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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [20031215-1.c] - Rev 154

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/* PR middle-end/13400 */
/* The following test used to fail at run-time with a write to read-only
   memory, caused by if-conversion converting a conditional write into an
   unconditional write.  */
 
typedef struct {int c, l; char ch[3];} pstr;
const pstr ao = {2, 2, "OK"};
const pstr * const a = &ao;
 
void test1(void)
{
    if (a->ch[a->l]) {
        ((char *)a->ch)[a->l] = 0;
    }
}
 
void test2(void)
{
    if (a->ch[a->l]) {
        ((char *)a->ch)[a->l] = -1;
    }
}
 
void test3(void)
{
    if (a->ch[a->l]) {
        ((char *)a->ch)[a->l] = 1;
    }
}
 
int main(void)
{
    test1();
    test2();
    test3();
    return 0;
}
 
 

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