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111
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1 /* PR middle-end/47917 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -fdump-tree-optimized" } */
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4
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5 extern int snprintf (char *, __SIZE_TYPE__, const char *, ...);
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6 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
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7 extern void abort (void);
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8
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9 char buf1[6], buf2[6], buf3[4], buf4[4];
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10 int i;
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11
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12 int
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13 foo (void)
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14 {
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15 int ret = snprintf (buf1, sizeof buf1, "abcde");
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16 ret += snprintf (buf2, sizeof buf2, "abcdef") * 16;
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17 ret += snprintf (buf3, sizeof buf3, "%s", i++ < 6 ? "abc" : "def") * 256;
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18 ret += snprintf (buf4, sizeof buf4, "%s", i++ > 10 ? "abcde" : "defgh") * 4096;
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19 return ret;
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20 }
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21
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22 int
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23 main (void)
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24 {
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25 if (foo () != 5 + 6 * 16 + 3 * 256 + 5 * 4096)
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26 abort ();
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27 if (memcmp (buf1, "abcde", 6) != 0
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28 || memcmp (buf2, "abcde", 6) != 0
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29 || memcmp (buf3, "abc", 4) != 0
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30 || memcmp (buf4, "def", 4) != 0
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31 || i != 2)
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32 abort ();
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33 return 0;
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34 }
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35
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36 /* { dg-final { scan-tree-dump-times "snprintf" 2 "optimized" } } */
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37 /* { dg-final { scan-tree-dump-times "sprintf" 0 "optimized" } } */
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