[Bug target/82418] Division on a constant is suboptimal because of not using imul instruction

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82418

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
If I time it, gcc's code is several times faster than clang's on skylake. Why
is clang's version supposed to be better?