https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84908
--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Andy Lutomirski from comment #9) > I haven't fully dug into this, but I do one one immediate question: why is > GCC generating a jump table for a five-entry switch statement if retpolines > are on? This has got to be a *huge* performance loss. The retpoline > sequence is very, very slow, and branches aren't that slow. A five-entry > switch is only three branches deep. I opened: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86952
