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comparison gcc/testsuite/gcc.dg/20020607-1.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
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
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
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 }