We make blockchain based on substrate framework. Our nodes execute .wasm runtime using wasmtime, which allows us to do forkless upgrades. We also have .wasm smart contracts that compile to wasm32v1-none. Inside our runtime we use wasm-parser and wasm-encoder for instrumentation (stack limits, adding gas globals). Neither our runtime nor the smar contarcts should contain f32 / f64 instructions, since they are non-deterministic. Could you add compile option to disable f32 / f64 instructions? We have already configured wasm-parser for our .wasm programs and it works fine, but we don't have the option to customize Instruction type in wasm-encoder. I could do PR, just want hear opinion on it.

ref gear-tech/gear#4604