Add CI infrastructure for pre-merge smoke tests. This patch adds pre-merge smoke tests for x86 Linux using gcc-10 and clang-10. Closes #2188.
Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
For more information go to http://eigen.tuxfamily.org/.
For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.