https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105966
--- Comment #4 from jbeulich at suse dot com --- (In reply to Richard Biener from comment #3) > Is not having AVX512VL relevant in the real world? Wasn't the Xeon-Phi line of processors lacking VL? I have no idea how widespread their use (still) is, though. > Some operations (division) require different handling than zero-extending, > masking might be a way out but that might turn out to be (way?) more > expensive. By expensive, you mean in terms of compiler changes? I wouldn't expect execution to be severely affected by using masking, especially when it's zeroing-masking. Or if it is, then likely because there was not enough pressure to make this mode work efficiently (after all there were various performance quirks when AVX and AVX512F were first introduced).
