and all numbers from min to 0 for negative min. */
cmp = compare_values (vr0.max, zero);
if (cmp == -1)
- max = zero;
+ {
+ /* When vr0.max < 0, vr1.min != 0 and value
+ ranges for dividend and divisor are available. */
+ if (vr1.type == VR_RANGE
+ && !symbolic_range_p (&vr0)
+ && !symbolic_range_p (&vr1)
+ && !compare_values (vr1.min, zero))
+ max = int_const_binop (code, vr0.max, vr1.min);
+ else
+ max = zero;
+ }
else if (cmp == 0 || cmp == 1)
max = vr0.max;
else
type = VR_VARYING;
cmp = compare_values (vr0.min, zero);
if (cmp == 1)
- min = zero;
+ {
+ /* For unsigned division when value ranges for dividend
+ and divisor are available. */
+ if (vr1.type == VR_RANGE
+ && !symbolic_range_p (&vr0)
+ && !symbolic_range_p (&vr1))
+ min = int_const_binop (code, vr0.min, vr1.max);
+ else
+ min = zero;
+ }
else if (cmp == 0 || cmp == -1)
min = vr0.min;
else