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/* { dg-do run } */

/* { dg-options "-O2 -fdump-tree-strlen" } */

#include "strlenopt.h"

__attribute__((noinline, noclone)) char *

foo (char *p, char *r)

{

  char buf[26];

  if (strlen (p) + strlen (r) + 9 > 26)

    return NULL;

  /* This strcpy can be optimized into memcpy, using the remembered

     strlen (p).  */

  strcpy (buf, p);

  /* These two strcat can be optimized into memcpy.  The first one

     could be even optimized into a *ptr = '/'; store as the '\0'

     is immediately overwritten.  */

  strcat (buf, "/");

  strcat (buf, "abcde");

  /* This strcpy can be optimized into memcpy, using the remembered

     strlen (r).  */

  strcat (buf, r);

  /* And this can be optimized into memcpy too.  */

  strcat (buf, "fg");

  return strdup (buf);

}

int

main ()

{

  char *volatile p = "string1";

  char *volatile r = "string2";

  char *q = foo (p, r);

  if (q != NULL)

    {

      if (strcmp (q, "string1/abcdestring2fg"))

        abort ();

      free (q);

    }

  return 0;

}

/* { dg-final { scan-tree-dump-times "strlen \\(" 2 "strlen" } } */

/* { dg-final { scan-tree-dump-times "memcpy \\(" 5 "strlen" } } */

/* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen" } } */

/* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen" } } */

/* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen" } } */

/* { dg-final { scan-tree-dump-times "stpcpy \\(" 0 "strlen" } } */

/* { dg-final { cleanup-tree-dump "strlen" } } */