Register Allocator Tests

Thomas Jakway tjakway at
Tue Oct 11 21:50:06 UTC 2016

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.

On 10/11/2016 02:13 PM, Ben Gamari wrote:
> Thomas Jakway <tjakway at> 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

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