to "const value_range *".
	(vrp_prop::check_mem_ref): Likewise.
	(vrp_prop::visit_stmt): Likewise for local "old_vr".
	(vrp_intersect_ranges_1): Likewise for param "vr_1".
	(vrp_intersect_ranges): Likewise.
	(simplify_stmt_for_jump_threading): Likewise for local "vr".
	(vrp_prop::vrp_finalize): Likewise.
	* tree-vrp.h (value_range::dump): Add "const" qualifier.
	(vrp_intersect_ranges): Add "const" qualifier to params as above.
	(extract_range_from_unary_expr): Likewise.
	(value_range_constant_singleton): Likewise.
	(symbolic_range_p): Likewise.
	(copy_value_range): Likewise.
	(extract_range_from_binary_expr_1): Likewise.
	(range_int_cst_p): Likewise.
	(vrp_set_zero_nonzero_bits): Likewise.
	(range_int_cst_singleton_p): Likewise.

From-SVN: r264020

1 files changed, 11 insertions, 11 deletions

diff --git a/gcc/tree-vrp.h b/gcc/tree-vrp.h
index f8c1c0c..2f66161 100644
--- a/gcc/tree-vrp.h
+++ b/gcc/tree-vrp.h
@@ -51,16 +51,16 @@ struct GTY((for_user)) value_range
   bitmap equiv;
 
   /* Dump value range to stderr.  */
-  void dump ();
+  void dump () const;
 };
 
-extern void vrp_intersect_ranges (value_range *vr0, value_range *vr1);
+extern void vrp_intersect_ranges (value_range *vr0, const value_range *vr1);
 extern void vrp_meet (value_range *vr0, const value_range *vr1);
 extern void dump_value_range (FILE *, const value_range *);
 extern void extract_range_from_unary_expr (value_range *vr,
 					   enum tree_code code,
 					   tree type,
-					   value_range *vr0_,
+					   const value_range *vr0_,
 					   tree op0_type);
 
 extern bool vrp_operand_equal_p (const_tree, const_tree);
@@ -96,28 +96,28 @@ extern void set_and_canonicalize_value_range (value_range *,
 					      enum value_range_type,
 					      tree, tree, bitmap);
 extern bool vrp_bitmap_equal_p (const_bitmap, const_bitmap);
-extern tree value_range_constant_singleton (value_range *);
-extern bool symbolic_range_p (value_range *);
+extern tree value_range_constant_singleton (const value_range *);
+extern bool symbolic_range_p (const value_range *);
 extern int compare_values (tree, tree);
 extern int compare_values_warnv (tree, tree, bool *);
 extern bool vrp_val_is_min (const_tree);
 extern bool vrp_val_is_max (const_tree);
-extern void copy_value_range (value_range *, value_range *);
+extern void copy_value_range (value_range *, const value_range *);
 extern void set_value_range_to_value (value_range *, tree, bitmap);
 extern void extract_range_from_binary_expr_1 (value_range *, enum tree_code,
-					      tree, value_range *,
-					      value_range *);
+					      tree, const value_range *,
+					      const value_range *);
 extern tree vrp_val_min (const_tree);
 extern tree vrp_val_max (const_tree);
 extern void set_value_range_to_null (value_range *, tree);
-extern bool range_int_cst_p (value_range *);
+extern bool range_int_cst_p (const value_range *);
 extern int operand_less_p (tree, tree);
 extern bool find_case_label_range (gswitch *, tree, tree, size_t *, size_t *);
 extern bool find_case_label_index (gswitch *, size_t, tree, size_t *);
-extern bool vrp_set_zero_nonzero_bits (const tree, value_range *,
+extern bool vrp_set_zero_nonzero_bits (const tree, const value_range *,
 				       wide_int *, wide_int *);
 extern bool overflow_comparison_p (tree_code, tree, tree, bool, tree *);
-extern bool range_int_cst_singleton_p (value_range *);
+extern bool range_int_cst_singleton_p (const value_range *);
 extern int value_inside_range (tree, tree, tree);
 extern tree get_single_symbol (tree, bool *, tree *);
 extern void maybe_set_nonzero_bits (edge, tree);