extern void layout_decl PROTO((tree, unsigned));
-/* Fold constants as much as possible in an expression.
- Returns the simplified expression.
- Acts only on the top level of the expression;
- if the argument itself cannot be simplified, its
- subexpressions are not changed. */
-
-extern tree fold PROTO((tree));
-
/* Return an expr equal to X but certainly not valid as an lvalue. */
extern tree non_lvalue PROTO((tree));
/* In fold-const.c */
-extern tree invert_truthvalue PROTO((tree));
+/* Fold constants as much as possible in an expression.
+ Returns the simplified expression.
+ Acts only on the top level of the expression;
+ if the argument itself cannot be simplified, its
+ subexpressions are not changed. */
+
+extern tree fold PROTO((tree));
+
+extern int force_fit_type PROTO((tree, int));
+extern int add_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern int neg_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern int mul_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern void lshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *, int));
+extern void rshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int,
+ HOST_WIDE_INT *, HOST_WIDE_INT *, int));
+extern void lrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern void rrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern int operand_equal_p PROTO((tree, tree, int));
+extern tree invert_truthvalue PROTO((tree));
\f
/* The language front-end must define these functions. */