* combine.c (set_nonzero_bits_and_sign_copies): Use unsigned
arithmetics in masking operations.
(contains_muldiv): Likewise.
(try_combine): Likewise.
(find_split_point): Likewise.
(combine_simplify_rtx): Likewise.
(simplify_if_then_else): Likewise.
(simplify_set): Likewise.
(expand_compound_operation): Likewise.
(expand_field_assignment): Likewise.
(make_extraction): Likewise.
(extract_left_shift): Likewise.
(make_compound_operation): Likewise.
(force_to_mode): Likewise.
(make_field_assignment): Likewise.
(reg_nonzero_bits_for_combine): Likewise.
(simplify_shift_const_1): Likewise.
(simplify_comparison): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166027
138bc75d-0d04-0410-961f-
82ee72b054a4