[Bug tree-optimization/81346] Missed constant propagation into comparison

[gergo.barany at inria dot fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81346

--- Comment #1 from Gergö Barany <gergo.barany at inria dot fr> ---
Sorry, forgot to add the command line. I use gcc -O3 on all platforms