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/* Copyright (C) 2002, 2005  Free Software Foundation.

   Test -minline-all-stringops memset with various combinations of pointer

   alignments and lengths to make sure builtin optimizations are correct.

   PR target/6456.

   Written by Michael Meissner, March 9, 2002.

   Target by Roger Sayle, April 25, 2002.  */

/* { dg-do run } */

/* { dg-options "-O2 -minline-all-stringops" } */

extern void *memset (void *, int, __SIZE_TYPE__);

extern void abort (void);

extern void exit (int);

#ifndef MAX_OFFSET

#define MAX_OFFSET (sizeof (long long))

#endif

#ifndef MAX_COPY

#define MAX_COPY (8 * sizeof (long long))

#endif

#ifndef MAX_EXTRA

#define MAX_EXTRA (sizeof (long long))

#endif

#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)

static union {

  char buf[MAX_LENGTH];

  long long align_int;

  long double align_fp;

} u;

char A = 'A';

main ()

{

  int off, len, i;

  char *p, *q;

  for (off = 0; off < MAX_OFFSET; off++)

    for (len = 1; len < MAX_COPY; len++)

      {

        for (i = 0; i < MAX_LENGTH; i++)

          u.buf[i] = 'a';

        p = memset (u.buf + off, '\0', len);

        if (p != u.buf + off)

          abort ();

        q = u.buf;

        for (i = 0; i < off; i++, q++)

          if (*q != 'a')

            abort ();

        for (i = 0; i < len; i++, q++)

          if (*q != '\0')

            abort ();

        for (i = 0; i < MAX_EXTRA; i++, q++)

          if (*q != 'a')

            abort ();

        p = memset (u.buf + off, A, len);

        if (p != u.buf + off)

          abort ();

        q = u.buf;

        for (i = 0; i < off; i++, q++)

          if (*q != 'a')

            abort ();

        for (i = 0; i < len; i++, q++)

          if (*q != 'A')

            abort ();

        for (i = 0; i < MAX_EXTRA; i++, q++)

          if (*q != 'a')

            abort ();

        p = memset (u.buf + off, 'B', len);

        if (p != u.buf + off)

          abort ();

        q = u.buf;

        for (i = 0; i < off; i++, q++)

          if (*q != 'a')

            abort ();

        for (i = 0; i < len; i++, q++)

          if (*q != 'B')

            abort ();

        for (i = 0; i < MAX_EXTRA; i++, q++)

          if (*q != 'a')

            abort ();

      }

  exit(0);

}