[Bug tree-optimization/71428] [7 Regression] wrong code with -Os -fno-tree-forwprop (breaks in the .bswap dump)

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71428

--- Comment #7 from Zdenek Sojka <zsojka at seznam dot cz> ---
*** Bug 71427 has been marked as a duplicate of this bug. ***