This serie add simplification of binops and comparison where both operands are identical, and add an optional warning for those comparison. Luc Van Oostenryck (2): simplify '(x op x)' to '0', '1' or 'x' add warning option '-Wtautological-compare' lib.c | 2 ++ lib.h | 1 + simplify.c | 39 +++++++++++++++++++++++++++++ validation/optim/binops-same-args.c | 49 +++++++++++++++++++++++++++++++++++++ validation/tautological-compare.c | 35 ++++++++++++++++++++++++++ 5 files changed, 126 insertions(+) create mode 100644 validation/optim/binops-same-args.c create mode 100644 validation/tautological-compare.c -- 2.10.2 -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html