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annotate gcc/testsuite/c-c++-common/Wrestrict-3.c @ 144:8f4e72ab4e11

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fix segmentation fault caused by nothing next cur_op to end
author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 21:23:56 +0900
parents 84e7813d76e9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* PR c/83989 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -Wrestrict" } */
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4
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5 __attribute__((__malloc__)) extern void *my_malloc (__SIZE_TYPE__);
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6 void baz (void *);
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7
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8 #define SIZE 32
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9
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10 void
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11 foo (void)
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12 {
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13 void *recmem = __builtin_malloc (SIZE);
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14 baz (recmem);
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15 while (1)
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16 {
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17 void *oldrecmem = recmem;
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18 recmem = __builtin_malloc (SIZE);
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19 if (!recmem)
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20 {
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21 __builtin_free (oldrecmem);
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22 return;
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23 }
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24 __builtin_memcpy (recmem, oldrecmem, SIZE); /* { dg-bogus "accessing" } */
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25 baz (recmem);
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26 __builtin_free (oldrecmem);
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27 }
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28 }
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29
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30 void
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31 bar (void)
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32 {
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33 void *recmem = my_malloc (SIZE);
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34 baz (recmem);
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35 while (1)
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36 {
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37 void *oldrecmem = recmem;
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38 recmem = my_malloc (SIZE);
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39 if (!recmem)
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40 {
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41 __builtin_free (oldrecmem);
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42 return;
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43 }
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44 __builtin_memcpy (recmem, oldrecmem, SIZE); /* { dg-bogus "accessing" } */
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45 baz (recmem);
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46 __builtin_free (oldrecmem);
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47 }
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48 }