On Thu, Aug 04, 2016 at 12:54:51PM -0700, Junio C Hamano wrote:
> Jeff King <[email protected]> writes:
>
> > Not that you probably need more random cases of C code, but I happened
> > to be looking at a diff in git.git today, b333d0d6, which is another
> > regression for the compaction heuristic.
>
> Wow, that one is _really_ bad. Does it have something to do with
> the removal being at the very end of the file?
I think so. If it were:
func1() {
... unique stuff ...
... shared ending ...
}
func2() {
... more unique stuff ...
... shared ending ...
}
unrelated_func() {
}
and we dropped func2, then I think the blank line between func2() and
unrelated_func() would cause the compaction heuristic to stop shifting.
OTOH, if it were:
func2() {
...
}
unrelated_func() {
}
with no newline, you get a similar badly-shifted diff (which is not
surprising, as we were given no syntactic hint that "func2" is a
separate unit from "unrelated_func").
-Peff
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