Viewing file:  pr41239.c (1.27 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* PR rtl-optimization/41239 */
struct S
{
short nargs;
unsigned long arg[2];
};
extern void abort (void);
extern void exit (int);
extern char fn1 (int, const char *, int, const char *, const char *);
extern void fn2 (int, ...);
extern int fn3 (int);
extern int fn4 (const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
unsigned long
test (struct S *x)
{
signed int arg1 = x->arg[0];
long int arg2 = x->arg[1];
if (arg2 == 0)
(fn1 (20, "foo", 924, __func__, ((void *) 0))
? (fn2 (fn3 (0x2040082), fn4 ("division by zero")))
: (void) 0);
return (long int) arg1 / arg2;
}
int
main (void)
{
struct S s = { 2, { 5, 0 } };
test (&s);
abort ();
}
__attribute__((noinline)) char
fn1 (int x, const char *y, int z, const char *w, const char *v)
{
asm volatile ("" : : "r" (w), "r" (v) : "memory");
asm volatile ("" : "+r" (x) : "r" (y), "r" (z) : "memory");
return x;
}
__attribute__((noinline)) int
fn3 (int x)
{
asm volatile ("" : "+r" (x) : : "memory");
return x;
}
__attribute__((noinline)) int
fn4 (const char *x, ...)
{
asm volatile ("" : "+r" (x) : : "memory");
return *x;
}
__attribute__((noinline)) void
fn2 (int x, ...)
{
asm volatile ("" : "+r" (x) : : "memory");
if (x)
/* Could be a longjmp or throw too. */
exit (0);
}
|
