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/* Copyright (C) 2001 Free Software Foundation.
Ensure that short builtin memcmp are optimized and perform correctly.
On architectures with a cmpstrsi instruction, this test doesn't determine
which optimization is being performed, but it does check for correctness.
Written by Roger Sayle, 12/02/2001.
Additional tests by Roger Sayle after PR 3508, 12/26/2001. */
extern void abort (void);
typedef __SIZE_TYPE__ size_t;
extern int memcmp (const void *, const void *, size_t);
extern char *strcpy (char *, const char *);
extern void link_error (void);
void
main_test (void)
{
char str[8];
strcpy (str, "3141");
if ( memcmp (str, str+2, 0) != 0 )
abort ();
if ( memcmp (str+1, str+3, 0) != 0 )
abort ();
if ( memcmp (str+1, str+3, 1) != 0 )
abort ();
if ( memcmp (str, str+2, 1) >= 0 )
abort ();
if ( memcmp (str+2, str, 1) <= 0 )
abort ();
if (memcmp ("abcd", "efgh", 4) >= 0)
link_error ();
if (memcmp ("abcd", "abcd", 4) != 0)
link_error ();
if (memcmp ("efgh", "abcd", 4) <= 0)
link_error ();
}
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