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    <head>
      <base href="http://llvm.org/bugs/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - ARM exception vectors - error: constant expression expected"
   href="http://llvm.org/bugs/show_bug.cgi?id=20610">20610</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>ARM exception vectors - error: constant expression expected
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>LLVM assembly language parser
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>mpj@rowley.co.uk
          </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>This is a common way of implementing ARM exception vectors. The GNU assembler
eats this the LLVM assembler produces 

error: constant expression expected

  ldr pc, [pc, #reset_handler_address - . - 8]
  ldr pc, [pc, #undef_handler_address - . - 8]
  ldr pc, [pc, #swi_handler_address - . - 8]
  ldr pc, [pc, #pabort_handler_address - . - 8]
  ldr pc, [pc, #dabort_handler_address - . - 8]
  nop
  ldr pc, [pc, #irq_handler_address - . - 8]
  ldr pc, [pc, #fiq_handler_address - . - 8]

reset_handler_address:
  .word reset_handler
undef_handler_address:
  .word undef_handler
swi_handler_address:
  .word swi_handler
pabort_handler_address:
  .word pabort_handler
dabort_handler_address:
  .word dabort_handler
irq_handler_address:
  .word irq_handler
fiq_handler_address:
  .word fiq_handler</pre>
        </div>
      </p>
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