https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86738
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase:
struct S { int s; };
unsigned char a[20];
void
foo ()
{
__builtin_memcpy (&a[15], &a[(unsigned) (__UINTPTR_TYPE__) &((S *) 0)->s],
2);
// __builtin_memcpy (&a[15], &a[(unsigned) __builtin_offsetof (S, s)], 2);
}
You really should just use offsetof, instead of poor man's attempts at it.
That said, g++ should not crash on it.
