[llvm-dev] PSA: Potential lit workflow change

[Zachary Turner via llvm-dev]

s/run this lit target manually/run this CMake target manually (e.g. `ninja
llvm-lit`)/

On Wed, Sep 13, 2017 at 11:42 AM Zachary Turner <zturner at google.com> wrote:

> llvm-lit is already put into <output-tree>/bin by CMake.
>
> There is a CMake target called `llvm-lit` that will generate the
> <output-dir>/bin/llvm-lit script.  If you built only a few specific llvm
> targets such as FileCheck, etc then you may need to run this lit target
> manually.  If you just run "ninja" for example, or "ninja check-llvm", it's
> automatically generated.
>
> On Wed, Sep 13, 2017 at 11:39 AM Vedant Kumar <vsk at apple.com> wrote:
>
>> Thanks for working on this.
>>
>> One question: do you know what's the fastest way to create a working
>> <output-tree>/bin/llvm-lit program? By 'working', I mean: assuming I've
>> already built llvm-config and the relevant test dependencies (FileCheck,
>> opt, etc), I can run llvm-lit on a single test.
>>
>>
>> On Sep 13, 2017, at 9:19 AM, Zachary Turner via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>
>> Hi all, I've got https://reviews.llvm.org/D37756 up for review currently
>> which simplifies a lot of the logic in our lit config files.
>>
>> For most people, this will be completely transparent and "just work", but
>> it breaks one workflow that people should be aware of.
>>
>> Problem: If you run lit by putting llvm-config in your path and then
>> running <source-root>/utils/lit/lit.py <source-root>/<path-to-test-file>
>> then this is not going to work anymore.
>>
>> Luckily, there's an easy fix:
>>
>> Solution: Run <output-tree>/bin/llvm-lit.py
>> <source-root>/<path-to-test-file>
>>
>>
>> Will llvm-lit.py be added to <output-tree>/bin, or is this supposed to be
>> <output-tree>/bin/llvm-lit?
>>
>> vedant
>>
>>
>> Happy to answer any questions here or on the code review.
>>
>> _______________________________________________
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>> llvm-dev at lists.llvm.org
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>>
>>
>>
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