Chapter 9 ( Appendix )

    The assembler transforms the human readable LLVM assembly to LLVM bitcode.

    Usage:

    llvm-dis

    The disassembler transforms the LLVM bitcode to human readable LLVM assembly.

    Usage:

    2. $ llvm-dis < hello.bc | less

    lli is the LLVM interpreter, which can directly execute LLVM bitcode.

    Usage:

    llc

    llc is the LLVM backend compiler, which translates LLVM bitcode to native code assembly.

    Usage:

    2. $ cc hello.s -o hello.native
    4. $ llc -march=arm hello.bc -o hello.s

    opt reads LLVM bitcode, applies a series of LLVM to LLVM transformations and then outputs the resultant bitcode. opt can also be used to run a specific analysis on an input LLVM bitcode file and print out the resulting IR or bitcode.

    Usage:

    llvm-link

    llvm-link links multiple LLVM modules into a single program. Together with opt this can be used to perform link-time optimizations.

    Usage:

    1. $ llvm-link foo.ll bar.ll -o foobar.ll