Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!wuarchive!uunet!munnari.oz.au!csource!david
From: david@csource.oz.au (david nugent)
Newsgroups: comp.unix.xenix
Subject: Re: compiler error..
Message-ID: <101.25E63DD1@csource.oz.au>
Date: 24 Feb 90 22:48:30 GMT
Organization: Unique Computing Pty Limited
Lines: 31

In article <945@chinacat.Lonestar.ORG> dated 22 Feb, Chip Rosenthal writes:

 > >       Compiler error (internal): Infinite spill
 > >What causes this, and is it fixed?
 >
 > My understanding is that it is due to a problem in the register usage
 > scheme in the Microsoft compiler, and is activated by complex
 > expressions.


I get this with complex expressions involving indexed arrays.  Now I usually 
evaluate the index in a separate statement using a temporary variable and 
let the optimiser do its bit to improve it (which it usually does).

  For example:

      j = whatever->arradr[(whatever->idx++)*4];

  Gets translated to

      i = (whatever->idx++) * 4;
      j = whatever->arradr[i];



           david

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