[Bug ipa/119312] Constant array not allocated in read-only segment

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119312

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
CCing Joseph for C legalese, but if the whole struct isn't const, I wonder if
it isn't valid to just
void
foo (struct S *s)
{
  struct S y = { ... };
  *s = y;
}
Or if e.g. code can't validly change at least padding (if any) in the structure
even if all the members are const.
struct S { const char a[3]; const int b; const char c[3]; };