https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99105
--- Comment #12 from Jan Hubicka <hubicka at ucw dot cz> --- > Ah, yeah, that will make a big difference. > So clang is using 'make check', running a test-suite for a PGO build, right? It uses make check-llvm make check-clang and then it rebuilds whole llvm with the instrumented compiler. Honza
