https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100683
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- Using an instrumented compiler I get % gfcg pr87993.f90 ../../work/libiberty/splay-tree.c:496:19: runtime error: member access within misaligned address 0x000100000001 for type 'struct splay_tree_s', which requires 8 byte alignment 0x000100000001: note: pointer points here <memory cannot be printed> ../../work/libiberty/splay-tree.c:501:11: runtime error: member access within misaligned address 0x301000007feedfa for type 'struct splay_tree_node_s', which requires 8 byte alignment 0x301000007feedfa: note: pointer points here <memory cannot be printed> f951: internal compiler error: Segmentation fault: 11