Man page - wasmedge-compile(1)

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Manual

wasmedge-compile

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
Generic program information
Basic options
Statistics information
WebAssembly proposals
EXAMPLE
AUTHOR
SEE ALSO
Regular manual pages
Full documentation

NAME

wasmedge-compile - AOT compiler for WasmEdge

SYNOPSIS

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

DESCRIPTION

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 .

OPTIONS

Generic program information

-h, --help

Show the help messages. Will ignore other arguments below.

-v, --version

Show the version information. Will ignore other arguments below.

Basic options

--dump

Dump the LLVM IR to wasm.ll and wasm-opt.ll.

--interruptible

Generate a binary that supports interruptible execution.

--generic-binary

Generate a generic binary of the current host CPU architecture.

--optimize

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.

Statistics information

--enable-time-measuring

Enable generating code for counting time during execution.

--enable-gas-measuring

Enable generating code for counting gas burned during execution.

--enable-instruction-count

Enable generating code for counting WebAssembly instructions executed.

--enable-all-statistics

Enable generating code for all statistics options include instruction counting, gas measuring, and execution time.

WebAssembly proposals

--disable-import-export-mut-globals

Disable Import/Export of mutable globals proposal.

--disable-non-trap-float-to-int

Disable Non-trapping float-to-int conversions proposal.

--disable-sign-extension-operators

Disable Sign-extension operators proposal.

--disable-multi-value

Disable Multi-value proposal.

--disable-bulk-memory

Disable Bulk memory operations proposal.

--disable-reference-types

Disable Reference types proposal.

--disable-simd

Disable SIMD proposal.

--enable-multi-memory

Enable Multiple memories proposal.

--enable-tail-call

Enable Tail-call proposal.

--enable-extended-const

Enable Extended-const proposal.

--enable-threads

Enable Threads proposal.

--enable-all

Enable all features.

EXAMPLE

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