[n00b101]

So the current toolchain involves using emscripten to generate asm.js and then using binaryen to convert asm.js to WebAssembly. Unfortunately emscripten depends on a fork of LLVM (FastComp), with no plans for a proper LLVM asm.js backend.

Are there plans for a properly WebAssembly LLVM backend that does not depend on forking LLVM (like emscripten)?

[sunfish]

Yes: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/We...

[kevingadd]

WebAssembly's LLVM backend is currently under development in LLVM trunk by multiple people.