mirror of
https://github.com/gcc-mirror/gcc.git
synced 2024-11-21 13:40:47 +00:00
Implement operator_addr_expr for prange.
gcc/ChangeLog: * range-op-mixed.h: Add overloaded declarations for pointer variants. * range-op-ptr.cc (operator_addr_expr::op1_range): New. (operator_addr_expr::pointers_handled_p): New.
This commit is contained in:
parent
1a4f5d4991
commit
54d3fd6d9f
@ -655,6 +655,10 @@ public:
|
||||
bool op1_range (irange &r, tree type,
|
||||
const irange &lhs, const irange &op2,
|
||||
relation_trio rel = TRIO_VARYING) const final override;
|
||||
bool op1_range (prange &r, tree type,
|
||||
const prange &lhs, const prange &op2,
|
||||
relation_trio rel = TRIO_VARYING) const final override;
|
||||
bool pointers_handled_p (range_op_dispatch_type, unsigned) const final override;
|
||||
};
|
||||
|
||||
class operator_bitwise_not : public range_operator
|
||||
|
@ -1021,6 +1021,44 @@ operator_max::pointers_handled_p (range_op_dispatch_type type,
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
operator_addr_expr::op1_range (prange &r, tree type,
|
||||
const prange &lhs,
|
||||
const prange &op2,
|
||||
relation_trio) const
|
||||
{
|
||||
if (empty_range_varying (r, type, lhs, op2))
|
||||
return true;
|
||||
|
||||
// Return a non-null pointer of the LHS type (passed in op2), but only
|
||||
// if we cant overflow, eitherwise a no-zero offset could wrap to zero.
|
||||
// See PR 111009.
|
||||
if (!lhs.undefined_p ()
|
||||
&& !range_includes_zero_p (lhs)
|
||||
&& TYPE_OVERFLOW_UNDEFINED (type))
|
||||
r.set_nonzero (type);
|
||||
else
|
||||
r.set_varying (type);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool
|
||||
operator_addr_expr::pointers_handled_p (range_op_dispatch_type type,
|
||||
unsigned dispatch) const
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case DISPATCH_FOLD_RANGE:
|
||||
// NOTE: It looks like we never generate this combination.
|
||||
gcc_unreachable ();
|
||||
return false;
|
||||
case DISPATCH_OP1_RANGE:
|
||||
return dispatch == RO_PPP;
|
||||
default:
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
// Initialize any pointer operators to the primary table
|
||||
|
||||
void
|
||||
|
Loading…
Reference in New Issue
Block a user