https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92686
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2019-11-27 Ever confirmed|0 |1 Severity|normal |enhancement --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- It would be definitely nice to have this. Maybe add a tunable whether to use mask registers for SSE/AVX2? Is there any boost frequency penalty for using them? Using mask registers also looks like a way to reduce register pressure (in case the register pressure is not on the masks side).