<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/85602>85602</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Clang LTO doesn't work for armv6 because ld64 doesn't recognize armv6k as armv6
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          Un1q32
      </td>
    </tr>
</table>

<pre>
    Linking a binary for armv6 with LTO normally gives this error

```
ld: warning: ignoring file /tmp/vi-1e7fe9.o, lto file was built for unknown bitcode architecture which is not the architecture being linked (armv6): /tmp/vi-1e7fe9.o
Undefined symbols for architecture armv6:
  "_main", referenced from:
      start in crt1.3.1.o
ld: symbol(s) not found for architecture armv6
clang: error: linker command failed with exit code 1 (use -v to see invocation)
```

however doing this can make it work:

disassemble the llvm object with `llvm-dis`
replace the line `target triple = "armv6k-apple-ios"` with `target triple = "armv6-apple-ios"`
rebuild the object with `llvm-as`
repeat for each object
link the objects with lto
</pre>
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