[LLVMdev] Pulling line number/file/path information from DbgStopPointInst instructions

Bill Wendling isanbard at gmail.com
Wed Apr 29 18:29:12 PDT 2009

On Wed, Apr 29, 2009 at 6:04 PM, Sarah Thompson <sarah at findatlantis.com> wrote:
> Hi folks,
> I had some code that used to work fine in earlier versions of LLVM,
> but is now failing. I have some code that expands DbgStopPointInst
> instructions to my own entry points in an opt pass, but it's currently
> failing to get the file name and path back, though it is still
> correctly getting line numbers. If you happen to have a code fragment
> that is known to work, it would be much appreciated.
Hi Sarah,

I'm not sure if this will help you out, but take a look at how
DwarfWriter::getOrCreateSourceID is used. Unfortunately, I don't see
how to get the file name from a DbgStopPointInstr right offhand.
Things in the CodeGen/AsmPrinter/DwarfWriter.cpp file have changed
quite a bit in recent months...


> What it used to work was calling getFileName()->getNameStr() on the
> DbgStopPointInst, which returned a std::string, but in LLVM 2.5 the
> code compiles, but that string is empty. Any clues?
> [s]
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