[Bug tree-optimization/61743] [4.10 Regression] Complete unroll is not happened for loops with short upper bound

[ysrumyan at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61743

--- Comment #8 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
Richard,

I tested both proposed fixes and i turned out that the first one is preferable
since performance of benchmark came back. Note that hoisting 2nd vrp pass gave
us another 14% slowdown but I did not investigate it.

Should I tested your fix or you do it yourself?

Thanks.