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152
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1 /* PR tree-optimization/93582 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -Warray-bounds" } */
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4
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5 struct S {
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6 unsigned int s1:1;
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7 unsigned int s2:1;
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8 unsigned int s3:1;
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9 unsigned int s4:1;
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10 unsigned int s5:4;
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11 unsigned char s6;
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12 unsigned short s7;
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13 unsigned short s8;
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14 };
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15 struct T {
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16 int t1;
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17 int t2;
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18 };
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19
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20 static inline int
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21 bar (struct S *x)
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22 {
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23 if (x->s4)
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24 return ((struct T *)(x + 1))->t1 + ((struct T *)(x + 1))->t2; /* { dg-bogus "array subscript 1 is outside array bounds of" } */
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25 else
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26 return 0;
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27 }
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28
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29 int
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30 foo (int x, int y)
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31 {
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32 struct S s; /* { dg-bogus "while referencing" } */
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33 s.s6 = x;
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34 s.s7 = y & 0x1FFF;
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35 s.s4 = 0;
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36 return bar (&s);
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37 }
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38
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39 static inline int
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40 qux (struct S *x)
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41 {
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42 int s4 = x->s4;
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43 if (s4)
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44 return ((struct T *)(x + 1))->t1 + ((struct T *)(x + 1))->t2;
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45 else
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46 return 0;
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47 }
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48
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49 int
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50 baz (int x, int y)
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51 {
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52 struct S s;
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53 s.s6 = x;
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54 s.s7 = y & 0x1FFF;
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55 s.s4 = 0;
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56 return qux (&s);
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57 }
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