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Message-ID: <52E404ED.80302@gmail.com>
Date: Sat, 25 Jan 2014 18:39:41 +0000
From: Matej Kosik <5764c029b688c1c0d24a2e97cd764f@gmail.com>
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Subject: [Caml-list] ocaml{c,opt} choked

Hi,

I am using ocaml 4.01.0.

I have noticed the following strange behavior:

When I try to compile this fragment:
(irrelevant parts of the original program were removed)

  let a b = b []
  let c _ _ d = d []
  let _ = a c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""
            c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""

it takes 11 seconds to complete.

This fragment.

  let a b = b []
  let c _ _ d = d []
  let _ = a c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""
            c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""
            c ""

compiles in 22 seconds.

This fragment:

  let a b = b []
  let c _ _ d = d []
  let _ = a c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""
            c "" c "" c "" c "" c "" c "" c "" c "" c "" c "" c ""
            c "" c ""

compiles in 44 seconds.

I would like to ask: is this is a known phenomenon?
-------------------------------------------------------------------
The context:

I have started to apply the advice given here:
https://sympa.inria.fr/sympa/arc/caml-list/2013-11/msg00207.html
That way I've got terms with which ocaml{c,opt} struggles.