Re: help validating a modified compiler?

Speaking for myself: I have not validated locally for quite a while. I just rely on CI. You can mark an MR as a "Draft" to avoid triggering a review. Instead of validating locally, I tend to just run the testsuite on the built GHC. This can be done with hadrian/build test -j<however many processors you have>. (You might want --flavour=<xyz> and --freeze1 --freeze2 there, too, to prevent recompilation.) Then I leave it to CI to do the full job. Richard

On Oct 11, 2021, at 3:23 PM, Norman Ramsey wrote:

I've made a minor change to GHC, and before submitting a PR, I'd like to validate the change. But I don't really know how to interpret the output of the `validate` script. Mine runs for about 40 minutes and then ends in an error:

# We are installing wrappers to programs by searching corresponding # wrappers. If wrapper is not found, we are attaching the common wrapper # to it. This implementation is a bit hacky and depends on consistency # of program names. For hadrian build this will work as programs have a # consistent naming procedure. if [ -L wrappers/ghc ]; then echo "ghc is a symlink"; fi ghc is a symlink cp: target 'dir/bin/ghc' is not a directory make: *** [Makefile:197: install_wrappers] Error 1

________________________________________________________ Executed in 39.60 mins fish external usr time 146.65 mins 0.00 millis 146.65 mins sys time 9.55 mins 1.60 millis 9.55 mins

I'm in the process of trying `validate` on a fresh checkout, but at 40 minutes per shot, I feel like I might be on the wrong track. Should I just create a merge request and rely on CI for the validation? Or do something else?

Norman

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