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From Jim Apple <jbap...@cloudera.com>
Subject Autovectorization and alignment
Date Tue, 08 Nov 2016 00:36:52 GMT
This is an interesting story about how type punning on non-SIMD types
can cause autovectorization to choke at run time:

http://pzemtsov.github.io/2016/11/06/bug-story-alignment-on-x86.html

We use plenty of type punning, but I haven't checked to see if our use
of -fno-strict-aliasing prevents this kind of thing.

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