WebAssembly compiler implemented in Go

Features

Source is a wasm32 binary module. The application embedding the compiler decides what import functions it provides.

Supports x86-64. Support for 64-bit ARM is planned. (Support for non-64-bit or non-little-endian CPU architectures isn't planned.)

Single-pass, low-latency ahead-of-time compilation. Early functions can be executed while the latter functions are still being compiled, even while the source is still being downloaded.

Generated code requires minimal runtime support. It may be run e.g. in a strict seccomp sandbox. Note: calling standard library ABIs is not supported.

Supports snapshot-and-restore across compiler versions and CPU architectures.