[llvm-bugs] [Bug 35459] New: llvm-cov: Can't combine coverage from multiple binaries

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=35459

            Bug ID: 35459
           Summary: llvm-cov: Can't combine coverage from multiple
                    binaries
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: dennis.felsing at sap.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 19484
  --> https://bugs.llvm.org/attachment.cgi?id=19484&action=edit
run script to reproduce the issue

Creating two separate binaries creating a common coverage report for them does
not work properly. Some files are missing, coverage in others is shown as lower
than it actually is. This is useful in the case of having multiple unit test
binaries for parts of a project. Minimal example attached.

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