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c-common.c (unsigned_conversion_warning, [...]): Use new hooks. 

* c-common.c (unsigned_conversion_warning, convert_and_check,
	unsigned_type, signed_type, shorten_compare,
	c_common_get_alias_set, c_common_nodes_and_builtins): Use new hooks.
	(unsigned_type, signed_type, signed_or_unsigned_type): Rename.
	* c-common.h (unsigned_type, signed_type, signed_or_unsigned_type):
	New.
	* c-decl.c (grokdeclarator): Update.
	* c-format.c (check_format_types): Update.
	* c-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
	* c-typeck.c (build_binary_op, convert_for_assignment): Update.
	* convert.c (convert_to_integer): Use new hooks.
	* expmed.c (make_tree): Use new hooks.
	* expr.c (store_expr): Use new hooks.
	* fold-const.c (operand_equal_for_comparison_p, build_range_check,
	all_ones_mask_p, unextend, fold): Use new hooks.
	* langhooks.h (struct lang_hooks_for_types): New hooks.
	* tree.h (signed_or_unsigned_type, signed_type,
	unsigned_type): Remove.
ada:
	* gigi.h (unsigned_type, signed_type, signed_or_unsigned_type):
	Rename.
	* misc.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
	* trans.c (tree_transform, convert_with_check): Update.
	* utils.c (unsigned_type, signed_type, signed_or_unsigned_type):
	Rename.
cp:
	* cp-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
	* decl.c (grokdeclarator): Update.
	* mangle.c (write_integer_cst): Update.
	* typeck.c (build_binary_op): Update.
f:
	* com.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
	(unsigned_type, signed_type, signed_or_unsigned_type): Rename.
java:
	* expr.c (build_java_binop): Update.
	* java-tree.h (java_signed_type, java_unsigned_type,
	java_signed_or_unsigned_type): Update.
	* lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
	* parse.y (patch_binop): Update.
	* typeck.c (signed_or_unsigned_type, unsigned_type,
	signed_type): Update.
objc:
	* objc-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
	LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.

From-SVN: r51684
This commit is contained in:
Neil Booth 2002-04-01 08:46:10 +00:00 committed by Neil Booth
parent c7a39ea995
commit ceef8ce4b4
33 changed files with 262 additions and 148 deletions
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25
gcc/ChangeLog
View File

@ -1,3 +1,28 @@
2002-04-01 Neil Booth <neil@daikokuya.demon.co.uk>
* c-common.c (unsigned_conversion_warning, convert_and_check,
unsigned_type, signed_type, shorten_compare,
c_common_get_alias_set, c_common_nodes_and_builtins): Use new hooks.
(unsigned_type, signed_type, signed_or_unsigned_type): Rename.
* c-common.h (unsigned_type, signed_type, signed_or_unsigned_type):
New.
* c-decl.c (grokdeclarator): Update.
* c-format.c (check_format_types): Update.
* c-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
* c-typeck.c (build_binary_op, convert_for_assignment): Update.
* convert.c (convert_to_integer): Use new hooks.
* expmed.c (make_tree): Use new hooks.
* expr.c (store_expr): Use new hooks.
* fold-const.c (operand_equal_for_comparison_p, build_range_check,
all_ones_mask_p, unextend, fold): Use new hooks.
* langhooks.h (struct lang_hooks_for_types): New hooks.
* tree.h (signed_or_unsigned_type, signed_type,
unsigned_type): Remove.
objc:
* objc-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
2002-03-31 Richard Henderson <rth@redhat.com>
* config/ia64/unwind-ia64.c (alloc_spill_area): Fix offset.

10
gcc/ada/ChangeLog
View File

@ -1,3 +1,13 @@
2002-04-01 Neil Booth <neil@daikokuya.demon.co.uk>
* gigi.h (unsigned_type, signed_type, signed_or_unsigned_type):
Rename.
* misc.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
* trans.c (tree_transform, convert_with_check): Update.
* utils.c (unsigned_type, signed_type, signed_or_unsigned_type):
Rename.
2002-03-31 Neil Booth <neil@daikokuya.demon.co.uk>
* gigi.h (finish_incomplete_decl): Rename.

6
gcc/ada/gigi.h
View File

@ -430,14 +430,14 @@ extern tree gnat_type_for_size PARAMS ((unsigned, int));
extern tree gnat_type_for_mode PARAMS ((enum machine_mode, int));
/* Return the unsigned version of a TYPE_NODE, a scalar type. */
extern tree unsigned_type PARAMS ((tree));
extern tree gnat_unsigned_type PARAMS ((tree));
/* Return the signed version of a TYPE_NODE, a scalar type. */
extern tree signed_type PARAMS ((tree));
extern tree gnat_signed_type PARAMS ((tree));
/* Return a type the same as TYPE except unsigned or signed according to
UNSIGNEDP. */
extern tree signed_or_unsigned_type PARAMS ((int, tree));
extern tree gnat_signed_or_unsigned_type PARAMS ((int, tree));
/* This routine is called in tree.c to print an error message for invalid use
of an incomplete type. */

6
gcc/ada/misc.c
View File

@ -124,6 +124,12 @@ static rtx gnat_expand_expr PARAMS ((tree, rtx, enum machine_mode,
#define LANG_HOOKS_TYPE_FOR_MODE gnat_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE gnat_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE gnat_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE gnat_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE gnat_signed_or_unsigned_type
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

