dbxout.c (dbxout_range_type): Add LOW and HIGH parameters.

	* dbxout.c (dbxout_range_type): Add LOW and HIGH parameters.  Use them
	for bounds.
	(print_int_cst_bounds_in_octal_p): Likewise.
	(dbxout_type): Adjust calls to above functions.  Be prepared to deal
	with subtypes.
	* dwarf2out.c (base_type_die): Likewise.
	(is_subrange_type): Delete.
	(subrange_type_die): Add LOW and HIGH parameters.  Use them for bounds.
	(modified_type_die): Call subrange_type_for_debug_p on subtypes.
	* fold-const.c (fold_truth_not_expr) <CONVERT_EXPR>: Do not strip it if
	the destination type is boolean.
	(build_range_check): Do not special-case subtypes.
	(fold_sign_changed_comparison): Likewise.
	(fold_unary): Likewise.
	* langhooks-def.h (LANG_HOOKS_GET_SUBRANGE_BOUNDS): Define.
	(LANG_HOOKS_FOR_TYPES_INITIALIZER): Add LANG_HOOKS_GET_SUBRANGE_BOUNDS.
	* langhooks.h (lang_hooks_for_types): Add get_subrange_bounds.
	* tree.c (subrange_type_for_debug_p): New predicate based on the former
	is_subrange_type.
	* tree.h (subrange_type_for_debug_p): Declare.
	* tree-chrec.c (avoid_arithmetics_in_type_p): Delete.
	(convert_affine_scev): Remove call to above function.
	(chrec_convert_aggressive): Likewise.
	* tree-ssa.c (useless_type_conversion_p_1): Do not specifically return
	false for conversions involving subtypes.
	* tree-vrp.c (vrp_val_max): Do not special-case subtypes.
	(vrp_val_min): Likewise.
	(needs_overflow_infinity): Likewise.
	(extract_range_from_unary_expr): Likewise.
ada/
	* gcc-interface/ada-tree.h (TYPE_GCC_MIN_VALUE, TYPE_GCC_MAX_VALUE):
	New macros.
	(TYPE_RM_VALUES): Likewise.
	(TYPE_RM_SIZE): Rewrite in terms of TYPE_RM_VALUES.
	(SET_TYPE_RM_SIZE): New macro.
	(TYPE_RM_MIN_VALUE, TYPE_RM_MAX_VALUE): Likewise.
	(SET_TYPE_RM_SIZE, SET_TYPE_RM_MAX_VALUE): Likewise.
	(TYPE_MIN_VALUE, TYPE_MAX_VALUE): Redefine.
	* gcc-interface/gigi.h (create_range_type): Declare.
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Modular_Integer_Type>
	Use SET_TYPE_RM_MAX_VALUE to set the upper bound on the UMT type.
	<E_Signed_Integer_Subtype>: Build a regular integer type first and
	then set the RM bounds.  Use SET_TYPE_RM_SIZE to set the RM size.
	<E_Floating_Point_Subtype>: Build a regular floating-point type first
	and then set the RM bounds.
	<E_Array_Type>: Use create_range_type instead of build_range_type.
	<E_Array_Subtype>: Build a regular integer type first and then set
	the RM bounds for the extra subtype.
	<E_String_Literal_Subtype>: Use create_range_type instead of
	build_range_type.
	<all>: Set the RM bounds for enumeration types and the GCC bounds for
	floating-point types.
	(set_rm_size): Use SET_TYPE_RM_SIZE to set the RM size.
	(make_type_from_size) <INTEGER_TYPE>: Use SET_TYPE_RM_{MIN,MAX}_VALUE
	to set the bounds.  Use SET_TYPE_RM_SIZE to set the RM size.
	(substitute_in_type) <INTEGER_TYPE>: Deal with GCC bounds for domain
	types and with RM bounds for subtypes.
	* gcc-interface/misc.c (LANG_HOOKS_GET_SUBRANGE_BOUNDS): Define.
	(gnat_print_type) <REAL_TYPE>: New case.
	<ENUMERAL_TYPE>: Fall through to above case.
	(gnat_get_subrange_bounds): New function.
	* gcc-interface/trans.c (add_decl_expr): Mark the trees rooted as
	TYPE_RM_MIN_VALUE and TYPE_RM_MAX_VALUE, if any.
	* gcc-interface/utils.c (gnat_init_decl_processing): Use precision 8
	for booleans.  Adjust and use SET_TYPE_RM_SIZE to set the RM size.
	(create_range_type): New function.
	(create_param_decl): Build a regular integer type first and then set
	the RM bounds for the extra subtype.
	(unchecked_convert): Remove kludge for 'Valid.
	* gcc-interface/utils2.c (build_binary_op) <ARRAY_RANGE_REF>: Convert
	the index to sizetype instead of TYPE_DOMAIN.

