Re: deadcode optimization

tgi@netgem.com (Tristan Gingold)
8 Mar 2001 13:14:51 -0500

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From: tgi@netgem.com (Tristan Gingold)
Newsgroups: comp.compilers
Date: 8 Mar 2001 13:14:51 -0500
Organization: Compilers Central
References: 01-03-012 01-03-022 01-03-034
Keywords: linker, optimize, comment
Posted-Date: 08 Mar 2001 13:14:51 EST

Norman Black wrote:
>"Smart linking" is trivial for a compiler do handle and have ALL
>linkers in existence support the unused code "removal".
>
>All that need be done is have the compiler output library/archive
>files directly with one procedure per object in the library. Our
>compilers have done this since 1987 and any linker appropriately does
>not link in unused code.


This is not so easy: what about static variables ? You can rename them, but
you will break debugger compatibility...


Tristan.
[Dead code is dead code; if nothing refers to them, you can safely remove
them. -John]

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