[PATCH] D141988: [llvm] Fix bug in DemoteRegToStack where DenseMap is not used

[riChar via Phabricator via llvm-commits]

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`Loads` is used to keep track of and reuse load instructions we insert, but these value are inserted into `Loads`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D141988

Files:
  llvm/lib/Transforms/Utils/DemoteRegToStack.cpp


Index: llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
===================================================================
--- llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
+++ llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
@@ -74,6 +74,7 @@
             V = new LoadInst(I.getType(), Slot, I.getName() + ".reload",
                              VolatileLoads,
                              PN->getIncomingBlock(i)->getTerminator());
+            Loads[PN->getIncomingBlock(i)] = V;
           }
           PN->setIncomingValue(i, V);
         }


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