Re: DEBUG-on

Simon Peyton Jones via ghc-devs writes:

Ben

Hi Simon,

We don't really test with a DEBUG-enabled compiler. And yet, those assertions are all there for a reason. In our CI infrastructure, I wonder if we might do a regression-test run on at least one architecture with DEBUG on? e.g. https://ghc.haskell.org/trac/ghc/ticket/14904

We actually now do precisely this. Since a few weeks ago we have a nightly `validate --slow` (which enables -DDEBUG in the stage 2 compiler) job that runs on the CircleCI infrastructure. Thanks to Alp's work it even appears to pass. However, in light of #14904 I wonder if it we are failing to catch an exit code since it sounds like it should have been failing. Cheers, - Ben