<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/72741>72741</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [llvm-exegesis] Values of registers r11 and rcx not set properly
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            tools:llvm-exegesis
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
            boomanaiden154
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          boomanaiden154
      </td>
    </tr>
</table>

<pre>
    Currently, llvm-exegesis fails to preserve the values of `%r11` and `%rcx` after they are set. A minimal example demonstrating this behavior for `%rcx`:
```asm
# LLVM-EXEGESIS-DEFREG RCX 5
# LLVM-EXEGESIS-DEFREG R14 127
# LLVM-EXEGESIS-DEFREG R15 0

cmpq $0x5, %rcx
cmovneq %r14, %r15

movq $60, %rax
movq %r15, %rdi
syscall
```
and a minimal example for `%r11`:
```asm
# LLVM-EXEGESIS-DEFREG R11 5
# LLVM-EXEGESIS-DEFREG R14 127
# LLVM-EXEGESIS-DEFREG R15 0

cmpq $0x5, %r11
cmovneq %r14, %r15

movq $60, %rax
movq %r15, %rdi
syscall
```
</pre>
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