[PATCH] D158864: [Code Coverage] Add a script to check code coverage of a patch

[Shivam Gupta via Phabricator via llvm-commits]

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This patch is the second part of https://llvm.org/OpenProjects.html#llvm_patch_coverage

This script craete a patch from the HEAD commit, extract modified or added source files, test case files 
and source code lines, add coverage instrumentation for the affected source files, runs Lit tests,
and records which test cases cause each counter to be executed. We then report the number of test 
cases executing the counter and the number of test cases executing the counter that are also changed
in some way by the patch. Thus providing developer the information of inadequately tested source lines.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D158864

Files:
  llvm/utils/git-check-coverage

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