Fortran compile flags for code coverage report

[tsreins]

Good Day,

When using the intel oneAPI compiler, looking at equivalent flags to create code coverage for fortran. These steps worked for c/c++ - now looking for Fortran equivalent please:

c/c++ instructions:

1) build with cflags -O0 -prof-gen=srcpos

2) run tests

3) run profmerge

4) run codecov

Thanks!

[Mark_Lewy]

Your steps should be similar for Fortran.

This is what I did on Windows/VS2019/IFORT a while ago :

1) Add /Qprof-gen:srcpos /Qcov-gen /Qprof-dir:path to all relevant projects. The path argument to /Qprof-dir must be the same for all projects to get a single pgopt.spi file.

2) Your program must exit via the end program statement to generate .dyn files. (i.e. I didn't get coverage when using STOP to exit).

See also Code Coverage Tool (intel.com)

[Barbara_P_Intel]

Be aware that code coverage is only available for ifort, not ifx.

ifort is deprecated and will be discontinued in late 2024. ifx is the new Intel Fortran Compiler. See this thread for more information.

[tsreins]

Good day - why is code coverage no longer supported for ifx? What is the alternative solution Intel will be providing? 

Thanks!

[Barbara_P_Intel]

As you know, ifx uses LLVM as its code generator plus some Intel optimizations. LLVM does not implement a code coverage feature and Intel hasn't added it.

I'm not aware of other solutions. I asked the developers, too. They aren't aware of other solutions either.

[Riccardo]

Hi Barbara, a quick search showed llvm-cov I believe that it should be possible to get it work with ifx. I would like to stress that reaching a high code coverage has become more and more important in the past few years, therefore this feature is very important.

Best regards,

Riccardo