<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/158270>158270</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            OrcJitTests unittest ReOptimizeLayerTest.BasicReOptimization fails on windows
        </td>
    </tr>

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

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

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

<pre>
    `ReOptimizeLayerTest.BasicReOptimization` fails locally for me and on an internal bot (but doesn't seem to be failing on any upstream bots):

```
>ninja OrcJITTests && unittests\ExecutionEngine\Orc\OrcJITTests.exe
...
[----------] 1 test from ReOptimizeLayerTest
[ RUN      ] ReOptimizeLayerTest.BasicReOptimization
JIT session error: In graph <main>-jitted-objectbuffer, section .pdata: relocation target 0x22d3eea2000 (.text) is out of range of Pointer32 fixup at address 0x22d3eea2000 (<anonymous block> @ 0x22d3eea0014 + 0x0)
unknown file: error: SEH exception with code 0x3221225477 thrown in the test body.
Stack trace:


[  FAILED ] ReOptimizeLayerTest.BasicReOptimization (19 ms)
[----------] 1 test from ReOptimizeLayerTest (19 ms total)
```

Weirdly, running the unittest with `--gtest_filter=ReOptimizeLayerTest.BasicReOptimization` it passes.

---

cl.exe version:
```
Microsoft (R) C/C++ Optimizing Compiler Version 19.42.34435 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
```

I also tried building with clang but saw the same failure:
```
clang version 22.0.0git (https://github.com/llvm/llvm-project 4d24407e7d0ae66a8fef29f2100706d85706ae10)
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: C:\Users\gbhyamso\dev\llvm-project\build\bin
Build config: +assertions
```
</pre>
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