[Bug tree-optimization/84777] -Os inhibits all vectorization

[linux at carewolf dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84777

--- Comment #6 from Allan Jensen <linux at carewolf dot com> ---
Great. Your patch worked with 90% of the marked loops!

The remaining report things like this with -fopt-info-vec-missed:

note: not vectorized: relevant stmt not supported: idisty.872_437 = (unsigned
int) idisty_386;
note: bad operation or unsupported loop bound.

But the result is already pretty good for -fopenmp with manually marked loops.