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Enable wasm-opt MVP features only #891

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Jan 5, 2023
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Enable wasm-opt MVP features only #891

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4 changes: 4 additions & 0 deletions crates/build/src/wasm_opt.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,10 @@ impl WasmOptHandler {
);

OptimizationOptions::from(self.optimization_level)
// Binaryen (and wasm-opt) now enables the `SignExt` and `MutableGlobals`
// features by default, so we want to disable those for now since
// `pallet-contracts` still needs to enable these.
.mvp_features_only()
// the memory in our module is imported, `wasm-opt` needs to be told that
// the memory is initialized to zeroes, otherwise it won't run the
// memory-packing pre-pass.
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