You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* These routines are somewhat language-independent utility function
convert_to_pointer (tree type, tree expr)
{
if (integer_zerop (expr))
- {
- expr = build_int_cst (type, 0);
- return expr;
- }
+ return build_int_cst (type, 0);
switch (TREE_CODE (TREE_TYPE (expr)))
{
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:
case CHAR_TYPE:
- if (TYPE_PRECISION (TREE_TYPE (expr)) == POINTER_SIZE)
- return build1 (CONVERT_EXPR, type, expr);
+ if (TYPE_PRECISION (TREE_TYPE (expr)) != POINTER_SIZE)
+ expr = fold_build1 (NOP_EXPR,
+ lang_hooks.types.type_for_size (POINTER_SIZE, 0),
+ expr);
+ return fold_build1 (CONVERT_EXPR, type, expr);
- return
- convert_to_pointer (type,
- convert (lang_hooks.types.type_for_size
- (POINTER_SIZE, 0), expr));
default:
error ("cannot convert to a pointer type");
case COMPLEX_TYPE:
return convert (type,
- fold (build1 (REALPART_EXPR,
- TREE_TYPE (TREE_TYPE (expr)), expr)));
+ fold_build1 (REALPART_EXPR,
+ TREE_TYPE (TREE_TYPE (expr)), expr));
case POINTER_TYPE:
case REFERENCE_TYPE:
case POINTER_TYPE:
case REFERENCE_TYPE:
if (integer_zerop (expr))
- expr = integer_zero_node;
- else
- expr = fold (build1 (CONVERT_EXPR,
- lang_hooks.types.type_for_size (POINTER_SIZE, 0),
- expr));
+ return build_int_cst (type, 0);
- return convert_to_integer (type, expr);
+ /* Convert to an unsigned integer of the correct width first,
+ and from there widen/truncate to the required type. */
+ expr = fold_build1 (CONVERT_EXPR,
+ lang_hooks.types.type_for_size (POINTER_SIZE, 0),
+ expr);
+ return fold_build1 (NOP_EXPR, type, expr);
case INTEGER_TYPE:
case ENUMERAL_TYPE:
else
code = NOP_EXPR;
- return build1 (code, type, expr);
+ return fold_build1 (code, type, expr);
}
/* If TYPE is an enumeral type or a type with a precision less
else
typex = lang_hooks.types.signed_type (typex);
return convert (type,
- fold (build2 (ex_form, typex,
- convert (typex, arg0),
- convert (typex, arg1))));
+ fold_build2 (ex_form, typex,
+ convert (typex, arg0),
+ convert (typex, arg1)));
}
}
}
else
typex = lang_hooks.types.signed_type (typex);
return convert (type,
- fold (build1 (ex_form, typex,
- convert (typex,
- TREE_OPERAND (expr, 0)))));
+ fold_build1 (ex_form, typex,
+ convert (typex,
+ TREE_OPERAND (expr, 0))));
}
}
case COND_EXPR:
/* It is sometimes worthwhile to push the narrowing down through
the conditional and never loses. */
- return fold (build3 (COND_EXPR, type, TREE_OPERAND (expr, 0),
- convert (type, TREE_OPERAND (expr, 1)),
- convert (type, TREE_OPERAND (expr, 2))));
+ return fold_build3 (COND_EXPR, type, TREE_OPERAND (expr, 0),
+ convert (type, TREE_OPERAND (expr, 1)),
+ convert (type, TREE_OPERAND (expr, 2)));
default:
break;
case COMPLEX_TYPE:
return convert (type,
- fold (build1 (REALPART_EXPR,
- TREE_TYPE (TREE_TYPE (expr)), expr)));
+ fold_build1 (REALPART_EXPR,
+ TREE_TYPE (TREE_TYPE (expr)), expr));
case VECTOR_TYPE:
if (!tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (TREE_TYPE (expr))))
error ("can't convert between vector values of different size");
return error_mark_node;
}
- return build1 (NOP_EXPR, type, expr);
+ return build1 (VIEW_CONVERT_EXPR, type, expr);
default:
error ("aggregate value used where an integer was expected");
if (TYPE_MAIN_VARIANT (elt_type) == TYPE_MAIN_VARIANT (subtype))
return expr;
else if (TREE_CODE (expr) == COMPLEX_EXPR)
- return fold (build2 (COMPLEX_EXPR, type,
- convert (subtype, TREE_OPERAND (expr, 0)),
- convert (subtype, TREE_OPERAND (expr, 1))));
+ return fold_build2 (COMPLEX_EXPR, type,
+ convert (subtype, TREE_OPERAND (expr, 0)),
+ convert (subtype, TREE_OPERAND (expr, 1)));
else
{
expr = save_expr (expr);
return
- fold (build2 (COMPLEX_EXPR, type,
- convert (subtype,
- fold (build1 (REALPART_EXPR,
- TREE_TYPE (TREE_TYPE (expr)),
- expr))),
- convert (subtype,
- fold (build1 (IMAGPART_EXPR,
- TREE_TYPE (TREE_TYPE (expr)),
- expr)))));
+ fold_build2 (COMPLEX_EXPR, type,
+ convert (subtype,
+ fold_build1 (REALPART_EXPR,
+ TREE_TYPE (TREE_TYPE (expr)),
+ expr)),
+ convert (subtype,
+ fold_build1 (IMAGPART_EXPR,
+ TREE_TYPE (TREE_TYPE (expr)),
+ expr)));
}
}
error ("can't convert between vector values of different size");
return error_mark_node;
}
- return build1 (NOP_EXPR, type, expr);
+ return build1 (VIEW_CONVERT_EXPR, type, expr);
default:
error ("can't convert value to a vector");