<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/62879>62879</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [AArch64] Redundant conditional jump instruction when if and for use same condition
        </td>
    </tr>

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

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

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

<pre>
    * test: https://godbolt.org/z/9EGWbrc6e （the source of  [#53625](https://github.com/llvm/llvm-project/issues/53625) is simplified here）
```
int exclusion(int i, int j, int *mask) {
  int m;

  // we can see that condition nex_group already guard in statement for
  if (nex_group) {  // generate smarter assemble with if (1)
    for (m = 0; m < nex_group; m++) {
      if (mask[i] & ex1_bit[m] && mask[j] & ex2_bit[m]) return 1;
    }
  }

  return 0;
}
```
* For above case, as the condition of **for** and **if** is same （variable nex_group），so they have same function. while the clang generate different assemble, so the conditional jump instruction **cbz     w8, .LBB0_7** is redundant for exclusion.
</pre>
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