https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79704
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I had recently a quick look at http://www.phoronix.com/scan.php?page=article&item=gcc7-clang4-jan&num=2 EP-DGEMM where Phoronix claims clang is over 2.5x faster than gcc and in my limited understanding pretty much all time is spent in the system libraries not compiled with the test (blas, and even one written in fortran), so I don't understand any difference at all on that test (unless it uses very different libraries or very different configuration, e.g. using C blas instead of Fortran blas or vice versa etc.). After all, LLVM doesn't have a viable Fortran FE anyway.