14
gcc/ada/trans.c
View File

@ -1348,7 +1348,7 @@ tree_transform (gnat_node)
/* 'Length or 'Range_Length. */
{
tree gnu_compute_type
= signed_or_unsigned_type
= gnat_signed_or_unsigned_type
(0, get_base_type (gnu_result_type));
gnu_result
@ -1867,10 +1867,10 @@ tree_transform (gnat_node)
so we may need to choose a different type. */
if (Nkind (gnat_node) == N_Op_Shift_Right
&& ! TREE_UNSIGNED (gnu_type))
gnu_type = unsigned_type (gnu_type);
gnu_type = gnat_unsigned_type (gnu_type);
else if (Nkind (gnat_node) == N_Op_Shift_Right_Arithmetic
&& TREE_UNSIGNED (gnu_type))
gnu_type = signed_type (gnu_type);
gnu_type = gnat_signed_type (gnu_type);
if (gnu_type != gnu_result_type)
{
@ -4674,17 +4674,17 @@ convert_with_check (gnat_type, gnu_expr, overflow_p, range_p, truncate_p)
comparing them properly. Likewise, convert the upper bounds
to unsigned types. */
if (INTEGRAL_TYPE_P (gnu_in_basetype) && TREE_UNSIGNED (gnu_in_basetype))
gnu_in_lb = convert (signed_type (gnu_in_basetype), gnu_in_lb);
gnu_in_lb = convert (gnat_signed_type (gnu_in_basetype), gnu_in_lb);
if (INTEGRAL_TYPE_P (gnu_in_basetype)
&& ! TREE_UNSIGNED (gnu_in_basetype))
gnu_in_ub = convert (unsigned_type (gnu_in_basetype), gnu_in_ub);
gnu_in_ub = convert (gnat_unsigned_type (gnu_in_basetype), gnu_in_ub);
if (INTEGRAL_TYPE_P (gnu_base_type) && TREE_UNSIGNED (gnu_base_type))
gnu_out_lb = convert (signed_type (gnu_base_type), gnu_out_lb);
gnu_out_lb = convert (gnat_signed_type (gnu_base_type), gnu_out_lb);
if (INTEGRAL_TYPE_P (gnu_base_type) && ! TREE_UNSIGNED (gnu_base_type))
gnu_out_ub = convert (unsigned_type (gnu_base_type), gnu_out_ub);
gnu_out_ub = convert (gnat_unsigned_type (gnu_base_type), gnu_out_ub);
/* Check each bound separately and only if the result bound
is tighter than the bound on the input type. Note that all the

6
gcc/ada/utils.c
View File

@ -2022,7 +2022,7 @@ gnat_type_for_mode (mode, unsignedp)
/* Return the unsigned version of a TYPE_NODE, a scalar type. */
tree
unsigned_type (type_node)
gnat_unsigned_type (type_node)
tree type_node;
{
tree type = gnat_type_for_size (TYPE_PRECISION (type_node), 1);
@ -2046,7 +2046,7 @@ unsigned_type (type_node)
/* Return the signed version of a TYPE_NODE, a scalar type. */
tree
signed_type (type_node)
gnat_signed_type (type_node)
tree type_node;
{
tree type = gnat_type_for_size (TYPE_PRECISION (type_node), 0);
@ -2071,7 +2071,7 @@ signed_type (type_node)
UNSIGNEDP. */
tree
signed_or_unsigned_type (unsignedp, type)
gnat_signed_or_unsigned_type (unsignedp, type)
int unsignedp;
tree type;
{

