[Bug tree-optimization/118933] Missed optimization: __builtin_unreachable() does not work as expected on std::vector data compared to raw pointer and length

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118933

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
   Last reconfirmed|                            |2025-02-18
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Basically we lose the connection is what I am saying.

I wonder if we should not re-write the loop early on to be:
`for (__SIZE_TYPE__ i = 0; i < end - begin; i++)`

And then we won't lose the connection between the 2.

But that does not help.