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| Before opening a new issue, please search for keywords in the existing [list of issues](https://gitlab.com/libeigen/eigen/-/issues?state=opened) to verify it isn't a duplicate. |
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| |
| ### Summary |
| <!-- Summarize the bug encountered concisely. --> |
| |
| ### Environment |
| <!-- Please provide your development environment. --> |
| - **Operating System** : Windows/Linux |
| - **Architecture** : x64/Arm64/PowerPC ... |
| - **Eigen Version** : 5.0.0 |
| - **Compiler Version** : gcc-12.0 |
| - **Compile Flags** : -O3 -march=native |
| - **Vector Extension** : SSE/AVX/NEON ... |
| |
| ### Minimal Example |
| <!-- |
| Please create a minimal reproducing example here that exhibits the problematic behavior. |
| The example should be complete, in that it can fully build and run. See the [the guidelines on stackoverflow](https://stackoverflow.com/help/minimal-reproducible-example) for how to create a good minimal example. |
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| You can also link to [godbolt](https://godbolt.org). Note that you need to click |
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| instead of the URL in your browser address bar. |
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| |
| ```cpp |
| // Insert your code here. |
| ``` |
| |
| ### Steps to reproduce the issue |
| <!-- Describe the necessary steps to reproduce the issue. --> |
| |
| 1. first step |
| 2. second step |
| 3. ... |
| |
| ### What is the current *bug* behavior? |
| <!-- Describe what actually happens. --> |
| |
| ### What is the expected *correct* behavior? |
| <!-- Describe what you should see instead. --> |
| |
| ### Relevant logs |
| <!-- Add relevant build logs or program output within blocks marked by " ``` " --> |
| |
| ### [Optional] Benchmark scripts and results |
| <!-- Please share any benchmark scripts - either standalone, or using [Google Benchmark](https://github.com/google/benchmark). --> |
| |
| ### Anything else that might help |
| <!-- |
| It will be better to provide us more information to help narrow down the cause. |
| Including but not limited to the following: |
| - lines of code that might help us diagnose the problem. |
| - potential ways to address the issue. |
| - last known working/first broken version (release number or commit hash). |
| --> |
