<html>
    <head>
      <base href="http://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - llvm-cov show -format html: index says 0/0 lines covered for a source file with some non-0 line counts"
   href="http://bugs.llvm.org/show_bug.cgi?id=31980">31980</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>llvm-cov show -format html: index says 0/0 lines covered for a source file with some non-0 line counts
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>tools
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>opt
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jay.foad@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>To reproduce:

$ cat cov.c
#include <stdio.h>
int main() {
#include "cov.h"
}
$ cat cov.h
int i;
for (i = 0; i < 10; i++)
        printf("hello\n");
$ clang -fprofile-instr-generate -fcoverage-mapping -o cov cov.c
$ ./cov
hello
hello
hello
hello
hello
hello
hello
hello
hello
hello
$ llvm-profdata merge default.profraw -o merged.profdata
$ llvm-cov show -instr-profile merged.profdata cov -format html -output-dir out

Now out/.../cov.h.html shows line coverage counts of 1, 11 and 10. But
out/index.html says the line coverage for cov.h is "- (0/0)"!

I'm using llvm and clang built from svn r295326.</pre>
        </div>
      </p>


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