[Bug target/103028] ICE in extract_constrain_insn, at recog.c:2670

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103028

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You should be able to hit this without -fharden-conditional-branches

Try something like:

unsigned char x;
int foo(void)
{
  unsigned long long i = x;
  i = i + 0x80000000;
  unsigned long long t = 0xffffffff;
  unsigned long long tt, ii;
  asm("":"=g"(tt):"g"(t));
  asm("":"=g"(ii):"g"(i));
  if (i > t) {
    if ((ii <= tt))  __builtin_trap();
    return x;
 } else if (!(ii <= tt))  __builtin_trap();
  return 0;
}