Index: llvm/lib/Analysis/StackLifetime.cpp
===================================================================
--- llvm/lib/Analysis/StackLifetime.cpp
+++ llvm/lib/Analysis/StackLifetime.cpp
@@ -85,8 +85,8 @@
     while (!WorkList.empty()) {
       const Instruction *I = WorkList.pop_back_val();
       for (const User *U : I->users()) {
-        if (auto *BI = dyn_cast<BitCastInst>(U)) {
-          WorkList.push_back(BI);
+        if (U->stripPointerCasts() == AI) {
+          WorkList.push_back(cast<Instruction>(U));
           continue;
         }
         auto *UI = dyn_cast<IntrinsicInst>(U);