https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70509
--- Comment #2 from Zdenek Sojka <zsojka at seznam dot cz> --- (In reply to Zdenek Sojka from comment #0) > First broken dump seems to be .forwprop, where is: .forwprop4 , that is. The problem might be that simplify_bitfield_ref() does: tree-ssa-forwprop.c ... 1793: index = build_int_cst (TREE_TYPE (TREE_TYPE (m)), idx * size); ... which builds the index of type "unsigned char", which wraps around from 256 to 0. Is there any reason to have index of type "TREE_TYPE (TREE_TYPE (m))" in that statement? or am I reading the code incorrectly?
