https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63338
--- Comment #4 from Steven Stewart-Gallus <sstewartgallus00 at mylangara dot bc.ca> --- > What version of GCC and on which target? Right, I should have mentioned that earlier. > $ uname -a > Linux alonzo 3.13.0-34-generic #1trisquel1 SMP Sun Aug 24 04:17:04 UTC 2014 > x86_64 x86_64 x86_64 GNU/Linux > gcc --version > gcc (GCC) 4.9.1 > Copyright (C) 2014 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. There is NO > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > With -O2 GCC 4.9 takes 95s. That's somewhat reasonable (not the best obviously but if it's only one source file in the entire project that's okay.) I probably should have posted numbers earlier. For reference on my machine: > $ time gcc -std=gnu99 -c module.i > 11.365 secs > $ time gcc -std=gnu99 -O1 -c module.i > 161.176 secs
