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Re: Fix PR rtl-optimization/15242 - duplicate computed gotos
> > this patch duplicates computed gotos so that there are no jumps to
> > computed jumps. This has a positive impact on performance.
> > The duplication is done as late as possible because it makes a dense CFG.
> Is this intended to run when basic-block reordering is otherwise
> disabled? Because this is intended to happen already at -O2...
basic-block reordering avoids creating dense CFGs because other
optimizations would consume much time so this is needed even
if basic-block reordering is enabled.