From-SVN: r147563

1 files changed, 21 insertions, 0 deletions

diff --git a/gcc/ada/gcc-interface/misc.c b/gcc/ada/gcc-interface/misc.c
index 5ccf134..bd6b51a 100644
--- a/gcc/ada/gcc-interface/misc.c
+++ b/gcc/ada/gcc-interface/misc.c
@@ -78,6 +78,7 @@ static int gnat_eh_type_covers		(tree, tree);
 static void gnat_parse_file		(int);
 static void internal_error_function	(const char *, va_list *);
 static tree gnat_type_max_size		(const_tree);
+static void gnat_get_subrange_bounds	(const_tree, tree *, tree *);
 
 /* Definitions for our language-specific hooks.  */
 
@@ -125,6 +126,8 @@ static tree gnat_type_max_size		(const_tree);
 #define LANG_HOOKS_TYPE_FOR_SIZE	gnat_type_for_size
 #undef  LANG_HOOKS_TYPES_COMPATIBLE_P
 #define LANG_HOOKS_TYPES_COMPATIBLE_P	gnat_types_compatible_p
+#undef  LANG_HOOKS_GET_SUBRANGE_BOUNDS
+#define LANG_HOOKS_GET_SUBRANGE_BOUNDS  gnat_get_subrange_bounds
 #undef  LANG_HOOKS_ATTRIBUTE_TABLE
 #define LANG_HOOKS_ATTRIBUTE_TABLE	gnat_internal_attribute_table
 #undef  LANG_HOOKS_BUILTIN_FUNCTION
@@ -513,6 +516,12 @@ gnat_print_type (FILE *file, tree node, int indent)
     case ENUMERAL_TYPE:
     case BOOLEAN_TYPE:
       print_node_brief (file, "RM size", TYPE_RM_SIZE (node), indent + 4);
+
+      /* ... fall through ... */
+
+    case REAL_TYPE:
+      print_node_brief (file, "RM min", TYPE_RM_MIN_VALUE (node), indent + 4);
+      print_node_brief (file, "RM max", TYPE_RM_MAX_VALUE (node), indent + 4);
       break;
 
     case ARRAY_TYPE:
@@ -644,6 +653,18 @@ gnat_type_max_size (const_tree gnu_type)
   return max_unitsize;
 }
 
+/* GNU_TYPE is a subtype of an integral type.  Set LOWVAL to the low bound
+   and HIGHVAL to the high bound, respectively.  */
+
+static void
+gnat_get_subrange_bounds (const_tree gnu_type, tree *lowval, tree *highval)
+{
+  tree min = TYPE_MIN_VALUE (gnu_type);
+  tree max = TYPE_MAX_VALUE (gnu_type);
+  *lowval = TREE_CONSTANT (min) ? min : TYPE_GCC_MIN_VALUE (gnu_type);
+  *highval = TREE_CONSTANT (max) ? max : TYPE_GCC_MAX_VALUE (gnu_type);
+}
+
 /* GNU_TYPE is a type. Determine if it should be passed by reference by
    default.  */