[LLVMdev] Splitting a basic block creates an instruction without debug metadata

[Trevor Harmon]

Hi,

I'm not sure if this is really a problem or not, but I noticed that if  
you're working with bitcode that has debug metadata, and you split a  
BasicBlock using llvm::SplitBlock or BasicBlock::splitBasicBlock, the  
unconditional branch added to the new block will lack debug metadata.  
This turned out not to be a problem for me, since my analysis pass  
needs only one instruction in the block to have metadata, but perhaps  
it will be a problem for others. Ignoring for now the issue of just  
how to manufacture the metadata for the new instruction, is this a bug?

Trevor