message: Enable Cranelift optimizations when optimizing
  LICM in Cranelift has been fixed recently
diff: @@ -283,8 +283,6 @@ fn build_isa(sess: &Session, enable_pic: bool) -> Box<dyn isa::TargetIsa + 'stat
  flags_builder.set("enable_simd", "true").unwrap();
  - // FIXME(CraneStation/cranelift#732) fix LICM in presence of jump tables
  - /*
  use rustc_session::config::OptLevel;
  match sess.opts.optimize {
  OptLevel::No => {
  @@ -297,7 +295,7 @@ fn build_isa(sess: &Session, enable_pic: bool) -> Box<dyn isa::TargetIsa + 'stat
  OptLevel::Size | OptLevel::SizeMin => {
  sess.warn("Optimizing for size is not supported. Just ignoring the request");
  }
  - }*/
  + }
  let flags = settings::Flags::new(flags_builder);
  