[Bug ipa/98265] [10 Regression] gcc-10 has significantly worse code generated with -O2 compared to -O1 (or gcc-9 -O2) when using the Eigen C++ library

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98265

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[10/11 Regression] gcc-10   |[10 Regression] gcc-10 has
                   |has significantly worse     |significantly worse code
                   |code generated with -O2     |generated with -O2 compared
                   |compared to -O1 (or gcc-9   |to -O1 (or gcc-9 -O2) when
                   |-O2) when using the Eigen   |using the Eigen C++ library
                   |C++ library                 |
             Status|RESOLVED                    |ASSIGNED
      Known to work|                            |11.0
         Resolution|FIXED                       |---