From my experience with diffing a moved segment will only result in showing two unrelated differences (an insert and a cut) which are not identified as a move.

found this proposing other tools I haven't used yet,

http://stackoverflow.com/questions/12590947/using-git-diff-to-detect-code-movement-how-to-use-diff-options

But these methods are language agnostic and don't use semantic knowledge of Perl.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^2: semantic diff for Perl code by LanX
in thread Semantic diff for Perl code by LanX

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