https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89478
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|tree-optimization |c++ Blocks| |54367 --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- For the original testcase except for test4, it is optimized for C++20 and not C++17. Most likely because lambdas are considered constexpr if they can be such. In test4 I suspect the uninit variable is making it not considered constexpr. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54367 [Bug 54367] [meta-bug] lambda expressions