hrm...

  wget http://download.savannah.gnu.org/releases/tinycc/tcc-0.9.27.tar.bz2
  tar -xzf tcc-0.9.27.tar.bz2
  cd tcc-0.9.27
  ./configure
  time make

generates:

  ...
  make   5.01s user 0.43s system 95% cpu 5.720 total

so I guess there are some fast c compilers too...