[LLVMdev] Replacement for findStopPoint() in LLVM 2.7

[Török Edwin]

On 03/16/2010 06:52 PM, John Criswell wrote:
> Török Edwin wrote:
>> [snip]
>>
>> Ah, the method got moved to the instruction itself!
>>
>> dbgKind = Context->getMDKindID("dbg");
>> if (MDNode *Dbg = I->getMetadata(dbgKind)) {
>> ...
>>   
> 
> Thanks!  This appears to work.

Ok.

> 
> I also have code that looks up debug information for GlobalVariables and
> regular LLVM Value *'s.  For the former, I think I can look up their
> debug information by using the DebugInfoFinder class and iterating
> through all the MDNodes for global variables (using the
> global_variable_begin()/global_variable_end() methods).  Is this the
> best way to do it, or is there a better way?
> 
> For LLVM Value *s, I'm not sure how to get the debug information if they
> come from alloca instructions.  Is the best option to look for a use of
> the Value in a llvm.dbg.declare() call and then grab the debug metadata
> from that?

I wasn't following the dbg.declare changes, but I think there is a
llvm.dbg.value now that survives mem2reg (or rather it is dbg.declare
initially and becomes dbg.value later).

Best regards,
--Edwin