[Bug middle-end/70127] [6 Regression] wrong code on x86_64-linux-gnu at -O3 in 32-bit and 64-bit modes

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70127

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As #c0 mentions, this has been broken also in older releases, and r196781 has
fixed this, and Honza's commit reverted this again.
The thread that leads to this is
https://gcc.gnu.org/ml/gcc-patches/2015-10/msg02567.html
Adjusted testcase:
struct S { int f; signed int g : 2; } a[1], c = {5, 1}, d;
short b;

__attribute__((noinline, noclone)) void
foo (int x)
{
  if (x != 1)
    __builtin_abort ();
}

int
main ()
{
  while (b++ <= 0)
    {
      struct S e = {1, 1};
      d = e = a[0] = c;
    }
  foo (a[0].g);
  return 0;
}