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111
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1 /* PR middle-end/6950
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2 gcc 3.0.4 mistakenly set lhs.low to 0 at the beginning of the num_eq
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3 expansion; it should use a temporary.
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4 /* { dg-do run } */
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5
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6 typedef struct cpp_num cpp_num;
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7 struct cpp_num
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8 {
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9 long high;
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10 long low;
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11 char overflow;
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12 };
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13
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14 #define num_eq(num1, num2) (num1.low == num2.low && num1.high == num2.high)
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15
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16 static cpp_num
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17 num_equality_op (lhs, rhs)
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18 cpp_num lhs, rhs;
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19 {
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20 lhs.low = num_eq (lhs, rhs);
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21 lhs.high = 0;
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22 lhs.overflow = 0;
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23 return lhs;
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24 }
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25
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26 int main()
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27 {
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28 cpp_num a = { 1, 2 };
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29 cpp_num b = { 3, 4 };
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30
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31 cpp_num result = num_equality_op (a, b);
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32 if (result.low)
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33 return 1;
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34
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35 result = num_equality_op (a, a);
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36 if (!result.low)
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37 return 2;
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38
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39 return 0;
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40 }
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