62
gcc/c-common.c
View File

@ -757,13 +757,15 @@ void
unsigned_conversion_warning (result, operand)
tree result, operand;
{
tree type = TREE_TYPE (result);
if (TREE_CODE (operand) == INTEGER_CST
&& TREE_CODE (TREE_TYPE (result)) == INTEGER_TYPE
&& TREE_UNSIGNED (TREE_TYPE (result))
&& TREE_CODE (type) == INTEGER_TYPE
&& TREE_UNSIGNED (type)
&& skip_evaluation == 0
&& !int_fits_type_p (operand, TREE_TYPE (result)))
&& !int_fits_type_p (operand, type))
{
if (!int_fits_type_p (operand, signed_type (TREE_TYPE (result))))
if (!int_fits_type_p (operand, c_common_signed_type (type)))
/* This detects cases like converting -129 or 256 to unsigned char. */
warning ("large integer implicitly truncated to unsigned type");
else if (warn_conversion)
@ -812,7 +814,8 @@ convert_and_check (type, expr)
don't warn unless pedantic. */
if ((pedantic
|| TREE_UNSIGNED (type)
|| ! constant_fits_type_p (expr, unsigned_type (type)))
|| ! constant_fits_type_p (expr,
c_common_unsigned_type (type)))
&& skip_evaluation == 0)
warning ("overflow in implicit constant conversion");
}
@ -1435,7 +1438,7 @@ c_common_type_for_mode (mode, unsignedp)
/* Return an unsigned type the same as TYPE in other respects. */
tree
unsigned_type (type)
c_common_unsigned_type (type)
tree type;
{
tree type1 = TYPE_MAIN_VARIANT (type);
@ -1464,13 +1467,13 @@ unsigned_type (type)
if (type1 == intQI_type_node)
return unsigned_intQI_type_node;
return signed_or_unsigned_type (1, type);
return c_common_signed_or_unsigned_type (1, type);
}
/* Return a signed type the same as TYPE in other respects. */
tree
signed_type (type)
c_common_signed_type (type)
tree type;
{
tree type1 = TYPE_MAIN_VARIANT (type);
@ -1499,14 +1502,14 @@ signed_type (type)
if (type1 == unsigned_intQI_type_node)
return intQI_type_node;
return signed_or_unsigned_type (0, type);
return c_common_signed_or_unsigned_type (0, type);
}
/* Return a type the same as TYPE except unsigned or
signed according to UNSIGNEDP. */
tree
signed_or_unsigned_type (unsignedp, type)
c_common_signed_or_unsigned_type (unsignedp, type)
int unsignedp;
tree type;
{
@ -1755,7 +1758,8 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
int unsignedp = TREE_UNSIGNED (*restype_ptr);
tree val;
type = signed_or_unsigned_type (unsignedp0, TREE_TYPE (primop0));
type = c_common_signed_or_unsigned_type (unsignedp0,
TREE_TYPE (primop0));
/* If TYPE is an enumeration, then we need to get its min/max
values from it's underlying integral type, not the enumerated
@ -1767,7 +1771,7 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
minval = TYPE_MIN_VALUE (type);
if (unsignedp && !unsignedp0)
*restype_ptr = signed_type (*restype_ptr);
*restype_ptr = c_common_signed_type (*restype_ptr);
if (TREE_TYPE (primop1) != *restype_ptr)
primop1 = convert (*restype_ptr, primop1);
@ -1864,7 +1868,7 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
default:
break;
}
type = unsigned_type (type);
type = c_common_unsigned_type (type);
}
if (!max_gt && !unsignedp0 && TREE_CODE (primop0) != INTEGER_CST)
@ -1916,15 +1920,19 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
&& TYPE_PRECISION (TREE_TYPE (primop1)) < TYPE_PRECISION (*restype_ptr))
{
type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1));
type = signed_or_unsigned_type (unsignedp0
|| TREE_UNSIGNED (*restype_ptr),
type);
type = c_common_signed_or_unsigned_type (unsignedp0
|| TREE_UNSIGNED (*restype_ptr),
type);
/* Make sure shorter operand is extended the right way
to match the longer operand. */
primop0 = convert (signed_or_unsigned_type (unsignedp0, TREE_TYPE (primop0)),
primop0);
primop1 = convert (signed_or_unsigned_type (unsignedp1, TREE_TYPE (primop1)),
primop1);
primop0
= convert (c_common_signed_or_unsigned_type (unsignedp0,
TREE_TYPE (primop0)),
primop0);
primop1
= convert (c_common_signed_or_unsigned_type (unsignedp1,
TREE_TYPE (primop1)),
primop1);
}
else
{
@ -1947,7 +1955,7 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
so suppress the warning. */
if (extra_warnings && !in_system_header
&& ! (TREE_CODE (primop0) == INTEGER_CST
&& ! TREE_OVERFLOW (convert (signed_type (type),
&& ! TREE_OVERFLOW (convert (c_common_signed_type (type),
primop0))))
warning ("comparison of unsigned expression >= 0 is always true");
value = boolean_true_node;
@ -1956,7 +1964,7 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
case LT_EXPR:
if (extra_warnings && !in_system_header
&& ! (TREE_CODE (primop0) == INTEGER_CST
&& ! TREE_OVERFLOW (convert (signed_type (type),
&& ! TREE_OVERFLOW (convert (c_common_signed_type (type),
primop0))))
warning ("comparison of unsigned expression < 0 is always false");
value = boolean_false_node;
@ -2365,7 +2373,7 @@ c_common_get_alias_set (t)
variant as canonical. */
if (TREE_CODE (t) == INTEGER_TYPE && TREE_UNSIGNED (t))
{
tree t1 = signed_type (t);
tree t1 = c_common_signed_type (t);
/* t1 == t can happen for boolean nodes which are always unsigned. */
if (t1 != t)
@ -2621,7 +2629,7 @@ c_common_nodes_and_builtins ()
and this must agree, even if long and int are the same size. */
c_size_type_node =
TREE_TYPE (identifier_global_value (get_identifier (SIZE_TYPE)));
signed_size_type_node = signed_type (c_size_type_node);
signed_size_type_node = c_common_signed_type (c_size_type_node);
set_sizetype (c_size_type_node);
build_common_tree_nodes_2 (flag_short_double);
@ -2690,8 +2698,8 @@ c_common_nodes_and_builtins ()
}
else
{
signed_wchar_type_node = signed_type (wchar_type_node);
unsigned_wchar_type_node = unsigned_type (wchar_type_node);
signed_wchar_type_node = c_common_signed_type (wchar_type_node);
unsigned_wchar_type_node = c_common_unsigned_type (wchar_type_node);
}
/* This is for wide string constants. */
@ -2709,7 +2717,7 @@ c_common_nodes_and_builtins ()
default_function_type = build_function_type (integer_type_node, NULL_TREE);
ptrdiff_type_node
= TREE_TYPE (identifier_global_value (get_identifier (PTRDIFF_TYPE)));
unsigned_ptrdiff_type_node = unsigned_type (ptrdiff_type_node);
unsigned_ptrdiff_type_node = c_common_unsigned_type (ptrdiff_type_node);
(*lang_hooks.decls.pushdecl)
(build_decl (TYPE_DECL, get_identifier ("__builtin_va_list"),

