The question is: Do you trust a manufacturer that can't write proper batch files for its command-line tools to write a compiler (which is infinitely more complex that any batch file) that works correctly?

By, er, pure coincidence, I also had to battle some very, very bizarre compiler bugs with the toolchain in question. And I don't mean "lawyer" C code, but a simple loop with a constant number of iterations that wouldn't work unless, for some weird reason, I left the debug symbols in the object files.

I eventually tracked the problem down to an incorrectly generated jump address - instead of jumping back to the beginning of the loop, the compiler generated a jump address outside the loop if I turned off the debug symbols.