Re: Compiler efficiency

Article View: comp.sys.mac

Article #21120

#21120

From: Gary Evesson
Date: Mon, 02 Nov 1987 03:05

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In article palarson@watdragon.waterloo.edu (Paul Larson) writes:

>I have heard some murmurs (they weren't loud enough to be be termed complaints)
>that some (many?  all?) compilers for the mac produce code of questionable 
>efficiency.  I don't know enough assembly to prove or disprove this statement.
>Is there any merit to these murmurs?
>
>	Johan Larson
>		DA - Devil's Advocate

The last time I looked at the assembler produced by a Mac compiler, it was
absolutely disgusting. Simple things such as redundant branches were generated.
E.g.
		jmp	.1

		...

	.1	jmp	.2

I believe that some compilers have optimising assemblers, but I don't think
that is really much of an excuse for the above horror.

							gary@fairlight.oz
							Gary Evesson

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!munnari!otc!metro!fairlight!gary
From: gary@fairlight.oz (Gary Evesson)
Newsgroups: comp.sys.mac
Subject: Re: Compiler efficiency
Message-ID: <304@fairlight.oz>
Date: Sun, 1-Nov-87 22:05:53 EST
Article-I.D.: fairligh.304
Posted: Sun Nov  1 22:05:53 1987
Date-Received: Fri, 6-Nov-87 20:46:17 EST
References: <3987@watdragon.waterloo.edu>
Reply-To: gary@fairlight.oz (Gary Evesson)
Organization: Fairlight Instruments, Sydney, Australia
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