[llvm] [DebugInfo][RemoveDIs] Support maintaining DPValues in CodeGenPrepare (PR #73660)

[Orlando Cazalet-Hyams via llvm-commits]

================
@@ -6749,7 +6775,7 @@ bool CodeGenPrepare::optimizeLoadExt(LoadInst *Load) {
       !TLI->isLoadExtLegal(ISD::ZEXTLOAD, LoadResultVT, TruncVT))
     return false;
 
-  IRBuilder<> Builder(Load->getNextNode());
+  IRBuilder<> Builder(Load->getNextNonDebugInstruction());
----------------
OCHyams wrote:

:)

https://github.com/llvm/llvm-project/pull/73660