https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145
--- Comment #16 from Mircea Namolaru <mircea.namolaru at inria dot fr> --- Right, the NULL check fixed this for previous versions of GCC. For the current version, it works without these NULL checks (the NULL paths are not followed). The relevant scop fields are always initialized to empty maps, so they are never NULL. The problematic call to compute_deps where the NULL problem occured was from parallelization check code (compute_loop_level_carries_dependencies), code no longer in GCC.
