[lindig]

Quick anecdote: I always demoed Quest by running it in a loop testing GCC on an Apple laptop and it would always find a compiler bug. No longer, it seems. I've tried it on OS X 10.10.5 today and so far couldn't find a bug in GCC or Clang.

[andrewchambers]

I think the interop between compilers may have more bugs since that isn't tested for complicated struct args much. Another good place to try is the tcc arm port.