[Bug middle-end/122234] attribute assume should be used to peel off part of the first N iterations of the loop

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122234

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
We do not implement this kind of prologue peeling on GIMPLE (only full loop
peeling).  I'm also not sure if doing this would be profitable on modern
uarchs.