Re: [patch] Use straight-line sequence for signed overflow additive operation

[Bernd Schmidt]

On 10/27/2016 05:26 PM, Eric Botcazou wrote:

as suggested by Segher, this changes the generic signed-signed-signed case of
expand_addsub_overflow to using a straight-line code sequence instead of a
branchy one, the new sequence being also shorter.

        * dojump.c (do_jump_by_parts_greater_rtx): Invert probability when
        swapping the arms of the branch.
        * internal-fn.c (expand_addsub_overflow): Use a straight-line code
        sequence for the generic signed-signed-signed case.

Ok.


Bernd