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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.forth
Subject: Re: LLVM and Forth
Date: Wed, 05 Apr 2017 18:20:29 -0700
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john <anon@example.com> writes:
> I seem to remember when I was looking at assemblers that fasm does
> multiple passes to perform some optimisation. Perhaps a fasm user could
> confirm that?

I don't know about fasm, but there are instruction sets where branch
instructions can be encoded more compactly if the branch target is
within a certain distance.  But that distance might depend on the
encodings of intervening branch instructions, so it can take a few
iterations to get the shortest possible encoding.