Auto vectorization

javeria.abid@gmail.com
Thu, 15 May 2008 05:45:14 -0700 (PDT)

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Auto vectorization javeria.abid@gmail.com (2008-05-15)
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Re: Auto vectorization roland.leissa@googlemail.com (=?ISO-8859-1?Q?Roland_Lei=DFa?=) (2008-05-21)
Re: Auto vectorization al407@cam.ac.uk (Anton Lokhmotov) (2008-05-23)
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From: javeria.abid@gmail.com
Newsgroups: comp.compilers
Date: Thu, 15 May 2008 05:45:14 -0700 (PDT)
Organization: Compilers Central
Keywords: parallel, optimize, question
Posted-Date: 15 May 2008 20:12:52 EDT

Hi all:


I am currently working on the auto-vectorization phase in the GCC. I
have some points to discuss.


1-- How you define the profitability of auto-vectorization phase? Is
it just the speed up? If we do not get any speed up over scalar code
then there is no need to do auto-parallelization.


2--What are the phases or features in a compiler ( especially in the
GCC) that control the quality of auto-vectorization?


Thanks
JAY.

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