[LLVMdev] Mapping bitcode to source code

[Devang Patel]

On Tue, Feb 9, 2010 at 11:16 PM, Trevor Harmon <Trevor.W.Harmon at nasa.gov> wrote:
> On Feb 9, 2010, at 11:13 AM, Trevor Harmon wrote:
>
>> Is there any information about these changes and why they were
>> necessary?
>
> I think I found it:
>
> http://nondot.org/~sabre/LLVMNotes/EmbeddedMetadata.txt
>
> Still looking for an API to access the metadata...

If you want to map llvm instruction to the source location then try

 if (MDNode *N = I->getMetadata("dbg")) {  // Where I is an LLVM instruction
   DILocation Loc(N);                                // DILocation is
in DebugInfo.h
   unsigned Line = Loc.getLineNumber();
   StringRef File = Loc.getFilename();
   StringRef Dir = Loc.getDirectory();
 }

Note, this is new and it won't work in llvm2.6.
-
Devang