Function LLVMRustAppendModuleInlineAsm 

pub(crate) unsafe extern "C" fn LLVMRustAppendModuleInlineAsm(
    M: &Module,
    Asm: *const c_uchar,
    AsmLen: size_t,
    TargetFeatures: *const c_uchar,
    TargetFeaturesLen: size_t,
    TargetCpu: *const c_uchar,
    TargetCpuLen: size_t,
)

Append inline assembly to a module. See Module::appendModuleInlineAsm.