Unused Type Alias GeneralBlockPanelKernel.h:1211

Summary

An unused type alias warning/error surfaces in General Block Panel Kernel. Location: https://gitlab.com/libeigen/eigen/-/blob/master/Eigen/src/Core/products/GeneralBlockPanelKernel.h?ref_type=heads#L1211

Warning/error:

Eigen/src/Core/products/GeneralBlockPanelKernel.h:1211:11: error: unused type alias 'LhsPacketType' [-Werror,-Wunused-local-typedef]
 1211 |     using LhsPacketType = std::remove_all_extents_t<std::remove_reference_t<LhsArray>>;

Environment

• Operating System : Linux
• Architecture : x64
• Eigen Version : head
• Compiler Version : Clang++-20/21
• Compile Flags : -Werror -Wunused-local-typedef
• Vector Extension : N/A

Minimal Example

Reference: https://github.com/FrancoisCarouge/Kalman/actions/runs/22165959260/job/64238291967?pr=880#step:9:26

Steps to reproduce the issue

1. Compiler with extra errors.

What is the current bug behavior?

Compilation error.

What is the expected correct behavior?

Warning / error free successful compilation.

Relevant logs

Reference: https://github.com/FrancoisCarouge/Kalman/actions/runs/22165959260/job/64238291967?pr=880#step:9:26

Anything else that might help

A possible fix might be to move the alias type declaration in the helper macro a few lines below.