llvm dev - Jul 2010 - [LLVMdev] source line number for instruction

Hi,

I found the following at 
http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend:

  if (MDNode *N = I->getMetadata("dbg")) {  // Here 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();
  }

Does this also work for release 2.7? I did not see the same thing at the 
documentation for release 2.7.

Thanks,
Guoliang
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On Jul 6, 2010, at 10:44 PM, Guoliang Jin wrote:
> I found the following at
http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend
> :
>  if (MDNode *N = I->getMetadata("dbg")) {  // Here 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();
>  }
> Does this also work for release 2.7?
Yes.
> I did not see the same thing at the documentation for release 2.7.
The link you cited is the documentation for release 2.7.

Trevor

On 7/7/2010 3:08 PM, Trevor Harmon wrote:
> On Jul 6, 2010, at 10:44 PM, Guoliang Jin wrote:
>
>> I found the following at 
>> http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend:
>>  if (MDNode *N = I->getMetadata("dbg")) {  // Here 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();
>>  }
>> Does this also work for release 2.7?
>
> Yes.
OK. Thanks. I will try it.
>
>> I did not see the same thing at the documentation for release 2.7.
>
> The link you cited is the documentation for release 2.7.
I thought it was documentation for mainline LLVM. Also I thought the 
documentation for release 2.7 was 
http://llvm.org/releases/2.7/docs/SourceLevelDebugging.html which does 
not mention the same example.

Guoliang