mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-27 13:05:24 +08:00
53 lines
985 B
C
53 lines
985 B
C
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
int main ()
|
||
|
|
{
|
||
|
|
volatile int *p;
|
||
|
|
|
||
|
|
__mf_set_options ("-wipe-stack -no-check-initialization");
|
||
|
|
|
||
|
|
{
|
||
|
|
volatile int array [10];
|
||
|
|
p = & array[0];
|
||
|
|
|
||
|
|
array[0] = 2;
|
||
|
|
array[9] = 5;
|
||
|
|
|
||
|
|
/* Array[] should be wiped clean at this point. */
|
||
|
|
}
|
||
|
|
|
||
|
|
__mf_set_options ("-no-wipe-stack");
|
||
|
|
|
||
|
|
{
|
||
|
|
volatile int array2[10];
|
||
|
|
|
||
|
|
/* hope that this is allocated on top of old array[] */
|
||
|
|
if (p != & array2[0])
|
||
|
|
exit (0); /* Test is not applicable. */
|
||
|
|
|
||
|
|
array2[5] = 6;
|
||
|
|
|
||
|
|
/* Old values shouldn't still be around; the new one should. */
|
||
|
|
if (p[0] == 2 || p[9] == 5 || p[5] != 6)
|
||
|
|
abort() ;
|
||
|
|
|
||
|
|
/* array2[] should not be wiped at this point! */
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
volatile int array3[10];
|
||
|
|
|
||
|
|
/* hope that this is allocated on top of old array[] and array2[]*/
|
||
|
|
if (p != & array3[0])
|
||
|
|
exit (0); /* Test is not applicable. */
|
||
|
|
|
||
|
|
array3[1] = 2;
|
||
|
|
|
||
|
|
/* Check that old assignment is still around. */
|
||
|
|
if (p[5] != 6 || p[1] != 2)
|
||
|
|
abort() ;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|