3
gcc/c-common.h
View File

@ -510,6 +510,9 @@ extern void c_common_insert_default_attributes PARAMS ((tree));
extern tree c_common_type_for_mode PARAMS ((enum machine_mode,
int));
extern tree c_common_type_for_size PARAMS ((unsigned int, int));
extern tree c_common_unsigned_type PARAMS ((tree));
extern tree c_common_signed_type PARAMS ((tree));
extern tree c_common_signed_or_unsigned_type PARAMS ((int, tree));
extern void c_apply_type_quals_to_decl PARAMS ((int, tree));
extern tree c_sizeof PARAMS ((tree));
extern tree c_alignof PARAMS ((tree));

4
gcc/c-decl.c
View File

@ -4160,7 +4160,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
else if (type == char_type_node)
type = unsigned_char_type_node;
else if (typedef_decl)
type = unsigned_type (type);
type = c_common_unsigned_type (type);
else
type = unsigned_type_node;
}
@ -4370,7 +4370,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
tree itype = NULL_TREE;
tree size = TREE_OPERAND (declarator, 1);
/* The index is a signed object `sizetype' bits wide. */
tree index_type = signed_type (sizetype);
tree index_type = c_common_signed_type (sizetype);
array_ptr_quals = TREE_TYPE (declarator);
array_parm_static = TREE_STATIC (declarator);

4
gcc/c-format.c
View File

@ -2386,8 +2386,8 @@ check_format_types (status, types)
&& TREE_CODE (cur_type) == INTEGER_TYPE
&& (! pedantic || i == 0 || (i == 1 && char_type_flag))
&& (TREE_UNSIGNED (wanted_type)
? wanted_type == unsigned_type (cur_type)
: wanted_type == signed_type (cur_type)))
? wanted_type == c_common_unsigned_type (cur_type)
: wanted_type == c_common_signed_type (cur_type)))
continue;
/* Likewise, "signed char", "unsigned char" and "char" are
equivalent but the above test won't consider them equivalent. */

6
gcc/c-lang.c
View File

@ -88,6 +88,12 @@ static void c_post_options PARAMS ((void));
#define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
/* ### When changing hooks, consider if ObjC needs changing too!! ### */

29
gcc/c-typeck.c
View File

@ -2385,22 +2385,24 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
&& unsigned0 == unsigned1
&& (unsigned0 || !uns))
result_type
= signed_or_unsigned_type (unsigned0,
common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)));
= c_common_signed_or_unsigned_type
(unsigned0, common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)));
else if (TREE_CODE (arg0) == INTEGER_CST
&& (unsigned1 || !uns)
&& (TYPE_PRECISION (TREE_TYPE (arg1))
< TYPE_PRECISION (result_type))
&& (type = signed_or_unsigned_type (unsigned1,
TREE_TYPE (arg1)),
&& (type
= c_common_signed_or_unsigned_type (unsigned1,
TREE_TYPE (arg1)),
int_fits_type_p (arg0, type)))
result_type = type;
else if (TREE_CODE (arg1) == INTEGER_CST
&& (unsigned0 || !uns)
&& (TYPE_PRECISION (TREE_TYPE (arg0))
< TYPE_PRECISION (result_type))
&& (type = signed_or_unsigned_type (unsigned0,
TREE_TYPE (arg0)),
&& (type
= c_common_signed_or_unsigned_type (unsigned0,
TREE_TYPE (arg0)),
int_fits_type_p (arg1, type)))
result_type = type;
}
@ -2426,7 +2428,8 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
{
/* Do an unsigned shift if the operand was zero-extended. */
result_type
= signed_or_unsigned_type (unsigned_arg, TREE_TYPE (arg0));
= c_common_signed_or_unsigned_type (unsigned_arg,
TREE_TYPE (arg0));
/* Convert value-to-be-shifted to that type. */
if (TREE_TYPE (op0) != result_type)
op0 = convert (result_type, op0);
@ -2504,15 +2507,17 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
would fit in the result if the result were signed. */
else if (TREE_CODE (uop) == INTEGER_CST
&& (resultcode == EQ_EXPR || resultcode == NE_EXPR)
&& int_fits_type_p (uop, signed_type (result_type)))
&& int_fits_type_p
(uop, c_common_signed_type (result_type)))
/* OK */;
/* Do not warn if the unsigned quantity is an enumeration
constant and its maximum value would fit in the result
if the result were signed. */
else if (TREE_CODE (uop) == INTEGER_CST
&& TREE_CODE (TREE_TYPE (uop)) == ENUMERAL_TYPE
&& int_fits_type_p (TYPE_MAX_VALUE (TREE_TYPE(uop)),
signed_type (result_type)))
&& int_fits_type_p
(TYPE_MAX_VALUE (TREE_TYPE(uop)),
c_common_signed_type (result_type)))
/* OK */;
else
warning ("comparison between signed and unsigned");
@ -4161,8 +4166,8 @@ convert_for_assignment (type, rhs, errtype, fundecl, funname, parmnum)
Meanwhile, the lhs target must have all the qualifiers of the rhs. */
if (VOID_TYPE_P (ttl) || VOID_TYPE_P (ttr)
|| comp_target_types (type, rhstype)
|| (unsigned_type (TYPE_MAIN_VARIANT (ttl))
== unsigned_type (TYPE_MAIN_VARIANT (ttr))))
|| (c_common_unsigned_type (TYPE_MAIN_VARIANT (ttl))
== c_common_unsigned_type (TYPE_MAIN_VARIANT (ttr))))
{
if (pedantic
&& ((VOID_TYPE_P (ttl) && TREE_CODE (ttr) == FUNCTION_TYPE)

