[Bug target/56309] conditional moves instead of compare and branch result in almost 2x slower code

[ysrumyan at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56309

--- Comment #34 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
Created attachment 36138
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36138&action=edit
simple reproducer

Use -O3 -std=c++14 options to compile and -fno-tree-loop-if-convert to get
better performance