llgo is a compiler for Go, written in Go, and using the LLVM compiler infrastructure.

llgo is a fledgling, and is being developed primarily as an educational exercise. It is not presently useful for real work. Progress will be reported at http://blog.awilkins.id.au.

The recommended way to install llgo is to use go get. You'll need to set a couple of environment variables first:

export CGO_CFLAGS="`llvm-config --cflags`"
export CGO_LDFLAGS="`llvm-config --ldflags` -Wl,-L`llvm-config --libdir` -lLLVM-`llvm-config --version`"
go get github.com/axw/llgo/llgo

You must have LLVM 3.1+ in your path. At the time of writing, LLVM 3.1 has not yet been released, so you must build it from the LLVM SVN repository.

Currently there is just a compiler which produces LLVM bitcode, and there is no integration with gomake/goinstall/cgo, etc. To compile a Go source file, simply run llgo <file.go>, which will emit LLVM bitcode to stdout. To produce human-readable LLVM assembly code, supply an additional -dump command line argument before <file.go>.