static complex_lattice_t
find_lattice_value_parts (tree real, tree imag)
{
int r, i;
complex_lattice_t ret;
r = some_nonzerop (real);
i = some_nonzerop (imag);
ret = r * ONLY_REAL + i * ONLY_IMAG;
/* ??? On occasion we could do better than mapping 0+0i to real, but we
certainly don't want to leave it UNINITIALIZED, which eventually gets
mapped to VARYING. */
if (ret == UNINITIALIZED)
ret = ONLY_REAL;
return ret;
}
static complex_lattice_t
find_lattice_value (tree t)
{
tree real, imag;
int r, i;
complex_lattice_t ret;
switch (TREE_CODE (t))
{
case SSA_NAME:
return VEC_index (complex_lattice_t, complex_lattice_values,
SSA_NAME_VERSION (t));
case COMPLEX_CST:
real = TREE_REALPART (t);
imag = TREE_IMAGPART (t);
break;
case COMPLEX_EXPR:
real = TREE_OPERAND (t, 0);
imag = TREE_OPERAND (t, 1);
break;
default:
gcc_unreachable ();
}
r = some_nonzerop (real);
i = some_nonzerop (imag);
ret = r*ONLY_REAL + i*ONLY_IMAG;
/* ??? On occasion we could do better than mapping 0+0i to real, but we
certainly don't want to leave it UNINITIALIZED, which eventually gets
mapped to VARYING. */
if (ret == UNINITIALIZED)
ret = ONLY_REAL;
return ret;
}