Comment by magicalhippo
10 hours ago
> It can definitely break some things
I recall it totally fudged up the ray-axis aligned bounding box intersection routine in the raytracer I worked on. The routine relied on infinities being handled correctly, and -ffast-math broke that.
I see the linked article goes into that aspect in detail, wish I had it back then.
IIRC we ended up disabling it for just that file, as it did speed up the rest my a fair bit.
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