wasm-opt

Optimize WebAssembly binary files.

• Apply default optimizations and write to a given file:

wasm-opt -O {input.wasm} -o {output.wasm}

• Apply all optimizations and write to a given file (takes more time, but generates optimal code):

wasm-opt -O4 {input.wasm} -o {output.wasm}

• Optimize a file for size:

wasm-opt -Oz {input.wasm} -o {output.wasm}

• Print the textual representation of the binary to console:

wasm-opt {input.wasm} --print

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