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Re: ftree-vectorize flag
- From: Ira Rosen <IRAR at il dot ibm dot com>
- To: vahagvahag <vahagvardanyan at gmail dot com>
- Cc: gcc-help at gcc dot gnu dot org
- Date: Sat, 26 Feb 2011 15:23:19 +0200
- Subject: Re: ftree-vectorize flag
- References: <31018642.post@talk.nabble.com>
gcc-help-owner@gcc.gnu.org wrote on 26/02/2011 09:48:59 AM:
>
>
> sorry for bad English((
>
> i want to know, if the flag ftree-vectorize turns on some other
> optimization??
It turns on tree-level if-conversion (controlled by -ftree-loop-if-convert
starting from 4.6), and basic block vectorization -ftree-slp-vectorize
documented here
http://gcc.gnu.org/onlinedocs/gcc-4.5.2/gcc/Optimize-Options.html#Optimize-Options
.
Ira
>
> for example m the flag O3 automatic turns on some other
> flags(finline-functions , and others)
>
> so if the flag ftree-vectorize turns on some other flags, and where i can
> read about it?
> --
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> flag-tp31018642p31018642.html
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>