0c1f37cc2d
From the GLSL 4.60 spec Section 5.9 (Expressions):
"Dividing by zero does not cause an exception but does result in
an unspecified value."
Fixes: 89285e4d47 "nir: add new constant folding infrastructure"
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105271