[Bug rtl-optimization/79388] [6/7 Regression] wrong code with -O -fno-tree-coalesce-vars

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79388

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
At -O2 vrp would normally optimize this already much earlier.