[PATCH] D29578: Propagate debug info for Phi node in SSAUpdater

[Sam Parker via Phabricator via llvm-commits]

samparker added inline comments.


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Comment at: lib/Transforms/Utils/SSAUpdater.cpp:218
 
+void SSAUpdater::UpdatePHIDebugInfo(PHINode *PHI) {
+  LLVMContext &C = PHI->getParent()->getContext();
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dberlin wrote:
> This looks really badly n^2 per call.
> Is there really no faster way?
> 
I know it is going to be slow, but it was the only way I found... I have basically no experience in this area though and was hoping to get some suggestions.  


https://reviews.llvm.org/D29578