Viewing file:  20030408-1.c (1.74 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* PR optimization/8634 */
/* Contributed by Glen Nakamura <glen at imodulo dot com> */
extern void abort (void);
struct foo {
char a, b, c, d, e, f, g, h, i, j;
};
int test1 ()
{
const char X[8] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' };
char buffer[8];
__builtin_memcpy (buffer, X, 8);
if (buffer[0] != 'A' || buffer[1] != 'B'
|| buffer[2] != 'C' || buffer[3] != 'D'
|| buffer[4] != 'E' || buffer[5] != 'F'
|| buffer[6] != 'G' || buffer[7] != 'H')
abort ();
return 0;
}
int test2 ()
{
const char X[10] = { 'A', 'B', 'C', 'D', 'E' };
char buffer[10];
__builtin_memcpy (buffer, X, 10);
if (buffer[0] != 'A' || buffer[1] != 'B'
|| buffer[2] != 'C' || buffer[3] != 'D'
|| buffer[4] != 'E' || buffer[5] != '\0'
|| buffer[6] != '\0' || buffer[7] != '\0'
|| buffer[8] != '\0' || buffer[9] != '\0')
abort ();
return 0;
}
int test3 ()
{
const struct foo X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' };
char buffer[10];
__builtin_memcpy (buffer, &X, 10);
if (buffer[0] != 'A' || buffer[1] != '\0'
|| buffer[2] != 'C' || buffer[3] != '\0'
|| buffer[4] != 'E' || buffer[5] != '\0'
|| buffer[6] != 'G' || buffer[7] != '\0'
|| buffer[8] != 'I' || buffer[9] != '\0')
abort ();
return 0;
}
int test4 ()
{
const struct foo X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' };
char buffer[10];
__builtin_memcpy (buffer, &X, 10);
if (buffer[0] != '\0' || buffer[1] != 'B'
|| buffer[2] != '\0' || buffer[3] != 'D'
|| buffer[4] != '\0' || buffer[5] != 'F'
|| buffer[6] != '\0' || buffer[7] != 'H'
|| buffer[8] != '\0' || buffer[9] != 'J')
abort ();
return 0;
}
int main ()
{
test1 (); test2 (); test3 (); test4 ();
return 0;
}
|
