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111
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1 /* Test operation of -Wparentheses. Precedence warnings. + or -
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2 inside shift. */
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3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
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4
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5 /* { dg-do compile } */
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6 /* { dg-options "-Wparentheses" } */
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7
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8 int foo (int);
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9
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10 int
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11 bar (int a, int b, int c)
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12 {
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13 foo (a + b << c); /* { dg-warning "parentheses" "correct warning" } */
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14 foo ((a + b) << c);
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15 foo (a + (b << c));
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16 foo (1 + 2 << c); /* { dg-warning "parentheses" "correct warning" } */
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17 foo ((1 + 2) << c);
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18 foo (1 + (2 << c));
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19 foo (1 + 2 << 3); /* { dg-warning "parentheses" "correct warning" } */
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20 foo ((1 + 2) << 3);
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21 foo (1 + (2 << 3));
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22 foo (a << b + c); /* { dg-warning "parentheses" "correct warning" } */
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23 foo ((a << b) + c);
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24 foo (a << (b + c));
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25 foo (1 << 2 + c); /* { dg-warning "parentheses" "correct warning" } */
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26 foo ((1 << 2) + c);
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27 foo (1 << (2 + c));
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28 foo (1 << 2 + 3); /* { dg-warning "parentheses" "correct warning" } */
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29 foo ((1 << 2) + 3);
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30 foo (1 << (2 + 3));
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31 foo (a + b >> c); /* { dg-warning "parentheses" "correct warning" } */
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32 foo ((a + b) >> c);
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33 foo (a + (b >> c));
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34 foo (1 + 2 >> c); /* { dg-warning "parentheses" "correct warning" } */
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35 foo ((1 + 2) >> c);
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36 foo (1 + (2 >> c));
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37 foo (1 + 2 >> 3); /* { dg-warning "parentheses" "correct warning" } */
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38 foo ((1 + 2) >> 3);
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39 foo (1 + (2 >> 3));
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40 foo (a >> b + c); /* { dg-warning "parentheses" "correct warning" } */
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41 foo ((a >> b) + c);
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42 foo (a >> (b + c));
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43 foo (1 >> 2 + c); /* { dg-warning "parentheses" "correct warning" } */
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44 foo ((1 >> 2) + c);
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45 foo (1 >> (2 + c));
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46 foo (1 >> 2 + 3); /* { dg-warning "parentheses" "correct warning" } */
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47 foo ((1 >> 2) + 3);
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48 foo (1 >> (2 + 3));
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49 foo (a - b << c); /* { dg-warning "parentheses" "correct warning" } */
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50 foo ((a - b) << c);
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51 foo (a - (b << c));
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52 foo (6 - 5 << c); /* { dg-warning "parentheses" "correct warning" } */
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53 foo ((6 - 5) << c);
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54 foo (6 - (5 << c));
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55 foo (6 - 5 << 4); /* { dg-warning "parentheses" "correct warning" } */
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56 foo ((6 - 5) << 4);
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57 foo (6 - (5 << 4));
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58 foo (a << b - c); /* { dg-warning "parentheses" "correct warning" } */
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59 foo ((a << b) - c);
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60 foo (a << (b - c));
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61 foo (6 << 5 - c); /* { dg-warning "parentheses" "correct warning" } */
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62 foo ((6 << 5) - c);
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63 foo (6 << (5 - c));
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64 foo (6 << 5 - 4); /* { dg-warning "parentheses" "correct warning" } */
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65 foo ((6 << 5) - 4);
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66 foo (6 << (5 - 4));
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67 foo (a - b >> c); /* { dg-warning "parentheses" "correct warning" } */
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68 foo ((a - b) >> c);
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69 foo (a - (b >> c));
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70 foo (6 - 5 >> c); /* { dg-warning "parentheses" "correct warning" } */
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71 foo ((6 - 5) >> c);
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72 foo (6 - (5 >> c));
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73 foo (6 - 5 >> 4); /* { dg-warning "parentheses" "correct warning" } */
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74 foo ((6 - 5) >> 4);
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75 foo (6 - (5 >> 4));
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76 foo (a >> b - c); /* { dg-warning "parentheses" "correct warning" } */
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77 foo ((a >> b) - c);
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78 foo (a >> (b - c));
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79 foo (6 >> 5 - c); /* { dg-warning "parentheses" "correct warning" } */
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80 foo ((6 >> 5) - c);
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81 foo (6 >> (5 - c));
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82 foo (6 >> 5 - 4); /* { dg-warning "parentheses" "correct warning" } */
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83 foo ((6 >> 5) - 4);
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84 foo (6 >> (5 - 4));
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85 }
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