-ffast-math
Eli the Bearded
* at eli.users.panix.com
Wed Sep 7 00:39:43 EDT 2022
https://twitter.com/moyix/status/1567167774039973888
Brendan Dolan-Gavitt @moyix
New blog post is live! In which I download 4 TB of Python packages
containing native x86-64 libraries and see how many of them use
-ffast-math, potentially altering floating point behavior in any
program unlucky enough to load them!
https://moyix.blogspot.com/2022/09/someones-been-messing-with-my-subnormals.html
8:08 AM - Sep 6, 2022
It's quite an adventure, a longish read but fun.
Elijah
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TL;DR: two dependencies using same misguided makefile cause most issues
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