Assemble an IR file and include a module hash in the produced Bitcode file

LLVM Intermediate Representation (`.ll`) to Bitcode (`.bc`) assembler.
More information: <https://llvm.org/docs/CommandGuide/llvm-as.html>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

llvm-as --module-hash -o {{path/to/out.bc}} {{path/to/source.ll}}

click the source code to copy install llvm-as on any operating system with command-not-found.com