Validating with LLVM

[Ben Gamari]

Travis Whitaker <pi.boy.travis at gmail.com> writes:

> Hello GHC Devs,
>
> I'm working on a very tiny patch for GHC. The patch concerns the LLVM code
> generator, and I'd like to run the validate script. ./validate ignores mk/
> build.mk (which is probably correct) and it doesn't seem to be using the
> LLVM backend. LLVM tools are on the PATH; I'm working from the ghc-8.4
> branch so I'm using LLVM 5.
>
> Is it possible to validate with the LLVM backend? If not, what's considered
> a sufficiently thorough test? Apologies if I'm missing something obvious.
>
The validate script doesn't support this directly. I would do the
following:

    ./validate --build-only
    make test WAY=llvm

That should do what you want (and IIRC is what we do in the LLVM CI
script).

Cheers,

- Ben
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