[PATCH] D28634: [buildbot] Extend libomp builder to test bot standalone and in-tree builds with and without clang bootstrapping.

[Samuel Antao via Phabricator via llvm-commits]

sfantao created this revision.
sfantao added reviewers: gkistanova, hfinkel, Hahnfeld, gribozavr.
sfantao added subscribers: llvm-commits, carlo.bertolli, arpith-jacob, grokos, caomhin.

This patch extend the exiting libomp builder with a set of new option to control the creation of standalone and in-tree builds. With this patch the following configurations can be tested:

- in-tree build of libomp
- standalone build with host compiler
- standalone build with latest clang

The new functionalities are activated for the slave `ppc64le-nvidia-K40. The maximum number of jobs was increased so that the clang in-tree compile runs a little faster. For the other libomp slave, `gribozavr4`, the behavior is unchanged except for a slightly different naming of the steps.

A new build category was created to distinguish libomp builds that depend on llvm and clang.


https://reviews.llvm.org/D28634

Files:
  buildbot/osuosl/master/config/builders.py
  buildbot/osuosl/master/config/slaves.py
  buildbot/osuosl/master/master.cfg
  zorg/buildbot/builders/Libiomp5Builder.py

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