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    <head>
      <base href="https://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 - DW_TAG_label for asm can have wrong source location"
   href="https://bugs.llvm.org/show_bug.cgi?id=42345">42345</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>DW_TAG_label for asm can have wrong source location
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

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

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </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>MC
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>paul_robinson@playstation.sony.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Noticed in passing while messing with other debug-info stuff lately:

For compiling a .s file with the -g option, we emit DW_TAG_label entries
for labels in the assembler source. The source locations for these will
always use the physical line in the .s file for DW_AT_decl_line, even if
there are #line directives in the file.  When we produce the .debug_line
section (implicit .loc directives) we use the info from #line if it's there.

This is easily seen if you look at llvm/test/MC/ELF/debug-hash-file.s
where the label's DW_AT_decl_file uses the filespec from the #line but
the DW_AT_decl_line is from the physical file.</pre>
        </div>
      </p>


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