16
gcc/convert.c
View File

@ -316,10 +316,12 @@ convert_to_integer (type, expr)
unsigned then can safely do the work as unsigned.
And we may need to do it as unsigned
if we truncate to the original size. */
typex = ((TREE_UNSIGNED (TREE_TYPE (expr))
|| (TREE_UNSIGNED (TREE_TYPE (arg0))
&& TREE_UNSIGNED (TREE_TYPE (arg1))))
? unsigned_type (typex) : signed_type (typex));
if (TREE_UNSIGNED (TREE_TYPE (expr))
|| (TREE_UNSIGNED (TREE_TYPE (arg0))
&& TREE_UNSIGNED (TREE_TYPE (arg1))))
typex = (*lang_hooks.types.unsigned_type) (typex);
else
typex = (*lang_hooks.types.signed_type) (typex);
return convert (type,
fold (build (ex_form, typex,
convert (typex, arg0),
@ -350,8 +352,10 @@ convert_to_integer (type, expr)
{
/* Don't do unsigned arithmetic where signed was wanted,
or vice versa. */
typex = (TREE_UNSIGNED (TREE_TYPE (expr))
? unsigned_type (typex) : signed_type (typex));
if (TREE_UNSIGNED (TREE_TYPE (expr)))
typex = (*lang_hooks.types.unsigned_type) (typex);
else
typex = (*lang_hooks.types.signed_type) (typex);
return convert (type,
fold (build1 (ex_form, typex,
convert (typex,

8
gcc/cp/ChangeLog
View File

@ -1,3 +1,11 @@
2002-04-01 Neil Booth <neil@daikokuya.demon.co.uk>
* cp-lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
* decl.c (grokdeclarator): Update.
* mangle.c (write_integer_cst): Update.
* typeck.c (build_binary_op): Update.
2002-03-31 Neil Booth <neil@daikokuya.demon.co.uk>
* cp-lang.c (LANG_HOOKS_UNSAFE_FOR_REEVAL): Redefine.

6
gcc/cp/cp-lang.c
View File

@ -119,6 +119,12 @@ static bool ok_to_generate_alias_set_for_type PARAMS ((tree));
#define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
/* Each front end provides its own hooks, for toplev.c. */
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

2
gcc/cp/decl.c
View File

@ -10325,7 +10325,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
else if (type == char_type_node)
type = unsigned_char_type_node;
else if (typedef_decl)
type = unsigned_type (type);
type = c_common_unsigned_type (type);
else
type = unsigned_type_node;
}

2
gcc/cp/mangle.c
View File

@ -1111,7 +1111,7 @@ write_integer_cst (cst)
chunk *= chunk;
}
type = signed_or_unsigned_type (1, TREE_TYPE (cst));
type = c_common_signed_or_unsigned_type (1, TREE_TYPE (cst));
base = build_int_2 (chunk, 0);
n = build_int_2 (TREE_INT_CST_LOW (cst), TREE_INT_CST_HIGH (cst));
TREE_TYPE (n) = TREE_TYPE (base) = type;

26
gcc/cp/typeck.c
View File

@ -3782,24 +3782,22 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
== TYPE_PRECISION (TREE_TYPE (arg0)))
&& unsigned0 == unsigned1
&& (unsigned0 || !uns))
result_type
= signed_or_unsigned_type (unsigned0,
common_type (TREE_TYPE (arg0),
TREE_TYPE (arg1)));
result_type = c_common_signed_or_unsigned_type
(unsigned0, common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)));
else if (TREE_CODE (arg0) == INTEGER_CST
&& (unsigned1 || !uns)
&& (TYPE_PRECISION (TREE_TYPE (arg1))
< TYPE_PRECISION (result_type))
&& (type = signed_or_unsigned_type (unsigned1,
TREE_TYPE (arg1)),
&& (type = c_common_signed_or_unsigned_type
(unsigned1, TREE_TYPE (arg1)),
int_fits_type_p (arg0, type)))
result_type = type;
else if (TREE_CODE (arg1) == INTEGER_CST
&& (unsigned0 || !uns)
&& (TYPE_PRECISION (TREE_TYPE (arg0))
< TYPE_PRECISION (result_type))
&& (type = signed_or_unsigned_type (unsigned0,
TREE_TYPE (arg0)),
&& (type = c_common_signed_or_unsigned_type
(unsigned0, TREE_TYPE (arg0)),
int_fits_type_p (arg1, type)))
result_type = type;
}
@ -3834,8 +3832,8 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
{
/* Do an unsigned shift if the operand was zero-extended. */
result_type
= signed_or_unsigned_type (unsigned_arg,
TREE_TYPE (arg0));
= c_common_signed_or_unsigned_type (unsigned_arg,
TREE_TYPE (arg0));
/* Convert value-to-be-shifted to that type. */
if (TREE_TYPE (op0) != result_type)
op0 = cp_convert (result_type, op0);
@ -3908,11 +3906,11 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
not use the most significant bit of result_type. */
else if ((resultcode == EQ_EXPR || resultcode == NE_EXPR)
&& ((op0_signed && TREE_CODE (orig_op1) == INTEGER_CST
&& int_fits_type_p (orig_op1,
signed_type (result_type)))
&& int_fits_type_p (orig_op1, c_common_signed_type
(result_type)))
|| (op1_signed && TREE_CODE (orig_op0) == INTEGER_CST
&& int_fits_type_p (orig_op0,
signed_type (result_type)))))
&& int_fits_type_p (orig_op0, c_common_signed_type
(result_type)))))
/* OK */;
else
warning ("comparison between signed and unsigned integer expressions");

