| /* PR middle-end/38454 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fno-tree-dse" } */ |
| |
| typedef __SIZE_TYPE__ size_t; |
| |
| extern inline __attribute__((gnu_inline, always_inline, artificial)) void * |
| memcpy (void *__restrict dest, const void *__restrict src, size_t len) |
| { |
| return __builtin___memcpy_chk (dest, /* { dg-warning "writing" } */ |
| src, len, __builtin_object_size (dest, 0)); |
| } |
| |
| struct S { char buf[10]; } s; |
| |
| void |
| foo (void) |
| { |
| char buf[12]; |
| char *p = buf + 4; |
| struct S *q = (struct S *) p; |
| memcpy (q, &s, sizeof (s)); |
| } |
| |
| /* { dg-final { scan-assembler "__memcpy_chk" } } */ |
