switch (func)
{
- case CFN_BUILT_IN_SIGNBIT:
- {
- arg = gimple_call_arg (call, 0);
- frange tmp;
- if (src.get_operand (tmp, arg))
- {
- bool signbit;
- if (tmp.signbit_p (signbit))
- {
- if (signbit)
- r.set_nonzero (type);
- else
- r.set_zero (type);
- return true;
- }
- return false;
- }
- break;
- }
-
case CFN_BUILT_IN_TOUPPER:
{
arg = gimple_call_arg (call, 0);
}
} op_cfn_constant_p;
+// Implement range operator for CFN_BUILT_IN_SIGNBIT.
+class cfn_signbit : public range_operator_float
+{
+public:
+ using range_operator_float::fold_range;
+ virtual bool fold_range (irange &r, tree type, const frange &lh,
+ const irange &, relation_kind) const
+ {
+ bool signbit;
+ if (lh.signbit_p (signbit))
+ {
+ if (signbit)
+ r.set_nonzero (type);
+ else
+ r.set_zero (type);
+ return true;
+ }
+ return false;
+ }
+} op_cfn_signbit;
+
// Set up a gimple_range_op_handler for any built in function which can be
// supported via range-ops.
m_valid = false;
break;
+ case CFN_BUILT_IN_SIGNBIT:
+ m_op1 = gimple_call_arg (call, 0);
+ m_float = &op_cfn_signbit;
+ m_valid = true;
+ break;
+
default:
break;
}