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llvm-mirror/utils/benchmark/releasing.md
Kirill Bobyrev 0f55045526 Pull google/benchmark library to the LLVM tree 
This patch pulls google/benchmark v1.4.1 into the LLVM tree so that any
project could use it for benchmark generation. A dummy benchmark is
added to `llvm/benchmarks/DummyYAML.cpp` to validate the correctness of
the build process.

The current version does not utilize LLVM LNT and LLVM CMake
infrastructure, but that might be sufficient for most users. Two
introduced CMake variables:

* `LLVM_INCLUDE_BENCHMARKS` (`ON` by default) generates benchmark
  targets
* `LLVM_BUILD_BENCHMARKS` (`OFF` by default) adds generated
  benchmark targets to the list of default LLVM targets (i.e. if `ON`
  benchmarks will be built upon standard build invocation, e.g. `ninja` or
  `make` with no specific targets)

List of modifications:

* `BENCHMARK_ENABLE_TESTING` is disabled
* `BENCHMARK_ENABLE_EXCEPTIONS` is disabled
* `BENCHMARK_ENABLE_INSTALL` is disabled
* `BENCHMARK_ENABLE_GTEST_TESTS` is disabled
* `BENCHMARK_DOWNLOAD_DEPENDENCIES` is disabled

Original discussion can be found here:
http://lists.llvm.org/pipermail/llvm-dev/2018-August/125023.html

Reviewed by: dberris, lebedev.ri

Subscribers: ilya-biryukov, ioeric, EricWF, lebedev.ri, srhines,
dschuff, mgorny, krytarowski, fedor.sergeev, mgrang, jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D50894

llvm-svn: 340809
2018-08-28 09:42:41 +00:00

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How to release

  • Make sure you're on master and synced to HEAD
  • Ensure the project builds and tests run (sanity check only, obviously)
    • parallel -j0 exec ::: test/*_test can help ensure everything at least passes
  • Prepare release notes
    • git log $(git describe --abbrev=0 --tags)..HEAD gives you the list of commits between the last annotated tag and HEAD
    • Pick the most interesting.
  • Create a release through github's interface
    • Note this will create a lightweight tag.
    • Update this to an annotated tag:
      • git pull --tags
      • git tag -a -f <tag> <tag>
      • git push --force origin