if (TREE_TYPE (expr) == type)
return expr;
- /* Propagate overflow to the NULL pointer. */
- if (integer_zerop (expr))
- return force_fit_type_double (type, double_int_zero, 0,
- TREE_OVERFLOW (expr));
-
switch (TREE_CODE (TREE_TYPE (expr)))
{
case POINTER_TYPE:
/* Only convert in ISO C99 mode. */
if (!TARGET_C99_FUNCTIONS)
break;
- if (outprec < TYPE_PRECISION (long_integer_type_node)
- || (outprec == TYPE_PRECISION (long_integer_type_node)
+ if (outprec < TYPE_PRECISION (integer_type_node)
+ || (outprec == TYPE_PRECISION (integer_type_node)
&& !TYPE_UNSIGNED (type)))
+ fn = mathfn_built_in (s_intype, BUILT_IN_ICEIL);
+ else if (outprec == TYPE_PRECISION (long_integer_type_node)
+ && !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LCEIL);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
/* Only convert in ISO C99 mode. */
if (!TARGET_C99_FUNCTIONS)
break;
- if (outprec < TYPE_PRECISION (long_integer_type_node)
- || (outprec == TYPE_PRECISION (long_integer_type_node)
+ if (outprec < TYPE_PRECISION (integer_type_node)
+ || (outprec == TYPE_PRECISION (integer_type_node)
&& !TYPE_UNSIGNED (type)))
+ fn = mathfn_built_in (s_intype, BUILT_IN_IFLOOR);
+ else if (outprec == TYPE_PRECISION (long_integer_type_node)
+ && !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LFLOOR);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
break;
CASE_FLT_FN (BUILT_IN_ROUND):
- if (outprec < TYPE_PRECISION (long_integer_type_node)
- || (outprec == TYPE_PRECISION (long_integer_type_node)
+ /* Only convert in ISO C99 mode. */
+ if (!TARGET_C99_FUNCTIONS)
+ break;
+ if (outprec < TYPE_PRECISION (integer_type_node)
+ || (outprec == TYPE_PRECISION (integer_type_node)
&& !TYPE_UNSIGNED (type)))
+ fn = mathfn_built_in (s_intype, BUILT_IN_IROUND);
+ else if (outprec == TYPE_PRECISION (long_integer_type_node)
+ && !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LROUND);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
break;
/* ... Fall through ... */
CASE_FLT_FN (BUILT_IN_RINT):
- if (outprec < TYPE_PRECISION (long_integer_type_node)
- || (outprec == TYPE_PRECISION (long_integer_type_node)
+ /* Only convert in ISO C99 mode. */
+ if (!TARGET_C99_FUNCTIONS)
+ break;
+ if (outprec < TYPE_PRECISION (integer_type_node)
+ || (outprec == TYPE_PRECISION (integer_type_node)
&& !TYPE_UNSIGNED (type)))
+ fn = mathfn_built_in (s_intype, BUILT_IN_IRINT);
+ else if (outprec == TYPE_PRECISION (long_integer_type_node)
+ && !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LRINT);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
tree arg0 = get_unwidened (TREE_OPERAND (expr, 0), type);
tree arg1 = get_unwidened (TREE_OPERAND (expr, 1), type);
+ /* Do not try to narrow operands of pointer subtraction;
+ that will interfere with other folding. */
+ if (ex_form == MINUS_EXPR
+ && CONVERT_EXPR_P (arg0)
+ && CONVERT_EXPR_P (arg1)
+ && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (arg0, 0)))
+ && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (arg1, 0))))
+ break;
+
if (outprec >= BITS_PER_WORD
|| TRULY_NOOP_TRUNCATION (outprec, inprec)
|| inprec > TYPE_PRECISION (TREE_TYPE (arg0))
break;
}
+ /* When parsing long initializers, we might end up with a lot of casts.
+ Shortcut this. */
+ if (TREE_CODE (expr) == INTEGER_CST)
+ return fold_convert (type, expr);
return build1 (CONVERT_EXPR, type, expr);
case REAL_TYPE: