[Bug tree-optimization/79088] [7 Regression] wrong code at -O2 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79088

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
This alone regresses gcc.c-torture/execute/pr77766.c and
gcc.c-torture/execute/pr78856.c