[PATCH] D100567: BPF: emit debuginfo for Function of DeclRefExpr if requested

[David Blaikie via Phabricator via cfe-commits]

dblaikie added a comment.

In D100567#2696095 <https://reviews.llvm.org/D100567#2696095>, @yonghong-song wrote:

> Sorry, I know what is the segfault now after some debugging. It is because `auto *Fn = dyn_cast<llvm::Function>(LV.getPointer(*this));` is a NULL pointer after there is a definition before this.

Hmm, not sure I follow - is `LV.getPointer(*this)` returning null, or is the dyn_cast returning null because the thing isn't an llvm::Function? If it's not a function, what is it?


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