https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68785
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to David Binderman from comment #14) > Interestingly, I ran the code in comment 8 through a valgrind version > of recent gcc trunk, with the compiler flag -O2, and got this: > > ./gcc.dg/pr68785.c > ==49861== Invalid read of size 1 > ==49861== at 0xD9CDDD: count_nonzero_bytes(tree_node*, unsigned long, > unsigned long, unsigned int*, bool*, bool*, bool*, vr_values const*, > ssa_name_limit_t&) (tree-ssa-strlen.c:4891) > ==49861== by 0xD9CF17: count_nonzero_bytes(tree_node*, unsigned long, > unsigned long, unsigned int*, bool*, bool*, bool*, vr_values const*, > ssa_name_limit_t&) (tree-ssa-strlen.c:4801) > ==49861== by 0xDA19EE: count_nonzero_bytes (tree-ssa-strlen.c:4920) > ==49861== by 0xDA19EE: handle_integral_assign(gimple_stmt_iterator*, > bool*, vr_values const*) (tree-ssa-strlen.c:5547) Can you file a new bug please?
