| /* Verify that casts between pointers and integers don't trigger false |
| positives. Test derived from Glibc's _dl_allocate_tls_storage() in |
| dl-tls.c. |
| { dg-do compile } |
| { dg-options "-O2 -Wall -Wno-array-bounds" } */ |
| |
| typedef __SIZE_TYPE__ size_t; |
| typedef __UINTPTR_TYPE__ uintptr_t; |
| |
| size_t a; |
| size_t s; |
| |
| void* _dl_allocate_tls_storage (void) |
| { |
| void *p = __builtin_malloc (s + a + sizeof (void *)); |
| |
| char *q = (char *)(__builtin_constant_p (a) && (((a - 1) & a) == 0) |
| ? ((((uintptr_t)p) + a - 1) & ~(a - 1)) |
| : (((((uintptr_t)p) + (a - 1)) / a) * a)); |
| |
| char *r = q + s - sizeof (int[4]); |
| __builtin_memset (r, '\0', sizeof (int[4])); |
| return r; |
| } |
