Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!claris!sts!cohesive!megatest!palowoda
From: palowoda@megatest.UUCP (Bob Palowoda)
Newsgroups: comp.unix.i386
Subject: Re: SCO MicroSoft C Compiler comments
Message-ID: <7396@megatest.UUCP>
Date: 29 Aug 89 08:03:05 GMT
References: <196@crdos1.crd.ge.COM>
Organization: Megatest Corporation, San Jose, Ca
Lines: 42

From article <196@crdos1.crd.ge.COM>, by davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr):
> 
>   Before I bought Xenix for my home machine I got copies of Xenix/386,
> ix/386 and MicroPort. The Xenix compiler was best in overall speed and
> did not have any internal failures. Both MP and ix had some cases in
> which the C compiler would generate code which the assembler couldn't
> handle, using registers not in the 386 (R10 and R11 are PDP-11).
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 Well this is something I could live with *when* I run into it. I must
 have compilied 20meg of misc c code and still haven't seen this.
 I'm useing the ESIX C compiler.       

  
> 
>   Trying later versions I find that the MSC compiler still produces
> better code by a small margin, although not all you might be led to
> believe from the ads ;-) 

  I agree that there optimizer is better. But when I turn on the 
  loop-optimizer in Xenix MSC it produces "space-kadet loops".
  Runtime problems really bother me like this because no matter
  how well you QA your software there is a good chance this gets
  through the pipe. This *I* can accept, but when my customers
  run into it gets really messy.

  I would be interested to know what 386 Utilities on Xenix are 
  still compilied with the 286 compiler. Can someone do a 
  file * on the /bin and /usr/bin directories and pipe me the 
  output.

  Also is the lib files for Xenix386 created with the optimizer 
  turned on?  In SCO UNIX?             


   ---Bob

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