[Bug c/69306] wrong code with int128 @ x32

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69306

--- Comment #4 from Zdenek Sojka <zsojka at seznam dot cz> ---
(In reply to Zdenek Sojka from comment #3)
> (In reply to H.J. Lu from comment #1)
> > typedef unsigned long int uint64_t;
> > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ It should be long long.
> 
> Sorry, you are right, originally it was __UINT64_TYPE__, but the macro got
> expanded.
> Strange the testcase works at other 32bit architectures.

... on 32bit architectures, the following is undefined:
  *p64_2 >>= *p64_1 & 63;
so, yes, sorry for that.