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    <head>
      <base href="http://llvm.org/bugs/" />
    </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 --- - [x86-64] Incorrect values for spill locations for callee saved registers"
   href="http://llvm.org/bugs/show_bug.cgi?id=19905">19905</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[x86-64] Incorrect values for spill locations for callee saved registers
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>new bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>sanjoy@playingwithpointers.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=12582" name="attach_12582" title="Full llc output">attachment 12582</a> <a href="attachment.cgi?id=12582&action=edit" title="Full llc output">[details]</a></span>
Full llc output

If I run the the following program through llc

declare void @llvm.eh.unwind.init()

define coldcc void @calls_unwind_init() {
  call void @llvm.eh.unwind.init()
  ret void
}

I get incorrect .cfi directives for the spill locations for CSR registers.  Eg.
I see

    .cfi_offset %rbx, -384

when, from manually inspecting the generated assembly, it should be

    .cfi_offset %rbx, -120

(I've attached the full output)</pre>
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