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Earlier quoted context omitted.
that would be painfully slow, as it stands now, qbe is actually quite a lot faster than gcc and clang.
So the 70% performance was about compiler performance, not compiled code performance?
How does this compare to libfirm[1]? 1. http://pp.ipd.kit.edu/firm/
It's much much smaller (I think libfirm is over 100kloc, QBE is about 6k). But the major difference is the IL: I use a human-readable and easily-printable text IL. This means that you don't need a graph-viewing tool to read the IL (it's just text) and that you can modify the IL between two passes super easily. This simple IL is a blessing when debugging a compiler. I think QBE also has better support for the x64 ABI.…