Subversion Repositories openrisc_me

/* Copyright (C) 2004  Free Software Foundation.

   Check builtin memmove and bcopy optimization when length is 1.

   Written by Jakub Jelinek, 9/14/2004.  */

extern void abort (void);

typedef __SIZE_TYPE__ size_t;

extern void *memmove (void *, const void *, size_t);

extern void bcopy (const void *, void *, size_t);

extern int memcmp (const void *, const void *, size_t);

char p[32] = "abcdefg";

char *q = p + 4;

void

main_test (void)

{

  /* memmove with length 1 can be optimized into memcpy if it can be

     expanded inline.  */

  if (memmove (p + 2, p + 3, 1) != p + 2 || memcmp (p, "abddefg", 8))

    abort ();

  if (memmove (p + 1, p + 1, 1) != p + 1 || memcmp (p, "abddefg", 8))

    abort ();

  if (memmove (q, p + 4, 1) != p + 4 || memcmp (p, "abddefg", 8))

    abort ();

  bcopy (p + 5, p + 6, 1);

  if (memcmp (p, "abddeff", 8))

    abort ();

  bcopy (p + 1, p + 1, 1);

  if (memcmp (p, "abddeff", 8))

    abort ();

  bcopy (q, p + 4, 1);

  if (memcmp (p, "abddeff", 8))

    abort ();

}