15
gcc/expmed.c
View File

@ -4108,21 +4108,22 @@ make_tree (type, x)
make_tree (type, XEXP (x, 1))));
case LSHIFTRT:
t = (*lang_hooks.types.unsigned_type) (type);
return fold (convert (type,
build (RSHIFT_EXPR, unsigned_type (type),
make_tree (unsigned_type (type),
XEXP (x, 0)),
build (RSHIFT_EXPR, t,
make_tree (t, XEXP (x, 0)),
make_tree (type, XEXP (x, 1)))));
case ASHIFTRT:
t = (*lang_hooks.types.signed_type) (type);
return fold (convert (type,
build (RSHIFT_EXPR, signed_type (type),
make_tree (signed_type (type), XEXP (x, 0)),
build (RSHIFT_EXPR, t,
make_tree (t, XEXP (x, 0)),
make_tree (type, XEXP (x, 1)))));
case DIV:
if (TREE_CODE (type) != REAL_TYPE)
t = signed_type (type);
t = (*lang_hooks.types.signed_type) (type);
else
t = type;
@ -4131,7 +4132,7 @@ make_tree (type, x)
make_tree (t, XEXP (x, 0)),
make_tree (t, XEXP (x, 1)))));
case UDIV:
t = unsigned_type (type);
t = (*lang_hooks.types.unsigned_type) (type);
return fold (convert (type,
build (TRUNC_DIV_EXPR, t,
make_tree (t, XEXP (x, 0)),

8
gcc/expr.c
View File

@ -4021,11 +4021,9 @@ store_expr (exp, target, want_value)
{
if (TREE_UNSIGNED (TREE_TYPE (exp))
!= SUBREG_PROMOTED_UNSIGNED_P (target))
exp
= convert
(signed_or_unsigned_type (SUBREG_PROMOTED_UNSIGNED_P (target),
TREE_TYPE (exp)),
exp);
exp = convert
((*lang_hooks.types.signed_or_unsigned_type)
(SUBREG_PROMOTED_UNSIGNED_P (target), TREE_TYPE (exp)), exp);
exp = convert ((*lang_hooks.types.type_for_mode)
(GET_MODE (SUBREG_REG (target)),

6
gcc/f/ChangeLog
View File

@ -1,3 +1,9 @@
Mon Apr 1 09:59:53 2002 Neil Booth <neil@daikokuya.demon.co.uk>
* com.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
(unsigned_type, signed_type, signed_or_unsigned_type): Rename.
Sun Mar 31 23:50:22 2002 Neil Booth <neil@daikokuya.demon.co.uk>
* com.c (lang_print_error_function): Rename.

22
gcc/f/com.c
View File

@ -263,6 +263,9 @@ struct _ffecom_concat_list_
static tree ffe_type_for_mode PARAMS ((enum machine_mode, int));
static tree ffe_type_for_size PARAMS ((unsigned int, int));
static tree ffe_unsigned_type PARAMS ((tree));
static tree ffe_signed_type PARAMS ((tree));
static tree ffe_signed_or_unsigned_type PARAMS ((int, tree));
static void ffecom_init_decl_processing PARAMS ((void));
static tree ffecom_arglist_expr_ (const char *argstring, ffebld args);
static tree ffecom_widest_expr_type_ (ffebld list);
@ -14230,10 +14233,17 @@ static void ffe_mark_tree (tree);
#define LANG_HOOKS_DECL_PRINTABLE_NAME ffe_printable_name
#undef LANG_HOOKS_PRINT_ERROR_FUNCTION
#define LANG_HOOKS_PRINT_ERROR_FUNCTION ffe_print_error_function
#undef LANG_HOOKS_TYPE_FOR_MODE
#define LANG_HOOKS_TYPE_FOR_MODE ffe_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE ffe_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE ffe_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE ffe_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE ffe_signed_or_unsigned_type
/* We do not wish to use alias-set based aliasing at all. Used in the
extreme (every object with its own set, with equivalences recorded) it
@ -14745,8 +14755,8 @@ set_block (block)
BLOCK_SUBBLOCKS (block));
}
tree
signed_or_unsigned_type (unsignedp, type)
static tree
ffe_signed_or_unsigned_type (unsignedp, type)
int unsignedp;
tree type;
{
@ -14773,8 +14783,8 @@ signed_or_unsigned_type (unsignedp, type)
return type2;
}
tree
signed_type (type)
static tree
ffe_signed_type (type)
tree type;
{
tree type1 = TYPE_MAIN_VARIANT (type);
@ -15093,8 +15103,8 @@ ffe_type_for_size (bits, unsignedp)
return 0;
}
tree
unsigned_type (type)
static tree
ffe_unsigned_type (type)
tree type;
{
tree type1 = TYPE_MAIN_VARIANT (type);

