[Bug tree-optimization/103725] [9/10/11/12 Regression] warning: assuming signed overflow does not occur when simplifying conditional to constant

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103725

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |7.1.0, 7.5.0
      Known to fail|                            |10.1.0, 8.1.0
   Last reconfirmed|                            |2021-12-18
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
            Summary|warning: assuming signed    |[9/10/11/12 Regression]
                   |overflow does not occur     |warning: assuming signed
                   |when simplifying            |overflow does not occur
                   |conditional to constant     |when simplifying
                   |                            |conditional to constant

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---


int t = i.c >= b ? i.c - b : i.c;
int t1 = i.c + 1 >= b ? i.c + 1 - b : i.c + 1;

I think the warning is happening when jump threading the above in DOM.
I don't think the warning makes sense really because we are inside a loop after
all.