[llvm-dev] [pre-merge testing] improvements + new Windows builds (original) (raw)

Chris Lattner via llvm-dev llvm-dev at lists.llvm.org
Mon May 11 22:57:01 PDT 2020

On May 11, 2020, at 8:03 AM, Christian Kühnel via llvm-dev <llvm-dev at lists.llvm.org> wrote:

Hi folks, After we launched the pre-merge testing for all users on Phabricator in March [1], we’ve been working on a few improvements we’re launching now. They have been in beta testing for a while.

Hi Christian, Mikhail & other contributors,

Thank you for driving this, I really appreciate the “smoke test” that the presubmits provide - this has saved me from submitting embarrassing bugs that didn’t affect the config I was testing.

Improvements ============ Here’s an overview of the changes, the details are described in the user documentation [3]: * Windows builds and tests were enabled for all users, using Visual Studio 2019. * To save time and resources and hide unrelated failures, we’re only building and testing the projects that were affected by changes to certain folders in the monorepo. * We also enabled more projects to give better test coverage. * The builds are now split into 3 separate steps, visible to Phabricator: 1. Apply the patch from Phabricator and store the result in a branch on GitHub [2]. This branch is then used in steps 2 and 3. 2. Run the Linux builds and tests. 3. Run the Windows builds and tests, in parallel to step 2.

Wow! Windows configs are some of the most challenging to keep working, thank you for integrating these!

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