50
gcc/fold-const.c
View File

@ -1937,9 +1937,8 @@ operand_equal_for_comparison_p (arg0, arg1, other)
/* Make sure shorter operand is extended the right way
to match the longer operand. */
primarg1 = convert (signed_or_unsigned_type (unsignedp1,
TREE_TYPE (primarg1)),
primarg1);
primarg1 = convert ((*lang_hooks.types.signed_or_unsigned_type)
(unsignedp1, TREE_TYPE (primarg1)), primarg1);
if (operand_equal_p (arg0, convert (type, primarg1), 0))
return 1;
@ -2622,7 +2621,7 @@ all_ones_mask_p (mask, size)
tree tmask;
tmask = build_int_2 (~0, ~0);
TREE_TYPE (tmask) = signed_type (type);
TREE_TYPE (tmask) = (*lang_hooks.types.signed_type) (type);
force_fit_type (tmask, 0);
return
tree_int_cst_equal (mask,
@ -3063,7 +3062,7 @@ build_range_check (type, exp, in_p, low, high)
else if (integer_zerop (low))
{
utype = unsigned_type (etype);
utype = (*lang_hooks.types.unsigned_type) (etype);
return build_range_check (type, convert (utype, exp), 1, 0,
convert (utype, high));
}
@ -3316,7 +3315,7 @@ unextend (c, p, unsignedp, mask)
zero or one, and the conversion to a signed type can never overflow.
We could get an overflow if this conversion is done anywhere else. */
if (TREE_UNSIGNED (type))
temp = convert (signed_type (type), temp);
temp = convert ((*lang_hooks.types.signed_type) (type), temp);
temp = const_binop (LSHIFT_EXPR, temp, size_int (modesize - 1), 0);
temp = const_binop (RSHIFT_EXPR, temp, size_int (modesize - p - 1), 0);
@ -5939,7 +5938,7 @@ fold (expr)
|| TREE_CODE (arg0) == ROUND_MOD_EXPR)
&& integer_pow2p (TREE_OPERAND (arg0, 1)))
{
tree newtype = unsigned_type (TREE_TYPE (arg0));
tree newtype = (*lang_hooks.types.unsigned_type) (TREE_TYPE (arg0));
tree newmod = build (TREE_CODE (arg0), newtype,
convert (newtype, TREE_OPERAND (arg0, 0)),
convert (newtype, TREE_OPERAND (arg0, 1)));
@ -6114,25 +6113,18 @@ fold (expr)
&& TREE_UNSIGNED (TREE_TYPE (arg1))
/* signed_type does not work on pointer types. */
&& INTEGRAL_TYPE_P (TREE_TYPE (arg1)))
switch (TREE_CODE (t))
{
case LE_EXPR:
return fold (build (GE_EXPR, type,
convert (signed_type (TREE_TYPE (arg0)),
arg0),
convert (signed_type (TREE_TYPE (arg1)),
integer_zero_node)));
case GT_EXPR:
return fold (build (LT_EXPR, type,
convert (signed_type (TREE_TYPE (arg0)),
arg0),
convert (signed_type (TREE_TYPE (arg1)),
integer_zero_node)));
default:
break;
}
{
if (TREE_CODE (t) == LE_EXPR || TREE_CODE (t) == GT_EXPR)
{
tree st0, st1;
st0 = (*lang_hooks.types.signed_type) (TREE_TYPE (arg0));
st1 = (*lang_hooks.types.signed_type) (TREE_TYPE (arg1));
return fold
(build (TREE_CODE (t) == LE_EXPR ? GE_EXPR: LT_EXPR,
type, convert (st0, arg0),
convert (st1, integer_zero_node)));
}
}
else if (TREE_INT_CST_HIGH (arg1) == 0
&& (TREE_INT_CST_LOW (arg1)
== ((unsigned HOST_WIDE_INT) 2 << (width - 1)) - 1)
@ -6506,14 +6498,16 @@ fold (expr)
case GE_EXPR:
case GT_EXPR:
if (TREE_UNSIGNED (TREE_TYPE (arg1)))
arg1 = convert (signed_type (TREE_TYPE (arg1)), arg1);
arg1 = convert ((*lang_hooks.types.signed_type)
(TREE_TYPE (arg1)), arg1);
return pedantic_non_lvalue
(convert (type, fold (build1 (ABS_EXPR,
TREE_TYPE (arg1), arg1))));
case LE_EXPR:
case LT_EXPR:
if (TREE_UNSIGNED (TREE_TYPE (arg1)))
arg1 = convert (signed_type (TREE_TYPE (arg1)), arg1);
arg1 = convert ((lang_hooks.types.signed_type)
(TREE_TYPE (arg1)), arg1);
return pedantic_non_lvalue
(negate_expr (convert (type,
fold (build1 (ABS_EXPR,

11
gcc/java/ChangeLog
View File

@ -1,3 +1,14 @@
2002-04-01 Neil Booth <neil@daikokuya.demon.co.uk>
* expr.c (build_java_binop): Update.
* java-tree.h (java_signed_type, java_unsigned_type,
java_signed_or_unsigned_type): Update.
* lang.c (LANG_HOOKS_SIGNED_TYPE, LANG_HOOKS_UNSIGNED_TYPE,
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): New.
* parse.y (patch_binop): Update.
* typeck.c (signed_or_unsigned_type, unsigned_type,
signed_type): Update.
2002-03-31 Neil Booth <neil@daikokuya.demon.co.uk>
* lang.c (LANG_HOOKS_PRINT_ERROR_FUNCTION): Redefine.

