[Bug target/81763] Issues with BMI on 32bit x86 apps on GCC 7.1+

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81763

--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Haven't managed to reproduce it e.g. with
long long
foo (long long *p, int q, unsigned r1, unsigned r2)
{
  int t, u;
  asm ("" : "+a" (p), "+b" (q), "+d" (r1), "+c" (r2), "=S" (t), "=D" (u));
  unsigned long long r = ((unsigned long long) r2 << 32) | r1;
  long long a = p[q] & ~r;
  asm volatile ("" : "+A" (a) : "S" (t), "D" (u));
  return a;
}