| /* 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); |
| } |