>> We now saturate at -O3. > > We actually don't...-O4 still implies -fvectorize. Otherwise I would say -O4 > should warn that it doesn't do anything any more, at least for one release. >
We do the same for -O3: $ ./build/bin/clang -c -O4 -v test.c > o4.log 2>&1 $ ./build/bin/clang -c -O3 -v test.c > o3.log 2>&1 $ diff o3.log o4.log I agree that warning at -OX with X > 3 is probably a good idea. Cheers, Rafael _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
