[LLVMdev] Is line number in DbgStopPointInst in LLVM accurate?

[hc2428 at columbia.edu]

Quoting hc2428 at columbia.edu:

The C or CXX flags are "-O0 -g". I am not using any optimization options.

> Dear developers,
>     When I try to map line numbers in source code back to LLVM
> basicblocks, I meet some problems: there is a source file with 1500
> lines of code, but when I use BasicBlockPass to collect all
> DbgStopPoint instructions in this file, I can only get 500 lines of
> code.
>     The source code and the collected results are both attached.
>     Is there any way to map line numbers in source code back to an
> LLVM basicblock precisely? Can LLVM-2.6 do this?
>
> Thanks,
> Heming