2
gcc/java/expr.c
View File

@ -1395,7 +1395,7 @@ build_java_binop (op, type, arg1, arg2)
{
case URSHIFT_EXPR:
{
tree u_type = unsigned_type (type);
tree u_type = java_unsigned_type (type);
arg1 = convert (u_type, arg1);
arg1 = build_java_binop (RSHIFT_EXPR, u_type, arg1, arg2);
return convert (type, arg1);

3
gcc/java/java-tree.h
View File

@ -1041,6 +1041,9 @@ extern void java_parse_file PARAMS ((void));
extern void java_mark_tree PARAMS ((tree));
extern tree java_type_for_mode PARAMS ((enum machine_mode, int));
extern tree java_type_for_size PARAMS ((unsigned int, int));
extern tree java_unsigned_type PARAMS ((tree));
extern tree java_signed_type PARAMS ((tree));
extern tree java_signed_or_unsigned_type PARAMS ((int, tree));
extern void add_assume_compiled PARAMS ((const char *, int));
extern tree lookup_class PARAMS ((tree));
extern tree lookup_java_constructor PARAMS ((tree, tree));

7
gcc/java/lang.c
View File

@ -237,10 +237,17 @@ static int dependency_tracking = 0;
#define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
#undef LANG_HOOKS_PRINT_ERROR_FUNCTION
#define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
#undef LANG_HOOKS_TYPE_FOR_MODE
#define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE java_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE java_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE java_signed_or_unsigned_type
/* Each front end provides its own. */
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

2
gcc/java/parse.y
View File

@ -13402,7 +13402,7 @@ patch_binop (node, wfl_op1, wfl_op2)
if (code == URSHIFT_EXPR && ! flag_emit_class_files)
{
tree to_return;
tree utype = unsigned_type (prom_type);
tree utype = java_unsigned_type (prom_type);
op1 = convert (utype, op1);
TREE_SET_CODE (node, RSHIFT_EXPR);
TREE_OPERAND (node, 0) = op1;

11
gcc/java/typeck.c
View File

@ -226,7 +226,7 @@ java_type_for_size (bits, unsignedp)
signed according to UNSIGNEDP. */
tree
signed_or_unsigned_type (unsignedp, type)
java_signed_or_unsigned_type (unsignedp, type)
int unsignedp;
tree type;
{
@ -246,20 +246,19 @@ signed_or_unsigned_type (unsignedp, type)
/* Return a signed type the same as TYPE in other respects. */
tree
signed_type (type)
java_signed_type (type)
tree type;
{
return signed_or_unsigned_type (0, type);
return java_signed_or_unsigned_type (0, type);
}
/* Return an unsigned type the same as TYPE in other respects. */
tree
unsigned_type (type)
java_unsigned_type (type)
tree type;
{
return signed_or_unsigned_type (1, type);
return java_signed_or_unsigned_type (1, type);
}
/* Mark EXP saying that we need to be able to take the

5
gcc/langhooks-def.h
View File

@ -160,7 +160,10 @@ int lhd_tree_dump_type_quals PARAMS ((tree));
#define LANG_HOOKS_FOR_TYPES_INITIALIZER { \
LANG_HOOKS_MAKE_TYPE, \
LANG_HOOKS_TYPE_FOR_MODE, \
LANG_HOOKS_TYPE_FOR_SIZE \
LANG_HOOKS_TYPE_FOR_SIZE, \
LANG_HOOKS_UNSIGNED_TYPE, \
LANG_HOOKS_SIGNED_TYPE, \
LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE \
}
/* Declaration hooks. */

12
gcc/langhooks.h
View File

@ -84,6 +84,18 @@ struct lang_hooks_for_types
/* Given PRECISION and UNSIGNEDP, return a suitable type-tree for an
integer type with at least that precision. */
tree (*type_for_size) PARAMS ((unsigned, int));
/* Given an integer type T, return a type like T but unsigned.
If T is unsigned, the value is T. */
tree (*unsigned_type) PARAMS ((tree));
/* Given an integer type T, return a type like T but signed.
If T is signed, the value is T. */
tree (*signed_type) PARAMS ((tree));
/* Return a type the same as TYPE except unsigned or signed
according to UNSIGNEDP. */
tree (*signed_or_unsigned_type) PARAMS ((int, tree));
};
/* Language hooks related to decls and the symbol table. */

6
gcc/objc/objc-lang.c
View File

@ -84,6 +84,12 @@ static void objc_post_options PARAMS ((void));
#define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
/* Each front end provides its own hooks, for toplev.c. */
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

15
gcc/tree.h
View File

@ -2125,7 +2125,6 @@ extern tree make_signed_type PARAMS ((int));
extern tree make_unsigned_type PARAMS ((int));
extern void initialize_sizetypes PARAMS ((void));
extern void set_sizetype PARAMS ((tree));
extern tree signed_or_unsigned_type PARAMS ((int, tree));
extern void fixup_unsigned_type PARAMS ((tree));
extern tree build_pointer_type PARAMS ((tree));
extern tree build_reference_type PARAMS ((tree));
@ -2607,20 +2606,6 @@ extern tree get_unwidened PARAMS ((tree, tree));
extern tree get_narrower PARAMS ((tree, int *));
/* Given an integer type T, return a type like T but unsigned.
If T is unsigned, the value is T.
The definition of this resides in language-specific code
as the repertoire of available types may vary. */
extern tree unsigned_type PARAMS ((tree));
/* Given an integer type T, return a type like T but signed.
If T is signed, the value is T.
The definition of this resides in language-specific code
as the repertoire of available types may vary. */
extern tree signed_type PARAMS ((tree));
/* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF,
look for nested component-refs or array-refs at constant positions
and find the ultimate containing object, which is returned. */