[pat_shaughnessy]

I tried that while researching the article, but found the call to "puts" doesn't link without the standard library code. And without a "puts" or similar call to produce output LLVM optimized the entire program away :)

I suppose this could work if, as you suggest, I manually called out to a lib_c function like printf instead.

[RX14]

Yeah, puts is part of the part of the standard library, and uses crystal's evented io framework, fiber scheduler and libevent. This is what most of the extra code in the asm output will be doing.