llvm dev - May 2017 - Request for local llvm source code coverage for developers

Hi,

 This request is related to a previous thread titled ‘A new code coverage
bot’ (http://lists.llvm.org/pipermail/llvm-dev/2016-September/105094.html).

“The purpose of the bot is to make high-quality coverage reports available
to

llvm developers, and to provide additional testing for clang's code coverage

implementation”

I am wondering if there is a framework in place to get the code coverage
information locally.

I have to get code coverage information of a llvm development branch which
resides on my local machine. I also need to get the coverage numbers by
running my own set of test suites.

Thanks and Best Regards

Arvind
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Hi Arvind,

You can use "llvm/utils/prepare-code-coverage-artifact.py" to generate
coverage reports. Here's how:

1) Build llvm with coverage reporting enabled.
See:
https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#collecting-coverage-reports-for-the-llvm-project
<https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#collecting-coverage-reports-for-the-llvm-project>
2) Collect profiles by running tests.
3) Use prepare-code-coverage-artifact.py in "--only-merge" mode to
merge your profiles together.
4) Use prepare-code-coverage-artifact.py again to emit an html report, passing
in "--use-existing-profdata path/to/merged/profile".
If you need coverage reporting for multiple binaries, pass in the paths to the
binaries you're interested in, along with the "--unified-report"
option.
If you only want coverage for a particular set of files or directories, you can
specify this with the "--restrict" option.

best,
vedant
> On May 31, 2017, at 9:23 AM, Arvind Sudarsanam via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> 
> Hi,
> 
>  This request is related to a previous thread titled ‘A new code coverage
bot’ (http://lists.llvm.org/pipermail/llvm-dev/2016-September/105094.html
<http://lists.llvm.org/pipermail/llvm-dev/2016-September/105094.html>).
> 
> 
> “The purpose of the bot is to make high-quality coverage reports available
to
> 
> llvm developers, and to provide additional testing for clang's code
coverage
> 
> implementation”
> 
> I am wondering if there is a framework in place to get the code coverage
information locally.
> 
> I have to get code coverage information of a llvm development branch which
resides on my local machine. I also need to get the coverage numbers by running
my own set of test suites.
> 
> Thanks and Best Regards
> 
> Arvind
> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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