CI-unixish.yml: added profile-guided optimization (PGO) to callgrind step by firewave · Pull Request #580 · cppcheck-opensource/simplecpp

g++ - 73,362,451 -> 64,757,385
g++ (system) - 1,193,552,892 -> 1,024,590,246
clang++ - 69,009,338 -> 62,589,273
clang++ (system) - 1,258,982,751 -> 1,140,735,791