Re: How to eliminate redundant constant move instructions

Wei-Jen Chen <chenwj@cs.NCTU.edu.tw>
Thu, 10 Nov 2011 08:04:46 +0000 (UTC)

          From comp.compilers

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[11 earlier articles]
Re: How to eliminate redundant constant move instructions kaz@kylheku.com (Kaz Kylheku) (2011-11-03)
Re: How to eliminate redundant constant move instructions gah@ugcs.caltech.edu (glen herrmannsfeldt) (2011-11-03)
Re: How to eliminate redundant constant move instructions gneuner2@comcast.net (George Neuner) (2011-11-04)
Re: How to eliminate redundant constant move instructions gah@ugcs.caltech.edu (glen herrmannsfeldt) (2011-11-04)
Re: How to eliminate redundant constant move instructions gneuner2@comcast.net (George Neuner) (2011-11-04)
Re: How to eliminate redundant constant move instructions amker.cheng@gmail.com (amker) (2011-11-07)
Re: How to eliminate redundant constant move instructions chenwj@cs.NCTU.edu.tw (Wei-Jen Chen) (2011-11-10)
Re: How to eliminate redundant constant move instructions gneuner2@comcast.net (George Neuner) (2011-11-10)
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From: Wei-Jen Chen <chenwj@cs.NCTU.edu.tw>
Newsgroups: comp.compilers
Date: Thu, 10 Nov 2011 08:04:46 +0000 (UTC)
Organization: College of Computer Science, National Chiao Tung University
References: 11-10-019 11-11-004 11-11-009 11-11-025 11-11-030
Keywords: optimize, linker
Posted-Date: 11 Nov 2011 02:19:06 EST

> Unfortunately, cse only works on basis of extended basic block.
> Nothing it can do for global cases as reported in mentioned bug.


    Can LTO help?


Regards,
chenwj
[That's gcc's link time optimizer -John]



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