1 /* PR middle-end/6950
2    gcc 3.0.4 mistakenly set lhs.low to 0 at the beginning of the num_eq
3    expansion; it should use a temporary.
4 /* { dg-do run } */
5 
6 typedef struct cpp_num cpp_num;
7 struct cpp_num
8 {
9   long high;
10   long low;
11   char overflow;
12 };
13 
14 #define num_eq(num1, num2) (num1.low == num2.low && num1.high == num2.high)
15 
16 static cpp_num
num_equality_op(lhs,rhs)17 num_equality_op (lhs, rhs)
18      cpp_num lhs, rhs;
19 {
20   lhs.low = num_eq (lhs, rhs);
21   lhs.high = 0;
22   lhs.overflow = 0;
23   return lhs;
24 }
25 
main()26 int main()
27 {
28   cpp_num a = { 1, 2 };
29   cpp_num b = { 3, 4 };
30 
31   cpp_num result = num_equality_op (a, b);
32   if (result.low)
33     return 1;
34 
35   result = num_equality_op (a, a);
36   if (!result.low)
37     return 2;
38 
39   return 0;
40 }
41