| /* PR tree-optimization/39343 */ | |
| /* { dg-do run } */ | |
| /* { dg-options "-O2" } */ | |
| extern void abort (void); | |
| extern inline __attribute__ ((__always_inline__)) int | |
| foo (char *dest) | |
| { | |
| return __builtin_object_size (dest, 1); | |
| } | |
| struct S | |
| { | |
| union | |
| { | |
| struct { int a, b; char c, d; } f; | |
| struct { struct { int a, b; char c, d[255]; } e; } g; | |
| } u; | |
| }; | |
| int | |
| main (void) | |
| { | |
| struct S s; | |
| if (foo (s.u.g.e.d) != 255) | |
| abort (); | |
| return 0; | |
| } |