[Bug c++/89224] subscript of const vector is considered a rvalue

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89224

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |88670
      Known to fail|                            |7.1.0
           Keywords|                            |accepts-invalid
            Summary|subscript of NEON intrinsic |subscript of const vector
                   |discards const              |is considered a rvalue
          Component|target                      |c++

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Actually this is a generic vector C++ issue:

typedef __attribute__((vector_size(16))) unsigned char  __Int8x8_t;

template <class T>
void g(T &x) {
  x = 1;
}
void f(const __Int8x8_t &x) {
  g(x[0]);
}


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88670
[Bug 88670] [meta-bug] generic vector extension issues