I remember I read on this mlist about a testing tool. a script or something which took a source file in input and tried to swap lines and compile it, then reported results... can't google it exacly.. any help ??
best regards
http://gcc.gnu.org/ml/gcc/2004-06/msg00528.html
If your memory if really good, there was another one called slice, though google and searching my email archive aren't turning up the right hits.