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- Newsgroups: comp.dsp
- Path: sparky!uunet!cs.utexas.edu!oakhill!oakhill!jeff
- From: jeff@dsp.sps.mot.com (Jeff Enderwick)
- Subject: Re: Motorola's gcc diffs?
- In-Reply-To: moshier@world.std.com's message of Wed, 23 Dec 1992 23:02:38 GMT
- Message-ID: <JEFF.92Dec23232131@dsp.sps.mot.com>
- Sender: news@oakhill.sps.mot.com
- Nntp-Posting-Host: 223.10.249.92
- Organization: Motorola DSP Compilers
- References: <1992Dec21.221938.14602@cheops.qld.tne.oz.au> <ANTSU.92Dec22230440@vega.utu.fi>
- <BzqIoE.35o@world.std.com>
- Date: 23 Dec 92 23:21:31
- Lines: 14
-
- > >you will find the complete...
- >This version seems to work all right, but it generates illegal instruction
- >sequences. I was informed by Motorola that there is a post-optimizer
- >that is required, and that this code was not made freely available.
- >Although I was able to hack up a simple peephole optimizer to get rid
- >of the illegal instructions, the gcc code is very inefficient.
- >I threw the whole thing away. Perhaps Motorola worked very hard
- >on their optimizer and it does miraculous things. Perhaps not.
-
- This is all news to me. The post-optimizer isn't required, and it isn't
- based on FSF source.
-
- Jeff Enderwick
- jeff@dsp.sps.mot.com
-