wasmedge-compile(1) General Commands Manual wasmedge-compile(1)

wasmedge-compile - AOT compiler for WasmEdge

wasmedge compile [OPTIONS] [--] WASM_OR_SO [ARG ...]

The wasmedge compile subcommand compiles WebAssembly into native machine code, i.e. it is an Ahead-of-Time (AOT) compiler.

For pure WebAssembly, the wasmedge(1) program (or the equivalent wasmedge run subcommand) will execute the WebAssembly code in interpreter mode. However, after compiling it with the wasmedge compile AOT compiler, the wasmedge subcommand can execute the WASM in AOT mode, with substantial performance improvements.

wasmedge compile was previously known as wasmedgec.

Show the help messages. Will ignore other arguments below.
Show the version information. Will ignore other arguments below.

Dump the LLVM IR to wasm.ll and wasm-opt.ll.
Generate a binary that supports interruptible execution.
Generate a generic binary of the current host CPU architecture.
Use --optimize LEVEL to set the optimization level. The LEVEL should be one of 0, 1, 2, 3, s, or z. The default value will be 2, which means O2.

Enable generating code for counting time during execution.
Enable generating code for counting gas burned during execution.
Enable generating code for counting WebAssembly instructions executed.
Enable generating code for all statistics options include instruction counting, gas measuring, and execution time.

Disable Import/Export of mutable globals proposal.
Disable Non-trapping float-to-int conversions proposal.
Disable Sign-extension operators proposal.
Disable Multi-value proposal.
Disable Bulk memory operations proposal.
Disable Reference types proposal.
Disable SIMD proposal.
Enable Multiple memories proposal.
Enable Tail-call proposal.
Enable Extended-const proposal.
Enable Threads proposal.
Enable all features.

Assuming a WebAssembly program placed under the file fibonacci.wasm, set up so to export a fib() function and accepting a single i32 integer as the input parameter, one can execute the following:

$ wasmedge compile fibonacci.wasm fibonacci_aot.wasm
$ time wasmedge --reactor fibonacci_aot.wasm fib 30

The execution should be much faster compared to interpreter mode:

time wasmedge --reactor fibonacci.wasm fib 30

Copyright © 2019-2022 Second State INC. Licensed under the Apache License, Version 2.0.

wasmedge(1)

A complete manual of WasmEdge <https://wasmedge.org/docs/> can be found online.

2024-04-01