1. 2019-08-12 [Bug c++/91024] [9 Regression] -Wimplicit-fallthrough gcc-bugs jakub at gcc dot g 2. 2019-08-12 [Bug c++/91024] [9 Regression] -Wimplicit-fallthrough gcc-bugs marxin at gcc dot 3. 2019-08-12 [Bug c++/91024] [9 Regression] -Wimplicit-fallthrough gcc-bugs jakub at gcc dot g 4. 2019-06-28 [Bug c++/91024] [9 Regression] -Wimplicit-fallthrough gcc-bugs jakub at gcc dot g 5. 2019-06-28 [Bug c++/91024] [9 Regression] -Wimplicit-fallthrough gcc-bugs jakub at gcc dot g