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111
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1 /* PR tree-optimization/79715 - hand-rolled strdup with unused result
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2 not eliminated
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3 { dg-do compile }
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4 { dg-options "-O2 -Wall -fdump-tree-optimized" } */
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5
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6 void f (const char *s)
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7 {
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8 unsigned n = __builtin_strlen (s) + 1;
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9 char *p = __builtin_malloc (n);
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10 __builtin_memcpy (p, s, n);
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11 __builtin_free (p);
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12 }
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13
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14 void g (const char *s)
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15 {
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16 unsigned n = __builtin_strlen (s) + 1;
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17 char *p = __builtin_malloc (n);
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18 __builtin_strcpy (p, s);
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19 __builtin_free (p);
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20 }
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21
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22 /* { dg-final { scan-tree-dump-not "free" "optimized" } }
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23 { dg-final { scan-tree-dump-not "malloc" "optimized" } }
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24 { dg-final { scan-tree-dump-not "memcpy" "optimized" } }
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25 { dg-final { scan-tree-dump-not "strcpy" "optimized" } }
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26 { dg-final { scan-tree-dump-not "strlen" "optimized" } } */
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