Kevin Bracey <ke...@bracey.fi> writes:

> diff --git a/revision.c b/revision.c
> index a67b615..c88ded8 100644
> --- a/revision.c
> +++ b/revision.c
> @@ -429,10 +429,100 @@ static int rev_same_tree_as_empty(struct rev_info 
> *revs, struct commit *commit)
>       return retval >= 0 && (tree_difference == REV_TREE_SAME);
>  }
>  
> +struct treesame_state {
> +     unsigned int nparents;
> +     unsigned char treesame[FLEX_ARRAY];
> +};

I have been wondering if we want to do one-bit (not one-byte) per
parent but no biggie ;-)

> @@ -1971,6 +2083,70 @@ static struct merge_simplify_state 
> *locate_simplify_state(struct rev_info *revs,
>       return st;
>  }
>  
> +static int mark_redundant_parents(struct rev_info *revs, struct commit 
> *commit)
> +{
> +...
> +             po=po->next;

        po = po->next;

> +     }

This seems to be identical (modulo tests) from the previous round,
which I found a reasonable thing to do.
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