topic Re: Problem generating dyn files with icpx compiler in Intel® oneAPI DPC++/C++ Compiler

Problem generating dyn files with icpx compiler

tofushan — Fri, 02 Aug 2024 14:15:06 GMT

Hi,

I would like to generate .dyn files to obtain codecov report following this tutorial. However, I just realize that newer C++ compiler (icpx) does not have the corresponding flag (-pro-gen=srcpos) used by the older one (icpc) to generate the .dyn files. I also tried to use -fprofile-generate tag for icpx, but it generates a different file format (*.profraw), which I guess it cannot be used by profmerge or codecov.

I have been looking for a documentation or similar questions but still couldn't find a solution. Any feedback is appreciated!

Re: Problem generating dyn files with icpx compiler

Alex_Y_Intel — Fri, 02 Aug 2024 23:18:43 GMT

Try something like this, suppose your source file is test.c

icx -c -fcoverage-mapping -fprofile-instr-generate test.c
icx -c -fprofile-instr-generate -fcoverage-mapping -mllvm -spi-generate -mllvm -spi-filename=test.spi test.c
icx test.o -o test -fprofile-instr-generate
./test

Check where your llvm-profgen is:

icx --print-prog-name=llvm-profgen

It'll tell you something like this: /opt/intel/oneapi/compiler/2024.2/bin/compiler/llvm-profgen

/opt/intel/oneapi/compiler/2024.2/bin/compiler/llvm-profdata merge -o test.profdata *profraw

You should have 2 additional output: default.profraw, test.profdata

/opt/intel/oneapi/compiler/2024.2/bin/compiler/llvm-cov report -format=xml -instr-profile=test.profdata test.spi

You'll get some output about coverage info in xml format.

You can also send the output to another xml file:
/opt/intel/oneapi/compiler/2024.2/bin/compiler/llvm-cov report -format=xml -show-regions-in-xml -instr-profile=test.profdata test.spi > cov.xml

https://llvm.org/docs/CommandGuide/llvm-cov.html

Re: Problem generating dyn files with icpx compiler

tofushan — Tue, 06 Aug 2024 13:46:42 GMT

Hi,

Thanks for your response! I would like to try your method, but is there a way to generate .dyn files that can be used by codecov?

Re: Problem generating dyn files with icpx compiler

Alex_Y_Intel — Fri, 09 Aug 2024 22:09:41 GMT

not with icx.
codecov doesn't understand the profile generated by icx