[Bug middle-end/78769] [7 Regression] Incorrect arithmetic optimization for (a < 0) << 29 >> 1;

[babokin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78769

--- Comment #2 from Dmitry Babokin <babokin at gmail dot com> ---
I've used r243504, the latest available on git://gcc.gnu.org/git/gcc.git