<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/102388>102388</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [llvm-lit] Unsupported |& redirection syntax in lit internal shell
        </td>
    </tr>

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

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          connieyzhu
      </td>
    </tr>
</table>

<pre>
    lit tests across bolt are failing with lit’s internal shell due to unsupported `|&` syntax. 

Example error message:

```
UNRESOLVED: BOLT :: X86/linux-static-calls.s (229 of 453)
******************** TEST 'BOLT :: X86/linux-static-calls.s' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# shell parser error on RUN: at line 11: /usr/local/google/home/harinidonthula/llvm-project/build/bin/llvm-bolt /usr/local/google/home/harinidonthula/llvm-project/build/tools/bolt/test/X86/Output/linux-static-calls.s.tmp.exe --print-normalized -o /usr/local/google/home/harinidonthula/llvm-project/build/tools/bolt/test/X86/Output/linux-static-calls.s.tmp.out --keep-nops=0    --bolt-info=0 |& /usr/local/google/home/harinidonthula/llvm-project/build/bin/FileCheck /usr/local/google/home/harinidonthula/llvm-project/bolt/test/X86/linux-static-calls.s
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzMVF2L4zYU_TXyy8VGke3YfvBDNomhMOzA7kzpq2zfxOrKkpGudjPz64uchE7bKZR2HgoiQh85vuecqyO9V2eD2LLyEysPiQw0WdcO1hiFL69TSHo7vrRaERB68iAHZ72H3moC6RBOUmllzvBD0QRaETsKVnPWNB6UIXRGavATag1jQCALwfiwLNYRjsC2nFV7JrZsy8G_GJKXDBg_ML67_h4vcl40AjpnHczovTwjy3dv70SQ61iXz5-_HL8-Pvx8PLB8B58eH54g_iHfwS_1lolOKxMuqSdJakgHqbXPPDBRC9GAPUFR5kw0N2Tx7wc8Hb8-ARPVP6uAiQq63U8PxwP8l6_eVVMEeztGpWDzVqu9nWdpRngMtASKtD2NNlCkfFc1Te_s85tzi3Qe3c0Ea-DL8-eILAm0MgibTVwx0QXvIj07SM1Ed7b2rJGJbrLzOkmnjBqtoSloGS_q73O6OPsrDsRE1welxzgrcz9cu-zDgMla7ePa6rgd-5mJ7urJVZC_MSejecnwgpCmi1OGUmPdLLV6xRFS-38p0AaCNP2GuKTGLp7lBw4AkK4qpsqc7Lp1fXAfbVenNO4nHL59APA77N99Mn98_cnY5mOTNzLBdlOJnG-ruiiTqd2cZC_qcmh4gcW2LwuZy7wv-dDwcWh6TFQruCh4zSuxKStRZnVenU5lUw8FjrwcJCs4zlLpLFaaWXdOlPcB2w0XeV0nWvao_ZqgQhj8AespEyIGqmuvnRzOnhVcK0_-dxhSpNfoXe_E9CwP8Pw2IK9mORyVw4GUNbeYBGVi2v4pY5PgdDsRRfd3THRRfUVT6LPBzjel_yr4Wm7suxuf7634LQAA___X8uTs">