Exclude useless plots in benchmark script #655
Description
Describe the feature
Some passes are only benchmarked on Solar because there is no way to do an equivalent test on other parsers/compilers, for example lowering. In these cases the graph looks kind of useless, so it should be excluded:
I think this is only the case for the relative performance graph when there is only 1 parser/compiler benchmarked.
Additional context
Related #654