[Bug tree-optimization/91734] gcc skip an if statement with "-O1 -ffast-math"
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Sep 11 09:41:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91734
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So two things:
-funsafe-math-optimizations
assumes there are no denormals (subnormals) or they are flushed to zero.
-ffinite-math-only
assumes that infinite and nans don't exists (IIRC).
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