<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylU8uOnTAM_RrYWKAQ4HJZsGBe6khTVRp10W1CDKQKBCVhbunX10Db0axHQsGxnZPjY0datTVfNIQRHUY8g-cJgtv0PECwcPdjXwX069wFbWeQG4gZhFIOvU_h-yhCxCsPo72BBmUJhzx5G7GHiLVR_giTfQOX8YjfQ8RL9h6Qvw7_uT_W_2g3MggMPdwbMQ_veDyLyjs9iQGj8iHi1zGExe9h_kTf6tElR9Sngw7jKndPZ-eAc0g7O1FOzbKi5tWFzKzMWHnlBU-qHCteV31Sd4wnRaH6RCIvkkqpqu6Fqgp1SRciwuuTyLM_BSMxNiqL7m8dCnNacBPbLtuhhvagtMMumA30TF6qGW5Ezq4BVr_r7BgVrLsRKNf20NnVeUI2hKj2Q5SGUf503twav8MieDEh5So80ABnIQ0qsEvQk_4t9m75U0MqfDEYkBhIoXZOh6SwGNFRuNfOB3h5eIW7x6dvr4-wrH4knB07TdNYNbmq81rEYiXWrmln5axWX616sUKhi1dnmo-NOMX_q7gxb_9-yeLsT9KCttr7FT0ZZV5kLB6bvi9qdi2La1ZkNe_LUuUlslLWeCny7IqxERKNb2gAIs5npHnbIcimUYg_z0A3nHHOMl5yVlY5T0u8opKykjK_XFidRwXDSWiT7jipdUPsmgNSroOnoNE--Peg8F4PM-JBmBgGHcyxaVvXjeQB4Sd4s4ZaZXDvsd8nQXh6bgGnxTrhNuit-_iCWqBRiA_uzUH8Dy0RL-A>53410</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [AArch] asm volatile uses r0 as a temporary for mov r12, * ?
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
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    <tr>
      <th>Reporter</th>
      <td>
          AndroidModLoader
      </td>
    </tr>
</table>

<pre>
    Hi there! Im trying to BX to a function by an address. That's how i do that:
> mov r12, %0
> bx r12

That's what does Clang:
Is there any **real** way to do this directly into r12 without using r0 which is of course already in use?
Also the same code with enabled optimizations does completely bad thing: places first LDR BEFORE push opcode...
</pre>
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