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111
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1 /* { dg-do run } */
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2 /* { dg-options "-O2" } */
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3
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4 #include "strlenopt.h"
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5
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6 __attribute__((noinline, noclone)) char *
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7 fn1 (char *p, size_t *l)
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8 {
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9 char *q = strcat (p, "abcde");
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10 *l = strlen (p);
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11 return q;
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12 }
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13
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14 __attribute__((noinline, noclone)) char *
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15 fn2 (char *p, const char *q, size_t *l1, size_t *l2)
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16 {
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17 size_t l = strlen (q);
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18 char *r = strcat (p, q);
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19 *l1 = l;
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20 *l2 = strlen (p);
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21 return r;
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22 }
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23
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24 __attribute__((noinline, noclone)) char *
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25 fn3 (char *p, const char *q, size_t *l)
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26 {
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27 char *r = strcpy (p, q);
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28 *l = strlen (p);
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29 return r;
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30 }
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31
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32 __attribute__((noinline, noclone)) char *
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33 fn4 (char *p, const char *q, size_t *l)
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34 {
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35 char *r = strcat (p, q);
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36 *l = strlen (p);
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37 return r;
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38 }
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39
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40 __attribute__((noinline, noclone)) char *
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41 fn5 (char *p, const char *q, size_t *l1, size_t *l2, size_t *l3)
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42 {
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43 size_t l = strlen (q);
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44 size_t ll = strlen (p);
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45 char *r = strcat (p, q);
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46 *l1 = l;
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47 *l2 = strlen (p);
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48 *l3 = ll;
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49 return r;
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50 }
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51
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52 __attribute__((noinline, noclone)) char *
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53 fn6 (char *p, const char *q, size_t *l1, size_t *l2)
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54 {
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55 size_t l = strlen (p);
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56 char *r = strcat (p, q);
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57 *l1 = strlen (p);
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58 *l2 = l;
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59 return r;
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60 }
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61
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62 int
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63 main ()
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64 {
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65 char buf[64];
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66 const char *volatile q = "fgh";
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67 size_t l, l1, l2, l3;
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68 memset (buf, '\0', sizeof buf);
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69 memset (buf, 'a', 3);
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70 if (fn1 (buf, &l) != buf || l != 8 || memcmp (buf, "aaaabcde", 9) != 0)
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71 abort ();
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72 if (fn2 (buf, q, &l1, &l2) != buf || l1 != 3 || l2 != 11
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73 || memcmp (buf, "aaaabcdefgh", 12) != 0)
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74 abort ();
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75 if (fn3 (buf, q, &l) != buf || l != 3
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76 || memcmp (buf, "fgh\0bcdefgh", 12) != 0)
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77 abort ();
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78 if (fn4 (buf, q, &l) != buf || l != 6
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79 || memcmp (buf, "fghfgh\0efgh", 12) != 0)
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80 abort ();
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81 l1 = 0;
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82 l2 = 0;
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83 if (fn5 (buf, q, &l1, &l2, &l3) != buf || l1 != 3 || l2 != 9 || l3 != 6
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84 || memcmp (buf, "fghfghfgh\0h", 12) != 0)
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85 abort ();
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86 if (fn6 (buf, q, &l1, &l2) != buf || l1 != 12 || l2 != 9
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87 || memcmp (buf, "fghfghfghfgh", 13) != 0)
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88 abort ();
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89 return 0;
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90 }
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