> Currently unaligned YMM and ZMM load and store costs are cheaper than > aligned which causes the vectorizer to purposely mis-align accesses > by adding an alignment prologue. It looks like the unaligned costs > were simply copied from the bogus znver4 costs. The following makes > the unaligned costs equal to the aligned costs like in the fixed znver4 > version. > > Pushed as obvious (matching the znver4 change). > > * config/i386/x86-tune-costs.h (znver5_cost): Update unaligned > load and store cost from the aligned costs. Hi, I backported this patch to active branches (where Richi did not beat me)
Honza
