Hi Clemens Hammacher, I try your method, and it prints what I want. I am grateful for your info. Chia Lun Liu -- View this message in context: http://llvm.1065342.n5.nabble.com/How-to-print-machine-code-of-JIT-IR-tp52776p52804.html Sent from the LLVM - Dev mailing list archive at Nabble.com.