<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88080>88080</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            How to use 'prepare-code-coverage-artifact.py' correctly？
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          cpython-java
      </td>
    </tr>
</table>

<pre>
    # Description
I'm trying to get coverage during llc exec.

1. firstly, cmake by cmd：

`cmake -S llvm -B buildnin -G Ninja -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DLLVM_BUILD_RUNTIME=Off -DCMAKE_BUILD_TYPE=Release -DLLVM_BUILD_INSTRUMENTED_COVERAGE=ON -DLLVM_CODE_COVERAGE_TARGETS=llc -DLLVM_PARALLEL_LINK_JOBS=1`

2. then, build llc：
`ninja llc`

3. run `llc test_coverage.bc`, some files whose names end with ".profraw" are written to  dir "profiles". 
4. finally, I want to use 'prepare-code-coverage-artifact.py' to analyse 'profiles' to get report. But when I use cmd `python ../llvm/utils/prepare-code-coverage-artifact.py -profile_data_dir ./profiles -report_dir . -host_llvm_profdata ../llvm-profdata -host_llvm_cov ../llvm-cov`, an error happened：
```
usage: prepare-code-coverage-artifact.py [-h] [--only-merge]
                                         [--preserve-profiles]
                                         [--use-existing-profdata USE_EXISTING_PROFDATA]
                                         [--unified-report]
                                         [--restrict [R [R ...]]]
                                         [-C COMPILATION_DIR]
                                         host_llvm_profdata host_llvm_cov
                                         profile_data_dir report_dir
                                         [B [B ...]]
prepare-code-coverage-artifact.py: error: argument -h/--help: ignored explicit argument 'ost_llvm_profdata'
```

I don't know how to solve it. If anyone could help me, I would be very grateful!!!
</pre>
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