https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118720
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
b -= n < (uint32_t)(100000);
Can produce undefined behavior. because now you are doing `work-1` which is
before the array.
```
static constexpr void foo(uint64_t n, char* b)
{
uint64_t f0 = 429497 * n;
b[0] = fd[f0 >> 32][0];
b[1] = fd[f0 >> 32][1];
b[2 - (n < (uint32_t)(100000))] = '9';
}
```
Is the fix to the code.
