The semantics of floats is fully determined by the Wasm standard, with the exception of the bit-wise representation of NaNs, and to address this, the replica instruments your wasm code before execution to normalize the NaNs, so go ahead using them 
The semantics of floats is fully determined by the Wasm standard, with the exception of the bit-wise representation of NaNs, and to address this, the replica instruments your wasm code before execution to normalize the NaNs, so go ahead using them