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111
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1 /* PR c/68412 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-Wall -Wextra" } */
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4
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5 #define M (sizeof (int) * __CHAR_BIT__)
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6
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7 int
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8 fn1 (int i)
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9 {
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10 return i == (-1 << 8); /* { dg-warning "left shift of negative value" } */
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11 }
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12
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13 int
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14 fn2 (int i)
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15 {
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16 return i == (1 << M); /* { dg-warning "left shift count" } */
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17 }
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18
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19 int
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20 fn3 (int i)
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21 {
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22 return i == 10 << (M - 1); /* { dg-warning "requires" } */
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23 }
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24
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25 int
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26 fn4 (int i)
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27 {
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28 return i == 1 << -1; /* { dg-warning "left shift count" } */
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29 }
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30
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31 int
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32 fn5 (int i)
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33 {
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34 return i == 1 >> M; /* { dg-warning "right shift count" } */
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35 }
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36
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37 int
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38 fn6 (int i)
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39 {
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40 return i == 1 >> -1; /* { dg-warning "right shift count" } */
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41 }
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