[Bug target/96827] [10/11 Regression] __m128i from _mm_set_epi32 is backwards with -O3

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96827

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase for -O3:
typedef int V __attribute__((__vector_size__(16)));

__attribute__((__noipa__)) void
foo (unsigned int x, V *y)
{
  unsigned int a[4] = { x + 0, x + 2, x + 4, x + 6 };
  for (unsigned int i = 0; i < 3; ++i)
    if (a[i] == 1234)
      a[i]--;
  *y = (V) { a[3], a[2], a[1], a[0] };
}

int
main ()
{
  V b;
  foo (0, &b);
  if (b[0] != 6 || b[1] != 4 || b[2] != 2 || b[3] != 0)
    __builtin_abort ();
  return 0;
}