I read somewhere that fixing the graph register allocator would be a good project so I thought I'd look into it. I couldn't find any tickets about it on Trac though so I was poking around for tests to see what (if anything) was wrong with it.

After I sent that last email I googled around for how to write ghc unit tests and this is the only thing I found.  Is it not possible to unit test GHC?  If not are there plans/discussions about this?  I think it'd help document the code base if nothing else and it'd be a good way to get my feet wet.

Thomas Jakway <tjakway@nyu.edu> writes:

Can anyone point me to the register allocator tests (especially for the 
graph register allocator)?  Can't seem to find them and grepping doesn't 
turn up much (pretty much just 
testsuite/tests/codeGen/should_run/cgrun028.h).

What sort of tests are you looking for in particular? I'm afraid all we
have are regression tests covering the code generator as a whole.

Cheers,

- Ben