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Re: recent troubles with float vectors & bitwise ops
- From: Paolo Bonzini <bonzini at gnu dot org>
- To: Ross Ridge <rridge at csclub dot uwaterloo dot ca>
- Cc: gcc at gcc dot gnu dot org
- Date: Thu, 23 Aug 2007 08:20:46 +0200
- Subject: Re: recent troubles with float vectors & bitwise ops
- References: <20070823013503.426FE74B95@caffeine.csclub.uwaterloo.ca>
Why did Intel split up these instructions in the first place, is it
because they wanted to have a seperate vector units in some cases?
I don't know and I don't care that much.
To some extent I agree with Andrew Pinski here. Saying that you need
support in a generic vector extension for "vector float | vector float"
in order to generate ANDPS and not PXOR, is just wrong. That should be
done by the back-end.
Paolo