<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88168>88168</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            missed optimization, (x + 0.0) > y => x > y
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          zhengyang92
      </td>
    </tr>
</table>

<pre>
    ```llvm

define i1 @src(float %n2, float %n3) {
  %n0 = fadd float %n3, 0.000000e+00
  %n1 = fcmp ogt float %n0, %n2
  ret i1 %n1
}


define i1 @tgt(float %n2, float %n3) {
  %n1 = fcmp ogt float %n3, %n2
  ret i1 %n1
}
```

https://alive2.llvm.org/ce/z/wOonbv
https://godbolt.org/z/8Tz7zxP68

found in llm.c (https://github.com/karpathy/llm.c)

@dtcxzyw @regehr 
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJyUk9FynCAUhp_meMNkB4-swoUX2Wy9bS_6AgiotCg7gsmuT99B02bTSTsTx1HR88HPf35lCLafjKnheILjOZNLHPxcr4OZ-puceoFZ6_WthpLup3PPI9Az0Mf9qk1nJ0NsToDRMCtA3jkvIwE8Tgj4RN6GBaAgUJ12kmzvKIHiTDqp9fvCJ0IPdDsM4InSeybfGTVeiO_jHUcTty_8Wj6buGlL1Kvs6nyv_4NdxD5-dhf_VFR8StFvk--lDTFeAhSPgA1gI519NnhIXTj4uQdslAFsVsDm5auf2uePoN7r1rv4CqRa_n2t1uu3kt-v1Pll0sROxLnxoAgg_2saG4elPSg_AjY_5XyRcbgBNls5oHhnK6M6qut6e0mOzqY3w0wyXRdaFEJmps6rHEvORJVnQ12JvDVcSU6PrEJRKEE5FpRppbqy61hma6TIKKMir5go8gPVTOpcKl4eW6ENBUbNKK3740xmQ1hMzXle8szJ1riwZRxxMi9k-wiIKfJznZiHdukDMOpsiOFtlmijM_VoQzCa-Eu0o11ltH7a-8qvBPCUorqFovhCbikJ6eG6D7NldvV_fNz-p_32cJn9D6MiYLPpC6lRSf-vAAAA__94xAfQ">