> hello.c: In function ‘main’: > hello.c:13:1: internal compiler error: in calc_dfs_tree, at dominance.c:394 > Please submit a full bug report, > with preprocessed source if appropriate. > See <http://gcc.gnu.org/bugs.html> for instructions.
This error means that some basic blocks are unreachable in the CFG. The CFG needs to be cleaned up before that point. -- Eric Botcazou
