[LLVMdev] How to write a regression test case?

[Changcheng Wang]

hi,all:
i really want to how to write a regression test case,but i do not find
out a entire document about it.
By reading LLVM Testing Infrastructure Guide and FileCheck - Flexible
pattern matching file verifier, i only have a idea,but it is not
enough for me to write a test case.i need more detail about how to
write a RUN:lines.

thanks for you scan,wish your letter.

best wishes,

changcheng