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Re: -ftree-vectorize can't vectorize plus?
- From: "Devang Patel" <devang dot patel at gmail dot com>
- To: "Dorit Nuzman" <DORIT at il dot ibm dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 11 Sep 2006 09:30:17 -0700
- Subject: Re: -ftree-vectorize can't vectorize plus?
Can these type casts (from uchar to schar and back) be cleaned away
by some pass before vectorization, or do we need to teach the vectorizer
to ignore such type casts?
This was considered as tree-combiner's responsibility. However, I do not
know what is the current state and plan of tree-combiner pass. tree-combiner
pass, along with other combining activites, will remove unnecessary
cast (if possible).
-
Devang