[Bug tree-optimization/115825] [11/12/13/14 Regression] Loop unrolling increases code size with -Os

[gjl at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115825

--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
How is the tree-ssa passes quering the costs?  Does it bake RTX patterns, or is
it again some implicit assumptions without looking at actual (estimated) real
costs?