llvm-as

LLVM Intermediate Representation (.ll) to Bitcode (.bc) assembler. More information: https://llvm.org/docs/CommandGuide/llvm-as.html.

llvm-as -o path/to/out.bc path/to/source.ll

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

cat path/to/source.ll | llvm-as -o path/to/out.bc