[Bug tree-optimization/97964] Missed optimization opportunity for VRP

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97964

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #4)
> Note, trunk handles it fine again starting with
> r11-4755-g22984f3f090921b5ac80ec0057f6754ec458e97e
> So I guess we should just add the testcase (perhaps use a parameter instead
> of volatile etc.) and close, ranger is not backportable and even smaller VRP
> improvements might be too risky.

Agreed.