<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/95274>95274</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [X86] [Crash] LLVM ERROR: Do not know how to split the result of this operator!
        </td>
    </tr>

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

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

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

<pre>
    FP vector conversion test fails for skylake-avx512 CPU. Works fine for sapphirerapids CPU.
```
$ llc bugpoint-reduced-simplified.ll -mcpu=skylake-avx512
SplitVectorResult #0: t12: v1024i16 = X86ISD::CVTPS2PH undef:v1024f32, TargetConstant:i32<4>

LLVM ERROR: Do not know how to split the result of this operator!
```
Simplified reproducer:
```
; ModuleID = 'bugpoint-reduced-simplified.bc'
source_filename = "LLVMDialectModule"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: memory(argmem: readwrite)
define void @kernel(ptr %0) local_unnamed_addr #0 {
  %2 = fptrunc <1024 x float> poison to <1024 x half>
  store <1024 x half> %2, ptr %0, align 2
  ret void
}

attributes #0 = { memory(argmem: readwrite) }

!llvm.module.flags = !{!0}

!0 = !{i32 2, !"Debug Info Version", i32 3}
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJyslMtu47gShp-G3hRkiEVd7IUWjtXGaaAbJ0h6Mr0LaKkkcUyRAkk5ydsPKDuXvmBmM4AhkWb9pb8-Fim9V70hqlh-w_J6JecwWFcpMid7Vs2wOtr2pTrcwpmaYB001pzJeWUNBPIBOqm0h8468KcXLU-UyPNzzhH2t3-s4U_rTh46ZegSIqdpUI6cnFTrlxCW1izdsSK9_i5TzEDrBo5zP1llQuKonRtqE6_GSatOUbvWGpKxmWYm6h-_fElxP2kVHhbPd-RnHYChSJnYQeAYX2eeYqZ4AUzU8H1TfL6vmdgxsds_fLu9x9v_wWxa6pjYLZGdQIZ7-CZdT2FvjQ_SBCZ2SiAT-4yJT1fry_PLl4ev8Onu7v938VO1BWMDnIx9gsE-QbDgoz0IA4G7uLMdhEF5sBM5GaxjyH-L5v6NADianI1cXDT-W47iBr7adtb0uV7qZFj-E9Njw7C8SL2dXUOPndJk5EhXNcbCaiU1NeGSmOEVeFjIQCuD1PLFzuFVQsnIxI6SCcvIP_LaCYxT_uM0jopseSTqbcBxw8SO4ybpNul1ZJa_ild5kSX3MewnK8GpSb85f94Uj0WWzCZug0m0MvNz0pv5TfWO7DCbJsQO34XgfNzBkUbrXhhupOtHivWAI9k-ORWI4fYibWlp9LNVLbAsPZEzpBlupuCAYZ4y3IK2jdSPs4lM20fZtm7pS2DlzSUJxFBcTHdTcLNpgIl97EB4hk5bGZj4BJNVPp5A-2FxkLp7a0MAH6yjX5eX9LGT313tQWrVG8BXqaOwVHElUtYfAckQnDrOgfzVecRb3vwbIvgpDUOu9Xlcj0sXrTste3_dKh5hIE9_VaQfIpRAWAqJU8SajnMPn01n4eFyP8WNxT3EOPGe6vWArNpKtFuxlSuqeMk3yEW-TVdDlXZFK3neHYXcirSRRdrk6VF2JEVRtrxcqQpTzNKCIy-F4Om6K0S2LQu-RZ4V2ZazLKVRKr1eCrSuXynvZ6q2OZbZSssjab9ct4iGnmBZjGbzeuWqqEmOc-9Zlmrlg3_PElTQyz39fVOwvAaW3-yd9EMc_ycXzmp2uhpCmGLPMzwwPPQqDPNx3diR4SE6ub6Sydm_qAkMD4t_z_Bwqe9c4d8BAAD__3_Q3IE">